[U-Boot] [PATCH v4 06/34] musb: sunxi: Add OTG device clkgate and reset for H3/H5

[Jagan Teki]

Enable OTG device clkgate and reset for H3/H5

Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
Suggested-by: Jun Nie <jun.nie at linaro.org>
---
Note:
Since the driver is dm-driver, we even add SOC changes based on
compatible or driver_data but here few of the reset and clock bits
and register offset memebers are in SOC includes files.

I even try to add driver code by adding config structure in .data
but that eventually increasing size.
All these code will anyway move to clock and reset framework
once dm support added.

 arch/arm/include/asm/arch-sunxi/clock_sun6i.h |  1 +
 drivers/usb/musb-new/sunxi.c                  | 24 ++++++++++++++++++------
 2 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
index d794e16..6569883 100644
--- a/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
+++ b/arch/arm/include/asm/arch-sunxi/clock_sun6i.h
@@ -288,6 +288,7 @@ struct sunxi_ccm_reg {
 #define AHB_GATE_OFFSET_USB_EHCI1	27
 #define AHB_GATE_OFFSET_USB_EHCI0	26
 #endif
+#define AHB_GATE_OFFSET_OTG_DEVICE	23
 #ifdef CONFIG_MACH_SUN50I
 #define AHB_GATE_OFFSET_USB0		23
 #elif !defined(CONFIG_MACH_SUN8I_R40)
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index 562d311..7d94936 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -80,6 +80,8 @@ struct sunxi_glue {
 	struct musb_host_data mdata;
 	struct sunxi_ccm_reg *ccm;
 	struct device dev;
+	u32 rst_bit;
+	u32 clkgate_bit;
 };
 #define to_sunxi_glue(d)	container_of(d, struct sunxi_glue, dev)
 
@@ -269,10 +271,13 @@ static int sunxi_musb_init(struct musb *musb)
 
 	musb->isr = sunxi_musb_interrupt;
 
-	setbits_le32(&glue->ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);
+	setbits_le32(&glue->ccm->ahb_gate0,
+		     BIT(AHB_GATE_OFFSET_USB0) | glue->clkgate_bit);
 #ifdef CONFIG_SUNXI_GEN_SUN6I
-	setbits_le32(&glue->ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);
+	setbits_le32(&glue->ccm->ahb_reset0_cfg,
+		     BIT(AHB_GATE_OFFSET_USB0) | glue->rst_bit);
 #endif
+
 	sunxi_usb_phy_init(0);
 
 	USBC_ConfigFIFO_Base();
@@ -367,10 +372,15 @@ static int musb_usb_probe(struct udevice *dev)
 
 	pdata.power = 250;
 	pdata.platform_ops = &sunxi_musb_ops;
-	if (!device_is_compatible(dev, "allwinner,sun8i-h3-musb"))
+	if (!device_is_compatible(dev, "allwinner,sun8i-h3-musb")) {
 		pdata.config = &musb_config;
-	else
+	} else {
 		pdata.config = &musb_config_h3;
+#ifdef CONFIG_MACH_SUNXI_H3_H5
+		glue->rst_bit = BIT(AHB_GATE_OFFSET_OTG_DEVICE);
+		glue->clkgate_bit = BIT(AHB_GATE_OFFSET_OTG_DEVICE);
+#endif
+	}
 
 #ifdef CONFIG_USB_MUSB_HOST
 	pdata.mode = MUSB_HOST;
@@ -400,9 +410,11 @@ static int musb_usb_remove(struct udevice *dev)
 
 	sunxi_usb_phy_exit(0);
 #ifdef CONFIG_SUNXI_GEN_SUN6I
-	clrbits_le32(&glue->ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);
+	clrbits_le32(&glue->ccm->ahb_reset0_cfg,
+		     BIT(AHB_GATE_OFFSET_USB0) | glue->rst_bit);
 #endif
-	clrbits_le32(&glue->ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);
+	clrbits_le32(&glue->ccm->ahb_gate0,
+		     BIT(AHB_GATE_OFFSET_USB0) | glue->clkgate_bit);
 
 	free(host->host);
 	host->host = NULL;
-- 
2.7.4