u-boot/arch/arm/mach-mvebu/spl.c
Simon Glass 401d1c4f5d common: Drop asm/global_data.h from common header
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-02-02 15:33:42 -05:00

160 lines
3.7 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2014-2016 Stefan Roese <sr@denx.de>
*/
#include <common.h>
#include <dm.h>
#include <debug_uart.h>
#include <fdtdec.h>
#include <hang.h>
#include <init.h>
#include <log.h>
#include <spl.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
static u32 get_boot_device(void)
{
u32 val;
u32 boot_device;
/*
* First check, if UART boot-mode is active. This can only
* be done, via the bootrom error register. Here the
* MSB marks if the UART mode is active.
*/
val = readl(CONFIG_BOOTROM_ERR_REG);
boot_device = (val & BOOTROM_ERR_MODE_MASK) >> BOOTROM_ERR_MODE_OFFS;
debug("BOOTROM_REG=0x%08x boot_device=0x%x\n", val, boot_device);
if (boot_device == BOOTROM_ERR_MODE_UART)
return BOOT_DEVICE_UART;
#ifdef CONFIG_ARMADA_38X
/*
* If the bootrom error code contains any other than zeros it's an
* error condition and the bootROM has fallen back to UART boot
*/
boot_device = (val & BOOTROM_ERR_CODE_MASK) >> BOOTROM_ERR_CODE_OFFS;
if (boot_device)
return BOOT_DEVICE_UART;
#endif
/*
* Now check the SAR register for the strapped boot-device
*/
val = readl(CONFIG_SAR_REG); /* SAR - Sample At Reset */
boot_device = (val & BOOT_DEV_SEL_MASK) >> BOOT_DEV_SEL_OFFS;
debug("SAR_REG=0x%08x boot_device=0x%x\n", val, boot_device);
switch (boot_device) {
#if defined(CONFIG_ARMADA_38X)
case BOOT_FROM_NAND:
return BOOT_DEVICE_NAND;
#endif
#ifdef CONFIG_SPL_MMC_SUPPORT
case BOOT_FROM_MMC:
case BOOT_FROM_MMC_ALT:
return BOOT_DEVICE_MMC1;
#endif
case BOOT_FROM_UART:
#ifdef BOOT_FROM_UART_ALT
case BOOT_FROM_UART_ALT:
#endif
return BOOT_DEVICE_UART;
#ifdef BOOT_FROM_SATA
case BOOT_FROM_SATA:
case BOOT_FROM_SATA_ALT:
return BOOT_DEVICE_SATA;
#endif
case BOOT_FROM_SPI:
default:
return BOOT_DEVICE_SPI;
};
}
u32 spl_boot_device(void)
{
return get_boot_device();
}
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
/*
* Use special translation offset for SPL. This needs to be
* configured *before* spl_init() is called as this function
* calls dm_init() which calls the bind functions of the
* device drivers. Here the base address needs to be configured
* (translated) correctly.
*/
gd->translation_offset = 0xd0000000 - 0xf1000000;
ret = spl_init();
if (ret) {
debug("spl_init() failed: %d\n", ret);
hang();
}
preloader_console_init();
timer_init();
/* Armada 375 does not support SerDes and DDR3 init yet */
#if !defined(CONFIG_ARMADA_375)
/* First init the serdes PHY's */
serdes_phy_config();
/* Setup DDR */
ddr3_init();
#endif
/* Initialize Auto Voltage Scaling */
mv_avs_init();
/* Update read timing control for PCIe */
mv_rtc_config();
/*
* 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.
*
* If booting from NAND lets let the BootROM load the
* rest of the bootloader.
*/
switch (get_boot_device()) {
case BOOT_DEVICE_UART:
#if defined(CONFIG_ARMADA_38X)
case BOOT_DEVICE_NAND:
#endif
return_to_bootrom();
}
}