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dmaengine: imx-sdma: Add support for version 3 firmware 

Currently when version 3.1 of the mx6q SDMA firmware is used we get:

[    0.392169] imx-sdma 20ec000.sdma: unknown firmware version
[    0.399281] imx-sdma 20ec000.sdma: initialized

Add support for it.

Based on a patch from Shengjiu Wang from the internal FSL kernel.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
hifive-unleashed-5.1
Fabio Estevam 2015-03-11 12:30:58 -03:00 committed by Vinod Koul
parent 937abe88ae
commit a572460be9
2 changed files with 7 additions and 0 deletions
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4
drivers/dma/imx-sdma.c
View File

@ -1256,6 +1256,7 @@ 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
#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3 41
static void sdma_add_scripts(struct sdma_engine *sdma,
const struct sdma_script_start_addrs *addr)
@ -1302,6 +1303,9 @@ static void sdma_load_firmware(const struct firmware *fw, void *context)
case 2:
sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V2;
break;
case 3:
sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3;
break;
default:
dev_err(sdma->dev, "unknown firmware version\n");
goto err_firmware;

3
include/linux/platform_data/dma-imx-sdma.h
View File

@ -48,6 +48,9 @@ struct sdma_script_start_addrs {
s32 ssish_2_mcu_addr;
s32 hdmi_dma_addr;
/* End of v2 array */
s32 zcanfd_2_mcu_addr;
s32 zqspi_2_mcu_addr;
/* End of v3 array */
};
/**