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authorSricharan <r.sricharan@ti.com>2011-11-15 09:49:50 -0500
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2011-11-15 22:25:50 +0100
commitce170beeb74ef44e60f6be0204782be564910760 (patch)
tree5f9c6a34f88c7db1f93caaf5d5a1ff73d1954c0f /arch/arm/cpu/armv7/omap4/board.c
parent24ccca5eb9e25474e273c0f6dd70220534ce1746 (diff)
downloadu-boot-linaro-stable-ce170beeb74ef44e60f6be0204782be564910760.tar.gz
omap4: make omap4 code common for future reuse
Much of omap4 soc support code can be reused for omap5. Move them to the omap-common directory to facilitate this. Signed-off-by: sricharan <r.sricharan@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7/omap4/board.c')
-rw-r--r--arch/arm/cpu/armv7/omap4/board.c384
1 files changed, 0 insertions, 384 deletions
diff --git a/arch/arm/cpu/armv7/omap4/board.c b/arch/arm/cpu/armv7/omap4/board.c
deleted file mode 100644
index 2497e3e72..000000000
--- a/arch/arm/cpu/armv7/omap4/board.c
+++ /dev/null
@@ -1,384 +0,0 @@
-/*
- *
- * Common functions for OMAP4 based boards
- *
- * (C) Copyright 2010
- * Texas Instruments, <www.ti.com>
- *
- * Author :
- * Aneesh V <aneesh@ti.com>
- * Steve Sakoman <steve@sakoman.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-#include <asm/armv7.h>
-#include <asm/arch/cpu.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/sizes.h>
-#include <asm/arch/emif.h>
-#include <asm/arch/gpio.h>
-#include "omap4_mux_data.h"
-
-DECLARE_GLOBAL_DATA_PTR;
-
-u32 *const omap4_revision = (u32 *)OMAP4_SRAM_SCRATCH_OMAP4_REV;
-
-static const struct gpio_bank gpio_bank_44xx[6] = {
- { (void *)OMAP44XX_GPIO1_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP44XX_GPIO2_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP44XX_GPIO3_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP44XX_GPIO4_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP44XX_GPIO5_BASE, METHOD_GPIO_24XX },
- { (void *)OMAP44XX_GPIO6_BASE, METHOD_GPIO_24XX },
-};
-
-const struct gpio_bank *const omap_gpio_bank = gpio_bank_44xx;
-
-#ifdef CONFIG_SPL_BUILD
-/*
- * We use static variables because global data is not ready yet.
- * Initialized data is available in SPL right from the beginning.
- * We would not typically need to save these parameters in regular
- * U-Boot. This is needed only in SPL at the moment.
- */
-u32 omap4_boot_device = BOOT_DEVICE_MMC1;
-u32 omap4_boot_mode = MMCSD_MODE_FAT;
-
-u32 omap_boot_device(void)
-{
- return omap4_boot_device;
-}
-
-u32 omap_boot_mode(void)
-{
- return omap4_boot_mode;
-}
-
-/*
- * Some tuning of IOs for optimal power and performance
- */
-static void do_io_settings(void)
-{
- u32 lpddr2io;
- struct control_lpddr2io_regs *lpddr2io_regs =
- (struct control_lpddr2io_regs *)LPDDR2_IO_REGS_BASE;
- struct omap4_sys_ctrl_regs *const ctrl =
- (struct omap4_sys_ctrl_regs *)SYSCTRL_GENERAL_CORE_BASE;
-
- u32 omap4_rev = omap_revision();
-
- if (omap4_rev == OMAP4430_ES1_0)
- lpddr2io = CONTROL_LPDDR2IO_SLEW_125PS_DRV8_PULL_DOWN;
- else if (omap4_rev == OMAP4430_ES2_0)
- lpddr2io = CONTROL_LPDDR2IO_SLEW_325PS_DRV8_GATE_KEEPER;
- else
- lpddr2io = CONTROL_LPDDR2IO_SLEW_315PS_DRV12_PULL_DOWN;
-
- /* EMIF1 */
- writel(lpddr2io, &lpddr2io_regs->control_lpddr2io1_0);
- writel(lpddr2io, &lpddr2io_regs->control_lpddr2io1_1);
- /* No pull for GR10 as per hw team's recommendation */
- writel(lpddr2io & ~LPDDR2IO_GR10_WD_MASK,
- &lpddr2io_regs->control_lpddr2io1_2);
- writel(CONTROL_LPDDR2IO_3_VAL, &lpddr2io_regs->control_lpddr2io1_3);
-
- /* EMIF2 */
- writel(lpddr2io, &lpddr2io_regs->control_lpddr2io2_0);
- writel(lpddr2io, &lpddr2io_regs->control_lpddr2io2_1);
- /* No pull for GR10 as per hw team's recommendation */
- writel(lpddr2io & ~LPDDR2IO_GR10_WD_MASK,
- &lpddr2io_regs->control_lpddr2io2_2);
- writel(CONTROL_LPDDR2IO_3_VAL, &lpddr2io_regs->control_lpddr2io2_3);
-
- /*
- * Some of these settings (TRIM values) come from eFuse and are
- * in turn programmed in the eFuse at manufacturing time after
- * calibration of the device. Do the software over-ride only if
- * the device is not correctly trimmed
- */
- if (!(readl(&ctrl->control_std_fuse_opp_bgap) & 0xFFFF)) {
-
- writel(LDOSRAM_VOLT_CTRL_OVERRIDE,
- &ctrl->control_ldosram_iva_voltage_ctrl);
-
- writel(LDOSRAM_VOLT_CTRL_OVERRIDE,
- &ctrl->control_ldosram_mpu_voltage_ctrl);
-
- writel(LDOSRAM_VOLT_CTRL_OVERRIDE,
- &ctrl->control_ldosram_core_voltage_ctrl);
- }
-
- if (!readl(&ctrl->control_efuse_1))
- writel(CONTROL_EFUSE_1_OVERRIDE, &ctrl->control_efuse_1);
-
- if (!readl(&ctrl->control_efuse_2))
- writel(CONTROL_EFUSE_2_OVERRIDE, &ctrl->control_efuse_2);
-}
-#endif
-
-void do_set_mux(u32 base, struct pad_conf_entry const *array, int size)
-{
- int i;
- struct pad_conf_entry *pad = (struct pad_conf_entry *) array;
-
- for (i = 0; i < size; i++, pad++)
- writew(pad->val, base + pad->offset);
-}
-
-static void set_muxconf_regs_essential(void)
-{
- do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential,
- sizeof(core_padconf_array_essential) /
- sizeof(struct pad_conf_entry));
-
- do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential,
- sizeof(wkup_padconf_array_essential) /
- sizeof(struct pad_conf_entry));
-
- if (omap_revision() >= OMAP4460_ES1_0)
- do_set_mux(CONTROL_PADCONF_WKUP,
- wkup_padconf_array_essential_4460,
- sizeof(wkup_padconf_array_essential_4460) /
- sizeof(struct pad_conf_entry));
-}
-
-static void set_mux_conf_regs(void)
-{
- switch (omap4_hw_init_context()) {
- case OMAP_INIT_CONTEXT_SPL:
- set_muxconf_regs_essential();
- break;
- case OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL:
- set_muxconf_regs_non_essential();
- break;
- case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR:
- case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH:
- set_muxconf_regs_essential();
- set_muxconf_regs_non_essential();
- break;
- }
-}
-
-static u32 cortex_a9_rev(void)
-{
-
- unsigned int rev;
-
- /* Read Main ID Register (MIDR) */
- asm ("mrc p15, 0, %0, c0, c0, 0" : "=r" (rev));
-
- return rev;
-}
-
-static void init_omap4_revision(void)
-{
- /*
- * For some of the ES2/ES1 boards ID_CODE is not reliable:
- * Also, ES1 and ES2 have different ARM revisions
- * So use ARM revision for identification
- */
- unsigned int arm_rev = cortex_a9_rev();
-
- switch (arm_rev) {
- case MIDR_CORTEX_A9_R0P1:
- *omap4_revision = OMAP4430_ES1_0;
- break;
- case MIDR_CORTEX_A9_R1P2:
- switch (readl(CONTROL_ID_CODE)) {
- case OMAP4430_CONTROL_ID_CODE_ES2_0:
- *omap4_revision = OMAP4430_ES2_0;
- break;
- case OMAP4430_CONTROL_ID_CODE_ES2_1:
- *omap4_revision = OMAP4430_ES2_1;
- break;
- case OMAP4430_CONTROL_ID_CODE_ES2_2:
- *omap4_revision = OMAP4430_ES2_2;
- break;
- default:
- *omap4_revision = OMAP4430_ES2_0;
- break;
- }
- break;
- case MIDR_CORTEX_A9_R1P3:
- *omap4_revision = OMAP4430_ES2_3;
- break;
- case MIDR_CORTEX_A9_R2P10:
- switch (readl(CONTROL_ID_CODE)) {
- case OMAP4460_CONTROL_ID_CODE_ES1_0:
- *omap4_revision = OMAP4460_ES1_0;
- break;
- case OMAP4460_CONTROL_ID_CODE_ES1_1:
- *omap4_revision = OMAP4460_ES1_1;
- break;
- default:
- *omap4_revision = OMAP4460_ES1_0;
- break;
- }
- break;
- default:
- *omap4_revision = OMAP4430_SILICON_ID_INVALID;
- break;
- }
-}
-
-void omap_rev_string(char *omap4_rev_string)
-{
- u32 omap4_rev = omap_revision();
- u32 omap4_variant = (omap4_rev & 0xFFFF0000) >> 16;
- u32 major_rev = (omap4_rev & 0x00000F00) >> 8;
- u32 minor_rev = (omap4_rev & 0x000000F0) >> 4;
-
- sprintf(omap4_rev_string, "OMAP%x ES%x.%x", omap4_variant, major_rev,
- minor_rev);
-}
-
-/*
- * Routine: s_init
- * Description: Does early system init of watchdog, muxing, andclocks
- * Watchdog disable is done always. For the rest what gets done
- * depends on the boot mode in which this function is executed
- * 1. s_init of SPL running from SRAM
- * 2. s_init of U-Boot running from FLASH
- * 3. s_init of U-Boot loaded to SDRAM by SPL
- * 4. s_init of U-Boot loaded to SDRAM by ROM code using the
- * Configuration Header feature
- * Please have a look at the respective functions to see what gets
- * done in each of these cases
- * This function is called with SRAM stack.
- */
-void s_init(void)
-{
- init_omap4_revision();
- watchdog_init();
- set_mux_conf_regs();
-#ifdef CONFIG_SPL_BUILD
- setup_clocks_for_console();
- preloader_console_init();
- do_io_settings();
-#endif
- prcm_init();
-#ifdef CONFIG_SPL_BUILD
- /* For regular u-boot sdram_init() is called from dram_init() */
- sdram_init();
-#endif
-}
-
-/*
- * Routine: wait_for_command_complete
- * Description: Wait for posting to finish on watchdog
- */
-void wait_for_command_complete(struct watchdog *wd_base)
-{
- int pending = 1;
- do {
- pending = readl(&wd_base->wwps);
- } while (pending);
-}
-
-/*
- * Routine: watchdog_init
- * Description: Shut down watch dogs
- */
-void watchdog_init(void)
-{
- struct watchdog *wd2_base = (struct watchdog *)WDT2_BASE;
-
- writel(WD_UNLOCK1, &wd2_base->wspr);
- wait_for_command_complete(wd2_base);
- writel(WD_UNLOCK2, &wd2_base->wspr);
-}
-
-
-/*
- * This function finds the SDRAM size available in the system
- * based on DMM section configurations
- * This is needed because the size of memory installed may be
- * different on different versions of the board
- */
-u32 omap4_sdram_size(void)
-{
- u32 section, i, total_size = 0, size, addr;
- for (i = 0; i < 4; i++) {
- section = __raw_readl(OMAP44XX_DMM_LISA_MAP_BASE + i*4);
- addr = section & OMAP44XX_SYS_ADDR_MASK;
- /* See if the address is valid */
- if ((addr >= OMAP44XX_DRAM_ADDR_SPACE_START) &&
- (addr < OMAP44XX_DRAM_ADDR_SPACE_END)) {
- size = ((section & OMAP44XX_SYS_SIZE_MASK) >>
- OMAP44XX_SYS_SIZE_SHIFT);
- size = 1 << size;
- size *= SZ_16M;
- total_size += size;
- }
- }
- return total_size;
-}
-
-
-/*
- * Routine: dram_init
- * Description: sets uboots idea of sdram size
- */
-int dram_init(void)
-{
- sdram_init();
- gd->ram_size = omap4_sdram_size();
-
- return 0;
-}
-
-/*
- * Print board information
- */
-int checkboard(void)
-{
- puts(sysinfo.board_string);
- return 0;
-}
-
-/*
-* This function is called by start_armboot. You can reliably use static
-* data. Any boot-time function that require static data should be
-* called from here
-*/
-int arch_cpu_init(void)
-{
- return 0;
-}
-
-#ifndef CONFIG_SYS_L2CACHE_OFF
-void v7_outer_cache_enable(void)
-{
- set_pl310_ctrl_reg(1);
-}
-
-void v7_outer_cache_disable(void)
-{
- set_pl310_ctrl_reg(0);
-}
-#endif
-
-#ifndef CONFIG_SYS_DCACHE_OFF
-void enable_caches(void)
-{
- /* Enable D-cache. I-cache is already enabled in start.S */
- dcache_enable();
-}
-#endif