From: Andrew Halaney <ahalaney@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: agross@kernel.org, andersson@kernel.org,
konrad.dybcio@linaro.org, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
vkoul@kernel.org, bhupesh.sharma@linaro.org,
mturquette@baylibre.com, sboyd@kernel.org,
peppe.cavallaro@st.com, alexandre.torgue@foss.st.com,
joabreu@synopsys.com, mcoquelin.stm32@gmail.com,
richardcochran@gmail.com, linux@armlinux.org.uk,
veekhee@apple.com, tee.min.tan@linux.intel.com,
mohammad.athari.ismail@intel.com, jonathanh@nvidia.com,
ruppala@nvidia.com, bmasney@redhat.com,
andrey.konovalov@linaro.org, linux-arm-msm@vger.kernel.org,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-clk@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org, ncai@quicinc.com,
jsuraj@qti.qualcomm.com, hisunil@quicinc.com,
echanude@redhat.com, Andrew Halaney <ahalaney@redhat.com>
Subject: [PATCH net-next v2 11/12] net: stmmac: dwmac-qcom-ethqos: Use loopback_en for all speeds
Date: Mon, 20 Mar 2023 17:16:16 -0500 [thread overview]
Message-ID: <20230320221617.236323-12-ahalaney@redhat.com> (raw)
In-Reply-To: <20230320221617.236323-1-ahalaney@redhat.com>
It seems that this variable should be used for all speeds, not just
1000/100.
While at it refactor it slightly to be more readable, including fixing
the typo in the variable name.
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
---
Changes since v1:
* Use a consistent subject prefix with other stmmac changes in series (myself)
.../stmicro/stmmac/dwmac-qcom-ethqos.c | 36 +++++++++----------
1 file changed, 17 insertions(+), 19 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index e89937916741..41e6f4fa92f3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -78,7 +78,7 @@ struct ethqos_emac_por {
struct ethqos_emac_driver_data {
const struct ethqos_emac_por *por;
unsigned int num_por;
- bool rgmii_config_looback_en;
+ bool rgmii_config_loopback_en;
};
struct qcom_ethqos {
@@ -91,7 +91,7 @@ struct qcom_ethqos {
const struct ethqos_emac_por *por;
unsigned int num_por;
- bool rgmii_config_looback_en;
+ bool rgmii_config_loopback_en;
};
static int rgmii_readl(struct qcom_ethqos *ethqos, unsigned int offset)
@@ -183,7 +183,7 @@ static const struct ethqos_emac_por emac_v2_3_0_por[] = {
static const struct ethqos_emac_driver_data emac_v2_3_0_data = {
.por = emac_v2_3_0_por,
.num_por = ARRAY_SIZE(emac_v2_3_0_por),
- .rgmii_config_looback_en = true,
+ .rgmii_config_loopback_en = true,
};
static const struct ethqos_emac_por emac_v2_1_0_por[] = {
@@ -198,7 +198,7 @@ static const struct ethqos_emac_por emac_v2_1_0_por[] = {
static const struct ethqos_emac_driver_data emac_v2_1_0_data = {
.por = emac_v2_1_0_por,
.num_por = ARRAY_SIZE(emac_v2_1_0_por),
- .rgmii_config_looback_en = false,
+ .rgmii_config_loopback_en = false,
};
static int ethqos_dll_configure(struct qcom_ethqos *ethqos)
@@ -281,6 +281,7 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
{
int phy_mode;
int phase_shift;
+ int loopback;
/* Determine if the PHY adds a 2 ns TX delay or the MAC handles it */
phy_mode = device_get_phy_mode(ðqos->pdev->dev);
@@ -293,6 +294,12 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
rgmii_updatel(ethqos, RGMII_CONFIG2_TX_TO_RX_LOOPBACK_EN,
0, RGMII_IO_MACRO_CONFIG2);
+ /* Determine if this platform wants loopback enabled after programming */
+ if (ethqos->rgmii_config_loopback_en)
+ loopback = RGMII_CONFIG_LOOPBACK_EN;
+ else
+ loopback = 0;
+
/* Select RGMII, write 0 to interface select */
rgmii_updatel(ethqos, RGMII_CONFIG_INTF_SEL,
0, RGMII_IO_MACRO_CONFIG);
@@ -325,12 +332,8 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
rgmii_updatel(ethqos, SDCC_DDR_CONFIG_PRG_DLY_EN,
SDCC_DDR_CONFIG_PRG_DLY_EN,
SDCC_HC_REG_DDR_CONFIG);
- if (ethqos->rgmii_config_looback_en)
- rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN,
- RGMII_CONFIG_LOOPBACK_EN, RGMII_IO_MACRO_CONFIG);
- else
- rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN,
- 0, RGMII_IO_MACRO_CONFIG);
+ rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN,
+ loopback, RGMII_IO_MACRO_CONFIG);
break;
case SPEED_100:
@@ -362,13 +365,8 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
rgmii_updatel(ethqos, SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN,
SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN,
SDCC_HC_REG_DDR_CONFIG);
- if (ethqos->rgmii_config_looback_en)
- rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN,
- RGMII_CONFIG_LOOPBACK_EN, RGMII_IO_MACRO_CONFIG);
- else
- rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN,
- 0, RGMII_IO_MACRO_CONFIG);
-
+ rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN,
+ loopback, RGMII_IO_MACRO_CONFIG);
break;
case SPEED_10:
@@ -402,7 +400,7 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN,
SDCC_HC_REG_DDR_CONFIG);
rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN,
- RGMII_CONFIG_LOOPBACK_EN, RGMII_IO_MACRO_CONFIG);
+ loopback, RGMII_IO_MACRO_CONFIG);
break;
default:
dev_err(ðqos->pdev->dev,
@@ -547,7 +545,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
data = of_device_get_match_data(&pdev->dev);
ethqos->por = data->por;
ethqos->num_por = data->num_por;
- ethqos->rgmii_config_looback_en = data->rgmii_config_looback_en;
+ ethqos->rgmii_config_loopback_en = data->rgmii_config_loopback_en;
ethqos->rgmii_clk = devm_clk_get(&pdev->dev, "rgmii");
if (IS_ERR(ethqos->rgmii_clk)) {
--
2.39.2
next prev parent reply other threads:[~2023-03-20 22:19 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-20 22:16 [PATCH net-next v2 00/12] Add EMAC3 support for sa8540p-ride Andrew Halaney
2023-03-20 22:16 ` [PATCH net-next v2 01/12] dt-bindings: net: snps,dwmac: Update interrupt-names Andrew Halaney
2023-03-21 6:46 ` Krzysztof Kozlowski
2023-03-20 22:16 ` [PATCH net-next v2 02/12] dt-bindings: net: snps,dwmac: Add Qualcomm Ethernet ETHQOS compatibles Andrew Halaney
2023-03-20 22:16 ` [PATCH net-next v2 03/12] dt-bindings: net: qcom,ethqos: Convert bindings to yaml Andrew Halaney
2023-03-21 6:47 ` Krzysztof Kozlowski
2023-03-20 22:16 ` [PATCH net-next v2 04/12] dt-bindings: net: qcom,ethqos: Add Qualcomm sc8280xp compatibles Andrew Halaney
2023-03-21 6:47 ` Krzysztof Kozlowski
2023-03-20 22:16 ` [PATCH net-next v2 05/12] clk: qcom: gcc-sc8280xp: Add EMAC GDSCs Andrew Halaney
2023-03-21 19:33 ` Konrad Dybcio
2023-03-20 22:16 ` [PATCH net-next v2 06/12] arm64: dts: qcom: sc8280xp: Add ethernet nodes Andrew Halaney
2023-03-21 19:33 ` Konrad Dybcio
2023-03-20 22:16 ` [PATCH net-next v2 07/12] arm64: dts: qcom: sa8540p-ride: " Andrew Halaney
2023-03-20 22:16 ` [PATCH net-next v2 08/12] net: stmmac: Remove unnecessary if statement brackets Andrew Halaney
2023-03-20 22:16 ` [PATCH net-next v2 09/12] net: stmmac: Add EMAC3 variant of dwmac4 Andrew Halaney
2023-03-21 3:41 ` Jakub Kicinski
2023-03-21 22:19 ` Andrew Halaney
2023-03-20 22:16 ` [PATCH net-next v2 10/12] net: stmmac: dwmac-qcom-ethqos: Respect phy-mode and TX delay Andrew Halaney
2023-03-21 3:29 ` Jakub Kicinski
2023-03-20 22:16 ` Andrew Halaney [this message]
2023-03-20 22:16 ` [PATCH net-next v2 12/12] net: stmmac: dwmac-qcom-ethqos: Add EMAC3 support Andrew Halaney
2023-03-21 3:28 ` [PATCH net-next v2 00/12] Add EMAC3 support for sa8540p-ride Jakub Kicinski
2023-03-21 18:44 ` Andrew Halaney
2023-03-22 2:44 ` Bjorn Andersson
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