mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-10 23:03:29 +09:00
![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
249 lines
6.2 KiB
C
249 lines
6.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* boot-common.c
|
|
*
|
|
* Common bootmode functions for omap based boards
|
|
*
|
|
* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <ahci.h>
|
|
#include <environment.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;
|
|
|
|
__weak u32 omap_sys_boot_device(void)
|
|
{
|
|
return BOOT_DEVICE_NONE;
|
|
}
|
|
|
|
void save_omap_boot_params(void)
|
|
{
|
|
u32 boot_params = *((u32 *)OMAP_SRAM_SCRATCH_BOOT_PARAMS);
|
|
struct omap_boot_parameters *omap_boot_params;
|
|
int sys_boot_device = 0;
|
|
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 = omap_boot_params->boot_device;
|
|
boot_mode = MMCSD_MODE_UNDEFINED;
|
|
|
|
/* 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
|
|
#ifdef BOOT_DEVICE_QSPI_4
|
|
/*
|
|
* 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 == BOOT_DEVICE_QSPI_4)
|
|
boot_device = BOOT_DEVICE_SPI;
|
|
#endif
|
|
#ifdef CONFIG_TI816X
|
|
/*
|
|
* On PG2.0 and later TI816x the values we get when booting are not the
|
|
* same as on PG1.0, which is what the defines are based on. Update
|
|
* them as needed.
|
|
*/
|
|
if (get_cpu_rev() != 1) {
|
|
if (boot_device == 0x05) {
|
|
omap_boot_params->boot_device = BOOT_DEVICE_NAND;
|
|
boot_device = BOOT_DEVICE_NAND;
|
|
}
|
|
if (boot_device == 0x08) {
|
|
omap_boot_params->boot_device = BOOT_DEVICE_MMC1;
|
|
boot_device = BOOT_DEVICE_MMC1;
|
|
}
|
|
}
|
|
#endif
|
|
/*
|
|
* When booting from peripheral booting, the boot device is not usable
|
|
* as-is (unless there is support for it), so the boot device is instead
|
|
* figured out using the SYS_BOOT pins.
|
|
*/
|
|
switch (boot_device) {
|
|
#if defined(BOOT_DEVICE_UART) && !defined(CONFIG_SPL_YMODEM_SUPPORT)
|
|
case BOOT_DEVICE_UART:
|
|
sys_boot_device = 1;
|
|
break;
|
|
#endif
|
|
#if defined(BOOT_DEVICE_USB) && !defined(CONFIG_SPL_USB_SUPPORT)
|
|
case BOOT_DEVICE_USB:
|
|
sys_boot_device = 1;
|
|
break;
|
|
#endif
|
|
#if defined(BOOT_DEVICE_USBETH) && !defined(CONFIG_SPL_USB_ETHER)
|
|
case BOOT_DEVICE_USBETH:
|
|
sys_boot_device = 1;
|
|
break;
|
|
#endif
|
|
#if defined(BOOT_DEVICE_CPGMAC) && !defined(CONFIG_SPL_ETH_SUPPORT)
|
|
case BOOT_DEVICE_CPGMAC:
|
|
sys_boot_device = 1;
|
|
break;
|
|
#endif
|
|
#if defined(BOOT_DEVICE_DFU) && !defined(CONFIG_SPL_DFU_SUPPORT)
|
|
case BOOT_DEVICE_DFU:
|
|
sys_boot_device = 1;
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
if (sys_boot_device) {
|
|
boot_device = omap_sys_boot_device();
|
|
|
|
/* MMC raw mode will fallback to FS mode. */
|
|
if ((boot_device >= MMC_BOOT_DEVICES_START) &&
|
|
(boot_device <= MMC_BOOT_DEVICES_END))
|
|
boot_mode = MMCSD_MODE_RAW;
|
|
}
|
|
|
|
gd->arch.omap_boot_device = boot_device;
|
|
|
|
/* Boot mode */
|
|
|
|
#ifdef CONFIG_OMAP34XX
|
|
if ((boot_device >= MMC_BOOT_DEVICES_START) &&
|
|
(boot_device <= MMC_BOOT_DEVICES_END)) {
|
|
switch (boot_device) {
|
|
case BOOT_DEVICE_MMC1:
|
|
boot_mode = MMCSD_MODE_FS;
|
|
break;
|
|
case BOOT_DEVICE_MMC2:
|
|
boot_mode = MMCSD_MODE_RAW;
|
|
break;
|
|
}
|
|
}
|
|
#else
|
|
/*
|
|
* If the boot device was dynamically changed and doesn't match what
|
|
* the bootrom initially booted, we cannot use the boot device
|
|
* descriptor to figure out the boot mode.
|
|
*/
|
|
if ((boot_device == omap_boot_params->boot_device) &&
|
|
(boot_device >= MMC_BOOT_DEVICES_START) &&
|
|
(boot_device <= MMC_BOOT_DEVICES_END)) {
|
|
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(const u32 boot_device)
|
|
{
|
|
return gd->arch.omap_boot_mode;
|
|
}
|
|
|
|
void spl_board_init(void)
|
|
{
|
|
#ifdef CONFIG_SPL_SERIAL_SUPPORT
|
|
/* Prepare console output */
|
|
preloader_console_init();
|
|
#endif
|
|
#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
|
|
}
|
|
|
|
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%lX\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");
|
|
env_set("dofastboot", "1");
|
|
env_save();
|
|
return 0;
|
|
}
|
|
#endif
|