Allow i.MX7 to work with the imx-sdma driver.
Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxx>
---
.../devicetree/bindings/dma/fsl-imx-sdma.txt | 1 +
drivers/dma/imx-sdma.c | 26 ++++++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
index 175f0e4..3c9a57a 100644
--- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
@@ -8,6 +8,7 @@ Required properties:
"fsl,imx51-sdma"
"fsl,imx53-sdma"
"fsl,imx6q-sdma"
+ "fsl,imx7d-sdma"
The -to variants should be preferred since they allow to determine the
correct ROM script addresses needed for the driver to work without additional
firmware.
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 03ec76f..e6dc01e 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -479,6 +479,24 @@ static struct sdma_driver_data sdma_imx6q = {
.script_addrs = &sdma_script_imx6q,
};
+static struct sdma_script_start_addrs sdma_script_imx7d = {
+ .ap_2_ap_addr = 644,
+ .uart_2_mcu_addr = 819,
+ .mcu_2_app_addr = 749,
+ .uartsh_2_mcu_addr = 1034,
+ .mcu_2_shp_addr = 962,
+ .app_2_mcu_addr = 685,
+ .shp_2_mcu_addr = 893,
+ .spdif_2_mcu_addr = 1102,
+ .mcu_2_spdif_addr = 1136,
+};
+
+static struct sdma_driver_data sdma_imx7d = {
+ .chnenbl0 = SDMA_CHNENBL0_IMX35,
+ .num_events = 48,
+ .script_addrs = &sdma_script_imx7d,
+};
+
static const struct platform_device_id sdma_devtypes[] = {
{
.name = "imx25-sdma",
@@ -499,6 +517,9 @@ static const struct platform_device_id sdma_devtypes[] = {
.name = "imx6q-sdma",
.driver_data = (unsigned long)&sdma_imx6q,
}, {
+ .name = "imx7d-sdma",
+ .driver_data = (unsigned long)&sdma_imx7d,
+ }, {
/* sentinel */
}
};
@@ -511,6 +532,7 @@ static const struct of_device_id sdma_dt_ids[] = {
{ .compatible = "fsl,imx35-sdma", .data = &sdma_imx35, },
{ .compatible = "fsl,imx31-sdma", .data = &sdma_imx31, },
{ .compatible = "fsl,imx25-sdma", .data = &sdma_imx25, },
+ { .compatible = "fsl,imx7d-sdma", .data = &sdma_imx7d, },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, sdma_dt_ids);
@@ -1375,6 +1397,7 @@ 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
+#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V4 42
static void sdma_add_scripts(struct sdma_engine *sdma,
const struct sdma_script_start_addrs *addr)
@@ -1424,6 +1447,9 @@ static void sdma_load_firmware(const struct firmware *fw, void *context)
case 3:
sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3;
break;
+ case 4:
+ sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V4;
+ break;
default:
dev_err(sdma->dev, "unknown firmware version\n");
goto err_firmware;
--
1.9.1
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