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raw | patch | inline | side by side (parent: f92f227)
author | SRICHARAN R <r.sricharan@ti.com> | |
Wed, 24 Apr 2013 00:41:23 +0000 (00:41 +0000) | ||
committer | Tom Rini <trini@ti.com> | |
Fri, 10 May 2013 12:25:56 +0000 (08:25 -0400) |
Currently save_boot_params saves the boot parameters passed
from romcode. But this is not stored in a writable location
consistently. So the current code would not work for a
'XIP' boot. Change this by saving the boot parameters in
'gd' which is always writable. Also add a 'C' function
instead of an assembly code that is more readable.
Signed-off-by: Sricharan R <r.sricharan@ti.com>
from romcode. But this is not stored in a writable location
consistently. So the current code would not work for a
'XIP' boot. Change this by saving the boot parameters in
'gd' which is always writable. Also add a 'C' function
instead of an assembly code that is more readable.
Signed-off-by: Sricharan R <r.sricharan@ti.com>
diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
index 70d16a816070b779cb3b6f1fac5bf9b734220f99..c7107847c4fd8ce9028c9d9b19958f03c5865ff4 100644 (file)
}
#ifdef CONFIG_SPL_BUILD
-static void init_boot_params(void)
-{
- boot_params_ptr = (u32 *) &boot_params;
-}
-
void spl_display_print(void)
{
omap_rev_string();
{
}
+static void save_omap_boot_params(void)
+{
+ u32 rom_params = *((u32 *)OMAP_SRAM_SCRATCH_BOOT_PARAMS);
+ u8 boot_device;
+ u32 dev_desc, dev_data;
+
+ if ((rom_params < NON_SECURE_SRAM_START) ||
+ (rom_params > NON_SECURE_SRAM_END))
+ return;
+
+ /*
+ * rom_params can be type casted to omap_boot_parameters and
+ * used. But it not correct to assume that romcode structure
+ * encoding would be same as u-boot. So use the defined offsets.
+ */
+ gd->arch.omap_boot_params.omap_bootdevice = boot_device =
+ *((u8 *)(rom_params + BOOT_DEVICE_OFFSET));
+
+ gd->arch.omap_boot_params.ch_flags =
+ *((u8 *)(rom_params + CH_FLAGS_OFFSET));
+
+ if ((boot_device >= MMC_BOOT_DEVICES_START) &&
+ (boot_device <= MMC_BOOT_DEVICES_END)) {
+ if ((omap_hw_init_context() ==
+ OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL)) {
+ gd->arch.omap_boot_params.omap_bootmode =
+ *((u8 *)(rom_params + BOOT_MODE_OFFSET));
+ } else {
+ dev_desc = *((u32 *)(rom_params + DEV_DESC_PTR_OFFSET));
+ dev_data = *((u32 *)(dev_desc + DEV_DATA_PTR_OFFSET));
+ gd->arch.omap_boot_params.omap_bootmode =
+ *((u32 *)(dev_data + BOOT_MODE_OFFSET));
+ }
+ }
+}
+
/*
* Routine: s_init
* Description: Does early system init of watchdog, muxing, andclocks
*/
void s_init(void)
{
+ /*
+ * Save the boot parameters passed from romcode.
+ * We cannot delay the saving further than this,
+ * to prevent overwrites.
+ */
+#ifdef CONFIG_SPL_BUILD
+ save_omap_boot_params();
+#endif
init_omap_revision();
hw_data_init();
/* For regular u-boot sdram_init() is called from dram_init() */
sdram_init();
- init_boot_params();
#endif
}
index 37ac0daa70b05c1aedfcaf6a6251117e28ab6ead..7611d0a18bd19624566130c53c87efa85ce69dbc 100644 (file)
#ifndef __ASM_GBL_DATA_H
#define __ASM_GBL_DATA_H
+#ifdef CONFIG_OMAP
+#include <asm/omap_boot.h>
+#endif
+
/* Architecture-specific global data */
struct arch_global_data {
#if defined(CONFIG_FSL_ESDHC)
unsigned long tlb_addr;
unsigned long tlb_size;
#endif
+
+#ifdef CONFIG_OMAP
+ struct omap_boot_parameters omap_boot_params;
+#endif
};
#include <asm-generic/global_data.h>
index 87a95302fa1074ad36b57bdf90d2c5487486f0d7..a803965ac59fe638bab9b7e048105785807b549e 100644 (file)
unsigned char omap_bootdevice;
unsigned char reset_reason;
unsigned char ch_flags;
+ unsigned long omap_bootmode;
};
#endif
index 837b69fdabe79c0f35bbff8382b7b775b3074a5c..eebc9c7cbf1069d2dba5e05c13a857c1189ce321 100644 (file)
#define OMAP_SRAM_SCRATCH_DPLLS_PTR (SRAM_SCRATCH_SPACE_ADDR + 0x18)
#define OMAP_SRAM_SCRATCH_VCORES_PTR (SRAM_SCRATCH_SPACE_ADDR + 0x1C)
#define OMAP_SRAM_SCRATCH_SYS_CTRL (SRAM_SCRATCH_SPACE_ADDR + 0x20)
-#define OMAP_SRAM_SCRATCH_SPACE_END (SRAM_SCRATCH_SPACE_ADDR + 0x24)
+#define OMAP_SRAM_SCRATCH_BOOT_PARAMS (SRAM_SCRATCH_SPACE_ADDR + 0x24)
+#define OMAP5_SRAM_SCRATCH_SPACE_END (SRAM_SCRATCH_SPACE_ADDR + 0x28)
+
#endif /* _OMAP_COMMON_H_ */