[U-Boot] [PATCH v3 4/7]Timer: Allow reset_timer() only for systems with low resolution timers
Graeme Russ
graeme.russ at gmail.com
Sat Jul 16 11:35:56 CEST 2011
Signed-off-by: Graeme Russ <graeme.russ at gmail.com>
---
Changes since v2:
- Added Signed-off-by
Changes since v1 ((WIP) [Timer]API Rewrite):
- Rebased to 68d4230c3ccce96a72c5b99e48399bf1796fe3c6
- Introduce new #define CONFIG_SYS_LOW_RES_TIMER
drivers/block/mg_disk.c | 2 ++
drivers/mtd/cfi_flash.c | 4 ++++
include/configs/PCI5441.h | 1 +
include/configs/PK1C20.h | 1 +
include/configs/nios2-generic.h | 1 +
5 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index b74307a..921bce9 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -91,7 +91,9 @@ static unsigned int mg_wait (u32 expect, u32 msec)
u32 from, cur, err;
err = MG_ERR_NONE;
+#ifdef CONFIG_SYS_LOW_RES_TIMER
reset_timer();
+#endif
from = get_timer(0);
status = readb(mg_base() + MG_REG_STATUS);
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index 929f9a9..ac91dfd 100644
--- a/drivers/mtd/cfi_flash.c
+++ b/drivers/mtd/cfi_flash.c
@@ -573,7 +573,9 @@ static int flash_status_check (flash_info_t * info, flash_sect_t sector,
#endif
/* Wait for command completion */
+#ifdef CONFIG_SYS_LOW_RES_TIMER
reset_timer();
+#endif
start = get_timer (0);
while (flash_is_busy (info, sector)) {
if (get_timer (start) > tout) {
@@ -662,7 +664,9 @@ static int flash_status_poll(flash_info_t *info, void *src, void *dst,
#endif
/* Wait for command completion */
+#ifdef CONFIG_SYS_LOW_RES_TIMER
reset_timer();
+#endif
start = get_timer(0);
while (1) {
switch (info->portwidth) {
diff --git a/include/configs/PCI5441.h b/include/configs/PCI5441.h
index 70775e7..ae5bc2e 100644
--- a/include/configs/PCI5441.h
+++ b/include/configs/PCI5441.h
@@ -118,6 +118,7 @@
* TMRMS represents the desired mecs per tick (msecs per interrupt).
*----------------------------------------------------------------------*/
#define CONFIG_SYS_HZ 1000 /* Always 1000 */
+#define CONFIG_SYS_LOW_RES_TIMER
#define CONFIG_SYS_NIOS_TMRBASE 0x00920860 /* Tick timer base addr */
#define CONFIG_SYS_NIOS_TMRIRQ 3 /* Timer IRQ num */
#define CONFIG_SYS_NIOS_TMRMS 10 /* Desired period (msec)*/
diff --git a/include/configs/PK1C20.h b/include/configs/PK1C20.h
index b466c4b..95c30cc 100644
--- a/include/configs/PK1C20.h
+++ b/include/configs/PK1C20.h
@@ -128,6 +128,7 @@
* TMRMS represents the desired mecs per tick (msecs per interrupt).
*----------------------------------------------------------------------*/
#define CONFIG_SYS_HZ 1000 /* Always 1000 */
+#define CONFIG_SYS_LOW_RES_TIMER
#define CONFIG_SYS_NIOS_TMRBASE 0x02120820 /* Tick timer base addr */
#define CONFIG_SYS_NIOS_TMRIRQ 3 /* Timer IRQ num */
#define CONFIG_SYS_NIOS_TMRMS 10 /* Desired period */
diff --git a/include/configs/nios2-generic.h b/include/configs/nios2-generic.h
index 53f2084..d57d53c 100644
--- a/include/configs/nios2-generic.h
+++ b/include/configs/nios2-generic.h
@@ -52,6 +52,7 @@
/*
* TIMER
*/
+#define CONFIG_SYS_LOW_RES_TIMER
#define CONFIG_SYS_NIOS_TMRBASE CONFIG_SYS_TIMER_BASE
#define CONFIG_SYS_NIOS_TMRIRQ CONFIG_SYS_TIMER_IRQ
#define CONFIG_SYS_HZ 1000 /* Always 1000 */
--
1.7.5.2.317.g391b14
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