mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-27 15:12:21 +00:00
1473f6ac88
Convert the Watchdog driver for AT91SAM9x processors to support the driver model and device tree. Changes "CONFIG_AT91SAM9_WATCHDOG" to new "CONFIG_WDT_AT91" Kconfig option. Signed-off-by: Prasanthi Chellakumar <prasanthi.chellakumar@microchip.com>
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2013 Atmel Corporation
|
|
* Bo Shen <voice.shen@atmel.com>
|
|
*/
|
|
|
|
#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_WDT_AT91)
|
|
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
|