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Diffstat (limited to 'src/drivers/spi')
-rw-r--r--src/drivers/spi/spi_flash.c22
1 files changed, 10 insertions, 12 deletions
diff --git a/src/drivers/spi/spi_flash.c b/src/drivers/spi/spi_flash.c
index 33588d5f47..6d92836c13 100644
--- a/src/drivers/spi/spi_flash.c
+++ b/src/drivers/spi/spi_flash.c
@@ -16,6 +16,7 @@
#include <cpu/x86/smm.h>
#endif
#include "spi_flash_internal.h"
+#include <timer.h>
static void spi_flash_addr(u32 addr, u8 *cmd)
{
@@ -106,27 +107,24 @@ int spi_flash_cmd_poll_bit(struct spi_flash *flash, unsigned long timeout,
u8 cmd, u8 poll_bit)
{
struct spi_slave *spi = flash->spi;
- unsigned long timebase;
int ret;
u8 status;
+ struct mono_time current, end;
+
+ timer_monotonic_get(&current);
+ end = current;
+ mono_time_add_msecs(&end, timeout);
- timebase = timeout;
do {
ret = spi_flash_cmd_read(spi, &cmd, 1, &status, 1);
if (ret)
return -1;
-
if ((status & poll_bit) == 0)
- break;
-
- udelay(500);
- } while (timebase--);
-
- if ((status & poll_bit) == 0)
- return 0;
+ return 0;
+ timer_monotonic_get(&current);
+ } while (!mono_time_after(&current, &end));
- /* Timed out */
- printk(BIOS_DEBUG, "SF: time out!\n");
+ printk(BIOS_DEBUG, "SF: timeout at %ld msec\n",timeout);
return -1;
}