From e278ddcd7fb6550b58030988467ef4b48d51bed8 Mon Sep 17 00:00:00 2001 From: Prabhakar Kushwaha Date: Tue, 8 Apr 2014 19:13:11 +0530 Subject: [PATCH] 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 Reviewed-by: York Sun --- drivers/mtd/spi/fsl_espi_spl.c | 15 ++++++++++++--- 1 file 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 */ -- 2.30.2