mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 11:18:28 +00:00
54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2014 Panasonic Corporation
|
||
|
|
* Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <spl.h>
|
||
|
|
#include <nand.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <../drivers/mtd/nand/denali.h>
|
||
|
|
|
||
|
|
static void nand_denali_wp_disable(void)
|
||
|
|
{
|
||
|
|
#ifdef CONFIG_NAND_DENALI
|
||
|
|
/*
|
||
|
|
* Since the boot rom enables the write protection for NAND boot mode,
|
||
|
|
* it must be disabled somewhere for "nand write", "nand erase", etc.
|
||
|
|
* The workaround is here to not disturb the Denali NAND controller
|
||
|
|
* driver just for a really SoC-specific thing.
|
||
|
|
*/
|
||
|
|
void __iomem *denali_reg = (void __iomem *)CONFIG_SYS_NAND_REGS_BASE;
|
||
|
|
|
||
|
|
writel(WRITE_PROTECT__FLAG, denali_reg + WRITE_PROTECT);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
int board_late_init(void)
|
||
|
|
{
|
||
|
|
puts("MODE: ");
|
||
|
|
|
||
|
|
switch (spl_boot_device()) {
|
||
|
|
case BOOT_DEVICE_MMC1:
|
||
|
|
printf("eMMC Boot\n");
|
||
|
|
setenv("bootmode", "emmcboot");
|
||
|
|
break;
|
||
|
|
case BOOT_DEVICE_NAND:
|
||
|
|
printf("NAND Boot\n");
|
||
|
|
setenv("bootmode", "nandboot");
|
||
|
|
nand_denali_wp_disable();
|
||
|
|
break;
|
||
|
|
case BOOT_DEVICE_NOR:
|
||
|
|
printf("NOR Boot\n");
|
||
|
|
setenv("bootmode", "norboot");
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
printf("Unsupported Boot Mode\n");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|