2 * Copyright 2013 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
11 #define ESPI_BOOT_IMAGE_SIZE 0x48
12 #define ESPI_BOOT_IMAGE_ADDR 0x50
13 #define CONFIG_CFG_DATA_SECTOR 0
15 void spi_spl_load_image(uint32_t offs
, unsigned int size
, void *vdst
)
17 struct spi_flash
*flash
;
19 flash
= spi_flash_probe(CONFIG_ENV_SPI_BUS
, CONFIG_ENV_SPI_CS
,
20 CONFIG_ENV_SPI_MAX_HZ
, CONFIG_ENV_SPI_MODE
);
22 puts("\nspi_flash_probe failed");
26 spi_flash_read(flash
, offs
, size
, vdst
);
30 * The main entry for SPI booting. It's necessary that SDRAM is already
31 * configured and available since this code loads the main U-Boot image
32 * from SPI into SDRAM and starts it from there.
36 void (*uboot
)(void) __noreturn
;
37 u32 offset
, code_len
, copy_len
= 0;
38 #ifndef CONFIG_FSL_CORENET
39 unsigned char *buf
= NULL
;
41 struct spi_flash
*flash
;
43 flash
= spi_flash_probe(CONFIG_ENV_SPI_BUS
, CONFIG_ENV_SPI_CS
,
44 CONFIG_ENV_SPI_MAX_HZ
, CONFIG_ENV_SPI_MODE
);
46 puts("\nspi_flash_probe failed");
50 #ifdef CONFIG_FSL_CORENET
51 offset
= CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS
;
52 code_len
= CONFIG_SYS_SPI_FLASH_U_BOOT_SIZE
;
55 * Load U-Boot image from SPI flash into RAM
57 buf
= malloc(flash
->page_size
);
59 puts("\nmalloc failed");
62 memset(buf
, 0, flash
->page_size
);
64 spi_flash_read(flash
, CONFIG_CFG_DATA_SECTOR
,
65 flash
->page_size
, (void *)buf
);
66 offset
= *(u32
*)(buf
+ ESPI_BOOT_IMAGE_ADDR
);
68 offset
+= CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS
;
69 /* Get the code size from offset 0x48 */
70 code_len
= *(u32
*)(buf
+ ESPI_BOOT_IMAGE_SIZE
);
72 code_len
= code_len
- CONFIG_SPL_MAX_SIZE
;
74 /* copy code to DDR */
75 printf("Loading second stage boot loader ");
76 while (copy_len
<= code_len
) {
77 spi_flash_read(flash
, offset
+ copy_len
, 0x2000,
78 (void *)(CONFIG_SYS_SPI_FLASH_U_BOOT_DST
80 copy_len
= copy_len
+ 0x2000;
85 * Jump to U-Boot image
87 flush_cache(CONFIG_SYS_SPI_FLASH_U_BOOT_DST
, code_len
);
88 uboot
= (void *)CONFIG_SYS_SPI_FLASH_U_BOOT_START
;