[PATCH 4/7] mx28: add usb host phy functions
Felipe Balbi
balbi at ti.com
Wed Jul 20 07:12:58 EDT 2011
Hi,
On Wed, Jul 20, 2011 at 07:08:23PM +0800, Tony Lin wrote:
> add usb phy register definitions and functions
> usb host driver will use these functions to initialize
> usb phy and change phy working mode
>
> Signed-off-by: Tony Lin <tony.lin at freescale.com>
I don't like this patch...
> ---
> arch/arm/mach-mxs/Kconfig | 1 +
> arch/arm/mach-mxs/Makefile | 1 +
> arch/arm/mach-mxs/regs-usbphy-mx28.h | 323 ++++++++++++++++++++++++++++++++++
> arch/arm/mach-mxs/usb_h1.c | 230 ++++++++++++++++++++++++
there's no point in keeping this under arch/arm/
> 4 files changed, 555 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
> index 4cd0231..1c4264f 100644
> --- a/arch/arm/mach-mxs/Kconfig
> +++ b/arch/arm/mach-mxs/Kconfig
> @@ -49,6 +49,7 @@ config MACH_MX28EVK
> select MXS_HAVE_PLATFORM_MXS_MMC
> select MXS_HAVE_PLATFORM_MXSFB
> select MXS_OCOTP
> + select USB_ARCH_HAS_EHCI
> help
> Include support for MX28EVK platform. This includes specific
> configurations for the board and its peripherals.
> diff --git a/arch/arm/mach-mxs/Makefile b/arch/arm/mach-mxs/Makefile
> index 6c38262..48fc2f5 100644
> --- a/arch/arm/mach-mxs/Makefile
> +++ b/arch/arm/mach-mxs/Makefile
> @@ -12,5 +12,6 @@ obj-$(CONFIG_MACH_MX23EVK) += mach-mx23evk.o
> obj-$(CONFIG_MACH_MX28EVK) += mach-mx28evk.o
> obj-$(CONFIG_MODULE_TX28) += module-tx28.o
> obj-$(CONFIG_MACH_TX28) += mach-tx28.o
> +obj-$(CONFIG_USB_EHCI_MXC) += usb_h1.o
>
> obj-y += devices/
> diff --git a/arch/arm/mach-mxs/regs-usbphy-mx28.h b/arch/arm/mach-mxs/regs-usbphy-mx28.h
> new file mode 100644
> index 0000000..a367927
> --- /dev/null
> +++ b/arch/arm/mach-mxs/regs-usbphy-mx28.h
> @@ -0,0 +1,323 @@
> +/*
> + * Freescale USBPHY Register Definitions
> + *
> + * Copyright 2008-2011 Freescale Semiconductor, Inc. All Rights Reserved.
> + *
> + * 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.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
> + *
> + * This file is created by xml file. Don't Edit it.
> + *
> + * Xml Revision: 1.52
> + * Template revision: 26195
> + */
> +
> +#ifndef __ARCH_ARM___USBPHY_H
> +#define __ARCH_ARM___USBPHY_H
> +
> +
> +#define HW_USBPHY_PWD (0x00000000)
> +#define HW_USBPHY_PWD_SET (0x00000004)
> +#define HW_USBPHY_PWD_CLR (0x00000008)
> +#define HW_USBPHY_PWD_TOG (0x0000000c)
> +
> +#define BP_USBPHY_PWD_RSVD2 21
> +#define BM_USBPHY_PWD_RSVD2 0xFFE00000
> +#define BF_USBPHY_PWD_RSVD2(v) \
> + (((v) << 21) & BM_USBPHY_PWD_RSVD2)
> +#define BM_USBPHY_PWD_RXPWDRX 0x00100000
> +#define BM_USBPHY_PWD_RXPWDDIFF 0x00080000
> +#define BM_USBPHY_PWD_RXPWD1PT1 0x00040000
> +#define BM_USBPHY_PWD_RXPWDENV 0x00020000
> +#define BP_USBPHY_PWD_RSVD1 13
> +#define BM_USBPHY_PWD_RSVD1 0x0001E000
> +#define BF_USBPHY_PWD_RSVD1(v) \
> + (((v) << 13) & BM_USBPHY_PWD_RSVD1)
> +#define BM_USBPHY_PWD_TXPWDV2I 0x00001000
> +#define BM_USBPHY_PWD_TXPWDIBIAS 0x00000800
> +#define BM_USBPHY_PWD_TXPWDFS 0x00000400
> +#define BP_USBPHY_PWD_RSVD0 0
> +#define BM_USBPHY_PWD_RSVD0 0x000003FF
> +#define BF_USBPHY_PWD_RSVD0(v) \
> + (((v) << 0) & BM_USBPHY_PWD_RSVD0)
> +
> +#define HW_USBPHY_TX (0x00000010)
> +#define HW_USBPHY_TX_SET (0x00000014)
> +#define HW_USBPHY_TX_CLR (0x00000018)
> +#define HW_USBPHY_TX_TOG (0x0000001c)
> +
> +#define BP_USBPHY_TX_RSVD5 29
> +#define BM_USBPHY_TX_RSVD5 0xE0000000
> +#define BF_USBPHY_TX_RSVD5(v) \
> + (((v) << 29) & BM_USBPHY_TX_RSVD5)
> +#define BP_USBPHY_TX_USBPHY_TX_EDGECTRL 26
> +#define BM_USBPHY_TX_USBPHY_TX_EDGECTRL 0x1C000000
> +#define BF_USBPHY_TX_USBPHY_TX_EDGECTRL(v) \
> + (((v) << 26) & BM_USBPHY_TX_USBPHY_TX_EDGECTRL)
> +#define BM_USBPHY_TX_USBPHY_TX_SYNC_INVERT 0x02000000
> +#define BM_USBPHY_TX_USBPHY_TX_SYNC_MUX 0x01000000
> +#define BP_USBPHY_TX_RSVD4 22
> +#define BM_USBPHY_TX_RSVD4 0x00C00000
> +#define BF_USBPHY_TX_RSVD4(v) \
> + (((v) << 22) & BM_USBPHY_TX_RSVD4)
> +#define BM_USBPHY_TX_TXENCAL45DP 0x00200000
> +#define BM_USBPHY_TX_RSVD3 0x00100000
> +#define BP_USBPHY_TX_TXCAL45DP 16
> +#define BM_USBPHY_TX_TXCAL45DP 0x000F0000
> +#define BF_USBPHY_TX_TXCAL45DP(v) \
> + (((v) << 16) & BM_USBPHY_TX_TXCAL45DP)
> +#define BP_USBPHY_TX_RSVD2 14
> +#define BM_USBPHY_TX_RSVD2 0x0000C000
> +#define BF_USBPHY_TX_RSVD2(v) \
> + (((v) << 14) & BM_USBPHY_TX_RSVD2)
> +#define BM_USBPHY_TX_TXENCAL45DN 0x00002000
> +#define BM_USBPHY_TX_RSVD1 0x00001000
> +#define BP_USBPHY_TX_TXCAL45DN 8
> +#define BM_USBPHY_TX_TXCAL45DN 0x00000F00
> +#define BF_USBPHY_TX_TXCAL45DN(v) \
> + (((v) << 8) & BM_USBPHY_TX_TXCAL45DN)
> +#define BP_USBPHY_TX_RSVD0 4
> +#define BM_USBPHY_TX_RSVD0 0x000000F0
> +#define BF_USBPHY_TX_RSVD0(v) \
> + (((v) << 4) & BM_USBPHY_TX_RSVD0)
> +#define BP_USBPHY_TX_D_CAL 0
> +#define BM_USBPHY_TX_D_CAL 0x0000000F
> +#define BF_USBPHY_TX_D_CAL(v) \
> + (((v) << 0) & BM_USBPHY_TX_D_CAL)
> +
> +#define HW_USBPHY_RX (0x00000020)
> +#define HW_USBPHY_RX_SET (0x00000024)
> +#define HW_USBPHY_RX_CLR (0x00000028)
> +#define HW_USBPHY_RX_TOG (0x0000002c)
> +
> +#define BP_USBPHY_RX_RSVD2 23
> +#define BM_USBPHY_RX_RSVD2 0xFF800000
> +#define BF_USBPHY_RX_RSVD2(v) \
> + (((v) << 23) & BM_USBPHY_RX_RSVD2)
> +#define BM_USBPHY_RX_RXDBYPASS 0x00400000
> +#define BP_USBPHY_RX_RSVD1 7
> +#define BM_USBPHY_RX_RSVD1 0x003FFF80
> +#define BF_USBPHY_RX_RSVD1(v) \
> + (((v) << 7) & BM_USBPHY_RX_RSVD1)
> +#define BP_USBPHY_RX_DISCONADJ 4
> +#define BM_USBPHY_RX_DISCONADJ 0x00000070
> +#define BF_USBPHY_RX_DISCONADJ(v) \
> + (((v) << 4) & BM_USBPHY_RX_DISCONADJ)
> +#define BM_USBPHY_RX_RSVD0 0x00000008
> +#define BP_USBPHY_RX_ENVADJ 0
> +#define BM_USBPHY_RX_ENVADJ 0x00000007
> +#define BF_USBPHY_RX_ENVADJ(v) \
> + (((v) << 0) & BM_USBPHY_RX_ENVADJ)
> +
> +#define HW_USBPHY_CTRL (0x00000030)
> +#define HW_USBPHY_CTRL_SET (0x00000034)
> +#define HW_USBPHY_CTRL_CLR (0x00000038)
> +#define HW_USBPHY_CTRL_TOG (0x0000003c)
> +
> +#define BM_USBPHY_CTRL_SFTRST 0x80000000
> +#define BM_USBPHY_CTRL_CLKGATE 0x40000000
> +#define BM_USBPHY_CTRL_UTMI_SUSPENDM 0x20000000
> +#define BM_USBPHY_CTRL_HOST_FORCE_LS_SE0 0x10000000
> +#define BM_USBPHY_CTRL_RSVD3 0x08000000
> +#define BM_USBPHY_CTRL_ENAUTOSET_USBCLKS 0x04000000
> +#define BM_USBPHY_CTRL_ENAUTOCLR_USBCLKGATE 0x02000000
> +#define BM_USBPHY_CTRL_FSDLL_RST_EN 0x01000000
> +#define BM_USBPHY_CTRL_ENVBUSCHG_WKUP 0x00800000
> +#define BM_USBPHY_CTRL_ENIDCHG_WKUP 0x00400000
> +#define BM_USBPHY_CTRL_ENDPDMCHG_WKUP 0x00200000
> +#define BM_USBPHY_CTRL_ENAUTOCLR_PHY_PWD 0x00100000
> +#define BM_USBPHY_CTRL_ENAUTOCLR_CLKGATE 0x00080000
> +#define BM_USBPHY_CTRL_ENAUTO_PWRON_PLL 0x00040000
> +#define BM_USBPHY_CTRL_WAKEUP_IRQ 0x00020000
> +#define BM_USBPHY_CTRL_ENIRQWAKEUP 0x00010000
> +#define BM_USBPHY_CTRL_ENUTMILEVEL3 0x00008000
> +#define BM_USBPHY_CTRL_ENUTMILEVEL2 0x00004000
> +#define BM_USBPHY_CTRL_DATA_ON_LRADC 0x00002000
> +#define BM_USBPHY_CTRL_DEVPLUGIN_IRQ 0x00001000
> +#define BM_USBPHY_CTRL_ENIRQDEVPLUGIN 0x00000800
> +#define BM_USBPHY_CTRL_RESUME_IRQ 0x00000400
> +#define BM_USBPHY_CTRL_ENIRQRESUMEDETECT 0x00000200
> +#define BM_USBPHY_CTRL_RESUMEIRQSTICKY 0x00000100
> +#define BM_USBPHY_CTRL_ENOTGIDDETECT 0x00000080
> +#define BM_USBPHY_CTRL_RSVD1 0x00000040
> +#define BM_USBPHY_CTRL_DEVPLUGIN_POLARITY 0x00000020
> +#define BM_USBPHY_CTRL_ENDEVPLUGINDETECT 0x00000010
> +#define BM_USBPHY_CTRL_HOSTDISCONDETECT_IRQ 0x00000008
> +#define BM_USBPHY_CTRL_ENIRQHOSTDISCON 0x00000004
> +#define BM_USBPHY_CTRL_ENHOSTDISCONDETECT 0x00000002
> +#define BM_USBPHY_CTRL_RSVD0 0x00000001
> +
> +#define HW_USBPHY_STATUS (0x00000040)
> +
> +#define BP_USBPHY_STATUS_RSVD4 11
> +#define BM_USBPHY_STATUS_RSVD4 0xFFFFF800
> +#define BF_USBPHY_STATUS_RSVD4(v) \
> + (((v) << 11) & BM_USBPHY_STATUS_RSVD4)
> +#define BM_USBPHY_STATUS_RESUME_STATUS 0x00000400
> +#define BM_USBPHY_STATUS_RSVD3 0x00000200
> +#define BM_USBPHY_STATUS_OTGID_STATUS 0x00000100
> +#define BM_USBPHY_STATUS_RSVD2 0x00000080
> +#define BM_USBPHY_STATUS_DEVPLUGIN_STATUS 0x00000040
> +#define BP_USBPHY_STATUS_RSVD1 4
> +#define BM_USBPHY_STATUS_RSVD1 0x00000030
> +#define BF_USBPHY_STATUS_RSVD1(v) \
> + (((v) << 4) & BM_USBPHY_STATUS_RSVD1)
> +#define BM_USBPHY_STATUS_HOSTDISCONDETECT_STATUS 0x00000008
> +#define BP_USBPHY_STATUS_RSVD0 0
> +#define BM_USBPHY_STATUS_RSVD0 0x00000007
> +#define BF_USBPHY_STATUS_RSVD0(v) \
> + (((v) << 0) & BM_USBPHY_STATUS_RSVD0)
> +
> +#define HW_USBPHY_DEBUG (0x00000050)
> +#define HW_USBPHY_DEBUG_SET (0x00000054)
> +#define HW_USBPHY_DEBUG_CLR (0x00000058)
> +#define HW_USBPHY_DEBUG_TOG (0x0000005c)
> +
> +#define BM_USBPHY_DEBUG_RSVD3 0x80000000
> +#define BM_USBPHY_DEBUG_CLKGATE 0x40000000
> +#define BM_USBPHY_DEBUG_HOST_RESUME_DEBUG 0x20000000
> +#define BP_USBPHY_DEBUG_SQUELCHRESETLENGTH 25
> +#define BM_USBPHY_DEBUG_SQUELCHRESETLENGTH 0x1E000000
> +#define BF_USBPHY_DEBUG_SQUELCHRESETLENGTH(v) \
> + (((v) << 25) & BM_USBPHY_DEBUG_SQUELCHRESETLENGTH)
> +#define BM_USBPHY_DEBUG_ENSQUELCHRESET 0x01000000
> +#define BP_USBPHY_DEBUG_RSVD2 21
> +#define BM_USBPHY_DEBUG_RSVD2 0x00E00000
> +#define BF_USBPHY_DEBUG_RSVD2(v) \
> + (((v) << 21) & BM_USBPHY_DEBUG_RSVD2)
> +#define BP_USBPHY_DEBUG_SQUELCHRESETCOUNT 16
> +#define BM_USBPHY_DEBUG_SQUELCHRESETCOUNT 0x001F0000
> +#define BF_USBPHY_DEBUG_SQUELCHRESETCOUNT(v) \
> + (((v) << 16) & BM_USBPHY_DEBUG_SQUELCHRESETCOUNT)
> +#define BP_USBPHY_DEBUG_RSVD1 13
> +#define BM_USBPHY_DEBUG_RSVD1 0x0000E000
> +#define BF_USBPHY_DEBUG_RSVD1(v) \
> + (((v) << 13) & BM_USBPHY_DEBUG_RSVD1)
> +#define BM_USBPHY_DEBUG_ENTX2RXCOUNT 0x00001000
> +#define BP_USBPHY_DEBUG_TX2RXCOUNT 8
> +#define BM_USBPHY_DEBUG_TX2RXCOUNT 0x00000F00
> +#define BF_USBPHY_DEBUG_TX2RXCOUNT(v) \
> + (((v) << 8) & BM_USBPHY_DEBUG_TX2RXCOUNT)
> +#define BP_USBPHY_DEBUG_RSVD0 6
> +#define BM_USBPHY_DEBUG_RSVD0 0x000000C0
> +#define BF_USBPHY_DEBUG_RSVD0(v) \
> + (((v) << 6) & BM_USBPHY_DEBUG_RSVD0)
> +#define BP_USBPHY_DEBUG_ENHSTPULLDOWN 4
> +#define BM_USBPHY_DEBUG_ENHSTPULLDOWN 0x00000030
> +#define BF_USBPHY_DEBUG_ENHSTPULLDOWN(v) \
> + (((v) << 4) & BM_USBPHY_DEBUG_ENHSTPULLDOWN)
> +#define BP_USBPHY_DEBUG_HSTPULLDOWN 2
> +#define BM_USBPHY_DEBUG_HSTPULLDOWN 0x0000000C
> +#define BF_USBPHY_DEBUG_HSTPULLDOWN(v) \
> + (((v) << 2) & BM_USBPHY_DEBUG_HSTPULLDOWN)
> +#define BM_USBPHY_DEBUG_DEBUG_INTERFACE_HOLD 0x00000002
> +#define BM_USBPHY_DEBUG_OTGIDPIOLOCK 0x00000001
> +
> +#define HW_USBPHY_DEBUG0_STATUS (0x00000060)
> +
> +#define BP_USBPHY_DEBUG0_STATUS_SQUELCH_COUNT 26
> +#define BM_USBPHY_DEBUG0_STATUS_SQUELCH_COUNT 0xFC000000
> +#define BF_USBPHY_DEBUG0_STATUS_SQUELCH_COUNT(v) \
> + (((v) << 26) & BM_USBPHY_DEBUG0_STATUS_SQUELCH_COUNT)
> +#define BP_USBPHY_DEBUG0_STATUS_UTMI_RXERROR_FAIL_COUNT 16
> +#define BM_USBPHY_DEBUG0_STATUS_UTMI_RXERROR_FAIL_COUNT 0x03FF0000
> +#define BF_USBPHY_DEBUG0_STATUS_UTMI_RXERROR_FAIL_COUNT(v) \
> + (((v) << 16) & BM_USBPHY_DEBUG0_STATUS_UTMI_RXERROR_FAIL_COUNT)
> +#define BP_USBPHY_DEBUG0_STATUS_LOOP_BACK_FAIL_COUNT 0
> +#define BM_USBPHY_DEBUG0_STATUS_LOOP_BACK_FAIL_COUNT 0x0000FFFF
> +#define BF_USBPHY_DEBUG0_STATUS_LOOP_BACK_FAIL_COUNT(v) \
> + (((v) << 0) & BM_USBPHY_DEBUG0_STATUS_LOOP_BACK_FAIL_COUNT)
> +
> +#define HW_USBPHY_DEBUG1 (0x00000070)
> +#define HW_USBPHY_DEBUG1_SET (0x00000074)
> +#define HW_USBPHY_DEBUG1_CLR (0x00000078)
> +#define HW_USBPHY_DEBUG1_TOG (0x0000007c)
> +
> +#define BP_USBPHY_DEBUG1_RSVD1 15
> +#define BM_USBPHY_DEBUG1_RSVD1 0xFFFF8000
> +#define BF_USBPHY_DEBUG1_RSVD1(v) \
> + (((v) << 15) & BM_USBPHY_DEBUG1_RSVD1)
> +#define BP_USBPHY_DEBUG1_ENTAILADJVD 13
> +#define BM_USBPHY_DEBUG1_ENTAILADJVD 0x00006000
> +#define BF_USBPHY_DEBUG1_ENTAILADJVD(v) \
> + (((v) << 13) & BM_USBPHY_DEBUG1_ENTAILADJVD)
> +#define BM_USBPHY_DEBUG1_ENTX2TX 0x00001000
> +#define BP_USBPHY_DEBUG1_RSVD0 4
> +#define BM_USBPHY_DEBUG1_RSVD0 0x00000FF0
> +#define BF_USBPHY_DEBUG1_RSVD0(v) \
> + (((v) << 4) & BM_USBPHY_DEBUG1_RSVD0)
> +#define BP_USBPHY_DEBUG1_DBG_ADDRESS 0
> +#define BM_USBPHY_DEBUG1_DBG_ADDRESS 0x0000000F
> +#define BF_USBPHY_DEBUG1_DBG_ADDRESS(v) \
> + (((v) << 0) & BM_USBPHY_DEBUG1_DBG_ADDRESS)
> +
> +#define HW_USBPHY_VERSION (0x00000080)
> +
> +#define BP_USBPHY_VERSION_MAJOR 24
> +#define BM_USBPHY_VERSION_MAJOR 0xFF000000
> +#define BF_USBPHY_VERSION_MAJOR(v) \
> + (((v) << 24) & BM_USBPHY_VERSION_MAJOR)
> +#define BP_USBPHY_VERSION_MINOR 16
> +#define BM_USBPHY_VERSION_MINOR 0x00FF0000
> +#define BF_USBPHY_VERSION_MINOR(v) \
> + (((v) << 16) & BM_USBPHY_VERSION_MINOR)
> +#define BP_USBPHY_VERSION_STEP 0
> +#define BM_USBPHY_VERSION_STEP 0x0000FFFF
> +#define BF_USBPHY_VERSION_STEP(v) \
> + (((v) << 0) & BM_USBPHY_VERSION_STEP)
> +
> +#define HW_USBPHY_IP (0x00000090)
> +#define HW_USBPHY_IP_SET (0x00000094)
> +#define HW_USBPHY_IP_CLR (0x00000098)
> +#define HW_USBPHY_IP_TOG (0x0000009c)
> +
> +#define BP_USBPHY_IP_RSVD1 25
> +#define BM_USBPHY_IP_RSVD1 0xFE000000
> +#define BF_USBPHY_IP_RSVD1(v) \
> + (((v) << 25) & BM_USBPHY_IP_RSVD1)
> +#define BP_USBPHY_IP_DIV_SEL 23
> +#define BM_USBPHY_IP_DIV_SEL 0x01800000
> +#define BF_USBPHY_IP_DIV_SEL(v) \
> + (((v) << 23) & BM_USBPHY_IP_DIV_SEL)
> +#define BV_USBPHY_IP_DIV_SEL__DEFAULT 0x0
> +#define BV_USBPHY_IP_DIV_SEL__LOWER 0x1
> +#define BV_USBPHY_IP_DIV_SEL__LOWEST 0x2
> +#define BV_USBPHY_IP_DIV_SEL__UNDEFINED 0x3
> +#define BP_USBPHY_IP_LFR_SEL 21
> +#define BM_USBPHY_IP_LFR_SEL 0x00600000
> +#define BF_USBPHY_IP_LFR_SEL(v) \
> + (((v) << 21) & BM_USBPHY_IP_LFR_SEL)
> +#define BV_USBPHY_IP_LFR_SEL__DEFAULT 0x0
> +#define BV_USBPHY_IP_LFR_SEL__TIMES_2 0x1
> +#define BV_USBPHY_IP_LFR_SEL__TIMES_05 0x2
> +#define BV_USBPHY_IP_LFR_SEL__UNDEFINED 0x3
> +#define BP_USBPHY_IP_CP_SEL 19
> +#define BM_USBPHY_IP_CP_SEL 0x00180000
> +#define BF_USBPHY_IP_CP_SEL(v) \
> + (((v) << 19) & BM_USBPHY_IP_CP_SEL)
> +#define BV_USBPHY_IP_CP_SEL__DEFAULT 0x0
> +#define BV_USBPHY_IP_CP_SEL__TIMES_2 0x1
> +#define BV_USBPHY_IP_CP_SEL__TIMES_05 0x2
> +#define BV_USBPHY_IP_CP_SEL__UNDEFINED 0x3
> +#define BM_USBPHY_IP_TSTI_TX_DP 0x00040000
> +#define BM_USBPHY_IP_TSTI_TX_DM 0x00020000
> +#define BM_USBPHY_IP_ANALOG_TESTMODE 0x00010000
> +#define BP_USBPHY_IP_RSVD0 3
> +#define BM_USBPHY_IP_RSVD0 0x0000FFF8
> +#define BF_USBPHY_IP_RSVD0(v) \
> + (((v) << 3) & BM_USBPHY_IP_RSVD0)
> +#define BM_USBPHY_IP_EN_USB_CLKS 0x00000004
> +#define BM_USBPHY_IP_PLL_LOCKED 0x00000002
> +#define BM_USBPHY_IP_PLL_POWER 0x00000001
> +#endif /* __ARCH_ARM___USBPHY_H */
> diff --git a/arch/arm/mach-mxs/usb_h1.c b/arch/arm/mach-mxs/usb_h1.c
> new file mode 100644
> index 0000000..9ca5236
> --- /dev/null
> +++ b/arch/arm/mach-mxs/usb_h1.c
> @@ -0,0 +1,230 @@
> +/*
> + * Copyright (C) 2009-2011 Freescale Semiconductor, Inc. All Rights Reserved.
> + *
> + * 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.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, write to the Free Software Foundation, Inc.,
> + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/types.h>
> +#include <linux/clk.h>
> +#include <linux/delay.h>
> +#include <linux/platform_device.h>
> +#include <linux/io.h>
> +#include <linux/err.h>
> +#include <linux/fsl_devices.h>
> +#include <linux/gpio.h>
> +#include <asm/mach-types.h>
> +#include <asm/mach/arch.h>
> +#include <mach/irqs.h>
> +#include <mach/mx28.h>
> +#include "regs-usbphy-mx28.h"
> +
> +/* EHCI registers: */
> +#define UOG_USBCMD (0x140)/* USB command register */
> +#define UOG_PORTSC1 (0x184)/* port status and control */
> +/* x_PORTSCx */
> +#define PORTSC_PTS_MASK (3 << 30)/* parallel xcvr mask */
> +#define PORTSC_PTS_UTMI (0 << 30)/* UTMI/UTMI+ */
> +#define PORTSC_PTW (1 << 28)/* UTMI width */
> +/* USBCMD */
> +#define UCMD_RUN_STOP (1 << 0)/* controller run/stop */
> +#define UCMD_RESET (1 << 1)/* controller reset */
> +
> +#define HOSTPHY_CONNECT_STATE (1 << 3)
> +
> +static struct clk *usb_clk;
> +static struct clk *usb_phy_clk;
> +static int internal_phy_clk_already_on;
> +
> +/* The dmamask must be set for EHCI to work */
> +static u64 ehci_dmamask = ~(u32) 0;
> +static int instance_id = ~(u32) 0;
> +
> +static int fsl_platform_get_usb_conn_status(void)
> +{
> + u32 status;
> +
> + status = __raw_readl(MX28_IO_ADDRESS(MX28_USBPHY1_BASE_ADDR) + \
you should, probably, avoid using this macro and pass here ioremapped
address base. Ditto to all below.
> + HW_USBPHY_STATUS);
> + return ((status & HOSTPHY_CONNECT_STATE) == 0);
> +}
> +
> +/* enable/disable high-speed disconnect detector of phy ctrl */
> +static void fsl_platform_set_usb_phy_dis(int enable)
> +{
> + if (enable)
> + __raw_writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT,
> + MX28_IO_ADDRESS(MX28_USBPHY1_BASE_ADDR) + HW_USBPHY_CTRL_SET);
> + else
> + __raw_writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT,
> + MX28_IO_ADDRESS(MX28_USBPHY1_BASE_ADDR) + HW_USBPHY_CTRL_CLR);
> +}
> +
> +static int usb_phy_enable(struct mxc_usbh_platform_data *pdata)
> +{
> + u32 tmp;
> + void __iomem *phy_reg = MX28_IO_ADDRESS(MX28_USBPHY1_BASE_ADDR);
> + void __iomem *usb_reg = MX28_IO_ADDRESS(MX28_USBCTRL1_BASE_ADDR);
> + void __iomem *usbcmd, *phy_ctrl, *portsc;
> + /* Reset USB IP */
> + usbcmd = usb_reg + UOG_USBCMD;
> + tmp = __raw_readl(usbcmd); /* usb command */
> + tmp &= ~UCMD_RUN_STOP;
> + __raw_writel(tmp, usbcmd);
> + while (__raw_readl(usbcmd) & UCMD_RUN_STOP)
> + ;
> + tmp |= UCMD_RESET;
> + __raw_writel(tmp, usbcmd);
> + while (__raw_readl(usbcmd) & UCMD_RESET)
> + ;
> + mdelay(10);
> + /* Reset USBPHY module */
> + phy_ctrl = phy_reg + HW_USBPHY_CTRL;
> + tmp = __raw_readl(phy_ctrl);
> + tmp |= BM_USBPHY_CTRL_SFTRST;
> + __raw_writel(tmp, phy_ctrl);
> + udelay(10);
> + /* Remove CLKGATE and SFTRST */
> + tmp = __raw_readl(phy_ctrl);
> + tmp &= ~(BM_USBPHY_CTRL_CLKGATE | BM_USBPHY_CTRL_SFTRST);
> + __raw_writel(tmp, phy_ctrl);
> + udelay(10);
> + /* set UTMI xcvr */
> + /* Workaround an IC issue for ehci driver:
> + * when turn off root hub port power, EHCI set
> + * PORTSC reserved bits to be 0, but PTW with 0
> + * means 8 bits tranceiver width, here change
> + * it back to be 16 bits and do PHY diable and
> + * then enable.
> + */
> + portsc = usb_reg + UOG_PORTSC1;
> + tmp = __raw_readl(portsc);
> + tmp &= ~PORTSC_PTS_MASK;
> + tmp |= (PORTSC_PTS_UTMI | PORTSC_PTW);
> + __raw_writel(tmp, portsc);
> + /* Power up the PHY */
> + __raw_writel(0, phy_reg + HW_USBPHY_PWD);
> + return 0;
readability can be greatly improved here and on all below
> +static int __init usbh1_init(void)
> +{
> + struct platform_device *pdev;
> + int rc;
> +
> + if (!cpu_is_mx28())
> + return 0;
> +
> + pdev = platform_device_register_simple("mxc-ehci",
> + instance_id, usbh1_resources, ARRAY_SIZE(usbh1_resources));
> + if (IS_ERR(pdev)) {
> + pr_debug("can't register Host, %ld\n",
> + PTR_ERR(pdev));
> + return -EFAULT;
> + }
> +
> + pdev->dev.coherent_dma_mask = 0xffffffff;
> + pdev->dev.dma_mask = &ehci_dmamask;
> +
> + rc = platform_device_add_data(pdev, &usbh1_config,
> + sizeof(struct mxc_usbh_platform_data));
> + if (rc) {
> + platform_device_unregister(pdev);
> + return -EFAULT;
> + }
all of this can be combine in:
platform_device_register_rsndata(NULL, "mxc-ehci", instance_id,
usbh1_resources, ARRAY_SIZE(usbh1_resources), &usbh1_config,
sizeof(usbh1_config);
--
balbi
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 490 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20110720/8a32d444/attachment-0001.sig>
More information about the linux-arm-kernel
mailing list