mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-04 14:00:19 +00:00
ef19131b80
Currently, if MTD NOR is enabled then U-Boot tries to issue flash
commands even when CFI flash DT node is not present. This causes
access fault on RISC-V emulators or ISS which do not emulate CFI
flash. To handle this issue, we implement is_flash_available() for
qemu-riscv board which will return 1 only if CFI flash DT node is
present.
Fixes: d248627f9d42 ("riscv: qemu: Enable MTD NOR flash support")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Rick Chen <rick@andestech.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
93 lines
1.7 KiB
C
93 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <dm/ofnode.h>
|
|
#include <env.h>
|
|
#include <fdtdec.h>
|
|
#include <image.h>
|
|
#include <log.h>
|
|
#include <spl.h>
|
|
#include <init.h>
|
|
#include <virtio_types.h>
|
|
#include <virtio.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#if IS_ENABLED(CONFIG_MTD_NOR_FLASH)
|
|
int is_flash_available(void)
|
|
{
|
|
if (!ofnode_equal(ofnode_by_compatible(ofnode_null(), "cfi-flash"),
|
|
ofnode_null()))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int board_init(void)
|
|
{
|
|
/*
|
|
* Make sure virtio bus is enumerated so that peripherals
|
|
* on the virtio bus can be discovered by their drivers
|
|
*/
|
|
virtio_init();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_late_init(void)
|
|
{
|
|
ulong kernel_start;
|
|
ofnode chosen_node;
|
|
int ret;
|
|
|
|
chosen_node = ofnode_path("/chosen");
|
|
if (!ofnode_valid(chosen_node)) {
|
|
debug("No chosen node found, can't get kernel start address\n");
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_ARCH_RV64I
|
|
ret = ofnode_read_u64(chosen_node, "riscv,kernel-start",
|
|
(u64 *)&kernel_start);
|
|
#else
|
|
ret = ofnode_read_u32(chosen_node, "riscv,kernel-start",
|
|
(u32 *)&kernel_start);
|
|
#endif
|
|
if (ret) {
|
|
debug("Can't find kernel start address in device tree\n");
|
|
return 0;
|
|
}
|
|
|
|
env_set_hex("kernel_start", kernel_start);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_SPL
|
|
u32 spl_boot_device(void)
|
|
{
|
|
/* RISC-V QEMU only supports RAM as SPL boot device */
|
|
return BOOT_DEVICE_RAM;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_SPL_LOAD_FIT
|
|
int board_fit_config_name_match(const char *name)
|
|
{
|
|
/* boot using first FIT config */
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void *board_fdt_blob_setup(int *err)
|
|
{
|
|
*err = 0;
|
|
/* Stored the DTB address there during our init */
|
|
return (void *)(ulong)gd->arch.firmware_fdt_addr;
|
|
}
|