2  * Copyright (c) 2014-2015, NVIDIA CORPORATION.  All rights reserved.
4  * SPDX-License-Identifier: GPL-2.0
7 #define pr_fmt(fmt) "tegra-xusb-padctl: " fmt
14 #include "../xusb-padctl-common.h"
16 #include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
56 	"xusb",
95 	TEGRA124_LANE("otg-0",  0x004,  0, 0x3, 0, otg),
96 	TEGRA124_LANE("otg-1",  0x004,  2, 0x3, 0, otg),
97 	TEGRA124_LANE("otg-2",  0x004,  4, 0x3, 0, otg),
98 	TEGRA124_LANE("ulpi-0", 0x004, 12, 0x1, 0, usb),
99 	TEGRA124_LANE("hsic-0", 0x004, 14, 0x1, 0, usb),
100 	TEGRA124_LANE("hsic-1", 0x004, 15, 0x1, 0, usb),
101 	TEGRA124_LANE("pcie-0", 0x134, 16, 0x3, 1, pci),
102 	TEGRA124_LANE("pcie-1", 0x134, 18, 0x3, 2, pci),
103 	TEGRA124_LANE("pcie-2", 0x134, 20, 0x3, 3, pci),
104 	TEGRA124_LANE("pcie-3", 0x134, 22, 0x3, 4, pci),
105 	TEGRA124_LANE("pcie-4", 0x134, 24, 0x3, 5, pci),
106 	TEGRA124_LANE("sata-0", 0x134, 26, 0x3, 6, pci),
109 static int tegra_xusb_padctl_enable(struct tegra_xusb_padctl *padctl)  in tegra_xusb_padctl_enable()  argument
113 	if (padctl->enable++ > 0)  in tegra_xusb_padctl_enable()
116 	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_enable()
118 	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_enable()
122 	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_enable()
124 	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_enable()
128 	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_enable()
130 	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_enable()
135 static int tegra_xusb_padctl_disable(struct tegra_xusb_padctl *padctl)  in tegra_xusb_padctl_disable()  argument
139 	if (padctl->enable == 0) {  in tegra_xusb_padctl_disable()
144 	if (--padctl->enable > 0)  in tegra_xusb_padctl_disable()
147 	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_disable()
149 	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_disable()
153 	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_disable()
155 	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_disable()
159 	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_disable()
161 	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);  in tegra_xusb_padctl_disable()
168 	return tegra_xusb_padctl_enable(phy->padctl);  in phy_prepare()
173 	return tegra_xusb_padctl_disable(phy->padctl);  in phy_unprepare()
178 	struct tegra_xusb_padctl *padctl = phy->padctl;  in pcie_phy_enable()  local
179 	int err = -ETIMEDOUT;  in pcie_phy_enable()
183 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);  in pcie_phy_enable()
185 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);  in pcie_phy_enable()
187 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL2);  in pcie_phy_enable()
191 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL2);  in pcie_phy_enable()
193 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);  in pcie_phy_enable()
195 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);  in pcie_phy_enable()
200 		value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);  in pcie_phy_enable()
212 	struct tegra_xusb_padctl *padctl = phy->padctl;  in pcie_phy_disable()  local
215 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);  in pcie_phy_disable()
217 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);  in pcie_phy_disable()
224 	struct tegra_xusb_padctl *padctl = phy->padctl;  in sata_phy_enable()  local
225 	int err = -ETIMEDOUT;  in sata_phy_enable()
229 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);  in sata_phy_enable()
232 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);  in sata_phy_enable()
234 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_enable()
237 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_enable()
239 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_enable()
241 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_enable()
243 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_enable()
245 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_enable()
250 		value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_enable()
262 	struct tegra_xusb_padctl *padctl = phy->padctl;  in sata_phy_disable()  local
265 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_disable()
267 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_disable()
269 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_disable()
271 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_disable()
273 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_disable()
276 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);  in sata_phy_disable()
278 	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);  in sata_phy_disable()
281 	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);  in sata_phy_disable()
304 		.padctl = &padctl,
309 		.padctl = &padctl,
331 						"nvidia,tegra124-xusb-padctl");  in tegra_xusb_padctl_init()
342 		count = fdtdec_find_aliases_for_id(gd->fdt_blob, "padctl",  in tegra_xusb_padctl_init()