diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2016-03-30 00:26:51 +0800 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2016-03-31 17:04:06 +0200 |
| commit | 0c935acb9e5dcc0b5889c95a5f3d4163c8638c70 (patch) | |
| tree | 1241f6b80437ea795492e743fdf1d47face83136 /arch/arm/cpu | |
| parent | 5bbda173a911882e982a4c253e21f789275902c9 (diff) | |
sunxi: usb_phy: Add support for A83T USB PHYs
The A83T has 3 USB PHYs: 1 for USB OTG, 1 for standard USB 1.1/2.0 host,
1 for USB HSIC.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/usb_phy.c | 48 |
1 files changed, 46 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/usb_phy.c b/arch/arm/cpu/armv7/sunxi/usb_phy.c index 0749fbdadc..fa375f1d16 100644 --- a/arch/arm/cpu/armv7/sunxi/usb_phy.c +++ b/arch/arm/cpu/armv7/sunxi/usb_phy.c @@ -34,6 +34,16 @@ #define REG_PHY_UNK_H3 0x420 #define REG_PMU_UNK_H3 0x810 +/* A83T specific control bits for PHY0 */ +#define SUNXI_PHY_CTL_VBUSVLDEXT BIT(5) +#define SUNXI_PHY_CTL_SIDDQ BIT(3) + +/* A83T HSIC specific bits */ +#define SUNXI_EHCI_HS_FORCE BIT(20) +#define SUNXI_EHCI_CONNECT_DET BIT(17) +#define SUNXI_EHCI_CONNECT_INT BIT(16) +#define SUNXI_EHCI_HSIC BIT(1) + static struct sunxi_usb_phy { int usb_rst_mask; int gpio_vbus; @@ -56,7 +66,12 @@ static struct sunxi_usb_phy { }, #if CONFIG_SUNXI_USB_PHYS >= 3 { +#ifdef CONFIG_MACH_SUN8I_A83T + .usb_rst_mask = CCM_USB_CTRL_HSIC_RST | CCM_USB_CTRL_HSIC_CLK | + CCM_USB_CTRL_12M_CLK, +#else .usb_rst_mask = CCM_USB_CTRL_PHY2_RST | CCM_USB_CTRL_PHY2_CLK, +#endif .id = 2, .base = SUNXI_USB2_BASE, }, @@ -97,8 +112,8 @@ static int get_id_detect_gpio(int index) return -EINVAL; } -static void usb_phy_write(struct sunxi_usb_phy *phy, int addr, - int data, int len) +__maybe_unused static void usb_phy_write(struct sunxi_usb_phy *phy, int addr, + int data, int len) { int j = 0, usbc_bit = 0; void *dest = (void *)SUNXI_USB0_BASE + SUNXI_USB_CSR; @@ -137,6 +152,10 @@ static void sunxi_usb_phy_config(struct sunxi_usb_phy *phy) clrbits_le32(phy->base + REG_PMU_UNK_H3, 0x02); } +#elif defined CONFIG_MACH_SUN8I_A83T +static void sunxi_usb_phy_config(struct sunxi_usb_phy *phy) +{ +} #else static void sunxi_usb_phy_config(struct sunxi_usb_phy *phy) { @@ -174,6 +193,13 @@ static void sunxi_usb_phy_passby(struct sunxi_usb_phy *phy, int enable) SUNXI_EHCI_AHB_INCRX_ALIGN_EN | SUNXI_EHCI_ULPI_BYPASS_EN; +#ifdef CONFIG_MACH_SUN8I_A83T + if (phy->id == 2) + bits |= SUNXI_EHCI_HS_FORCE | + SUNXI_EHCI_CONNECT_INT | + SUNXI_EHCI_HSIC; +#endif + if (enable) setbits_le32(addr, bits); else @@ -184,9 +210,11 @@ static void sunxi_usb_phy_passby(struct sunxi_usb_phy *phy, int enable) void sunxi_usb_phy_enable_squelch_detect(int index, int enable) { +#ifndef CONFIG_MACH_SUN8I_A83T struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; usb_phy_write(phy, 0x3c, enable ? 0 : 2, 2); +#endif } void sunxi_usb_phy_init(int index) @@ -204,6 +232,15 @@ void sunxi_usb_phy_init(int index) if (phy->id != 0) sunxi_usb_phy_passby(phy, SUNXI_USB_PASSBY_EN); + +#ifdef CONFIG_MACH_SUN8I_A83T + if (phy->id == 0) { + setbits_le32(SUNXI_USB0_BASE + SUNXI_USB_CSR, + SUNXI_PHY_CTL_VBUSVLDEXT); + clrbits_le32(SUNXI_USB0_BASE + SUNXI_USB_CSR, + SUNXI_PHY_CTL_SIDDQ); + } +#endif } void sunxi_usb_phy_exit(int index) @@ -218,6 +255,13 @@ void sunxi_usb_phy_exit(int index) if (phy->id != 0) sunxi_usb_phy_passby(phy, !SUNXI_USB_PASSBY_EN); +#ifdef CONFIG_MACH_SUN8I_A83T + if (phy->id == 0) { + setbits_le32(SUNXI_USB0_BASE + SUNXI_USB_CSR, + SUNXI_PHY_CTL_SIDDQ); + } +#endif + clrbits_le32(&ccm->usb_clk_cfg, phy->usb_rst_mask); } |