X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fehci-mx5.c;h=2b36cebdb3a619518b33f5458fe99215b6fe4f61;hb=17b68b5a583207c9842d45ca7737dd79091e2765;hp=58cdcbedf273c013e509faf8deae3f5d5beda175;hpb=6b62b9a31de421bc3646c4dc1063c6d037de62b3;p=oweals%2Fu-boot.git diff --git a/drivers/usb/host/ehci-mx5.c b/drivers/usb/host/ehci-mx5.c index 58cdcbedf2..2b36cebdb3 100644 --- a/drivers/usb/host/ehci-mx5.c +++ b/drivers/usb/host/ehci-mx5.c @@ -2,133 +2,80 @@ * Copyright (c) 2009 Daniel Mack * Copyright (C) 2010 Freescale Semiconductor, Inc. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. + * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include -#include +#include #include #include #include -#include -#include #include "ehci.h" -#include "ehci-core.h" #define MX5_USBOTHER_REGS_OFFSET 0x800 -#define MXC_OTG_OFFSET 0 -#define MXC_H1_OFFSET 0x200 -#define MXC_H2_OFFSET 0x400 +#define MXC_OTG_OFFSET 0 +#define MXC_H1_OFFSET 0x200 +#define MXC_H2_OFFSET 0x400 +#define MXC_H3_OFFSET 0x600 #define MXC_USBCTRL_OFFSET 0 #define MXC_USB_PHY_CTR_FUNC_OFFSET 0x8 #define MXC_USB_PHY_CTR_FUNC2_OFFSET 0xc #define MXC_USB_CTRL_1_OFFSET 0x10 #define MXC_USBH2CTRL_OFFSET 0x14 +#define MXC_USBH3CTRL_OFFSET 0x18 /* USB_CTRL */ -#define MXC_OTG_UCTRL_OWIE_BIT (1 << 27) /* OTG wakeup intr enable */ -#define MXC_OTG_UCTRL_OPM_BIT (1 << 24) /* OTG power mask */ -#define MXC_H1_UCTRL_H1UIE_BIT (1 << 12) /* Host1 ULPI interrupt enable */ -#define MXC_H1_UCTRL_H1WIE_BIT (1 << 11) /* HOST1 wakeup intr enable */ -#define MXC_H1_UCTRL_H1PM_BIT (1 << 8) /* HOST1 power mask */ +/* OTG wakeup intr enable */ +#define MXC_OTG_UCTRL_OWIE_BIT (1 << 27) +/* OTG power mask */ +#define MXC_OTG_UCTRL_OPM_BIT (1 << 24) +/* OTG power pin polarity */ +#define MXC_OTG_UCTRL_O_PWR_POL_BIT (1 << 24) +/* Host1 ULPI interrupt enable */ +#define MXC_H1_UCTRL_H1UIE_BIT (1 << 12) +/* HOST1 wakeup intr enable */ +#define MXC_H1_UCTRL_H1WIE_BIT (1 << 11) +/* HOST1 power mask */ +#define MXC_H1_UCTRL_H1PM_BIT (1 << 8) +/* HOST1 power pin polarity */ +#define MXC_H1_UCTRL_H1_PWR_POL_BIT (1 << 8) /* USB_PHY_CTRL_FUNC */ -#define MXC_OTG_PHYCTRL_OC_DIS_BIT (1 << 8) /* OTG Disable Overcurrent Event */ -#define MXC_H1_OC_DIS_BIT (1 << 5) /* UH1 Disable Overcurrent Event */ +/* OTG Polarity of Overcurrent */ +#define MXC_OTG_PHYCTRL_OC_POL_BIT (1 << 9) +/* OTG Disable Overcurrent Event */ +#define MXC_OTG_PHYCTRL_OC_DIS_BIT (1 << 8) +/* UH1 Polarity of Overcurrent */ +#define MXC_H1_OC_POL_BIT (1 << 6) +/* UH1 Disable Overcurrent Event */ +#define MXC_H1_OC_DIS_BIT (1 << 5) +/* OTG Power Pin Polarity */ +#define MXC_OTG_PHYCTRL_PWR_POL_BIT (1 << 3) /* USBH2CTRL */ -#define MXC_H2_UCTRL_H2UIE_BIT (1 << 8) -#define MXC_H2_UCTRL_H2WIE_BIT (1 << 7) -#define MXC_H2_UCTRL_H2PM_BIT (1 << 4) +#define MXC_H2_UCTRL_H2_OC_POL_BIT (1 << 31) +#define MXC_H2_UCTRL_H2_OC_DIS_BIT (1 << 30) +#define MXC_H2_UCTRL_H2UIE_BIT (1 << 8) +#define MXC_H2_UCTRL_H2WIE_BIT (1 << 7) +#define MXC_H2_UCTRL_H2PM_BIT (1 << 4) +#define MXC_H2_UCTRL_H2_PWR_POL_BIT (1 << 4) + +/* USBH3CTRL */ +#define MXC_H3_UCTRL_H3_OC_POL_BIT (1 << 31) +#define MXC_H3_UCTRL_H3_OC_DIS_BIT (1 << 30) +#define MXC_H3_UCTRL_H3UIE_BIT (1 << 8) +#define MXC_H3_UCTRL_H3WIE_BIT (1 << 7) +#define MXC_H3_UCTRL_H3_PWR_POL_BIT (1 << 4) /* USB_CTRL_1 */ -#define MXC_USB_CTRL_UH1_EXT_CLK_EN (1 << 25) - -/* USB pin configuration */ -#define USB_PAD_CONFIG (PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST | \ - PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | \ - PAD_CTL_HYS_ENABLE | PAD_CTL_PUE_PULL) - -#ifdef CONFIG_MX51 -/* - * Configure the MX51 USB H1 IOMUX - */ -void setup_iomux_usb_h1(void) -{ - mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_STP, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_CLK, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_CLK, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DIR, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DIR, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_NXT, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_NXT, USB_PAD_CONFIG); - - mxc_request_iomux(MX51_PIN_USBH1_DATA0, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA0, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA1, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA1, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA2, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA2, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA3, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA3, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA4, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA4, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA5, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA5, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA6, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA6, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA7, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA7, USB_PAD_CONFIG); -} - -/* - * Configure the MX51 USB H2 IOMUX - */ -void setup_iomux_usb_h2(void) -{ - mxc_request_iomux(MX51_PIN_EIM_A24, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_A24, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_A25, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_A25, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_A26, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_A27, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_A27, USB_PAD_CONFIG); - - mxc_request_iomux(MX51_PIN_EIM_D16, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D16, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D17, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D17, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D18, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D18, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D19, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D19, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D20, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D20, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D21, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D21, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D22, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D22, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D23, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D23, USB_PAD_CONFIG); -} -#endif +#define MXC_USB_CTRL_UH1_EXT_CLK_EN (1 << 25) int mxc_set_usbcontrol(int port, unsigned int flags) { @@ -144,24 +91,42 @@ int mxc_set_usbcontrol(int port, unsigned int flags) if (flags & MXC_EHCI_INTERNAL_PHY) { v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET); + if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW) + v |= MXC_OTG_PHYCTRL_OC_POL_BIT; + else + v &= ~MXC_OTG_PHYCTRL_OC_POL_BIT; if (flags & MXC_EHCI_POWER_PINS_ENABLED) + /* OC/USBPWR is used */ + v &= ~MXC_OTG_PHYCTRL_OC_DIS_BIT; + else /* OC/USBPWR is not used */ v |= MXC_OTG_PHYCTRL_OC_DIS_BIT; +#ifdef CONFIG_MX51 + if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH) + v |= MXC_OTG_PHYCTRL_PWR_POL_BIT; else - /* OC/USBPWR is used */ - v &= ~MXC_OTG_PHYCTRL_OC_DIS_BIT; + v &= ~MXC_OTG_PHYCTRL_PWR_POL_BIT; +#endif __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET); v = __raw_readl(usbother_base + MXC_USBCTRL_OFFSET); +#ifdef CONFIG_MX51 if (flags & MXC_EHCI_POWER_PINS_ENABLED) + v &= ~MXC_OTG_UCTRL_OPM_BIT; + else v |= MXC_OTG_UCTRL_OPM_BIT; +#endif +#ifdef CONFIG_MX53 + if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH) + v |= MXC_OTG_UCTRL_O_PWR_POL_BIT; else - v &= ~MXC_OTG_UCTRL_OPM_BIT; + v &= ~MXC_OTG_UCTRL_O_PWR_POL_BIT; +#endif __raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET); } break; - case 1: /* Host 1 Host ULPI */ + case 1: /* Host 1 ULPI */ #ifdef CONFIG_MX51 /* The clock for the USBH1 ULPI port will come externally from the PHY. */ @@ -171,13 +136,25 @@ int mxc_set_usbcontrol(int port, unsigned int flags) #endif v = __raw_readl(usbother_base + MXC_USBCTRL_OFFSET); +#ifdef CONFIG_MX51 if (flags & MXC_EHCI_POWER_PINS_ENABLED) - v &= ~MXC_H1_UCTRL_H1PM_BIT; /* HOST1 power mask used */ + v &= ~MXC_H1_UCTRL_H1PM_BIT; /* H1 power mask unused */ else - v |= MXC_H1_UCTRL_H1PM_BIT; /* HOST1 power mask used */ + v |= MXC_H1_UCTRL_H1PM_BIT; /* H1 power mask used */ +#endif +#ifdef CONFIG_MX53 + if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH) + v |= MXC_H1_UCTRL_H1_PWR_POL_BIT; + else + v &= ~MXC_H1_UCTRL_H1_PWR_POL_BIT; +#endif __raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET); v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET); + if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW) + v |= MXC_H1_OC_POL_BIT; + else + v &= ~MXC_H1_OC_POL_BIT; if (flags & MXC_EHCI_POWER_PINS_ENABLED) v &= ~MXC_H1_OC_DIS_BIT; /* OC is used */ else @@ -187,42 +164,82 @@ int mxc_set_usbcontrol(int port, unsigned int flags) break; case 2: /* Host 2 ULPI */ v = __raw_readl(usbother_base + MXC_USBH2CTRL_OFFSET); +#ifdef CONFIG_MX51 if (flags & MXC_EHCI_POWER_PINS_ENABLED) - v &= ~MXC_H2_UCTRL_H2PM_BIT; /* HOST2 power mask used */ + v &= ~MXC_H2_UCTRL_H2PM_BIT; /* H2 power mask unused */ else - v |= MXC_H2_UCTRL_H2PM_BIT; /* HOST2 power mask used */ - + v |= MXC_H2_UCTRL_H2PM_BIT; /* H2 power mask used */ +#endif +#ifdef CONFIG_MX53 + if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW) + v |= MXC_H2_UCTRL_H2_OC_POL_BIT; + else + v &= ~MXC_H2_UCTRL_H2_OC_POL_BIT; + if (flags & MXC_EHCI_POWER_PINS_ENABLED) + v &= ~MXC_H2_UCTRL_H2_OC_DIS_BIT; /* OC is used */ + else + v |= MXC_H2_UCTRL_H2_OC_DIS_BIT; /* OC is not used */ + if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH) + v |= MXC_H2_UCTRL_H2_PWR_POL_BIT; + else + v &= ~MXC_H2_UCTRL_H2_PWR_POL_BIT; +#endif __raw_writel(v, usbother_base + MXC_USBH2CTRL_OFFSET); break; +#ifdef CONFIG_MX53 + case 3: /* Host 3 ULPI */ + v = __raw_readl(usbother_base + MXC_USBH3CTRL_OFFSET); + if (flags & MXC_EHCI_OC_PIN_ACTIVE_LOW) + v |= MXC_H3_UCTRL_H3_OC_POL_BIT; + else + v &= ~MXC_H3_UCTRL_H3_OC_POL_BIT; + if (flags & MXC_EHCI_POWER_PINS_ENABLED) + v &= ~MXC_H3_UCTRL_H3_OC_DIS_BIT; /* OC is used */ + else + v |= MXC_H3_UCTRL_H3_OC_DIS_BIT; /* OC is not used */ + if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH) + v |= MXC_H3_UCTRL_H3_PWR_POL_BIT; + else + v &= ~MXC_H3_UCTRL_H3_PWR_POL_BIT; + __raw_writel(v, usbother_base + MXC_USBH3CTRL_OFFSET); + break; +#endif } return ret; } -void __board_ehci_hcd_postinit(struct usb_ehci *ehci, int port) +int __weak board_ehci_hcd_init(int port) { + return 0; } -void board_ehci_hcd_postinit(struct usb_ehci *ehci, int port) - __attribute((weak, alias("__board_ehci_hcd_postinit"))); +void __weak board_ehci_hcd_postinit(struct usb_ehci *ehci, int port) +{ +} -int ehci_hcd_init(void) +__weak void mx5_ehci_powerup_fixup(struct ehci_ctrl *ctrl, uint32_t *status_reg, + uint32_t *reg) { - struct usb_ehci *ehci; -#ifdef CONFIG_MX53 - struct clkctl *sc_regs = (struct clkctl *)CCM_BASE_ADDR; - u32 reg; + mdelay(50); +} - reg = __raw_readl(&sc_regs->cscmr1) & ~(1 << 26); - /* derive USB PHY clock multiplexer from PLL3 */ - reg |= 1 << 26; - __raw_writel(reg, &sc_regs->cscmr1); -#endif +static const struct ehci_ops mx5_ehci_ops = { + .powerup_fixup = mx5_ehci_powerup_fixup, +}; + +int ehci_hcd_init(int index, enum usb_init_type init, + struct ehci_hccr **hccr, struct ehci_hcor **hcor) +{ + struct usb_ehci *ehci; + /* The only user for this is efikamx-usb */ + ehci_set_controller_priv(index, NULL, &mx5_ehci_ops); set_usboh3_clk(); - enable_usboh3_clk(1); - set_usb_phy2_clk(); - enable_usb_phy2_clk(1); + enable_usboh3_clk(true); + set_usb_phy_clk(); + enable_usb_phy1_clk(true); + enable_usb_phy2_clk(true); mdelay(1); /* Do board specific initialization */ @@ -230,9 +247,9 @@ int ehci_hcd_init(void) ehci = (struct usb_ehci *)(OTG_BASE_ADDR + (0x200 * CONFIG_MXC_USB_PORT)); - hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength); - hcor = (struct ehci_hcor *)((uint32_t)hccr + - HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + *hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength); + *hcor = (struct ehci_hcor *)((uint32_t)*hccr + + HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase))); setbits_le32(&ehci->usbmode, CM_HOST); __raw_writel(CONFIG_MXC_USB_PORTSC, &ehci->portsc); @@ -247,7 +264,7 @@ int ehci_hcd_init(void) return 0; } -int ehci_hcd_stop(void) +int ehci_hcd_stop(int index) { return 0; }