765 lines
17 KiB
C
Executable File
765 lines
17 KiB
C
Executable File
/*
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* (C) Copyright 2007-2013
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Jerry Wang <wangflord@allwinnertech.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <pmu.h>
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#include <asm/arch/timer.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/intc.h>
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#include <asm/io.h>
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#include "sunxi_usb_register.h"
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struct timer_list timer_for_usb;
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static int usb_working = 0;
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static unsigned int usb_get_bus_interrupt_status(void)
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{
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return readl(SUNXI_USBOTG_BASE + USB_bINTRUSB_OFF) & 0xff;
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_clear_bus_interrupt_status(unsigned int bm)
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{
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writel(bm&0xff, SUNXI_USBOTG_BASE + USB_bINTRUSB_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_drive_vbus(int vbus, int index)
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{
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unsigned int temp;
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//Set PIOH14/15/16 to Output
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if(index == 0)
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{
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temp = readl(0x01c20800+0x100);
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temp &= ~(0x7<<24);
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temp |= (0x1<<24);
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writel(temp, 0x01c20800+0x100);
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if(vbus)
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{
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temp = readl(0x01c20800+0x10c);
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temp |= (0x1<<14);
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writel(temp, 0x01c20800+0x10c);
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}
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else
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{
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temp = readl(0x01c20800+0x10c);
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temp &= ~(0x1<<14);
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writel(temp, 0x01c20800+0x10c);
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}
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}
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_force_id(int id)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_wISCR_OFF);
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temp |= (1 << 15);
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if(id)
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{
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temp |= (1 << 14);
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}
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else
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{
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temp &= ~(1 << 14);
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}
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writel(temp, SUNXI_USBOTG_BASE + USB_wISCR_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_high_speed_set(int on_off)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_bPOWER_OFF);
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if(on_off)
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{
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temp |= (0x1<<5);
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}
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else
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{
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temp &= ~(0x1<<5);
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}
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writel(temp, SUNXI_USBOTG_BASE + USB_bPOWER_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_suspendm_enable(void)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_bPOWER_OFF);
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temp |= (0x1<<0);
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writel(temp, SUNXI_USBOTG_BASE + USB_bPOWER_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_vbus_src(int src)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_wISCR_OFF);
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temp &= ~(0x3<<10);
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temp |= ((src&0x03)<<10);
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writel(temp, SUNXI_USBOTG_BASE + USB_wISCR_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_release_vbus(void)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_wISCR_OFF);
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temp &= ~(0x3<<12);
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writel(temp, SUNXI_USBOTG_BASE + USB_wISCR_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_force_vbus(int vbus)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_wISCR_OFF);
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temp |= (1 << 13);
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if(vbus)
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{
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temp |= (1 << 12);
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}
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else
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{
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temp &= ~(1 << 12);
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}
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writel(temp, SUNXI_USBOTG_BASE + USB_wISCR_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_select_ep(int ep_no)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_GCS_OFFSET);
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temp &= ~(0xff << 16);
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writel(ep_no | temp, SUNXI_USBOTG_BASE + USB_GCS_OFFSET);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_ep0_flush_fifo(void)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_hTXMAXP_OFF);
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temp |= (0x1<<24);
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writel(temp, SUNXI_USBOTG_BASE + USB_hTXMAXP_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_clear_bus_interrupt_enable(int bm)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_bINTRUSBE_OFF);
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temp &= ~(bm&0xff);
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writel(temp, SUNXI_USBOTG_BASE + USB_bINTRUSBE_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_set_bus_interrupt_enable(int bm)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_bINTRUSBE_OFF);
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temp |= (bm&0xff);
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writel(temp, SUNXI_USBOTG_BASE + USB_bINTRUSBE_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_soft_connect(void)
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{
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uint temp;
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temp = readl(SUNXI_USBOTG_BASE + USB_bPOWER_OFF);
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temp |= (0x1<<6);
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writel(temp, SUNXI_USBOTG_BASE + USB_bPOWER_OFF);
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_clock_init(void)
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{
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#ifdef CONFIG_ARCH_SUN7I
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__u32 temp;
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/* AHB gating */
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temp = *(volatile unsigned int *)(0x1c20000 + 0x60);
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temp |= 0x01;
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*(volatile unsigned int *)(0x1c20000 + 0x60) = temp;
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__msdelay(1);
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/* phy0/1/2 gating */
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temp = *(volatile unsigned int *)(0x1c20000 + 0xcc);
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temp |= 0x01<<8;
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*(volatile unsigned int *)(0x1c20000 + 0xcc) = temp;
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__msdelay(1);
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/* usb phy0 reset control*/
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temp = *(volatile unsigned int *)(0x1c20000 + 0xcc);
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temp |= 0x01;
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*(volatile unsigned int *)(0x1c20000 + 0xcc) = temp;
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__msdelay(1);
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return;
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#endif
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u32 ccmu_base = 0x1c20000;
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u32 reg_value = 0;
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u32 offset_ahb = 0x60;
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u32 offset_ahb_rst = 0x2c0;
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u32 offet_phy = 0xcc;
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/* AHB gating */
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reg_value = readl(ccmu_base + offset_ahb);
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reg_value |= (1 << 24);
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writel(reg_value, (ccmu_base + offset_ahb));
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/* AHB reset */
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reg_value = readl(ccmu_base + offset_ahb_rst);
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reg_value |= (1 << 24);
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writel(reg_value, (ccmu_base + offset_ahb_rst));
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__msdelay(1);
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/* phy gating */
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reg_value = readl(ccmu_base + offet_phy);
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reg_value |= (1 << 8);
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writel(reg_value, (ccmu_base + offet_phy));
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/* phy reset */
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reg_value = readl(ccmu_base + offet_phy);
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reg_value |= (1 << 0);
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writel(reg_value, (ccmu_base + offet_phy));
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__msdelay(1);
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return;
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_clock_exit(void)
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{
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#ifdef CONFIG_ARCH_SUN7I
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__u32 temp;
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/* AHB gating */
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temp = *(volatile unsigned int *)(0x1c20000 + 0x60);
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temp &= ~0x01;
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*(volatile unsigned int *)(0x1c20000 + 0x60) = temp;
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__msdelay(1);
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/* phy0/1/2 gating */
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temp = *(volatile unsigned int *)(0x1c20000 + 0xcc);
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temp &= ~(0x01<<8);
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*(volatile unsigned int *)(0x1c20000 + 0xcc) = temp;
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__msdelay(1);
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/* usb phy0 reset control*/
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temp = *(volatile unsigned int *)(0x1c20000 + 0xcc);
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temp &= ~0x01;
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*(volatile unsigned int *)(0x1c20000 + 0xcc) = temp;
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__msdelay(1);
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return;
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#endif
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u32 ccmu_base = 0x1c20000;
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u32 reg_value = 0;
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u32 offset_ahb = 0x60;
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u32 offset_ahb_rst = 0x2c0;
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u32 offet_phy = 0xcc;
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/* AHB gating */
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reg_value = readl(ccmu_base + offset_ahb);
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reg_value &= ~(1 << 24);
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writel(reg_value, (ccmu_base + offset_ahb));
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/* AHB reset */
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reg_value = readl(ccmu_base + offset_ahb_rst);
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reg_value &= ~(1 << 24);
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writel(reg_value, (ccmu_base + offset_ahb_rst));
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__msdelay(1);
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/* phy gating */
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reg_value = readl(ccmu_base + offet_phy);
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reg_value &= ~(1 << 8);
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writel(reg_value, (ccmu_base + offet_phy));
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/* phy reset */
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reg_value = readl(ccmu_base + offet_phy);
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reg_value &= ~(1 << 0);
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writel(reg_value, (ccmu_base + offet_phy));
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__msdelay(1);
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return;
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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static void usb_init(void)
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{
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usb_drive_vbus(0, 0);
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usb_force_id(1);
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usb_high_speed_set(1);
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usb_suspendm_enable();
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usb_vbus_src(0x1);
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usb_release_vbus();
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usb_force_vbus(1);
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usb_select_ep(0);
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usb_ep0_flush_fifo();
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debug("USB Device!!\n");
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usb_clear_bus_interrupt_enable(0xff);
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usb_set_bus_interrupt_enable(0xff);
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//usb_set_eptx_interrupt_enable(0x3f);
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//usb_set_eprx_interrupt_enable(0x3e);
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return;
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}
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/*
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************************************************************************************************************
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*
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* function
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||
*
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||
* name :
|
||
*
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||
* parmeters :
|
||
*
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||
* return :
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||
*
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||
* note :
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*
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*
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************************************************************************************************************
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*/
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static void timer_test_usbdc(void *p_arg)
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{
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usb_clock_exit();
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irq_disable(AW_IRQ_USB_OTG);
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usb_working = 0;
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//<2F><EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD>
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tick_printf("timer irq ,set dc\n");
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axp_set_vbus_limit_dc();
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return ;
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}
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/*
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************************************************************************************************************
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*
|
||
* function
|
||
*
|
||
* name :
|
||
*
|
||
* parmeters :
|
||
*
|
||
* return :
|
||
*
|
||
* note :
|
||
*
|
||
*
|
||
************************************************************************************************************
|
||
*/
|
||
static void usb_detect_irq_handler(void *p_arg)
|
||
{
|
||
uint temp;
|
||
|
||
temp = usb_get_bus_interrupt_status();
|
||
usb_clear_bus_interrupt_status(temp);
|
||
|
||
debug("usb irq %x\n", temp);
|
||
tick_printf("usb irq %x\n", temp);
|
||
|
||
if(temp & 0x08)
|
||
{
|
||
usb_clock_exit();
|
||
irq_disable(AW_IRQ_USB_OTG);
|
||
del_timer(&timer_for_usb);
|
||
usb_working = 0;
|
||
|
||
//<2F><><EFBFBD><EFBFBD>usb<73><62><EFBFBD><EFBFBD>
|
||
tick_printf("usb irq ,set pc\n");
|
||
axp_set_vbus_limit_pc();
|
||
}
|
||
|
||
return;
|
||
}
|
||
/*
|
||
************************************************************************************************************
|
||
*
|
||
* function
|
||
*
|
||
* name :
|
||
*
|
||
* parmeters :
|
||
*
|
||
* return :
|
||
*
|
||
* note :
|
||
*
|
||
*
|
||
************************************************************************************************************
|
||
*/
|
||
int usb_detect_enter(void)
|
||
{
|
||
debug("usb start detect\n");
|
||
if(!usb_working)
|
||
{
|
||
tick_printf("usb enter detect\n");
|
||
usb_working = 1;
|
||
usb_clock_init();
|
||
|
||
|
||
#ifdef CONFIG_ARCH_SUN7I
|
||
timer_for_usb.expires = 2000;
|
||
#else
|
||
timer_for_usb.expires = BOOT_USB_DETECT_DELAY_TIME;
|
||
#endif
|
||
|
||
timer_for_usb.function = timer_test_usbdc;
|
||
timer_for_usb.data = 0;
|
||
add_timer(&timer_for_usb);
|
||
|
||
irq_install_handler(AW_IRQ_USB_OTG, usb_detect_irq_handler, 0);
|
||
irq_enable(AW_IRQ_USB_OTG);
|
||
usb_init();
|
||
usb_soft_connect();
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
/*
|
||
************************************************************************************************************
|
||
*
|
||
* function
|
||
*
|
||
* name :
|
||
*
|
||
* parmeters :
|
||
*
|
||
* return :
|
||
*
|
||
* note :
|
||
*
|
||
*
|
||
************************************************************************************************************
|
||
*/
|
||
int usb_detect_exit(void)
|
||
{
|
||
tick_printf("usb exit detect\n");
|
||
usb_working = 0;
|
||
usb_clock_exit();
|
||
irq_disable(AW_IRQ_USB_OTG);
|
||
del_timer(&timer_for_usb);
|
||
|
||
return 0;
|
||
}
|
||
|
||
/*
|
||
************************************************************************************************************
|
||
*
|
||
* function
|
||
*
|
||
* name :
|
||
*
|
||
* parmeters :
|
||
*
|
||
* return :
|
||
*
|
||
* note :
|
||
*
|
||
*
|
||
************************************************************************************************************
|
||
*/
|
||
void usb_detect_for_charge(int detect_time)
|
||
{
|
||
usb_detect_enter();
|
||
__msdelay(detect_time);
|
||
usb_detect_exit();
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|