diff options
Diffstat (limited to 'drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c')
| -rw-r--r-- | drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c | 215 |
1 files changed, 166 insertions, 49 deletions
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c index e63457e145c7..8a5ed50f2da0 100644 --- a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c +++ b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c @@ -18,14 +18,14 @@ #define PIARBCTL_CAM 0x00 #define PIARBCTL_SPLITTER 0x04 #define PIARBCTL_MISC 0x08 -#define PIARBCTL_MISC_SECURE_MASK 0x80000000 -#define PIARBCTL_MISC_USB_SELECT_MASK 0x40000000 -#define PIARBCTL_MISC_USB_4G_SDRAM_MASK 0x20000000 -#define PIARBCTL_MISC_USB_PRIORITY_MASK 0x000f0000 -#define PIARBCTL_MISC_USB_MEM_PAGE_MASK 0x0000f000 -#define PIARBCTL_MISC_CAM1_MEM_PAGE_MASK 0x00000f00 -#define PIARBCTL_MISC_CAM0_MEM_PAGE_MASK 0x000000f0 -#define PIARBCTL_MISC_SATA_PRIORITY_MASK 0x0000000f +#define PIARBCTL_MISC_SATA_PRIORITY_MASK GENMASK(3, 0) +#define PIARBCTL_MISC_CAM0_MEM_PAGE_MASK GENMASK(7, 4) +#define PIARBCTL_MISC_CAM1_MEM_PAGE_MASK GENMASK(11, 8) +#define PIARBCTL_MISC_USB_MEM_PAGE_MASK GENMASK(15, 12) +#define PIARBCTL_MISC_USB_PRIORITY_MASK GENMASK(19, 16) +#define PIARBCTL_MISC_USB_4G_SDRAM_MASK BIT(29) +#define PIARBCTL_MISC_USB_SELECT_MASK BIT(30) +#define PIARBCTL_MISC_SECURE_MASK BIT(31) #define PIARBCTL_MISC_USB_ONLY_MASK \ (PIARBCTL_MISC_USB_SELECT_MASK | \ @@ -35,44 +35,58 @@ /* Register definitions for the USB CTRL block */ #define USB_CTRL_SETUP 0x00 -#define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK 0x02000000 -#define USB_CTRL_SETUP_SCB2_EN_MASK 0x00008000 -#define USB_CTRL_SETUP_tca_drv_sel_MASK 0x01000000 -#define USB_CTRL_SETUP_SCB1_EN_MASK 0x00004000 -#define USB_CTRL_SETUP_SOFT_SHUTDOWN_MASK 0x00000200 -#define USB_CTRL_SETUP_IPP_MASK 0x00000020 -#define USB_CTRL_SETUP_IOC_MASK 0x00000010 +#define USB_CTRL_SETUP_IOC_MASK BIT(4) +#define USB_CTRL_SETUP_IPP_MASK BIT(5) +#define USB_CTRL_SETUP_SOFT_SHUTDOWN_MASK BIT(9) +#define USB_CTRL_SETUP_SCB1_EN_MASK BIT(14) +#define USB_CTRL_SETUP_SCB2_EN_MASK BIT(15) +#define USB_CTRL_SETUP_tca_drv_sel_MASK BIT(24) +#define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK BIT(25) #define USB_CTRL_USB_PM 0x04 -#define USB_CTRL_USB_PM_USB_PWRDN_MASK 0x80000000 -#define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000 -#define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK 0x00800000 -#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK 0x00400000 +#define USB_CTRL_USB_PM_REF_S2_CLK_SWITCH_EN_MASK BIT(1) +#define USB_CTRL_USB_PM_UTMI_S2_CLK_SWITCH_EN_MASK BIT(2) +#define USB_CTRL_USB_PM_XHC_S2_CLK_SWITCH_EN_MASK BIT(3) +#define USB_CTRL_USB_PM_XHC_PME_EN_MASK BIT(4) +#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK BIT(22) +#define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK BIT(23) +#define USB_CTRL_USB_PM_SOFT_RESET_MASK BIT(30) +#define USB_CTRL_USB_PM_USB_PWRDN_MASK BIT(31) #define USB_CTRL_USB_PM_STATUS 0x08 #define USB_CTRL_USB_DEVICE_CTL1 0x10 -#define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003 +#define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK GENMASK(1, 0) #define USB_CTRL_TEST_PORT_CTL 0x30 -#define USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_MASK 0x000000ff +#define USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_MASK GENMASK(7, 0) #define USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_PME_GEN_MASK 0x0000002e #define USB_CTRL_TP_DIAG1 0x34 -#define USB_CTLR_TP_DIAG1_wake_MASK 0x00000002 +#define USB_CTLR_TP_DIAG1_wake_MASK BIT(1) #define USB_CTRL_CTLR_CSHCR 0x50 -#define USB_CTRL_CTLR_CSHCR_ctl_pme_en_MASK 0x00040000 +#define USB_CTRL_CTLR_CSHCR_ctl_pme_en_MASK BIT(18) +#define USB_CTRL_P0_U2PHY_CFG1 0x68 +#define USB_CTRL_P0_U2PHY_CFG1_COMMONONN_MASK BIT(10) +#define USB_CTRL_P0_U2PHY_CFG2 0x6c +#define USB_CTRL_P0_U2PHY_CFG2_TXVREFTUNE0_MASK GENMASK(20, 17) +#define USB_CTRL_P0_U2PHY_CFG2_TXVREFTUNE0_SHIFT 17 +#define USB_CTRL_P0_U2PHY_CFG2_TXRESTUNE0_MASK GENMASK(24, 23) +#define USB_CTRL_P0_U2PHY_CFG2_TXRESTUNE0_SHIFT 23 +#define USB_CTRL_P0_U2PHY_CFG2_TXPREEMPAMPTUNE0_MASK GENMASK(26, 25) +#define USB_CTRL_P0_U2PHY_CFG2_TXPREEMPAMPTUNE0_SHIFT 25 /* Register definitions for the USB_PHY block in 7211b0 */ #define USB_PHY_PLL_CTL 0x00 -#define USB_PHY_PLL_CTL_PLL_RESETB_MASK 0x40000000 +#define USB_PHY_PLL_CTL_PLL_SUSPEND_MASK BIT(27) +#define USB_PHY_PLL_CTL_PLL_RESETB_MASK BIT(30) #define USB_PHY_PLL_LDO_CTL 0x08 -#define USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK 0x00000004 -#define USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK 0x00000002 -#define USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK 0x00000001 +#define USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK BIT(0) +#define USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK BIT(1) +#define USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK BIT(2) #define USB_PHY_UTMI_CTL_1 0x04 -#define USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK 0x00000800 -#define USB_PHY_UTMI_CTL_1_PHY_MODE_MASK 0x0000000c +#define USB_PHY_UTMI_CTL_1_PHY_MODE_MASK GENMASK(3, 2) #define USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT 2 +#define USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK BIT(11) #define USB_PHY_IDDQ 0x1c -#define USB_PHY_IDDQ_phy_iddq_MASK 0x00000001 +#define USB_PHY_IDDQ_phy_iddq_MASK BIT(0) #define USB_PHY_STATUS 0x20 -#define USB_PHY_STATUS_pll_lock_MASK 0x00000001 +#define USB_PHY_STATUS_pll_lock_MASK BIT(0) /* Register definitions for the MDIO registers in the DWC2 block of * the 7211b0. @@ -84,9 +98,11 @@ /* Register definitions for the BDC EC block in 7211b0 */ #define BDC_EC_AXIRDA 0x0c -#define BDC_EC_AXIRDA_RTS_MASK 0xf0000000 +#define BDC_EC_AXIRDA_RTS_MASK GENMASK(31, 28) #define BDC_EC_AXIRDA_RTS_SHIFT 28 +#define USB_XHCI_GBL_GUSB2PHYCFG 0x100 +#define USB_XHCI_GBL_GUSB2PHYCFG_U2_FREECLK_EXISTS_MASK BIT(30) static void usb_mdio_write_7211b0(struct brcm_usb_init_params *params, uint8_t addr, uint16_t data) @@ -137,13 +153,19 @@ static void xhci_soft_reset(struct brcm_usb_init_params *params, int on_off) { void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; + void __iomem *xhci_gbl = params->regs[BRCM_REGS_XHCI_GBL]; /* Assert reset */ - if (on_off) + if (on_off) { USB_CTRL_UNSET(ctrl, USB_PM, XHC_SOFT_RESETB); /* De-assert reset */ - else + } else { USB_CTRL_SET(ctrl, USB_PM, XHC_SOFT_RESETB); + /* Required for COMMONONN to be set */ + if (params->supported_port_modes != USB_CTLR_MODE_DRD) + USB_XHCI_GBL_UNSET(xhci_gbl, GUSB2PHYCFG, + U2_FREECLK_EXISTS); + } } static void usb_init_ipp(struct brcm_usb_init_params *params) @@ -190,17 +212,13 @@ static void usb_init_common(struct brcm_usb_init_params *params) pr_debug("%s\n", __func__); - USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN); - /* 1 millisecond - for USB clocks to settle down */ - usleep_range(1000, 2000); - if (USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE)) { reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE); - reg |= params->mode; + reg |= params->port_mode; brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); } - switch (params->mode) { + switch (params->supported_port_modes) { case USB_CTLR_MODE_HOST: USB_CTRL_UNSET(ctrl, USB_PM, BDC_SOFT_RESETB); break; @@ -222,6 +240,17 @@ static void usb_wake_enable_7211b0(struct brcm_usb_init_params *params, USB_CTRL_UNSET(ctrl, CTLR_CSHCR, ctl_pme_en); } +static void usb_wake_enable_7216(struct brcm_usb_init_params *params, + bool enable) +{ + void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; + + if (enable) + USB_CTRL_SET(ctrl, USB_PM, XHC_PME_EN); + else + USB_CTRL_UNSET(ctrl, USB_PM, XHC_PME_EN); +} + static void usb_init_common_7211b0(struct brcm_usb_init_params *params) { void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; @@ -250,6 +279,11 @@ static void usb_init_common_7211b0(struct brcm_usb_init_params *params) brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1); } + /* Disable PLL auto suspend */ + reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL); + reg |= USB_PHY_PLL_CTL_PLL_SUSPEND_MASK; + brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL); + /* Init the PHY */ reg = USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK | USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK | @@ -267,7 +301,7 @@ static void usb_init_common_7211b0(struct brcm_usb_init_params *params) /* Set the PHY_MODE */ reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1); reg &= ~USB_PHY_UTMI_CTL_1_PHY_MODE_MASK; - reg |= params->mode << USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT; + reg |= params->supported_port_modes << USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT; brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1); usb_init_common(params); @@ -277,7 +311,7 @@ static void usb_init_common_7211b0(struct brcm_usb_init_params *params) * the default "Read Transaction Size" of 6 (1024 bytes). * Set it to 4 (256 bytes). */ - if ((params->mode != USB_CTLR_MODE_HOST) && bdc_ec) { + if ((params->supported_port_modes != USB_CTLR_MODE_HOST) && bdc_ec) { reg = brcm_usb_readl(bdc_ec + BDC_EC_AXIRDA); reg &= ~BDC_EC_AXIRDA_RTS_MASK; reg |= (0x4 << BDC_EC_AXIRDA_RTS_SHIFT); @@ -295,6 +329,33 @@ static void usb_init_common_7211b0(struct brcm_usb_init_params *params) usb2_eye_fix_7211b0(params); } +static void usb_init_common_7216(struct brcm_usb_init_params *params) +{ + void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; + + USB_CTRL_UNSET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN); + + /* + * The PHY might be in a bad state if it is already powered + * up. Toggle the power just in case. + */ + USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN); + USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN); + + /* 1 millisecond - for USB clocks to settle down */ + usleep_range(1000, 2000); + + /* + * Disable PHY when port is suspended + * Does not work in DRD mode + */ + if (params->supported_port_modes != USB_CTLR_MODE_DRD) + USB_CTRL_SET(ctrl, P0_U2PHY_CFG1, COMMONONN); + + usb_wake_enable_7216(params, false); + usb_init_common(params); +} + static void usb_init_xhci(struct brcm_usb_init_params *params) { pr_debug("%s\n", __func__); @@ -302,14 +363,55 @@ static void usb_init_xhci(struct brcm_usb_init_params *params) xhci_soft_reset(params, 0); } -static void usb_uninit_common(struct brcm_usb_init_params *params) +static void usb_uninit_common_7216(struct brcm_usb_init_params *params) { void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; pr_debug("%s\n", __func__); - USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN); + if (params->wake_enabled) { + /* Switch to using slower clock during suspend to save power */ + USB_CTRL_SET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN); + usb_wake_enable_7216(params, true); + } else { + USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN); + } +} + +static void usb_init_common_74110(struct brcm_usb_init_params *params) +{ + void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; + u32 reg; + + reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_PM)); + reg &= ~(USB_CTRL_MASK(USB_PM, REF_S2_CLK_SWITCH_EN) | + USB_CTRL_MASK(USB_PM, UTMI_S2_CLK_SWITCH_EN)); + brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_PM)); + + usb_init_common_7216(params); + + reg = brcm_usb_readl(USB_CTRL_REG(ctrl, P0_U2PHY_CFG2)); + reg &= ~(USB_CTRL_P0_U2PHY_CFG2_TXVREFTUNE0_MASK | + USB_CTRL_P0_U2PHY_CFG2_TXRESTUNE0_MASK | + USB_CTRL_P0_U2PHY_CFG2_TXPREEMPAMPTUNE0_MASK); + reg |= (0x6 << USB_CTRL_P0_U2PHY_CFG2_TXVREFTUNE0_SHIFT) | + (0x3 << USB_CTRL_P0_U2PHY_CFG2_TXRESTUNE0_SHIFT) | + (0x2 << USB_CTRL_P0_U2PHY_CFG2_TXPREEMPAMPTUNE0_SHIFT); + brcm_usb_writel(reg, USB_CTRL_REG(ctrl, P0_U2PHY_CFG2)); +} + +static void usb_uninit_common_74110(struct brcm_usb_init_params *params) +{ + void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; + u32 reg; + if (params->wake_enabled) { + reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_PM)); + reg |= (USB_CTRL_MASK(USB_PM, REF_S2_CLK_SWITCH_EN) | + USB_CTRL_MASK(USB_PM, UTMI_S2_CLK_SWITCH_EN)); + brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_PM)); + } + usb_uninit_common_7216(params); } static void usb_uninit_common_7211b0(struct brcm_usb_init_params *params) @@ -356,7 +458,7 @@ static int usb_get_dual_select(struct brcm_usb_init_params *params) return reg; } -static void usb_set_dual_select(struct brcm_usb_init_params *params, int mode) +static void usb_set_dual_select(struct brcm_usb_init_params *params) { void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; u32 reg; @@ -365,15 +467,25 @@ static void usb_set_dual_select(struct brcm_usb_init_params *params, int mode) reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE); - reg |= mode; + reg |= params->port_mode; brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); } +static const struct brcm_usb_init_ops bcm74110_ops = { + .init_ipp = usb_init_ipp, + .init_common = usb_init_common_74110, + .init_xhci = usb_init_xhci, + .uninit_common = usb_uninit_common_74110, + .uninit_xhci = usb_uninit_xhci, + .get_dual_select = usb_get_dual_select, + .set_dual_select = usb_set_dual_select, +}; + static const struct brcm_usb_init_ops bcm7216_ops = { .init_ipp = usb_init_ipp, - .init_common = usb_init_common, + .init_common = usb_init_common_7216, .init_xhci = usb_init_xhci, - .uninit_common = usb_uninit_common, + .uninit_common = usb_uninit_common_7216, .uninit_xhci = usb_uninit_xhci, .get_dual_select = usb_get_dual_select, .set_dual_select = usb_set_dual_select, @@ -389,6 +501,12 @@ static const struct brcm_usb_init_ops bcm7211b0_ops = { .set_dual_select = usb_set_dual_select, }; +void brcm_usb_dvr_init_74110(struct brcm_usb_init_params *params) +{ + params->family_name = "74110"; + params->ops = &bcm74110_ops; +} + void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params) { @@ -405,5 +523,4 @@ void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params) params->family_name = "7211"; params->ops = &bcm7211b0_ops; - params->suspend_with_clocks = true; } |