From 630cf2e7628502b410622fcfa72bd553a94dfa93 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 15 Aug 2015 11:38:33 +0200 Subject: [PATCH] sunxi_nand_spl: We only need to reset the nand chip once There is no need to reset the nand chip for every ecc-block read. Signed-off-by: Hans de Goede Acked-by: Ian Campbell --- drivers/mtd/nand/sunxi_nand_spl.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/mtd/nand/sunxi_nand_spl.c b/drivers/mtd/nand/sunxi_nand_spl.c index 46654e4ef6..56c0be02f5 100644 --- a/drivers/mtd/nand/sunxi_nand_spl.c +++ b/drivers/mtd/nand/sunxi_nand_spl.c @@ -162,6 +162,16 @@ void nand_init(void) NFC_CTL_RESET, MAX_RETRIES)) { printf("Couldn't initialize nand\n"); } + + /* reset NAND */ + writel(NFC_SEND_CMD1 | NFC_WAIT_FLAG | NAND_CMD_RESET, + SUNXI_NFC_BASE + NFC_CMD); + + if (!check_value(SUNXI_NFC_BASE + NFC_ST, NFC_CMD_INT_FLAG, + MAX_RETRIES)) { + printf("Error timeout waiting for nand reset\n"); + return; + } } static void nand_read_page(unsigned int real_addr, dma_addr_t dst, @@ -223,16 +233,6 @@ static void nand_read_page(unsigned int real_addr, dma_addr_t dst, return; } - /* set CMD */ - writel(NFC_SEND_CMD1 | NFC_WAIT_FLAG | NAND_CMD_RESET, - SUNXI_NFC_BASE + NFC_CMD); - - if (!check_value(SUNXI_NFC_BASE + NFC_ST, NFC_CMD_INT_FLAG, - MAX_RETRIES)) { - printf("Error while initilizing command interrupt\n"); - return; - } - page = real_addr / CONFIG_NAND_SUNXI_SPL_PAGE_SIZE; column = real_addr % CONFIG_NAND_SUNXI_SPL_PAGE_SIZE; -- 2.39.5