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| author | Prabhakar Kushwaha <prabhakar@freescale.com> | 2014-04-08 19:13:11 +0530 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-04-22 17:58:50 -0700 |
| commit | e278ddcd7fb6550b58030988467ef4b48d51bed8 (patch) | |
| tree | fb1478a74a79ff9faef011b1419a8281f8fe6632 /drivers/mtd | |
| parent | 5abed9c546be4a96db1443cd3abd5f82dfbe5903 (diff) | |
| download | talos-obmc-uboot-e278ddcd7fb6550b58030988467ef4b48d51bed8.tar.gz talos-obmc-uboot-e278ddcd7fb6550b58030988467ef4b48d51bed8.zip | |
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>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi/fsl_espi_spl.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/mtd/spi/fsl_espi_spl.c b/drivers/mtd/spi/fsl_espi_spl.c index e5ac79b952..a55d741a37 100644 --- a/drivers/mtd/spi/fsl_espi_spl.c +++ b/drivers/mtd/spi/fsl_espi_spl.c @@ -20,8 +20,10 @@ void spi_boot(void) { void (*uboot)(void) __noreturn; - u32 offset, code_len; + u32 offset, code_len, copy_len = 0; +#ifndef CONFIG_FSL_CORENET unsigned char *buf = NULL; +#endif struct spi_flash *flash; flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, @@ -56,8 +58,15 @@ void spi_boot(void) code_len = code_len - CONFIG_SPL_MAX_SIZE; #endif /* copy code to DDR */ - spi_flash_read(flash, offset, code_len, - (void *)CONFIG_SYS_SPI_FLASH_U_BOOT_DST); + printf("Loading second stage boot loader "); + while (copy_len <= code_len) { + spi_flash_read(flash, offset + copy_len, 0x2000, + (void *)(CONFIG_SYS_SPI_FLASH_U_BOOT_DST + + copy_len)); + copy_len = copy_len + 0x2000; + putc('.'); + } + /* * Jump to U-Boot image */ |
