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ipq806x: Bring missing patches from 5.4 to 5.10
Kernel 5.10 support for ipq806x was added at the same time that these patches were developed for kernel 5.4. This carries the patches forward to kernel 5.10. fa73183 ipq806x: dwmac: clear forced speed during probe 75ca641 ipq806x: Add "snps,dwmac" to all gmac compatible= d62825d ipq806x: dwmac: set forced speed when using fixed-link Signed-off-by: Mark Mentovai <mark@moxienet.com> Run-tested: ipq806x/ubnt,unifi-ac-hd Cc: Ansuel Smith <ansuelsmth@gmail.com>
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target/linux/ipq806x/patches-5.10/101-dwmac-ipq806x-qsgmii-pcs-all-ch-ctl.patch
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c | ||
| +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c | ||
| @@ -64,6 +64,17 @@ | ||
| #define NSS_COMMON_CLK_DIV_SGMII_100 4 | ||
| #define NSS_COMMON_CLK_DIV_SGMII_10 49 | ||
|
|
||
| +#define QSGMII_PCS_ALL_CH_CTL 0x80 | ||
| +#define QSGMII_PCS_CH_SPEED_FORCE 0x2 | ||
| +#define QSGMII_PCS_CH_SPEED_10 0x0 | ||
| +#define QSGMII_PCS_CH_SPEED_100 0x4 | ||
| +#define QSGMII_PCS_CH_SPEED_1000 0x8 | ||
| +#define QSGMII_PCS_CH_SPEED_MASK (QSGMII_PCS_CH_SPEED_FORCE | \ | ||
| + QSGMII_PCS_CH_SPEED_10 | \ | ||
| + QSGMII_PCS_CH_SPEED_100 | \ | ||
| + QSGMII_PCS_CH_SPEED_1000) | ||
| +#define QSGMII_PCS_CH_SPEED_SHIFT(x) (x * 4) | ||
| + | ||
| #define QSGMII_PCS_CAL_LCKDT_CTL 0x120 | ||
| #define QSGMII_PCS_CAL_LCKDT_CTL_RST BIT(19) | ||
|
|
||
| @@ -241,6 +252,36 @@ static void ipq806x_gmac_fix_mac_speed(v | ||
| ipq806x_gmac_set_speed(gmac, speed); | ||
| } | ||
|
|
||
| +static int | ||
| +ipq806x_gmac_get_qsgmii_pcs_speed_val(struct platform_device *pdev) { | ||
| + struct device_node *fixed_link_node; | ||
| + int rv; | ||
| + int fixed_link_speed; | ||
| + | ||
| + if (!of_phy_is_fixed_link(pdev->dev.of_node)) | ||
| + return 0; | ||
| + | ||
| + fixed_link_node = of_get_child_by_name(pdev->dev.of_node, "fixed-link"); | ||
| + if (!fixed_link_node) | ||
| + return -1; | ||
| + | ||
| + rv = of_property_read_u32(fixed_link_node, "speed", &fixed_link_speed); | ||
| + of_node_put(fixed_link_node); | ||
| + if (rv) | ||
| + return -1; | ||
| + | ||
| + switch (fixed_link_speed) { | ||
| + case SPEED_1000: | ||
| + return QSGMII_PCS_CH_SPEED_FORCE | QSGMII_PCS_CH_SPEED_1000; | ||
| + case SPEED_100: | ||
| + return QSGMII_PCS_CH_SPEED_FORCE | QSGMII_PCS_CH_SPEED_100; | ||
| + case SPEED_10: | ||
| + return QSGMII_PCS_CH_SPEED_FORCE | QSGMII_PCS_CH_SPEED_10; | ||
| + } | ||
| + | ||
| + return -1; | ||
| +} | ||
| + | ||
| static int ipq806x_gmac_probe(struct platform_device *pdev) | ||
| { | ||
| struct plat_stmmacenet_data *plat_dat; | ||
| @@ -249,6 +290,7 @@ static int ipq806x_gmac_probe(struct pla | ||
| struct ipq806x_gmac *gmac; | ||
| int val; | ||
| int err; | ||
| + int qsgmii_pcs_speed; | ||
|
|
||
| val = stmmac_get_platform_resources(pdev, &stmmac_res); | ||
| if (val) | ||
| @@ -345,6 +387,17 @@ static int ipq806x_gmac_probe(struct pla | ||
| 0x1ul << QSGMII_PHY_RX_INPUT_EQU_OFFSET | | ||
| 0x2ul << QSGMII_PHY_CDR_PI_SLEW_OFFSET | | ||
| 0xCul << QSGMII_PHY_TX_DRV_AMP_OFFSET); | ||
| + | ||
| + qsgmii_pcs_speed = ipq806x_gmac_get_qsgmii_pcs_speed_val(pdev); | ||
| + if (qsgmii_pcs_speed != -1) { | ||
| + regmap_update_bits( | ||
| + gmac->qsgmii_csr, | ||
| + QSGMII_PCS_ALL_CH_CTL, | ||
| + QSGMII_PCS_CH_SPEED_MASK << | ||
| + QSGMII_PCS_CH_SPEED_SHIFT(gmac->id), | ||
| + qsgmii_pcs_speed << | ||
| + QSGMII_PCS_CH_SPEED_SHIFT(gmac->id)); | ||
| + } | ||
| } | ||
|
|
||
| plat_dat->has_gmac = true; |