mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-09-30 03:12:07 +00:00
0a704924f3
J721E allows for booting from primary or backup boot media. Both media can be chosen individually based on switch settings. ROM looks for a valid image in primary boot media, if not found then looks in backup boot media. In order to pass this boot media information to boot loader, ROM stores a value at a particular address. Add support for reading this information and determining the boot media correctly. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* J721E: SoC specific initialization
|
|
*
|
|
* Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
|
|
* Lokesh Vutla <lokeshvutla@ti.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <spl.h>
|
|
#include <asm/io.h>
|
|
#include <asm/armv7_mpu.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include "common.h"
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
void board_init_f(ulong dummy)
|
|
{
|
|
/*
|
|
* ToDo:
|
|
* - Store boot rom index.
|
|
* - unlock mmr.
|
|
*/
|
|
|
|
#ifdef CONFIG_CPU_V7R
|
|
setup_k3_mpu_regions();
|
|
#endif
|
|
|
|
/* Init DM early */
|
|
spl_early_init();
|
|
|
|
/* Prepare console output */
|
|
preloader_console_init();
|
|
}
|
|
|
|
u32 spl_boot_mode(const u32 boot_device)
|
|
{
|
|
switch (boot_device) {
|
|
case BOOT_DEVICE_MMC1:
|
|
return MMCSD_MODE_EMMCBOOT;
|
|
case BOOT_DEVICE_MMC2:
|
|
return MMCSD_MODE_FS;
|
|
default:
|
|
return MMCSD_MODE_RAW;
|
|
}
|
|
}
|
|
|
|
static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat)
|
|
{
|
|
|
|
u32 bootmode = (wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
|
|
WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT;
|
|
|
|
bootmode |= (main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) <<
|
|
BOOT_MODE_B_SHIFT;
|
|
|
|
if (bootmode == BOOT_DEVICE_OSPI || bootmode == BOOT_DEVICE_QSPI)
|
|
bootmode = BOOT_DEVICE_SPI;
|
|
|
|
if (bootmode == BOOT_DEVICE_MMC2) {
|
|
u32 port = (main_devstat &
|
|
MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK) >>
|
|
MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT;
|
|
if (port == 0x0)
|
|
bootmode = BOOT_DEVICE_MMC1;
|
|
}
|
|
|
|
return bootmode;
|
|
}
|
|
|
|
u32 spl_boot_device(void)
|
|
{
|
|
u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
|
|
u32 main_devstat;
|
|
|
|
if (wkup_devstat & WKUP_DEVSTAT_MCU_OMLY_MASK) {
|
|
printf("ERROR: MCU only boot is not yet supported\n");
|
|
return BOOT_DEVICE_RAM;
|
|
}
|
|
|
|
/* MAIN CTRL MMR can only be read if MCU ONLY is 0 */
|
|
main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);
|
|
|
|
/* ToDo: Add support for backup boot media */
|
|
return __get_primary_bootmedia(main_devstat, wkup_devstat);
|
|
}
|
|
#endif
|