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-rw-r--r--drivers/clk/Kconfig8
-rw-r--r--drivers/power/regulator/fixed.c6
-rw-r--r--drivers/timer/tsc_timer.c27
-rw-r--r--drivers/usb/musb-new/musb_core.c1
-rw-r--r--drivers/usb/musb-new/musb_uboot.c12
-rw-r--r--drivers/usb/musb-new/pic32.c6
-rw-r--r--drivers/usb/musb-new/sunxi.c107
7 files changed, 102 insertions, 65 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 18bf8a6d28..a99abed9e9 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -83,13 +83,13 @@ config CLK_STM32MP1
Enable the STM32 clock (RCC) driver. Enable support for
manipulating STM32MP1's on-SoC clocks.
-source "drivers/clk/tegra/Kconfig"
-source "drivers/clk/uniphier/Kconfig"
-source "drivers/clk/exynos/Kconfig"
source "drivers/clk/at91/Kconfig"
-source "drivers/clk/renesas/Kconfig"
+source "drivers/clk/exynos/Kconfig"
source "drivers/clk/mvebu/Kconfig"
source "drivers/clk/owl/Kconfig"
+source "drivers/clk/renesas/Kconfig"
+source "drivers/clk/tegra/Kconfig"
+source "drivers/clk/uniphier/Kconfig"
config ICS8N3QV01
bool "Enable ICS8N3QV01 VCXO driver"
diff --git a/drivers/power/regulator/fixed.c b/drivers/power/regulator/fixed.c
index 0be5b7bd51..a99aa78310 100644
--- a/drivers/power/regulator/fixed.c
+++ b/drivers/power/regulator/fixed.c
@@ -16,6 +16,7 @@
struct fixed_regulator_platdata {
struct gpio_desc gpio; /* GPIO for regulator enable control */
unsigned int startup_delay_us;
+ unsigned int off_on_delay_us;
};
static int fixed_regulator_ofdata_to_platdata(struct udevice *dev)
@@ -50,6 +51,8 @@ static int fixed_regulator_ofdata_to_platdata(struct udevice *dev)
/* Get optional ramp up delay */
dev_pdata->startup_delay_us = dev_read_u32_default(dev,
"startup-delay-us", 0);
+ dev_pdata->off_on_delay_us =
+ dev_read_u32_default(dev, "u-boot,off-on-delay-us", 0);
return 0;
}
@@ -123,6 +126,9 @@ static int fixed_regulator_set_enable(struct udevice *dev, bool enable)
udelay(dev_pdata->startup_delay_us);
debug("%s: done\n", __func__);
+ if (!enable && dev_pdata->off_on_delay_us)
+ udelay(dev_pdata->off_on_delay_us);
+
return 0;
}
diff --git a/drivers/timer/tsc_timer.c b/drivers/timer/tsc_timer.c
index 747f190d38..6473de20f1 100644
--- a/drivers/timer/tsc_timer.c
+++ b/drivers/timer/tsc_timer.c
@@ -341,16 +341,12 @@ static int tsc_timer_get_count(struct udevice *dev, u64 *count)
return 0;
}
-static void tsc_timer_ensure_setup(void)
+static void tsc_timer_ensure_setup(bool stop)
{
if (gd->arch.tsc_base)
return;
gd->arch.tsc_base = rdtsc();
- /*
- * If there is no clock frequency specified in the device tree,
- * calibrate it by ourselves.
- */
if (!gd->arch.clock_rate) {
unsigned long fast_calibrate;
@@ -366,7 +362,10 @@ static void tsc_timer_ensure_setup(void)
if (fast_calibrate)
goto done;
- panic("TSC frequency is ZERO");
+ if (stop)
+ panic("TSC frequency is ZERO");
+ else
+ return;
done:
gd->arch.clock_rate = fast_calibrate * 1000000;
@@ -377,11 +376,17 @@ static int tsc_timer_probe(struct udevice *dev)
{
struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
- if (!uc_priv->clock_rate) {
- tsc_timer_ensure_setup();
- uc_priv->clock_rate = gd->arch.clock_rate;
+ /* Try hardware calibration first */
+ tsc_timer_ensure_setup(false);
+ if (!gd->arch.clock_rate) {
+ /*
+ * Use the clock frequency specified in the
+ * device tree as last resort
+ */
+ if (!uc_priv->clock_rate)
+ panic("TSC frequency is ZERO");
} else {
- gd->arch.tsc_base = rdtsc();
+ uc_priv->clock_rate = gd->arch.clock_rate;
}
return 0;
@@ -394,7 +399,7 @@ unsigned long notrace timer_early_get_rate(void)
* clock rate can only be calibrated via some hardware ways. Specifying
* it in the device tree won't work for the early timer.
*/
- tsc_timer_ensure_setup();
+ tsc_timer_ensure_setup(true);
return gd->arch.clock_rate;
}
diff --git a/drivers/usb/musb-new/musb_core.c b/drivers/usb/musb-new/musb_core.c
index 8fec6f38ad..afea9fbcef 100644
--- a/drivers/usb/musb-new/musb_core.c
+++ b/drivers/usb/musb-new/musb_core.c
@@ -1007,6 +1007,7 @@ void musb_stop(struct musb *musb)
* - ...
*/
musb_platform_try_idle(musb, 0);
+ musb_platform_exit(musb);
}
#ifndef __UBOOT__
diff --git a/drivers/usb/musb-new/musb_uboot.c b/drivers/usb/musb-new/musb_uboot.c
index 2b04fbd046..2bf918eab4 100644
--- a/drivers/usb/musb-new/musb_uboot.c
+++ b/drivers/usb/musb-new/musb_uboot.c
@@ -419,8 +419,8 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
}
#endif /* CONFIG_USB_MUSB_GADGET */
-int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
- void *ctl_regs)
+struct musb *musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
+ void *ctl_regs)
{
struct musb **musbp;
@@ -436,14 +436,14 @@ int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
break;
#endif
default:
- return -EINVAL;
+ return ERR_PTR(-EINVAL);
}
*musbp = musb_init_controller(plat, (struct device *)bdata, ctl_regs);
- if (!*musbp) {
+ if (IS_ERR(*musbp)) {
printf("Failed to init the controller\n");
- return -EIO;
+ return ERR_CAST(*musbp);
}
- return 0;
+ return *musbp;
}
diff --git a/drivers/usb/musb-new/pic32.c b/drivers/usb/musb-new/pic32.c
index f04719d7af..3a19900e21 100644
--- a/drivers/usb/musb-new/pic32.c
+++ b/drivers/usb/musb-new/pic32.c
@@ -251,9 +251,11 @@ static int musb_usb_probe(struct udevice *dev)
ret = musb_lowlevel_init(mdata);
#else
pic32_musb_plat.mode = MUSB_PERIPHERAL;
- ret = musb_register(&pic32_musb_plat, &pdata->dev, mregs);
+ mdata->host = musb_register(&pic32_musb_plat, &pdata->dev, mregs);
+ if (!mdata->host)
+ return -EIO;
#endif
- if (ret == 0)
+ if ((ret == 0) && mdata->host)
printf("PIC32 MUSB OTG\n");
return ret;
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index 08de9c69c7..6cf9826cda 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -76,18 +76,23 @@
* From usbc/usbc.c
******************************************************************************/
+#define OFF_SUN6I_AHB_RESET0 0x2c0
+
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 sunxi_musb_config *cfg;
struct device dev;
- struct phy *phy;
+ struct phy phy;
};
#define to_sunxi_glue(d) container_of(d, struct sunxi_glue, dev)
@@ -235,19 +240,19 @@ static int sunxi_musb_enable(struct musb *musb)
musb_writeb(musb->mregs, USBC_REG_o_VEND0, 0);
if (is_host_enabled(musb)) {
- ret = sun4i_usb_phy_vbus_detect(glue->phy);
+ ret = sun4i_usb_phy_vbus_detect(&glue->phy);
if (ret == 1) {
printf("A charger is plugged into the OTG: ");
return -ENODEV;
}
- ret = sun4i_usb_phy_id_detect(glue->phy);
+ ret = sun4i_usb_phy_id_detect(&glue->phy);
if (ret == 1) {
printf("No host cable detected: ");
return -ENODEV;
}
- ret = generic_phy_power_on(glue->phy);
+ ret = generic_phy_power_on(&glue->phy);
if (ret) {
pr_err("failed to power on USB PHY\n");
return ret;
@@ -271,7 +276,7 @@ static void sunxi_musb_disable(struct musb *musb)
return;
if (is_host_enabled(musb)) {
- ret = generic_phy_power_off(glue->phy);
+ ret = generic_phy_power_off(&glue->phy);
if (ret) {
pr_err("failed to power off USB PHY\n");
return;
@@ -291,7 +296,7 @@ static int sunxi_musb_init(struct musb *musb)
pr_debug("%s():\n", __func__);
- ret = generic_phy_init(glue->phy);
+ ret = generic_phy_init(&glue->phy);
if (ret) {
pr_err("failed to init USB PHY\n");
return ret;
@@ -303,12 +308,12 @@ static int sunxi_musb_init(struct musb *musb)
if (glue->cfg->clkgate_bit)
setbits_le32(&glue->ccm->ahb_gate0,
BIT(glue->cfg->clkgate_bit));
-#ifdef CONFIG_SUNXI_GEN_SUN6I
- setbits_le32(&glue->ccm->ahb_reset0_cfg, BIT(AHB_GATE_OFFSET_USB0));
+
+ if (glue->cfg->has_reset)
+ setbits_le32(glue->reg_reset0, BIT(AHB_GATE_OFFSET_USB0));
+
if (glue->cfg->rst_bit)
- setbits_le32(&glue->ccm->ahb_reset0_cfg,
- BIT(glue->cfg->rst_bit));
-#endif
+ setbits_le32(glue->reg_reset0, BIT(glue->cfg->rst_bit));
USBC_ConfigFIFO_Base();
USBC_EnableDpDmPullUp(musb->mregs);
@@ -326,22 +331,50 @@ static int sunxi_musb_init(struct musb *musb)
return 0;
}
+static int sunxi_musb_exit(struct musb *musb)
+{
+ struct sunxi_glue *glue = to_sunxi_glue(musb->controller);
+ int ret = 0;
+
+ if (generic_phy_valid(&glue->phy)) {
+ ret = generic_phy_exit(&glue->phy);
+ if (ret) {
+ dev_err(dev, "failed to power off usb phy\n");
+ return ret;
+ }
+ }
+
+ 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));
+
+ return 0;
+}
+
static void sunxi_musb_pre_root_reset_end(struct musb *musb)
{
struct sunxi_glue *glue = to_sunxi_glue(musb->controller);
- sun4i_usb_phy_set_squelch_detect(glue->phy, false);
+ sun4i_usb_phy_set_squelch_detect(&glue->phy, false);
}
static void sunxi_musb_post_root_reset_end(struct musb *musb)
{
struct sunxi_glue *glue = to_sunxi_glue(musb->controller);
- sun4i_usb_phy_set_squelch_detect(glue->phy, true);
+ sun4i_usb_phy_set_squelch_detect(&glue->phy, true);
}
static const struct musb_platform_ops sunxi_musb_ops = {
.init = sunxi_musb_init,
+ .exit = sunxi_musb_exit,
.enable = sunxi_musb_enable,
.disable = sunxi_musb_disable,
.pre_root_reset_end = sunxi_musb_pre_root_reset_end,
@@ -405,7 +438,6 @@ static int musb_usb_probe(struct udevice *dev)
struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
struct musb_hdrc_platform_data pdata;
void *base = dev_read_addr_ptr(dev);
- struct phy phy;
int ret;
if (!base)
@@ -419,13 +451,14 @@ static int musb_usb_probe(struct udevice *dev)
if (IS_ERR(glue->ccm))
return PTR_ERR(glue->ccm);
- ret = generic_phy_get_by_name(dev, "usb", &phy);
+ glue->reg_reset0 = (void *)glue->ccm + glue->cfg->off_reset0;
+
+ ret = generic_phy_get_by_name(dev, "usb", &glue->phy);
if (ret) {
pr_err("failed to get usb PHY\n");
return ret;
}
- glue->phy = &phy;
priv->desc_before_addr = true;
memset(&pdata, 0, sizeof(pdata));
@@ -444,9 +477,11 @@ static int musb_usb_probe(struct udevice *dev)
printf("Allwinner mUSB OTG (Host)\n");
#else
pdata.mode = MUSB_PERIPHERAL;
- ret = musb_register(&pdata, &glue->dev, base);
- if (!ret)
- printf("Allwinner mUSB OTG (Peripheral)\n");
+ host->host = musb_register(&pdata, &glue->dev, base);
+ if (!host->host)
+ return -EIO;
+
+ printf("Allwinner mUSB OTG (Peripheral)\n");
#endif
return ret;
@@ -456,29 +491,8 @@ static int musb_usb_remove(struct udevice *dev)
{
struct sunxi_glue *glue = dev_get_priv(dev);
struct musb_host_data *host = &glue->mdata;
- int ret;
-
- if (generic_phy_valid(glue->phy)) {
- ret = generic_phy_exit(glue->phy);
- if (ret) {
- pr_err("failed to exit %s USB PHY\n", dev->name);
- return ret;
- }
- }
musb_stop(host->host);
-
-#ifdef CONFIG_SUNXI_GEN_SUN6I
- clrbits_le32(&glue->ccm->ahb_reset0_cfg, BIT(AHB_GATE_OFFSET_USB0));
- if (glue->cfg->rst_bit)
- clrbits_le32(&glue->ccm->ahb_reset0_cfg,
- BIT(glue->cfg->rst_bit));
-#endif
- 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));
-
free(host->host);
host->host = NULL;
@@ -487,21 +501,30 @@ 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[] = {
{ .compatible = "allwinner,sun4i-a10-musb",
.data = (ulong)&sun4i_a10_cfg },
{ .compatible = "allwinner,sun6i-a31-musb",
- .data = (ulong)&sun4i_a10_cfg },
+ .data = (ulong)&sun6i_a31_cfg },
{ .compatible = "allwinner,sun8i-a33-musb",
- .data = (ulong)&sun4i_a10_cfg },
+ .data = (ulong)&sun6i_a31_cfg },
{ .compatible = "allwinner,sun8i-h3-musb",
.data = (ulong)&sun8i_h3_cfg },
{ }
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-01 14:14:25 +0000