mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 18:56:15 +09:00
a5f88877af
This patch adds runtime boot-device detection to SPL U-Boot. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Luka Perkov <luka.perkov@sartura.hr> Cc: Dirk Eibach <dirk.eibach@gdsys.cc> Cc: Phil Sutter <phil@nwl.cc> Cc: Kevin Smith <kevin.smith@elecsyscorp.com>
108 lines
2.1 KiB
C
108 lines
2.1 KiB
C
/*
|
|
* Copyright (C) 2014-2016 Stefan Roese <sr@denx.de>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <debug_uart.h>
|
|
#include <fdtdec.h>
|
|
#include <spl.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/cpu.h>
|
|
#include <asm/arch/soc.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static u32 get_boot_device(void)
|
|
{
|
|
u32 val;
|
|
u32 boot_device;
|
|
|
|
val = readl(CONFIG_SAR_REG); /* SAR - Sample At Reset */
|
|
boot_device = (val & BOOT_DEV_SEL_MASK) >> BOOT_DEV_SEL_OFFS;
|
|
switch (boot_device) {
|
|
#ifdef CONFIG_SPL_MMC_SUPPORT
|
|
case BOOT_FROM_MMC:
|
|
case BOOT_FROM_MMC_ALT:
|
|
return BOOT_DEVICE_MMC1;
|
|
#endif
|
|
case BOOT_FROM_UART:
|
|
return BOOT_DEVICE_UART;
|
|
case BOOT_FROM_SPI:
|
|
default:
|
|
return BOOT_DEVICE_SPI;
|
|
};
|
|
}
|
|
|
|
u32 spl_boot_device(void)
|
|
{
|
|
return get_boot_device();
|
|
}
|
|
|
|
#ifdef CONFIG_SPL_MMC_SUPPORT
|
|
u32 spl_boot_mode(void)
|
|
{
|
|
return MMCSD_MODE_RAW;
|
|
}
|
|
#endif
|
|
|
|
void board_init_f(ulong dummy)
|
|
{
|
|
int ret;
|
|
|
|
/*
|
|
* Pin muxing needs to be done before UART output, since
|
|
* on A38x the UART pins need some re-muxing for output
|
|
* to work.
|
|
*/
|
|
board_early_init_f();
|
|
|
|
/* Example code showing how to enable the debug UART on MVEBU */
|
|
#ifdef EARLY_UART
|
|
/*
|
|
* Debug UART can be used from here if required:
|
|
*
|
|
* debug_uart_init();
|
|
* printch('a');
|
|
* printhex8(0x1234);
|
|
* printascii("string");
|
|
*/
|
|
#endif
|
|
|
|
ret = spl_init();
|
|
if (ret) {
|
|
debug("spl_init() failed: %d\n", ret);
|
|
hang();
|
|
}
|
|
|
|
/* Use special translation offset for SPL */
|
|
dm_set_translation_offset(0xd0000000 - 0xf1000000);
|
|
|
|
preloader_console_init();
|
|
|
|
timer_init();
|
|
|
|
/* First init the serdes PHY's */
|
|
serdes_phy_config();
|
|
|
|
/* Setup DDR */
|
|
ddr3_init();
|
|
|
|
#ifdef CONFIG_MVEBU_BOOTROM_UARTBOOT
|
|
/*
|
|
* Return to the BootROM to continue the Marvell xmodem
|
|
* UART boot protocol. As initiated by the kwboot tool.
|
|
*
|
|
* This can only be done by the BootROM and not by the
|
|
* U-Boot SPL infrastructure, since the beginning of the
|
|
* image is already read and interpreted by the BootROM.
|
|
* SPL has no chance to receive this information. So we
|
|
* need to return to the BootROM to enable this xmodem
|
|
* UART download.
|
|
*/
|
|
return_to_bootrom();
|
|
#endif
|
|
}
|