Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
---
drivers/mmc/host/bcm2835.c | 56 +---------------------------------------------
1 file changed, 1 insertion(+), 55 deletions(-)
diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
index 82caddc..64a2334 100644
--- a/drivers/mmc/host/bcm2835.c
+++ b/drivers/mmc/host/bcm2835.c
@@ -152,7 +152,6 @@ struct bcm2835_host {
unsigned int blocks; /* remaining PIO blocks */
int irq; /* Device IRQ */
- u32 cmd_quick_poll_retries;
u32 ns_per_fifo_word;
/* cached registers */
@@ -782,62 +781,10 @@ static void bcm2835_finish_command(struct bcm2835_host *host)
struct device *dev = &host->pdev->dev;
struct mmc_command *cmd = host->cmd;
u32 sdcmd;
- u32 retries;
dev_dbg(dev, "finish_command(%x)\n", readl(host->ioaddr + SDCMD));
- /* Poll quickly at first */
-
- retries = host->cmd_quick_poll_retries;
- if (!retries) {
- /* Work out how many polls take 1us by timing 10us */
- struct timeval start, now;
- int us_diff;
-
- retries = 1;
- do {
- int i;
-
- retries *= 2;
-
- do_gettimeofday(&start);
-
- for (i = 0; i < retries; i++) {
- cpu_relax();
- sdcmd = readl(host->ioaddr + SDCMD);
- }
-
- do_gettimeofday(&now);
- us_diff = (now.tv_sec - start.tv_sec) * 1000000 +
- (now.tv_usec - start.tv_usec);
- } while (us_diff < 10);
-
- host->cmd_quick_poll_retries =
- ((retries * us_diff + 9) * CMD_DALLY_US) / 10 + 1;
- retries = 1; /* We've already waited long enough this time */
- }
-
- retries = host->cmd_quick_poll_retries;
- for (sdcmd = readl(host->ioaddr + SDCMD);
- (sdcmd & SDCMD_NEW_FLAG) && !(sdcmd & SDCMD_FAIL_FLAG) && retries;
- retries--) {
- cpu_relax();
- sdcmd = readl(host->ioaddr + SDCMD);
- }
-
- if (!retries) {
- unsigned long wait_max;
-
- /* Wait max 100 ms */
- wait_max = jiffies + msecs_to_jiffies(100);
- while (time_before(jiffies, wait_max)) {
- usleep_range(1, 10);
- sdcmd = readl(host->ioaddr + SDCMD);
- if (!(sdcmd & SDCMD_NEW_FLAG) ||
- (sdcmd & SDCMD_FAIL_FLAG))
- break;
- }
- }
+ sdcmd = bcm2835_read_wait_sdcmd(host, 100, true);
/* Check for errors */
if (sdcmd & SDCMD_NEW_FLAG) {
@@ -1435,7 +1382,6 @@ static int bcm2835_probe(struct platform_device *pdev)
host = mmc_priv(mmc);
host->mmc = mmc;
host->pdev = pdev;
- host->cmd_quick_poll_retries = 0;
host->pio_timeout = msecs_to_jiffies(500);
host->pio_limit = 1;
host->max_delay = 1; /* Warn if over 1ms */
--
1.8.3.1
--
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