diff options
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/allwinner/phy-sun4i-usb.c | 77 |
1 files changed, 57 insertions, 20 deletions
diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c index a7d7e3f044..f206fa3f5d 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -11,10 +11,12 @@ */ #include <common.h> +#include <clk.h> #include <dm.h> #include <dm/device.h> #include <generic-phy.h> #include <phy-sun4i-usb.h> +#include <reset.h> #include <asm/gpio.h> #include <asm/io.h> #include <asm/arch/clock.h> @@ -80,6 +82,7 @@ struct sun4i_usb_phy_cfg { enum sun4i_usb_phy_type type; u32 disc_thresh; u8 phyctl_offset; + bool dedicated_clocks; bool enable_pmu_unk1; bool phy0_dual_route; }; @@ -88,30 +91,21 @@ struct sun4i_usb_phy_info { const char *gpio_vbus; const char *gpio_vbus_det; const char *gpio_id_det; - int rst_mask; } phy_info[] = { { .gpio_vbus = CONFIG_USB0_VBUS_PIN, .gpio_vbus_det = CONFIG_USB0_VBUS_DET, .gpio_id_det = CONFIG_USB0_ID_DET, - .rst_mask = (CCM_USB_CTRL_PHY0_RST | CCM_USB_CTRL_PHY0_CLK), }, { .gpio_vbus = CONFIG_USB1_VBUS_PIN, .gpio_vbus_det = NULL, .gpio_id_det = NULL, - .rst_mask = (CCM_USB_CTRL_PHY1_RST | CCM_USB_CTRL_PHY1_CLK), }, { .gpio_vbus = CONFIG_USB2_VBUS_PIN, .gpio_vbus_det = NULL, .gpio_id_det = NULL, -#ifdef CONFIG_MACH_SUN8I_A83T - .rst_mask = (CCM_USB_CTRL_HSIC_RST | CCM_USB_CTRL_HSIC_CLK | - CCM_USB_CTRL_12M_CLK), -#else - .rst_mask = (CCM_USB_CTRL_PHY2_RST | CCM_USB_CTRL_PHY2_CLK), -#endif }, { .gpio_vbus = CONFIG_USB3_VBUS_PIN, @@ -126,13 +120,13 @@ struct sun4i_usb_phy_plat { int gpio_vbus; int gpio_vbus_det; int gpio_id_det; - int rst_mask; + struct clk clocks; + struct reset_ctl resets; int id; }; struct sun4i_usb_phy_data { void __iomem *base; - struct sunxi_ccm_reg *ccm; const struct sun4i_usb_phy_cfg *cfg; struct sun4i_usb_phy_plat *usb_phy; }; @@ -266,8 +260,19 @@ static int sun4i_usb_phy_init(struct phy *phy) struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id]; u32 val; + int ret; - setbits_le32(&data->ccm->usb_clk_cfg, usb_phy->rst_mask); + ret = clk_enable(&usb_phy->clocks); + if (ret) { + dev_err(dev, "failed to enable usb_%ldphy clock\n", phy->id); + return ret; + } + + ret = reset_deassert(&usb_phy->resets); + if (ret) { + dev_err(dev, "failed to deassert usb_%ldreset reset\n", phy->id); + return ret; + } if (data->cfg->type == sun8i_a83t_phy) { if (phy->id == 0) { @@ -308,6 +313,7 @@ static int sun4i_usb_phy_exit(struct phy *phy) { struct sun4i_usb_phy_data *data = dev_get_priv(phy->dev); struct sun4i_usb_phy_plat *usb_phy = &data->usb_phy[phy->id]; + int ret; if (phy->id == 0) { if (data->cfg->type == sun8i_a83t_phy) { @@ -320,7 +326,17 @@ static int sun4i_usb_phy_exit(struct phy *phy) sun4i_usb_phy_passby(phy, false); - clrbits_le32(&data->ccm->usb_clk_cfg, usb_phy->rst_mask); + ret = clk_disable(&usb_phy->clocks); + if (ret) { + dev_err(dev, "failed to disable usb_%ldphy clock\n", phy->id); + return ret; + } + + ret = reset_assert(&usb_phy->resets); + if (ret) { + dev_err(dev, "failed to assert usb_%ldreset reset\n", phy->id); + return ret; + } return 0; } @@ -407,10 +423,6 @@ static int sun4i_usb_phy_probe(struct udevice *dev) if (IS_ERR(data->base)) return PTR_ERR(data->base); - data->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - if (IS_ERR(data->ccm)) - return PTR_ERR(data->ccm); - data->usb_phy = plat; for (i = 0; i < data->cfg->num_phys; i++) { struct sun4i_usb_phy_plat *phy = &plat[i]; @@ -448,6 +460,24 @@ static int sun4i_usb_phy_probe(struct udevice *dev) sunxi_gpio_set_pull(phy->gpio_id_det, SUNXI_GPIO_PULL_UP); } + if (data->cfg->dedicated_clocks) + snprintf(name, sizeof(name), "usb%d_phy", i); + else + strlcpy(name, "usb_phy", sizeof(name)); + + ret = clk_get_by_name(dev, name, &phy->clocks); + if (ret) { + dev_err(dev, "failed to get usb%d_phy clock phandle\n", i); + return ret; + } + + snprintf(name, sizeof(name), "usb%d_reset", i); + ret = reset_get_by_name(dev, name, &phy->resets); + if (ret) { + dev_err(dev, "failed to get usb%d_reset reset phandle\n", i); + return ret; + } + if (i || data->cfg->phy0_dual_route) { snprintf(name, sizeof(name), "pmu%d", i); phy->pmu = (void __iomem *)devfdt_get_addr_name(dev, name); @@ -456,9 +486,6 @@ static int sun4i_usb_phy_probe(struct udevice *dev) } phy->id = i; - phy->rst_mask = info->rst_mask; - if ((data->cfg->type == sun8i_h3_phy) && (phy->id == 3)) - phy->rst_mask = (BIT(3) | BIT(11)); }; debug("Allwinner Sun4I USB PHY driver loaded\n"); @@ -470,6 +497,7 @@ static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = { .type = sun4i_a10_phy, .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, + .dedicated_clocks = false, .enable_pmu_unk1 = false, }; @@ -478,6 +506,7 @@ static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = { .type = sun4i_a10_phy, .disc_thresh = 2, .phyctl_offset = REG_PHYCTL_A10, + .dedicated_clocks = false, .enable_pmu_unk1 = false, }; @@ -486,6 +515,7 @@ static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = { .type = sun6i_a31_phy, .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, + .dedicated_clocks = true, .enable_pmu_unk1 = false, }; @@ -494,6 +524,7 @@ static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = { .type = sun4i_a10_phy, .disc_thresh = 2, .phyctl_offset = REG_PHYCTL_A10, + .dedicated_clocks = false, .enable_pmu_unk1 = false, }; @@ -502,6 +533,7 @@ static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = { .type = sun4i_a10_phy, .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, + .dedicated_clocks = true, .enable_pmu_unk1 = false, }; @@ -510,6 +542,7 @@ static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = { .type = sun8i_a33_phy, .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, + .dedicated_clocks = true, .enable_pmu_unk1 = false, }; @@ -517,6 +550,7 @@ static const struct sun4i_usb_phy_cfg sun8i_a83t_cfg = { .num_phys = 3, .type = sun8i_a83t_phy, .phyctl_offset = REG_PHYCTL_A33, + .dedicated_clocks = true, }; static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = { @@ -524,6 +558,7 @@ static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = { .type = sun8i_h3_phy, .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, + .dedicated_clocks = true, .enable_pmu_unk1 = true, .phy0_dual_route = true, }; @@ -533,6 +568,7 @@ static const struct sun4i_usb_phy_cfg sun8i_v3s_cfg = { .type = sun8i_v3s_phy, .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, + .dedicated_clocks = true, .enable_pmu_unk1 = true, .phy0_dual_route = true, }; @@ -542,6 +578,7 @@ static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = { .type = sun50i_a64_phy, .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, + .dedicated_clocks = true, .enable_pmu_unk1 = true, .phy0_dual_route = true, }; |