From 156e96f0382a09e3b67681566319ec945f192eb9 Mon Sep 17 00:00:00 2001
From: Ravi Babu <ravibabu@ti.com>
Date: Mon, 17 Aug 2015 13:29:48 +0530
Subject: [PATCH] sf: allocate cache aligned buffers to copy from flash
Use memalign() with ARCH_DMA_MINALIGN to allocate read buffers.
This is required because, flash drivers may use DMA for read operations
and may have to invalidate the buffer before read.
Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
Tested-by: Jagan Teki <jteki@openedev.com>
---
common/cmd_sf.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/common/cmd_sf.c b/common/cmd_sf.c
index 3746e0d9644..ac7f5dfb818 100644
--- a/common/cmd_sf.c
+++ b/common/cmd_sf.c
@@ -223,7 +223,7 @@ static int spi_flash_update(struct spi_flash *flash, u32 offset,
if (end - buf >= 200)
scale = (end - buf) / 100;
- cmp_buf = malloc(flash->sector_size);
+ cmp_buf = memalign(ARCH_DMA_MINALIGN, flash->sector_size);
if (cmp_buf) {
ulong last_update = get_timer(0);
@@ -484,12 +484,12 @@ static int do_spi_flash_test(int argc, char * const argv[])
if (*argv[2] == 0 || *endp != 0)
return -1;
- vbuf = malloc(len);
+ vbuf = memalign(ARCH_DMA_MINALIGN, len);
if (!vbuf) {
printf("Cannot allocate memory (%lu bytes)\n", len);
return 1;
}
- buf = malloc(len);
+ buf = memalign(ARCH_DMA_MINALIGN, len);
if (!buf) {
free(vbuf);
printf("Cannot allocate memory (%lu bytes)\n", len);
--
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