diff options
Diffstat (limited to 'drivers/usb/musb-new')
| -rw-r--r-- | drivers/usb/musb-new/sunxi.c | 79 |
1 files changed, 39 insertions, 40 deletions
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c index f542a181fa..45eecfeee6 100644 --- a/drivers/usb/musb-new/sunxi.c +++ b/drivers/usb/musb-new/sunxi.c @@ -16,9 +16,11 @@ * This file is part of the Inventra Controller Driver for Linux. */ #include <common.h> +#include <clk.h> #include <dm.h> #include <generic-phy.h> #include <phy-sun4i-usb.h> +#include <reset.h> #include <asm/arch/cpu.h> #include <asm/arch/clock.h> #include <asm/arch/gpio.h> @@ -80,16 +82,12 @@ struct sunxi_musb_config { struct musb_hdrc_config *config; - bool has_reset; - u8 rst_bit; - u8 clkgate_bit; - u32 off_reset0; }; struct sunxi_glue { struct musb_host_data mdata; - struct sunxi_ccm_reg *ccm; - u32 *reg_reset0; + struct clk clk; + struct reset_ctl rst; struct sunxi_musb_config *cfg; struct device dev; struct phy phy; @@ -296,24 +294,27 @@ static int sunxi_musb_init(struct musb *musb) pr_debug("%s():\n", __func__); - ret = generic_phy_init(&glue->phy); + ret = clk_enable(&glue->clk); if (ret) { - pr_err("failed to init USB PHY\n"); + dev_err(dev, "failed to enable clock\n"); return ret; } - musb->isr = sunxi_musb_interrupt; - - setbits_le32(&glue->ccm->ahb_gate0, BIT(AHB_GATE_OFFSET_USB0)); - if (glue->cfg->clkgate_bit) - setbits_le32(&glue->ccm->ahb_gate0, - BIT(glue->cfg->clkgate_bit)); + if (reset_valid(&glue->rst)) { + ret = reset_deassert(&glue->rst); + if (ret) { + dev_err(dev, "failed to deassert reset\n"); + goto err_clk; + } + } - if (glue->cfg->has_reset) - setbits_le32(glue->reg_reset0, BIT(AHB_GATE_OFFSET_USB0)); + ret = generic_phy_init(&glue->phy); + if (ret) { + dev_err(dev, "failed to init USB PHY\n"); + goto err_rst; + } - if (glue->cfg->rst_bit) - setbits_le32(glue->reg_reset0, BIT(glue->cfg->rst_bit)); + musb->isr = sunxi_musb_interrupt; USBC_ConfigFIFO_Base(); USBC_EnableDpDmPullUp(musb->mregs); @@ -329,6 +330,13 @@ static int sunxi_musb_init(struct musb *musb) USBC_ForceVbusValidToHigh(musb->mregs); return 0; + +err_rst: + if (reset_valid(&glue->rst)) + reset_assert(&glue->rst); +err_clk: + clk_disable(&glue->clk); + return ret; } static int sunxi_musb_exit(struct musb *musb) @@ -344,16 +352,9 @@ static int sunxi_musb_exit(struct musb *musb) } } - if (glue->cfg->has_reset) - clrbits_le32(glue->reg_reset0, BIT(AHB_GATE_OFFSET_USB0)); - - if (glue->cfg->rst_bit) - clrbits_le32(glue->reg_reset0, BIT(glue->cfg->rst_bit)); - - clrbits_le32(&glue->ccm->ahb_gate0, BIT(AHB_GATE_OFFSET_USB0)); - if (glue->cfg->clkgate_bit) - clrbits_le32(&glue->ccm->ahb_gate0, - BIT(glue->cfg->clkgate_bit)); + if (reset_valid(&glue->rst)) + reset_assert(&glue->rst); + clk_disable(&glue->clk); return 0; } @@ -450,11 +451,17 @@ static int musb_usb_probe(struct udevice *dev) if (!glue->cfg) return -EINVAL; - glue->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - if (IS_ERR(glue->ccm)) - return PTR_ERR(glue->ccm); + ret = clk_get_by_index(dev, 0, &glue->clk); + if (ret) { + dev_err(dev, "failed to get clock\n"); + return ret; + } - glue->reg_reset0 = (void *)glue->ccm + glue->cfg->off_reset0; + ret = reset_get_by_index(dev, 0, &glue->rst); + if (ret && ret != -ENOENT) { + dev_err(dev, "failed to get reset\n"); + return ret; + } ret = generic_phy_get_by_name(dev, "usb", &glue->phy); if (ret) { @@ -462,7 +469,6 @@ static int musb_usb_probe(struct udevice *dev) return ret; } - memset(&pdata, 0, sizeof(pdata)); pdata.power = 250; pdata.platform_ops = &sunxi_musb_ops; @@ -505,21 +511,14 @@ static int musb_usb_remove(struct udevice *dev) static const struct sunxi_musb_config sun4i_a10_cfg = { .config = &musb_config, - .has_reset = false, }; static const struct sunxi_musb_config sun6i_a31_cfg = { .config = &musb_config, - .has_reset = true, - .off_reset0 = OFF_SUN6I_AHB_RESET0, }; static const struct sunxi_musb_config sun8i_h3_cfg = { .config = &musb_config_h3, - .has_reset = true, - .rst_bit = 23, - .clkgate_bit = 23, - .off_reset0 = OFF_SUN6I_AHB_RESET0, }; static const struct udevice_id sunxi_musb_ids[] = { |