summaryrefslogtreecommitdiff
path: root/drivers/dma/imx-sdma.c
diff options
context:
space:
mode:
authorNicolin Chen <b42378@freescale.com>2013-11-13 18:55:24 +0400
committerVinod Koul <vinod.koul@intel.com>2013-12-16 07:48:47 +0400
commitcd72b8462a2ebbf9524e726c65c2770f0bf70d22 (patch)
treefc3799201a918a732e1911276f3433c0095b1fba /drivers/dma/imx-sdma.c
parentb714b84e2b74de68b12847bcaf2cf409a18fb741 (diff)
downloadlinux-cd72b8462a2ebbf9524e726c65c2770f0bf70d22.tar.xz
dma: imx-sdma: Add sdma firmware version 2 support
On i.MX5/6 series, SDMA is using new version firmware to support SSI dual FIFO feature and HDMI Audio (i.MX6Q/DL only). Thus add it. Signed-off-by: Nicolin Chen <b42378@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/imx-sdma.c')
-rw-r--r--drivers/dma/imx-sdma.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index c75679d42028..f769c7383536 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -323,6 +323,7 @@ struct sdma_engine {
struct clk *clk_ipg;
struct clk *clk_ahb;
spinlock_t channel_0_lock;
+ u32 script_number;
struct sdma_script_start_addrs *script_addrs;
const struct sdma_driver_data *drvdata;
};
@@ -1238,6 +1239,7 @@ static void sdma_issue_pending(struct dma_chan *chan)
}
#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1 34
+#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V2 38
static void sdma_add_scripts(struct sdma_engine *sdma,
const struct sdma_script_start_addrs *addr)
@@ -1246,7 +1248,7 @@ static void sdma_add_scripts(struct sdma_engine *sdma,
s32 *saddr_arr = (u32 *)sdma->script_addrs;
int i;
- for (i = 0; i < SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1; i++)
+ for (i = 0; i < sdma->script_number; i++)
if (addr_arr[i] > 0)
saddr_arr[i] = addr_arr[i];
}
@@ -1272,6 +1274,17 @@ static void sdma_load_firmware(const struct firmware *fw, void *context)
goto err_firmware;
if (header->ram_code_start + header->ram_code_size > fw->size)
goto err_firmware;
+ switch (header->version_major) {
+ case 1:
+ sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1;
+ break;
+ case 2:
+ sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V2;
+ break;
+ default:
+ dev_err(sdma->dev, "unknown firmware version\n");
+ goto err_firmware;
+ }
addr = (void *)header + header->script_addrs_start;
ram_code = (void *)header + header->ram_code_start;