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path: root/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
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Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c180
1 files changed, 134 insertions, 46 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index 732774645c1a..16a8c361283b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -11,6 +11,7 @@
#define RGMII_IO_MACRO_CONFIG 0x0
#define SDCC_HC_REG_DLL_CONFIG 0x4
+#define SDCC_TEST_CTL 0x8
#define SDCC_HC_REG_DDR_CONFIG 0xC
#define SDCC_HC_REG_DLL_CONFIG2 0x10
#define SDC4_STATUS 0x14
@@ -49,6 +50,7 @@
#define SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY GENMASK(26, 21)
#define SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_CODE GENMASK(29, 27)
#define SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN BIT(30)
+#define SDCC_DDR_CONFIG_TCXO_CYCLES_CNT GENMASK(11, 9)
#define SDCC_DDR_CONFIG_PRG_RCLK_DLY GENMASK(8, 0)
/* SDCC_HC_REG_DLL_CONFIG2 fields */
@@ -78,7 +80,9 @@ 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;
+ bool has_emac3;
+ struct dwmac4_addrs dwmac4_addrs;
};
struct qcom_ethqos {
@@ -91,7 +95,8 @@ struct qcom_ethqos {
const struct ethqos_emac_por *por;
unsigned int num_por;
- bool rgmii_config_looback_en;
+ bool rgmii_config_loopback_en;
+ bool has_emac3;
};
static int rgmii_readl(struct qcom_ethqos *ethqos, unsigned int offset)
@@ -183,7 +188,8 @@ 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,
+ .has_emac3 = false,
};
static const struct ethqos_emac_por emac_v2_1_0_por[] = {
@@ -198,7 +204,40 @@ 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,
+ .has_emac3 = false,
+};
+
+static const struct ethqos_emac_por emac_v3_0_0_por[] = {
+ { .offset = RGMII_IO_MACRO_CONFIG, .value = 0x40c01343 },
+ { .offset = SDCC_HC_REG_DLL_CONFIG, .value = 0x2004642c },
+ { .offset = SDCC_HC_REG_DDR_CONFIG, .value = 0x80040800 },
+ { .offset = SDCC_HC_REG_DLL_CONFIG2, .value = 0x00200000 },
+ { .offset = SDCC_USR_CTL, .value = 0x00010800 },
+ { .offset = RGMII_IO_MACRO_CONFIG2, .value = 0x00002060 },
+};
+
+static const struct ethqos_emac_driver_data emac_v3_0_0_data = {
+ .por = emac_v3_0_0_por,
+ .num_por = ARRAY_SIZE(emac_v3_0_0_por),
+ .rgmii_config_loopback_en = false,
+ .has_emac3 = true,
+ .dwmac4_addrs = {
+ .dma_chan = 0x00008100,
+ .dma_chan_offset = 0x1000,
+ .mtl_chan = 0x00008000,
+ .mtl_chan_offset = 0x1000,
+ .mtl_ets_ctrl = 0x00008010,
+ .mtl_ets_ctrl_offset = 0x1000,
+ .mtl_txq_weight = 0x00008018,
+ .mtl_txq_weight_offset = 0x1000,
+ .mtl_send_slp_cred = 0x0000801c,
+ .mtl_send_slp_cred_offset = 0x1000,
+ .mtl_high_cred = 0x00008020,
+ .mtl_high_cred_offset = 0x1000,
+ .mtl_low_cred = 0x00008024,
+ .mtl_low_cred_offset = 0x1000,
+ },
};
static int ethqos_dll_configure(struct qcom_ethqos *ethqos)
@@ -222,11 +261,13 @@ static int ethqos_dll_configure(struct qcom_ethqos *ethqos)
rgmii_updatel(ethqos, SDCC_DLL_CONFIG_DLL_EN,
SDCC_DLL_CONFIG_DLL_EN, SDCC_HC_REG_DLL_CONFIG);
- rgmii_updatel(ethqos, SDCC_DLL_MCLK_GATING_EN,
- 0, SDCC_HC_REG_DLL_CONFIG);
+ if (!ethqos->has_emac3) {
+ rgmii_updatel(ethqos, SDCC_DLL_MCLK_GATING_EN,
+ 0, SDCC_HC_REG_DLL_CONFIG);
- rgmii_updatel(ethqos, SDCC_DLL_CDR_FINE_PHASE,
- 0, SDCC_HC_REG_DLL_CONFIG);
+ rgmii_updatel(ethqos, SDCC_DLL_CDR_FINE_PHASE,
+ 0, SDCC_HC_REG_DLL_CONFIG);
+ }
/* Wait for CK_OUT_EN clear */
do {
@@ -261,28 +302,48 @@ static int ethqos_dll_configure(struct qcom_ethqos *ethqos)
rgmii_updatel(ethqos, SDCC_DLL_CONFIG2_DDR_CAL_EN,
SDCC_DLL_CONFIG2_DDR_CAL_EN, SDCC_HC_REG_DLL_CONFIG2);
- rgmii_updatel(ethqos, SDCC_DLL_CONFIG2_DLL_CLOCK_DIS,
- 0, SDCC_HC_REG_DLL_CONFIG2);
+ if (!ethqos->has_emac3) {
+ rgmii_updatel(ethqos, SDCC_DLL_CONFIG2_DLL_CLOCK_DIS,
+ 0, SDCC_HC_REG_DLL_CONFIG2);
- rgmii_updatel(ethqos, SDCC_DLL_CONFIG2_MCLK_FREQ_CALC,
- 0x1A << 10, SDCC_HC_REG_DLL_CONFIG2);
+ rgmii_updatel(ethqos, SDCC_DLL_CONFIG2_MCLK_FREQ_CALC,
+ 0x1A << 10, SDCC_HC_REG_DLL_CONFIG2);
- rgmii_updatel(ethqos, SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SEL,
- BIT(2), SDCC_HC_REG_DLL_CONFIG2);
+ rgmii_updatel(ethqos, SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SEL,
+ BIT(2), SDCC_HC_REG_DLL_CONFIG2);
- rgmii_updatel(ethqos, SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SW,
- SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SW,
- SDCC_HC_REG_DLL_CONFIG2);
+ rgmii_updatel(ethqos, SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SW,
+ SDCC_DLL_CONFIG2_DDR_TRAFFIC_INIT_SW,
+ SDCC_HC_REG_DLL_CONFIG2);
+ }
return 0;
}
static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
{
+ int phase_shift;
+ int phy_mode;
+ int loopback;
+
+ /* Determine if the PHY adds a 2 ns TX delay or the MAC handles it */
+ phy_mode = device_get_phy_mode(&ethqos->pdev->dev);
+ if (phy_mode == PHY_INTERFACE_MODE_RGMII_ID ||
+ phy_mode == PHY_INTERFACE_MODE_RGMII_TXID)
+ phase_shift = 0;
+ else
+ phase_shift = RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN;
+
/* Disable loopback mode */
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);
@@ -300,27 +361,32 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
RGMII_CONFIG_PROG_SWAP, RGMII_IO_MACRO_CONFIG);
rgmii_updatel(ethqos, RGMII_CONFIG2_DATA_DIVIDE_CLK_SEL,
0, RGMII_IO_MACRO_CONFIG2);
+
rgmii_updatel(ethqos, RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN,
- RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN,
- RGMII_IO_MACRO_CONFIG2);
+ phase_shift, RGMII_IO_MACRO_CONFIG2);
rgmii_updatel(ethqos, RGMII_CONFIG2_RSVD_CONFIG15,
0, RGMII_IO_MACRO_CONFIG2);
rgmii_updatel(ethqos, RGMII_CONFIG2_RX_PROG_SWAP,
RGMII_CONFIG2_RX_PROG_SWAP,
RGMII_IO_MACRO_CONFIG2);
- /* Set PRG_RCLK_DLY to 57 for 1.8 ns delay */
- rgmii_updatel(ethqos, SDCC_DDR_CONFIG_PRG_RCLK_DLY,
- 57, SDCC_HC_REG_DDR_CONFIG);
+ /* PRG_RCLK_DLY = TCXO period * TCXO_CYCLES_CNT / 2 * RX delay ns,
+ * in practice this becomes PRG_RCLK_DLY = 52 * 4 / 2 * RX delay ns
+ */
+ if (ethqos->has_emac3) {
+ /* 0.9 ns */
+ rgmii_updatel(ethqos, SDCC_DDR_CONFIG_PRG_RCLK_DLY,
+ 115, SDCC_HC_REG_DDR_CONFIG);
+ } else {
+ /* 1.8 ns */
+ rgmii_updatel(ethqos, SDCC_DDR_CONFIG_PRG_RCLK_DLY,
+ 57, SDCC_HC_REG_DDR_CONFIG);
+ }
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:
@@ -336,14 +402,20 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
rgmii_updatel(ethqos, RGMII_CONFIG2_DATA_DIVIDE_CLK_SEL,
0, RGMII_IO_MACRO_CONFIG2);
rgmii_updatel(ethqos, RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN,
- RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN,
- RGMII_IO_MACRO_CONFIG2);
+ phase_shift, RGMII_IO_MACRO_CONFIG2);
rgmii_updatel(ethqos, RGMII_CONFIG_MAX_SPD_PRG_2,
BIT(6), RGMII_IO_MACRO_CONFIG);
rgmii_updatel(ethqos, RGMII_CONFIG2_RSVD_CONFIG15,
0, RGMII_IO_MACRO_CONFIG2);
- rgmii_updatel(ethqos, RGMII_CONFIG2_RX_PROG_SWAP,
- 0, RGMII_IO_MACRO_CONFIG2);
+
+ if (ethqos->has_emac3)
+ rgmii_updatel(ethqos, RGMII_CONFIG2_RX_PROG_SWAP,
+ RGMII_CONFIG2_RX_PROG_SWAP,
+ RGMII_IO_MACRO_CONFIG2);
+ else
+ rgmii_updatel(ethqos, RGMII_CONFIG2_RX_PROG_SWAP,
+ 0, RGMII_IO_MACRO_CONFIG2);
+
/* Write 0x5 to PRG_RCLK_DLY_CODE */
rgmii_updatel(ethqos, SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_CODE,
(BIT(29) | BIT(27)), SDCC_HC_REG_DDR_CONFIG);
@@ -353,13 +425,8 @@ 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:
@@ -375,14 +442,19 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos)
rgmii_updatel(ethqos, RGMII_CONFIG2_DATA_DIVIDE_CLK_SEL,
0, RGMII_IO_MACRO_CONFIG2);
rgmii_updatel(ethqos, RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN,
- 0, RGMII_IO_MACRO_CONFIG2);
+ phase_shift, RGMII_IO_MACRO_CONFIG2);
rgmii_updatel(ethqos, RGMII_CONFIG_MAX_SPD_PRG_9,
BIT(12) | GENMASK(9, 8),
RGMII_IO_MACRO_CONFIG);
rgmii_updatel(ethqos, RGMII_CONFIG2_RSVD_CONFIG15,
0, RGMII_IO_MACRO_CONFIG2);
- rgmii_updatel(ethqos, RGMII_CONFIG2_RX_PROG_SWAP,
- 0, RGMII_IO_MACRO_CONFIG2);
+ if (ethqos->has_emac3)
+ rgmii_updatel(ethqos, RGMII_CONFIG2_RX_PROG_SWAP,
+ RGMII_CONFIG2_RX_PROG_SWAP,
+ RGMII_IO_MACRO_CONFIG2);
+ else
+ rgmii_updatel(ethqos, RGMII_CONFIG2_RX_PROG_SWAP,
+ 0, RGMII_IO_MACRO_CONFIG2);
/* Write 0x5 to PRG_RCLK_DLY_CODE */
rgmii_updatel(ethqos, SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_CODE,
(BIT(29) | BIT(27)), SDCC_HC_REG_DDR_CONFIG);
@@ -393,7 +465,7 @@ 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(&ethqos->pdev->dev,
@@ -425,6 +497,17 @@ static int ethqos_configure(struct qcom_ethqos *ethqos)
rgmii_updatel(ethqos, SDCC_DLL_CONFIG_PDN,
SDCC_DLL_CONFIG_PDN, SDCC_HC_REG_DLL_CONFIG);
+ if (ethqos->has_emac3) {
+ if (ethqos->speed == SPEED_1000) {
+ rgmii_writel(ethqos, 0x1800000, SDCC_TEST_CTL);
+ rgmii_writel(ethqos, 0x2C010800, SDCC_USR_CTL);
+ rgmii_writel(ethqos, 0xA001, SDCC_HC_REG_DLL_CONFIG2);
+ } else {
+ rgmii_writel(ethqos, 0x40010800, SDCC_USR_CTL);
+ rgmii_writel(ethqos, 0xA001, SDCC_HC_REG_DLL_CONFIG2);
+ }
+ }
+
/* Clear DLL_RST */
rgmii_updatel(ethqos, SDCC_DLL_CONFIG_DLL_RST, 0,
SDCC_HC_REG_DLL_CONFIG);
@@ -444,7 +527,9 @@ static int ethqos_configure(struct qcom_ethqos *ethqos)
SDCC_HC_REG_DLL_CONFIG);
/* Set USR_CTL bit 26 with mask of 3 bits */
- rgmii_updatel(ethqos, GENMASK(26, 24), BIT(26), SDCC_USR_CTL);
+ if (!ethqos->has_emac3)
+ rgmii_updatel(ethqos, GENMASK(26, 24), BIT(26),
+ SDCC_USR_CTL);
/* wait for DLL LOCK */
do {
@@ -538,7 +623,8 @@ 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->has_emac3 = data->has_emac3;
ethqos->rgmii_clk = devm_clk_get(&pdev->dev, "rgmii");
if (IS_ERR(ethqos->rgmii_clk)) {
@@ -558,6 +644,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
plat_dat->fix_mac_speed = ethqos_fix_mac_speed;
plat_dat->dump_debug_regs = rgmii_dump;
plat_dat->has_gmac4 = 1;
+ plat_dat->dwmac4_addrs = &data->dwmac4_addrs;
plat_dat->pmt = 1;
plat_dat->tso_en = of_property_read_bool(np, "snps,tso");
if (of_device_is_compatible(np, "qcom,qcs404-ethqos"))
@@ -595,6 +682,7 @@ static int qcom_ethqos_remove(struct platform_device *pdev)
static const struct of_device_id qcom_ethqos_match[] = {
{ .compatible = "qcom,qcs404-ethqos", .data = &emac_v2_3_0_data},
+ { .compatible = "qcom,sc8280xp-ethqos", .data = &emac_v3_0_0_data},
{ .compatible = "qcom,sm8150-ethqos", .data = &emac_v2_1_0_data},
{ }
};
@@ -606,7 +694,7 @@ static struct platform_driver qcom_ethqos_driver = {
.driver = {
.name = "qcom-ethqos",
.pm = &stmmac_pltfr_pm_ops,
- .of_match_table = of_match_ptr(qcom_ethqos_match),
+ .of_match_table = qcom_ethqos_match,
},
};
module_platform_driver(qcom_ethqos_driver);
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-08 09:40:37 +0300