u-boot/arch/arm/mach-at91/spl.c
Lukasz Majewski d695d66278 spl: eMMC/SD: Provide one __weak spl_boot_mode() function
The goal of this patch is to clean up the code related to choosing SPL
MMC boot mode.

The spl_boot_mode() now is called only in spl_mmc_load_image() function,
which is only compiled in if CONFIG_SPL_MMC_SUPPORT is enabled.

To achieve the goal, all per mach/arch implementations eligible for
unification has been replaced with one __weak implementation.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Stefano Babic <sbabic@denx.de>
Acked-by: Michal Simek <michal.simek@xilinx.com> (For ZynqMP)
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-02-07 22:06:18 -05:00

89 lines
2.1 KiB
C

/*
* Copyright (C) 2013 Atmel Corporation
* Bo Shen <voice.shen@atmel.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_wdt.h>
#include <asm/arch/clk.h>
#include <spl.h>
#if defined(CONFIG_AT91SAM9_WATCHDOG)
void at91_disable_wdt(void) { }
#else
void at91_disable_wdt(void)
{
struct at91_wdt *wdt = (struct at91_wdt *)ATMEL_BASE_WDT;
writel(AT91_WDT_MR_WDDIS, &wdt->mr);
}
#endif
#if defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D3) || \
defined(CONFIG_SAMA5D4)
#include <asm/arch/sama5_boot.h>
struct {
u32 r4;
} bootrom_stash __attribute__((section(".data")));
u32 spl_boot_device(void)
{
u32 dev = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_FROM_OFF) &
ATMEL_SAMA5_BOOT_FROM_MASK;
u32 off = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_DEV_ID_OFF) &
ATMEL_SAMA5_BOOT_DEV_ID_MASK;
#if defined(CONFIG_SYS_USE_MMC) || defined(CONFIG_SD_BOOT)
if (dev == ATMEL_SAMA5_BOOT_FROM_MCI) {
#if defined(CONFIG_SPL_OF_CONTROL)
return BOOT_DEVICE_MMC1;
#else
if (off == 0)
return BOOT_DEVICE_MMC1;
if (off == 1)
return BOOT_DEVICE_MMC2;
printf("ERROR: MMC controller %i not present!\n", dev);
hang();
#endif
}
#endif
#if defined(CONFIG_SYS_USE_SERIALFLASH) || \
defined(CONFIG_SYS_USE_SPIFLASH) || \
defined(CONFIG_SPI_BOOT)
if (dev == ATMEL_SAMA5_BOOT_FROM_SPI)
return BOOT_DEVICE_SPI;
#endif
if (dev == ATMEL_SAMA5_BOOT_FROM_QSPI)
return BOOT_DEVICE_SPI;
if (dev == ATMEL_SAMA5_BOOT_FROM_SMC)
return BOOT_DEVICE_NAND;
if (dev == ATMEL_SAMA5_BOOT_FROM_SAMBA)
return BOOT_DEVICE_USB;
printf("ERROR: SMC/TWI/QSPI boot device not supported!\n"
" Boot device %i, controller number %i\n", dev, off);
return BOOT_DEVICE_NONE;
}
#else
u32 spl_boot_device(void)
{
#if defined(CONFIG_SYS_USE_MMC) || defined(CONFIG_SD_BOOT)
return BOOT_DEVICE_MMC1;
#elif defined(CONFIG_SYS_USE_NANDFLASH) || defined(CONFIG_NAND_BOOT)
return BOOT_DEVICE_NAND;
#elif defined(CONFIG_SYS_USE_SERIALFLASH) || \
defined(CONFIG_SYS_USE_SPIFLASH) || \
defined(CONFIG_SPI_BOOT)
return BOOT_DEVICE_SPI;
#endif
return BOOT_DEVICE_NONE;
}
#endif