[PATCH V4 6/6] remoteproc: imx_rproc: change to ioremap_wc for dram

From: Peng Fan (OSS)
Date: Fri Sep 10 2021 - 05:07:56 EST

From: Dong Aisheng <aisheng.dong@xxxxxxx>

DRAM is not io memory, so changed to ioremap_wc. This is also
aligned with core io accessories. e.g. memcpy/memset and cpu direct

Cc: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Cc: Peng Fan <peng.fan@xxxxxxx>
Reviewed-and-tested-by: Peng Fan <peng.fan@xxxxxxx>
Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx>
Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
drivers/remoteproc/imx_rproc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index ff620688fad94..4ae416ba50807 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -597,7 +597,7 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,

/* Not use resource version, because we might share region */
- priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev, res.start, resource_size(&res));
+ priv->mem[b].cpu_addr = devm_ioremap_wc(&pdev->dev, res.start, resource_size(&res));
if (!priv->mem[b].cpu_addr) {
dev_err(dev, "failed to remap %pr\n", &res);
return -ENOMEM;