diff options
Diffstat (limited to 'target/linux/gemini/files/drivers/usb')
| -rw-r--r-- | target/linux/gemini/files/drivers/usb/host/ehci-fotg2.c | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/target/linux/gemini/files/drivers/usb/host/ehci-fotg2.c b/target/linux/gemini/files/drivers/usb/host/ehci-fotg2.c deleted file mode 100644 index 0717abce9c..0000000000 --- a/target/linux/gemini/files/drivers/usb/host/ehci-fotg2.c +++ /dev/null @@ -1,258 +0,0 @@ -/* - * Gemini EHCI Host Controller driver - * - * Copyright (C) 2014 Roman Yeryomin <roman@advem.lv> - * Copyright (C) 2012 Tobias Waldvogel - * based on GPLd code from Sony Computer Entertainment 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; version 2 of the License. - */ -#include <linux/kernel.h> -#include <linux/hrtimer.h> -#include <linux/io.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/usb.h> -#include <linux/usb/hcd.h> -#include <linux/usb/ehci_pdriver.h> - -#include <mach/hardware.h> -#include <mach/global_reg.h> - -#include "ehci.h" - -#define DRV_NAME "ehci-fotg2" - -#define HCD_MISC 0x40 - -#define OTGC_SCR 0x80 -#define OTGC_INT_STS 0x84 -#define OTGC_INT_EN 0x88 - -#define GLOBAL_ISR 0xC0 -#define GLOBAL_ICR 0xC4 - -#define GLOBAL_INT_POLARITY (1 << 3) -#define GLOBAL_INT_MASK_HC (1 << 2) -#define GLOBAL_INT_MASK_OTG (1 << 1) -#define GLOBAL_INT_MASK_DEV (1 << 0) - -#define OTGC_SCR_ID (1 << 21) -#define OTGC_SCR_CROLE (1 << 20) -#define OTGC_SCR_VBUS_VLD (1 << 19) -#define OTGC_SCR_A_SRP_RESP_TYPE (1 << 8) -#define OTGC_SCR_A_SRP_DET_EN (1 << 7) -#define OTGC_SCR_A_SET_B_HNP_EN (1 << 6) -#define OTGC_SCR_A_BUS_DROP (1 << 5) -#define OTGC_SCR_A_BUS_REQ (1 << 4) - -#define OTGC_INT_APLGRMV (1 << 12) -#define OTGC_INT_BPLGRMV (1 << 11) -#define OTGC_INT_OVC (1 << 10) -#define OTGC_INT_IDCHG (1 << 9) -#define OTGC_INT_RLCHG (1 << 8) -#define OTGC_INT_AVBUSERR (1 << 5) -#define OTGC_INT_ASRPDET (1 << 4) -#define OTGC_INT_BSRPDN (1 << 0) - -#define OTGC_INT_A_TYPE ( \ - OTGC_INT_ASRPDET | \ - OTGC_INT_AVBUSERR | \ - OTGC_INT_OVC | \ - OTGC_INT_RLCHG | \ - OTGC_INT_IDCHG | \ - OTGC_INT_APLGRMV \ - ) -#define OTGC_INT_B_TYPE ( \ - OTGC_INT_AVBUSERR | \ - OTGC_INT_OVC | \ - OTGC_INT_RLCHG | \ - OTGC_INT_IDCHG \ - ) - - -static void fotg2_otg_init(struct usb_hcd *hcd) -{ - u32 val; - - writel(GLOBAL_INT_POLARITY | GLOBAL_INT_MASK_HC | - GLOBAL_INT_MASK_OTG | GLOBAL_INT_MASK_DEV, - hcd->regs + GLOBAL_ICR); - - val = readl(hcd->regs + OTGC_SCR); - val &= ~(OTGC_SCR_A_SRP_RESP_TYPE | OTGC_SCR_A_SRP_DET_EN | - OTGC_SCR_A_BUS_DROP | OTGC_SCR_A_SET_B_HNP_EN); - val |= OTGC_SCR_A_BUS_REQ; - writel(val, hcd->regs + OTGC_SCR); - - writel(OTGC_INT_A_TYPE, hcd->regs + OTGC_INT_EN); - - /* setup MISC register, fixes timing problems */ - val = readl(hcd->regs + HCD_MISC); - val |= 0xD; - writel(val, hcd->regs + HCD_MISC); - - writel(~0, hcd->regs + GLOBAL_ISR); - writel(~0, hcd->regs + OTGC_INT_STS); -} - -static int fotg2_ehci_reset(struct usb_hcd *hcd) -{ - int retval; - - retval = ehci_setup(hcd); - if (retval) - return retval; - - writel(GLOBAL_INT_POLARITY, hcd->regs + GLOBAL_ICR); - return 0; -} - -static const struct hc_driver fotg2_ehci_hc_driver = { - .description = hcd_name, - .product_desc = "FOTG2 EHCI Host Controller", - .hcd_priv_size = sizeof(struct ehci_hcd), - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - .reset = fotg2_ehci_reset, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - .get_frame_number = ehci_get_frame, - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, -#if defined(CONFIG_PM) - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, -#endif - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; - -static irqreturn_t fotg2_ehci_irq(int irq, void *data) -{ - struct usb_hcd *hcd = data; - u32 icr, sts; - irqreturn_t retval; - - icr = readl(hcd->regs + GLOBAL_ICR); - writel(GLOBAL_INT_POLARITY | GLOBAL_INT_MASK_HC | - GLOBAL_INT_MASK_OTG | GLOBAL_INT_MASK_DEV, - hcd->regs + GLOBAL_ICR); - - retval = IRQ_NONE; - - sts = ~icr; - sts &= GLOBAL_INT_MASK_HC | GLOBAL_INT_MASK_OTG | GLOBAL_INT_MASK_DEV; - sts &= readl(hcd->regs + GLOBAL_ISR); - writel(sts, hcd->regs + GLOBAL_ISR); - - if (unlikely(sts & GLOBAL_INT_MASK_DEV)) { - ehci_warn(hcd_to_ehci(hcd), - "Received unexpected irq for device role\n"); - retval = IRQ_HANDLED; - } - - if (unlikely(sts & GLOBAL_INT_MASK_OTG)) { - u32 otg_sts; - - otg_sts = readl(hcd->regs + OTGC_INT_STS); - writel(otg_sts, hcd->regs + OTGC_INT_STS); - - ehci_warn(hcd_to_ehci(hcd), - "Received unexpected irq for OTG management\n"); - retval = IRQ_HANDLED; - } - - if (sts & GLOBAL_INT_MASK_HC) { - retval = IRQ_NONE; - } - - writel(icr, hcd->regs + GLOBAL_ICR); - return retval; -} - -static int fotg2_ehci_probe(struct platform_device *pdev) -{ - struct usb_hcd *hcd; - struct resource *res; - int irq , err; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - pr_err("no irq provided"); - return irq; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - pr_err("no memory resource provided"); - return -ENXIO; - } - - hcd = usb_create_hcd(&fotg2_ehci_hc_driver, &pdev->dev, - dev_name(&pdev->dev)); - if (!hcd) - return -ENOMEM; - - hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_size(res); - - hcd->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(hcd->regs)) { - err = -ENOMEM; - goto err_put_hcd; - } - - hcd->has_tt = 1; - hcd_to_ehci(hcd)->caps = hcd->regs; - - fotg2_otg_init(hcd); - - err = request_irq(irq, &fotg2_ehci_irq, IRQF_SHARED, "fotg2", hcd); - if (err) - goto err_put_hcd; - - err = usb_add_hcd(hcd, irq, IRQF_SHARED); - if (err) - goto err_put_hcd; - - platform_set_drvdata(pdev, hcd); - return 0; - -err_put_hcd: - usb_put_hcd(hcd); - return err; -} - -static int fotg2_ehci_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - - writel(GLOBAL_INT_POLARITY | GLOBAL_INT_MASK_HC | - GLOBAL_INT_MASK_OTG | GLOBAL_INT_MASK_DEV, - hcd->regs + GLOBAL_ICR); - - free_irq(hcd->irq, hcd); - usb_remove_hcd(hcd); - usb_put_hcd(hcd); - platform_set_drvdata(pdev, NULL); - - return 0; -} - -MODULE_ALIAS("platform:" DRV_NAME); - -static struct platform_driver ehci_fotg2_driver = { - .probe = fotg2_ehci_probe, - .remove = fotg2_ehci_remove, - .driver.name = DRV_NAME, -}; |