diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-09 16:57:56 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-09 16:57:56 -0800 |
| commit | fe78c54b4788b69bb2a8f157b524c933ea0c66d5 (patch) | |
| tree | 2970629a2aa722a72765d10c67895f3748428dab /arch/arm | |
| parent | 6da314122ddc11936c6f054753bbb956a499d020 (diff) | |
| parent | 1306b20daa38c1429dabacc9ec8b437cb585e427 (diff) | |
Merge tag 'omap-gpmc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC/OMAP GPMC driver cleanup and move from Arnd Bergmann:
"The GPMC driver has traditionally been considered a part of the OMAP
platform code and tightly interweaved with some of the boards.
With this cleanup, it has finally come to the point where it makes
sense to move it out of arch/arm into drivers/memory, where we already
have other drivers for similar hardware. The cleanups are still
ongoing, with the goal of eventually having a standalone driver that
does not require an interface to architecture code.
This is a separate branch because of dependencies on multiple other
branches, and to keep the drivers changes separate from the normal
cleanups"
* tag 'omap-gpmc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
memory: gpmc: Move omap gpmc code to live under drivers
ARM: OMAP2+: Move GPMC initcall to devices.c
ARM: OMAP2+: Prepare to move GPMC to drivers by platform data header
ARM: OMAP2+: Remove unnecesary include in GPMC driver
ARM: OMAP2+: Drop board file for 3430sdp
ARM: OMAP2+: Drop board file for ti8168evm
ARM: OMAP2+: Drop legacy code for gpmc-smc91x.c
ARM: OMAP2+: Require proper GPMC timings for devices
ARM: OMAP2+: Show bootloader GPMC timings to allow configuring the .dts file
ARM: OMAP2+: Fix support for multiple devices on a GPMC chip select
ARM: OMAP2+: gpmc: Sanity check GPMC fck on probe
ARM: OMAP2+: gpmc: Keep Chip Select disabled while configuring it
ARM: OMAP2+: gpmc: Always enable A26-A11 for non NAND devices
ARM: OMAP2+: gpmc: Error out if timings fail in gpmc_probe_generic_child()
ARM: OMAP2+: gpmc: Print error message in set_gpmc_timing_reg()
Diffstat (limited to 'arch/arm')
22 files changed, 43 insertions, 3153 deletions
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index f4d06aea8460..6e249324fdd7 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -79,7 +79,9 @@ config ARCH_OMAP2PLUS select CLKSRC_MMIO select GENERIC_IRQ_CHIP select MACH_OMAP_GENERIC + select MEMORY select OMAP_DM_TIMER + select OMAP_GPMC select PINCTRL select SOC_BUS select TI_PRIV_EDMA @@ -235,12 +237,6 @@ config MACH_TOUCHBOOK default y select OMAP_PACKAGE_CBB -config MACH_OMAP_3430SDP - bool "OMAP 3430 SDP board" - depends on ARCH_OMAP3 - default y - select OMAP_PACKAGE_CBB - config MACH_NOKIA_N810 bool @@ -282,16 +278,6 @@ config MACH_SBC3530 default y select OMAP_PACKAGE_CUS -config MACH_TI8168EVM - bool "TI8168 Evaluation Module" - depends on SOC_TI81XX - default y - -config MACH_TI8148EVM - bool "TI8148 Evaluation Module" - depends on SOC_TI81XX - default y - config OMAP3_EMU bool "OMAP3 debugging peripherals" depends on ARCH_OMAP3 diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 3b653b3ac268..08cc94474d17 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -6,7 +6,7 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \ -I$(srctree)/arch/arm/plat-omap/include # Common support -obj-y := id.o io.o control.o mux.o devices.o fb.o serial.o gpmc.o timer.o pm.o \ +obj-y := id.o io.o control.o mux.o devices.o fb.o serial.o timer.o pm.o \ common.o gpio.o dma.o wd_timer.o display.o i2c.o hdq1w.o omap_hwmod.o \ omap_device.o sram.o drm.o @@ -246,7 +246,6 @@ obj-$(CONFIG_MACH_OMAP3530_LV_SOM) += board-omap3logic.o obj-$(CONFIG_MACH_OMAP3_TORPEDO) += board-omap3logic.o obj-$(CONFIG_MACH_OVERO) += board-overo.o obj-$(CONFIG_MACH_OMAP3_PANDORA) += board-omap3pandora.o -obj-$(CONFIG_MACH_OMAP_3430SDP) += board-3430sdp.o obj-$(CONFIG_MACH_NOKIA_N8X0) += board-n8x0.o obj-$(CONFIG_MACH_NOKIA_RX51) += board-rx51.o sdram-nokia.o obj-$(CONFIG_MACH_NOKIA_RX51) += board-rx51-peripherals.o @@ -260,8 +259,6 @@ obj-$(CONFIG_MACH_OMAP3517EVM) += board-am3517evm.o obj-$(CONFIG_MACH_CRANEBOARD) += board-am3517crane.o obj-$(CONFIG_MACH_SBC3530) += board-omap3stalker.o -obj-$(CONFIG_MACH_TI8168EVM) += board-ti8168evm.o -obj-$(CONFIG_MACH_TI8148EVM) += board-ti8168evm.o # Platform specific device init code @@ -284,9 +281,6 @@ obj-y += $(onenand-m) $(onenand-y) nand-$(CONFIG_MTD_NAND_OMAP2) := gpmc-nand.o obj-y += $(nand-m) $(nand-y) -smc91x-$(CONFIG_SMC91X) := gpmc-smc91x.o -obj-y += $(smc91x-m) $(smc91x-y) - smsc911x-$(CONFIG_SMSC911X) := gpmc-smsc911x.o obj-y += $(smsc911x-m) $(smsc911x-y) ifneq ($(CONFIG_HWSPINLOCK_OMAP),) diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c deleted file mode 100644 index d21a3048d06b..000000000000 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ /dev/null @@ -1,632 +0,0 @@ -/* - * linux/arch/arm/mach-omap2/board-3430sdp.c - * - * Copyright (C) 2007 Texas Instruments - * - * Modified from mach-omap2/board-generic.c - * - * Initial code: Syed Mohammed Khasim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/input.h> -#include <linux/input/matrix_keypad.h> -#include <linux/spi/spi.h> -#include <linux/i2c/twl.h> -#include <linux/regulator/machine.h> -#include <linux/io.h> -#include <linux/gpio.h> -#include <linux/mmc/host.h> -#include <linux/platform_data/spi-omap2-mcspi.h> -#include <linux/platform_data/omap-twl4030.h> -#include <linux/usb/phy.h> - -#include <asm/mach-types.h> -#include <asm/mach/arch.h> -#include <asm/mach/map.h> - -#include "common.h" -#include <linux/omap-dma.h> -#include <video/omapdss.h> -#include <video/omap-panel-data.h> - -#include "gpmc.h" -#include "gpmc-smc91x.h" - -#include "soc.h" -#include "board-flash.h" -#include "mux.h" -#include "sdram-qimonda-hyb18m512160af-6.h" -#include "hsmmc.h" -#include "pm.h" -#include "control.h" -#include "common-board-devices.h" - -#define CONFIG_DISABLE_HFCLK 1 - -#define SDP3430_TS_GPIO_IRQ_SDPV1 3 -#define SDP3430_TS_GPIO_IRQ_SDPV2 2 - -#define ENABLE_VAUX3_DEDICATED 0x03 -#define ENABLE_VAUX3_DEV_GRP 0x20 - -#define TWL4030_MSECURE_GPIO 22 - -static uint32_t board_keymap[] = { - KEY(0, 0, KEY_LEFT), - KEY(0, 1, KEY_RIGHT), - KEY(0, 2, KEY_A), - KEY(0, 3, KEY_B), - KEY(0, 4, KEY_C), - KEY(1, 0, KEY_DOWN), - KEY(1, 1, KEY_UP), - KEY(1, 2, KEY_E), - KEY(1, 3, KEY_F), - KEY(1, 4, KEY_G), - KEY(2, 0, KEY_ENTER), - KEY(2, 1, KEY_I), - KEY(2, 2, KEY_J), - KEY(2, 3, KEY_K), - KEY(2, 4, KEY_3), - KEY(3, 0, KEY_M), - KEY(3, 1, KEY_N), - KEY(3, 2, KEY_O), - KEY(3, 3, KEY_P), - KEY(3, 4, KEY_Q), - KEY(4, 0, KEY_R), - KEY(4, 1, KEY_4), - KEY(4, 2, KEY_T), - KEY(4, 3, KEY_U), - KEY(4, 4, KEY_D), - KEY(5, 0, KEY_V), - KEY(5, 1, KEY_W), - KEY(5, 2, KEY_L), - KEY(5, 3, KEY_S), - KEY(5, 4, KEY_H), - 0 -}; - -static struct matrix_keymap_data board_map_data = { - .keymap = board_keymap, - .keymap_size = ARRAY_SIZE(board_keymap), -}; - -static struct twl4030_keypad_data sdp3430_kp_data = { - .keymap_data = &board_map_data, - .rows = 5, - .cols = 6, - .rep = 1, -}; - -#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 8 -#define SDP3430_LCD_PANEL_ENABLE_GPIO 5 - -static void __init sdp3430_display_init(void) -{ - int r; - - /* - * the backlight GPIO doesn't directly go to the panel, it enables - * an internal circuit on 3430sdp to create the signal V_BKL_28V, - * this is connected to LED+ pin of the sharp panel. This GPIO - * is left enabled in the board file, and not passed to the panel - * as platform_data. - */ - r = gpio_request_one(SDP3430_LCD_PANEL_BACKLIGHT_GPIO, - GPIOF_OUT_INIT_HIGH, "LCD Backlight"); - if (r) - pr_err("failed to get LCD Backlight GPIO\n"); - -} - -static struct panel_sharp_ls037v7dw01_platform_data sdp3430_lcd_pdata = { - .name = "lcd", - .source = "dpi.0", - - .data_lines = 16, - - .resb_gpio = SDP3430_LCD_PANEL_ENABLE_GPIO, - .ini_gpio = -1, - .mo_gpio = -1, - .lr_gpio = -1, - .ud_gpio = -1, -}; - -static struct platform_device sdp3430_lcd_device = { - .name = "panel-sharp-ls037v7dw01", - .id = 0, - .dev.platform_data = &sdp3430_lcd_pdata, -}; - -static struct connector_dvi_platform_data sdp3430_dvi_connector_pdata = { - .name = "dvi", - .source = "tfp410.0", - .i2c_bus_num = -1, -}; - -static struct platform_device sdp3430_dvi_connector_device = { - .name = "connector-dvi", - .id = 0, - .dev.platform_data = &sdp3430_dvi_connector_pdata, -}; - -static struct encoder_tfp410_platform_data sdp3430_tfp410_pdata = { - .name = "tfp410.0", - .source = "dpi.0", - .data_lines = 24, - .power_down_gpio = -1, -}; - -static struct platform_device sdp3430_tfp410_device = { - .name = "tfp410", - .id = 0, - .dev.platform_data = &sdp3430_tfp410_pdata, -}; - -static struct connector_atv_platform_data sdp3430_tv_pdata = { - .name = "tv", - .source = "venc.0", - .connector_type = OMAP_DSS_VENC_TYPE_SVIDEO, - .invert_polarity = false, -}; - -static struct platform_device sdp3430_tv_connector_device = { - .name = "connector-analog-tv", - .id = 0, - .dev.platform_data = &sdp3430_tv_pdata, -}; - -static struct omap_dss_board_info sdp3430_dss_data = { - .default_display_name = "lcd", -}; - -static struct omap2_hsmmc_info mmc[] = { - { - .mmc = 1, - /* 8 bits (default) requires S6.3 == ON, - * so the SIM card isn't used; else 4 bits. - */ - .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA, - .gpio_wp = 4, - .deferred = true, - }, - { - .mmc = 2, - .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA, - .gpio_wp = 7, - .deferred = true, - }, - {} /* Terminator */ -}; - -static struct omap_tw4030_pdata omap_twl4030_audio_data = { - .voice_connected = true, - .custom_routing = true, - - .has_hs = OMAP_TWL4030_LEFT | OMAP_TWL4030_RIGHT, - .has_hf = OMAP_TWL4030_LEFT | OMAP_TWL4030_RIGHT, - - .has_mainmic = true, - .has_submic = true, - .has_hsmic = true, - .has_linein = OMAP_TWL4030_LEFT | OMAP_TWL4030_RIGHT, -}; - -static int sdp3430_twl_gpio_setup(struct device *dev, - unsigned gpio, unsigned ngpio) -{ - /* gpio + 0 is "mmc0_cd" (input/IRQ), - * gpio + 1 is "mmc1_cd" (input/IRQ) - */ - mmc[0].gpio_cd = gpio + 0; - mmc[1].gpio_cd = gpio + 1; - omap_hsmmc_late_init(mmc); - - /* gpio + 7 is "sub_lcd_en_bkl" (output/PWM1) */ - gpio_request_one(gpio + 7, GPIOF_OUT_INIT_LOW, "sub_lcd_en_bkl"); - - /* gpio + 15 is "sub_lcd_nRST" (output) */ - gpio_request_one(gpio + 15, GPIOF_OUT_INIT_LOW, "sub_lcd_nRST"); - - omap_twl4030_audio_data.jack_detect = gpio + 2; - omap_twl4030_audio_init("SDP3430", &omap_twl4030_audio_data); - - return 0; -} - -static struct twl4030_gpio_platform_data sdp3430_gpio_data = { - .pulldowns = BIT(2) | BIT(6) | BIT(8) | BIT(13) - | BIT(16) | BIT(17), - .setup = sdp3430_twl_gpio_setup, -}; - -/* regulator consumer mappings */ - -/* ads7846 on SPI */ -static struct regulator_consumer_supply sdp3430_vaux3_supplies[] = { - REGULATOR_SUPPLY("vcc", "spi1.0"), -}; - -static struct regulator_consumer_supply sdp3430_vmmc1_supplies[] = { - REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"), -}; - -static struct regulator_consumer_supply sdp3430_vsim_supplies[] = { - REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"), -}; - -static struct regulator_consumer_supply sdp3430_vmmc2_supplies[] = { - REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"), -}; - -/* - * Apply all the fixed voltages since most versions of U-Boot - * don't bother with that initialization. - */ - -/* VAUX1 for mainboard (irda and sub-lcd) */ -static struct regulator_init_data sdp3430_vaux1 = { - .constraints = { - .min_uV = 2800000, - .max_uV = 2800000, - .apply_uV = true, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, -}; - -/* VAUX2 for camera module */ -static struct regulator_init_data sdp3430_vaux2 = { - .constraints = { - .min_uV = 2800000, - .max_uV = 2800000, - .apply_uV = true, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, -}; - -/* VAUX3 for LCD board */ -static struct regulator_init_data sdp3430_vaux3 = { - .constraints = { - .min_uV = 2800000, - .max_uV = 2800000, - .apply_uV = true, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, - .num_consumer_supplies = ARRAY_SIZE(sdp3430_vaux3_supplies), - .consumer_supplies = sdp3430_vaux3_supplies, -}; - -/* VAUX4 for OMAP VDD_CSI2 (camera) */ -static struct regulator_init_data sdp3430_vaux4 = { - .constraints = { - .min_uV = 1800000, - .max_uV = 1800000, - .apply_uV = true, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, -}; - -/* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */ -static struct regulator_init_data sdp3430_vmmc1 = { - .constraints = { - .min_uV = 1850000, - .max_uV = 3150000, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE - | REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, - .num_consumer_supplies = ARRAY_SIZE(sdp3430_vmmc1_supplies), - .consumer_supplies = sdp3430_vmmc1_supplies, -}; - -/* VMMC2 for MMC2 card */ -static struct regulator_init_data sdp3430_vmmc2 = { - .constraints = { - .min_uV = 1850000, - .max_uV = 1850000, - .apply_uV = true, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, - .num_consumer_supplies = ARRAY_SIZE(sdp3430_vmmc2_supplies), - .consumer_supplies = sdp3430_vmmc2_supplies, -}; - -/* VSIM for OMAP VDD_MMC1A (i/o for DAT4..DAT7) */ -static struct regulator_init_data sdp3430_vsim = { - .constraints = { - .min_uV = 1800000, - .max_uV = 3000000, - .valid_modes_mask = REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE - | REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }, - .num_consumer_supplies = ARRAY_SIZE(sdp3430_vsim_supplies), - .consumer_supplies = sdp3430_vsim_supplies, -}; - -static struct twl4030_platform_data sdp3430_twldata = { - /* platform_data for children goes here */ - .gpio = &sdp3430_gpio_data, - .keypad = &sdp3430_kp_data, - - .vaux1 = &sdp3430_vaux1, - .vaux2 = &sdp3430_vaux2, - .vaux3 = &sdp3430_vaux3, - .vaux4 = &sdp3430_vaux4, - .vmmc1 = &sdp3430_vmmc1, - .vmmc2 = &sdp3430_vmmc2, - .vsim = &sdp3430_vsim, -}; - -static int __init omap3430_i2c_init(void) -{ - /* i2c1 for PMIC only */ - omap3_pmic_get_config(&sdp3430_twldata, - TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_BCI | - TWL_COMMON_PDATA_MADC | TWL_COMMON_PDATA_AUDIO, - TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2); - sdp3430_twldata.vdac->constraints.apply_uV = true; - sdp3430_twldata.vpll2->constraints.apply_uV = true; - sdp3430_twldata.vpll2->constraints.name = "VDVI"; - - sdp3430_twldata.audio->codec->hs_extmute = 1; - sdp3430_twldata.audio->codec->hs_extmute_gpio = -EINVAL; - - omap3_pmic_init("twl4030", &sdp3430_twldata); - - /* i2c2 on camera connector (for sensor control) and optional isp1301 */ - omap_register_i2c_bus(2, 400, NULL, 0); - /* i2c3 on display connector (for DVI, tfp410) */ - omap_register_i2c_bus(3, 400, NULL, 0); - return 0; -} - -#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) - -static struct omap_smc91x_platform_data board_smc91x_data = { - .cs = 3, - .flags = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 | - IORESOURCE_IRQ_LOWLEVEL, -}; - -static void __init board_smc91x_init(void) -{ - if (omap_rev() > OMAP3430_REV_ES1_0) - board_smc91x_data.gpio_irq = 6; - else - board_smc91x_data.gpio_irq = 29; - - gpmc_smc91x_init(&board_smc91x_data); -} - -#else - -static inline void board_smc91x_init(void) -{ -} - -#endif - -static void enable_board_wakeup_source(void) -{ - /* T2 interrupt line (keypad) */ - omap_mux_init_signal("sys_nirq", - OMAP_WAKEUP_EN | OMAP_PIN_INPUT_PULLUP); -} - -static struct usbhs_phy_data phy_data[] __initdata = { - { - .port = 1, - .reset_gpio = 57, - .vcc_gpio = -EINVAL, - }, - { - .port = 2, - .reset_gpio = 61, - .vcc_gpio = -EINVAL, - }, -}; - -static struct usbhs_omap_platform_data usbhs_bdata __initdata = { - - .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, - .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, -}; - -#ifdef CONFIG_OMAP_MUX -static struct omap_board_mux board_mux[] __initdata = { - { .reg_offset = OMAP_MUX_TERMINATOR }, -}; -#else -#define board_mux NULL -#endif - -/* - * SDP3430 V2 Board CS organization - * Different from SDP3430 V1. Now 4 switches used to specify CS - * - * See also the Switch S8 settings in the comments. - */ -static char chip_sel_3430[][GPMC_CS_NUM] = { - {PDC_NOR, PDC_NAND, PDC_ONENAND, DBG_MPDB, 0, 0, 0, 0}, /* S8:1111 */ - {PDC_ONENAND, PDC_NAND, PDC_NOR, DBG_MPDB, 0, 0, 0, 0}, /* S8:1110 */ - {PDC_NAND, PDC_ONENAND, PDC_NOR, DBG_MPDB, 0, 0, 0, 0}, /* S8:1101 */ -}; - -static struct mtd_partition sdp_nor_partitions[] = { - /* bootloader (U-Boot, etc) in first sector */ - { - .name = "Bootloader-NOR", - .offset = 0, - .size = SZ_256K, - .mask_flags = MTD_WRITEABLE, /* force read-only */ - }, - /* bootloader params in the next sector */ - { - .name = "Params-NOR", - .offset = MTDPART_OFS_APPEND, - .size = SZ_256K, - .mask_flags = 0, - }, - /* kernel */ - { - .name = "Kernel-NOR", - .offset = MTDPART_OFS_APPEND, - .size = SZ_2M, - .mask_flags = 0 - }, - /* file system */ - { - .name = "Filesystem-NOR", - .offset = MTDPART_OFS_APPEND, - .size = MTDPART_SIZ_FULL, - .mask_flags = 0 - } -}; - -static struct mtd_partition sdp_onenand_partitions[] = { - { - .name = "X-Loader-OneNAND", - .offset = 0, - .size = 4 * (64 * 2048), - .mask_flags = MTD_WRITEABLE /* force read-only */ - }, - { - .name = "U-Boot-OneNAND", - .offset = MTDPART_OFS_APPEND, - .size = 2 * (64 * 2048), - .mask_flags = MTD_WRITEABLE /* force read-only */ - }, - { - .name = "U-Boot Environment-OneNAND", - .offset = MTDPART_OFS_APPEND, - .size = 1 * (64 * 2048), - }, - { - .name = "Kernel-OneNAND", - .offset = MTDPART_OFS_APPEND, - .size = 16 * (64 * 2048), - }, - { - .name = "File System-OneNAND", - .offset = MTDPART_OFS_APPEND, - .size = MTDPART_SIZ_FULL, - }, -}; - -static struct mtd_partition sdp_nand_partitions[] = { - /* All the partition sizes are listed in terms of NAND block size */ - { - .name = "X-Loader-NAND", - .offset = 0, - .size = 4 * (64 * 2048), - .mask_flags = MTD_WRITEABLE, /* force read-only */ - }, - { - .name = "U-Boot-NAND", - .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ - .size = 10 * (64 * 2048), - .mask_flags = MTD_WRITEABLE, /* force read-only */ - }, - { - .name = "Boot Env-NAND", - - .offset = MTDPART_OFS_APPEND, /* Offset = 0x1c0000 */ - .size = 6 * (64 * 2048), - }, - { - .name = "Kernel-NAND", - .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */ - .size = 40 * (64 * 2048), - }, - { - .name = "File System - NAND", - .size = MTDPART_SIZ_FULL, - .offset = MTDPART_OFS_APPEND, /* Offset = 0x780000 */ - }, -}; - -static struct flash_partitions sdp_flash_partitions[] = { - { - .parts = sdp_nor_partitions, - .nr_parts = ARRAY_SIZE(sdp_nor_partitions), - }, - { - .parts = sdp_onenand_partitions, - .nr_parts = ARRAY_SIZE(sdp_onenand_partitions), - }, - { - .parts = sdp_nand_partitions, - .nr_parts = ARRAY_SIZE(sdp_nand_partitions), - }, -}; - -static void __init omap_3430sdp_init(void) -{ - int gpio_pendown; - - omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); - omap_hsmmc_init(mmc); - omap3430_i2c_init(); - omap_display_init(&sdp3430_dss_data); - platform_device_register(&sdp3430_lcd_device); - platform_device_register(&sdp3430_tfp410_device); - platform_device_register(&sdp3430_dvi_connector_device); - platform_device_register(&sdp3430_tv_connector_device); - - if (omap_rev() > OMAP3430_REV_ES1_0) - gpio_pendown = SDP3430_TS_GPIO_IRQ_SDPV2; - else - gpio_pendown = SDP3430_TS_GPIO_IRQ_SDPV1; - omap_ads7846_init(1, gpio_pendown, 310, NULL); - omap_serial_init(); - omap_sdrc_init(hyb18m512160af6_sdrc_params, NULL); - usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb"); - usb_musb_init(NULL); - board_smc91x_init(); - board_flash_init(sdp_flash_partitions, chip_sel_3430, 0); - sdp3430_display_init(); - enable_board_wakeup_source(); - - usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data)); - usbhs_init(&usbhs_bdata); -} - -MACHINE_START(OMAP_3430SDP, "OMAP3430 3430SDP board") - /* Maintainer: Syed Khasim - Texas Instruments Inc */ - .atag_offset = 0x100, - .reserve = omap_reserve, - .map_io = omap3_map_io, - .init_early = omap3430_init_early, - .init_irq = omap3_init_irq, - .init_machine = omap_3430sdp_init, - .init_late = omap3430_init_late, - .init_time = omap3_sync32k_timer_init, - .restart = omap3xxx_restart, -MACHINE_END diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c index 212c3160de18..8168ddabaeda 100644 --- a/arch/arm/mach-omap2/board-am3517crane.c +++ b/arch/arm/mach-omap2/board-am3517crane.c @@ -24,6 +24,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> +#include <linux/omap-gpmc.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c index c6df8eec4553..91738a14ecbe 100644 --- a/arch/arm/mach-omap2/board-cm-t35.c +++ b/arch/arm/mach-omap2/board-cm-t35.c @@ -25,6 +25,7 @@ #include <linux/input/matrix_keypad.h> #include <linux/delay.h> #include <linux/gpio.h> +#include <linux/omap-gpmc.h> #include <linux/platform_data/gpio-omap.h> #include <linux/platform_data/at24.h> @@ -51,8 +52,6 @@ #include "sdram-micron-mt46h32m32lf-6.h" #include "hsmmc.h" #include "common-board-devices.h" -#include "gpmc.h" -#include "gpmc-nand.h" #define CM_T35_GPIO_PENDOWN 57 #define SB_T35_USB_HUB_RESET_GPIO 167 diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c index 8a2c1677964c..794756df8529 100644 --- a/arch/arm/mach-omap2/board-cm-t3517.c +++ b/arch/arm/mach-omap2/board-cm-t3517.c @@ -28,6 +28,7 @@ #include <linux/delay.h> #include <linux/gpio.h> #include <linux/leds.h> +#include <linux/omap-gpmc.h> #include <linux/rtc-v3020.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> @@ -41,7 +42,6 @@ #include "common.h" #include <linux/platform_data/mtd-nand-omap2.h> -#include "gpmc.h" #include "am35xx.h" @@ -50,7 +50,6 @@ #include "hsmmc.h" #include "common-board-devices.h" #include "am35xx-emac.h" -#include "gpmc-nand.h" #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) static struct gpio_led cm_t3517_leds[] = { diff --git a/arch/arm/mach-omap2/board-flash.c b/arch/arm/mach-omap2/board-flash.c index 2d245c2e641c..70b21cc279ba 100644 --- a/arch/arm/mach-omap2/board-flash.c +++ b/arch/arm/mach-omap2/board-flash.c @@ -13,6 +13,7 @@ */ #include <linux/kernel.h> +#include <linux/omap-gpmc.h> #include <linux/platform_device.h> #include <linux/mtd/physmap.h> #include <linux/io.h> @@ -23,8 +24,6 @@ #include "soc.h" #include "common.h" #include "board-flash.h" -#include "gpmc-onenand.h" -#include "gpmc-nand.h" #define REG_FPGA_REV 0x10 #define REG_FPGA_DIP_SWITCH_INPUT2 0x60 diff --git a/arch/arm/mach-omap2/board-flash.h b/arch/arm/mach-omap2/board-flash.h index 2fb5d41a9fae..ea9aaebe11e7 100644 --- a/arch/arm/mach-omap2/board-flash.h +++ b/arch/arm/mach-omap2/board-flash.h @@ -12,7 +12,6 @@ */ #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> -#include "gpmc.h" #define PDC_NOR 1 #define PDC_NAND 2 diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c index e0ad64fde20e..b6443a4e0c78 100644 --- a/arch/arm/mach-omap2/board-n8x0.c +++ b/arch/arm/mach-omap2/board-n8x0.c @@ -23,7 +23,6 @@ #include <linux/usb/musb.h> #include <linux/mmc/host.h> #include <linux/platform_data/spi-omap2-mcspi.h> -#include <linux/platform_data/mtd-onenand-omap2.h> #include <linux/platform_data/mmc-omap.h> #include <linux/mfd/menelaus.h> #include <sound/tlv320aic3x.h> @@ -34,7 +33,6 @@ #include "common.h" #include "mmc.h" #include "soc.h" -#include "gpmc-onenand.h" #include "common-board-devices.h" #define TUSB6010_ASYNC_CS 1 diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index f32201656cf3..7f1708738c30 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -24,6 +24,7 @@ #include <linux/spi/spi.h> #include <linux/regulator/machine.h> #include <linux/i2c/twl.h> +#include <linux/omap-gpmc.h> #include <linux/wl12xx.h> #include <linux/mtd/partitions.h> #include <linux/mtd/nand.h> @@ -51,7 +52,6 @@ #include "sdram-micron-mt46h32m32lf-6.h" #include "hsmmc.h" #include "common-board-devices.h" -#include "gpmc-nand.h" #define PANDORA_WIFI_IRQ_GPIO 21 #define PANDORA_WIFI_NRESET_GPIO 23 diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index 3d5040f82e90..03502abe4f2e 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -23,6 +23,7 @@ #include <linux/regulator/machine.h> #include <linux/gpio.h> #include <linux/gpio_keys.h> +#include <linux/omap-gpmc.h> #include <linux/mmc/host.h> #include <linux/power/isp1704_charger.h> #include <linux/platform_data/spi-omap2-mcspi.h> @@ -32,7 +33,6 @@ #include "common.h" #include <linux/omap-dma.h> -#include "gpmc-smc91x.h" #include "board-rx51.h" @@ -55,8 +55,6 @@ #include "omap-pm.h" #include "hsmmc.h" #include "common-board-devices.h" -#include "gpmc.h" -#include "gpmc-onenand.h" #include "soc.h" #include "omap-secure.h" @@ -1144,33 +1142,6 @@ static struct omap_onenand_platform_data board_onenand_data[] = { }; #endif -#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) - -static struct omap_smc91x_platform_data board_smc91x_data = { - .cs = 1, - .gpio_irq = 54, - .gpio_pwrdwn = 86, - .gpio_reset = 164, - .flags = GPMC_TIMINGS_SMC91C96 | IORESOURCE_IRQ_HIGHLEVEL, -}; - -static void __init board_smc91x_init(void) -{ - omap_mux_init_gpio(54, OMAP_PIN_INPUT_PULLDOWN); - omap_mux_init_gpio(86, OMAP_PIN_OUTPUT); - omap_mux_init_gpio(164, OMAP_PIN_OUTPUT); - - gpmc_smc91x_init(&board_smc91x_data); -} - -#else - -static inline void board_smc91x_init(void) -{ -} - -#endif - static struct gpio rx51_wl1251_gpios[] __initdata = { { RX51_WL1251_IRQ_GPIO, GPIOF_IN, "wl1251 irq" }, }; @@ -1301,7 +1272,6 @@ void __init rx51_peripherals_init(void) rx51_i2c_init(); regulator_has_full_constraints(); gpmc_onenand_init(board_onenand_data); - board_smc91x_init(); rx51_add_gpio_keys(); rx51_init_wl1251(); rx51_init_tsc2005(); diff --git a/arch/arm/mach-omap2/board-ti8168evm.c b/arch/arm/mach-omap2/board-ti8168evm.c deleted file mode 100644 index 6273c286e1d8..000000000000 --- a/arch/arm/mach-omap2/board-ti8168evm.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Code for TI8168/TI8148 EVM. - * - * Copyright (C) 2010 Texas Instruments, Inc. - http://www.ti.com/ - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/usb/musb.h> - -#include <asm/mach-types.h> -#include <asm/mach/arch.h> -#include <asm/mach/map.h> - -#include "common.h" - -static struct omap_musb_board_data musb_board_data = { - .set_phy_power = ti81xx_musb_phy_power, - .interface_type = MUSB_INTERFACE_ULPI, - .mode = MUSB_OTG, - .power = 500, -}; - -static void __init ti81xx_evm_init(void) -{ - omap_serial_init(); - omap_sdrc_init(NULL, NULL); - usb_musb_init(&musb_board_data); -} - -MACHINE_START(TI8168EVM, "ti8168evm") - /* Maintainer: Texas Instruments */ - .atag_offset = 0x100, - .map_io = ti81xx_map_io, - .init_early = ti81xx_init_early, - .init_irq = ti81xx_init_irq, - .init_time = omap3_sync32k_timer_init, - .init_machine = ti81xx_evm_init, - .init_late = ti81xx_init_late, - .restart = omap44xx_restart, -MACHINE_END - -MACHINE_START(TI8148EVM, "ti8148evm") - /* Maintainer: Texas Instruments */ - .atag_offset = 0x100, - .map_io = ti81xx_map_io, - .init_early = ti81xx_init_early, - .init_irq = ti81xx_init_irq, - .init_time = omap3_sync32k_timer_init, - .init_machine = ti81xx_evm_init, - .init_late = ti81xx_init_late, - .restart = omap44xx_restart, -MACHINE_END diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c index 492ef1607115..a7bc4ce81e19 100644 --- a/arch/arm/mach-omap2/devices.c +++ b/arch/arm/mach-omap2/devices.c @@ -411,3 +411,29 @@ static int __init omap2_init_devices(void) return 0; } omap_arch_initcall(omap2_init_devices); + +static int __init omap_gpmc_init(void) +{ + struct omap_hwmod *oh; + struct platform_device *pdev; + char *oh_name = "gpmc"; + + /* + * if the board boots up with a populated DT, do not + * manually add the device from this initcall + */ + if (of_have_populated_dt()) + return -ENODEV; + + oh = omap_hwmod_lookup(oh_name); + if (!oh) { + pr_err("Could not look up %s\n", oh_name); + return -ENODEV; + } + + pdev = omap_device_build("omap-gpmc", -1, oh, NULL, 0); + WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name); + + return PTR_RET(pdev); +} +omap_postcore_initcall(omap_gpmc_init); diff --git a/arch/arm/mach-omap2/gpmc-nand.c b/arch/arm/mach-omap2/gpmc-nand.c index cb7764314f17..d5951b17b736 100644 --- a/arch/arm/mach-omap2/gpmc-nand.c +++ b/arch/arm/mach-omap2/gpmc-nand.c @@ -12,14 +12,13 @@ #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/omap-gpmc.h> #include <linux/mtd/nand.h> #include <linux/platform_data/mtd-nand-omap2.h> #include <asm/mach/flash.h> -#include "gpmc.h" #include "soc.h" -#include "gpmc-nand.h" /* minimum size for IO mapping */ #define NAND_IO_SIZE 4 diff --git a/arch/arm/mach-omap2/gpmc-nand.h b/arch/arm/mach-omap2/gpmc-nand.h deleted file mode 100644 index d59e1281e851..000000000000 --- a/arch/arm/mach-omap2/gpmc-nand.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * arch/arm/mach-omap2/gpmc-nand.h - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#ifndef __OMAP2_GPMC_NAND_H -#define __OMAP2_GPMC_NAND_H - -#include "gpmc.h" -#include <linux/platform_data/mtd-nand-omap2.h> - -#if IS_ENABLED(CONFIG_MTD_NAND_OMAP2) -extern int gpmc_nand_init(struct omap_nand_platform_data *d, - struct gpmc_timings *gpmc_t); -#else -static inline int gpmc_nand_init(struct omap_nand_platform_data *d, - struct gpmc_timings *gpmc_t) -{ - return 0; -} -#endif - -#endif diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c index 8b6876c98ce1..53d197e0c1f3 100644 --- a/arch/arm/mach-omap2/gpmc-onenand.c +++ b/arch/arm/mach-omap2/gpmc-onenand.c @@ -15,14 +15,13 @@ #include <linux/platform_device.h> #include <linux/mtd/onenand_regs.h> #include <linux/io.h> +#include <linux/omap-gpmc.h> #include <linux/platform_data/mtd-onenand-omap2.h> #include <linux/err.h> #include <asm/mach/flash.h> -#include "gpmc.h" #include "soc.h" -#include "gpmc-onenand.h" #define ONENAND_IO_SIZE SZ_128K diff --git a/arch/arm/mach-omap2/gpmc-onenand.h b/arch/arm/mach-omap2/gpmc-onenand.h deleted file mode 100644 index 216f23a8b45c..000000000000 --- a/arch/arm/mach-omap2/gpmc-onenand.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * arch/arm/mach-omap2/gpmc-onenand.h - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#ifndef __OMAP2_GPMC_ONENAND_H -#define __OMAP2_GPMC_ONENAND_H - -#include <linux/platform_data/mtd-onenand-omap2.h> - -#if IS_ENABLED(CONFIG_MTD_ONENAND_OMAP2) -extern void gpmc_onenand_init(struct omap_onenand_platform_data *d); -#else -#define board_onenand_data NULL -static inline void gpmc_onenand_init(struct omap_onenand_platform_data *d) -{ -} -#endif - -#endif diff --git a/arch/arm/mach-omap2/gpmc-smc91x.c b/arch/arm/mach-omap2/gpmc-smc91x.c deleted file mode 100644 index 61a063595e66..000000000000 --- a/arch/arm/mach-omap2/gpmc-smc91x.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * linux/arch/arm/mach-omap2/gpmc-smc91x.c - * - * Copyright (C) 2009 Nokia Corporation - * Contact: Tony Lindgren - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/gpio.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/smc91x.h> - -#include "gpmc.h" -#include "gpmc-smc91x.h" - -#include "soc.h" - -static struct omap_smc91x_platform_data *gpmc_cfg; - -static struct resource gpmc_smc91x_resources[] = { - [0] = { - .flags = IORESOURCE_MEM, - }, - [1] = { - .flags = IORESOURCE_IRQ, - }, -}; - -static struct smc91x_platdata gpmc_smc91x_info = { - .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_0, - .leda = RPC_LED_100_10, - .ledb = RPC_LED_TX_RX, -}; - -static struct platform_device gpmc_smc91x_device = { - .name = "smc91x", - .id = -1, - .dev = { - .platform_data = &gpmc_smc91x_info, - }, - .num_resources = ARRAY_SIZE(gpmc_smc91x_resources), - .resource = gpmc_smc91x_resources, -}; - -static struct gpmc_settings smc91x_settings = { - .device_width = GPMC_DEVWIDTH_16BIT, -}; - -/* - * Set the gpmc timings for smc91c96. The timings are taken - * from the data sheet available at: - * http://www.smsc.com/main/catalog/lan91c96.html - * REVISIT: Level shifters can add at least to the access latency. - */ -static int smc91c96_gpmc_retime(void) -{ - struct gpmc_timings t; - struct gpmc_device_timings dev_t; - const int t3 = 10; /* Figure 12.2 read and 12.4 write */ - const int t4_r = 20; /* Figure 12.2 read */ - const int t4_w = 5; /* Figure 12.4 write */ - const int t5 = 25; /* Figure 12.2 read */ - const int t6 = 15; /* Figure 12.2 read */ - const int t7 = 5; /* Figure 12.4 write */ - const int t8 = 5; /* Figure 12.4 write */ - const int t20 = 185; /* Figure 12.2 read and 12.4 write */ - - /* - * FIXME: Calculate the address and data bus muxed timings. - * Note that at least adv_rd_off needs to be changed according - * to omap3430 TRM Figure 11-11. Are the sdp boards using the - * FPGA in between smc91x and omap as the timings are different - * from above? - */ - if (gpmc_cfg->flags & GPMC_MUX_ADD_DATA) - return 0; - - memset(&dev_t, 0, sizeof(dev_t)); - - dev_t.t_oeasu = t3 * 1000; - dev_t.t_oe = t5 * 1000; - dev_t.t_cez_r = t4_r * 1000; - dev_t.t_oez = t6 * 1000; - dev_t.t_rd_cycle = (t20 - t3) * 1000; - - dev_t.t_weasu = t3 * 1000; - dev_t.t_wpl = t7 * 1000; - dev_t.t_wph = t8 * 1000; - dev_t.t_cez_w = t4_w * 1000; - dev_t.t_wr_cycle = (t20 - t3) * 1000; - - gpmc_calc_timings(&t, &smc91x_settings, &dev_t); - - return gpmc_cs_set_timings(gpmc_cfg->cs, &t); -} - -/* - * Initialize smc91x device connected to the GPMC. Note that we - * assume that pin multiplexing is done in the board-*.c file, - * or in the bootloader. - */ -void __init gpmc_smc91x_init(struct omap_smc91x_platform_data *board_data) -{ - unsigned long cs_mem_base; - int ret; - - gpmc_cfg = board_data; - - if (gpmc_cfg->flags & GPMC_TIMINGS_SMC91C96) - gpmc_cfg->retime = smc91c96_gpmc_retime; - - if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) { - printk(KERN_ERR "Failed to request GPMC mem for smc91x\n"); - return; - } - - gpmc_smc91x_resources[0].start = cs_mem_base + 0x300; - gpmc_smc91x_resources[0].end = cs_mem_base + 0x30f; - gpmc_smc91x_resources[1].flags |= (gpmc_cfg->flags & IRQF_TRIGGER_MASK); - - if (gpmc_cfg->flags & GPMC_MUX_ADD_DATA) - smc91x_settings.mux_add_data = GPMC_MUX_AD; - if (gpmc_cfg->flags & GPMC_READ_MON) - smc91x_settings.wait_on_read = true; - if (gpmc_cfg->flags & GPMC_WRITE_MON) - smc91x_settings.wait_on_write = true; - if (gpmc_cfg->wait_pin) - smc91x_settings.wait_pin = gpmc_cfg->wait_pin; - ret = gpmc_cs_program_settings(gpmc_cfg->cs, &smc91x_settings); - if (ret < 0) - goto free1; - - if (gpmc_cfg->retime) { - ret = gpmc_cfg->retime(); - if (ret != 0) - goto free1; - } - - if (gpio_request_one(gpmc_cfg->gpio_irq, GPIOF_IN, "SMC91X irq") < 0) - goto free1; - - gpmc_smc91x_resources[1].start = gpio_to_irq(gpmc_cfg->gpio_irq); - - if (gpmc_cfg->gpio_pwrdwn) { - ret = gpio_request_one(gpmc_cfg->gpio_pwrdwn, - GPIOF_OUT_INIT_LOW, "SMC91X powerdown"); - if (ret) - goto free2; - } - - if (gpmc_cfg->gpio_reset) { - ret = gpio_request_one(gpmc_cfg->gpio_reset, - GPIOF_OUT_INIT_LOW, "SMC91X reset"); - if (ret) - goto free3; - - gpio_set_value(gpmc_cfg->gpio_reset, 1); - msleep(100); - gpio_set_value(gpmc_cfg->gpio_reset, 0); - } - - if (platform_device_register(&gpmc_smc91x_device) < 0) { - printk(KERN_ERR "Unable to register smc91x device\n"); - gpio_free(gpmc_cfg->gpio_reset); - goto free3; - } - - return; - -free3: - if (gpmc_cfg->gpio_pwrdwn) - gpio_free(gpmc_cfg->gpio_pwrdwn); -free2: - gpio_free(gpmc_cfg->gpio_irq); -free1: - gpmc_cs_free(gpmc_cfg->cs); - - printk(KERN_ERR "Could not initialize smc91x\n"); -} diff --git a/arch/arm/mach-omap2/gpmc-smc91x.h b/arch/arm/mach-omap2/gpmc-smc91x.h deleted file mode 100644 index b64fbee4d567..000000000000 --- a/arch/arm/mach-omap2/gpmc-smc91x.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * arch/arm/plat-omap/include/mach/gpmc-smc91x.h - * - * Copyright (C) 2009 Nokia Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef __ASM_ARCH_OMAP_GPMC_SMC91X_H__ - -#define GPMC_TIMINGS_SMC91C96 (1 << 4) -#define GPMC_MUX_ADD_DATA (1 << 5) /* GPMC_CONFIG1_MUXADDDATA */ -#define GPMC_READ_MON (1 << 6) /* GPMC_CONFIG1_WAIT_READ_MON */ -#define GPMC_WRITE_MON (1 << 7) /* GPMC_CONFIG1_WAIT_WRITE_MON */ - -struct omap_smc91x_platform_data { - int cs; - int gpio_irq; - int gpio_pwrdwn; - int gpio_reset; - int wait_pin; /* Optional GPMC_CONFIG1_WAITPINSELECT */ - u32 flags; - int (*retime)(void); -}; - -#if defined(CONFIG_SMC91X) || \ - defined(CONFIG_SMC91X_MODULE) - -extern void gpmc_smc91x_init(struct omap_smc91x_platform_data *d); - -#else - -#define board_smc91x_data NULL - -static inline void gpmc_smc91x_init(struct omap_smc91x_platform_data *d) -{ -} - -#endif -#endif diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c deleted file mode 100644 index 8fb5bbce102f..000000000000 --- a/arch/arm/mach-omap2/gpmc.c +++ /dev/null @@ -1,1889 +0,0 @@ -/* - * GPMC support functions - * - * Copyright (C) 2005-2006 Nokia Corporation - * - * Author: Juha Yrjola - * - * Copyright (C) 2009 Texas Instruments - * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#undef DEBUG - -#include <linux/irq.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/clk.h> -#include <linux/ioport.h> -#include <linux/spinlock.h> -#include <linux/io.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/of_mtd.h> -#include <linux/of_device.h> -#include <linux/mtd/nand.h> -#include <linux/pm_runtime.h> - -#include <linux/platform_data/mtd-nand-omap2.h> - -#include <asm/mach-types.h> - -#include "soc.h" -#include "common.h" -#include "omap_device.h" -#include "gpmc.h" -#include "gpmc-nand.h" -#include "gpmc-onenand.h" - -#define DEVICE_NAME "omap-gpmc" - -/* GPMC register offsets */ -#define GPMC_REVISION 0x00 -#define GPMC_SYSCONFIG 0x10 -#define GPMC_SYSSTATUS 0x14 -#define GPMC_IRQSTATUS 0x18 -#define GPMC_IRQENABLE 0x1c -#define GPMC_TIMEOUT_CONTROL 0x40 -#define GPMC_ERR_ADDRESS 0x44 -#define GPMC_ERR_TYPE 0x48 -#define GPMC_CONFIG 0x50 -#define GPMC_STATUS 0x54 -#define GPMC_PREFETCH_CONFIG1 0x1e0 -#define GPMC_PREFETCH_CONFIG2 0x1e4 -#define GPMC_PREFETCH_CONTROL 0x1ec -#define GPMC_PREFETCH_STATUS 0x1f0 -#define GPMC_ECC_CONFIG 0x1f4 -#define GPMC_ECC_CONTROL 0x1f8 -#define GPMC_ECC_SIZE_CONFIG 0x1fc -#define GPMC_ECC1_RESULT 0x200 -#define GPMC_ECC_BCH_RESULT_0 0x240 /* not available on OMAP2 */ -#define GPMC_ECC_BCH_RESULT_1 0x244 /* not available on OMAP2 */ -#define GPMC_ECC_BCH_RESULT_2 0x248 /* not available on OMAP2 */ -#define GPMC_ECC_BCH_RESULT_3 0x24c /* not available on OMAP2 */ -#define GPMC_ECC_BCH_RESULT_4 0x300 /* not available on OMAP2 */ -#define GPMC_ECC_BCH_RESULT_5 0x304 /* not available on OMAP2 */ -#define GPMC_ECC_BCH_RESULT_6 0x308 /* not available on OMAP2 */ - -/* GPMC ECC control settings */ -#define GPMC_ECC_CTRL_ECCCLEAR 0x100 -#define GPMC_ECC_CTRL_ECCDISABLE 0x000 -#define GPMC_ECC_CTRL_ECCREG1 0x001 -#define GPMC_ECC_CTRL_ECCREG2 0x002 -#define GPMC_ECC_CTRL_ECCREG3 0x003 -#define GPMC_ECC_CTRL_ECCREG4 0x004 -#define GPMC_ECC_CTRL_ECCREG5 0x005 -#define GPMC_ECC_CTRL_ECCREG6 0x006 -#define GPMC_ECC_CTRL_ECCREG7 0x007 -#define GPMC_ECC_CTRL_ECCREG8 0x008 -#define GPMC_ECC_CTRL_ECCREG9 0x009 - -#define GPMC_CONFIG2_CSEXTRADELAY BIT(7) -#define GPMC_CONFIG3_ADVEXTRADELAY BIT(7) -#define GPMC_CONFIG4_OEEXTRADELAY BIT(7) -#define GPMC_CONFIG4_WEEXTRADELAY BIT(23) -#define GPMC_CONFIG6_CYCLE2CYCLEDIFFCSEN BIT(6) -#define GPMC_CONFIG6_CYCLE2CYCLESAMECSEN BIT(7) - -#define GPMC_CS0_OFFSET 0x60 -#define GPMC_CS_SIZE 0x30 -#define GPMC_BCH_SIZE 0x10 - -#define GPMC_MEM_END 0x3FFFFFFF - -#define GPMC_CHUNK_SHIFT 24 /* 16 MB */ -#define GPMC_SECTION_SHIFT 28 /* 128 MB */ - -#define CS_NUM_SHIFT 24 -#define ENABLE_PREFETCH (0x1 << 7) -#define DMA_MPU_MODE 2 - -#define GPMC_REVISION_MAJOR(l) ((l >> 4) & 0xf) -#define GPMC_REVISION_MINOR(l) (l & 0xf) - -#define GPMC_HAS_WR_ACCESS 0x1 -#define GPMC_HAS_WR_DATA_MUX_BUS 0x2 -#define GPMC_HAS_MUX_AAD 0x4 - -#define GPMC_NR_WAITPINS 4 - -/* XXX: Only NAND irq has been considered,currently these are the only ones used - */ -#define GPMC_NR_IRQ 2 - -struct gpmc_client_irq { - unsigned irq; - u32 bitmask; -}; - -/* Structure to save gpmc cs context */ -struct gpmc_cs_config { - u32 config1; - u32 config2; - u32 config3; - u32 config4; - u32 config5; - u32 config6; - u32 config7; - int is_valid; -}; - -/* - * Structure to save/restore gpmc context - * to support core off on OMAP3 - */ -struct omap3_gpmc_regs { - u32 sysconfig; - u32 irqenable; - u32 timeout_ctrl; - u32 config; - u32 prefetch_config1; - u32 prefetch_config2; - u32 prefetch_control; - struct gpmc_cs_config cs_context[GPMC_CS_NUM]; -}; - -static struct gpmc_client_irq gpmc_client_irq[GPMC_NR_IRQ]; -static struct irq_chip gpmc_irq_chip; -static int gpmc_irq_start; - -static struct resource gpmc_mem_root; -static struct resource gpmc_cs_mem[GPMC_CS_NUM]; -static DEFINE_SPINLOCK(gpmc_mem_lock); -/* Define chip-selects as reserved by default until probe completes */ -static unsigned int gpmc_cs_map = ((1 << GPMC_CS_NUM) - 1); -static unsigned int gpmc_cs_num = GPMC_CS_NUM; -static unsigned int gpmc_nr_waitpins; -static struct device *gpmc_dev; -static int gpmc_irq; -static resource_size_t phys_base, mem_size; -static unsigned gpmc_capability; -static void __iomem *gpmc_base; - -static struct clk *gpmc_l3_clk; - -static irqreturn_t gpmc_handle_irq(int irq, void *dev); - -static void gpmc_write_reg(int idx, u32 val) -{ - writel_relaxed(val, gpmc_base + idx); -} - -static u32 gpmc_read_reg(int idx) -{ - return readl_relaxed(gpmc_base + idx); -} - -void gpmc_cs_write_reg(int cs, int idx, u32 val) -{ - void __iomem *reg_addr; - - reg_addr = gpmc_base + GPMC_CS0_OFFSET + (cs * GPMC_CS_SIZE) + idx; - writel_relaxed(val, reg_addr); -} - -static u32 gpmc_cs_read_reg(int cs, int idx) -{ - void __iomem *reg_addr; - - reg_addr = gpmc_base + GPMC_CS0_OFFSET + (cs * GPMC_CS_SIZE) + idx; - return readl_relaxed(reg_addr); -} - -/* TODO: Add support for gpmc_fck to clock framework and use it */ -static unsigned long gpmc_get_fclk_period(void) -{ - unsigned long rate = clk_get_rate(gpmc_l3_clk); - - if (rate == 0) { - printk(KERN_WARNING "gpmc_l3_clk not enabled\n"); - return 0; - } - - rate /= 1000; - rate = 1000000000 / rate; /* In picoseconds */ - - return rate; -} - -static unsigned int gpmc_ns_to_ticks(unsigned int time_ns) -{ - unsigned long tick_ps; - - /* Calculate in picosecs to yield more exact results */ - tick_ps = gpmc_get_fclk_period(); - - return (time_ns * 1000 + tick_ps - 1) / tick_ps; -} - -static unsigned int gpmc_ps_to_ticks(unsigned int time_ps) -{ - unsigned long tick_ps; - - /* Calculate in picosecs to yield more exact results */ - tick_ps = gpmc_get_fclk_period(); - - return (time_ps + tick_ps - 1) / tick_ps; -} - -unsigned int gpmc_ticks_to_ns(unsigned int ticks) -{ - return ticks * gpmc_get_fclk_period() / 1000; -} - -static unsigned int gpmc_ticks_to_ps(unsigned int ticks) -{ - return ticks * gpmc_get_fclk_period(); -} - -static unsigned int gpmc_round_ps_to_ticks(unsigned int time_ps) -{ - unsigned long ticks = gpmc_ps_to_ticks(time_ps); - - return ticks * gpmc_get_fclk_period(); -} - -static inline void gpmc_cs_modify_reg(int cs, int reg, u32 mask, bool value) -{ - u32 l; - - l = gpmc_cs_read_reg(cs, reg); - if (value) - l |= mask; - else - l &= ~mask; - gpmc_cs_write_reg(cs, reg, l); -} - -static void gpmc_cs_bool_timings(int cs, const struct gpmc_bool_timings *p) -{ - gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG1, - GPMC_CONFIG1_TIME_PARA_GRAN, - p->time_para_granularity); - gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG2, - GPMC_CONFIG2_CSEXTRADELAY, p->cs_extra_delay); - gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG3, - GPMC_CONFIG3_ADVEXTRADELAY, p->adv_extra_delay); - gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG4, - GPMC_CONFIG4_OEEXTRADELAY, p->oe_extra_delay); - gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG4, - GPMC_CONFIG4_OEEXTRADELAY, p->we_extra_delay); - gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG6, - GPMC_CONFIG6_CYCLE2CYCLESAMECSEN, - p->cycle2cyclesamecsen); - gpmc_cs_modify_reg(cs, GPMC_CS_CONFIG6, - GPMC_CONFIG6_CYCLE2CYCLEDIFFCSEN, - p->cycle2cyclediffcsen); -} - -#ifdef DEBUG -static int set_gpmc_timing_reg(int cs, int reg, int st_bit, int end_bit, - int time, const char *name) -#else -static int set_gpmc_timing_reg(int cs, int reg, int st_bit, int end_bit, - int time) -#endif -{ - u32 l; - int ticks, mask, nr_bits; - - if (time == 0) - ticks = 0; - else - ticks = gpmc_ns_to_ticks(time); - nr_bits = end_bit - st_bit + 1; - if (ticks >= 1 << nr_bits) { -#ifdef DEBUG - printk(KERN_INFO "GPMC CS%d: %-10s* %3d ns, %3d ticks >= %d\n", - cs, name, time, ticks, 1 << nr_bits); -#endif - return -1; - } - - mask = (1 << nr_bits) - 1; - l = gpmc_cs_read_reg(cs, reg); -#ifdef DEBUG - printk(KERN_INFO - "GPMC CS%d: %-10s: %3d ticks, %3lu ns (was %3i ticks) %3d ns\n", - cs, name, ticks, gpmc_get_fclk_period() * ticks / 1000, - (l >> st_bit) & mask, time); -#endif - l &= ~(mask << st_bit); - l |= ticks << st_bit; - gpmc_cs_write_reg(cs, reg, l); - - return 0; -} - -#ifdef DEBUG -#define GPMC_SET_ONE(reg, st, end, field) \ - if (set_gpmc_timing_reg(cs, (reg), (st), (end), \ - t->field, #field) < 0) \ - return -1 -#else -#define GPMC_SET_ONE(reg, st, end, field) \ - if (set_gpmc_timing_reg(cs, (reg), (st), (end), t->field) < 0) \ - return -1 -#endif - -int gpmc_calc_divider(unsigned int sync_clk) -{ - int div; - u32 l; - - l = sync_clk + (gpmc_get_fclk_period() - 1); - div = l / gpmc_get_fclk_period(); - if (div > 4) - return -1; - if (div <= 0) - div = 1; - - return div; -} - -int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t) -{ - int div; - u32 l; - - div = gpmc_calc_divider(t->sync_clk); - if (div < 0) - return div; - - GPMC_SET_ONE(GPMC_CS_CONFIG2, 0, 3, cs_on); - GPMC_SET_ONE(GPMC_CS_CONFIG2, 8, 12, cs_rd_off); - GPMC_SET_ONE(GPMC_CS_CONFIG2, 16, 20, cs_wr_off); - - GPMC_SET_ONE(GPMC_CS_CONFIG3, 0, 3, adv_on); - GPMC_SET_ONE(GPMC_CS_CONFIG3, 8, 12, adv_rd_off); - GPMC_SET_ONE(GPMC_CS_CONFIG3, 16, 20, adv_wr_off); - - GPMC_SET_ONE(GPMC_CS_CONFIG4, 0, 3, oe_on); - GPMC_SET_ONE(GPMC_CS_CONFIG4, 8, 12, oe_off); - GPMC_SET_ONE(GPMC_CS_CONFIG4, 16, 19, we_on); - GPMC_SET_ONE(GPMC_CS_CONFIG4, 24, 28, we_off); - - GPMC_SET_ONE(GPMC_CS_CONFIG5, 0, 4, rd_cycle); - GPMC_SET_ONE(GPMC_CS_CONFIG5, 8, 12, wr_cycle); - GPMC_SET_ONE(GPMC_CS_CONFIG5, 16, 20, access); - - GPMC_SET_ONE(GPMC_CS_CONFIG5, 24, 27, page_burst_access); - - GPMC_SET_ONE(GPMC_CS_CONFIG6, 0, 3, bus_turnaround); - GPMC_SET_ONE(GPMC_CS_CONFIG6, 8, 11, cycle2cycle_delay); - - GPMC_SET_ONE(GPMC_CS_CONFIG1, 18, 19, wait_monitoring); - GPMC_SET_ONE(GPMC_CS_CONFIG1, 25, 26, clk_activation); - - if (gpmc_capability & GPMC_HAS_WR_DATA_MUX_BUS) - GPMC_SET_ONE(GPMC_CS_CONFIG6, 16, 19, wr_data_mux_bus); - if (gpmc_capability & GPMC_HAS_WR_ACCESS) - GPMC_SET_ONE(GPMC_CS_CONFIG6, 24, 28, wr_access); - - /* caller is expected to have initialized CONFIG1 to cover - * at least sync vs async - */ - l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1); - if (l & (GPMC_CONFIG1_READTYPE_SYNC | GPMC_CONFIG1_WRITETYPE_SYNC)) { -#ifdef DEBUG - printk(KERN_INFO "GPMC CS%d CLK period is %lu ns (div %d)\n", - cs, (div * gpmc_get_fclk_period()) / 1000, div); -#endif - l &= ~0x03; - l |= (div - 1); - gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, l); - } - - gpmc_cs_bool_timings(cs, &t->bool_timings); - - return 0; -} - -static int gpmc_cs_enable_mem(int cs, u32 base, u32 size) -{ - u32 l; - u32 mask; - - /* - * Ensure that base address is aligned on a - * boundary equal to or greater than size. - */ - if (base & (size - 1)) - return -EINVAL; - - mask = (1 << GPMC_SECTION_SHIFT) - size; - l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7); - l &= ~0x3f; - l = (base >> GPMC_CHUNK_SHIFT) & 0x3f; - l &= ~(0x0f << 8); - l |= ((mask >> GPMC_CHUNK_SHIFT) & 0x0f) << 8; - l |= GPMC_CONFIG7_CSVALID; - gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, l); - - return 0; -} - -static void gpmc_cs_disable_mem(int cs) -{ - u32 l; - - l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7); - l &= ~GPMC_CONFIG7_CSVALID; - gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, l); -} - -static void gpmc_cs_get_memconf(int cs, u32 *base, u32 *size) -{ - u32 l; - u32 mask; - - l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7); - *base = (l & 0x3f) << GPMC_CHUNK_SHIFT; - mask = (l >> 8) & 0x0f; - *size = (1 << GPMC_SECTION_SHIFT) - (mask << GPMC_CHUNK_SHIFT); -} - -static int gpmc_cs_mem_enabled(int cs) -{ - u32 l; - - l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7); - return l & GPMC_CONFIG7_CSVALID; -} - -static void gpmc_cs_set_reserved(int cs, int reserved) -{ - gpmc_cs_map &= ~(1 << cs); - gpmc_cs_map |= (reserved ? 1 : 0) << cs; -} - -static bool gpmc_cs_reserved(int cs) -{ - return gpmc_cs_map & (1 << cs); -} - -static unsigned long gpmc_mem_align(unsigned long size) -{ - int order; - - size = (size - 1) >> (GPMC_CHUNK_SHIFT - 1); - order = GPMC_CHUNK_SHIFT - 1; - do { - size >>= 1; - order++; - } while (size); - size = 1 << order; - return size; -} - -static int gpmc_cs_insert_mem(int cs, unsigned long base, unsigned long size) -{ - struct resource *res = &gpmc_cs_mem[cs]; - int r; - - size = gpmc_mem_align(size); - spin_lock(&gpmc_mem_lock); - res->start = base; - res->end = base + size - 1; - r = request_resource(&gpmc_mem_root, res); - spin_unlock(&gpmc_mem_lock); - - return r; -} - -static int gpmc_cs_delete_mem(int cs) -{ - struct resource *res = &gpmc_cs_mem[cs]; - int r; - - spin_lock(&gpmc_mem_lock); - r = release_resource(res); - res->start = 0; - res->end = 0; - spin_unlock(&gpmc_mem_lock); - - return r; -} - -/** - * gpmc_cs_remap - remaps a chip-select physical base address - * @cs: chip-select to remap - * @base: physical base address to re-map chip-select to - * - * Re-maps a chip-select to a new physical base address specified by - * "base". Returns 0 on success and appropriate negative error code - * on failure. - */ -static int gpmc_cs_remap(int cs, u32 base) -{ - int ret; - u32 old_base, size; - - if (cs > gpmc_cs_num) { - pr_err("%s: requested chip-select is disabled\n", __func__); - return -ENODEV; - } - - /* - * Make sure we ignore any device offsets from the GPMC partition - * allocated for the chip select and that the new base confirms - * to the GPMC 16MB minimum granularity. - */ - base &= ~(SZ_16M - 1); - - gpmc_cs_get_memconf(cs, &old_base, &size); - if (base == old_base) - return 0; - gpmc_cs_disable_mem(cs); - ret = gpmc_cs_delete_mem(cs); - if (ret < 0) - return ret; - ret = gpmc_cs_insert_mem(cs, base, size); - if (ret < 0) - return ret; - ret = gpmc_cs_enable_mem(cs, base, size); - if (ret < 0) - return ret; - - return 0; -} - -int gpmc_cs_request(int cs, unsigned long size, unsigned long *base) -{ - struct resource *res = &gpmc_cs_mem[cs]; - int r = -1; - - if (cs > gpmc_cs_num) { - pr_err("%s: requested chip-select is disabled\n", __func__); - return -ENODEV; - } - size = gpmc_mem_align(size); - if (size > (1 << GPMC_SECTION_SHIFT)) - return -ENOMEM; - - spin_lock(&gpmc_mem_lock); - if (gpmc_cs_reserved(cs)) { - r = -EBUSY; - goto out; - } - if (gpmc_cs_mem_enabled(cs)) - r = adjust_resource(res, res->start & ~(size - 1), size); - if (r < 0) - r = allocate_resource(&gpmc_mem_root, res, size, 0, ~0, - size, NULL, NULL); - if (r < 0) - goto out; - - r = gpmc_cs_enable_mem(cs, res->start, resource_size(res)); - if (r < 0) { - release_resource(res); - goto out; - } - - *base = res->start; - gpmc_cs_set_reserved(cs, 1); -out: - spin_unlock(&gpmc_mem_lock); - return r; -} -EXPORT_SYMBOL(gpmc_cs_request); - -void gpmc_cs_free(int cs) -{ - struct resource *res = &gpmc_cs_mem[cs]; - - spin_lock(&gpmc_mem_lock); - if (cs >= gpmc_cs_num || cs < 0 || !gpmc_cs_reserved(cs)) { - printk(KERN_ERR "Trying to free non-reserved GPMC CS%d\n", cs); - BUG(); - spin_unlock(&gpmc_mem_lock); - return; - } - gpmc_cs_disable_mem(cs); - if (res->flags) - release_resource(res); - gpmc_cs_set_reserved(cs, 0); - spin_unlock(&gpmc_mem_lock); -} -EXPORT_SYMBOL(gpmc_cs_free); - -/** - * gpmc_configure - write request to configure gpmc - * @cmd: command type - * @wval: value to write - * @return status of the operation - */ -int gpmc_configure(int cmd, int wval) -{ - u32 regval; - - switch (cmd) { - case GPMC_ENABLE_IRQ: - gpmc_write_reg(GPMC_IRQENABLE, wval); - break; - - case GPMC_SET_IRQ_STATUS: - gpmc_write_reg(GPMC_IRQSTATUS, wval); - break; - - case GPMC_CONFIG_WP: - regval = gpmc_read_reg(GPMC_CONFIG); - if (wval) - regval &= ~GPMC_CONFIG_WRITEPROTECT; /* WP is ON */ - else - regval |= GPMC_CONFIG_WRITEPROTECT; /* WP is OFF */ - gpmc_write_reg(GPMC_CONFIG, regval); - break; - - default: - pr_err("%s: command not supported\n", __func__); - return -EINVAL; - } - - return 0; -} -EXPORT_SYMBOL(gpmc_configure); - -void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs) -{ - int i; - - reg->gpmc_status = gpmc_base + GPMC_STATUS; - reg->gpmc_nand_command = gpmc_base + GPMC_CS0_OFFSET + - GPMC_CS_NAND_COMMAND + GPMC_CS_SIZE * cs; - reg->gpmc_nand_address = gpmc_base + GPMC_CS0_OFFSET + - GPMC_CS_NAND_ADDRESS + GPMC_CS_SIZE * cs; - reg->gpmc_nand_data = gpmc_base + GPMC_CS0_OFFSET + - GPMC_CS_NAND_DATA + GPMC_CS_SIZE * cs; - reg->gpmc_prefetch_config1 = gpmc_base + GPMC_PREFETCH_CONFIG1; - reg->gpmc_prefetch_config2 = gpmc_base + GPMC_PREFETCH_CONFIG2; - reg->gpmc_prefetch_control = gpmc_base + GPMC_PREFETCH_CONTROL; - reg->gpmc_prefetch_status = gpmc_base + GPMC_PREFETCH_STATUS; - reg->gpmc_ecc_config = gpmc_base + GPMC_ECC_CONFIG; - reg->gpmc_ecc_control = gpmc_base + GPMC_ECC_CONTROL; - reg->gpmc_ecc_size_config = gpmc_base + GPMC_ECC_SIZE_CONFIG; - reg->gpmc_ecc1_result = gpmc_base + GPMC_ECC1_RESULT; - - for (i = 0; i < GPMC_BCH_NUM_REMAINDER; i++) { - reg->gpmc_bch_result0[i] = gpmc_base + GPMC_ECC_BCH_RESULT_0 + - GPMC_BCH_SIZE * i; - reg->gpmc_bch_result1[i] = gpmc_base + GPMC_ECC_BCH_RESULT_1 + - GPMC_BCH_SIZE * i; - reg->gpmc_bch_result2[i] = gpmc_base + GPMC_ECC_BCH_RESULT_2 + - GPMC_BCH_SIZE * i; - reg->gpmc_bch_result3[i] = gpmc_base + GPMC_ECC_BCH_RESULT_3 + - GPMC_BCH_SIZE * i; - reg->gpmc_bch_result4[i] = gpmc_base + GPMC_ECC_BCH_RESULT_4 + - i * GPMC_BCH_SIZE; - reg->gpmc_bch_result5[i] = gpmc_base + GPMC_ECC_BCH_RESULT_5 + - i * GPMC_BCH_SIZE; - reg->gpmc_bch_result6[i] = gpmc_base + GPMC_ECC_BCH_RESULT_6 + - i * GPMC_BCH_SIZE; - } -} - -int gpmc_get_client_irq(unsigned irq_config) -{ - int i; - - if (hweight32(irq_config) > 1) - return 0; - - for (i = 0; i < GPMC_NR_IRQ; i++) - if (gpmc_client_irq[i].bitmask & irq_config) - return gpmc_client_irq[i].irq; - - return 0; -} - -static int gpmc_irq_endis(unsigned irq, bool endis) -{ - int i; - u32 regval; - - for (i = 0; i < GPMC_NR_IRQ; i++) - if (irq == gpmc_client_irq[i].irq) { - regval = gpmc_read_reg(GPMC_IRQENABLE); - if (endis) - regval |= gpmc_client_irq[i].bitmask; - else - regval &= ~gpmc_client_irq[i].bitmask; - gpmc_write_reg(GPMC_IRQENABLE, regval); - break; - } - - return 0; -} - -static void gpmc_irq_disable(struct irq_data *p) -{ - gpmc_irq_endis(p->irq, false); -} - -static void gpmc_irq_enable(struct irq_data *p) -{ - gpmc_irq_endis(p->irq, true); -} - -static void gpmc_irq_noop(struct irq_data *data) { } - -static unsigned int gpmc_irq_noop_ret(struct irq_data *data) { return 0; } - -static int gpmc_setup_irq(void) -{ - int i; - u32 regval; - - if (!gpmc_irq) - return -EINVAL; - - gpmc_irq_start = irq_alloc_descs(-1, 0, GPMC_NR_IRQ, 0); - if (gpmc_irq_start < 0) { - pr_err("irq_alloc_descs failed\n"); - return gpmc_irq_start; - } - - gpmc_irq_chip.name = "gpmc"; - gpmc_irq_chip.irq_startup = gpmc_irq_noop_ret; - gpmc_irq_chip.irq_enable = gpmc_irq_enable; - gpmc_irq_chip.irq_disable = gpmc_irq_disable; - gpmc_irq_chip.irq_shutdown = gpmc_irq_noop; - gpmc_irq_chip.irq_ack = gpmc_irq_noop; - gpmc_irq_chip.irq_mask = gpmc_irq_noop; - gpmc_irq_chip.irq_unmask = gpmc_irq_noop; - - gpmc_client_irq[0].bitmask = GPMC_IRQ_FIFOEVENTENABLE; - gpmc_client_irq[1].bitmask = GPMC_IRQ_COUNT_EVENT; - - for (i = 0; i < GPMC_NR_IRQ; i++) { - gpmc_client_irq[i].irq = gpmc_irq_start + i; - irq_set_chip_and_handler(gpmc_client_irq[i].irq, - &gpmc_irq_chip, handle_simple_irq); - set_irq_flags(gpmc_client_irq[i].irq, - IRQF_VALID | IRQF_NOAUTOEN); - } - - /* Disable interrupts */ - gpmc_write_reg(GPMC_IRQENABLE, 0); - - /* clear interrupts */ - regval = gpmc_read_reg(GPMC_IRQSTATUS); - gpmc_write_reg(GPMC_IRQSTATUS, regval); - - return request_irq(gpmc_irq, gpmc_handle_irq, 0, "gpmc", NULL); -} - -static int gpmc_free_irq(void) -{ - int i; - - if (gpmc_irq) - free_irq(gpmc_irq, NULL); - - for (i = 0; i < GPMC_NR_IRQ; i++) { - irq_set_handler(gpmc_client_irq[i].irq, NULL); - irq_set_chip(gpmc_client_irq[i].irq, &no_irq_chip); - irq_modify_status(gpmc_client_irq[i].irq, 0, 0); - } - - irq_free_descs(gpmc_irq_start, GPMC_NR_IRQ); - - return 0; -} - -static void gpmc_mem_exit(void) -{ - int cs; - - for (cs = 0; cs < gpmc_cs_num; cs++) { - if (!gpmc_cs_mem_enabled(cs)) - continue; - gpmc_cs_delete_mem(cs); - } - -} - -static void gpmc_mem_init(void) -{ - int cs; - - /* - * The first 1MB of GPMC address space is typically mapped to - * the internal ROM. Never allocate the first page, to - * facilitate bug detection; even if we didn't boot from ROM. - */ - gpmc_mem_root.start = SZ_1M; - gpmc_mem_root.end = GPMC_MEM_END; - - /* Reserve all regions that has been set up by bootloader */ - for (cs = 0; cs < gpmc_cs_num; cs++) { - u32 base, size; - - if (!gpmc_cs_mem_enabled(cs)) - continue; - gpmc_cs_get_memconf(cs, &base, &size); - if (gpmc_cs_insert_mem(cs, base, size)) { - pr_warn("%s: disabling cs %d mapped at 0x%x-0x%x\n", - __func__, cs, base, base + size); - gpmc_cs_disable_mem(cs); - } - } -} - -static u32 gpmc_round_ps_to_sync_clk(u32 time_ps, u32 sync_clk) -{ - u32 temp; - int div; - - div = gpmc_calc_divider(sync_clk); - temp = gpmc_ps_to_ticks(time_ps); - temp = (temp + div - 1) / div; - return gpmc_ticks_to_ps(temp * div); -} - -/* XXX: can the cycles be avoided ? */ -static int gpmc_calc_sync_read_timings(struct gpmc_timings *gpmc_t, - struct gpmc_device_timings *dev_t, - bool mux) -{ - u32 temp; - - /* adv_rd_off */ - temp = dev_t->t_avdp_r; - /* XXX: mux check required ? */ - if (mux) { - /* XXX: t_avdp not to be required for sync, only added for tusb - * this indirectly necessitates requirement of t_avdp_r and - * t_avdp_w instead of having a single t_avdp - */ - temp = max_t(u32, temp, gpmc_t->clk_activation + dev_t->t_avdh); - temp = max_t(u32, gpmc_t->adv_on + gpmc_ticks_to_ps(1), temp); - } - gpmc_t->adv_rd_off = gpmc_round_ps_to_ticks(temp); - - /* oe_on */ - temp = dev_t->t_oeasu; /* XXX: remove this ? */ - if (mux) { - temp = max_t(u32, temp, gpmc_t->clk_activation + dev_t->t_ach); - temp = max_t(u32, temp, gpmc_t->adv_rd_off + - gpmc_ticks_to_ps(dev_t->cyc_aavdh_oe)); - } - gpmc_t->oe_on = gpmc_round_ps_to_ticks(temp); - - /* access */ - /* XXX: any scope for improvement ?, by combining oe_on - * and clk_activation, need to check whether - * access = clk_activation + round to sync clk ? - */ - temp = max_t(u32, dev_t->t_iaa, dev_t->cyc_iaa * gpmc_t->sync_clk); - temp += gpmc_t->clk_activation; - if (dev_t->cyc_oe) - temp = max_t(u32, temp, gpmc_t->oe_on + - gpmc_ticks_to_ps(dev_t->cyc_oe)); - gpmc_t->access = gpmc_round_ps_to_ticks(temp); - - gpmc_t->oe_off = gpmc_t->access + gpmc_ticks_to_ps(1); - gpmc_t->cs_rd_off = gpmc_t->oe_off; - - /* rd_cycle */ - temp = max_t(u32, dev_t->t_cez_r, dev_t->t_oez); - temp = gpmc_round_ps_to_sync_clk(temp, gpmc_t->sync_clk) + - gpmc_t->access; - /* XXX: barter t_ce_rdyz with t_cez_r ? */ - if (dev_t->t_ce_rdyz) - temp = max_t(u32, temp, gpmc_t->cs_rd_off + dev_t->t_ce_rdyz); - gpmc_t->rd_cycle = gpmc_round_ps_to_ticks(temp); - - return 0; -} - -static int gpmc_calc_sync_write_timings(struct gpmc_timings *gpmc_t, - struct gpmc_device_timings *dev_t, - bool mux) -{ - u32 temp; - - /* adv_wr_off */ - temp = dev_t->t_avdp_w; - if (mux) { - temp = max_t(u32, temp, - gpmc_t->clk_activation + dev_t->t_avdh); - temp = max_t(u32, gpmc_t->adv_on + gpmc_ticks_to_ps(1), temp); - } - gpmc_t->adv_wr_off = gpmc_round_ps_to_ticks(temp); - - /* wr_data_mux_bus */ - temp = max_t(u32, dev_t->t_weasu, - gpmc_t->clk_activation + dev_t->t_rdyo); - /* XXX: shouldn't mux be kept as a whole for wr_data_mux_bus ?, - * and in that case remember to handle we_on properly - */ - if (mux) { - temp = max_t(u32, temp, - gpmc_t->adv_wr_off + dev_t->t_aavdh); - temp = max_t(u32, temp, gpmc_t->adv_wr_off + - gpmc_ticks_to_ps(dev_t->cyc_aavdh_we)); - } - gpmc_t->wr_data_mux_bus = gpmc_round_ps_to_ticks(temp); - - /* we_on */ - if (gpmc_capability & GPMC_HAS_WR_DATA_MUX_BUS) - gpmc_t->we_on = gpmc_round_ps_to_ticks(dev_t->t_weasu); - else - gpmc_t->we_on = gpmc_t->wr_data_mux_bus; - - /* wr_access */ - /* XXX: gpmc_capability check reqd ? , even if not, will not harm */ - gpmc_t->wr_access = gpmc_t->access; - - /* we_off */ - temp = gpmc_t->we_on + dev_t->t_wpl; - temp = max_t(u32, temp, - gpmc_t->wr_access + gpmc_ticks_to_ps(1)); - temp = max_t(u32, temp, - gpmc_t->we_on + gpmc_ticks_to_ps(dev_t->cyc_wpl)); - gpmc_t->we_off = gpmc_round_ps_to_ticks(temp); - - gpmc_t->cs_wr_off = gpmc_round_ps_to_ticks(gpmc_t->we_off + - dev_t->t_wph); - - /* wr_cycle */ - temp = gpmc_round_ps_to_sync_clk(dev_t->t_cez_w, gpmc_t->sync_clk); - temp += gpmc_t->wr_access; - /* XXX: barter t_ce_rdyz with t_cez_w ? */ - if (dev_t->t_ce_rdyz) - temp = max_t(u32, temp, - gpmc_t->cs_wr_off + dev_t->t_ce_rdyz); - gpmc_t->wr_cycle = gpmc_round_ps_to_ticks(temp); - - return 0; -} - -static int gpmc_calc_async_read_timings(struct gpmc_timings *gpmc_t, - struct gpmc_device_timings *dev_t, - bool mux) -{ - u32 temp; - - /* adv_rd_off */ - temp = dev_t->t_avdp_r; - if (mux) - temp = max_t(u32, gpmc_t->adv_on + gpmc_ticks_to_ps(1), temp); - gpmc_t->adv_rd_off = gpmc_round_ps_to_ticks(temp); - - /* oe_on */ - temp = dev_t->t_oeasu; - if (mux) - temp = max_t(u32, temp, - gpmc_t->adv_rd_off + dev_t->t_aavdh); - gpmc_t->oe_on = gpmc_round_ps_to_ticks(temp); - - /* access */ - temp = max_t(u32, dev_t->t_iaa, /* XXX: remove t_iaa in async ? */ - gpmc_t->oe_on + dev_t->t_oe); - temp = max_t(u32, temp, - gpmc_t->cs_on + dev_t->t_ce); - temp = max_t(u32, temp, - gpmc_t->adv_on + dev_t->t_aa); - gpmc_t->access = gpmc_round_ps_to_ticks(temp); - - gpmc_t->oe_off = gpmc_t->access + gpmc_ticks_to_ps(1); - gpmc_t->cs_rd_off = gpmc_t->oe_off; - - /* rd_cycle */ - temp = max_t(u32, dev_t->t_rd_cycle, - gpmc_t->cs_rd_off + dev_t->t_cez_r); - temp = max_t(u32, temp, gpmc_t->oe_off + dev_t->t_oez); - gpmc_t->rd_cycle = gpmc_round_ps_to_ticks(temp); - - return 0; -} - -static int gpmc_calc_async_write_timings(struct gpmc_timings *gpmc_t, - struct gpmc_device_timings *dev_t, - bool mux) -{ - u32 temp; - - /* adv_wr_off */ - temp = dev_t->t_avdp_w; - if (mux) - temp = max_t(u32, gpmc_t->adv_on + gpmc_ticks_to_ps(1), temp); - gpmc_t->adv_wr_off = gpmc_round_ps_to_ticks(temp); - - /* wr_data_mux_bus */ - temp = dev_t->t_weasu; - if (mux) { - temp = max_t(u32, temp, gpmc_t->adv_wr_off + dev_t->t_aavdh); - temp = max_t(u32, temp, gpmc_t->adv_wr_off + - gpmc_ticks_to_ps(dev_t->cyc_aavdh_we)); - } - gpmc_t->wr_data_mux_bus = gpmc_round_ps_to_ticks(temp); - - /* we_on */ - if (gpmc_capability & GPMC_HAS_WR_DATA_MUX_BUS) - gpmc_t->we_on = gpmc_round_ps_to_ticks(dev_t->t_weasu); - else - gpmc_t->we_on = gpmc_t->wr_data_mux_bus; - - /* we_off */ - temp = gpmc_t->we_on + dev_t->t_wpl; - gpmc_t->we_off = gpmc_round_ps_to_ticks(temp); - - gpmc_t->cs_wr_off = gpmc_round_ps_to_ticks(gpmc_t->we_off + - dev_t->t_wph); - - /* wr_cycle */ - temp = max_t(u32, dev_t->t_wr_cycle, - gpmc_t->cs_wr_off + dev_t->t_cez_w); - gpmc_t->wr_cycle = gpmc_round_ps_to_ticks(temp); - - return 0; -} - -static int gpmc_calc_sync_common_timings(struct gpmc_timings *gpmc_t, - struct gpmc_device_timings *dev_t) -{ - u32 temp; - - gpmc_t->sync_clk = gpmc_calc_divider(dev_t->clk) * - gpmc_get_fclk_period(); - - gpmc_t->page_burst_access = gpmc_round_ps_to_sync_clk( - dev_t->t_bacc, - gpmc_t->sync_clk); - - temp = max_t(u32, dev_t->t_ces, dev_t->t_avds); - gpmc_t->clk_activation = gpmc_round_ps_to_ticks(temp); - - if (gpmc_calc_divider(gpmc_t->sync_clk) != 1) - return 0; - - if (dev_t->ce_xdelay) - gpmc_t->bool_timings.cs_extra_delay = true; - if (dev_t->avd_xdelay) - gpmc_t->bool_timings.adv_extra_delay = true; - if (dev_t->oe_xdelay) - gpmc_t->bool_timings.oe_extra_delay = true; - if (dev_t->we_xdelay) - gpmc_t->bool_timings.we_extra_delay = true; - - return 0; -} - -static int gpmc_calc_common_timings(struct gpmc_timings *gpmc_t, - struct gpmc_device_timings *dev_t, - bool sync) -{ - u32 temp; - - /* cs_on */ - gpmc_t->cs_on = gpmc_round_ps_to_ticks(dev_t->t_ceasu); - - /* adv_on */ - temp = dev_t->t_avdasu; - if (dev_t->t_ce_avd) - temp = max_t(u32, temp, - gpmc_t->cs_on + dev_t->t_ce_avd); - gpmc_t->adv_on = gpmc_round_ps_to_ticks(temp); - - if (sync) - gpmc_calc_sync_common_timings(gpmc_t, dev_t); - - return 0; -} - -/* TODO: remove this function once all peripherals are confirmed to - * work with generic timing. Simultaneously gpmc_cs_set_timings() - * has to be modified to handle timings in ps instead of ns -*/ -static void gpmc_convert_ps_to_ns(struct gpmc_timings *t) -{ - t->cs_on /= 1000; - t->cs_rd_off /= 1000; - t->cs_wr_off /= 1000; - t->adv_on /= 1000; - t->adv_rd_off /= 1000; - t->adv_wr_off /= 1000; - t->we_on /= 1000; - t->we_off /= 1000; - t->oe_on /= 1000; - t->oe_off /= 1000; - t->page_burst_access /= 1000; - t->access /= 1000; - t->rd_cycle /= 1000; - t->wr_cycle /= 1000; - t->bus_turnaround /= 1000; - t->cycle2cycle_delay /= 1000; - t->wait_monitoring /= 1000; - t->clk_activation /= 1000; - t->wr_access /= 1000; - t->wr_data_mux_bus /= 1000; -} - -int gpmc_calc_timings(struct gpmc_timings *gpmc_t, - struct gpmc_settings *gpmc_s, - struct gpmc_device_timings *dev_t) -{ - bool mux = false, sync = false; - - if (gpmc_s) { - mux = gpmc_s->mux_add_data ? true : false; - sync = (gpmc_s->sync_read || gpmc_s->sync_write); - } - - memset(gpmc_t, 0, sizeof(*gpmc_t)); - - gpmc_calc_common_timings(gpmc_t, dev_t, sync); - - if (gpmc_s && gpmc_s->sync_read) - gpmc_calc_sync_read_timings(gpmc_t, dev_t, mux); - else - gpmc_calc_async_read_timings(gpmc_t, dev_t, mux); - - if (gpmc_s && gpmc_s->sync_write) - gpmc_calc_sync_write_timings(gpmc_t, dev_t, mux); - else - gpmc_calc_async_write_timings(gpmc_t, dev_t, mux); - - /* TODO: remove, see function definition */ - gpmc_convert_ps_to_ns(gpmc_t); - - return 0; -} - -/** - * gpmc_cs_program_settings - programs non-timing related settings - * @cs: GPMC chip-select to program - * @p: pointer to GPMC settings structure - * - * Programs non-timing related settings for a GPMC chip-select, such as - * bus-width, burst configuration, etc. Function should be called once - * for each chip-select that is being used and must be called before - * calling gpmc_cs_set_timings() as timing parameters in the CONFIG1 - * register will be initialised to zero by this function. Returns 0 on - * success and appropriate negative error code on failure. - */ -int gpmc_cs_program_settings(int cs, struct gpmc_settings *p) -{ - u32 config1; - - if ((!p->device_width) || (p->device_width > GPMC_DEVWIDTH_16BIT)) { - pr_err("%s: invalid width %d!", __func__, p->device_width); - return -EINVAL; - } - - /* Address-data multiplexing not supported for NAND devices */ - if (p->device_nand && p->mux_add_data) { - pr_err("%s: invalid configuration!\n", __func__); - return -EINVAL; - } - - if ((p->mux_add_data > GPMC_MUX_AD) || - ((p->mux_add_data == GPMC_MUX_AAD) && - !(gpmc_capability & GPMC_HAS_MUX_AAD))) { - pr_err("%s: invalid multiplex configuration!\n", __func__); - return -EINVAL; - } - - /* Page/burst mode supports lengths of 4, 8 and 16 bytes */ - if (p->burst_read || p->burst_write) { - switch (p->burst_len) { - case GPMC_BURST_4: - case GPMC_BURST_8: - case GPMC_BURST_16: - break; - default: - pr_err("%s: invalid page/burst-length (%d)\n", - __func__, p->burst_len); - return -EINVAL; - } - } - - if (p->wait_pin > gpmc_nr_waitpins) { - pr_err("%s: invalid wait-pin (%d)\n", __func__, p->wait_pin); - return -EINVAL; - } - - config1 = GPMC_CONFIG1_DEVICESIZE((p->device_width - 1)); - - if (p->sync_read) - config1 |= GPMC_CONFIG1_READTYPE_SYNC; - if (p->sync_write) - config1 |= GPMC_CONFIG1_WRITETYPE_SYNC; - if (p->wait_on_read) - config1 |= GPMC_CONFIG1_WAIT_READ_MON; - if (p->wait_on_write) - config1 |= GPMC_CONFIG1_WAIT_WRITE_MON; - if (p->wait_on_read || p->wait_on_write) - config1 |= GPMC_CONFIG1_WAIT_PIN_SEL(p->wait_pin); - if (p->device_nand) - config1 |= GPMC_CONFIG1_DEVICETYPE(GPMC_DEVICETYPE_NAND); - if (p->mux_add_data) - config1 |= GPMC_CONFIG1_MUXTYPE(p->mux_add_data); - if (p->burst_read) - config1 |= GPMC_CONFIG1_READMULTIPLE_SUPP; - if (p->burst_write) - config1 |= GPMC_CONFIG1_WRITEMULTIPLE_SUPP; - if (p->burst_read || p->burst_write) { - config1 |= GPMC_CONFIG1_PAGE_LEN(p->burst_len >> 3); - config1 |= p->burst_wrap ? GPMC_CONFIG1_WRAPBURST_SUPP : 0; - } - - gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, config1); - - return 0; -} - -#ifdef CONFIG_OF -static const struct of_device_id gpmc_dt_ids[] = { - { .compatible = "ti,omap2420-gpmc" }, - { .compatible = "ti,omap2430-gpmc" }, - { .compatible = "ti,omap3430-gpmc" }, /* omap3430 & omap3630 */ - { .compatible = "ti,omap4430-gpmc" }, /* omap4430 & omap4460 & omap543x */ - { .compatible = "ti,am3352-gpmc" }, /* am335x devices */ - { } -}; -MODULE_DEVICE_TABLE(of, gpmc_dt_ids); - -/** - * gpmc_read_settings_dt - read gpmc settings from device-tree - * @np: pointer to device-tree node for a gpmc child device - * @p: pointer to gpmc settings structure - * - * Reads the GPMC settings for a GPMC child device from device-tree and - * stores them in the GPMC settings structure passed. The GPMC settings - * structure is initialised to zero by this function and so any - * previously stored settings will be cleared. - */ -void gpmc_read_settings_dt(struct device_node *np, struct gpmc_settings *p) -{ - memset(p, 0, sizeof(struct gpmc_settings)); - - p->sync_read = of_property_read_bool(np, "gpmc,sync-read"); - p->sync_write = of_property_read_bool(np, "gpmc,sync-write"); - of_property_read_u32(np, "gpmc,device-width", &p->device_width); - of_property_read_u32(np, "gpmc,mux-add-data", &p->mux_add_data); - - if (!of_property_read_u32(np, "gpmc,burst-length", &p->burst_len)) { - p->burst_wrap = of_property_read_bool(np, "gpmc,burst-wrap"); - p->burst_read = of_property_read_bool(np, "gpmc,burst-read"); - p->burst_write = of_property_read_bool(np, "gpmc,burst-write"); - if (!p->burst_read && !p->burst_write) - pr_warn("%s: page/burst-length set but not used!\n", - __func__); - } - - if (!of_property_read_u32(np, "gpmc,wait-pin", &p->wait_pin)) { - p->wait_on_read = of_property_read_bool(np, - "gpmc,wait-on-read"); - p->wait_on_write = of_property_read_bool(np, - "gpmc,wait-on-write"); - if (!p->wait_on_read && !p->wait_on_write) - pr_debug("%s: rd/wr wait monitoring not enabled!\n", - __func__); - } -} - -static void __maybe_unused gpmc_read_timings_dt(struct device_node *np, - struct gpmc_timings *gpmc_t) -{ - struct gpmc_bool_timings *p; - - if (!np || !gpmc_t) - return; - - memset(gpmc_t, 0, sizeof(*gpmc_t)); - - /* minimum clock period for syncronous mode */ - of_property_read_u32(np, "gpmc,sync-clk-ps", &gpmc_t->sync_clk); - - /* chip select timtings */ - of_property_read_u32(np, "gpmc,cs-on-ns", &gpmc_t->cs_on); - of_property_read_u32(np, "gpmc,cs-rd-off-ns", &gpmc_t->cs_rd_off); - of_property_read_u32(np, "gpmc,cs-wr-off-ns", &gpmc_t->cs_wr_off); - - /* ADV signal timings */ - of_property_read_u32(np, "gpmc,adv-on-ns", &gpmc_t->adv_on); - of_property_read_u32(np, "gpmc,adv-rd-off-ns", &gpmc_t->adv_rd_off); - of_property_read_u32(np, "gpmc,adv-wr-off-ns", &gpmc_t->adv_wr_off); - - /* WE signal timings */ - of_property_read_u32(np, "gpmc,we-on-ns", &gpmc_t->we_on); - of_property_read_u32(np, "gpmc,we-off-ns", &gpmc_t->we_off); - - /* OE signal timings */ - of_property_read_u32(np, "gpmc,oe-on-ns", &gpmc_t->oe_on); - of_property_read_u32(np, "gpmc,oe-off-ns", &gpmc_t->oe_off); - - /* access and cycle timings */ - of_property_read_u32(np, "gpmc,page-burst-access-ns", - &gpmc_t->page_burst_access); - of_property_read_u32(np, "gpmc,access-ns", &gpmc_t->access); - of_property_read_u32(np, "gpmc,rd-cycle-ns", &gpmc_t->rd_cycle); - of_property_read_u32(np, "gpmc,wr-cycle-ns", &gpmc_t->wr_cycle); - of_property_read_u32(np, "gpmc,bus-turnaround-ns", - &gpmc_t->bus_turnaround); - of_property_read_u32(np, "gpmc,cycle2cycle-delay-ns", - &gpmc_t->cycle2cycle_delay); - of_property_read_u32(np, "gpmc,wait-monitoring-ns", - &gpmc_t->wait_monitoring); - of_property_read_u32(np, "gpmc,clk-activation-ns", - &gpmc_t->clk_activation); - - /* only applicable to OMAP3+ */ - of_property_read_u32(np, "gpmc,wr-access-ns", &gpmc_t->wr_access); - of_property_read_u32(np, "gpmc,wr-data-mux-bus-ns", - &gpmc_t->wr_data_mux_bus); - - /* bool timing parameters */ - p = &gpmc_t->bool_timings; - - p->cycle2cyclediffcsen = - of_property_read_bool(np, "gpmc,cycle2cycle-diffcsen"); - p->cycle2cyclesamecsen = - of_property_read_bool(np, "gpmc,cycle2cycle-samecsen"); - p->we_extra_delay = of_property_read_bool(np, "gpmc,we-extra-delay"); - p->oe_extra_delay = of_property_read_bool(np, "gpmc,oe-extra-delay"); - p->adv_extra_delay = of_property_read_bool(np, "gpmc,adv-extra-delay"); - p->cs_extra_delay = of_property_read_bool(np, "gpmc,cs-extra-delay"); - p->time_para_granularity = - of_property_read_bool(np, "gpmc,time-para-granularity"); -} - -#if IS_ENABLED(CONFIG_MTD_NAND) - -static const char * const nand_xfer_types[] = { - [NAND_OMAP_PREFETCH_POLLED] = "prefetch-polled", - [NAND_OMAP_POLLED] = "polled", - [NAND_OMAP_PREFETCH_DMA] = "prefetch-dma", - [NAND_OMAP_PREFETCH_IRQ] = "prefetch-irq", -}; - -static int gpmc_probe_nand_child(struct platform_device *pdev, - struct device_node *child) -{ - u32 val; - const char *s; - struct gpmc_timings gpmc_t; - struct omap_nand_platform_data *gpmc_nand_data; - - if (of_property_read_u32(child, "reg", &val) < 0) { - dev_err(&pdev->dev, "%s has no 'reg' property\n", - child->full_name); - return -ENODEV; - } - - gpmc_nand_data = devm_kzalloc(&pdev->dev, sizeof(*gpmc_nand_data), - GFP_KERNEL); - if (!gpmc_nand_data) - return -ENOMEM; - - gpmc_nand_data->cs = val; - gpmc_nand_data->of_node = child; - - /* Detect availability of ELM module */ - gpmc_nand_data->elm_of_node = of_parse_phandle(child, "ti,elm-id", 0); - if (gpmc_nand_data->elm_of_node == NULL) - gpmc_nand_data->elm_of_node = - of_parse_phandle(child, "elm_id", 0); - - /* select ecc-scheme for NAND */ - if (of_property_read_string(child, "ti,nand-ecc-opt", &s)) { - pr_err("%s: ti,nand-ecc-opt not found\n", __func__); - return -ENODEV; - } - - if (!strcmp(s, "sw")) - gpmc_nand_data->ecc_opt = OMAP_ECC_HAM1_CODE_SW; - else if (!strcmp(s, "ham1") || - !strcmp(s, "hw") || !strcmp(s, "hw-romcode")) - gpmc_nand_data->ecc_opt = - OMAP_ECC_HAM1_CODE_HW; - else if (!strcmp(s, "bch4")) - if (gpmc_nand_data->elm_of_node) - gpmc_nand_data->ecc_opt = - OMAP_ECC_BCH4_CODE_HW; - else - gpmc_nand_data->ecc_opt = - OMAP_ECC_BCH4_CODE_HW_DETECTION_SW; - else if (!strcmp(s, "bch8")) - if (gpmc_nand_data->elm_of_node) - gpmc_nand_data->ecc_opt = - OMAP_ECC_BCH8_CODE_HW; - else - gpmc_nand_data->ecc_opt = - OMAP_ECC_BCH8_CODE_HW_DETECTION_SW; - else if (!strcmp(s, "bch16")) - if (gpmc_nand_data->elm_of_node) - gpmc_nand_data->ecc_opt = - OMAP_ECC_BCH16_CODE_HW; - else - pr_err("%s: BCH16 requires ELM support\n", __func__); - else - pr_err("%s: ti,nand-ecc-opt invalid value\n", __func__); - - /* select data transfer mode for NAND controller */ - if (!of_property_read_string(child, "ti,nand-xfer-type", &s)) - for (val = 0; val < ARRAY_SIZE(nand_xfer_types); val++) - if (!strcasecmp(s, nand_xfer_types[val])) { - gpmc_nand_data->xfer_type = val; - break; - } - - gpmc_nand_data->flash_bbt = of_get_nand_on_flash_bbt(child); - - val = of_get_nand_bus_width(child); - if (val == 16) - gpmc_nand_data->devsize = NAND_BUSWIDTH_16; - - gpmc_read_timings_dt(child, &gpmc_t); - gpmc_nand_init(gpmc_nand_data, &gpmc_t); - - return 0; -} -#else -static int gpmc_probe_nand_child(struct platform_device *pdev, - struct device_node *child) -{ - return 0; -} -#endif - -#if IS_ENABLED(CONFIG_MTD_ONENAND) -static int gpmc_probe_onenand_child(struct platform_device *pdev, - struct device_node *child) -{ - u32 val; - struct omap_onenand_platform_data *gpmc_onenand_data; - - if (of_property_read_u32(child, "reg", &val) < 0) { - dev_err(&pdev->dev, "%s has no 'reg' property\n", - child->full_name); - return -ENODEV; - } - - gpmc_onenand_data = devm_kzalloc(&pdev->dev, sizeof(*gpmc_onenand_data), - GFP_KERNEL); - if (!gpmc_onenand_data) - return -ENOMEM; - - gpmc_onenand_data->cs = val; - gpmc_onenand_data->of_node = child; - gpmc_onenand_data->dma_channel = -1; - - if (!of_property_read_u32(child, "dma-channel", &val)) - gpmc_onenand_data->dma_channel = val; - - gpmc_onenand_init(gpmc_onenand_data); - - return 0; -} -#else -static int gpmc_probe_onenand_child(struct platform_device *pdev, - struct device_node *child) -{ - return 0; -} -#endif - -/** - * gpmc_probe_generic_child - configures the gpmc for a child device - * @pdev: pointer to gpmc platform device - * @child: pointer to device-tree node for child device - * - * Allocates and configures a GPMC chip-select for a child device. - * Returns 0 on success and appropriate negative error code on failure. - */ -static int gpmc_probe_generic_child(struct platform_device *pdev, - struct device_node *child) -{ - struct gpmc_settings gpmc_s; - struct gpmc_timings gpmc_t; - struct resource res; - unsigned long base; - int ret, cs; - - if (of_property_read_u32(child, "reg", &cs) < 0) { - dev_err(&pdev->dev, "%s has no 'reg' property\n", - child->full_name); - return -ENODEV; - } - - if (of_address_to_resource(child, 0, &res) < 0) { - dev_err(&pdev->dev, "%s has malformed 'reg' property\n", - child->full_name); - return -ENODEV; - } - - ret = gpmc_cs_request(cs, resource_size(&res), &base); - if (ret < 0) { - dev_err(&pdev->dev, "cannot request GPMC CS %d\n", cs); - return ret; - } - - /* - * For some GPMC devices we still need to rely on the bootloader - * timings because the devices can be connected via FPGA. So far - * the list is smc91x on the omap2 SDP boards, and 8250 on zooms. - * REVISIT: Add timing support from slls644g.pdf and from the - * lan91c96 manual. - */ - if (of_device_is_compatible(child, "ns16550a") || - of_device_is_compatible(child, "smsc,lan91c94") || - of_device_is_compatible(child, "smsc,lan91c111")) { - dev_warn(&pdev->dev, - "%s using bootloader timings on CS%d\n", - child->name, cs); - goto no_timings; - } - - /* - * FIXME: gpmc_cs_request() will map the CS to an arbitary - * location in the gpmc address space. When booting with - * device-tree we want the NOR flash to be mapped to the - * location specified in the device-tree blob. So remap the - * CS to this location. Once DT migration is complete should - * just make gpmc_cs_request() map a specific address. - */ - ret = gpmc_cs_remap(cs, res.start); - if (ret < 0) { - dev_err(&pdev->dev, "cannot remap GPMC CS %d to %pa\n", - cs, &res.start); - goto err; - } - - gpmc_read_settings_dt(child, &gpmc_s); - - ret = of_property_read_u32(child, "bank-width", &gpmc_s.device_width); - if (ret < 0) - goto err; - - ret = gpmc_cs_program_settings(cs, &gpmc_s); - if (ret < 0) - goto err; - - gpmc_read_timings_dt(child, &gpmc_t); - gpmc_cs_set_timings(cs, &gpmc_t); - -no_timings: - if (of_platform_device_create(child, NULL, &pdev->dev)) - return 0; - - dev_err(&pdev->dev, "failed to create gpmc child %s\n", child->name); - ret = -ENODEV; - -err: - gpmc_cs_free(cs); - - return ret; -} - -static int gpmc_probe_dt(struct platform_device *pdev) -{ - int ret; - struct device_node *child; - const struct of_device_id *of_id = - of_match_device(gpmc_dt_ids, &pdev->dev); - - if (!of_id) - return 0; - - ret = of_property_read_u32(pdev->dev.of_node, "gpmc,num-cs", - &gpmc_cs_num); - if (ret < 0) { - pr_err("%s: number of chip-selects not defined\n", __func__); - return ret; - } else if (gpmc_cs_num < 1) { - pr_err("%s: all chip-selects are disabled\n", __func__); - return -EINVAL; - } else if (gpmc_cs_num > GPMC_CS_NUM) { - pr_err("%s: number of supported chip-selects cannot be > %d\n", - __func__, GPMC_CS_NUM); - return -EINVAL; - } - - ret = of_property_read_u32(pdev->dev.of_node, "gpmc,num-waitpins", - &gpmc_nr_waitpins); - if (ret < 0) { - pr_err("%s: number of wait pins not found!\n", __func__); - return ret; - } - - for_each_available_child_of_node(pdev->dev.of_node, child) { - - if (!child->name) - continue; - - if (of_node_cmp(child->name, "nand") == 0) - ret = gpmc_probe_nand_child(pdev, child); - else if (of_node_cmp(child->name, "onenand") == 0) - ret = gpmc_probe_onenand_child(pdev, child); - else if (of_node_cmp(child->name, "ethernet") == 0 || - of_node_cmp(child->name, "nor") == 0 || - of_node_cmp(child->name, "uart") == 0) - ret = gpmc_probe_generic_child(pdev, child); - - if (WARN(ret < 0, "%s: probing gpmc child %s failed\n", - __func__, child->full_name)) - of_node_put(child); - } - - return 0; -} -#else -static int gpmc_probe_dt(struct platform_device *pdev) -{ - return 0; -} -#endif - -static int gpmc_probe(struct platform_device *pdev) -{ - int rc; - u32 l; - struct resource *res; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) - return -ENOENT; - - phys_base = res->start; - mem_size = resource_size(res); - - gpmc_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(gpmc_base)) - return PTR_ERR(gpmc_base); - - res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (res == NULL) - dev_warn(&pdev->dev, "Failed to get resource: irq\n"); - else - gpmc_irq = res->start; - - gpmc_l3_clk = clk_get(&pdev->dev, "fck"); - if (IS_ERR(gpmc_l3_clk)) { - dev_err(&pdev->dev, "error: clk_get\n"); - gpmc_irq = 0; - return PTR_ERR(gpmc_l3_clk); - } - - pm_runtime_enable(&pdev->dev); - pm_runtime_get_sync(&pdev->dev); - - gpmc_dev = &pdev->dev; - - l = gpmc_read_reg(GPMC_REVISION); - - /* - * FIXME: Once device-tree migration is complete the below flags - * should be populated based upon the device-tree compatible - * string. For now just use the IP revision. OMAP3+ devices have - * the wr_access and wr_data_mux_bus register fields. OMAP4+ - * devices support the addr-addr-data multiplex protocol. - * - * GPMC IP revisions: - * - OMAP24xx = 2.0 - * - OMAP3xxx = 5.0 - * - OMAP44xx/54xx/AM335x = 6.0 - */ - if (GPMC_REVISION_MAJOR(l) > 0x4) - gpmc_capability = GPMC_HAS_WR_ACCESS | GPMC_HAS_WR_DATA_MUX_BUS; - if (GPMC_REVISION_MAJOR(l) > 0x5) - gpmc_capability |= GPMC_HAS_MUX_AAD; - dev_info(gpmc_dev, "GPMC revision %d.%d\n", GPMC_REVISION_MAJOR(l), - GPMC_REVISION_MINOR(l)); - - gpmc_mem_init(); - - if (gpmc_setup_irq() < 0) - dev_warn(gpmc_dev, "gpmc_setup_irq failed\n"); - - /* Now the GPMC is initialised, unreserve the chip-selects */ - gpmc_cs_map = 0; - - if (!pdev->dev.of_node) { - gpmc_cs_num = GPMC_CS_NUM; - gpmc_nr_waitpins = GPMC_NR_WAITPINS; - } - - rc = gpmc_probe_dt(pdev); - if (rc < 0) { - pm_runtime_put_sync(&pdev->dev); - clk_put(gpmc_l3_clk); - dev_err(gpmc_dev, "failed to probe DT parameters\n"); - return rc; - } - - return 0; -} - -static int gpmc_remove(struct platform_device *pdev) -{ - gpmc_free_irq(); - gpmc_mem_exit(); - pm_runtime_put_sync(&pdev->dev); - pm_runtime_disable(&pdev->dev); - gpmc_dev = NULL; - return 0; -} - -#ifdef CONFIG_PM_SLEEP -static int gpmc_suspend(struct device *dev) -{ - omap3_gpmc_save_context(); - pm_runtime_put_sync(dev); - return 0; -} - -static int gpmc_resume(struct device *dev) -{ - pm_runtime_get_sync(dev); - omap3_gpmc_restore_context(); - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(gpmc_pm_ops, gpmc_suspend, gpmc_resume); - -static struct platform_driver gpmc_driver = { - .probe = gpmc_probe, - .remove = gpmc_remove, - .driver = { - .name = DEVICE_NAME, - .owner = THIS_MODULE, - .of_match_table = of_match_ptr(gpmc_dt_ids), - .pm = &gpmc_pm_ops, - }, -}; - -static __init int gpmc_init(void) -{ - return platform_driver_register(&gpmc_driver); -} - -static __exit void gpmc_exit(void) -{ - platform_driver_unregister(&gpmc_driver); - -} - -omap_postcore_initcall(gpmc_init); -module_exit(gpmc_exit); - -static int __init omap_gpmc_init(void) -{ - struct omap_hwmod *oh; - struct platform_device *pdev; - char *oh_name = "gpmc"; - - /* - * if the board boots up with a populated DT, do not - * manually add the device from this initcall - */ - if (of_have_populated_dt()) - return -ENODEV; - - oh = omap_hwmod_lookup(oh_name); - if (!oh) { - pr_err("Could not look up %s\n", oh_name); - return -ENODEV; - } - - pdev = omap_device_build(DEVICE_NAME, -1, oh, NULL, 0); - WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name); - - return PTR_RET(pdev); -} -omap_postcore_initcall(omap_gpmc_init); - -static irqreturn_t gpmc_handle_irq(int irq, void *dev) -{ - int i; - u32 regval; - - regval = gpmc_read_reg(GPMC_IRQSTATUS); - - if (!regval) - return IRQ_NONE; - - for (i = 0; i < GPMC_NR_IRQ; i++) - if (regval & gpmc_client_irq[i].bitmask) - generic_handle_irq(gpmc_client_irq[i].irq); - - gpmc_write_reg(GPMC_IRQSTATUS, regval); - - return IRQ_HANDLED; -} - -static struct omap3_gpmc_regs gpmc_context; - -void omap3_gpmc_save_context(void) -{ - int i; - - gpmc_context.sysconfig = gpmc_read_reg(GPMC_SYSCONFIG); - gpmc_context.irqenable = gpmc_read_reg(GPMC_IRQENABLE); - gpmc_context.timeout_ctrl = gpmc_read_reg(GPMC_TIMEOUT_CONTROL); - gpmc_context.config = gpmc_read_reg(GPMC_CONFIG); - gpmc_context.prefetch_config1 = gpmc_read_reg(GPMC_PREFETCH_CONFIG1); - gpmc_context.prefetch_config2 = gpmc_read_reg(GPMC_PREFETCH_CONFIG2); - gpmc_context.prefetch_control = gpmc_read_reg(GPMC_PREFETCH_CONTROL); - for (i = 0; i < gpmc_cs_num; i++) { - gpmc_context.cs_context[i].is_valid = gpmc_cs_mem_enabled(i); - if (gpmc_context.cs_context[i].is_valid) { - gpmc_context.cs_context[i].config1 = - gpmc_cs_read_reg(i, GPMC_CS_CONFIG1); - gpmc_context.cs_context[i].config2 = - gpmc_cs_read_reg(i, GPMC_CS_CONFIG2); - gpmc_context.cs_context[i].config3 = - gpmc_cs_read_reg(i, GPMC_CS_CONFIG3); - gpmc_context.cs_context[i].config4 = - gpmc_cs_read_reg(i, GPMC_CS_CONFIG4); - gpmc_context.cs_context[i].config5 = - gpmc_cs_read_reg(i, GPMC_CS_CONFIG5); - gpmc_context.cs_context[i].config6 = - gpmc_cs_read_reg(i, GPMC_CS_CONFIG6); - gpmc_context.cs_context[i].config7 = - gpmc_cs_read_reg(i, GPMC_CS_CONFIG7); - } - } -} - -void omap3_gpmc_restore_context(void) -{ - int i; - - gpmc_write_reg(GPMC_SYSCONFIG, gpmc_context.sysconfig); - gpmc_write_reg(GPMC_IRQENABLE, gpmc_context.irqenable); - gpmc_write_reg(GPMC_TIMEOUT_CONTROL, gpmc_context.timeout_ctrl); - gpmc_write_reg(GPMC_CONFIG, gpmc_context.config); - gpmc_write_reg(GPMC_PREFETCH_CONFIG1, gpmc_context.prefetch_config1); - gpmc_write_reg(GPMC_PREFETCH_CONFIG2, gpmc_context.prefetch_config2); - gpmc_write_reg(GPMC_PREFETCH_CONTROL, gpmc_context.prefetch_control); - for (i = 0; i < gpmc_cs_num; i++) { - if (gpmc_context.cs_context[i].is_valid) { - gpmc_cs_write_reg(i, GPMC_CS_CONFIG1, - gpmc_context.cs_context[i].config1); - gpmc_cs_write_reg(i, GPMC_CS_CONFIG2, - gpmc_context.cs_context[i].config2); - gpmc_cs_write_reg(i, GPMC_CS_CONFIG3, - gpmc_context.cs_context[i].config3); - gpmc_cs_write_reg(i, GPMC_CS_CONFIG4, - gpmc_context.cs_context[i].config4); - gpmc_cs_write_reg(i, GPMC_CS_CONFIG5, - gpmc_context.cs_context[i].config5); - gpmc_cs_write_reg(i, GPMC_CS_CONFIG6, - gpmc_context.cs_context[i].config6); - gpmc_cs_write_reg(i, GPMC_CS_CONFIG7, - gpmc_context.cs_context[i].config7); - } - } -} diff --git a/arch/arm/mach-omap2/gpmc.h b/arch/arm/mach-omap2/gpmc.h index 707f6d58edd5..9caa41a6cb04 100644 --- a/arch/arm/mach-omap2/gpmc.h +++ b/arch/arm/mach-omap2/gpmc.h @@ -6,226 +6,9 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. + * + * Do not include this file in any new code, this will get removed + * once omap3 boots in device tree only mode. + * */ - -#ifndef __OMAP2_GPMC_H -#define __OMAP2_GPMC_H - -#include <linux/platform_data/mtd-nand-omap2.h> - -/* Maximum Number of Chip Selects */ -#define GPMC_CS_NUM 8 - -#define GPMC_CS_CONFIG1 0x00 -#define GPMC_CS_CONFIG2 0x04 -#define GPMC_CS_CONFIG3 0x08 -#define GPMC_CS_CONFIG4 0x0c -#define GPMC_CS_CONFIG5 0x10 -#define GPMC_CS_CONFIG6 0x14 -#define GPMC_CS_CONFIG7 0x18 -#define GPMC_CS_NAND_COMMAND 0x1c -#define GPMC_CS_NAND_ADDRESS 0x20 -#define GPMC_CS_NAND_DATA 0x24 - -/* Control Commands */ -#define GPMC_CONFIG_RDY_BSY 0x00000001 -#define GPMC_CONFIG_DEV_SIZE 0x00000002 -#define GPMC_CONFIG_DEV_TYPE 0x00000003 -#define GPMC_SET_IRQ_STATUS 0x00000004 -#define GPMC_CONFIG_WP 0x00000005 - -#define GPMC_ENABLE_IRQ 0x0000000d - -/* ECC commands */ -#define GPMC_ECC_READ 0 /* Reset Hardware ECC for read */ -#define GPMC_ECC_WRITE 1 /* Reset Hardware ECC for write */ -#define GPMC_ECC_READSYN 2 /* Reset before syndrom is read back */ - -#define GPMC_CONFIG1_WRAPBURST_SUPP (1 << 31) -#define GPMC_CONFIG1_READMULTIPLE_SUPP (1 << 30) -#define GPMC_CONFIG1_READTYPE_ASYNC (0 << 29) -#define GPMC_CONFIG1_READTYPE_SYNC (1 << 29) -#define GPMC_CONFIG1_WRITEMULTIPLE_SUPP (1 << 28) -#define GPMC_CONFIG1_WRITETYPE_ASYNC (0 << 27) -#define GPMC_CONFIG1_WRITETYPE_SYNC (1 << 27) -#define GPMC_CONFIG1_CLKACTIVATIONTIME(val) ((val & 3) << 25) -#define GPMC_CONFIG1_PAGE_LEN(val) ((val & 3) << 23) -#define GPMC_CONFIG1_WAIT_READ_MON (1 << 22) -#define GPMC_CONFIG1_WAIT_WRITE_MON (1 << 21) -#define GPMC_CONFIG1_WAIT_MON_IIME(val) ((val & 3) << 18) -#define GPMC_CONFIG1_WAIT_PIN_SEL(val) ((val & 3) << 16) -#define GPMC_CONFIG1_DEVICESIZE(val) ((val & 3) << 12) -#define GPMC_CONFIG1_DEVICESIZE_16 GPMC_CONFIG1_DEVICESIZE(1) -#define GPMC_CONFIG1_DEVICETYPE(val) ((val & 3) << 10) -#define GPMC_CONFIG1_DEVICETYPE_NOR GPMC_CONFIG1_DEVICETYPE(0) -#define GPMC_CONFIG1_MUXTYPE(val) ((val & 3) << 8) -#define GPMC_CONFIG1_TIME_PARA_GRAN (1 << 4) -#define GPMC_CONFIG1_FCLK_DIV(val) (val & 3) -#define GPMC_CONFIG1_FCLK_DIV2 (GPMC_CONFIG1_FCLK_DIV(1)) -#define GPMC_CONFIG1_FCLK_DIV3 (GPMC_CONFIG1_FCLK_DIV(2)) -#define GPMC_CONFIG1_FCLK_DIV4 (GPMC_CONFIG1_FCLK_DIV(3)) -#define GPMC_CONFIG7_CSVALID (1 << 6) - -#define GPMC_DEVICETYPE_NOR 0 -#define GPMC_DEVICETYPE_NAND 2 -#define GPMC_CONFIG_WRITEPROTECT 0x00000010 -#define WR_RD_PIN_MONITORING 0x00600000 -#define GPMC_IRQ_FIFOEVENTENABLE 0x01 -#define GPMC_IRQ_COUNT_EVENT 0x02 - -#define GPMC_BURST_4 4 /* 4 word burst */ -#define GPMC_BURST_8 8 /* 8 word burst */ -#define GPMC_BURST_16 16 /* 16 word burst */ -#define GPMC_DEVWIDTH_8BIT 1 /* 8-bit device width */ -#define GPMC_DEVWIDTH_16BIT 2 /* 16-bit device width */ -#define GPMC_MUX_AAD 1 /* Addr-Addr-Data multiplex */ -#define GPMC_MUX_AD 2 /* Addr-Data multiplex */ - -/* bool type time settings */ -struct gpmc_bool_timings { - bool cycle2cyclediffcsen; - bool cycle2cyclesamecsen; - bool we_extra_delay; - bool oe_extra_delay; - bool adv_extra_delay; - bool cs_extra_delay; - bool time_para_granularity; -}; - -/* - * Note that all values in this struct are in nanoseconds except sync_clk - * (which is in picoseconds), while the register values are in gpmc_fck cycles. - */ -struct gpmc_timings { - /* Minimum clock period for synchronous mode (in picoseconds) */ - u32 sync_clk; - - /* Chip-select signal timings corresponding to GPMC_CS_CONFIG2 */ - u32 cs_on; /* Assertion time */ - u32 cs_rd_off; /* Read deassertion time */ - u32 cs_wr_off; /* Write deassertion time */ - - /* ADV signal timings corresponding to GPMC_CONFIG3 */ - u32 adv_on; /* Assertion time */ - u32 adv_rd_off; /* Read deassertion time */ - u32 adv_wr_off; /* Write deassertion time */ - - /* WE signals timings corresponding to GPMC_CONFIG4 */ - u32 we_on; /* WE assertion time */ - u32 we_off; /* WE deassertion time */ - - /* OE signals timings corresponding to GPMC_CONFIG4 */ - u32 oe_on; /* OE assertion time */ - u32 oe_off; /* OE deassertion time */ - - /* Access time and cycle time timings corresponding to GPMC_CONFIG5 */ - u32 page_burst_access; /* Multiple access word delay */ - u32 access; /* Start-cycle to first data valid delay */ - u32 rd_cycle; /* Total read cycle time */ - u32 wr_cycle; /* Total write cycle time */ - - u32 bus_turnaround; - u32 cycle2cycle_delay; - - u32 wait_monitoring; - u32 clk_activation; - - /* The following are only on OMAP3430 */ - u32 wr_access; /* WRACCESSTIME */ - u32 wr_data_mux_bus; /* WRDATAONADMUXBUS */ - - struct gpmc_bool_timings bool_timings; -}; - -/* Device timings in picoseconds */ -struct gpmc_device_timings { - u32 t_ceasu; /* address setup to CS valid */ - u32 t_avdasu; /* address setup to ADV valid */ - /* XXX: try to combine t_avdp_r & t_avdp_w. Issue is - * of tusb using these timings even for sync whilst - * ideally for adv_rd/(wr)_off it should have considered - * t_avdh instead. This indirectly necessitates r/w - * variations of t_avdp as it is possible to have one - * sync & other async - */ - u32 t_avdp_r; /* ADV low time (what about t_cer ?) */ - u32 t_avdp_w; - u32 t_aavdh; /* address hold time */ - u32 t_oeasu; /* address setup to OE valid */ - u32 t_aa; /* access time from ADV assertion */ - u32 t_iaa; /* initial access time */ - u32 t_oe; /* access time from OE assertion */ - u32 t_ce; /* access time from CS asertion */ - u32 t_rd_cycle; /* read cycle time */ - u32 t_cez_r; /* read CS deassertion to high Z */ - u32 t_cez_w; /* write CS deassertion to high Z */ - u32 t_oez; /* OE deassertion to high Z */ - u32 t_weasu; /* address setup to WE valid */ - u32 t_wpl; /* write assertion time */ - u32 t_wph; /* write deassertion time */ - u32 t_wr_cycle; /* write cycle time */ - - u32 clk; - u32 t_bacc; /* burst access valid clock to output delay */ - u32 t_ces; /* CS setup time to clk */ - u32 t_avds; /* ADV setup time to clk */ - u32 t_avdh; /* ADV hold time from clk */ - u32 t_ach; /* address hold time from clk */ - u32 t_rdyo; /* clk to ready valid */ - - u32 t_ce_rdyz; /* XXX: description ?, or use t_cez instead */ - u32 t_ce_avd; /* CS on to ADV on delay */ - - /* XXX: check the possibility of combining - * cyc_aavhd_oe & cyc_aavdh_we - */ - u8 cyc_aavdh_oe;/* read address hold time in cycles */ - u8 cyc_aavdh_we;/* write address hold time in cycles */ - u8 cyc_oe; /* access time from OE assertion in cycles */ - u8 cyc_wpl; /* write deassertion time in cycles */ - u32 cyc_iaa; /* initial access time in cycles */ - - /* extra delays */ - bool ce_xdelay; - bool avd_xdelay; - bool oe_xdelay; - bool we_xdelay; -}; - -struct gpmc_settings { - bool burst_wrap; /* enables wrap bursting */ - bool burst_read; /* enables read page/burst mode */ - bool burst_write; /* enables write page/burst mode */ - bool device_nand; /* device is NAND */ - bool sync_read; /* enables synchronous reads */ - bool sync_write; /* enables synchronous writes */ - bool wait_on_read; /* monitor wait on reads */ - bool wait_on_write; /* monitor wait on writes */ - u32 burst_len; /* page/burst length */ - u32 device_width; /* device bus width (8 or 16 bit) */ - u32 mux_add_data; /* multiplex address & data */ - u32 wait_pin; /* wait-pin to be used */ -}; - -extern int gpmc_calc_timings(struct gpmc_timings *gpmc_t, - struct gpmc_settings *gpmc_s, - struct gpmc_device_timings *dev_t); - -extern void gpmc_update_nand_reg(struct gpmc_nand_regs *reg, int cs); -extern int gpmc_get_client_irq(unsigned irq_config); - -extern unsigned int gpmc_ticks_to_ns(unsigned int ticks); - -extern void gpmc_cs_write_reg(int cs, int idx, u32 val); -extern int gpmc_calc_divider(unsigned int sync_clk); -extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t); -extern int gpmc_cs_program_settings(int cs, struct gpmc_settings *p); -extern int gpmc_cs_request(int cs, unsigned long size, unsigned long *base); -extern void gpmc_cs_free(int cs); -extern void omap3_gpmc_save_context(void); -extern void omap3_gpmc_restore_context(void); -extern int gpmc_configure(int cmd, int wval); -extern void gpmc_read_settings_dt(struct device_node *np, - struct gpmc_settings *p); - -#endif +#include <linux/omap-gpmc.h> diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 175564c88a30..88721df6001d 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -29,6 +29,7 @@ #include <linux/delay.h> #include <linux/slab.h> #include <linux/omap-dma.h> +#include <linux/omap-gpmc.h> #include <linux/platform_data/gpio-omap.h> #include <trace/events/power.h> @@ -43,7 +44,6 @@ #include "common.h" #include "cm3xxx.h" #include "cm-regbits-34xx.h" -#include "gpmc.h" #include "prm-regbits-34xx.h" #include "prm3xxx.h" #include "pm.h" |