dmaengine: imx-sdma: Add support for version 3 firmware (a572460b) · Commits · 戴 / test

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>

drivers/dma/imx-sdma.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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;

include/linux/platform_data/dma-imx-sdma.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -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 */
		};

		/**

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