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 5969df8..cfcd413 100644
--- 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:
