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[MTD] XIP: Use generic xip_iprefetch() instead of asm volatile (...) 

Untested, but shouldn't break anything... Makes MTD_XIP arch
independent. I guess this is why xip_iprefetch() was made for.

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
hifive-unleashed-5.1
Paulius Zaleckas 2008-02-27 01:42:39 +02:00 committed by David Woodhouse
parent fe69af002e
commit ca5c23c3b8
4 changed files with 6 additions and 6 deletions
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4
drivers/mtd/chips/cfi_cmdset_0001.c
View File

@ -1071,10 +1071,10 @@ static int __xipram xip_wait_for_operation(
chip->state = newstate;
map_write(map, CMD(0xff), adr);
(void) map_read(map, adr);
asm volatile (".rep 8; nop; .endr");
xip_iprefetch();
local_irq_enable();
spin_unlock(chip->mutex);
asm volatile (".rep 8; nop; .endr");
xip_iprefetch();
cond_resched();
/*

4
drivers/mtd/chips/cfi_cmdset_0002.c
View File

@ -723,10 +723,10 @@ static void __xipram xip_udelay(struct map_info *map, struct flchip *chip,
chip->erase_suspended = 1;
map_write(map, CMD(0xf0), adr);
(void) map_read(map, adr);
asm volatile (".rep 8; nop; .endr");
xip_iprefetch();
local_irq_enable();
spin_unlock(chip->mutex);
asm volatile (".rep 8; nop; .endr");
xip_iprefetch();
cond_resched();
/*

2
drivers/mtd/chips/cfi_probe.c
View File

@ -39,7 +39,7 @@ struct mtd_info *cfi_probe(struct map_info *map);
#define xip_allowed(base, map) \
do { \
(void) map_read(map, base); \
asm volatile (".rep 8; nop; .endr"); \
xip_iprefetch(); \
local_irq_enable(); \
} while (0)

2
drivers/mtd/chips/cfi_util.c
View File

@ -65,7 +65,7 @@ __xipram cfi_read_pri(struct map_info *map, __u16 adr, __u16 size, const char* n
#ifdef CONFIG_MTD_XIP
(void) map_read(map, base);
asm volatile (".rep 8; nop; .endr");
xip_iprefetch();
local_irq_enable();
#endif