From 8fc2faefdd8bd950fa6ef615ab63f8ec3b6de7e5 Mon Sep 17 00:00:00 2001 From: "Wenyou.Yang@microchip.com" Date: Fri, 21 Jul 2017 13:26:09 +0800 Subject: [PATCH] mtd: spi: sf_dataflash: Add print message while erase error Add the print message to tell us why the erase operation doesn't work. Signed-off-by: Wenyou Yang Reviewed-by: Simon Glass Reviewed-by: Jagan Teki --- drivers/mtd/spi/sf_dataflash.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/spi/sf_dataflash.c b/drivers/mtd/spi/sf_dataflash.c index bcddfa0..e5c0e12 100644 --- a/drivers/mtd/spi/sf_dataflash.c +++ b/drivers/mtd/spi/sf_dataflash.c @@ -134,11 +134,17 @@ static int spi_dataflash_erase(struct udevice *dev, u32 offset, size_t len) debug("%s: erase addr=0x%x len 0x%x\n", dev->name, offset, len); div_u64_rem(len, spi_flash->page_size, &rem); - if (rem) + if (rem) { + printf("%s: len(0x%x) isn't the multiple of page size(0x%x)\n", + dev->name, len, spi_flash->page_size); return -EINVAL; + } div_u64_rem(offset, spi_flash->page_size, &rem); - if (rem) + if (rem) { + printf("%s: offset(0x%x) isn't the multiple of page size(0x%x)\n", + dev->name, offset, spi_flash->page_size); return -EINVAL; + } status = spi_claim_bus(spi); if (status) { -- 2.7.4