Commit e278ddcd7fb6550b58030988467ef4b48d51bed8
Committed by
York Sun
York Sun
1 parent
5abed9c546
Exists in
v2017.01-smarct4x
and in
40 other branches
driver/mtd/spi:Read 8KB data chunk during u-boot load in SPL
SPI driver perform its operation(read/write) on 64KB buffer chunk for data greater than 64KB. This buffer chunk is allocated from system heap. During SPL boot, 768KB of data is read from SPI flash. Here, heap size may not be sufficient enough to full-fill 64KB buffer requirement of SPI driver. So break down u-boot read operation at 8KB of chunk. Also, fix a warning i.e. "unused variable buf" during CONFIG_FSL_CORENET Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Showing 1 changed file with 12 additions and 3 deletions Side-by-side Diff
drivers/mtd/spi/fsl_espi_spl.c
| ... | ... | @@ -20,8 +20,10 @@ |
| 20 | 20 | void spi_boot(void) |
| 21 | 21 | { |
| 22 | 22 | void (*uboot)(void) __noreturn; |
| 23 | - u32 offset, code_len; | |
| 23 | + u32 offset, code_len, copy_len = 0; | |
| 24 | +#ifndef CONFIG_FSL_CORENET | |
| 24 | 25 | unsigned char *buf = NULL; |
| 26 | +#endif | |
| 25 | 27 | struct spi_flash *flash; |
| 26 | 28 | |
| 27 | 29 | flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, |
| ... | ... | @@ -56,8 +58,15 @@ |
| 56 | 58 | code_len = code_len - CONFIG_SPL_MAX_SIZE; |
| 57 | 59 | #endif |
| 58 | 60 | /* copy code to DDR */ |
| 59 | - spi_flash_read(flash, offset, code_len, | |
| 60 | - (void *)CONFIG_SYS_SPI_FLASH_U_BOOT_DST); | |
| 61 | + printf("Loading second stage boot loader "); | |
| 62 | + while (copy_len <= code_len) { | |
| 63 | + spi_flash_read(flash, offset + copy_len, 0x2000, | |
| 64 | + (void *)(CONFIG_SYS_SPI_FLASH_U_BOOT_DST | |
| 65 | + + copy_len)); | |
| 66 | + copy_len = copy_len + 0x2000; | |
| 67 | + putc('.'); | |
| 68 | + } | |
| 69 | + | |
| 61 | 70 | /* |
| 62 | 71 | * Jump to U-Boot image |
| 63 | 72 | */ |