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: Robin Gong <yibin.gong@nxp.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 5969df8372fce84e93b16eac0994758456435f38..cfcd413baa41cf39b5661069fa90d1ad345fe295 100644 (file)
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -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;
-               emi_2_per = sdma->script_addrs->mcu_2_ecspi_addr;
-               sdmac->is_ram_script = true;
+
+               /* 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: