/** * drivers/usb/host/sunxi_hci.c * (C) Copyright 2010-2015 * Allwinner Technology Co., Ltd. * yangnaitian, 2011-5-24, create this file * javen, 2011-7-18, add clock and power switch * * sunxi HCI Driver * * 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. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(CONFIG_AW_AXP) #include #endif #include "sunxi_hci.h" static u64 sunxi_hci_dmamask = DMA_BIT_MASK(32); static DEFINE_MUTEX(usb_passby_lock); static DEFINE_MUTEX(usb_vbus_lock); static DEFINE_MUTEX(usb_clock_lock); #ifndef CONFIG_OF static char *usbc_name[4] = {"usbc0", "usbc1", "usbc2", "usbc3"}; #endif #ifdef CONFIG_USB_SUNXI_USB_MANAGER int usb_otg_id_status(void); #endif static struct sunxi_hci_hcd sunxi_ohci0; static struct sunxi_hci_hcd sunxi_ohci1; static struct sunxi_hci_hcd sunxi_ohci2; static struct sunxi_hci_hcd sunxi_ohci3; static struct sunxi_hci_hcd sunxi_ehci0; static struct sunxi_hci_hcd sunxi_ehci1; static struct sunxi_hci_hcd sunxi_ehci2; static struct sunxi_hci_hcd sunxi_ehci3; static struct sunxi_hci_hcd sunxi_xhci; #define USBPHYC_REG_o_PHYCTL 0x0404 atomic_t usb1_set_vbus_cnt = ATOMIC_INIT(0); atomic_t usb2_set_vbus_cnt = ATOMIC_INIT(0); atomic_t usb3_set_vbus_cnt = ATOMIC_INIT(0); atomic_t usb4_set_vbus_cnt = ATOMIC_INIT(0); atomic_t usb1_enable_passly_cnt = ATOMIC_INIT(0); atomic_t usb2_enable_passly_cnt = ATOMIC_INIT(0); atomic_t usb3_enable_passly_cnt = ATOMIC_INIT(0); atomic_t usb4_enable_passly_cnt = ATOMIC_INIT(0); static s32 request_usb_regulator_io(struct sunxi_hci_hcd *sunxi_hci) { if (sunxi_hci->regulator_io != NULL) { sunxi_hci->regulator_io_hdle = regulator_get(NULL, sunxi_hci->regulator_io); if (IS_ERR(sunxi_hci->regulator_io_hdle)) { DMSG_PANIC("ERR: some error happen, %s,regulator_io_hdle fail to get regulator!", sunxi_hci->hci_name); sunxi_hci->regulator_io_hdle = NULL; return 0; } } if (sunxi_hci->hsic_flag) { if (sunxi_hci->hsic_regulator_io != NULL) { sunxi_hci->hsic_regulator_io_hdle = regulator_get(NULL, sunxi_hci->hsic_regulator_io); if (IS_ERR(sunxi_hci->hsic_regulator_io_hdle)) { DMSG_PANIC("ERR: some error happen, %s, hsic_regulator_io_hdle fail to get regulator!", sunxi_hci->hci_name); sunxi_hci->hsic_regulator_io_hdle = NULL; return 0; } } } return 0; } static s32 release_usb_regulator_io(struct sunxi_hci_hcd *sunxi_hci) { if (sunxi_hci->regulator_io != NULL) regulator_put(sunxi_hci->regulator_io_hdle); if (sunxi_hci->hsic_flag) { if (sunxi_hci->hsic_regulator_io != NULL) regulator_put(sunxi_hci->hsic_regulator_io_hdle); } return 0; } void __iomem *usb_phy_csr_add(struct sunxi_hci_hcd *sunxi_hci) { return (sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CTRL); } void __iomem *usb_phy_csr_read(struct sunxi_hci_hcd *sunxi_hci) { switch (sunxi_hci->usbc_no) { case 0: return sunxi_hci->otg_vbase + SUNXI_OTG_PHY_STATUS; case 1: return sunxi_hci->usb_vbase + SUNXI_HCI_UTMI_PHY_STATUS; case 2: return sunxi_hci->usb_vbase + SUNXI_HCI_UTMI_PHY_STATUS; case 3: return sunxi_hci->usb_vbase + SUNXI_HCI_UTMI_PHY_STATUS; default: DMSG_PANIC("usb_phy_csr_read is failed in %d index\n", sunxi_hci->usbc_no); break; } return NULL; } void __iomem *usb_phy_csr_write(struct sunxi_hci_hcd *sunxi_hci) { switch (sunxi_hci->usbc_no) { case 0: return sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CTRL; case 1: return sunxi_hci->usb_vbase + SUNXI_HCI_PHY_CTRL; case 2: return sunxi_hci->usb_vbase + SUNXI_HCI_PHY_CTRL; case 3: return sunxi_hci->usb_vbase + SUNXI_HCI_PHY_CTRL; default: DMSG_PANIC("usb_phy_csr_write is failed in %d index\n", sunxi_hci->usbc_no); break; } return NULL; } int usb_phyx_tp_write(struct sunxi_hci_hcd *sunxi_hci, int addr, int data, int len) { int temp = 0; int j = 0; int reg_value = 0; int reg_temp = 0; int dtmp = 0; if (sunxi_hci->otg_vbase == NULL) { DMSG_PANIC("%s,otg_vbase is null\n", __func__); return -1; } if (usb_phy_csr_add(sunxi_hci) == NULL) { DMSG_PANIC("%s,phy_csr_add is null\n", __func__); return -1; } if (usb_phy_csr_write(sunxi_hci) == NULL) { DMSG_PANIC("%s,phy_csr_write is null\n", __func__); return -1; } reg_value = USBC_Readl(sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CFG); reg_temp = reg_value; reg_value |= 0x01; USBC_Writel(reg_value, (sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CFG)); dtmp = data; for (j = 0; j < len; j++) { USBC_Writeb(addr + j, usb_phy_csr_add(sunxi_hci) + 1); temp = USBC_Readb(usb_phy_csr_write(sunxi_hci)); temp &= ~(0x1 << 0); USBC_Writeb(temp, usb_phy_csr_write(sunxi_hci)); temp = USBC_Readb(usb_phy_csr_add(sunxi_hci)); temp &= ~(0x1 << 7); temp |= (dtmp & 0x1) << 7; USBC_Writeb(temp, usb_phy_csr_add(sunxi_hci)); temp = USBC_Readb(usb_phy_csr_write(sunxi_hci)); temp |= (0x1 << 0); USBC_Writeb(temp, usb_phy_csr_write(sunxi_hci)); temp = USBC_Readb(usb_phy_csr_write(sunxi_hci)); temp &= ~(0x1 << 0); USBC_Writeb(temp, usb_phy_csr_write(sunxi_hci)); dtmp >>= 1; } USBC_Writel(reg_temp, (sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CFG)); return 0; } EXPORT_SYMBOL(usb_phyx_tp_write); int usb_phyx_tp_read(struct sunxi_hci_hcd *sunxi_hci, int addr, int len) { int temp = 0; int i = 0; int j = 0; int ret = 0; int reg_value = 0; int reg_temp = 0; if (sunxi_hci->otg_vbase == NULL) { DMSG_PANIC("%s,otg_vbase is null\n", __func__); return -1; } if (usb_phy_csr_add(sunxi_hci) == NULL) { DMSG_PANIC("%s,phy_csr_add is null\n", __func__); return -1; } if (usb_phy_csr_read(sunxi_hci) == NULL) { DMSG_PANIC("%s,phy_csr_read is null\n", __func__); return -1; } reg_value = USBC_Readl(sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CFG); reg_temp = reg_value; reg_value |= 0x01; USBC_Writel(reg_value, (sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CFG)); for (j = len; j > 0; j--) { USBC_Writeb((addr + j - 1), usb_phy_csr_add(sunxi_hci) + 1); for (i = 0; i < 0x4; i++) ; temp = USBC_Readb(usb_phy_csr_read(sunxi_hci)); ret <<= 1; ret |= (temp & 0x1); } USBC_Writel(reg_temp, (sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CFG)); return ret; } EXPORT_SYMBOL(usb_phyx_tp_read); #if defined(CONFIG_ARCH_SUN8IW12) || defined(CONFIG_ARCH_SUN50IW3) \ || defined(CONFIG_ARCH_SUN50IW6) static void usb_hci_phy_txtune(struct sunxi_hci_hcd *sunxi_hci) { int reg_value = 0; reg_value = USBC_Readl(sunxi_hci->usb_vbase + SUNXI_HCI_PHY_TUNE); reg_value |= 0x03 << 2; /* TXRESTUNE */ reg_value &= ~(0xf << 8); reg_value |= 0xc << 8; /* TXVREFTUNE */ USBC_Writel(reg_value, (sunxi_hci->usb_vbase + SUNXI_HCI_PHY_TUNE)); } #endif static void USBC_SelectPhyToHci(struct sunxi_hci_hcd *sunxi_hci) { int reg_value = 0; reg_value = USBC_Readl(sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CFG); reg_value &= ~(0x01); USBC_Writel(reg_value, (sunxi_hci->otg_vbase + SUNXI_OTG_PHY_CFG)); } static void USBC_Clean_SIDDP(struct sunxi_hci_hcd *sunxi_hci) { int reg_value = 0; reg_value = USBC_Readl(sunxi_hci->usb_vbase + SUNXI_HCI_PHY_CTRL); reg_value &= ~(0x01 << SUNXI_HCI_PHY_CTRL_SIDDQ); USBC_Writel(reg_value, (sunxi_hci->usb_vbase + SUNXI_HCI_PHY_CTRL)); } /* * Low-power mode USB standby helper functions. */ #ifdef SUNXI_USB_STANDBY_LOW_POW_MODE void sunxi_hci_set_siddq(struct sunxi_hci_hcd *sunxi_hci) { int reg_value = 0; reg_value = USBC_Readl(sunxi_hci->usb_vbase + SUNXI_HCI_PHY_CTRL); reg_value |= 0x01 << SUNXI_HCI_PHY_CTRL_SIDDQ; USBC_Writel(reg_value, (sunxi_hci->usb_vbase + SUNXI_HCI_PHY_CTRL)); } void sunxi_hci_set_wakeup_ctrl(struct sunxi_hci_hcd *sunxi_hci) { int reg_value = 0; reg_value = USBC_Readl(sunxi_hci->usb_vbase + SUNXI_HCI_CTRL_3); reg_value |= 0x01 << SUNXI_HCI_CTRL_3_REMOTE_WAKEUP; USBC_Writel(reg_value, (sunxi_hci->usb_vbase + SUNXI_HCI_CTRL_3)); } #endif static int open_clock(struct sunxi_hci_hcd *sunxi_hci, u32 ohci) { mutex_lock(&usb_clock_lock); /* * otg and hci share the same phy in fpga, * so need switch phy to hci here. * Notice: not need any more on new platforms. */ /* otg and hci0 Controller Shared phy in SUN50I */ if (sunxi_hci->usbc_no == HCI0_USBC_NO) USBC_SelectPhyToHci(sunxi_hci); /* To fix hardware design issue. */ #if defined(CONFIG_ARCH_SUN8IW12) || defined(CONFIG_ARCH_SUN50IW3) \ || defined(CONFIG_ARCH_SUN50IW6) usb_hci_phy_txtune(sunxi_hci); #endif if (sunxi_hci->ahb && sunxi_hci->mod_usbphy && !sunxi_hci->clk_is_open) { sunxi_hci->clk_is_open = 1; if (clk_prepare_enable(sunxi_hci->ahb)) DMSG_PANIC("ERR:try to prepare_enable %s_ahb failed!\n", sunxi_hci->hci_name); udelay(10); if (sunxi_hci->hsic_flag) { if (sunxi_hci->hsic_ctrl_flag) { if (sunxi_hci->hsic_enable_flag) { if (clk_prepare_enable(sunxi_hci->pll_hsic)) DMSG_PANIC("ERR:try to prepare_enable %s pll_hsic failed!\n", sunxi_hci->hci_name); if (clk_prepare_enable(sunxi_hci->clk_usbhsic12m)) DMSG_PANIC("ERR:try to prepare_enable %s clk_usbhsic12m failed!\n", sunxi_hci->hci_name); if (clk_prepare_enable(sunxi_hci->hsic_usbphy)) DMSG_PANIC("ERR:try to prepare_enable %s_hsic_usbphy failed!\n", sunxi_hci->hci_name); } } else { if (clk_prepare_enable(sunxi_hci->pll_hsic)) DMSG_PANIC("ERR:try to prepare_enable %s pll_hsic failed!\n", sunxi_hci->hci_name); if (clk_prepare_enable(sunxi_hci->clk_usbhsic12m)) DMSG_PANIC("ERR:try to prepare_enable %s clk_usbhsic12m failed!\n", sunxi_hci->hci_name); if (clk_prepare_enable(sunxi_hci->hsic_usbphy)) DMSG_PANIC("ERR:try to prepare_enable %s_hsic_usbphy failed!\n", sunxi_hci->hci_name); } } else { if (clk_prepare_enable(sunxi_hci->mod_usbphy)) DMSG_PANIC("ERR:try to prepare_enable %s_usbphy failed!\n", sunxi_hci->hci_name); } udelay(10); } else { DMSG_PANIC("[%s]: wrn: open clock failed, (0x%p, 0x%p, %d, 0x%p)\n", sunxi_hci->hci_name, sunxi_hci->ahb, sunxi_hci->mod_usbphy, sunxi_hci->clk_is_open, sunxi_hci->mod_usb); } USBC_Clean_SIDDP(sunxi_hci); #if !defined(CONFIG_ARCH_SUN8IW12) && !defined(CONFIG_ARCH_SUN50IW3) \ && !defined(CONFIG_ARCH_SUN8IW6) && !defined(CONFIG_ARCH_SUN50IW6) \ && !defined(CONFIG_ARCH_SUN8IW15) && !defined(CONFIG_ARCH_SUN50IW8) usb_phyx_tp_write(sunxi_hci, 0x2a, 3, 2); #endif mutex_unlock(&usb_clock_lock); return 0; } static int close_clock(struct sunxi_hci_hcd *sunxi_hci, u32 ohci) { if (sunxi_hci->ahb && sunxi_hci->mod_usbphy && sunxi_hci->clk_is_open) { sunxi_hci->clk_is_open = 0; if (sunxi_hci->hsic_flag) { if (sunxi_hci->hsic_ctrl_flag) { if (sunxi_hci->hsic_enable_flag) { clk_disable_unprepare(sunxi_hci->clk_usbhsic12m); clk_disable_unprepare(sunxi_hci->hsic_usbphy); clk_disable_unprepare(sunxi_hci->pll_hsic); } } else { clk_disable_unprepare(sunxi_hci->clk_usbhsic12m); clk_disable_unprepare(sunxi_hci->hsic_usbphy); clk_disable_unprepare(sunxi_hci->pll_hsic); } } else { clk_disable_unprepare(sunxi_hci->mod_usbphy); } clk_disable_unprepare(sunxi_hci->ahb); udelay(10); } else { DMSG_PANIC("[%s]: wrn: open clock failed, (0x%p, 0x%p, %d, 0x%p)\n", sunxi_hci->hci_name, sunxi_hci->ahb, sunxi_hci->mod_usbphy, sunxi_hci->clk_is_open, sunxi_hci->mod_usb); } return 0; } static int usb_get_hsic_phy_ctrl(int value, int enable) { if (enable) { value |= (0x07<<8); value |= (0x01<<1); value |= (0x01<<0); value |= (0x01<<16); value |= (0x01<<20); } else { value &= ~(0x07<<8); value &= ~(0x01<<1); value &= ~(0x01<<0); value &= ~(0x01<<16); value &= ~(0x01<<20); } return value; } static void __usb_passby(struct sunxi_hci_hcd *sunxi_hci, u32 enable, atomic_t *usb_enable_passly_cnt) { unsigned long reg_value = 0; reg_value = USBC_Readl(sunxi_hci->usb_vbase + SUNXI_USB_PMU_IRQ_ENABLE); if (enable && (atomic_read(usb_enable_passly_cnt) == 0)) { if (sunxi_hci->hsic_flag) { reg_value = usb_get_hsic_phy_ctrl(reg_value, enable); } else { /* AHB Master interface INCR8 enable */ reg_value |= (1 << 10); /* AHB Master interface burst type INCR4 enable */ reg_value |= (1 << 9); /* AHB Master interface INCRX align enable */ reg_value |= (1 << 8); if (sunxi_hci->usbc_no == HCI0_USBC_NO) #ifdef SUNXI_USB_FPGA /* enable ULPI, disable UTMI */ reg_value |= (0 << 0); #else /* enable UTMI, disable ULPI */ reg_value |= (1 << 0); #endif else /* ULPI bypass enable */ reg_value |= (1 << 0); } } else if (!enable && (atomic_read(usb_enable_passly_cnt) == 1)) { if (sunxi_hci->hsic_flag) { reg_value = usb_get_hsic_phy_ctrl(reg_value, enable); } else { /* AHB Master interface INCR8 disable */ reg_value &= ~(1 << 10); /* AHB Master interface burst type INCR4 disable */ reg_value &= ~(1 << 9); /* AHB Master interface INCRX align disable */ reg_value &= ~(1 << 8); /* ULPI bypass disable */ reg_value &= ~(1 << 0); } } USBC_Writel(reg_value, (sunxi_hci->usb_vbase + SUNXI_USB_PMU_IRQ_ENABLE)); if (enable) atomic_add(1, usb_enable_passly_cnt); else atomic_sub(1, usb_enable_passly_cnt); } static void usb_passby(struct sunxi_hci_hcd *sunxi_hci, u32 enable) { spinlock_t lock; unsigned long flags = 0; mutex_lock(&usb_passby_lock); spin_lock_init(&lock); spin_lock_irqsave(&lock, flags); /* enable passby */ if (sunxi_hci->usbc_no == HCI0_USBC_NO) { __usb_passby(sunxi_hci, enable, &usb1_enable_passly_cnt); } else if (sunxi_hci->usbc_no == HCI1_USBC_NO) { __usb_passby(sunxi_hci, enable, &usb2_enable_passly_cnt); } else if (sunxi_hci->usbc_no == HCI2_USBC_NO) { __usb_passby(sunxi_hci, enable, &usb3_enable_passly_cnt); } else if (sunxi_hci->usbc_no == HCI3_USBC_NO) { __usb_passby(sunxi_hci, enable, &usb4_enable_passly_cnt); } else { DMSG_PANIC("EER: unknown usbc_no(%d)\n", sunxi_hci->usbc_no); spin_unlock_irqrestore(&lock, flags); mutex_unlock(&usb_passby_lock); return; } spin_unlock_irqrestore(&lock, flags); mutex_unlock(&usb_passby_lock); } static int alloc_pin(struct sunxi_hci_hcd *sunxi_hci) { u32 ret = 1; if (sunxi_hci->drv_vbus_gpio_valid) { ret = gpio_request(sunxi_hci->drv_vbus_gpio_set.gpio, NULL); if (ret != 0) { DMSG_PANIC("request %s gpio:%d\n", sunxi_hci->hci_name, sunxi_hci->drv_vbus_gpio_set.gpio); } else { gpio_direction_output(sunxi_hci->drv_vbus_gpio_set.gpio, 0); } } if (sunxi_hci->hsic_flag) { /* Marvell 4G HSIC ctrl */ if (sunxi_hci->usb_host_hsic_rdy_valid) { ret = gpio_request(sunxi_hci->usb_host_hsic_rdy.gpio, NULL); if (ret != 0) { DMSG_PANIC("ERR: gpio_request failed\n"); sunxi_hci->usb_host_hsic_rdy_valid = 0; } else { gpio_direction_output(sunxi_hci->usb_host_hsic_rdy.gpio, 0); } } /* SMSC usb3503 HSIC HUB ctrl */ if (sunxi_hci->usb_hsic_usb3503_flag) { if (sunxi_hci->usb_hsic_hub_connect_valid) { ret = gpio_request(sunxi_hci->usb_hsic_hub_connect.gpio, NULL); if (ret != 0) { DMSG_PANIC("ERR: gpio_request failed\n"); sunxi_hci->usb_hsic_hub_connect_valid = 0; } else { gpio_direction_output(sunxi_hci->usb_hsic_hub_connect.gpio, 1); } } if (sunxi_hci->usb_hsic_int_n_valid) { ret = gpio_request(sunxi_hci->usb_hsic_int_n.gpio, NULL); if (ret != 0) { DMSG_PANIC("ERR: gpio_request failed\n"); sunxi_hci->usb_hsic_int_n_valid = 0; } else { gpio_direction_output(sunxi_hci->usb_hsic_int_n.gpio, 1); } } msleep(20); if (sunxi_hci->usb_hsic_reset_n_valid) { ret = gpio_request(sunxi_hci->usb_hsic_reset_n.gpio, NULL); if (ret != 0) { DMSG_PANIC("ERR: gpio_request failed\n"); sunxi_hci->usb_hsic_reset_n_valid = 0; } else { gpio_direction_output(sunxi_hci->usb_hsic_reset_n.gpio, 1); } } /** * usb3503 device goto hub connect status * is need 100ms after reset */ msleep(100); } } return 0; } static void free_pin(struct sunxi_hci_hcd *sunxi_hci) { if (sunxi_hci->drv_vbus_gpio_valid) { gpio_free(sunxi_hci->drv_vbus_gpio_set.gpio); sunxi_hci->drv_vbus_gpio_valid = 0; } if (sunxi_hci->hsic_flag) { /* Marvell 4G HSIC ctrl */ if (sunxi_hci->usb_host_hsic_rdy_valid) { gpio_free(sunxi_hci->usb_host_hsic_rdy.gpio); sunxi_hci->usb_host_hsic_rdy_valid = 0; } /* SMSC usb3503 HSIC HUB ctrl */ if (sunxi_hci->usb_hsic_usb3503_flag) { if (sunxi_hci->usb_hsic_hub_connect_valid) { gpio_free(sunxi_hci->usb_hsic_hub_connect.gpio); sunxi_hci->usb_hsic_hub_connect_valid = 0; } if (sunxi_hci->usb_hsic_int_n_valid) { gpio_free(sunxi_hci->usb_hsic_int_n.gpio); sunxi_hci->usb_hsic_int_n_valid = 0; } if (sunxi_hci->usb_hsic_reset_n_valid) { gpio_free(sunxi_hci->usb_hsic_reset_n.gpio); sunxi_hci->usb_hsic_reset_n_valid = 0; } } } } void sunxi_set_host_hisc_rdy(struct sunxi_hci_hcd *sunxi_hci, int is_on) { if (sunxi_hci->usb_host_hsic_rdy_valid) { /* set config, output */ gpio_direction_output(sunxi_hci->usb_host_hsic_rdy.gpio, is_on); } } EXPORT_SYMBOL(sunxi_set_host_hisc_rdy); void sunxi_set_host_vbus(struct sunxi_hci_hcd *sunxi_hci, int is_on) { if (sunxi_hci->drv_vbus_type == USB_DRV_VBUS_TYPE_GIPO) { if (sunxi_hci->drv_vbus_gpio_valid) __gpio_set_value(sunxi_hci->drv_vbus_gpio_set.gpio, is_on); } else if (sunxi_hci->drv_vbus_type == USB_DRV_VBUS_TYPE_AXP) { #if defined(CONFIG_AW_AXP) axp_usb_vbus_output(is_on); #endif } } EXPORT_SYMBOL(sunxi_set_host_vbus); static void __sunxi_set_vbus(struct sunxi_hci_hcd *sunxi_hci, int is_on) { /* set power flag */ sunxi_hci->power_flag = is_on; if ((sunxi_hci->regulator_io != NULL) && (sunxi_hci->regulator_io_hdle != NULL)) { if (is_on) { if (regulator_enable(sunxi_hci->regulator_io_hdle) < 0) DMSG_INFO("%s: regulator_enable fail\n", sunxi_hci->hci_name); } else { if (regulator_disable(sunxi_hci->regulator_io_hdle) < 0) DMSG_INFO("%s: regulator_disable fail\n", sunxi_hci->hci_name); } } if (sunxi_hci->hsic_flag) { if ((sunxi_hci->hsic_regulator_io != NULL) && (sunxi_hci->hsic_regulator_io_hdle != NULL)) { if (is_on) { if (regulator_enable(sunxi_hci->hsic_regulator_io_hdle) < 0) DMSG_INFO("%s: hsic_regulator_enable fail\n", sunxi_hci->hci_name); } else { if (regulator_disable(sunxi_hci->hsic_regulator_io_hdle) < 0) DMSG_INFO("%s: hsic_regulator_disable fail\n", sunxi_hci->hci_name); } } } /** * No care of usb0 vbus when otg connect pc * setup system without battery and to return. */ #ifdef CONFIG_USB_SUNXI_USB_MANAGER #if !defined(CONFIG_ARCH_SUN8IW6) if (sunxi_hci->usbc_no == HCI0_USBC_NO) { if (is_on) { if (usb_otg_id_status() == 1) return; } } #endif #endif if (sunxi_hci->drv_vbus_type == USB_DRV_VBUS_TYPE_GIPO) { if (sunxi_hci->drv_vbus_gpio_valid) __gpio_set_value(sunxi_hci->drv_vbus_gpio_set.gpio, is_on); } else if (sunxi_hci->drv_vbus_type == USB_DRV_VBUS_TYPE_AXP) { #if defined(CONFIG_AW_AXP) axp_usb_vbus_output(is_on); #endif } } static void sunxi_set_vbus(struct sunxi_hci_hcd *sunxi_hci, int is_on) { DMSG_DEBUG("[%s]: sunxi_set_vbus cnt %d\n", sunxi_hci->hci_name, (sunxi_hci->usbc_no == 1) ? atomic_read(&usb1_set_vbus_cnt) : atomic_read(&usb2_set_vbus_cnt)); mutex_lock(&usb_vbus_lock); if (sunxi_hci->usbc_no == HCI0_USBC_NO) { if (is_on && (atomic_read(&usb1_set_vbus_cnt) == 0)) __sunxi_set_vbus(sunxi_hci, is_on); /* power on */ else if (!is_on && atomic_read(&usb1_set_vbus_cnt) == 1) __sunxi_set_vbus(sunxi_hci, is_on); /* power off */ if (is_on) atomic_add(1, &usb1_set_vbus_cnt); else atomic_sub(1, &usb1_set_vbus_cnt); } else if (sunxi_hci->usbc_no == HCI1_USBC_NO) { if (is_on && (atomic_read(&usb2_set_vbus_cnt) == 0)) __sunxi_set_vbus(sunxi_hci, is_on); /* power on */ else if (!is_on && atomic_read(&usb2_set_vbus_cnt) == 1) __sunxi_set_vbus(sunxi_hci, is_on); /* power off */ if (is_on) atomic_add(1, &usb2_set_vbus_cnt); else atomic_sub(1, &usb2_set_vbus_cnt); } else if (sunxi_hci->usbc_no == HCI2_USBC_NO) { if (is_on && (atomic_read(&usb3_set_vbus_cnt) == 0)) __sunxi_set_vbus(sunxi_hci, is_on); /* power on */ else if (!is_on && atomic_read(&usb3_set_vbus_cnt) == 1) __sunxi_set_vbus(sunxi_hci, is_on); /* power off */ if (is_on) atomic_add(1, &usb3_set_vbus_cnt); else atomic_sub(1, &usb3_set_vbus_cnt); } else if (sunxi_hci->usbc_no == HCI3_USBC_NO) { if (is_on && (atomic_read(&usb4_set_vbus_cnt) == 0)) __sunxi_set_vbus(sunxi_hci, is_on); /* power on */ else if (!is_on && atomic_read(&usb4_set_vbus_cnt) == 1) __sunxi_set_vbus(sunxi_hci, is_on); /* power off */ if (is_on) atomic_add(1, &usb4_set_vbus_cnt); else atomic_sub(1, &usb4_set_vbus_cnt); } else { DMSG_INFO("[%s]: sunxi_set_vbus no: %d\n", sunxi_hci->hci_name, sunxi_hci->usbc_no); } mutex_unlock(&usb_vbus_lock); } static int sunxi_get_hci_base(struct platform_device *pdev, struct sunxi_hci_hcd *sunxi_hci) { struct device_node *np = pdev->dev.of_node; struct resource res; int ret = 0; sunxi_hci->usb_vbase = of_iomap(np, 0); if (sunxi_hci->usb_vbase == NULL) { dev_err(&pdev->dev, "%s, can't get vbase resource\n", sunxi_hci->hci_name); return -EINVAL; } sunxi_hci->otg_vbase = of_iomap(np, 2); if (sunxi_hci->otg_vbase == NULL) { dev_err(&pdev->dev, "%s, can't get otg_vbase resource\n", sunxi_hci->hci_name); return -EINVAL; } ret = of_address_to_resource(np, 0, &res); if (ret) dev_err(&pdev->dev, "could not get regs\n"); sunxi_hci->usb_base_res = &res; return 0; } static int sunxi_get_ohci_clock_src(struct platform_device *pdev, struct sunxi_hci_hcd *sunxi_hci) { struct device_node *np = pdev->dev.of_node; sunxi_hci->clk_usbohci12m = of_clk_get(np, 2); if (IS_ERR(sunxi_hci->clk_usbohci12m)) { sunxi_hci->clk_usbohci12m = NULL; DMSG_INFO("%s get usb clk_usbohci12m clk failed.\n", sunxi_hci->hci_name); } sunxi_hci->clk_hoscx2 = of_clk_get(np, 3); if (IS_ERR(sunxi_hci->clk_hoscx2)) { sunxi_hci->clk_hoscx2 = NULL; DMSG_INFO("%s get usb clk_hoscx2 clk failed.\n", sunxi_hci->hci_name); } sunxi_hci->clk_hosc = of_clk_get(np, 4); if (IS_ERR(sunxi_hci->clk_hosc)) { sunxi_hci->clk_hosc = NULL; DMSG_INFO("%s get usb clk_hosc failed.\n", sunxi_hci->hci_name); } sunxi_hci->clk_losc = of_clk_get(np, 5); if (IS_ERR(sunxi_hci->clk_losc)) { sunxi_hci->clk_losc = NULL; DMSG_INFO("%s get usb clk_losc clk failed.\n", sunxi_hci->hci_name); } return 0; } static int sunxi_get_hci_clock(struct platform_device *pdev, struct sunxi_hci_hcd *sunxi_hci) { struct device_node *np = pdev->dev.of_node; sunxi_hci->ahb = of_clk_get(np, 1); if (IS_ERR(sunxi_hci->ahb)) { sunxi_hci->ahb = NULL; DMSG_PANIC("ERR: %s get usb ahb_otg clk failed.\n", sunxi_hci->hci_name); return -EINVAL; } sunxi_hci->mod_usbphy = of_clk_get(np, 0); if (IS_ERR(sunxi_hci->mod_usbphy)) { sunxi_hci->mod_usbphy = NULL; DMSG_PANIC("ERR: %s get usb mod_usbphy failed.\n", sunxi_hci->hci_name); return -EINVAL; } if (sunxi_hci->hsic_flag) { sunxi_hci->hsic_usbphy = of_clk_get(np, 2); if (IS_ERR(sunxi_hci->hsic_usbphy)) { sunxi_hci->hsic_usbphy = NULL; DMSG_PANIC("ERR: %s get usb hsic_usbphy failed.\n", sunxi_hci->hci_name); } sunxi_hci->clk_usbhsic12m = of_clk_get(np, 3); if (IS_ERR(sunxi_hci->clk_usbhsic12m)) { sunxi_hci->clk_usbhsic12m = NULL; DMSG_PANIC("ERR: %s get usb clk_usbhsic12m failed.\n", sunxi_hci->hci_name); } sunxi_hci->pll_hsic = of_clk_get(np, 4); if (IS_ERR(sunxi_hci->pll_hsic)) { sunxi_hci->pll_hsic = NULL; DMSG_PANIC("ERR: %s get usb pll_hsic failed.\n", sunxi_hci->hci_name); } } return 0; } static int get_usb_cfg(struct platform_device *pdev, struct sunxi_hci_hcd *sunxi_hci) { struct device_node *usbc_np = NULL; char np_name[10]; int ret = -1; sprintf(np_name, "usbc%d", sunxi_get_hci_num(pdev)); usbc_np = of_find_node_by_type(NULL, np_name); /* usbc enable */ ret = of_property_read_string(usbc_np, "status", &sunxi_hci->used_status); if (ret) { DMSG_PRINT("get %s used is fail, %d\n", sunxi_hci->hci_name, -ret); sunxi_hci->used = 0; } else if (!strcmp(sunxi_hci->used_status, "okay")) { sunxi_hci->used = 1; } else { sunxi_hci->used = 0; } /* usbc init_state */ ret = of_property_read_u32(usbc_np, KEY_USB_HOST_INIT_STATE, &sunxi_hci->host_init_state); if (ret) { DMSG_PRINT("get %s init_state is fail, %d\n", sunxi_hci->hci_name, -ret); } sunxi_hci->hsic_flag = 0; if (sunxi_hci->usbc_no == HCI1_USBC_NO) { ret = of_property_read_u32(usbc_np, KEY_USB_HSIC_USBED, &sunxi_hci->hsic_flag); if (ret) sunxi_hci->hsic_flag = 0; if (sunxi_hci->hsic_flag) { if (!strncmp(sunxi_hci->hci_name, "ohci", strlen("ohci"))) { DMSG_PRINT("HSIC is no susport in %s, and to return\n", sunxi_hci->hci_name); sunxi_hci->used = 0; return 0; } /* hsic regulator_io */ ret = of_property_read_string(usbc_np, KEY_USB_HSIC_REGULATOR_IO, &sunxi_hci->hsic_regulator_io); if (ret) { DMSG_PRINT("get %s, hsic_regulator_io is fail, %d\n", sunxi_hci->hci_name, -ret); sunxi_hci->hsic_regulator_io = NULL; } else { if (!strcmp(sunxi_hci->hsic_regulator_io, "nocare")) { DMSG_PRINT("get %s, hsic_regulator_io is no nocare\n", sunxi_hci->hci_name); sunxi_hci->hsic_regulator_io = NULL; } } /* Marvell 4G HSIC ctrl */ ret = of_property_read_u32(usbc_np, KEY_USB_HSIC_CTRL, &sunxi_hci->hsic_ctrl_flag); if (ret) { DMSG_PRINT("get %s usb_hsic_ctrl is fail, %d\n", sunxi_hci->hci_name, -ret); sunxi_hci->hsic_ctrl_flag = 0; } if (sunxi_hci->hsic_ctrl_flag) { sunxi_hci->usb_host_hsic_rdy.gpio = of_get_named_gpio(usbc_np, KEY_USB_HSIC_RDY_GPIO, 0); if (gpio_is_valid(sunxi_hci->usb_host_hsic_rdy.gpio)) { sunxi_hci->usb_host_hsic_rdy_valid = 1; } else { sunxi_hci->usb_host_hsic_rdy_valid = 0; DMSG_PRINT("get %s drv_vbus_gpio is fail\n", sunxi_hci->hci_name); } } else { sunxi_hci->usb_host_hsic_rdy_valid = 0; } /* SMSC usb3503 HSIC HUB ctrl */ ret = of_property_read_u32(usbc_np, "usb_hsic_usb3503_flag", &sunxi_hci->usb_hsic_usb3503_flag); if (ret) { DMSG_PRINT("get %s usb_hsic_usb3503_flag is fail, %d\n", sunxi_hci->hci_name, -ret); sunxi_hci->usb_hsic_usb3503_flag = 0; } if (sunxi_hci->usb_hsic_usb3503_flag) { sunxi_hci->usb_hsic_hub_connect.gpio = of_get_named_gpio(usbc_np, "usb_hsic_hub_connect_gpio", 0); if (gpio_is_valid(sunxi_hci->usb_hsic_hub_connect.gpio)) { sunxi_hci->usb_hsic_hub_connect_valid = 1; } else { sunxi_hci->usb_hsic_hub_connect_valid = 0; DMSG_PRINT("get %s usb_hsic_hub_connect is fail\n", sunxi_hci->hci_name); } sunxi_hci->usb_hsic_int_n.gpio = of_get_named_gpio(usbc_np, "usb_hsic_int_n_gpio", 0); if (gpio_is_valid(sunxi_hci->usb_hsic_int_n.gpio)) { sunxi_hci->usb_hsic_int_n_valid = 1; } else { sunxi_hci->usb_hsic_int_n_valid = 0; DMSG_PRINT("get %s usb_hsic_int_n is fail\n", sunxi_hci->hci_name); } sunxi_hci->usb_hsic_reset_n.gpio = of_get_named_gpio(usbc_np, "usb_hsic_reset_n_gpio", 0); if (gpio_is_valid(sunxi_hci->usb_hsic_reset_n.gpio)) { sunxi_hci->usb_hsic_reset_n_valid = 1; } else { sunxi_hci->usb_hsic_reset_n_valid = 0; DMSG_PRINT("get %s usb_hsic_reset_n is fail\n", sunxi_hci->hci_name); } } else { sunxi_hci->usb_hsic_hub_connect_valid = 0; sunxi_hci->usb_hsic_int_n_valid = 0; sunxi_hci->usb_hsic_reset_n_valid = 0; } } else { sunxi_hci->hsic_ctrl_flag = 0; sunxi_hci->usb_host_hsic_rdy_valid = 0; sunxi_hci->usb_hsic_hub_connect_valid = 0; sunxi_hci->usb_hsic_int_n_valid = 0; sunxi_hci->usb_hsic_reset_n_valid = 0; } } /* usbc wakeup_suspend */ ret = of_property_read_u32(usbc_np, KEY_USB_WAKEUP_SUSPEND, &sunxi_hci->wakeup_suspend); if (ret) { DMSG_PRINT("get %s wakeup_suspend is fail, %d\n", sunxi_hci->hci_name, -ret); } /* usbc drv_vbus */ ret = of_property_read_string(usbc_np, KEY_USB_DRVVBUS_GPIO, &sunxi_hci->drv_vbus_name); if (ret) { DMSG_PRINT("get drv_vbus is fail, %d\n", -ret); sunxi_hci->drv_vbus_gpio_valid = 0; } else { if (strncmp(sunxi_hci->drv_vbus_name, "axp_ctrl", 8) == 0) { sunxi_hci->drv_vbus_type = USB_DRV_VBUS_TYPE_AXP; sunxi_hci->drv_vbus_gpio_valid = 0; } else { /* get drv vbus gpio */ sunxi_hci->drv_vbus_gpio_set.gpio = of_get_named_gpio(usbc_np, KEY_USB_DRVVBUS_GPIO, 0); if (gpio_is_valid(sunxi_hci->drv_vbus_gpio_set.gpio)) { sunxi_hci->drv_vbus_gpio_valid = 1; sunxi_hci->drv_vbus_type = USB_DRV_VBUS_TYPE_GIPO; } else { sunxi_hci->drv_vbus_gpio_valid = 0; } } } /* usbc regulator_io */ ret = of_property_read_string(usbc_np, KEY_USB_REGULATOR_IO, &sunxi_hci->regulator_io); if (ret) { DMSG_PRINT("get %s, regulator_io is fail, %d\n", sunxi_hci->hci_name, -ret); sunxi_hci->regulator_io = NULL; } else { if (!strcmp(sunxi_hci->regulator_io, "nocare")) { DMSG_PRINT("get %s, regulator_io is no nocare\n", sunxi_hci->hci_name); sunxi_hci->regulator_io = NULL; } } return 0; } int sunxi_get_hci_num(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; int ret = 0; int hci_num = 0; ret = of_property_read_u32(np, HCI_USBC_NO, &hci_num); if (ret) DMSG_PANIC("get hci_ctrl_num is fail, %d\n", -ret); return hci_num; } static int sunxi_get_hci_name(struct platform_device *pdev, struct sunxi_hci_hcd *sunxi_hci) { struct device_node *np = pdev->dev.of_node; sprintf(sunxi_hci->hci_name, "%s", np->name); return 0; } static int sunxi_get_hci_irq_no(struct platform_device *pdev, struct sunxi_hci_hcd *sunxi_hci) { sunxi_hci->irq_no = platform_get_irq(pdev, 0); return 0; } static int sunxi_get_hci_resource(struct platform_device *pdev, struct sunxi_hci_hcd *sunxi_hci, int usbc_no) { if (sunxi_hci == NULL) { dev_err(&pdev->dev, "sunxi_hci is NULL\n"); return -1; } memset(sunxi_hci, 0, sizeof(struct sunxi_hci_hcd)); sunxi_hci->usbc_no = usbc_no; sunxi_get_hci_name(pdev, sunxi_hci); get_usb_cfg(pdev, sunxi_hci); if (sunxi_hci->used == 0) { DMSG_INFO("sunxi %s is no enable\n", sunxi_hci->hci_name); return -1; } sunxi_get_hci_base(pdev, sunxi_hci); sunxi_get_hci_clock(pdev, sunxi_hci); sunxi_get_hci_irq_no(pdev, sunxi_hci); request_usb_regulator_io(sunxi_hci); sunxi_hci->open_clock = open_clock; sunxi_hci->close_clock = close_clock; sunxi_hci->set_power = sunxi_set_vbus; sunxi_hci->usb_passby = usb_passby; alloc_pin(sunxi_hci); pdev->dev.platform_data = sunxi_hci; return 0; } int exit_sunxi_hci(struct sunxi_hci_hcd *sunxi_hci) { release_usb_regulator_io(sunxi_hci); free_pin(sunxi_hci); return 0; } int init_sunxi_hci(struct platform_device *pdev, int usbc_type) { struct sunxi_hci_hcd *sunxi_hci = NULL; int usbc_no = 0; int hci_num = -1; int ret = -1; #ifdef CONFIG_OF pdev->dev.dma_mask = &sunxi_hci_dmamask; pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); #endif hci_num = sunxi_get_hci_num(pdev); if (usbc_type == SUNXI_USB_XHCI) { usbc_no = hci_num; sunxi_hci = &sunxi_xhci; } else { switch (hci_num) { case HCI0_USBC_NO: usbc_no = HCI0_USBC_NO; if (usbc_type == SUNXI_USB_EHCI) { sunxi_hci = &sunxi_ehci0; } else if (usbc_type == SUNXI_USB_OHCI) { sunxi_hci = &sunxi_ohci0; } else { dev_err(&pdev->dev, "get hci num fail: %d\n", hci_num); return -1; } break; case HCI1_USBC_NO: usbc_no = HCI1_USBC_NO; if (usbc_type == SUNXI_USB_EHCI) { sunxi_hci = &sunxi_ehci1; } else if (usbc_type == SUNXI_USB_OHCI) { sunxi_hci = &sunxi_ohci1; } else { dev_err(&pdev->dev, "get hci num fail: %d\n", hci_num); return -1; } break; case HCI2_USBC_NO: usbc_no = HCI2_USBC_NO; if (usbc_type == SUNXI_USB_EHCI) { sunxi_hci = &sunxi_ehci2; } else if (usbc_type == SUNXI_USB_OHCI) { sunxi_hci = &sunxi_ohci2; } else { dev_err(&pdev->dev, "get hci num fail: %d\n", hci_num); return -1; } break; case HCI3_USBC_NO: usbc_no = HCI3_USBC_NO; if (usbc_type == SUNXI_USB_EHCI) { sunxi_hci = &sunxi_ehci3; } else if (usbc_type == SUNXI_USB_OHCI) { sunxi_hci = &sunxi_ohci3; } else { dev_err(&pdev->dev, "get hci num fail: %d\n", hci_num); return -1; } break; default: dev_err(&pdev->dev, "get hci num fail: %d\n", hci_num); return -1; } } ret = sunxi_get_hci_resource(pdev, sunxi_hci, usbc_no); if (ret != 0) return ret; if (usbc_type == SUNXI_USB_OHCI) ret = sunxi_get_ohci_clock_src(pdev, sunxi_hci); return ret; } EXPORT_SYMBOL(init_sunxi_hci); MODULE_LICENSE("GPL");