diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-2430sdp.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-2430sdp.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c new file mode 100644 index 00000000000..7e76fbf19b5 --- /dev/null +++ b/arch/arm/mach-omap2/board-2430sdp.c @@ -0,0 +1,218 @@ +/* + * linux/arch/arm/mach-omap2/board-2430sdp.c + * + * Copyright (C) 2006 Texas Instruments + * + * Modified from mach-omap2/board-generic.c + * + * Initial Code : Based on a patch from Komal Shah and Richard Woodruff + * Updated the Code for 2430 SDP : 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/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/clk.h> + +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/flash.h> + +#include <asm/arch/gpio.h> +#include <asm/arch/mux.h> +#include <asm/arch/board.h> +#include <asm/arch/common.h> +#include <asm/arch/gpmc.h> +#include "prcm-regs.h" + +#include <asm/io.h> + + +#define SDP2430_FLASH_CS 0 +#define SDP2430_SMC91X_CS 5 + +static struct mtd_partition sdp2430_partitions[] = { + /* bootloader (U-Boot, etc) in first sector */ + { + .name = "bootloader", + .offset = 0, + .size = SZ_256K, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + /* bootloader params in the next sector */ + { + .name = "params", + .offset = MTDPART_OFS_APPEND, + .size = SZ_128K, + .mask_flags = 0, + }, + /* kernel */ + { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = SZ_2M, + .mask_flags = 0 + }, + /* file system */ + { + .name = "filesystem", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + .mask_flags = 0 + } +}; + +static struct flash_platform_data sdp2430_flash_data = { + .map_name = "cfi_probe", + .width = 2, + .parts = sdp2430_partitions, + .nr_parts = ARRAY_SIZE(sdp2430_partitions), +}; + +static struct resource sdp2430_flash_resource = { + .start = SDP2430_CS0_BASE, + .end = SDP2430_CS0_BASE + SZ_64M - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device sdp2430_flash_device = { + .name = "omapflash", + .id = 0, + .dev = { + .platform_data = &sdp2430_flash_data, + }, + .num_resources = 1, + .resource = &sdp2430_flash_resource, +}; + +static struct resource sdp2430_smc91x_resources[] = { + [0] = { + .start = SDP2430_CS0_BASE, + .end = SDP2430_CS0_BASE + SZ_64M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ), + .end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device sdp2430_smc91x_device = { + .name = "smc91x", + .id = -1, + .num_resources = ARRAY_SIZE(sdp2430_smc91x_resources), + .resource = sdp2430_smc91x_resources, +}; + +static struct platform_device *sdp2430_devices[] __initdata = { + &sdp2430_smc91x_device, + &sdp2430_flash_device, +}; + +static inline void __init sdp2430_init_smc91x(void) +{ + int eth_cs; + unsigned long cs_mem_base; + unsigned int rate; + struct clk *l3ck; + + eth_cs = SDP2430_SMC91X_CS; + + l3ck = clk_get(NULL, "core_l3_ck"); + if (IS_ERR(l3ck)) + rate = 100000000; + else + rate = clk_get_rate(l3ck); + + /* Make sure CS1 timings are correct, for 2430 always muxed */ + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200); + + if (rate >= 160000000) { + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); + } else if (rate >= 130000000) { + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); + } else { /* rate = 100000000 */ + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F); + gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2); + } + + if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) { + printk(KERN_ERR "Failed to request GPMC mem for smc91x\n"); + return; + } + + sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300; + sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f; + udelay(100); + + if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) { + printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", + OMAP24XX_ETHR_GPIO_IRQ); + gpmc_cs_free(eth_cs); + return; + } + omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1); + +} + +static void __init omap_2430sdp_init_irq(void) +{ + omap2_init_common_hw(); + omap_init_irq(); + omap_gpio_init(); + sdp2430_init_smc91x(); +} + +static struct omap_uart_config sdp2430_uart_config __initdata = { + .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), +}; + +static struct omap_board_config_kernel sdp2430_config[] = { + {OMAP_TAG_UART, &sdp2430_uart_config}, +}; + +static void __init omap_2430sdp_init(void) +{ + platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices)); + omap_board_config = sdp2430_config; + omap_board_config_size = ARRAY_SIZE(sdp2430_config); + omap_serial_init(); +} + +static void __init omap_2430sdp_map_io(void) +{ + omap2_map_common_io(); +} + +MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board") + /* Maintainer: Syed Khasim - Texas Instruments Inc */ + .phys_io = 0x48000000, + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, + .boot_params = 0x80000100, + .map_io = omap_2430sdp_map_io, + .init_irq = omap_2430sdp_init_irq, + .init_machine = omap_2430sdp_init, + .timer = &omap_timer, +MACHINE_END |