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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2019 Broadcom Ltd.
*/
#include <common.h>
#include <nand.h>
#include <mmc.h>
#include "boot_flash.h"
#ifdef CONFIG_MMC
#define MMC_DEV_NUM 0
#define MMC_BOOT_HWPART 1
#define MMC_USERDATA_PART 0
#endif
/* for emmc and spi flash*/
void* flash_dev;
int boot_flash_init(void)
{
flash_dev = NULL;
#ifdef CONFIG_NAND
nand_init();
#endif
#if defined(CONFIG_MMC) && defined(CONFIG_SUPPORT_EMMC_BOOT)
struct mmc *mmc;
int ret;
ret = mmc_initialize(NULL);
if(ret) {
printf("MMC Initialization Failed!!\n");
hang();
}
mmc = find_mmc_device(MMC_DEV_NUM);
mmc_init(mmc);
#endif
#if defined(CONFIG_SPL_SPI_FLASH_SUPPORT)
struct udevice *dev;
struct mtd_info *mtd;
int ret = -1;
ret = uclass_get_device_by_driver(UCLASS_SPI_FLASH, DM_GET_DRIVER(spi_flash_std), &dev);
if (ret){
debug("SPI NOR failed to initialize. (error %d)\n", ret);
hang();
}
mtd = get_mtd_device_nm(SPIFLASH_MTDNAME);
if (IS_ERR_OR_NULL(mtd)){
printf("%s:MTD device %s not found, ret %ld\n",__func__, SPIFLASH_MTDNAME,
PTR_ERR(mtd));
hang();
}
else
flash_dev = mtd;
#endif
return 0;
}
/* return number of bytes read if success, negative value if fail */
int read_boot_device(uint32_t address, void *data, int len)
{
int ret;
#if defined(CONFIG_SPL_SPI_FLASH_SUPPORT)
size_t retlen;
debug("read_boot_device:address=%d,len=%d\n",address,len);
if ( flash_dev != NULL){
ret = mtd_read(flash_dev, address, len, &retlen, data);
if ( ret == 0)
ret = retlen;
else{
debug("%s: Failed to read from SPI flash (err=%d)\n", __func__, ret);
ret = -1;
}
}
else
ret = -1;
#endif
#ifdef CONFIG_NAND
/* unfortunately nand spl api does not return the length.. */
ret = nand_spl_load_image(address, len, data);
if (ret == 0)
ret = len;
else
ret = -1;
#endif
#if defined(CONFIG_MMC) && defined(CONFIG_SUPPORT_EMMC_BOOT)
blk_select_hwpart_devnum(IF_TYPE_MMC, MMC_DEV_NUM, MMC_BOOT_HWPART);
/* Unfortunately mmc_spl_load_image has no return code */
mmc_spl_load_image(address, len, data);
ret = len;
blk_select_hwpart_devnum(IF_TYPE_MMC, MMC_DEV_NUM, MMC_USERDATA_PART);
#endif
#if defined(CONFIG_SPL_XIP_SUPPORT)
memcpy((uint8_t*)data, (uint8_t*)(address+NOR_XIP_BASE_ADDR), len);
#endif
return ret;
}
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