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

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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>
This commit is contained in:
Robin Gong 2021-07-14 18:20:49 +08:00 • committed by Shawn Guo
parent 8eb1252bbe
commit 4852e9a299
1 changed files with 24 additions and 2 deletions
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26
drivers/dma/imx-sdma.c
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@ -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: