mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 00:21:06 +00:00
4bd754d8ab
ROM stores the boot params information in a known location and passes it to SPL. This information needs to be copied very early during boot or else there is a chance of getting corrupted by SPL. So move this boot device detection very early during boot. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
247 lines
6.1 KiB
C
247 lines
6.1 KiB
C
/*
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* boot-common.c
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*
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* Common bootmode functions for omap based boards
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*
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* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <ahci.h>
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#include <spl.h>
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#include <asm/omap_common.h>
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#include <asm/arch/omap.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/sys_proto.h>
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#include <watchdog.h>
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#include <scsi.h>
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#include <i2c.h>
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DECLARE_GLOBAL_DATA_PTR;
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__weak u32 omap_sys_boot_device(void)
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{
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return BOOT_DEVICE_NONE;
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}
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void save_omap_boot_params(void)
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{
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u32 boot_params = *((u32 *)OMAP_SRAM_SCRATCH_BOOT_PARAMS);
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struct omap_boot_parameters *omap_boot_params;
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int sys_boot_device = 0;
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u32 boot_device;
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u32 boot_mode;
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if ((boot_params < NON_SECURE_SRAM_START) ||
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(boot_params > NON_SECURE_SRAM_END))
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return;
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omap_boot_params = (struct omap_boot_parameters *)boot_params;
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boot_device = omap_boot_params->boot_device;
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boot_mode = MMCSD_MODE_UNDEFINED;
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/* Boot device */
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#ifdef BOOT_DEVICE_NAND_I2C
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/*
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* Re-map NAND&I2C boot-device to the "normal" NAND boot-device.
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* Otherwise the SPL boot IF can't handle this device correctly.
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* Somehow booting with Hynix 4GBit NAND H27U4G8 on Siemens
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* Draco leads to this boot-device passed to SPL from the BootROM.
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*/
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if (boot_device == BOOT_DEVICE_NAND_I2C)
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boot_device = BOOT_DEVICE_NAND;
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#endif
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#ifdef BOOT_DEVICE_QSPI_4
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/*
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* We get different values for QSPI_1 and QSPI_4 being used, but
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* don't actually care about this difference. Rather than
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* mangle the later code, if we're coming in as QSPI_4 just
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* change to the QSPI_1 value.
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*/
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if (boot_device == BOOT_DEVICE_QSPI_4)
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boot_device = BOOT_DEVICE_SPI;
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#endif
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#ifdef CONFIG_TI816X
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/*
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* On PG2.0 and later TI816x the values we get when booting are not the
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* same as on PG1.0, which is what the defines are based on. Update
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* them as needed.
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*/
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if (get_cpu_rev() != 1) {
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if (boot_device == 0x05) {
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omap_boot_params->boot_device = BOOT_DEVICE_NAND;
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boot_device = BOOT_DEVICE_NAND;
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}
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if (boot_device == 0x08) {
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omap_boot_params->boot_device = BOOT_DEVICE_MMC1;
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boot_device = BOOT_DEVICE_MMC1;
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}
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}
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#endif
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/*
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* When booting from peripheral booting, the boot device is not usable
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* as-is (unless there is support for it), so the boot device is instead
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* figured out using the SYS_BOOT pins.
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*/
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switch (boot_device) {
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#if defined(BOOT_DEVICE_UART) && !defined(CONFIG_SPL_YMODEM_SUPPORT)
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case BOOT_DEVICE_UART:
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sys_boot_device = 1;
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break;
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#endif
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#if defined(BOOT_DEVICE_USB) && !defined(CONFIG_SPL_USB_SUPPORT)
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case BOOT_DEVICE_USB:
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sys_boot_device = 1;
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break;
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#endif
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#if defined(BOOT_DEVICE_USBETH) && !defined(CONFIG_SPL_USBETH_SUPPORT)
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case BOOT_DEVICE_USBETH:
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sys_boot_device = 1;
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break;
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#endif
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#if defined(BOOT_DEVICE_CPGMAC) && !defined(CONFIG_SPL_ETH_SUPPORT)
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case BOOT_DEVICE_CPGMAC:
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sys_boot_device = 1;
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break;
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#endif
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#if defined(BOOT_DEVICE_DFU) && !defined(CONFIG_SPL_DFU_SUPPORT)
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case BOOT_DEVICE_DFU:
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sys_boot_device = 1;
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break;
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#endif
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}
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if (sys_boot_device) {
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boot_device = omap_sys_boot_device();
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/* MMC raw mode will fallback to FS mode. */
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if ((boot_device >= MMC_BOOT_DEVICES_START) &&
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(boot_device <= MMC_BOOT_DEVICES_END))
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boot_mode = MMCSD_MODE_RAW;
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}
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gd->arch.omap_boot_device = boot_device;
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/* Boot mode */
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#ifdef CONFIG_OMAP34XX
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if ((boot_device >= MMC_BOOT_DEVICES_START) &&
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(boot_device <= MMC_BOOT_DEVICES_END)) {
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switch (boot_device) {
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case BOOT_DEVICE_MMC1:
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boot_mode = MMCSD_MODE_FS;
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break;
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case BOOT_DEVICE_MMC2:
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boot_mode = MMCSD_MODE_RAW;
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break;
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}
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}
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#else
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/*
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* If the boot device was dynamically changed and doesn't match what
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* the bootrom initially booted, we cannot use the boot device
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* descriptor to figure out the boot mode.
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*/
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if ((boot_device == omap_boot_params->boot_device) &&
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(boot_device >= MMC_BOOT_DEVICES_START) &&
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(boot_device <= MMC_BOOT_DEVICES_END)) {
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boot_params = omap_boot_params->boot_device_descriptor;
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if ((boot_params < NON_SECURE_SRAM_START) ||
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(boot_params > NON_SECURE_SRAM_END))
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return;
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boot_params = *((u32 *)(boot_params + DEVICE_DATA_OFFSET));
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if ((boot_params < NON_SECURE_SRAM_START) ||
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(boot_params > NON_SECURE_SRAM_END))
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return;
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boot_mode = *((u32 *)(boot_params + BOOT_MODE_OFFSET));
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if (boot_mode != MMCSD_MODE_FS &&
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boot_mode != MMCSD_MODE_RAW)
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#ifdef CONFIG_SUPPORT_EMMC_BOOT
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boot_mode = MMCSD_MODE_EMMCBOOT;
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#else
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boot_mode = MMCSD_MODE_UNDEFINED;
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#endif
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}
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#endif
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gd->arch.omap_boot_mode = boot_mode;
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#if !defined(CONFIG_TI814X) && !defined(CONFIG_TI816X) && \
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!defined(CONFIG_AM33XX) && !defined(CONFIG_AM43XX)
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/* CH flags */
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gd->arch.omap_ch_flags = omap_boot_params->ch_flags;
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#endif
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}
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#ifdef CONFIG_SPL_BUILD
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u32 spl_boot_device(void)
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{
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return gd->arch.omap_boot_device;
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}
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u32 spl_boot_mode(const u32 boot_device)
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{
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return gd->arch.omap_boot_mode;
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}
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void spl_board_init(void)
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{
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/* Prepare console output */
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preloader_console_init();
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#if defined(CONFIG_SPL_NAND_SUPPORT) || defined(CONFIG_SPL_ONENAND_SUPPORT)
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gpmc_init();
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#endif
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#ifdef CONFIG_SPL_I2C_SUPPORT
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i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
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#endif
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#if defined(CONFIG_AM33XX) && defined(CONFIG_SPL_MUSB_NEW_SUPPORT)
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arch_misc_init();
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#endif
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#if defined(CONFIG_HW_WATCHDOG)
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hw_watchdog_init();
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#endif
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#ifdef CONFIG_AM33XX
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am33xx_spl_board_init();
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#endif
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}
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void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
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{
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typedef void __noreturn (*image_entry_noargs_t)(u32 *);
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image_entry_noargs_t image_entry =
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(image_entry_noargs_t) spl_image->entry_point;
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u32 boot_params = *((u32 *)OMAP_SRAM_SCRATCH_BOOT_PARAMS);
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debug("image entry point: 0x%lX\n", spl_image->entry_point);
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/* Pass the saved boot_params from rom code */
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image_entry((u32 *)boot_params);
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}
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#endif
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#ifdef CONFIG_SCSI_AHCI_PLAT
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void arch_preboot_os(void)
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{
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ahci_reset((void __iomem *)DWC_AHSATA_BASE);
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}
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#endif
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#if defined(CONFIG_USB_FUNCTION_FASTBOOT) && !defined(CONFIG_ENV_IS_NOWHERE)
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int fb_set_reboot_flag(void)
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{
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printf("Setting reboot to fastboot flag ...\n");
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setenv("dofastboot", "1");
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saveenv();
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return 0;
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}
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#endif
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