mirror of
https://github.com/Fishwaldo/u-boot.git
synced 2025-03-30 02:51:33 +00:00
60c7c30aa0
This introduces OMAP3 support for the common omap boot code, as well as a major cleanup of the common omap boot code. First, the omap_boot_parameters structure becomes platform-specific, since its definition differs a bit across omap platforms. The offsets are removed as well since it is U-Boot's coding style to use structures for mapping such kind of data (in the sense that it is similar to registers). It is correct to assume that romcode structure encoding is the same as U-Boot, given the description of these structures in the TRMs. The original address provided by the bootrom is passed to the U-Boot binary instead of a duplicate of the structure stored in global data. This allows to have only the relevant (boot device and mode) information stored in global data. It is also expected that the address where the bootrom stores that information is not overridden by the U-Boot SPL or U-Boot. The save_omap_boot_params is expected to handle all special cases where the data provided by the bootrom cannot be used as-is, so that spl_boot_device and spl_boot_mode only return the data from global data. All of this is only relevant when the U-Boot SPL is used. In cases it is not, save_boot_params should fallback to its weak (or board-specific) definition. save_omap_boot_params should not be called in that context either. Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
196 lines
4.5 KiB
C
196 lines
4.5 KiB
C
/*
|
|
* boot-common.c
|
|
*
|
|
* Common bootmode functions for omap based boards
|
|
*
|
|
* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <ahci.h>
|
|
#include <spl.h>
|
|
#include <asm/omap_common.h>
|
|
#include <asm/arch/omap.h>
|
|
#include <asm/arch/mmc_host_def.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <watchdog.h>
|
|
#include <scsi.h>
|
|
#include <i2c.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
void save_omap_boot_params(void)
|
|
{
|
|
u32 boot_params = *((u32 *)OMAP_SRAM_SCRATCH_BOOT_PARAMS);
|
|
struct omap_boot_parameters *omap_boot_params;
|
|
u32 boot_device;
|
|
u32 boot_mode;
|
|
|
|
if ((boot_params < NON_SECURE_SRAM_START) ||
|
|
(boot_params > NON_SECURE_SRAM_END))
|
|
return;
|
|
|
|
omap_boot_params = (struct omap_boot_parameters *)boot_params;
|
|
|
|
/* Boot device */
|
|
|
|
boot_device = omap_boot_params->boot_device;
|
|
|
|
#ifdef BOOT_DEVICE_NAND_I2C
|
|
/*
|
|
* Re-map NAND&I2C boot-device to the "normal" NAND boot-device.
|
|
* Otherwise the SPL boot IF can't handle this device correctly.
|
|
* Somehow booting with Hynix 4GBit NAND H27U4G8 on Siemens
|
|
* Draco leads to this boot-device passed to SPL from the BootROM.
|
|
*/
|
|
if (boot_device == BOOT_DEVICE_NAND_I2C)
|
|
boot_device = BOOT_DEVICE_NAND;
|
|
#endif
|
|
#if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
|
|
/*
|
|
* We get different values for QSPI_1 and QSPI_4 being used, but
|
|
* don't actually care about this difference. Rather than
|
|
* mangle the later code, if we're coming in as QSPI_4 just
|
|
* change to the QSPI_1 value.
|
|
*/
|
|
if (boot_device == 11)
|
|
boot_device = BOOT_DEVICE_SPI;
|
|
#endif
|
|
|
|
gd->arch.omap_boot_device = boot_device;
|
|
|
|
/* Boot mode */
|
|
|
|
boot_mode = MMCSD_MODE_UNDEFINED;
|
|
|
|
if ((boot_device >= MMC_BOOT_DEVICES_START) &&
|
|
(boot_device <= MMC_BOOT_DEVICES_END)) {
|
|
#ifdef CONFIG_OMAP34XX
|
|
switch (boot_device) {
|
|
case BOOT_DEVICE_MMC1:
|
|
boot_mode = MMCSD_MODE_FS;
|
|
break;
|
|
case BOOT_DEVICE_MMC2:
|
|
boot_mode = MMCSD_MODE_RAW;
|
|
break;
|
|
}
|
|
#else
|
|
boot_params = omap_boot_params->boot_device_descriptor;
|
|
if ((boot_params < NON_SECURE_SRAM_START) ||
|
|
(boot_params > NON_SECURE_SRAM_END))
|
|
return;
|
|
|
|
boot_params = *((u32 *)(boot_params + DEVICE_DATA_OFFSET));
|
|
if ((boot_params < NON_SECURE_SRAM_START) ||
|
|
(boot_params > NON_SECURE_SRAM_END))
|
|
return;
|
|
|
|
boot_mode = *((u32 *)(boot_params + BOOT_MODE_OFFSET));
|
|
|
|
if (boot_mode != MMCSD_MODE_FS &&
|
|
boot_mode != MMCSD_MODE_RAW)
|
|
#ifdef CONFIG_SUPPORT_EMMC_BOOT
|
|
boot_mode = MMCSD_MODE_EMMCBOOT
|
|
#else
|
|
boot_mode = MMCSD_MODE_UNDEFINED;
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
gd->arch.omap_boot_mode = boot_mode;
|
|
|
|
#if !defined(CONFIG_TI814X) && !defined(CONFIG_TI816X) && \
|
|
!defined(CONFIG_AM33XX) && !defined(CONFIG_AM43XX)
|
|
|
|
/* CH flags */
|
|
|
|
gd->arch.omap_ch_flags = omap_boot_params->ch_flags;
|
|
#endif
|
|
}
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
u32 spl_boot_device(void)
|
|
{
|
|
return gd->arch.omap_boot_device;
|
|
}
|
|
|
|
u32 spl_boot_mode(void)
|
|
{
|
|
return gd->arch.omap_boot_mode;
|
|
}
|
|
|
|
void spl_board_init(void)
|
|
{
|
|
/*
|
|
* Save the boot parameters passed from romcode.
|
|
* We cannot delay the saving further than this,
|
|
* to prevent overwrites.
|
|
*/
|
|
save_omap_boot_params();
|
|
|
|
/* Prepare console output */
|
|
preloader_console_init();
|
|
|
|
#if defined(CONFIG_SPL_NAND_SUPPORT) || defined(CONFIG_SPL_ONENAND_SUPPORT)
|
|
gpmc_init();
|
|
#endif
|
|
#ifdef CONFIG_SPL_I2C_SUPPORT
|
|
i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
|
|
#endif
|
|
#if defined(CONFIG_AM33XX) && defined(CONFIG_SPL_MUSB_NEW_SUPPORT)
|
|
arch_misc_init();
|
|
#endif
|
|
#if defined(CONFIG_HW_WATCHDOG)
|
|
hw_watchdog_init();
|
|
#endif
|
|
#ifdef CONFIG_AM33XX
|
|
am33xx_spl_board_init();
|
|
#endif
|
|
}
|
|
|
|
int board_mmc_init(bd_t *bis)
|
|
{
|
|
switch (spl_boot_device()) {
|
|
case BOOT_DEVICE_MMC1:
|
|
omap_mmc_init(0, 0, 0, -1, -1);
|
|
break;
|
|
case BOOT_DEVICE_MMC2:
|
|
case BOOT_DEVICE_MMC2_2:
|
|
omap_mmc_init(1, 0, 0, -1, -1);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
|
|
{
|
|
typedef void __noreturn (*image_entry_noargs_t)(u32 *);
|
|
image_entry_noargs_t image_entry =
|
|
(image_entry_noargs_t) spl_image->entry_point;
|
|
|
|
u32 boot_params = *((u32 *)OMAP_SRAM_SCRATCH_BOOT_PARAMS);
|
|
|
|
debug("image entry point: 0x%X\n", spl_image->entry_point);
|
|
/* Pass the saved boot_params from rom code */
|
|
image_entry((u32 *)boot_params);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_SCSI_AHCI_PLAT
|
|
void arch_preboot_os(void)
|
|
{
|
|
ahci_reset((void __iomem *)DWC_AHSATA_BASE);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_USB_FUNCTION_FASTBOOT) && !defined(CONFIG_ENV_IS_NOWHERE)
|
|
int fb_set_reboot_flag(void)
|
|
{
|
|
printf("Setting reboot to fastboot flag ...\n");
|
|
setenv("dofastboot", "1");
|
|
saveenv();
|
|
return 0;
|
|
}
|
|
#endif
|