diff options
Diffstat (limited to 'drivers/net/phy/adin.c')
| -rw-r--r-- | drivers/net/phy/adin.c | 64 |
1 files changed, 53 insertions, 11 deletions
diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index cff841ab3dd..a5bfd960d9c 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -4,6 +4,7 @@ * * Copyright 2019 Analog Devices Inc. * Copyright 2022 Variscite Ltd. + * Copyright 2022 Josua Mayer <josua@solid-run.com> */ #include <common.h> #include <phy.h> @@ -13,6 +14,16 @@ #define PHY_ID_ADIN1300 0x0283bc30 #define ADIN1300_EXT_REG_PTR 0x10 #define ADIN1300_EXT_REG_DATA 0x11 + +#define ADIN1300_GE_CLK_CFG_REG 0xff1f +#define ADIN1300_GE_CLK_CFG_MASK GENMASK(5, 0) +#define ADIN1300_GE_CLK_CFG_RCVR_125 BIT(5) +#define ADIN1300_GE_CLK_CFG_FREE_125 BIT(4) +#define ADIN1300_GE_CLK_CFG_REF_EN BIT(3) +#define ADIN1300_GE_CLK_CFG_HRT_RCVR BIT(2) +#define ADIN1300_GE_CLK_CFG_HRT_FREE BIT(1) +#define ADIN1300_GE_CLK_CFG_25 BIT(0) + #define ADIN1300_GE_RGMII_CFG 0xff23 #define ADIN1300_GE_RGMII_RX_MSK GENMASK(8, 6) #define ADIN1300_GE_RGMII_RX_SEL(x) \ @@ -100,27 +111,27 @@ static u32 adin_get_reg_value(struct phy_device *phydev, * The function gets phy-mode string from property 'adi,phy-mode-override' * and return its index in phy_interface_strings table, or -1 in error case. */ -int adin_get_phy_mode_override(struct phy_device *phydev) +phy_interface_t adin_get_phy_mode_override(struct phy_device *phydev) { ofnode node = phy_get_ofnode(phydev); const char *phy_mode_override; const char *prop_phy_mode_override = "adi,phy-mode-override"; - int override_interface; + int i; phy_mode_override = ofnode_read_string(node, prop_phy_mode_override); if (!phy_mode_override) - return -ENODEV; + return PHY_INTERFACE_MODE_NA; debug("%s: %s = '%s'\n", __func__, prop_phy_mode_override, phy_mode_override); - override_interface = phy_get_interface_by_name(phy_mode_override); + for (i = 0; i < PHY_INTERFACE_MODE_MAX; i++) + if (!strcmp(phy_mode_override, phy_interface_strings[i])) + return (phy_interface_t) i; - if (override_interface < 0) - printf("%s: %s = '%s' is not valid\n", - __func__, prop_phy_mode_override, phy_mode_override); + printf("%s: Invalid PHY interface '%s'\n", __func__, phy_mode_override); - return override_interface; + return PHY_INTERFACE_MODE_NA; } static u16 adin_ext_read(struct phy_device *phydev, const u32 regnum) @@ -144,14 +155,41 @@ static int adin_ext_write(struct phy_device *phydev, const u32 regnum, const u16 return phy_write(phydev, MDIO_DEVAD_NONE, ADIN1300_EXT_REG_DATA, val); } +static int adin_config_clk_out(struct phy_device *phydev) +{ + ofnode node = phy_get_ofnode(phydev); + const char *val = NULL; + u8 sel = 0; + + val = ofnode_read_string(node, "adi,phy-output-clock"); + if (!val) { + /* property not present, do not enable GP_CLK pin */ + } else if (strcmp(val, "25mhz-reference") == 0) { + sel |= ADIN1300_GE_CLK_CFG_25; + } else if (strcmp(val, "125mhz-free-running") == 0) { + sel |= ADIN1300_GE_CLK_CFG_FREE_125; + } else if (strcmp(val, "adaptive-free-running") == 0) { + sel |= ADIN1300_GE_CLK_CFG_HRT_FREE; + } else { + pr_err("%s: invalid adi,phy-output-clock\n", __func__); + return -EINVAL; + } + + if (ofnode_read_bool(node, "adi,phy-output-reference-clock")) + sel |= ADIN1300_GE_CLK_CFG_REF_EN; + + return adin_ext_write(phydev, ADIN1300_GE_CLK_CFG_REG, + ADIN1300_GE_CLK_CFG_MASK & sel); +} + static int adin_config_rgmii_mode(struct phy_device *phydev) { u16 reg_val; u32 val; - int phy_mode_override = adin_get_phy_mode_override(phydev); + phy_interface_t phy_mode_override = adin_get_phy_mode_override(phydev); - if (phy_mode_override >= 0) { - phydev->interface = (phy_interface_t) phy_mode_override; + if (phy_mode_override != PHY_INTERFACE_MODE_NA) { + phydev->interface = phy_mode_override; } reg_val = adin_ext_read(phydev, ADIN1300_GE_RGMII_CFG); @@ -202,6 +240,10 @@ static int adin1300_config(struct phy_device *phydev) printf("ADIN1300 PHY detected at addr %d\n", phydev->addr); + ret = adin_config_clk_out(phydev); + if (ret < 0) + return ret; + ret = adin_config_rgmii_mode(phydev); if (ret < 0) |