[PATCH] net: stmmac: dwmac-qcom-ethqos: Configure host DMA width

From: Sagar Cheluvegowda
Date: Wed May 29 2024 - 14:40:04 EST


Fixes: 070246e4674b ("net: stmmac: Fix for mismatched host/device DMA address width")
Signed-off-by: Sagar Cheluvegowda <quic_scheluve@xxxxxxxxxxx>
---
Change-Id: Ifdf3490c6f0dd55afc062974c05acce42d5fb6a7
---
drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index e254b21fdb59..65d7370b47d5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -93,6 +93,7 @@ struct ethqos_emac_driver_data {
bool has_emac_ge_3;
const char *link_clk_name;
bool has_integrated_pcs;
+ u32 dma_addr_width;
struct dwmac4_addrs dwmac4_addrs;
};

@@ -276,6 +277,7 @@ static const struct ethqos_emac_driver_data emac_v4_0_0_data = {
.has_emac_ge_3 = true,
.link_clk_name = "phyaux",
.has_integrated_pcs = true,
+ .dma_addr_width = 36,
.dwmac4_addrs = {
.dma_chan = 0x00008100,
.dma_chan_offset = 0x1000,
@@ -845,6 +847,8 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
plat_dat->flags |= STMMAC_FLAG_RX_CLK_RUNS_IN_LPI;
if (data->has_integrated_pcs)
plat_dat->flags |= STMMAC_FLAG_HAS_INTEGRATED_PCS;
+ if (data->dma_addr_width)
+ plat_dat->host_dma_width = data->dma_addr_width;

if (ethqos->serdes_phy) {
plat_dat->serdes_powerup = qcom_ethqos_serdes_powerup;

---
base-commit: 1b10b390d945a19747d75b34a6e01035ac7b9155
change-id: 20240515-configure_ethernet_host_dma_width-c619d552992d

Best regards,
--
Sagar Cheluvegowda <quic_scheluve@xxxxxxxxxxx>