Setting G12A and A1 is similar, so we can use G12A phy driver with little changes.
Signed-off-by: Alexey Romanov avromanov@salutedevices.com --- drivers/phy/Kconfig | 2 +- drivers/phy/meson-g12a-usb2.c | 79 ++++++++++++++++++++++++++++------- 2 files changed, 66 insertions(+), 15 deletions(-)
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index cf4d5908d7..60be62907d 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -190,7 +190,7 @@ config MESON_GXL_USB_PHY
config MESON_G12A_USB_PHY bool "Amlogic Meson G12A USB PHYs" - depends on PHY && ARCH_MESON && MESON_G12A + depends on PHY && ARCH_MESON && (MESON_G12A || MESON_A1) imply REGMAP help This is the generic phy driver for the Amlogic Meson G12A diff --git a/drivers/phy/meson-g12a-usb2.c b/drivers/phy/meson-g12a-usb2.c index 7b028784a0..90053dbea3 100644 --- a/drivers/phy/meson-g12a-usb2.c +++ b/drivers/phy/meson-g12a-usb2.c @@ -18,6 +18,7 @@ #include <regmap.h> #include <linux/delay.h> #include <power/regulator.h> +#include <power-domain.h> #include <reset.h> #include <clk.h>
@@ -146,18 +147,28 @@ #define RESET_COMPLETE_TIME 1000 #define PLL_RESET_COMPLETE_TIME 100
+enum meson_soc_id { + MESON_SOC_A1, + MESON_SOC_G12A, +}; + struct phy_meson_g12a_usb2_priv { struct regmap *regmap; #if CONFIG_IS_ENABLED(CLK) struct clk clk; #endif struct reset_ctl reset; +#if CONFIG_IS_ENABLED(POWER_DOMAIN) + struct power_domain pwrdm; +#endif + int soc_id; };
static int phy_meson_g12a_usb2_init(struct phy *phy) { struct udevice *dev = phy->dev; struct phy_meson_g12a_usb2_priv *priv = dev_get_priv(dev); + u32 value; int ret;
#if CONFIG_IS_ENABLED(CLK) @@ -196,8 +207,7 @@ static int phy_meson_g12a_usb2_init(struct phy *phy) FIELD_PREP(PHY_CTRL_R17_MPLL_FILTER_PVT2, 2) | FIELD_PREP(PHY_CTRL_R17_MPLL_FILTER_PVT1, 9));
- regmap_write(priv->regmap, PHY_CTRL_R18, - FIELD_PREP(PHY_CTRL_R18_MPLL_LKW_SEL, 1) | + value = FIELD_PREP(PHY_CTRL_R18_MPLL_LKW_SEL, 1) | FIELD_PREP(PHY_CTRL_R18_MPLL_LK_W, 9) | FIELD_PREP(PHY_CTRL_R18_MPLL_LK_S, 0x27) | FIELD_PREP(PHY_CTRL_R18_MPLL_PFD_GAIN, 1) | @@ -209,6 +219,11 @@ static int phy_meson_g12a_usb2_init(struct phy *phy) FIELD_PREP(PHY_CTRL_R18_MPLL_ADJ_LDO, 1) | PHY_CTRL_R18_MPLL_ACG_RANGE;
+ if (priv->soc_id == MESON_SOC_A1) + value |= PHY_CTRL_R18_MPLL_DCO_CLK_SEL; + + regmap_write(priv->regmap, PHY_CTRL_R18, value); + udelay(PLL_RESET_COMPLETE_TIME);
/* UnReset PLL */ @@ -231,13 +246,19 @@ static int phy_meson_g12a_usb2_init(struct phy *phy) FIELD_PREP(PHY_CTRL_R20_USB2_BGR_VREF_4_0, 0) | FIELD_PREP(PHY_CTRL_R20_USB2_BGR_DBG_1_0, 0));
- regmap_write(priv->regmap, PHY_CTRL_R4, - FIELD_PREP(PHY_CTRL_R4_CALIB_CODE_7_0, 0xf) | - FIELD_PREP(PHY_CTRL_R4_CALIB_CODE_15_8, 0xf) | - FIELD_PREP(PHY_CTRL_R4_CALIB_CODE_23_16, 0xf) | - PHY_CTRL_R4_TEST_BYPASS_MODE_EN | - FIELD_PREP(PHY_CTRL_R4_I_C2L_BIAS_TRIM_1_0, 0) | - FIELD_PREP(PHY_CTRL_R4_I_C2L_BIAS_TRIM_3_2, 0)); + if (priv->soc_id == MESON_SOC_G12A) + regmap_write(priv->regmap, PHY_CTRL_R4, + FIELD_PREP(PHY_CTRL_R4_CALIB_CODE_7_0, 0xf) | + FIELD_PREP(PHY_CTRL_R4_CALIB_CODE_15_8, 0xf) | + FIELD_PREP(PHY_CTRL_R4_CALIB_CODE_23_16, 0xf) | + PHY_CTRL_R4_TEST_BYPASS_MODE_EN | + FIELD_PREP(PHY_CTRL_R4_I_C2L_BIAS_TRIM_1_0, 0) | + FIELD_PREP(PHY_CTRL_R4_I_C2L_BIAS_TRIM_3_2, 0)); + else if (priv->soc_id == MESON_SOC_A1) + regmap_write(priv->regmap, PHY_CTRL_R21, + PHY_CTRL_R21_USB2_CAL_ACK_EN | + PHY_CTRL_R21_USB2_TX_STRG_PD | + FIELD_PREP(PHY_CTRL_R21_USB2_OTG_ACA_TRIM_1_0, 2));
/* Tuning Disconnect Threshold */ regmap_write(priv->regmap, PHY_CTRL_R3, @@ -246,10 +267,15 @@ static int phy_meson_g12a_usb2_init(struct phy *phy) FIELD_PREP(PHY_CTRL_R3_DISC_THRESH, 3));
/* Analog Settings */ - regmap_write(priv->regmap, PHY_CTRL_R14, 0); - regmap_write(priv->regmap, PHY_CTRL_R13, - PHY_CTRL_R13_UPDATE_PMA_SIGNALS | - FIELD_PREP(PHY_CTRL_R13_MIN_COUNT_FOR_SYNC_DET, 7)); + if (priv->soc_id == MESON_SOC_G12A) { + regmap_write(priv->regmap, PHY_CTRL_R14, 0); + regmap_write(priv->regmap, PHY_CTRL_R13, + PHY_CTRL_R13_UPDATE_PMA_SIGNALS | + FIELD_PREP(PHY_CTRL_R13_MIN_COUNT_FOR_SYNC_DET, 7)); + } else if (priv->soc_id == MESON_SOC_A1) { + regmap_write(priv->regmap, PHY_CTRL_R13, + FIELD_PREP(PHY_CTRL_R13_MIN_COUNT_FOR_SYNC_DET, 7)); + }
return 0; } @@ -281,6 +307,8 @@ int meson_g12a_usb2_phy_probe(struct udevice *dev) struct phy_meson_g12a_usb2_priv *priv = dev_get_priv(dev); int ret;
+ priv->soc_id = (enum meson_soc_id)dev_get_driver_data(dev); + ret = regmap_init_mem(dev_ofnode(dev), &priv->regmap); if (ret) return ret; @@ -297,6 +325,22 @@ int meson_g12a_usb2_phy_probe(struct udevice *dev) return ret; }
+#if CONFIG_IS_ENABLED(POWER_DOMAIN) + ret = power_domain_get(dev, &priv->pwrdm); + if (ret < 0 && ret != -ENODEV) { + pr_err("failed to get power domain\n"); + return ret; + } + + if (ret != -ENODEV) { + ret = power_domain_on(&priv->pwrdm); + if (ret < 0) { + pr_err("failed to enable power domain\n"); + return ret; + } + } +#endif + #if CONFIG_IS_ENABLED(CLK) ret = clk_get_by_index(dev, 0, &priv->clk); if (ret < 0) @@ -307,7 +351,14 @@ int meson_g12a_usb2_phy_probe(struct udevice *dev) }
static const struct udevice_id meson_g12a_usb2_phy_ids[] = { - { .compatible = "amlogic,g12a-usb2-phy" }, + { + .compatible = "amlogic,g12a-usb2-phy", + .data = (ulong)MESON_SOC_G12A, + }, + { + .compatible = "amlogic,a1-usb2-phy", + .data = (ulong)MESON_SOC_A1, + }, { } };