mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-07 03:36:16 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* drivers/usb/gadget/dwc2_udc_otg.c
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* Designware DWC2 on-chip full/high speed USB OTG 2.0 device controllers
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*
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* Copyright (C) 2008 for Samsung Electronics
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*
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* BSP Support for Samsung's UDC driver
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* available at:
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* git://git.kernel.org/pub/scm/linux/kernel/git/kki_ap/linux-2.6-samsung.git
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*
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* State machine bugfixes:
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* Marek Szyprowski <m.szyprowski@samsung.com>
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*
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* Ported to u-boot:
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* Marek Szyprowski <m.szyprowski@samsung.com>
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* Lukasz Majewski <l.majewski@samsumg.com>
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*/
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#include <common.h>
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#include <linux/errno.h>
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#include <linux/list.h>
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#include <malloc.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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#include <asm/byteorder.h>
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#include <asm/unaligned.h>
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#include <asm/io.h>
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#include <asm/mach-types.h>
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#include "dwc2_udc_otg_regs.h"
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#include "dwc2_udc_otg_priv.h"
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#include <usb/lin_gadget_compat.h>
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#include <usb/dwc2_udc.h>
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void otg_phy_init(struct dwc2_udc *dev)
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{
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unsigned int usb_phy_ctrl = dev->pdata->usb_phy_ctrl;
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struct dwc2_usbotg_phy *phy =
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(struct dwc2_usbotg_phy *)dev->pdata->regs_phy;
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dev->pdata->phy_control(1);
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/* USB PHY0 Enable */
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printf("USB PHY0 Enable\n");
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/* Enable PHY */
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writel(readl(usb_phy_ctrl) | USB_PHY_CTRL_EN0, usb_phy_ctrl);
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if (dev->pdata->usb_flags == PHY0_SLEEP) /* C210 Universal */
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writel((readl(&phy->phypwr)
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&~(PHY_0_SLEEP | OTG_DISABLE_0 | ANALOG_PWRDOWN)
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&~FORCE_SUSPEND_0), &phy->phypwr);
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else /* C110 GONI */
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writel((readl(&phy->phypwr) &~(OTG_DISABLE_0 | ANALOG_PWRDOWN)
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&~FORCE_SUSPEND_0), &phy->phypwr);
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if (s5p_cpu_id == 0x4412)
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writel((readl(&phy->phyclk) & ~(EXYNOS4X12_ID_PULLUP0 |
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EXYNOS4X12_COMMON_ON_N0)) | EXYNOS4X12_CLK_SEL_24MHZ,
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&phy->phyclk); /* PLL 24Mhz */
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else
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writel((readl(&phy->phyclk) & ~(ID_PULLUP0 | COMMON_ON_N0)) |
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CLK_SEL_24MHZ, &phy->phyclk); /* PLL 24Mhz */
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writel((readl(&phy->rstcon) &~(LINK_SW_RST | PHYLNK_SW_RST))
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| PHY_SW_RST0, &phy->rstcon);
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udelay(10);
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writel(readl(&phy->rstcon)
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&~(PHY_SW_RST0 | LINK_SW_RST | PHYLNK_SW_RST), &phy->rstcon);
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udelay(10);
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}
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void otg_phy_off(struct dwc2_udc *dev)
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{
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unsigned int usb_phy_ctrl = dev->pdata->usb_phy_ctrl;
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struct dwc2_usbotg_phy *phy =
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(struct dwc2_usbotg_phy *)dev->pdata->regs_phy;
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/* reset controller just in case */
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writel(PHY_SW_RST0, &phy->rstcon);
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udelay(20);
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writel(readl(&phy->phypwr) &~PHY_SW_RST0, &phy->rstcon);
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udelay(20);
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writel(readl(&phy->phypwr) | OTG_DISABLE_0 | ANALOG_PWRDOWN
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| FORCE_SUSPEND_0, &phy->phypwr);
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writel(readl(usb_phy_ctrl) &~USB_PHY_CTRL_EN0, usb_phy_ctrl);
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writel((readl(&phy->phyclk) & ~(ID_PULLUP0 | COMMON_ON_N0)),
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&phy->phyclk);
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udelay(10000);
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dev->pdata->phy_control(0);
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}
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