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authorPatrick McHardy <kaber@trash.net>2013-03-31 18:10:34 +0200
committerPatrick McHardy <kaber@trash.net>2013-03-31 18:10:34 +0200
commit70711d223510ba1773cfe1d7770a56141c815ff8 (patch)
tree4a71f38a3a554ddecaa31b7d8c6bc49b7d1705b4 /arch/arm/mach-davinci/sram.c
parentd53b4ed072d9779cdf53582c46436dec06d0961f (diff)
parent19f949f52599ba7c3f67a5897ac6be14bfcb1200 (diff)
Merge tag 'v3.8' of /home/kaber/src/repos/linux
Linux 3.8 Signed-off-by: Patrick McHardy <kaber@trash.net> Conflicts: include/linux/Kbuild include/linux/netlink.h
Diffstat (limited to 'arch/arm/mach-davinci/sram.c')
-rw-r--r--arch/arm/mach-davinci/sram.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/arch/arm/mach-davinci/sram.c b/arch/arm/mach-davinci/sram.c
index db0f7787faf..c5f7ee5cc80 100644
--- a/arch/arm/mach-davinci/sram.c
+++ b/arch/arm/mach-davinci/sram.c
@@ -10,6 +10,7 @@
*/
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/io.h>
#include <linux/genalloc.h>
#include <mach/common.h>
@@ -17,6 +18,11 @@
static struct gen_pool *sram_pool;
+struct gen_pool *sram_get_gen_pool(void)
+{
+ return sram_pool;
+}
+
void *sram_alloc(size_t len, dma_addr_t *dma)
{
unsigned long vaddr;
@@ -32,7 +38,7 @@ void *sram_alloc(size_t len, dma_addr_t *dma)
return NULL;
if (dma)
- *dma = dma_base + (vaddr - SRAM_VIRT);
+ *dma = gen_pool_virt_to_phys(sram_pool, vaddr);
return (void *)vaddr;
}
@@ -53,8 +59,10 @@ EXPORT_SYMBOL(sram_free);
*/
static int __init sram_init(void)
{
+ phys_addr_t phys = davinci_soc_info.sram_dma;
unsigned len = davinci_soc_info.sram_len;
int status = 0;
+ void *addr;
if (len) {
len = min_t(unsigned, len, SRAM_SIZE);
@@ -62,8 +70,17 @@ static int __init sram_init(void)
if (!sram_pool)
status = -ENOMEM;
}
- if (sram_pool)
- status = gen_pool_add(sram_pool, SRAM_VIRT, len, -1);
+
+ if (sram_pool) {
+ addr = ioremap(phys, len);
+ if (!addr)
+ return -ENOMEM;
+ status = gen_pool_add_virt(sram_pool, (unsigned)addr,
+ phys, len, -1);
+ if (status < 0)
+ iounmap(addr);
+ }
+
WARN_ON(status < 0);
return status;
}