Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934151AbaFRGSt (ORCPT ); Wed, 18 Jun 2014 02:18:49 -0400 Received: from mail-vc0-f201.google.com ([209.85.220.201]:35973 "EHLO mail-vc0-f201.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756728AbaFRGQi (ORCPT ); Wed, 18 Jun 2014 02:16:38 -0400 From: Andrew Bresticker To: devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Randy Dunlap , Stephen Warren , Thierry Reding , Russell King , Linus Walleij , Greg Kroah-Hartman , Mathias Nyman , Grant Likely , Alan Stern , Kishon Vijay Abraham I , Arnd Bergmann , Andrew Bresticker Subject: [PATCH v1 4/9] pinctrl: tegra-xusb: Add USB PHY support Date: Tue, 17 Jun 2014 23:16:15 -0700 Message-Id: <1403072180-4944-5-git-send-email-abrestic@chromium.org> X-Mailer: git-send-email 2.0.0.526.g5318336 In-Reply-To: <1403072180-4944-1-git-send-email-abrestic@chromium.org> References: <1403072180-4944-1-git-send-email-abrestic@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In addition to the PCIe and SATA PHYs, the XUSB pad controller also supports 3 UTMI, 2 HSIC, and 2 USB3 PHYs. Each USB3 PHY uses a single PCIe or SATA lane and is mapped to one of the three UTMI ports. Signed-off-by: Andrew Bresticker --- drivers/pinctrl/pinctrl-tegra-xusb.c | 1106 +++++++++++++++++++++++++++++++++- 1 file changed, 1089 insertions(+), 17 deletions(-) diff --git a/drivers/pinctrl/pinctrl-tegra-xusb.c b/drivers/pinctrl/pinctrl-tegra-xusb.c index 2405646..67056ab 100644 --- a/drivers/pinctrl/pinctrl-tegra-xusb.c +++ b/drivers/pinctrl/pinctrl-tegra-xusb.c @@ -14,22 +14,55 @@ #include #include #include +#include #include #include #include #include #include +#include #include +#include +#include #include #include "core.h" #include "pinctrl-utils.h" +#define TEGRA_XUSB_PADCTL_USB3_PORTS 2 +#define TEGRA_XUSB_PADCTL_UTMI_PORTS 3 +#define TEGRA_XUSB_PADCTL_HSIC_PORTS 2 + +#define FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(x) ((x) ? 15 : 0) +#define FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK 0x3f +#define FUSE_SKU_CALIB_HS_IREF_CAP_SHIFT 13 +#define FUSE_SKU_CALIB_HS_IREF_CAP_MASK 0x3 +#define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_SHIFT 11 +#define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_MASK 0x3 +#define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT 7 +#define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK 0xf + +#define XUSB_PADCTL_USB2_PORT_CAP 0x008 +#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(x) ((x) * 4) +#define XUSB_PADCTL_USB2_PORT_CAP_PORT_CAP_MASK 0x3 +#define XUSB_PADCTL_USB2_PORT_CAP_DISABLED 0x0 +#define XUSB_PADCTL_USB2_PORT_CAP_HOST 0x1 +#define XUSB_PADCTL_USB2_PORT_CAP_DEVICE 0x2 +#define XUSB_PADCTL_USB2_PORT_CAP_OTG 0x3 + +#define XUSB_PADCTL_SS_PORT_MAP 0x014 +#define XUSB_PADCTL_SS_PORT_MAP_PORTX_SHIFT(x) ((x) * 4) +#define XUSB_PADCTL_SS_PORT_MAP_PORT_MASK 0x7 + #define XUSB_PADCTL_ELPG_PROGRAM 0x01c #define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN (1 << 26) #define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 25) #define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN (1 << 24) +#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(x) (1 << (18 + (x) * 4)) +#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(x) \ + (1 << (17 + (x) * 4)) +#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(x) (1 << (16 + (x) * 4)) #define XUSB_PADCTL_IOPHY_PLL_P0_CTL1 0x040 #define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET (1 << 19) @@ -41,6 +74,104 @@ #define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN (1 << 5) #define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL (1 << 4) +#define XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(x) (0x058 + (x) * 4) +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT 24 +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_MASK 0xff +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT 16 +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK 0x3f +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT 8 +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK 0x3f +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT 8 +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_MASK 0xffff +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT 4 +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_MASK 0x7 + +#define XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(x) (0x068 + (x) * 4) +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT 24 +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK 0x1f +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT 16 +#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK 0x7f + +#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL2(x) ((x) < 2 ? 0x078 + (x) * 4 : \ + 0x0f8 + (x) * 4) +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT 28 +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_MASK 0x3 + +#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL5(x) ((x) < 2 ? 0x090 + (x) * 4 : \ + 0x11c + (x) * 4) +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL5_RX_QEYE_EN (1 << 8) + +#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(x) ((x) < 2 ? 0x098 + (x) * 4 : \ + 0x128 + (x) * 4) +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT 24 +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK 0x3f +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK 0x1f +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK 0x7f +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT 16 +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK 0xff +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z 0x21 +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP 0x32 +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP 0x33 +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z 0x48 +#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z 0xa1 + +#define XUSB_PADCTL_USB2_OTG_PADX_CTL0(x) (0x0a0 + (x) * 4) +#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI (1 << 21) +#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 (1 << 20) +#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD (1 << 19) +#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT 14 +#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK 0x3 +#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT 6 +#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_MASK 0x3f +#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) (0x0ac + (x) * 4) +#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT 9 +#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_MASK 0x3 +#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT 3 +#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK 0x7 +#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR (1 << 2) +#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP (1 << 1) +#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP (1 << 0) + +#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0 0x0b8 +#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD (1 << 12) +#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT 2 +#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK 0x7 +#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT 0 +#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK 0x3 + +#define XUSB_PADCTL_HSIC_PADX_CTL0(x) (0x0c0 + (x) * 4) +#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT 12 +#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK 0x7 +#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT 8 +#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK 0x7 +#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT 4 +#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK 0x7 +#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT 0 +#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK 0x7 + +#define XUSB_PADCTL_HSIC_PADX_CTL1(x) (0x0c8 + (x) * 4) +#define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE (1 << 10) +#define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA (1 << 9) +#define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE (1 << 8) +#define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA (1 << 7) +#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI (1 << 5) +#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX (1 << 4) +#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX (1 << 3) +#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX (1 << 2) +#define XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN (1 << 0) + +#define XUSB_PADCTL_HSIC_PADX_CTL2(x) (0x0d0 + (x) * 4) +#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT 4 +#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK 0x7 +#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT 0 +#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK 0x7 + +#define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL 0x0e0 +#define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL_STRB_TRIM_MASK 0x1f + #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1 0x138 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET (1 << 27) #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE (1 << 24) @@ -52,6 +183,12 @@ #define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD (1 << 1) #define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ (1 << 0) +#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL2 0x14c + +#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL5 0x158 + +#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6 0x15c + struct tegra_xusb_padctl_function { const char *name; const char * const *groups; @@ -72,6 +209,16 @@ struct tegra_xusb_padctl_soc { const struct tegra_xusb_padctl_lane *lanes; unsigned int num_lanes; + + u32 rx_wander; + u32 rx_eq; + u32 cdr_cntl; + u32 dfe_cntl; + u32 hs_slew; + u32 ls_rslew[TEGRA_XUSB_PADCTL_UTMI_PORTS]; + u32 hs_discon_level; + u32 spare_in; + int hsic_port_offset; }; struct tegra_xusb_padctl_lane { @@ -86,6 +233,22 @@ struct tegra_xusb_padctl_lane { unsigned int num_funcs; }; +struct tegra_xusb_fuse_calibration { + u32 hs_curr_level[TEGRA_XUSB_PADCTL_UTMI_PORTS]; + u32 hs_iref_cap; + u32 hs_term_range_adj; + u32 hs_squelch_level; +}; + +struct tegra_xusb_usb3_port { + unsigned int lane; + bool context_saved; + u32 tap1_val; + u32 amp_val; + u32 ctle_z_val; + u32 ctle_g_val; +}; + struct tegra_xusb_padctl { struct device *dev; void __iomem *regs; @@ -93,13 +256,22 @@ struct tegra_xusb_padctl { struct reset_control *rst; const struct tegra_xusb_padctl_soc *soc; + struct tegra_xusb_fuse_calibration calib; struct pinctrl_dev *pinctrl; struct pinctrl_desc desc; struct phy_provider *provider; - struct phy *phys[2]; + struct phy *phys[9]; unsigned int enable; + + struct tegra_xusb_mbox *mbox; + struct notifier_block mbox_nb; + + struct tegra_xusb_usb3_port usb3_ports[TEGRA_XUSB_PADCTL_USB3_PORTS]; + unsigned int utmi_enable; + struct regulator *vbus[TEGRA_XUSB_PADCTL_UTMI_PORTS]; + struct regulator *vddio_hsic; }; static inline void padctl_writel(struct tegra_xusb_padctl *padctl, u32 value, @@ -114,6 +286,42 @@ static inline u32 padctl_readl(struct tegra_xusb_padctl *padctl, return readl(padctl->regs + offset); } +#define PIN_OTG_0 0 +#define PIN_OTG_1 1 +#define PIN_OTG_2 2 +#define PIN_ULPI_0 3 +#define PIN_HSIC_0 4 +#define PIN_HSIC_1 5 +#define PIN_PCIE_0 6 +#define PIN_PCIE_1 7 +#define PIN_PCIE_2 8 +#define PIN_PCIE_3 9 +#define PIN_PCIE_4 10 +#define PIN_SATA_0 11 + +static inline bool is_hsic_lane(unsigned int lane) +{ + return lane >= PIN_HSIC_0 && lane <= PIN_HSIC_1; +} + +static inline bool is_pcie_sata_lane(unsigned int lane) +{ + return lane >= PIN_PCIE_0 && lane <= PIN_SATA_0; +} + +static int lane_to_usb3_port(struct tegra_xusb_padctl *padctl, + unsigned int lane) +{ + int i; + + for (i = 0; i < TEGRA_XUSB_PADCTL_USB3_PORTS; i++) { + if (padctl->usb3_ports[i].lane == lane) + return i; + } + + return -1; +} + static int tegra_xusb_padctl_get_groups_count(struct pinctrl_dev *pinctrl) { struct tegra_xusb_padctl *padctl = pinctrl_dev_get_drvdata(pinctrl); @@ -131,6 +339,16 @@ static const char *tegra_xusb_padctl_get_group_name(struct pinctrl_dev *pinctrl, enum tegra_xusb_padctl_param { TEGRA_XUSB_PADCTL_IDDQ, + TEGRA_XUSB_PADCTL_USB3_PORT_NUM, + TEGRA_XUSB_PADCTL_USB2_PORT_NUM, + TEGRA_XUSB_PADCTL_HSIC_STROBE_TRIM, + TEGRA_XUSB_PADCTL_HSIC_RX_STROBE_TRIM, + TEGRA_XUSB_PADCTL_HSIC_RX_DATA_TRIM, + TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEN, + TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEP, + TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWN, + TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWP, + TEGRA_XUSB_PADCTL_HSIC_AUTO_TERM, }; static const struct tegra_xusb_padctl_property { @@ -138,6 +356,16 @@ static const struct tegra_xusb_padctl_property { enum tegra_xusb_padctl_param param; } properties[] = { { "nvidia,iddq", TEGRA_XUSB_PADCTL_IDDQ }, + { "nvidia,usb3-port-num", TEGRA_XUSB_PADCTL_USB3_PORT_NUM }, + { "nvidia,usb2-port-num", TEGRA_XUSB_PADCTL_USB2_PORT_NUM }, + { "nvidia,hsic-strobe-trim", TEGRA_XUSB_PADCTL_HSIC_STROBE_TRIM }, + { "nvidia,hsic-rx-strobe-trim", TEGRA_XUSB_PADCTL_HSIC_RX_STROBE_TRIM }, + { "nvidia,hsic-rx-data-trim", TEGRA_XUSB_PADCTL_HSIC_RX_DATA_TRIM }, + { "nvidia,hsic-tx-rtune-n", TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEN }, + { "nvidia,hsic-tx-rtune-p", TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEP }, + { "nvidia,hsic-tx-rslew-n", TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWN }, + { "nvidia,hsic-tx-rslew-p", TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWP }, + { "nvidia,hsic-auto-term", TEGRA_XUSB_PADCTL_HSIC_AUTO_TERM }, }; #define TEGRA_XUSB_PADCTL_PACK(param, value) ((param) << 16 | (value)) @@ -321,6 +549,7 @@ static int tegra_xusb_padctl_pinconf_group_get(struct pinctrl_dev *pinctrl, struct tegra_xusb_padctl *padctl = pinctrl_dev_get_drvdata(pinctrl); const struct tegra_xusb_padctl_lane *lane; enum tegra_xusb_padctl_param param; + int port; u32 value; param = TEGRA_XUSB_PADCTL_UNPACK_PARAM(*config); @@ -330,7 +559,125 @@ static int tegra_xusb_padctl_pinconf_group_get(struct pinctrl_dev *pinctrl, case TEGRA_XUSB_PADCTL_IDDQ: value = padctl_readl(padctl, lane->offset); value = (value >> lane->iddq) & 0x1; - *config = TEGRA_XUSB_PADCTL_PACK(param, value); + break; + + case TEGRA_XUSB_PADCTL_USB3_PORT_NUM: + value = lane_to_usb3_port(padctl, group); + if (value < 0) { + dev_err(padctl->dev, + "Lane %d not mapped to USB3 port\n", group); + return -EINVAL; + } + break; + + case TEGRA_XUSB_PADCTL_USB2_PORT_NUM: + port = lane_to_usb3_port(padctl, group); + if (port < 0) { + dev_err(padctl->dev, + "Lane %d not mapped to USB2 port\n", group); + return -EINVAL; + } + + value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP) >> + XUSB_PADCTL_SS_PORT_MAP_PORTX_SHIFT(port); + value &= XUSB_PADCTL_SS_PORT_MAP_PORT_MASK; + break; + + case TEGRA_XUSB_PADCTL_HSIC_STROBE_TRIM: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", group); + return -EINVAL; + } + + value = padctl_readl(padctl, + XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL); + value &= XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL_STRB_TRIM_MASK; + break; + + case TEGRA_XUSB_PADCTL_HSIC_RX_STROBE_TRIM: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL2(port)) >> + XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT; + value &= XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK; + break; + + case TEGRA_XUSB_PADCTL_HSIC_RX_DATA_TRIM: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL2(port)) >> + XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT; + value &= XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK; + break; + + case TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEN: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(port)) >> + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT; + value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK; + break; + + case TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEP: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(port)) >> + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT; + value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK; + break; + + case TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWN: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(port)) >> + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT; + value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK; + break; + + case TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWP: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(port)) >> + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT; + value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK; + break; + + case TEGRA_XUSB_PADCTL_HSIC_AUTO_TERM: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(port)); + if (value & XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN) + value = 1; + else + value = 0; break; default: @@ -339,6 +686,7 @@ static int tegra_xusb_padctl_pinconf_group_get(struct pinctrl_dev *pinctrl, return -ENOTSUPP; } + *config = TEGRA_XUSB_PADCTL_PACK(param, value); return 0; } @@ -351,7 +699,7 @@ static int tegra_xusb_padctl_pinconf_group_set(struct pinctrl_dev *pinctrl, const struct tegra_xusb_padctl_lane *lane; enum tegra_xusb_padctl_param param; unsigned long value; - unsigned int i; + unsigned int i, port; u32 regval; lane = &padctl->soc->lanes[group]; @@ -372,6 +720,193 @@ static int tegra_xusb_padctl_pinconf_group_set(struct pinctrl_dev *pinctrl, padctl_writel(padctl, regval, lane->offset); break; + case TEGRA_XUSB_PADCTL_USB3_PORT_NUM: + if (value >= TEGRA_XUSB_PADCTL_USB3_PORTS) { + dev_err(padctl->dev, "Invalid USB3 port: %lu\n", + value); + return -EINVAL; + } + if (!is_pcie_sata_lane(group)) { + dev_err(padctl->dev, + "USB3 port not applicable for pin %d\n", + group); + return -EINVAL; + } + padctl->usb3_ports[value].lane = group; + break; + + case TEGRA_XUSB_PADCTL_USB2_PORT_NUM: + if (value >= TEGRA_XUSB_PADCTL_UTMI_PORTS) { + dev_err(padctl->dev, "Invalid USB2 port: %lu\n", + value); + return -EINVAL; + } + if (!is_pcie_sata_lane(group)) { + dev_err(padctl->dev, + "USB2 port not applicable for pin %d\n", + group); + return -EINVAL; + } + port = lane_to_usb3_port(padctl, group); + if (port < 0) { + dev_err(padctl->dev, + "Pin %d not mapped to USB3 port\n", + group); + break; + } + + regval = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP); + regval &= ~(XUSB_PADCTL_SS_PORT_MAP_PORT_MASK << + XUSB_PADCTL_SS_PORT_MAP_PORTX_SHIFT(port)); + regval |= value << + XUSB_PADCTL_SS_PORT_MAP_PORTX_SHIFT(port); + padctl_writel(padctl, regval, XUSB_PADCTL_SS_PORT_MAP); + break; + + case TEGRA_XUSB_PADCTL_HSIC_STROBE_TRIM: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", + group); + return -EINVAL; + } + + value &= XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL_STRB_TRIM_MASK; + padctl_writel(padctl, value, + XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL); + break; + + case TEGRA_XUSB_PADCTL_HSIC_RX_STROBE_TRIM: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", + group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value &= XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK; + regval = padctl_readl(padctl, + XUSB_PADCTL_HSIC_PADX_CTL2(port)); + regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK << + XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT); + regval |= value << + XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT; + padctl_writel(padctl, regval, + XUSB_PADCTL_HSIC_PADX_CTL2(port)); + break; + + case TEGRA_XUSB_PADCTL_HSIC_RX_DATA_TRIM: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", + group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value &= XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK; + regval = padctl_readl(padctl, + XUSB_PADCTL_HSIC_PADX_CTL2(port)); + regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK << + XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT); + regval |= value << + XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT; + padctl_writel(padctl, regval, + XUSB_PADCTL_HSIC_PADX_CTL2(port)); + break; + + case TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEN: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", + group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK; + regval = padctl_readl(padctl, + XUSB_PADCTL_HSIC_PADX_CTL0(port)); + regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK << + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT); + regval |= value << + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT; + padctl_writel(padctl, regval, + XUSB_PADCTL_HSIC_PADX_CTL0(port)); + break; + + case TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEP: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", + group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK; + regval = padctl_readl(padctl, + XUSB_PADCTL_HSIC_PADX_CTL0(port)); + regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK << + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT); + regval |= value << + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT; + padctl_writel(padctl, regval, + XUSB_PADCTL_HSIC_PADX_CTL0(port)); + break; + + case TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWN: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", + group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK; + regval = padctl_readl(padctl, + XUSB_PADCTL_HSIC_PADX_CTL0(port)); + regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK << + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT); + regval |= value << + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT; + padctl_writel(padctl, regval, + XUSB_PADCTL_HSIC_PADX_CTL0(port)); + break; + + case TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWP: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", + group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK; + regval = padctl_readl(padctl, + XUSB_PADCTL_HSIC_PADX_CTL0(port)); + regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK << + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT); + regval |= value << + XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT; + padctl_writel(padctl, regval, + XUSB_PADCTL_HSIC_PADX_CTL0(port)); + break; + + case TEGRA_XUSB_PADCTL_HSIC_AUTO_TERM: + if (!is_hsic_lane(group)) { + dev_err(padctl->dev, "Pin %d not an HSIC\n", + group); + return -EINVAL; + } + + port = group - PIN_HSIC_0; + regval = padctl_readl(padctl, + XUSB_PADCTL_HSIC_PADX_CTL1(port)); + if (!value) + regval &= ~XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN; + else + regval |= XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN; + padctl_writel(padctl, regval, + XUSB_PADCTL_HSIC_PADX_CTL1(port)); + break; + default: dev_err(padctl->dev, "invalid configuration parameter: %04x\n", @@ -595,6 +1130,459 @@ static const struct phy_ops sata_phy_ops = { .owner = THIS_MODULE, }; +static int usb3_phy_to_port(struct phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy); + int i; + + for (i = 0; i < TEGRA_XUSB_PADCTL_USB3_PORTS; i++) { + if (phy == padctl->phys[TEGRA_XUSB_PADCTL_USB3_P0 + i]) + break; + } + BUG_ON(i == TEGRA_XUSB_PADCTL_USB3_PORTS); + + return i; +} + +static int usb3_phy_power_on(struct phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy); + int port = usb3_phy_to_port(phy); + int lane = padctl->usb3_ports[port].lane; + u32 value, offset; + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(port)); + value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT) | + (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT) | + (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT)); + value |= (padctl->soc->rx_wander << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT) | + (padctl->soc->cdr_cntl << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT) | + (padctl->soc->rx_eq << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT); + if (padctl->usb3_ports[port].context_saved) { + value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) | + (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT)); + value |= (padctl->usb3_ports[port].ctle_g_val << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) | + (padctl->usb3_ports[port].ctle_z_val << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT); + } + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(port)); + + value = padctl->soc->dfe_cntl; + if (padctl->usb3_ports[port].context_saved) { + value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) | + (XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT)); + value |= (padctl->usb3_ports[port].tap1_val << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) | + (padctl->usb3_ports[port].amp_val << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT); + } + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(port)); + + offset = (lane == PIN_SATA_0) ? XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL2 : + XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL2(lane - PIN_PCIE_0); + value = padctl_readl(padctl, offset); + value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_MASK << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT); + value |= padctl->soc->spare_in << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT; + padctl_writel(padctl, value, offset); + + offset = (lane == PIN_SATA_0) ? XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL5 : + XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL5(lane - PIN_PCIE_0); + value = padctl_readl(padctl, offset); + value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL5_RX_QEYE_EN; + padctl_writel(padctl, value, offset); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + usleep_range(100, 200); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(port); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + return 0; +} + +static int usb3_phy_power_off(struct phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy); + int port = usb3_phy_to_port(phy); + u32 value; + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + usleep_range(100, 200); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + usleep_range(250, 350); + + value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); + value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(port); + padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); + + return 0; +} + +static void usb3_phy_save_context(struct tegra_xusb_padctl *padctl, int port) +{ + int lane = padctl->usb3_ports[port].lane; + u32 value, offset; + + padctl->usb3_ports[port].context_saved = true; + + offset = (lane == PIN_SATA_0) ? XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6 : + XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(lane - PIN_PCIE_0); + + value = padctl_readl(padctl, offset); + value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT); + value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT; + padctl_writel(padctl, value, offset); + + value = padctl_readl(padctl, offset) >> + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT; + padctl->usb3_ports[port].tap1_val = value & + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK; + + value = padctl_readl(padctl, offset); + value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT); + value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT; + padctl_writel(padctl, value, offset); + + value = padctl_readl(padctl, offset) >> + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT; + padctl->usb3_ports[port].amp_val = value & + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK; + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(port)); + value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) | + (XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT)); + value |= (padctl->usb3_ports[port].tap1_val << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) | + (padctl->usb3_ports[port].amp_val << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT); + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(port)); + + value = padctl_readl(padctl, offset); + value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT); + value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT; + padctl_writel(padctl, value, offset); + + value = padctl_readl(padctl, offset); + value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT); + value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT; + padctl_writel(padctl, value, offset); + + value = padctl_readl(padctl, offset) >> + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT; + padctl->usb3_ports[port].ctle_g_val = value & + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK; + + value = padctl_readl(padctl, offset); + value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT); + value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z << + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT; + padctl_writel(padctl, value, offset); + + value = padctl_readl(padctl, offset) >> + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT; + padctl->usb3_ports[port].ctle_z_val = value & + XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK; + + value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(port)); + value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) | + (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT)); + value |= (padctl->usb3_ports[port].ctle_g_val << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) | + (padctl->usb3_ports[port].ctle_z_val << + XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT); + padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(port)); +} + +static const struct phy_ops usb3_phy_ops = { + .init = tegra_xusb_phy_init, + .exit = tegra_xusb_phy_exit, + .power_on = usb3_phy_power_on, + .power_off = usb3_phy_power_off, + .owner = THIS_MODULE, +}; + +static int utmi_phy_to_port(struct phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy); + int i; + + for (i = 0; i < TEGRA_XUSB_PADCTL_UTMI_PORTS; i++) { + if (phy == padctl->phys[TEGRA_XUSB_PADCTL_UTMI_P0 + i]) + break; + } + BUG_ON(i == TEGRA_XUSB_PADCTL_UTMI_PORTS); + + return i; +} + +static int utmi_phy_power_on(struct phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy); + int port = utmi_phy_to_port(phy); + int ret; + u32 value; + + 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 |= (padctl->calib.hs_squelch_level << + XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) | + (padctl->soc->hs_discon_level << + XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_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_PORT_CAP_MASK << + XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(port)); + value |= XUSB_PADCTL_USB2_PORT_CAP_HOST << + XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(port); + padctl_writel(padctl, value, XUSB_PADCTL_USB2_PORT_CAP); + + value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(port)); + 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_HS_SLEW_MASK << + XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT) | + (XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK << + XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT) | + XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD | + XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 | + XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI); + value |= padctl->calib.hs_curr_level[port] << + XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT; + value |= padctl->soc->hs_slew << + XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT; + value |= padctl->soc->ls_rslew[port] << + XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT; + padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL0(port)); + + value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(port)); + 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_HS_IREF_CAP_MASK << + XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT) | + XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR | + XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP | + XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP); + value |= (padctl->calib.hs_term_range_adj << + XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) | + (padctl->calib.hs_iref_cap << + XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT); + padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(port)); + + ret = regulator_enable(padctl->vbus[port]); + if (ret) + return ret; + + mutex_lock(&padctl->lock); + + if (padctl->utmi_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: + mutex_unlock(&padctl->lock); + return 0; +} + +static int utmi_phy_power_off(struct phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy); + int port = utmi_phy_to_port(phy); + u32 value; + + regulator_disable(padctl->vbus[port]); + + mutex_lock(&padctl->lock); + + if (WARN_ON(padctl->utmi_enable == 0)) + goto out; + + if (--padctl->utmi_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: + mutex_unlock(&padctl->lock); + return 0; +} + +static const struct phy_ops utmi_phy_ops = { + .init = tegra_xusb_phy_init, + .exit = tegra_xusb_phy_exit, + .power_on = utmi_phy_power_on, + .power_off = utmi_phy_power_off, + .owner = THIS_MODULE, +}; + +static int hsic_phy_to_port(struct phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy); + int i; + + for (i = 0; i < TEGRA_XUSB_PADCTL_HSIC_PORTS; i++) { + if (phy == padctl->phys[TEGRA_XUSB_PADCTL_HSIC_P0 + i]) + break; + } + BUG_ON(i == TEGRA_XUSB_PADCTL_HSIC_PORTS); + + return i; +} + +static int hsic_phy_power_on(struct phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy); + int port = hsic_phy_to_port(phy); + int ret; + u32 value; + + ret = regulator_enable(padctl->vddio_hsic); + if (ret) + return ret; + + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(port)); + value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE | + XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA | + XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX | + XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI | + XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX | + XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX); + value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA | + XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE; + padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(port)); + + return 0; +} + +static int hsic_phy_power_off(struct phy *phy) +{ + struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy); + int port = hsic_phy_to_port(phy); + u32 value; + + regulator_disable(padctl->vddio_hsic); + + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(port)); + value |= XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX | + XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI | + XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX | + XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX; + padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(port)); + + return 0; +} + +static void hsic_phy_set_idle(struct tegra_xusb_padctl *padctl, int port, + bool set) +{ + u32 value; + + value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(port)); + if (set) + value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA | + XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE; + else + value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA | + XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE); + padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(port)); +} + +static const struct phy_ops hsic_phy_ops = { + .init = tegra_xusb_phy_init, + .exit = tegra_xusb_phy_exit, + .power_on = hsic_phy_power_on, + .power_off = hsic_phy_power_off, + .owner = THIS_MODULE, +}; + +static int tegra_xusb_phy_mbox_notifier(struct notifier_block *nb, + unsigned long event, void *p) +{ + struct tegra_xusb_padctl *padctl = container_of(nb, + struct tegra_xusb_padctl, + mbox_nb); + struct tegra_xusb_mbox_msg *msg = (struct tegra_xusb_mbox_msg *)p; + u32 ports; + int i; + + switch (event) { + case MBOX_CMD_SAVE_DFE_CTLE_CTX: + msg->data_out = msg->data_in; + if (msg->data_in > TEGRA_XUSB_PADCTL_USB3_PORTS) { + msg->cmd_out = MBOX_CMD_NAK; + } else { + usb3_phy_save_context(padctl, msg->data_in); + msg->cmd_out = MBOX_CMD_ACK; + } + return NOTIFY_STOP; + case MBOX_CMD_START_HSIC_IDLE: + case MBOX_CMD_STOP_HSIC_IDLE: + ports = msg->data_in >> (padctl->soc->hsic_port_offset + 1); + msg->data_out = msg->data_in; + for (i = 0; i < TEGRA_XUSB_PADCTL_HSIC_PORTS; i++) { + if (!(ports & BIT(i))) + continue; + if (event == MBOX_CMD_START_HSIC_IDLE) + hsic_phy_set_idle(padctl, i, true); + else + hsic_phy_set_idle(padctl, i, false); + } + msg->cmd_out = MBOX_CMD_ACK; + return NOTIFY_STOP; + default: + return NOTIFY_DONE; + } +} + static struct phy *tegra_xusb_padctl_xlate(struct device *dev, struct of_phandle_args *args) { @@ -610,19 +1598,6 @@ static struct phy *tegra_xusb_padctl_xlate(struct device *dev, return padctl->phys[index]; } -#define PIN_OTG_0 0 -#define PIN_OTG_1 1 -#define PIN_OTG_2 2 -#define PIN_ULPI_0 3 -#define PIN_HSIC_0 4 -#define PIN_HSIC_1 5 -#define PIN_PCIE_0 6 -#define PIN_PCIE_1 7 -#define PIN_PCIE_2 8 -#define PIN_PCIE_3 9 -#define PIN_PCIE_4 10 -#define PIN_SATA_0 11 - static const struct pinctrl_pin_desc tegra124_pins[] = { PINCTRL_PIN(PIN_OTG_0, "otg-0"), PINCTRL_PIN(PIN_OTG_1, "otg-1"), @@ -780,6 +1755,15 @@ static const struct tegra_xusb_padctl_soc tegra124_soc = { .functions = tegra124_functions, .num_lanes = ARRAY_SIZE(tegra124_lanes), .lanes = tegra124_lanes, + .rx_wander = 0xf, + .rx_eq = 0xf070, + .cdr_cntl = 0x24, + .dfe_cntl = 0x002008ee, + .hs_slew = 0xe, + .ls_rslew = {0x3, 0x0, 0x0}, + .hs_discon_level = 0x5, + .spare_in = 0x1, + .hsic_port_offset = 6, }; static const struct of_device_id tegra_xusb_padctl_of_match[] = { @@ -788,13 +1772,40 @@ static const struct of_device_id tegra_xusb_padctl_of_match[] = { }; MODULE_DEVICE_TABLE(of, tegra_xusb_padctl_of_match); +static int tegra_xusb_read_fuse_calibration(struct tegra_xusb_padctl *padctl) +{ + int i, ret; + u32 value; + + ret = tegra_fuse_readl(TEGRA_FUSE_SKU_CALIB_0, &value); + if (ret < 0) + return ret; + + for (i = 0; i < TEGRA_XUSB_PADCTL_UTMI_PORTS; i++) { + padctl->calib.hs_curr_level[i] = + (value >> FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(i)) & + FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK; + } + padctl->calib.hs_iref_cap = + (value >> FUSE_SKU_CALIB_HS_IREF_CAP_SHIFT) & + FUSE_SKU_CALIB_HS_IREF_CAP_MASK; + padctl->calib.hs_term_range_adj = + (value >> FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT) & + FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK; + padctl->calib.hs_squelch_level = + (value >> FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_SHIFT) & + FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_MASK; + + return 0; +} + static int tegra_xusb_padctl_probe(struct platform_device *pdev) { struct tegra_xusb_padctl *padctl; const struct of_device_id *match; struct resource *res; struct phy *phy; - int err; + int err, i; padctl = devm_kzalloc(&pdev->dev, sizeof(*padctl), GFP_KERNEL); if (!padctl) @@ -812,6 +1823,10 @@ static int tegra_xusb_padctl_probe(struct platform_device *pdev) if (IS_ERR(padctl->regs)) return PTR_ERR(padctl->regs); + err = tegra_xusb_read_fuse_calibration(padctl); + if (err < 0) + return err; + padctl->rst = devm_reset_control_get(&pdev->dev, NULL); if (IS_ERR(padctl->rst)) return PTR_ERR(padctl->rst); @@ -852,6 +1867,54 @@ static int tegra_xusb_padctl_probe(struct platform_device *pdev) padctl->phys[TEGRA_XUSB_PADCTL_SATA] = phy; phy_set_drvdata(phy, padctl); + for (i = 0; i < TEGRA_XUSB_PADCTL_USB3_PORTS; i++) { + phy = devm_phy_create(&pdev->dev, &usb3_phy_ops, NULL); + if (IS_ERR(phy)) { + err = PTR_ERR(phy); + goto unregister; + } + + padctl->phys[TEGRA_XUSB_PADCTL_USB3_P0 + i] = phy; + phy_set_drvdata(phy, padctl); + } + + for (i = 0; i < TEGRA_XUSB_PADCTL_UTMI_PORTS; i++) { + char reg_name[sizeof("vbus-otg-N")]; + + sprintf(reg_name, "vbus-otg-%d", i); + padctl->vbus[i] = devm_regulator_get(&pdev->dev, reg_name); + if (IS_ERR(padctl->vbus[i])) { + err = PTR_ERR(padctl->vbus[i]); + goto unregister; + } + + phy = devm_phy_create(&pdev->dev, &utmi_phy_ops, NULL); + if (IS_ERR(phy)) { + err = PTR_ERR(phy); + goto unregister; + } + + padctl->phys[TEGRA_XUSB_PADCTL_UTMI_P0 + i] = phy; + phy_set_drvdata(phy, padctl); + } + + padctl->vddio_hsic = devm_regulator_get(&pdev->dev, "vddio-hsic"); + if (IS_ERR(padctl->vddio_hsic)) { + err = PTR_ERR(padctl->vddio_hsic); + goto unregister; + } + + for (i = 0; i < TEGRA_XUSB_PADCTL_HSIC_PORTS; i++) { + phy = devm_phy_create(&pdev->dev, &hsic_phy_ops, NULL); + if (IS_ERR(phy)) { + err = PTR_ERR(phy); + goto unregister; + } + + padctl->phys[TEGRA_XUSB_PADCTL_HSIC_P0 + i] = phy; + phy_set_drvdata(phy, padctl); + } + padctl->provider = devm_of_phy_provider_register(&pdev->dev, tegra_xusb_padctl_xlate); if (err < 0) { @@ -859,6 +1922,13 @@ static int tegra_xusb_padctl_probe(struct platform_device *pdev) goto unregister; } + padctl->mbox = tegra_xusb_mbox_lookup_by_phandle(pdev->dev.of_node, + "nvidia,xusb-mbox"); + if (IS_ERR(padctl->mbox)) + return PTR_ERR(padctl->mbox); + padctl->mbox_nb.notifier_call = tegra_xusb_phy_mbox_notifier; + tegra_xusb_mbox_register_notifier(padctl->mbox, &padctl->mbox_nb); + return 0; unregister: @@ -873,6 +1943,8 @@ static int tegra_xusb_padctl_remove(struct platform_device *pdev) struct tegra_xusb_padctl *padctl = platform_get_drvdata(pdev); int err; + tegra_xusb_mbox_unregister_notifier(padctl->mbox, &padctl->mbox_nb); + pinctrl_unregister(padctl->pinctrl); err = reset_control_assert(padctl->rst); -- 2.0.0.526.g5318336 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/