diff options
Diffstat (limited to 'drivers/phy/tegra/xusb-tegra210.c')
| -rw-r--r-- | drivers/phy/tegra/xusb-tegra210.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/phy/tegra/xusb-tegra210.c b/drivers/phy/tegra/xusb-tegra210.c index 5d15478ef2a6..12e5a46c1de3 100644 --- a/drivers/phy/tegra/xusb-tegra210.c +++ b/drivers/phy/tegra/xusb-tegra210.c @@ -50,6 +50,7 @@ #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_SHIFT(x) ((x) * 5) #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(x) (0x7 << ((x) * 5)) #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(x, v) (((v) & 0x7) << ((x) * 5)) +#define XUSB_PADCTL_SS_PORT_MAP_PORT_DISABLED 0x7 #define XUSB_PADCTL_ELPG_PROGRAM1 0x024 #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN (1 << 31) @@ -944,6 +945,34 @@ static int tegra210_usb2_phy_power_on(struct phy *phy) priv = to_tegra210_xusb_padctl(padctl); + if (port->usb3_port_fake != -1) { + value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP); + value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK( + port->usb3_port_fake); + value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP( + port->usb3_port_fake, index); + padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); + value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN( + port->usb3_port_fake); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); + + usleep_range(100, 200); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); + value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY( + port->usb3_port_fake); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); + + usleep_range(100, 200); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); + value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN( + port->usb3_port_fake); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); + } + value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK << XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) | @@ -1078,6 +1107,32 @@ static int tegra210_usb2_phy_power_off(struct phy *phy) mutex_lock(&padctl->lock); + if (port->usb3_port_fake != -1) { + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); + value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY( + port->usb3_port_fake); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); + + usleep_range(100, 200); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); + value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN( + port->usb3_port_fake); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); + + usleep_range(250, 350); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); + value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN( + port->usb3_port_fake); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); + + value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP); + value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(port->usb3_port_fake, + XUSB_PADCTL_SS_PORT_MAP_PORT_DISABLED); + padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP); + } + if (WARN_ON(pad->enable == 0)) goto out; @@ -2049,6 +2104,7 @@ const struct tegra_xusb_padctl_soc tegra210_xusb_padctl_soc = { .ops = &tegra210_xusb_padctl_ops, .supply_names = tegra210_xusb_padctl_supply_names, .num_supplies = ARRAY_SIZE(tegra210_xusb_padctl_supply_names), + .need_fake_usb3_port = true, }; EXPORT_SYMBOL_GPL(tegra210_xusb_padctl_soc); |