mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 18:56:15 +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>
145 lines
3.2 KiB
C
145 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2009 Wind River Systems, Inc.
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* Tom Rix <Tom.Rix@windriver.com>
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*
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* This is file is based on
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* repository git.gitorious.org/u-boot-omap3/mainline.git,
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* branch omap3-dev-usb, file drivers/usb/host/omap3530_usb.c
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*
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* This is the unique part of its copyright :
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*
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* ------------------------------------------------------------------------
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*
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* Copyright (c) 2009 Texas Instruments
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*
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* ------------------------------------------------------------------------
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*/
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#include <asm/omap_common.h>
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#include <twl4030.h>
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#include <twl6030.h>
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#include "omap3.h"
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static int platform_needs_initialization = 1;
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struct musb_config musb_cfg = {
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.regs = (struct musb_regs *)MENTOR_USB0_BASE,
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.timeout = OMAP3_USB_TIMEOUT,
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.musb_speed = 0,
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};
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/*
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* OMAP3 USB OTG registers.
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*/
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struct omap3_otg_regs {
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u32 revision;
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u32 sysconfig;
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u32 sysstatus;
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u32 interfsel;
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u32 simenable;
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u32 forcestdby;
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};
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static struct omap3_otg_regs *otg;
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#define OMAP3_OTG_SYSCONFIG_SMART_STANDBY_MODE 0x2000
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#define OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE 0x1000
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#define OMAP3_OTG_SYSCONFIG_SMART_IDLE_MODE 0x0010
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#define OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE 0x0008
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#define OMAP3_OTG_SYSCONFIG_ENABLEWAKEUP 0x0004
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#define OMAP3_OTG_SYSCONFIG_SOFTRESET 0x0002
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#define OMAP3_OTG_SYSCONFIG_AUTOIDLE 0x0001
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#define OMAP3_OTG_SYSSTATUS_RESETDONE 0x0001
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/* OMAP4430 has an internal PHY, use it */
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#ifdef CONFIG_OMAP44XX
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#define OMAP3_OTG_INTERFSEL_OMAP 0x0000
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#else
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#define OMAP3_OTG_INTERFSEL_OMAP 0x0001
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#endif
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#define OMAP3_OTG_FORCESTDBY_STANDBY 0x0001
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#ifdef DEBUG_MUSB_OMAP3
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static void musb_db_otg_regs(void)
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{
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u32 l;
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l = readl(&otg->revision);
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serial_printf("OTG_REVISION 0x%x\n", l);
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l = readl(&otg->sysconfig);
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serial_printf("OTG_SYSCONFIG 0x%x\n", l);
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l = readl(&otg->sysstatus);
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serial_printf("OTG_SYSSTATUS 0x%x\n", l);
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l = readl(&otg->interfsel);
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serial_printf("OTG_INTERFSEL 0x%x\n", l);
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l = readl(&otg->forcestdby);
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serial_printf("OTG_FORCESTDBY 0x%x\n", l);
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}
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#endif
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int musb_platform_init(void)
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{
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int ret = -1;
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if (platform_needs_initialization) {
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u32 stdby;
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/*
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* OMAP3EVM uses ISP1504 phy and so
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* twl4030 related init is not required.
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*/
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#ifdef CONFIG_TWL4030_USB
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if (twl4030_usb_ulpi_init()) {
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serial_printf("ERROR: %s Could not initialize PHY\n",
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__PRETTY_FUNCTION__);
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goto end;
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}
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#endif
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#ifdef CONFIG_TWL6030_POWER
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twl6030_usb_device_settings();
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#endif
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otg = (struct omap3_otg_regs *)OMAP3_OTG_BASE;
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/* Set OTG to always be on */
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writel(OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE |
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OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE, &otg->sysconfig);
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/* Set the interface */
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writel(OMAP3_OTG_INTERFSEL_OMAP, &otg->interfsel);
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/* Clear force standby */
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stdby = readl(&otg->forcestdby);
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stdby &= ~OMAP3_OTG_FORCESTDBY_STANDBY;
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writel(stdby, &otg->forcestdby);
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#ifdef CONFIG_TARGET_OMAP3_EVM
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musb_cfg.extvbus = omap3_evm_need_extvbus();
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#endif
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#ifdef CONFIG_OMAP44XX
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u32 *usbotghs_control =
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(u32 *)((*ctrl)->control_usbotghs_ctrl);
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*usbotghs_control = 0x15;
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#endif
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platform_needs_initialization = 0;
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}
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ret = platform_needs_initialization;
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#ifdef CONFIG_TWL4030_USB
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end:
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#endif
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return ret;
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}
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void musb_platform_deinit(void)
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{
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/* noop */
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}
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