From b3e0d141ca9f7355fca8a12feb451c31f6b2ee18 Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Fri, 12 Aug 2016 11:06:21 +0800 Subject: [PATCH] phy: sun4i: add support for A64 usb phy There's something unknown in the pmu part that shared with H3. It's renamed as PMU_UNK1 from PMU_UNK_H3. Signed-off-by: Icenowy Zheng Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-sun4i-usb.c | 35 +++++++++++++++++++++++++++++------ 1 file changed, 29 insertions(+), 6 deletions(-) diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c index 8c7eb335622e..fcf4d95ecc6d 100644 --- a/drivers/phy/phy-sun4i-usb.c +++ b/drivers/phy/phy-sun4i-usb.c @@ -50,7 +50,7 @@ #define REG_PHYCTL_A33 0x10 #define REG_PHY_UNK_H3 0x20 -#define REG_PMU_UNK_H3 0x10 +#define REG_PMU_UNK1 0x10 #define PHYCTL_DATA BIT(7) @@ -98,6 +98,7 @@ enum sun4i_usb_phy_type { sun6i_a31_phy, sun8i_a33_phy, sun8i_h3_phy, + sun50i_a64_phy, }; struct sun4i_usb_phy_cfg { @@ -106,6 +107,7 @@ struct sun4i_usb_phy_cfg { u32 disc_thresh; u8 phyctl_offset; bool dedicated_clocks; + bool enable_pmu_unk1; }; struct sun4i_usb_phy_data { @@ -183,8 +185,9 @@ static void sun4i_usb_phy_write(struct sun4i_usb_phy *phy, u32 addr, u32 data, mutex_lock(&phy_data->mutex); - if (phy_data->cfg->type == sun8i_a33_phy) { - /* A33 needs us to set phyctl to 0 explicitly */ + if (phy_data->cfg->type == sun8i_a33_phy || + phy_data->cfg->type == sun50i_a64_phy) { + /* A33 or A64 needs us to set phyctl to 0 explicitly */ writel(0, phyctl); } @@ -258,14 +261,16 @@ static int sun4i_usb_phy_init(struct phy *_phy) return ret; } + if (data->cfg->enable_pmu_unk1) { + val = readl(phy->pmu + REG_PMU_UNK1); + writel(val & ~2, phy->pmu + REG_PMU_UNK1); + } + if (data->cfg->type == sun8i_h3_phy) { if (phy->index == 0) { val = readl(data->base + REG_PHY_UNK_H3); writel(val & ~1, data->base + REG_PHY_UNK_H3); } - - val = readl(phy->pmu + REG_PMU_UNK_H3); - writel(val & ~2, phy->pmu + REG_PMU_UNK_H3); } else { /* Enable USB 45 Ohm resistor calibration */ if (phy->index == 0) @@ -737,6 +742,7 @@ static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = false, + .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = { @@ -745,6 +751,7 @@ static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = { .disc_thresh = 2, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = false, + .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = { @@ -753,6 +760,7 @@ static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = true, + .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = { @@ -761,6 +769,7 @@ static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = { .disc_thresh = 2, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = false, + .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = { @@ -769,6 +778,7 @@ static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = true, + .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = { @@ -777,6 +787,7 @@ static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, + .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = { @@ -784,6 +795,16 @@ static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = { .type = sun8i_h3_phy, .disc_thresh = 3, .dedicated_clocks = true, + .enable_pmu_unk1 = true, +}; + +static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = { + .num_phys = 2, + .type = sun50i_a64_phy, + .disc_thresh = 3, + .phyctl_offset = REG_PHYCTL_A33, + .dedicated_clocks = true, + .enable_pmu_unk1 = true, }; static const struct of_device_id sun4i_usb_phy_of_match[] = { @@ -794,6 +815,8 @@ static const struct of_device_id sun4i_usb_phy_of_match[] = { { .compatible = "allwinner,sun8i-a23-usb-phy", .data = &sun8i_a23_cfg }, { .compatible = "allwinner,sun8i-a33-usb-phy", .data = &sun8i_a33_cfg }, { .compatible = "allwinner,sun8i-h3-usb-phy", .data = &sun8i_h3_cfg }, + { .compatible = "allwinner,sun50i-a64-usb-phy", + .data = &sun50i_a64_cfg}, { }, }; MODULE_DEVICE_TABLE(of, sun4i_usb_phy_of_match); -- 2.20.1