| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. |
| * Copyright (C) 2015 Google, Inc. |
| */ |
| |
| #include <linux/clk.h> |
| #include <linux/clk/tegra.h> |
| #include <linux/delay.h> |
| #include <linux/io.h> |
| #include <linux/mailbox_client.h> |
| #include <linux/module.h> |
| #include <linux/of.h> |
| #include <linux/phy/phy.h> |
| #include <linux/platform_device.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/reset.h> |
| #include <linux/slab.h> |
| |
| #include <soc/tegra/fuse.h> |
| |
| #include "xusb.h" |
| |
| #define FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(x) \ |
| ((x) ? (11 + ((x) - 1) * 6) : 0) |
| #define FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK 0x3f |
| #define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT 7 |
| #define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK 0xf |
| |
| #define FUSE_USB_CALIB_EXT_RPD_CTRL_SHIFT 0 |
| #define FUSE_USB_CALIB_EXT_RPD_CTRL_MASK 0x1f |
| |
| #define XUSB_PADCTL_USB2_PAD_MUX 0x004 |
| #define XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_SHIFT 16 |
| #define XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_MASK 0x3 |
| #define XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_XUSB 0x1 |
| #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_SHIFT 18 |
| #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_MASK 0x3 |
| #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_XUSB 0x1 |
| |
| #define XUSB_PADCTL_USB2_PORT_CAP 0x008 |
| #define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(x) (0x1 << ((x) * 4)) |
| #define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_MASK(x) (0x3 << ((x) * 4)) |
| |
| #define XUSB_PADCTL_SS_PORT_MAP 0x014 |
| #define XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(x) (1 << (((x) * 5) + 4)) |
| #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_ELPG_PROGRAM1 0x024 |
| #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN (1 << 31) |
| #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 30) |
| #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN (1 << 29) |
| #define XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN(x) (1 << (2 + (x) * 3)) |
| #define XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(x) \ |
| (1 << (1 + (x) * 3)) |
| #define XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN(x) (1 << ((x) * 3)) |
| |
| #define XUSB_PADCTL_USB3_PAD_MUX 0x028 |
| #define XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(x) (1 << (1 + (x))) |
| #define XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(x) (1 << (8 + (x))) |
| |
| #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(x) (0x084 + (x) * 0x40) |
| #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT 7 |
| #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_MASK 0x3 |
| #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18 (1 << 6) |
| |
| #define XUSB_PADCTL_USB2_OTG_PADX_CTL0(x) (0x088 + (x) * 0x40) |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI (1 << 29) |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 (1 << 27) |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD (1 << 26) |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT 0 |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK 0x3f |
| |
| #define XUSB_PADCTL_USB2_OTG_PADX_CTL1(x) (0x08c + (x) * 0x40) |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_SHIFT 26 |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_MASK 0x1f |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT 3 |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK 0xf |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR (1 << 2) |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_OVRD (1 << 1) |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_OVRD (1 << 0) |
| |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0 0x284 |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD (1 << 11) |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT 3 |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK 0x7 |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL 0x7 |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT 0 |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK 0x7 |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_VAL 0x2 |
| |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1 0x288 |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_PD_TRK (1 << 26) |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_SHIFT 19 |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_MASK 0x7f |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_VAL 0x0a |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_SHIFT 12 |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_MASK 0x7f |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_VAL 0x1e |
| |
| #define XUSB_PADCTL_HSIC_PADX_CTL0(x) (0x300 + (x) * 0x20) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE (1 << 18) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA1 (1 << 17) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA0 (1 << 16) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPD_STROBE (1 << 15) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 (1 << 14) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 (1 << 13) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_STROBE (1 << 9) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA1 (1 << 8) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA0 (1 << 7) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_STROBE (1 << 6) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA1 (1 << 5) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA0 (1 << 4) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_STROBE (1 << 3) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA1 (1 << 2) |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA0 (1 << 1) |
| |
| #define XUSB_PADCTL_HSIC_PADX_CTL1(x) (0x304 + (x) * 0x20) |
| #define XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_SHIFT 0 |
| #define XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_MASK 0xf |
| |
| #define XUSB_PADCTL_HSIC_PADX_CTL2(x) (0x308 + (x) * 0x20) |
| #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT 8 |
| #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK 0xf |
| #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT 0 |
| #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK 0xff |
| |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL 0x340 |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_PD_TRK (1 << 19) |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_SHIFT 12 |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_MASK 0x7f |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_VAL 0x0a |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_SHIFT 5 |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_MASK 0x7f |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_VAL 0x1e |
| |
| #define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL 0x344 |
| |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL1 0x360 |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT 20 |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_MASK 0xff |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_USB_VAL 0x19 |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SATA_VAL 0x1e |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_SHIFT 16 |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_MASK 0x3 |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_LOCKDET_STATUS (1 << 15) |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD (1 << 4) |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_ENABLE (1 << 3) |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_SHIFT 1 |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_MASK 0x3 |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_IDDQ (1 << 0) |
| |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL2 0x364 |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT 4 |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_MASK 0xffffff |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_VAL 0x136 |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD (1 << 2) |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE (1 << 1) |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN (1 << 0) |
| |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL4 0x36c |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_XDIGCLK_EN (1 << 19) |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_EN (1 << 15) |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT 12 |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_MASK 0x3 |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_USB_VAL 0x2 |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SATA_VAL 0x0 |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_REFCLKBUF_EN (1 << 8) |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_SHIFT 4 |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_MASK 0xf |
| |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL5 0x370 |
| #define XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT 16 |
| #define XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_MASK 0xff |
| #define XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_VAL 0x2a |
| |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL8 0x37c |
| #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE (1 << 31) |
| #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD (1 << 15) |
| #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN (1 << 13) |
| #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN (1 << 12) |
| |
| #define XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL1(x) (0x460 + (x) * 0x40) |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_SHIFT 20 |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_MASK 0x3 |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_VAL 0x1 |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_TERM_EN BIT(18) |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_MODE_OVRD BIT(13) |
| |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL1 0x860 |
| |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL2 0x864 |
| |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL4 0x86c |
| |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL5 0x870 |
| |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL8 0x87c |
| |
| #define XUSB_PADCTL_UPHY_MISC_PAD_S0_CTL1 0x960 |
| |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL1(x) (0xa60 + (x) * 0x40) |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_SHIFT 16 |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_MASK 0x3 |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_VAL 0x2 |
| |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL2(x) (0xa64 + (x) * 0x40) |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_SHIFT 0 |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_MASK 0xffff |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_VAL 0x00fc |
| |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL3(x) (0xa68 + (x) * 0x40) |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL3_RX_DFE_VAL 0xc0077f1f |
| |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL4(x) (0xa6c + (x) * 0x40) |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_SHIFT 16 |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_MASK 0xffff |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_VAL 0x01c7 |
| |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL6(x) (0xa74 + (x) * 0x40) |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL6_RX_EQ_CTRL_H_VAL 0xfcf01368 |
| |
| struct tegra210_xusb_fuse_calibration { |
| u32 hs_curr_level[4]; |
| u32 hs_term_range_adj; |
| u32 rpd_ctrl; |
| }; |
| |
| struct tegra210_xusb_padctl { |
| struct tegra_xusb_padctl base; |
| |
| struct tegra210_xusb_fuse_calibration fuse; |
| }; |
| |
| static inline struct tegra210_xusb_padctl * |
| to_tegra210_xusb_padctl(struct tegra_xusb_padctl *padctl) |
| { |
| return container_of(padctl, struct tegra210_xusb_padctl, base); |
| } |
| |
| /* must be called under padctl->lock */ |
| static int tegra210_pex_uphy_enable(struct tegra_xusb_padctl *padctl) |
| { |
| struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(padctl->pcie); |
| unsigned long timeout; |
| u32 value; |
| int err; |
| |
| if (pcie->enable > 0) { |
| pcie->enable++; |
| return 0; |
| } |
| |
| err = clk_prepare_enable(pcie->pll); |
| if (err < 0) |
| return err; |
| |
| err = reset_control_deassert(pcie->rst); |
| if (err < 0) |
| goto disable; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT; |
| 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_CTL5_DCO_CTRL_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT; |
| 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_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_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_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_CTL4_TXCLKREF_SEL_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT) | |
| (XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_SHIFT)); |
| value |= (XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_USB_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT) | |
| XUSB_PADCTL_UPHY_PLL_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_CTL1_FREQ_MDIV_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_SHIFT) | |
| (XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT)); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_USB_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT; |
| 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_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_CTL1_SLEEP_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_SHIFT); |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| |
| usleep_range(10, 20); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL4); |
| value |= XUSB_PADCTL_UPHY_PLL_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_CTL2_CAL_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| if (!(value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE)) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_ENABLE; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL1_LOCKDET_STATUS) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN | |
| XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| if (!(value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE)) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| |
| tegra210_xusb_pll_hw_control_enable(); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| value &= ~XUSB_PADCTL_UPHY_PLL_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_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_CTL8_RCAL_OVRD; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| |
| usleep_range(10, 20); |
| |
| tegra210_xusb_pll_hw_sequence_start(); |
| |
| pcie->enable++; |
| |
| return 0; |
| |
| reset: |
| reset_control_assert(pcie->rst); |
| disable: |
| clk_disable_unprepare(pcie->pll); |
| return err; |
| } |
| |
| static void tegra210_pex_uphy_disable(struct tegra_xusb_padctl *padctl) |
| { |
| struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(padctl->pcie); |
| |
| mutex_lock(&padctl->lock); |
| |
| if (WARN_ON(pcie->enable == 0)) |
| goto unlock; |
| |
| if (--pcie->enable > 0) |
| goto unlock; |
| |
| reset_control_assert(pcie->rst); |
| clk_disable_unprepare(pcie->pll); |
| |
| unlock: |
| mutex_unlock(&padctl->lock); |
| } |
| |
| /* must be called under padctl->lock */ |
| static int tegra210_sata_uphy_enable(struct tegra_xusb_padctl *padctl, bool usb) |
| { |
| struct tegra_xusb_sata_pad *sata = to_sata_pad(padctl->sata); |
| unsigned long timeout; |
| u32 value; |
| int err; |
| |
| if (sata->enable > 0) { |
| sata->enable++; |
| return 0; |
| } |
| |
| err = clk_prepare_enable(sata->pll); |
| if (err < 0) |
| return err; |
| |
| err = reset_control_deassert(sata->rst); |
| if (err < 0) |
| goto disable; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL5); |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL5); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL4); |
| value &= ~((XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT) | |
| (XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_SHIFT)); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_EN; |
| |
| if (usb) |
| value |= (XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_USB_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT); |
| else |
| value |= (XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SATA_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT); |
| |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL4_XDIGCLK_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL4); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| value &= ~((XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_SHIFT) | |
| (XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT)); |
| |
| if (usb) |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_USB_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT; |
| else |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SATA_VAL << |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT; |
| |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_IDDQ; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_MASK << |
| XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_SHIFT); |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| |
| usleep_range(10, 20); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL4); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL4_REFCLKBUF_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL4); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| if (!(value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE)) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_ENABLE; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL1_LOCKDET_STATUS) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN | |
| XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| |
| timeout = jiffies + msecs_to_jiffies(100); |
| |
| while (time_before(jiffies, timeout)) { |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| if (!(value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE)) |
| break; |
| |
| usleep_range(10, 20); |
| } |
| |
| if (time_after_eq(jiffies, timeout)) { |
| err = -ETIMEDOUT; |
| goto reset; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| |
| tegra210_sata_pll_hw_control_enable(); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| |
| usleep_range(10, 20); |
| |
| tegra210_sata_pll_hw_sequence_start(); |
| |
| sata->enable++; |
| |
| return 0; |
| |
| reset: |
| reset_control_assert(sata->rst); |
| disable: |
| clk_disable_unprepare(sata->pll); |
| return err; |
| } |
| |
| static void tegra210_sata_uphy_disable(struct tegra_xusb_padctl *padctl) |
| { |
| struct tegra_xusb_sata_pad *sata = to_sata_pad(padctl->sata); |
| |
| mutex_lock(&padctl->lock); |
| |
| if (WARN_ON(sata->enable == 0)) |
| goto unlock; |
| |
| if (--sata->enable > 0) |
| goto unlock; |
| |
| reset_control_assert(sata->rst); |
| clk_disable_unprepare(sata->pll); |
| |
| unlock: |
| mutex_unlock(&padctl->lock); |
| } |
| |
| static int tegra210_xusb_padctl_enable(struct tegra_xusb_padctl *padctl) |
| { |
| u32 value; |
| |
| mutex_lock(&padctl->lock); |
| |
| if (padctl->enable++ > 0) |
| goto out; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| value &= ~XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN; |
| 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_AUX_MUX_LP0_CLAMP_EN_EARLY; |
| 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_AUX_MUX_LP0_VCORE_DOWN; |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| |
| out: |
| mutex_unlock(&padctl->lock); |
| return 0; |
| } |
| |
| static int tegra210_xusb_padctl_disable(struct tegra_xusb_padctl *padctl) |
| { |
| u32 value; |
| |
| mutex_lock(&padctl->lock); |
| |
| if (WARN_ON(padctl->enable == 0)) |
| goto out; |
| |
| if (--padctl->enable > 0) |
| goto out; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| value |= XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN; |
| 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_AUX_MUX_LP0_CLAMP_EN_EARLY; |
| 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_AUX_MUX_LP0_CLAMP_EN; |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| |
| out: |
| mutex_unlock(&padctl->lock); |
| return 0; |
| } |
| |
| static int tegra210_hsic_set_idle(struct tegra_xusb_padctl *padctl, |
| unsigned int index, bool idle) |
| { |
| u32 value; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| |
| value &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_STROBE); |
| |
| if (idle) |
| value |= XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE; |
| else |
| value &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE); |
| |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| |
| return 0; |
| } |
| |
| static int tegra210_usb3_set_lfps_detect(struct tegra_xusb_padctl *padctl, |
| unsigned int index, bool enable) |
| { |
| struct tegra_xusb_port *port; |
| struct tegra_xusb_lane *lane; |
| u32 value, offset; |
| |
| port = tegra_xusb_find_port(padctl, "usb3", index); |
| if (!port) |
| return -ENODEV; |
| |
| lane = port->lane; |
| |
| if (lane->pad == padctl->pcie) |
| offset = XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL1(lane->index); |
| else |
| offset = XUSB_PADCTL_UPHY_MISC_PAD_S0_CTL1; |
| |
| value = padctl_readl(padctl, offset); |
| |
| value &= ~((XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_MASK << |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_SHIFT) | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_TERM_EN | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_MODE_OVRD); |
| |
| if (!enable) { |
| value |= (XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_VAL << |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_SHIFT) | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_TERM_EN | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_MODE_OVRD; |
| } |
| |
| padctl_writel(padctl, value, offset); |
| |
| return 0; |
| } |
| |
| #define TEGRA210_LANE(_name, _offset, _shift, _mask, _type) \ |
| { \ |
| .name = _name, \ |
| .offset = _offset, \ |
| .shift = _shift, \ |
| .mask = _mask, \ |
| .num_funcs = ARRAY_SIZE(tegra210_##_type##_functions), \ |
| .funcs = tegra210_##_type##_functions, \ |
| } |
| |
| static const char *tegra210_usb2_functions[] = { |
| "snps", |
| "xusb", |
| "uart" |
| }; |
| |
| static const struct tegra_xusb_lane_soc tegra210_usb2_lanes[] = { |
| TEGRA210_LANE("usb2-0", 0x004, 0, 0x3, usb2), |
| TEGRA210_LANE("usb2-1", 0x004, 2, 0x3, usb2), |
| TEGRA210_LANE("usb2-2", 0x004, 4, 0x3, usb2), |
| TEGRA210_LANE("usb2-3", 0x004, 6, 0x3, usb2), |
| }; |
| |
| static struct tegra_xusb_lane * |
| tegra210_usb2_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, |
| unsigned int index) |
| { |
| struct tegra_xusb_usb2_lane *usb2; |
| int err; |
| |
| usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL); |
| if (!usb2) |
| return ERR_PTR(-ENOMEM); |
| |
| INIT_LIST_HEAD(&usb2->base.list); |
| usb2->base.soc = &pad->soc->lanes[index]; |
| usb2->base.index = index; |
| usb2->base.pad = pad; |
| usb2->base.np = np; |
| |
| err = tegra_xusb_lane_parse_dt(&usb2->base, np); |
| if (err < 0) { |
| kfree(usb2); |
| return ERR_PTR(err); |
| } |
| |
| return &usb2->base; |
| } |
| |
| static void tegra210_usb2_lane_remove(struct tegra_xusb_lane *lane) |
| { |
| struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane); |
| |
| kfree(usb2); |
| } |
| |
| static const struct tegra_xusb_lane_ops tegra210_usb2_lane_ops = { |
| .probe = tegra210_usb2_lane_probe, |
| .remove = tegra210_usb2_lane_remove, |
| }; |
| |
| static int tegra210_usb2_phy_init(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| u32 value; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_PAD_MUX); |
| value &= ~(XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_MASK << |
| XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_SHIFT); |
| value |= XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_XUSB << |
| XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_SHIFT; |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_PAD_MUX); |
| |
| return tegra210_xusb_padctl_enable(padctl); |
| } |
| |
| static int tegra210_usb2_phy_exit(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| |
| return tegra210_xusb_padctl_disable(lane->pad->padctl); |
| } |
| |
| static int tegra210_usb2_phy_power_on(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane); |
| struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| struct tegra210_xusb_padctl *priv; |
| struct tegra_xusb_usb2_port *port; |
| unsigned int index = lane->index; |
| u32 value; |
| int err; |
| |
| port = tegra_xusb_find_usb2_port(padctl, index); |
| if (!port) { |
| dev_err(&phy->dev, "no port found for USB2 lane %u\n", index); |
| return -ENODEV; |
| } |
| |
| priv = to_tegra210_xusb_padctl(padctl); |
| |
| 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) | |
| (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK << |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT)); |
| value |= (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL << |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT); |
| |
| if (tegra_sku_info.revision < TEGRA_REVISION_A02) |
| value |= |
| (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_VAL << |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT); |
| |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_PORT_CAP); |
| value &= ~XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_MASK(index); |
| value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(index); |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_PORT_CAP); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); |
| value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK << |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT) | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI); |
| value |= (priv->fuse.hs_curr_level[index] + |
| usb2->hs_curr_level_offset) << |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT; |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); |
| value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK << |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) | |
| (XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_MASK << |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_SHIFT) | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_OVRD | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_OVRD); |
| value |= (priv->fuse.hs_term_range_adj << |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) | |
| (priv->fuse.rpd_ctrl << |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_SHIFT); |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); |
| |
| value = padctl_readl(padctl, |
| XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(index)); |
| value &= ~(XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_MASK << |
| XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT); |
| value |= XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18; |
| padctl_writel(padctl, value, |
| XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(index)); |
| |
| err = regulator_enable(port->supply); |
| if (err) |
| return err; |
| |
| mutex_lock(&padctl->lock); |
| |
| if (pad->enable > 0) { |
| pad->enable++; |
| mutex_unlock(&padctl->lock); |
| return 0; |
| } |
| |
| err = clk_prepare_enable(pad->clk); |
| if (err) |
| goto disable_regulator; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); |
| value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_MASK << |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_SHIFT) | |
| (XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_MASK << |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_SHIFT)); |
| value |= (XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_VAL << |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_SHIFT) | |
| (XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_VAL << |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_SHIFT); |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| value &= ~XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD; |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| |
| udelay(1); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); |
| value &= ~XUSB_PADCTL_USB2_BIAS_PAD_CTL1_PD_TRK; |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); |
| |
| udelay(50); |
| |
| clk_disable_unprepare(pad->clk); |
| |
| pad->enable++; |
| mutex_unlock(&padctl->lock); |
| |
| return 0; |
| |
| disable_regulator: |
| regulator_disable(port->supply); |
| mutex_unlock(&padctl->lock); |
| return err; |
| } |
| |
| static int tegra210_usb2_phy_power_off(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| struct tegra_xusb_usb2_port *port; |
| u32 value; |
| |
| port = tegra_xusb_find_usb2_port(padctl, lane->index); |
| if (!port) { |
| dev_err(&phy->dev, "no port found for USB2 lane %u\n", |
| lane->index); |
| return -ENODEV; |
| } |
| |
| mutex_lock(&padctl->lock); |
| |
| if (WARN_ON(pad->enable == 0)) |
| goto out; |
| |
| if (--pad->enable > 0) |
| goto out; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| value |= XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD; |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| |
| out: |
| regulator_disable(port->supply); |
| mutex_unlock(&padctl->lock); |
| return 0; |
| } |
| |
| static const struct phy_ops tegra210_usb2_phy_ops = { |
| .init = tegra210_usb2_phy_init, |
| .exit = tegra210_usb2_phy_exit, |
| .power_on = tegra210_usb2_phy_power_on, |
| .power_off = tegra210_usb2_phy_power_off, |
| .owner = THIS_MODULE, |
| }; |
| |
| static struct tegra_xusb_pad * |
| tegra210_usb2_pad_probe(struct tegra_xusb_padctl *padctl, |
| const struct tegra_xusb_pad_soc *soc, |
| struct device_node *np) |
| { |
| struct tegra_xusb_usb2_pad *usb2; |
| struct tegra_xusb_pad *pad; |
| int err; |
| |
| usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL); |
| if (!usb2) |
| return ERR_PTR(-ENOMEM); |
| |
| pad = &usb2->base; |
| pad->ops = &tegra210_usb2_lane_ops; |
| pad->soc = soc; |
| |
| err = tegra_xusb_pad_init(pad, padctl, np); |
| if (err < 0) { |
| kfree(usb2); |
| goto out; |
| } |
| |
| usb2->clk = devm_clk_get(&pad->dev, "trk"); |
| if (IS_ERR(usb2->clk)) { |
| err = PTR_ERR(usb2->clk); |
| dev_err(&pad->dev, "failed to get trk clock: %d\n", err); |
| goto unregister; |
| } |
| |
| err = tegra_xusb_pad_register(pad, &tegra210_usb2_phy_ops); |
| if (err < 0) |
| goto unregister; |
| |
| dev_set_drvdata(&pad->dev, pad); |
| |
| return pad; |
| |
| unregister: |
| device_unregister(&pad->dev); |
| out: |
| return ERR_PTR(err); |
| } |
| |
| static void tegra210_usb2_pad_remove(struct tegra_xusb_pad *pad) |
| { |
| struct tegra_xusb_usb2_pad *usb2 = to_usb2_pad(pad); |
| |
| kfree(usb2); |
| } |
| |
| static const struct tegra_xusb_pad_ops tegra210_usb2_ops = { |
| .probe = tegra210_usb2_pad_probe, |
| .remove = tegra210_usb2_pad_remove, |
| }; |
| |
| static const struct tegra_xusb_pad_soc tegra210_usb2_pad = { |
| .name = "usb2", |
| .num_lanes = ARRAY_SIZE(tegra210_usb2_lanes), |
| .lanes = tegra210_usb2_lanes, |
| .ops = &tegra210_usb2_ops, |
| }; |
| |
| static const char *tegra210_hsic_functions[] = { |
| "snps", |
| "xusb", |
| }; |
| |
| static const struct tegra_xusb_lane_soc tegra210_hsic_lanes[] = { |
| TEGRA210_LANE("hsic-0", 0x004, 14, 0x1, hsic), |
| }; |
| |
| static struct tegra_xusb_lane * |
| tegra210_hsic_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, |
| unsigned int index) |
| { |
| struct tegra_xusb_hsic_lane *hsic; |
| int err; |
| |
| hsic = kzalloc(sizeof(*hsic), GFP_KERNEL); |
| if (!hsic) |
| return ERR_PTR(-ENOMEM); |
| |
| INIT_LIST_HEAD(&hsic->base.list); |
| hsic->base.soc = &pad->soc->lanes[index]; |
| hsic->base.index = index; |
| hsic->base.pad = pad; |
| hsic->base.np = np; |
| |
| err = tegra_xusb_lane_parse_dt(&hsic->base, np); |
| if (err < 0) { |
| kfree(hsic); |
| return ERR_PTR(err); |
| } |
| |
| return &hsic->base; |
| } |
| |
| static void tegra210_hsic_lane_remove(struct tegra_xusb_lane *lane) |
| { |
| struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane); |
| |
| kfree(hsic); |
| } |
| |
| static const struct tegra_xusb_lane_ops tegra210_hsic_lane_ops = { |
| .probe = tegra210_hsic_lane_probe, |
| .remove = tegra210_hsic_lane_remove, |
| }; |
| |
| static int tegra210_hsic_phy_init(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| u32 value; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_PAD_MUX); |
| value &= ~(XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_MASK << |
| XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_SHIFT); |
| value |= XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_XUSB << |
| XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_SHIFT; |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_PAD_MUX); |
| |
| return tegra210_xusb_padctl_enable(padctl); |
| } |
| |
| static int tegra210_hsic_phy_exit(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| |
| return tegra210_xusb_padctl_disable(lane->pad->padctl); |
| } |
| |
| static int tegra210_hsic_phy_power_on(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane); |
| struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| struct tegra210_xusb_padctl *priv; |
| unsigned int index = lane->index; |
| u32 value; |
| int err; |
| |
| priv = to_tegra210_xusb_padctl(padctl); |
| |
| err = regulator_enable(pad->supply); |
| if (err) |
| return err; |
| |
| padctl_writel(padctl, hsic->strobe_trim, |
| XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index)); |
| value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_MASK << |
| XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_SHIFT); |
| value |= (hsic->tx_rtune_p << |
| XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_SHIFT); |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index)); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL2(index)); |
| value &= ~((XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK << |
| XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) | |
| (XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK << |
| XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT)); |
| value |= (hsic->rx_strobe_trim << |
| XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) | |
| (hsic->rx_data_trim << |
| XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT); |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL2(index)); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| value &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_STROBE | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_STROBE | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_STROBE); |
| value |= XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_STROBE; |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| |
| err = clk_prepare_enable(pad->clk); |
| if (err) |
| goto disable; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PAD_TRK_CTL); |
| value &= ~((XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_MASK << |
| XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_SHIFT) | |
| (XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_MASK << |
| XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_SHIFT)); |
| value |= (XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_VAL << |
| XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_SHIFT) | |
| (XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_VAL << |
| XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_SHIFT); |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PAD_TRK_CTL); |
| |
| udelay(1); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PAD_TRK_CTL); |
| value &= ~XUSB_PADCTL_HSIC_PAD_TRK_CTL_PD_TRK; |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PAD_TRK_CTL); |
| |
| udelay(50); |
| |
| clk_disable_unprepare(pad->clk); |
| |
| return 0; |
| |
| disable: |
| regulator_disable(pad->supply); |
| return err; |
| } |
| |
| static int tegra210_hsic_phy_power_off(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| unsigned int index = lane->index; |
| u32 value; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| value |= XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_STROBE | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_STROBE | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA0 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA1 | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_STROBE; |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index)); |
| |
| regulator_disable(pad->supply); |
| |
| return 0; |
| } |
| |
| static const struct phy_ops tegra210_hsic_phy_ops = { |
| .init = tegra210_hsic_phy_init, |
| .exit = tegra210_hsic_phy_exit, |
| .power_on = tegra210_hsic_phy_power_on, |
| .power_off = tegra210_hsic_phy_power_off, |
| .owner = THIS_MODULE, |
| }; |
| |
| static struct tegra_xusb_pad * |
| tegra210_hsic_pad_probe(struct tegra_xusb_padctl *padctl, |
| const struct tegra_xusb_pad_soc *soc, |
| struct device_node *np) |
| { |
| struct tegra_xusb_hsic_pad *hsic; |
| struct tegra_xusb_pad *pad; |
| int err; |
| |
| hsic = kzalloc(sizeof(*hsic), GFP_KERNEL); |
| if (!hsic) |
| return ERR_PTR(-ENOMEM); |
| |
| pad = &hsic->base; |
| pad->ops = &tegra210_hsic_lane_ops; |
| pad->soc = soc; |
| |
| err = tegra_xusb_pad_init(pad, padctl, np); |
| if (err < 0) { |
| kfree(hsic); |
| goto out; |
| } |
| |
| hsic->clk = devm_clk_get(&pad->dev, "trk"); |
| if (IS_ERR(hsic->clk)) { |
| err = PTR_ERR(hsic->clk); |
| dev_err(&pad->dev, "failed to get trk clock: %d\n", err); |
| goto unregister; |
| } |
| |
| err = tegra_xusb_pad_register(pad, &tegra210_hsic_phy_ops); |
| if (err < 0) |
| goto unregister; |
| |
| dev_set_drvdata(&pad->dev, pad); |
| |
| return pad; |
| |
| unregister: |
| device_unregister(&pad->dev); |
| out: |
| return ERR_PTR(err); |
| } |
| |
| static void tegra210_hsic_pad_remove(struct tegra_xusb_pad *pad) |
| { |
| struct tegra_xusb_hsic_pad *hsic = to_hsic_pad(pad); |
| |
| kfree(hsic); |
| } |
| |
| static const struct tegra_xusb_pad_ops tegra210_hsic_ops = { |
| .probe = tegra210_hsic_pad_probe, |
| .remove = tegra210_hsic_pad_remove, |
| }; |
| |
| static const struct tegra_xusb_pad_soc tegra210_hsic_pad = { |
| .name = "hsic", |
| .num_lanes = ARRAY_SIZE(tegra210_hsic_lanes), |
| .lanes = tegra210_hsic_lanes, |
| .ops = &tegra210_hsic_ops, |
| }; |
| |
| static const char *tegra210_pcie_functions[] = { |
| "pcie-x1", |
| "usb3-ss", |
| "sata", |
| "pcie-x4", |
| }; |
| |
| static const struct tegra_xusb_lane_soc tegra210_pcie_lanes[] = { |
| TEGRA210_LANE("pcie-0", 0x028, 12, 0x3, pcie), |
| TEGRA210_LANE("pcie-1", 0x028, 14, 0x3, pcie), |
| TEGRA210_LANE("pcie-2", 0x028, 16, 0x3, pcie), |
| TEGRA210_LANE("pcie-3", 0x028, 18, 0x3, pcie), |
| TEGRA210_LANE("pcie-4", 0x028, 20, 0x3, pcie), |
| TEGRA210_LANE("pcie-5", 0x028, 22, 0x3, pcie), |
| TEGRA210_LANE("pcie-6", 0x028, 24, 0x3, pcie), |
| }; |
| |
| static struct tegra_xusb_lane * |
| tegra210_pcie_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, |
| unsigned int index) |
| { |
| struct tegra_xusb_pcie_lane *pcie; |
| int err; |
| |
| pcie = kzalloc(sizeof(*pcie), GFP_KERNEL); |
| if (!pcie) |
| return ERR_PTR(-ENOMEM); |
| |
| INIT_LIST_HEAD(&pcie->base.list); |
| pcie->base.soc = &pad->soc->lanes[index]; |
| pcie->base.index = index; |
| pcie->base.pad = pad; |
| pcie->base.np = np; |
| |
| err = tegra_xusb_lane_parse_dt(&pcie->base, np); |
| if (err < 0) { |
| kfree(pcie); |
| return ERR_PTR(err); |
| } |
| |
| return &pcie->base; |
| } |
| |
| static void tegra210_pcie_lane_remove(struct tegra_xusb_lane *lane) |
| { |
| struct tegra_xusb_pcie_lane *pcie = to_pcie_lane(lane); |
| |
| kfree(pcie); |
| } |
| |
| static const struct tegra_xusb_lane_ops tegra210_pcie_lane_ops = { |
| .probe = tegra210_pcie_lane_probe, |
| .remove = tegra210_pcie_lane_remove, |
| }; |
| |
| static int tegra210_pcie_phy_init(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| |
| return tegra210_xusb_padctl_enable(lane->pad->padctl); |
| } |
| |
| static int tegra210_pcie_phy_exit(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| |
| return tegra210_xusb_padctl_disable(lane->pad->padctl); |
| } |
| |
| static int tegra210_pcie_phy_power_on(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| u32 value; |
| int err; |
| |
| mutex_lock(&padctl->lock); |
| |
| err = tegra210_pex_uphy_enable(padctl); |
| if (err < 0) |
| goto unlock; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); |
| value |= XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index); |
| padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); |
| |
| unlock: |
| mutex_unlock(&padctl->lock); |
| return err; |
| } |
| |
| static int tegra210_pcie_phy_power_off(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| u32 value; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); |
| value &= ~XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index); |
| padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); |
| |
| tegra210_pex_uphy_disable(padctl); |
| |
| return 0; |
| } |
| |
| static const struct phy_ops tegra210_pcie_phy_ops = { |
| .init = tegra210_pcie_phy_init, |
| .exit = tegra210_pcie_phy_exit, |
| .power_on = tegra210_pcie_phy_power_on, |
| .power_off = tegra210_pcie_phy_power_off, |
| .owner = THIS_MODULE, |
| }; |
| |
| static struct tegra_xusb_pad * |
| tegra210_pcie_pad_probe(struct tegra_xusb_padctl *padctl, |
| const struct tegra_xusb_pad_soc *soc, |
| struct device_node *np) |
| { |
| struct tegra_xusb_pcie_pad *pcie; |
| struct tegra_xusb_pad *pad; |
| int err; |
| |
| pcie = kzalloc(sizeof(*pcie), GFP_KERNEL); |
| if (!pcie) |
| return ERR_PTR(-ENOMEM); |
| |
| pad = &pcie->base; |
| pad->ops = &tegra210_pcie_lane_ops; |
| pad->soc = soc; |
| |
| err = tegra_xusb_pad_init(pad, padctl, np); |
| if (err < 0) { |
| kfree(pcie); |
| goto out; |
| } |
| |
| pcie->pll = devm_clk_get(&pad->dev, "pll"); |
| if (IS_ERR(pcie->pll)) { |
| err = PTR_ERR(pcie->pll); |
| dev_err(&pad->dev, "failed to get PLL: %d\n", err); |
| goto unregister; |
| } |
| |
| pcie->rst = devm_reset_control_get(&pad->dev, "phy"); |
| if (IS_ERR(pcie->rst)) { |
| err = PTR_ERR(pcie->rst); |
| dev_err(&pad->dev, "failed to get PCIe pad reset: %d\n", err); |
| goto unregister; |
| } |
| |
| err = tegra_xusb_pad_register(pad, &tegra210_pcie_phy_ops); |
| if (err < 0) |
| goto unregister; |
| |
| dev_set_drvdata(&pad->dev, pad); |
| |
| return pad; |
| |
| unregister: |
| device_unregister(&pad->dev); |
| out: |
| return ERR_PTR(err); |
| } |
| |
| static void tegra210_pcie_pad_remove(struct tegra_xusb_pad *pad) |
| { |
| struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(pad); |
| |
| kfree(pcie); |
| } |
| |
| static const struct tegra_xusb_pad_ops tegra210_pcie_ops = { |
| .probe = tegra210_pcie_pad_probe, |
| .remove = tegra210_pcie_pad_remove, |
| }; |
| |
| static const struct tegra_xusb_pad_soc tegra210_pcie_pad = { |
| .name = "pcie", |
| .num_lanes = ARRAY_SIZE(tegra210_pcie_lanes), |
| .lanes = tegra210_pcie_lanes, |
| .ops = &tegra210_pcie_ops, |
| }; |
| |
| static const struct tegra_xusb_lane_soc tegra210_sata_lanes[] = { |
| TEGRA210_LANE("sata-0", 0x028, 30, 0x3, pcie), |
| }; |
| |
| static struct tegra_xusb_lane * |
| tegra210_sata_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, |
| unsigned int index) |
| { |
| struct tegra_xusb_sata_lane *sata; |
| int err; |
| |
| sata = kzalloc(sizeof(*sata), GFP_KERNEL); |
| if (!sata) |
| return ERR_PTR(-ENOMEM); |
| |
| INIT_LIST_HEAD(&sata->base.list); |
| sata->base.soc = &pad->soc->lanes[index]; |
| sata->base.index = index; |
| sata->base.pad = pad; |
| sata->base.np = np; |
| |
| err = tegra_xusb_lane_parse_dt(&sata->base, np); |
| if (err < 0) { |
| kfree(sata); |
| return ERR_PTR(err); |
| } |
| |
| return &sata->base; |
| } |
| |
| static void tegra210_sata_lane_remove(struct tegra_xusb_lane *lane) |
| { |
| struct tegra_xusb_sata_lane *sata = to_sata_lane(lane); |
| |
| kfree(sata); |
| } |
| |
| static const struct tegra_xusb_lane_ops tegra210_sata_lane_ops = { |
| .probe = tegra210_sata_lane_probe, |
| .remove = tegra210_sata_lane_remove, |
| }; |
| |
| static int tegra210_sata_phy_init(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| |
| return tegra210_xusb_padctl_enable(lane->pad->padctl); |
| } |
| |
| static int tegra210_sata_phy_exit(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| |
| return tegra210_xusb_padctl_disable(lane->pad->padctl); |
| } |
| |
| static int tegra210_sata_phy_power_on(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| u32 value; |
| int err; |
| |
| mutex_lock(&padctl->lock); |
| |
| err = tegra210_sata_uphy_enable(padctl, false); |
| if (err < 0) |
| goto unlock; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); |
| value |= XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index); |
| padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); |
| |
| unlock: |
| mutex_unlock(&padctl->lock); |
| return err; |
| } |
| |
| static int tegra210_sata_phy_power_off(struct phy *phy) |
| { |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| u32 value; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); |
| value &= ~XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index); |
| padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); |
| |
| tegra210_sata_uphy_disable(lane->pad->padctl); |
| |
| return 0; |
| } |
| |
| static const struct phy_ops tegra210_sata_phy_ops = { |
| .init = tegra210_sata_phy_init, |
| .exit = tegra210_sata_phy_exit, |
| .power_on = tegra210_sata_phy_power_on, |
| .power_off = tegra210_sata_phy_power_off, |
| .owner = THIS_MODULE, |
| }; |
| |
| static struct tegra_xusb_pad * |
| tegra210_sata_pad_probe(struct tegra_xusb_padctl *padctl, |
| const struct tegra_xusb_pad_soc *soc, |
| struct device_node *np) |
| { |
| struct tegra_xusb_sata_pad *sata; |
| struct tegra_xusb_pad *pad; |
| int err; |
| |
| sata = kzalloc(sizeof(*sata), GFP_KERNEL); |
| if (!sata) |
| return ERR_PTR(-ENOMEM); |
| |
| pad = &sata->base; |
| pad->ops = &tegra210_sata_lane_ops; |
| pad->soc = soc; |
| |
| err = tegra_xusb_pad_init(pad, padctl, np); |
| if (err < 0) { |
| kfree(sata); |
| goto out; |
| } |
| |
| sata->rst = devm_reset_control_get(&pad->dev, "phy"); |
| if (IS_ERR(sata->rst)) { |
| err = PTR_ERR(sata->rst); |
| dev_err(&pad->dev, "failed to get SATA pad reset: %d\n", err); |
| goto unregister; |
| } |
| |
| err = tegra_xusb_pad_register(pad, &tegra210_sata_phy_ops); |
| if (err < 0) |
| goto unregister; |
| |
| dev_set_drvdata(&pad->dev, pad); |
| |
| return pad; |
| |
| unregister: |
| device_unregister(&pad->dev); |
| out: |
| return ERR_PTR(err); |
| } |
| |
| static void tegra210_sata_pad_remove(struct tegra_xusb_pad *pad) |
| { |
| struct tegra_xusb_sata_pad *sata = to_sata_pad(pad); |
| |
| kfree(sata); |
| } |
| |
| static const struct tegra_xusb_pad_ops tegra210_sata_ops = { |
| .probe = tegra210_sata_pad_probe, |
| .remove = tegra210_sata_pad_remove, |
| }; |
| |
| static const struct tegra_xusb_pad_soc tegra210_sata_pad = { |
| .name = "sata", |
| .num_lanes = ARRAY_SIZE(tegra210_sata_lanes), |
| .lanes = tegra210_sata_lanes, |
| .ops = &tegra210_sata_ops, |
| }; |
| |
| static const struct tegra_xusb_pad_soc * const tegra210_pads[] = { |
| &tegra210_usb2_pad, |
| &tegra210_hsic_pad, |
| &tegra210_pcie_pad, |
| &tegra210_sata_pad, |
| }; |
| |
| static int tegra210_usb2_port_enable(struct tegra_xusb_port *port) |
| { |
| return 0; |
| } |
| |
| static void tegra210_usb2_port_disable(struct tegra_xusb_port *port) |
| { |
| } |
| |
| static struct tegra_xusb_lane * |
| tegra210_usb2_port_map(struct tegra_xusb_port *port) |
| { |
| return tegra_xusb_find_lane(port->padctl, "usb2", port->index); |
| } |
| |
| static const struct tegra_xusb_port_ops tegra210_usb2_port_ops = { |
| .enable = tegra210_usb2_port_enable, |
| .disable = tegra210_usb2_port_disable, |
| .map = tegra210_usb2_port_map, |
| }; |
| |
| static int tegra210_hsic_port_enable(struct tegra_xusb_port *port) |
| { |
| return 0; |
| } |
| |
| static void tegra210_hsic_port_disable(struct tegra_xusb_port *port) |
| { |
| } |
| |
| static struct tegra_xusb_lane * |
| tegra210_hsic_port_map(struct tegra_xusb_port *port) |
| { |
| return tegra_xusb_find_lane(port->padctl, "hsic", port->index); |
| } |
| |
| static const struct tegra_xusb_port_ops tegra210_hsic_port_ops = { |
| .enable = tegra210_hsic_port_enable, |
| .disable = tegra210_hsic_port_disable, |
| .map = tegra210_hsic_port_map, |
| }; |
| |
| static int tegra210_usb3_port_enable(struct tegra_xusb_port *port) |
| { |
| struct tegra_xusb_usb3_port *usb3 = to_usb3_port(port); |
| struct tegra_xusb_padctl *padctl = port->padctl; |
| struct tegra_xusb_lane *lane = usb3->base.lane; |
| unsigned int index = port->index; |
| u32 value; |
| int err; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP); |
| |
| if (!usb3->internal) |
| value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index); |
| else |
| value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index); |
| |
| value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(index); |
| value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(index, usb3->port); |
| padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP); |
| |
| /* |
| * TODO: move this code into the PCIe/SATA PHY ->power_on() callbacks |
| * and conditionalize based on mux function? This seems to work, but |
| * might not be the exact proper sequence. |
| */ |
| err = regulator_enable(usb3->supply); |
| if (err < 0) |
| return err; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_USB3_PADX_ECTL1(index)); |
| value &= ~(XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_MASK << |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_SHIFT); |
| value |= XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_VAL << |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_SHIFT; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_USB3_PADX_ECTL1(index)); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_USB3_PADX_ECTL2(index)); |
| value &= ~(XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_MASK << |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_SHIFT); |
| value |= XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_VAL << |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_SHIFT; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_USB3_PADX_ECTL2(index)); |
| |
| padctl_writel(padctl, XUSB_PADCTL_UPHY_USB3_PAD_ECTL3_RX_DFE_VAL, |
| XUSB_PADCTL_UPHY_USB3_PADX_ECTL3(index)); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_USB3_PADX_ECTL4(index)); |
| value &= ~(XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_MASK << |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_SHIFT); |
| value |= XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_VAL << |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_SHIFT; |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_USB3_PADX_ECTL4(index)); |
| |
| padctl_writel(padctl, XUSB_PADCTL_UPHY_USB3_PAD_ECTL6_RX_EQ_CTRL_H_VAL, |
| XUSB_PADCTL_UPHY_USB3_PADX_ECTL6(index)); |
| |
| if (lane->pad == padctl->sata) |
| err = tegra210_sata_uphy_enable(padctl, true); |
| else |
| err = tegra210_pex_uphy_enable(padctl); |
| |
| if (err) { |
| dev_err(&port->dev, "%s: failed to enable UPHY: %d\n", |
| __func__, err); |
| return err; |
| } |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN(index); |
| 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(index); |
| 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(index); |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| |
| return 0; |
| } |
| |
| static void tegra210_usb3_port_disable(struct tegra_xusb_port *port) |
| { |
| struct tegra_xusb_usb3_port *usb3 = to_usb3_port(port); |
| struct tegra_xusb_padctl *padctl = port->padctl; |
| struct tegra_xusb_lane *lane = port->lane; |
| unsigned int index = port->index; |
| u32 value; |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(index); |
| 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(index); |
| 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(index); |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| |
| if (lane->pad == padctl->sata) |
| tegra210_sata_uphy_disable(padctl); |
| else |
| tegra210_pex_uphy_disable(padctl); |
| |
| regulator_disable(usb3->supply); |
| |
| value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP); |
| value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(index); |
| value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(index, 0x7); |
| padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP); |
| } |
| |
| static const struct tegra_xusb_lane_map tegra210_usb3_map[] = { |
| { 0, "pcie", 6 }, |
| { 1, "pcie", 5 }, |
| { 2, "pcie", 0 }, |
| { 2, "pcie", 3 }, |
| { 3, "pcie", 4 }, |
| { 3, "pcie", 4 }, |
| { 0, NULL, 0 } |
| }; |
| |
| static struct tegra_xusb_lane * |
| tegra210_usb3_port_map(struct tegra_xusb_port *port) |
| { |
| return tegra_xusb_port_find_lane(port, tegra210_usb3_map, "usb3-ss"); |
| } |
| |
| static const struct tegra_xusb_port_ops tegra210_usb3_port_ops = { |
| .enable = tegra210_usb3_port_enable, |
| .disable = tegra210_usb3_port_disable, |
| .map = tegra210_usb3_port_map, |
| }; |
| |
| static int |
| tegra210_xusb_read_fuse_calibration(struct tegra210_xusb_fuse_calibration *fuse) |
| { |
| unsigned int i; |
| u32 value; |
| int err; |
| |
| err = tegra_fuse_readl(TEGRA_FUSE_SKU_CALIB_0, &value); |
| if (err < 0) |
| return err; |
| |
| for (i = 0; i < ARRAY_SIZE(fuse->hs_curr_level); i++) { |
| fuse->hs_curr_level[i] = |
| (value >> FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(i)) & |
| FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK; |
| } |
| |
| fuse->hs_term_range_adj = |
| (value >> FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT) & |
| FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK; |
| |
| err = tegra_fuse_readl(TEGRA_FUSE_USB_CALIB_EXT_0, &value); |
| if (err < 0) |
| return err; |
| |
| fuse->rpd_ctrl = |
| (value >> FUSE_USB_CALIB_EXT_RPD_CTRL_SHIFT) & |
| FUSE_USB_CALIB_EXT_RPD_CTRL_MASK; |
| |
| return 0; |
| } |
| |
| static struct tegra_xusb_padctl * |
| tegra210_xusb_padctl_probe(struct device *dev, |
| const struct tegra_xusb_padctl_soc *soc) |
| { |
| struct tegra210_xusb_padctl *padctl; |
| int err; |
| |
| padctl = devm_kzalloc(dev, sizeof(*padctl), GFP_KERNEL); |
| if (!padctl) |
| return ERR_PTR(-ENOMEM); |
| |
| padctl->base.dev = dev; |
| padctl->base.soc = soc; |
| |
| err = tegra210_xusb_read_fuse_calibration(&padctl->fuse); |
| if (err < 0) |
| return ERR_PTR(err); |
| |
| return &padctl->base; |
| } |
| |
| static void tegra210_xusb_padctl_remove(struct tegra_xusb_padctl *padctl) |
| { |
| } |
| |
| static const struct tegra_xusb_padctl_ops tegra210_xusb_padctl_ops = { |
| .probe = tegra210_xusb_padctl_probe, |
| .remove = tegra210_xusb_padctl_remove, |
| .usb3_set_lfps_detect = tegra210_usb3_set_lfps_detect, |
| .hsic_set_idle = tegra210_hsic_set_idle, |
| }; |
| |
| static const char * const tegra210_xusb_padctl_supply_names[] = { |
| "avdd-pll-utmip", |
| "avdd-pll-uerefe", |
| "dvdd-pex-pll", |
| "hvdd-pex-pll-e", |
| }; |
| |
| const struct tegra_xusb_padctl_soc tegra210_xusb_padctl_soc = { |
| .num_pads = ARRAY_SIZE(tegra210_pads), |
| .pads = tegra210_pads, |
| .ports = { |
| .usb2 = { |
| .ops = &tegra210_usb2_port_ops, |
| .count = 4, |
| }, |
| .hsic = { |
| .ops = &tegra210_hsic_port_ops, |
| .count = 1, |
| }, |
| .usb3 = { |
| .ops = &tegra210_usb3_port_ops, |
| .count = 4, |
| }, |
| }, |
| .ops = &tegra210_xusb_padctl_ops, |
| .supply_names = tegra210_xusb_padctl_supply_names, |
| .num_supplies = ARRAY_SIZE(tegra210_xusb_padctl_supply_names), |
| }; |
| EXPORT_SYMBOL_GPL(tegra210_xusb_padctl_soc); |
| |
| MODULE_AUTHOR("Andrew Bresticker <abrestic@chromium.org>"); |
| MODULE_DESCRIPTION("NVIDIA Tegra 210 XUSB Pad Controller driver"); |
| MODULE_LICENSE("GPL v2"); |