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dma: imx-sdma: Add sdma firmware version 2 support

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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>
This commit is contained in:
Nicolin Chen 2013-11-13 22:55:24 +08:00 • committed by Vinod Koul
parent b714b84e2b
commit cd72b8462a
2 changed files with 19 additions and 1 deletions
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15
drivers/dma/imx-sdma.c
View file

@ -323,6 +323,7 @@ struct sdma_engine {
struct clk *clk_ipg; struct clk *clk_ipg;
struct clk *clk_ahb; struct clk *clk_ahb;
spinlock_t channel_0_lock; spinlock_t channel_0_lock;
u32 script_number;
struct sdma_script_start_addrs *script_addrs; struct sdma_script_start_addrs *script_addrs;
const struct sdma_driver_data *drvdata; 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_V1 34
#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V2 38
static void sdma_add_scripts(struct sdma_engine *sdma, static void sdma_add_scripts(struct sdma_engine *sdma,
const struct sdma_script_start_addrs *addr) 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; s32 *saddr_arr = (u32 *)sdma->script_addrs;
int i; 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) if (addr_arr[i] > 0)
saddr_arr[i] = addr_arr[i]; saddr_arr[i] = addr_arr[i];
} }
@ -1272,6 +1274,17 @@ static void sdma_load_firmware(const struct firmware *fw, void *context)
goto err_firmware; goto err_firmware;
if (header->ram_code_start + header->ram_code_size > fw->size) if (header->ram_code_start + header->ram_code_size > fw->size)
goto err_firmware; 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; addr = (void *)header + header->script_addrs_start;
ram_code = (void *)header + header->ram_code_start; ram_code = (void *)header + header->ram_code_start;

5
include/linux/platform_data/dma-imx-sdma.h
View file

@ -43,6 +43,11 @@ struct sdma_script_start_addrs {
s32 dptc_dvfs_addr; s32 dptc_dvfs_addr;
s32 utra_addr; s32 utra_addr;
s32 ram_code_start_addr; s32 ram_code_start_addr;
/* End of v1 array */
s32 mcu_2_ssish_addr;
s32 ssish_2_mcu_addr;
s32 hdmi_dma_addr;
/* End of v2 array */
}; };
/** /**