Commit 4852e9a2 authored by Robin Gong's avatar Robin Gong Committed by Shawn Guo
Browse files

dmaengine: imx-sdma: remove ERR009165 on i.mx6ul 



ECSPI issue fixed from i.mx6ul at hardware level, no need
ERR009165 anymore on those chips such as i.mx8mq.

Signed-off-by: default avatarRobin Gong <yibin.gong@nxp.com>
Acked-by: default avatarVinod Koul <vkoul@kernel.org>
Reviewed-by: default avatarLucas Stach <l.stach@pengutronix.de>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 8eb1252b

drivers/dma/imx-sdma.c

+24 −2
Original line number Diff line number Diff line
@@ -476,6 +476,13 @@ struct sdma_driver_data { 
	int num_events;

	struct sdma_script_start_addrs	*script_addrs;

	bool check_ratio;

	/*

	 * ecspi ERR009165 fixed should be done in sdma script

	 * and it has been fixed in soc from i.mx6ul.

	 * please get more information from the below link:

	 * https://www.nxp.com/docs/en/errata/IMX6DQCE.pdf

	 */

	bool ecspi_fixed;

};



struct sdma_engine {
@@ -596,6 +603,13 @@ static struct sdma_driver_data sdma_imx6q = { 
	.script_addrs = &sdma_script_imx6q,

};



static struct sdma_driver_data sdma_imx6ul = {

	.chnenbl0 = SDMA_CHNENBL0_IMX35,

	.num_events = 48,

	.script_addrs = &sdma_script_imx6q,

	.ecspi_fixed = true,

};



static struct sdma_script_start_addrs sdma_script_imx7d = {

	.ap_2_ap_addr = 644,

	.uart_2_mcu_addr = 819,
@@ -629,6 +643,7 @@ static const struct of_device_id sdma_dt_ids[] = { 
	{ .compatible = "fsl,imx31-sdma", .data = &sdma_imx31, },

	{ .compatible = "fsl,imx25-sdma", .data = &sdma_imx25, },

	{ .compatible = "fsl,imx7d-sdma", .data = &sdma_imx7d, },

	{ .compatible = "fsl,imx6ul-sdma", .data = &sdma_imx6ul, },

	{ .compatible = "fsl,imx8mq-sdma", .data = &sdma_imx8mq, },

	{ /* sentinel */ }

};
@@ -948,8 +963,15 @@ static void sdma_get_pc(struct sdma_channel *sdmac, 
		break;

	case IMX_DMATYPE_CSPI:

		per_2_emi = sdma->script_addrs->app_2_mcu_addr;



		/* Use rom script mcu_2_app if ERR009165 fixed */

		if (sdmac->sdma->drvdata->ecspi_fixed) {

			emi_2_per = sdma->script_addrs->mcu_2_app_addr;

		} else {

			emi_2_per = sdma->script_addrs->mcu_2_ecspi_addr;

			sdmac->is_ram_script = true;

		}



		break;

	case IMX_DMATYPE_EXT:

	case IMX_DMATYPE_SSI: