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mxc_nand: remove TROP_US_DELAY

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wait_op_done is only called with the same timeout, so
code the timeout into the function itself.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2009-10-21 16:01:02 +02:00
parent f1372055df
commit c110eaf465
1 changed files with 7 additions and 10 deletions
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17
drivers/mtd/nand/mxc_nand.c
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@ -118,9 +118,6 @@ struct mxc_nand_host {
int spare_len;
};
/* Define delays in microsec for NAND device operations */
#define TROP_US_DELAY 2000
/* OOB placement block for use with hardware ecc generation */
static struct nand_ecclayout nandv1_hw_eccoob_smallpage = {
.eccbytes = 5,
@ -185,10 +182,10 @@ static irqreturn_t mxc_nfc_irq(int irq, void *dev_id)
/* This function polls the NANDFC to wait for the basic operation to
* complete by checking the INT bit of config2 register.
*/
static void wait_op_done(struct mxc_nand_host *host, int max_retries,
int useirq)
static void wait_op_done(struct mxc_nand_host *host, int useirq)
{
uint32_t tmp;
int max_retries = 2000;
if (useirq) {
if ((readw(host->regs + NFC_CONFIG2) & NFC_INT) == 0) {
@ -230,7 +227,7 @@ static void send_cmd(struct mxc_nand_host *host, uint16_t cmd, int useirq)
writew(NFC_CMD, host->regs + NFC_CONFIG2);
/* Wait for operation to complete */
wait_op_done(host, TROP_US_DELAY, useirq);
wait_op_done(host, useirq);
}
/* This function sends an address (or partial address) to the
@ -244,7 +241,7 @@ static void send_addr(struct mxc_nand_host *host, uint16_t addr, int islast)
writew(NFC_ADDR, host->regs + NFC_CONFIG2);
/* Wait for operation to complete */
wait_op_done(host, TROP_US_DELAY, islast);
wait_op_done(host, islast);
}
static void send_page(struct mtd_info *mtd, unsigned int ops)
@ -266,7 +263,7 @@ static void send_page(struct mtd_info *mtd, unsigned int ops)
writew(ops, host->regs + NFC_CONFIG2);
/* Wait for operation to complete */
wait_op_done(host, TROP_US_DELAY, true);
wait_op_done(host, true);
}
}
@ -281,7 +278,7 @@ static void send_read_id(struct mxc_nand_host *host)
writew(NFC_ID, host->regs + NFC_CONFIG2);
/* Wait for operation to complete */
wait_op_done(host, TROP_US_DELAY, true);
wait_op_done(host, true);
if (this->options & NAND_BUSWIDTH_16) {
void __iomem *main_buf = host->main_area0;
@ -313,7 +310,7 @@ static uint16_t get_dev_status(struct mxc_nand_host *host)
writew(NFC_STATUS, host->regs + NFC_CONFIG2);
/* Wait for operation to complete */
wait_op_done(host, TROP_US_DELAY, true);
wait_op_done(host, true);
/* Status is placed in first word of main buffer */
/* get status, then recovery area 1 data */