upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
495 lines
14 KiB
495 lines
14 KiB
/*
|
|
* Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0
|
|
*/
|
|
|
|
#define pr_fmt(fmt) "tegra-xusb-padctl: " fmt
|
|
|
|
#include <common.h>
|
|
#include <errno.h>
|
|
#include <fdtdec.h>
|
|
#include <malloc.h>
|
|
|
|
#include <asm/io.h>
|
|
|
|
#include <asm/arch/clock.h>
|
|
#include <asm/arch-tegra/xusb-padctl.h>
|
|
|
|
#include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
|
|
|
|
struct tegra_xusb_phy_ops {
|
|
int (*prepare)(struct tegra_xusb_phy *phy);
|
|
int (*enable)(struct tegra_xusb_phy *phy);
|
|
int (*disable)(struct tegra_xusb_phy *phy);
|
|
int (*unprepare)(struct tegra_xusb_phy *phy);
|
|
};
|
|
|
|
struct tegra_xusb_phy {
|
|
const struct tegra_xusb_phy_ops *ops;
|
|
|
|
struct tegra_xusb_padctl *padctl;
|
|
};
|
|
|
|
struct tegra_xusb_padctl {
|
|
struct fdt_resource regs;
|
|
|
|
unsigned int enable;
|
|
|
|
struct tegra_xusb_phy phys[2];
|
|
};
|
|
|
|
static inline u32 padctl_readl(struct tegra_xusb_padctl *padctl,
|
|
unsigned long offset)
|
|
{
|
|
u32 value = readl(padctl->regs.start + offset);
|
|
debug("padctl: %08lx > %08x\n", offset, value);
|
|
return value;
|
|
}
|
|
|
|
static inline void padctl_writel(struct tegra_xusb_padctl *padctl,
|
|
u32 value, unsigned long offset)
|
|
{
|
|
debug("padctl: %08lx < %08x\n", offset, value);
|
|
writel(value, padctl->regs.start + offset);
|
|
}
|
|
|
|
#define XUSB_PADCTL_ELPG_PROGRAM 0x024
|
|
#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN (1 << 31)
|
|
#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 30)
|
|
#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN (1 << 29)
|
|
|
|
static int tegra_xusb_padctl_enable(struct tegra_xusb_padctl *padctl)
|
|
{
|
|
u32 value;
|
|
|
|
if (padctl->enable++ > 0)
|
|
return 0;
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
|
|
value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
|
|
|
|
udelay(100);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
|
|
value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
|
|
|
|
udelay(100);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
|
|
value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tegra_xusb_padctl_disable(struct tegra_xusb_padctl *padctl)
|
|
{
|
|
u32 value;
|
|
|
|
if (padctl->enable == 0) {
|
|
error("unbalanced enable/disable");
|
|
return 0;
|
|
}
|
|
|
|
if (--padctl->enable > 0)
|
|
return 0;
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
|
|
value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
|
|
|
|
udelay(100);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
|
|
value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
|
|
|
|
udelay(100);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
|
|
value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int phy_prepare(struct tegra_xusb_phy *phy)
|
|
{
|
|
int err;
|
|
|
|
err = tegra_xusb_padctl_enable(phy->padctl);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
reset_set_enable(PERIPH_ID_PEX_USB_UPHY, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int phy_unprepare(struct tegra_xusb_phy *phy)
|
|
{
|
|
reset_set_enable(PERIPH_ID_PEX_USB_UPHY, 1);
|
|
|
|
return tegra_xusb_padctl_disable(phy->padctl);
|
|
}
|
|
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1 0x360
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_NDIV_MASK (0xff << 20)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_NDIV(x) (((x) & 0xff) << 20)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_MDIV_MASK (0x3 << 16)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1_LOCKDET_STATUS (1 << 15)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1_PWR_OVRD (1 << 4)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1_ENABLE (1 << 3)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1_SLEEP_MASK (0x3 << 1)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1_SLEEP(x) (((x) & 0x3) << 1)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1_IDDQ (1 << 0)
|
|
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL2 0x364
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_CTRL_MASK (0xffffff << 4)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_CTRL(x) (((x) & 0xffffff) << 4)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_OVRD (1 << 2)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_DONE (1 << 1)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_EN (1 << 0)
|
|
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL4 0x36c
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_EN (1 << 15)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_SEL_MASK (0x3 << 12)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_SEL(x) (((x) & 0x3) << 12)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL4_REFCLKBUF_EN (1 << 8)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL4_REFCLK_SEL_MASK (0xf << 4)
|
|
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL5 0x370
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL5_DCO_CTRL_MASK (0xff << 16)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL5_DCO_CTRL(x) (((x) & 0xff) << 16)
|
|
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL8 0x37c
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_DONE (1 << 31)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_OVRD (1 << 15)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_CLK_EN (1 << 13)
|
|
#define XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_EN (1 << 12)
|
|
|
|
#define CLK_RST_XUSBIO_PLL_CFG0 0x51c
|
|
#define CLK_RST_XUSBIO_PLL_CFG0_SEQ_ENABLE (1 << 24)
|
|
#define CLK_RST_XUSBIO_PLL_CFG0_PADPLL_SLEEP_IDDQ (1 << 13)
|
|
#define CLK_RST_XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET (1 << 6)
|
|
#define CLK_RST_XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL (1 << 2)
|
|
#define CLK_RST_XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL (1 << 0)
|
|
|
|
static int pcie_phy_enable(struct tegra_xusb_phy *phy)
|
|
{
|
|
struct tegra_xusb_padctl *padctl = phy->padctl;
|
|
unsigned long start;
|
|
u32 value;
|
|
|
|
debug("> %s(phy=%p)\n", __func__, phy);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_CTRL_MASK;
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_CTRL(0x136);
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL5);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL5_DCO_CTRL_MASK;
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL5_DCO_CTRL(0x2a);
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL5);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL1_PWR_OVRD;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_OVRD;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_OVRD;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL4);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_SEL_MASK;
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL4_REFCLK_SEL_MASK;
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_SEL(2);
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_EN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL4);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_MDIV_MASK;
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_NDIV_MASK;
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_NDIV(25);
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_IDDQ;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_SLEEP_MASK;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
|
|
udelay(1);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL4);
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL4_REFCLKBUF_EN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL4);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_EN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
|
|
debug(" waiting for calibration\n");
|
|
|
|
start = get_timer(0);
|
|
|
|
while (get_timer(start) < 250) {
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
if (value & XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_DONE)
|
|
break;
|
|
}
|
|
|
|
debug(" done\n");
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_EN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
|
|
debug(" waiting for calibration to stop\n");
|
|
|
|
start = get_timer(0);
|
|
|
|
while (get_timer(start) < 250) {
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
if ((value & XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_DONE) == 0)
|
|
break;
|
|
}
|
|
|
|
debug(" done\n");
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL1_ENABLE;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
|
|
debug(" waiting for PLL to lock...\n");
|
|
start = get_timer(0);
|
|
|
|
while (get_timer(start) < 250) {
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
if (value & XUSB_PADCTL_UPHY_PLL_P0_CTL1_LOCKDET_STATUS)
|
|
break;
|
|
}
|
|
|
|
debug(" done\n");
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_CLK_EN;
|
|
value |= XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_EN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
|
|
debug(" waiting for register calibration...\n");
|
|
start = get_timer(0);
|
|
|
|
while (get_timer(start) < 250) {
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
if (value & XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_DONE)
|
|
break;
|
|
}
|
|
|
|
debug(" done\n");
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_EN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
|
|
debug(" waiting for register calibration to stop...\n");
|
|
start = get_timer(0);
|
|
|
|
while (get_timer(start) < 250) {
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
if ((value & XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_DONE) == 0)
|
|
break;
|
|
}
|
|
|
|
debug(" done\n");
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_CLK_EN;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
|
|
value = readl(NV_PA_CLK_RST_BASE + CLK_RST_XUSBIO_PLL_CFG0);
|
|
value &= ~CLK_RST_XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL;
|
|
value &= ~CLK_RST_XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL;
|
|
value |= CLK_RST_XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET;
|
|
value |= CLK_RST_XUSBIO_PLL_CFG0_PADPLL_SLEEP_IDDQ;
|
|
writel(value, NV_PA_CLK_RST_BASE + CLK_RST_XUSBIO_PLL_CFG0);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_PWR_OVRD;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_OVRD;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
|
|
|
|
value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_OVRD;
|
|
padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
|
|
|
|
udelay(1);
|
|
|
|
value = readl(NV_PA_CLK_RST_BASE + CLK_RST_XUSBIO_PLL_CFG0);
|
|
value |= CLK_RST_XUSBIO_PLL_CFG0_SEQ_ENABLE;
|
|
writel(value, NV_PA_CLK_RST_BASE + CLK_RST_XUSBIO_PLL_CFG0);
|
|
|
|
debug("< %s()\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
static int pcie_phy_disable(struct tegra_xusb_phy *phy)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static const struct tegra_xusb_phy_ops pcie_phy_ops = {
|
|
.prepare = phy_prepare,
|
|
.enable = pcie_phy_enable,
|
|
.disable = pcie_phy_disable,
|
|
.unprepare = phy_unprepare,
|
|
};
|
|
|
|
static struct tegra_xusb_padctl *padctl = &(struct tegra_xusb_padctl) {
|
|
.phys = {
|
|
[0] = {
|
|
.ops = &pcie_phy_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int tegra_xusb_padctl_parse_dt(struct tegra_xusb_padctl *padctl,
|
|
const void *fdt, int node)
|
|
{
|
|
int err;
|
|
|
|
err = fdt_get_resource(fdt, node, "reg", 0, &padctl->regs);
|
|
if (err < 0) {
|
|
error("registers not found");
|
|
return err;
|
|
}
|
|
|
|
debug("regs: %pa-%pa\n", &padctl->regs.start,
|
|
&padctl->regs.end);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int process_nodes(const void *fdt, int nodes[], unsigned int count)
|
|
{
|
|
unsigned int i;
|
|
int err;
|
|
|
|
debug("> %s(fdt=%p, nodes=%p, count=%u)\n", __func__, fdt, nodes,
|
|
count);
|
|
|
|
for (i = 0; i < count; i++) {
|
|
enum fdt_compat_id id;
|
|
|
|
if (!fdtdec_get_is_enabled(fdt, nodes[i]))
|
|
continue;
|
|
|
|
id = fdtdec_lookup(fdt, nodes[i]);
|
|
switch (id) {
|
|
case COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL:
|
|
case COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL:
|
|
break;
|
|
|
|
default:
|
|
error("unsupported compatible: %s",
|
|
fdtdec_get_compatible(id));
|
|
continue;
|
|
}
|
|
|
|
err = tegra_xusb_padctl_parse_dt(padctl, fdt, nodes[i]);
|
|
if (err < 0) {
|
|
error("failed to parse DT: %d",
|
|
err);
|
|
continue;
|
|
}
|
|
|
|
/* deassert XUSB padctl reset */
|
|
reset_set_enable(PERIPH_ID_XUSB_PADCTL, 0);
|
|
|
|
/* only a single instance is supported */
|
|
break;
|
|
}
|
|
|
|
debug("< %s()\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
struct tegra_xusb_phy *tegra_xusb_phy_get(unsigned int type)
|
|
{
|
|
struct tegra_xusb_phy *phy = NULL;
|
|
|
|
switch (type) {
|
|
case TEGRA_XUSB_PADCTL_PCIE:
|
|
phy = &padctl->phys[0];
|
|
phy->padctl = padctl;
|
|
break;
|
|
}
|
|
|
|
return phy;
|
|
}
|
|
|
|
int tegra_xusb_phy_prepare(struct tegra_xusb_phy *phy)
|
|
{
|
|
if (phy && phy->ops && phy->ops->prepare)
|
|
return phy->ops->prepare(phy);
|
|
|
|
return phy ? -ENOSYS : -EINVAL;
|
|
}
|
|
|
|
int tegra_xusb_phy_enable(struct tegra_xusb_phy *phy)
|
|
{
|
|
if (phy && phy->ops && phy->ops->enable)
|
|
return phy->ops->enable(phy);
|
|
|
|
return phy ? -ENOSYS : -EINVAL;
|
|
}
|
|
|
|
int tegra_xusb_phy_disable(struct tegra_xusb_phy *phy)
|
|
{
|
|
if (phy && phy->ops && phy->ops->disable)
|
|
return phy->ops->disable(phy);
|
|
|
|
return phy ? -ENOSYS : -EINVAL;
|
|
}
|
|
|
|
int tegra_xusb_phy_unprepare(struct tegra_xusb_phy *phy)
|
|
{
|
|
if (phy && phy->ops && phy->ops->unprepare)
|
|
return phy->ops->unprepare(phy);
|
|
|
|
return phy ? -ENOSYS : -EINVAL;
|
|
}
|
|
|
|
void tegra_xusb_padctl_init(const void *fdt)
|
|
{
|
|
int count, nodes[1];
|
|
|
|
debug("> %s(fdt=%p)\n", __func__, fdt);
|
|
|
|
count = fdtdec_find_aliases_for_id(fdt, "padctl",
|
|
COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL,
|
|
nodes, ARRAY_SIZE(nodes));
|
|
if (process_nodes(fdt, nodes, count))
|
|
return;
|
|
|
|
count = fdtdec_find_aliases_for_id(fdt, "padctl",
|
|
COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
|
|
nodes, ARRAY_SIZE(nodes));
|
|
if (process_nodes(fdt, nodes, count))
|
|
return;
|
|
|
|
debug("< %s()\n", __func__);
|
|
}
|
|
|