diff options
author | Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
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committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/drivers/usb/musb/omap3.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/drivers/usb/musb/omap3.c')
-rw-r--r-- | qemu/roms/u-boot/drivers/usb/musb/omap3.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/drivers/usb/musb/omap3.c b/qemu/roms/u-boot/drivers/usb/musb/omap3.c new file mode 100644 index 000000000..97da529b4 --- /dev/null +++ b/qemu/roms/u-boot/drivers/usb/musb/omap3.c @@ -0,0 +1,145 @@ +/* + * Copyright (c) 2009 Wind River Systems, Inc. + * Tom Rix <Tom.Rix@windriver.com> + * + * This is file is based on + * repository git.gitorious.org/u-boot-omap3/mainline.git, + * branch omap3-dev-usb, file drivers/usb/host/omap3530_usb.c + * + * This is the unique part of its copyright : + * + * ------------------------------------------------------------------------ + * + * Copyright (c) 2009 Texas Instruments + * + * ------------------------------------------------------------------------ + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/omap_common.h> +#include <twl4030.h> +#include <twl6030.h> +#include "omap3.h" + +static int platform_needs_initialization = 1; + +struct musb_config musb_cfg = { + .regs = (struct musb_regs *)MENTOR_USB0_BASE, + .timeout = OMAP3_USB_TIMEOUT, + .musb_speed = 0, +}; + +/* + * OMAP3 USB OTG registers. + */ +struct omap3_otg_regs { + u32 revision; + u32 sysconfig; + u32 sysstatus; + u32 interfsel; + u32 simenable; + u32 forcestdby; +}; + +static struct omap3_otg_regs *otg; + +#define OMAP3_OTG_SYSCONFIG_SMART_STANDBY_MODE 0x2000 +#define OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE 0x1000 +#define OMAP3_OTG_SYSCONFIG_SMART_IDLE_MODE 0x0010 +#define OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE 0x0008 +#define OMAP3_OTG_SYSCONFIG_ENABLEWAKEUP 0x0004 +#define OMAP3_OTG_SYSCONFIG_SOFTRESET 0x0002 +#define OMAP3_OTG_SYSCONFIG_AUTOIDLE 0x0001 + +#define OMAP3_OTG_SYSSTATUS_RESETDONE 0x0001 + +/* OMAP4430 has an internal PHY, use it */ +#ifdef CONFIG_OMAP4430 +#define OMAP3_OTG_INTERFSEL_OMAP 0x0000 +#else +#define OMAP3_OTG_INTERFSEL_OMAP 0x0001 +#endif + +#define OMAP3_OTG_FORCESTDBY_STANDBY 0x0001 + + +#ifdef DEBUG_MUSB_OMAP3 +static void musb_db_otg_regs(void) +{ + u32 l; + l = readl(&otg->revision); + serial_printf("OTG_REVISION 0x%x\n", l); + l = readl(&otg->sysconfig); + serial_printf("OTG_SYSCONFIG 0x%x\n", l); + l = readl(&otg->sysstatus); + serial_printf("OTG_SYSSTATUS 0x%x\n", l); + l = readl(&otg->interfsel); + serial_printf("OTG_INTERFSEL 0x%x\n", l); + l = readl(&otg->forcestdby); + serial_printf("OTG_FORCESTDBY 0x%x\n", l); +} +#endif + +int musb_platform_init(void) +{ + int ret = -1; + + if (platform_needs_initialization) { + u32 stdby; + + /* + * OMAP3EVM uses ISP1504 phy and so + * twl4030 related init is not required. + */ +#ifdef CONFIG_TWL4030_USB + if (twl4030_usb_ulpi_init()) { + serial_printf("ERROR: %s Could not initialize PHY\n", + __PRETTY_FUNCTION__); + goto end; + } +#endif + +#ifdef CONFIG_TWL6030_POWER + twl6030_usb_device_settings(); +#endif + + otg = (struct omap3_otg_regs *)OMAP3_OTG_BASE; + + /* Set OTG to always be on */ + writel(OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE | + OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE, &otg->sysconfig); + + /* Set the interface */ + writel(OMAP3_OTG_INTERFSEL_OMAP, &otg->interfsel); + + /* Clear force standby */ + stdby = readl(&otg->forcestdby); + stdby &= ~OMAP3_OTG_FORCESTDBY_STANDBY; + writel(stdby, &otg->forcestdby); + +#ifdef CONFIG_OMAP3_EVM + musb_cfg.extvbus = omap3_evm_need_extvbus(); +#endif + +#ifdef CONFIG_OMAP4430 + u32 *usbotghs_control = + (u32 *)((*ctrl)->control_usbotghs_ctrl); + *usbotghs_control = 0x15; +#endif + platform_needs_initialization = 0; + } + + ret = platform_needs_initialization; + +#ifdef CONFIG_TWL4030_USB +end: +#endif + return ret; + +} + +void musb_platform_deinit(void) +{ + /* noop */ +} |