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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 <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Hans de Goede 2015-08-15 11:38:33 +02:00
parent 10d069b797
commit 630cf2e762
1 changed files with 10 additions and 10 deletions
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20
drivers/mtd/nand/sunxi_nand_spl.c
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@ -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;