The ECC_EN and INT_MSK bits of CONFIG1 are not volatile, so it is sufficient to set them once in nfc_nand_init().
Signed-off-by: Benoît Thébaudeau benoit.thebaudeau@advansee.com Cc: Scott Wood scottwood@freescale.com Cc: Stefano Babic sbabic@denx.de --- .../nand_spl/nand_boot_fsl_nfc.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-)
diff --git u-boot-4d3c95f.orig/nand_spl/nand_boot_fsl_nfc.c u-boot-4d3c95f/nand_spl/nand_boot_fsl_nfc.c index b98fe41..059969b 100644 --- u-boot-4d3c95f.orig/nand_spl/nand_boot_fsl_nfc.c +++ u-boot-4d3c95f/nand_spl/nand_boot_fsl_nfc.c @@ -57,7 +57,7 @@ static void nfc_nand_init(void) writew(0x2, &nfc->config);
/* hardware ECC checking and correct */ - config1 = readw(&nfc->config1) | NFC_ECC_EN | NFC_FP_INT; + config1 = readw(&nfc->config1) | NFC_ECC_EN | NFC_INT_MSK | NFC_FP_INT; /* * if spare size is larger that 16 bytes per 512 byte hunk * then use 8 symbol correction instead of 4 @@ -72,7 +72,7 @@ static void nfc_nand_init(void) writew(0x2, &nfc->config);
/* hardware ECC checking and correct */ - writew(NFC_ECC_EN, &nfc->config1); + writew(NFC_ECC_EN | NFC_INT_MSK, &nfc->config1); #endif }
@@ -116,13 +116,10 @@ static void nfc_nand_page_address(unsigned int page_address)
static void nfc_nand_data_output(void) { - int config1 = readw(&nfc->config1); #ifdef NAND_MXC_2K_MULTI_CYCLE int i; #endif
- config1 |= NFC_ECC_EN | NFC_INT_MSK; - writew(config1, &nfc->config1); writew(0, &nfc->buf_addr); writew(NFC_OUTPUT, &nfc->config2); nfc_wait_ready(); @@ -132,9 +129,6 @@ static void nfc_nand_data_output(void) * for pages larger than 512 bytes. */ for (i = 1; i < CONFIG_SYS_NAND_PAGE_SIZE / 512; i++) { - config1 = readw(&nfc->config1); - config1 |= NFC_ECC_EN | NFC_INT_MSK; - writew(config1, &nfc->config1); writew(i, &nfc->buf_addr); writew(NFC_OUTPUT, &nfc->config2); nfc_wait_ready();