+++ /dev/null
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/wakelock.h>
-#include <linux/workqueue.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-
-#include <mach/irqs.h>
-#include <mach/gpio.h>
-#include <mach/iomux.h>
-#include <mach/cru.h>
-#include <mach/board.h>
-
-#include "usbdev_rk.h"
-#include "dwc_otg_regs.h"
-
-#ifdef CONFIG_ARCH_RK319X
-#include "usbdev_rk3190_grf_regs.h"
-
-pGRF_UOC0_REG USBGRF_UOC0 = (pGRF_UOC0_REG)(GRF_UOC0_BASE);
-pGRF_UOC1_REG USBGRF_UOC1 = (pGRF_UOC1_REG)(GRF_UOC1_BASE);
-pGRF_HSIC_REG USBGRF_HSIC = (pGRF_HSIC_REG)(GRF_UOC2_BASE);
-pGRF_USBPHY_REG GRF_USBPHY1 = (pGRF_USBPHY_REG)(GRF_USBPHY1_CON_BASE);
-pGRF_SOC_STATUS USBGRF_STATUS = (pGRF_SOC_STATUS)(USBGRF_SOC_STATUS0);
-
-int dwc_otg_check_dpdm(void)
-{
-/*
- static uint8_t * reg_base = 0;
- volatile unsigned int * otg_dctl;
- volatile unsigned int * otg_gotgctl;
- volatile unsigned int * otg_hprt0;
- int bus_status = 0;
- unsigned int * otg_phy_con0 = (unsigned int*)(USBGRF_UOC0_CON0) ;
-
- *(unsigned int*)(RK319X_CRU_BASE+0x120) = ((7<<5)<<16)|(7<<5); // otg0 phy clkgate
- udelay(3);
- *(unsigned int*)(RK319X_CRU_BASE+0x120) = ((7<<5)<<16)|(0<<5); // otg0 phy clkgate
- dsb();
- *(unsigned int*)(RK319X_CRU_BASE+0xd4) = ((1<<5)<<16); // otg0 phy clkgate
- *(unsigned int*)(RK319X_CRU_BASE+0xe4) = ((1<<13)<<16); // otg0 hclk clkgate
- *(unsigned int*)(RK319X_CRU_BASE+0xf4) = ((3<<10)<<16); // hclk usb clkgat
-
- // exit phy suspend
- *otg_phy_con0 = ((0x01<<0)<<16);
-
- // soft connect
- if(reg_base == 0){
- reg_base = ioremap(RK319X_USBOTG20_PHYS, RK319X_USBOTG20_SIZE);
- if(!reg_base){
- bus_status = -1;
- goto out;
- }
- }
- mdelay(10);
- //printk("regbase %p 0x%x, otg_phy_con%p, 0x%x\n",
- // reg_base, *(reg_base), otg_phy_con1, *otg_phy_con1);
- otg_dctl = (unsigned int * )(reg_base+0x804);
- otg_gotgctl = (unsigned int * )(reg_base);
- otg_hprt0 = (unsigned int * )(reg_base + DWC_OTG_HOST_PORT_REGS_OFFSET);
- if(*otg_gotgctl &(1<<19)){
- bus_status = 1;
- *otg_dctl &= ~(0x01<<1);//exit soft-disconnect mode
- mdelay(1); // delay about 1ms
- // check dp,dm
- if((*otg_hprt0 & 0xc00)==0xc00)//check hprt[11:10]
- bus_status = 2;
- //*(unsigned int*)(GRF_REG_BASE + GRF_UOC0_CON0) = 0x10001000;
- }
-out:
- return bus_status;
- */
- return 0;
-}
-
-EXPORT_SYMBOL(dwc_otg_check_dpdm);
-
-/***********************************
-USB Port Type
-0 : Disconnect
-1 : SDP - pc
-2 : DCP - charger
-3 : CDP - pc with big currect charge
-***********************************/
-/* When do BC detect PCD pull-up register should be disabled */
-
-#define T_DCD_TIMEOUT (200)
-#define T_BC_WAIT_CHGDET (40)
-#define T_BC_SRC_OFF (10)
-
-int usb_battery_charger_detect(void)
-{
- int port_type = 0;
- int timeout;
-
- //VBUS Valid detect
- if(USBGRF_STATUS->otg_vbusvalid){
- //todo : add DCD !
- mdelay(T_DCD_TIMEOUT);//no DCD just wait for timeout
- /* Turn on VDPSRC */
- //Primary Detection
- USBGRF_UOC0->CON2 = 0x00e000e0;
- timeout = T_BC_WAIT_CHGDET;
- while(timeout--){
- if((USBGRF_STATUS->snps_chgdet))
- break;
- mdelay(1);
- }
-
- /* SDP and CDP/DCP distinguish */
- if(!(USBGRF_STATUS->snps_chgdet))
- {
- port_type = 1;
- /* Turn off VDPSRC */
- USBGRF_UOC0->CON2 = 0x00e00000;
- goto out;
- }
-
- /* Turn on VDMSRC */
- //Secondary Detection
- USBGRF_UOC0->CON2 = 0x00e000c0;
- timeout = T_BC_SRC_OFF;
- while(timeout--){
- if((USBGRF_UOC0->CON2 & 0x00e0) == 0x00c0)
- break;
- mdelay(1);
- }
-
- timeout = T_BC_WAIT_CHGDET;
- while(timeout--){
- if((USBGRF_STATUS->snps_chgdet))
- break;
- mdelay(1);
- }
-
- if((USBGRF_STATUS->snps_chgdet))
- port_type = 2;
- else
- port_type = 3;
-
- USBGRF_UOC0->CON2 = 0x00e00000;
- timeout = T_BC_SRC_OFF;
- while(timeout--){
- if((USBGRF_UOC0->CON2 & 0x00e0) == 0x00c0)
- break;
- mdelay(1);
- }
- }
-out:
- printk("%s , battery_charger_detect %d\n", __func__, port_type);
- return port_type;
-}
-EXPORT_SYMBOL(usb_battery_charger_detect);
-
-
-#ifdef CONFIG_USB20_OTG
-/*DWC_OTG*/
-static struct resource usb20_otg_resource[] = {
- {
- .start = IRQ_USB_OTG,
- .end = IRQ_USB_OTG,
- .flags = IORESOURCE_IRQ,
- },
- {
- .start = RK319X_USBOTG20_PHYS,
- .end = RK319X_USBOTG20_PHYS + RK319X_USBOTG20_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
-
-};
-
-void usb20otg_hw_init(void)
-{
-#ifndef CONFIG_USB20_HOST
- // close USB 2.0 HOST phy and clock
- USBGRF_UOC1->CON1 = 0x007f0055;
-#endif
-
- // usb phy config init
-
- // other hardware init
- iomux_set(OTG_DRV_VBUS);
-}
-void usb20otg_phy_suspend(void* pdata, int suspend)
-{
- struct dwc_otg_platform_data *usbpdata=pdata;
- if(suspend){
- USBGRF_UOC0->CON3 = 0x003f002a;
- USBGRF_UOC0->CON2 = 0x00040004;
-
- usbpdata->phy_status = 1;
- }
- else{
- USBGRF_UOC0->CON2 = 0x00040000;
- usbpdata->phy_status = 0;
- }
-}
-
-void usb20otg_soft_reset(void)
-{
- cru_set_soft_reset(SOFT_RST_USBOTG0, true);
- cru_set_soft_reset(SOFT_RST_USBPHY0, true);
- cru_set_soft_reset(SOFT_RST_OTGC0, true);
- udelay(5);
-
- cru_set_soft_reset(SOFT_RST_USBOTG0, false);
- cru_set_soft_reset(SOFT_RST_USBPHY0, false);
- cru_set_soft_reset(SOFT_RST_OTGC0, false);
- mdelay(2);
-}
-
-void usb20otg_clock_init(void* pdata)
-{
- struct dwc_otg_platform_data *usbpdata=pdata;
- struct clk* ahbclk,*phyclk;
- ahbclk = clk_get(NULL, "hclk_otg0");
- phyclk = clk_get(NULL, "otgphy0_480m_vir");
- usbpdata->phyclk = phyclk;
- usbpdata->ahbclk = ahbclk;
-}
-void usb20otg_clock_enable(void* pdata, int enable)
-{
- struct dwc_otg_platform_data *usbpdata=pdata;
- if(enable){
- clk_enable(usbpdata->ahbclk);
- clk_enable(usbpdata->phyclk);
- }
- else{
- clk_disable(usbpdata->phyclk);
- clk_disable(usbpdata->ahbclk);
- }
-}
-int usb20otg_get_status(int id)
-{
- int ret = -1;
- switch(id)
- {
- case USB_STATUS_BVABLID:
- // bvalid in grf
- ret = USBGRF_STATUS->otg_bvalid;
- break;
- case USB_STATUS_DPDM:
- // dpdm in grf
- ret = USBGRF_STATUS->otg_linestate;
- break;
- case USB_STATUS_ID:
- // id in grf
- ret = USBGRF_STATUS->otg_iddig;
- break;
-
- default:
- break;
- }
- return ret;
-}
-void dwc_otg_uart_mode(void* pdata, int enter_usb_uart_mode)
-{
-#ifdef CONFIG_RK_USB_UART
- //struct dwc_otg_platform_data *usbpdata=pdata;//1:uart 0:usb
- if(1 == enter_usb_uart_mode) //uart mode
- {
- USBGRF_UOC0->CON0 = 0x03000300;
- printk("otg-phy enter uart mode USBGRF_UOC1_CON0 = 0x%08x\n",USBGRF_UOC0->CON0);
-
- }
- if(0 == enter_usb_uart_mode) //usb mode
- {
- USBGRF_UOC0->CON0 = 0x03000000;
- printk("otg-phy enter usb mode USBGRF_UOC1_CON0 = 0x%08x\n",USBGRF_UOC0->CON0);
- }
-#endif
-}
-
-void usb20otg_power_enable(int enable)
-{
-
-}
-struct dwc_otg_platform_data usb20otg_pdata = {
- .phyclk = NULL,
- .ahbclk = NULL,
- .busclk = NULL,
- .phy_status = 0,
- .hw_init=usb20otg_hw_init,
- .phy_suspend=usb20otg_phy_suspend,
- .soft_reset=usb20otg_soft_reset,
- .clock_init=usb20otg_clock_init,
- .clock_enable=usb20otg_clock_enable,
- .get_status=usb20otg_get_status,
- .dwc_otg_uart_mode=dwc_otg_uart_mode,
-};
-
-struct platform_device device_usb20_otg = {
- .name = "usb20_otg",
- .id = -1,
- .num_resources = ARRAY_SIZE(usb20_otg_resource),
- .resource = usb20_otg_resource,
- .dev = {
- .platform_data = &usb20otg_pdata,
- },
-};
-#endif
-#ifdef CONFIG_USB20_HOST
-static struct resource usb20_host_resource[] = {
- {
- .start = IRQ_USB_HOST,
- .end = IRQ_USB_HOST,
- .flags = IORESOURCE_IRQ,
- },
- {
- .start = RK319X_USBHOST20_PHYS,
- .end = RK319X_USBHOST20_PHYS + RK319X_USBHOST20_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
-
-};
-
-void usb20host_hw_init(void)
-{
- // usb phy config init
-
- //GRF_USBPHY1->CON7 = 0x78000000;//host_discon_con 575mv
- GRF_USBPHY1->CON0 = 0xffff8518;
- GRF_USBPHY1->CON1 = 0xffffe007;
- GRF_USBPHY1->CON2 = 0xffff82c9;
- GRF_USBPHY1->CON3 = 0xffff0202;
- GRF_USBPHY1->CON4 = 0xffff5556;
- GRF_USBPHY1->CON5 = 0xffff5555;
- GRF_USBPHY1->CON6 = 0xffff0005;
- GRF_USBPHY1->CON7 = 0xffff68d0;
- GRF_USBPHY1->CON8 = 0xffff0001;
-
- // other haredware init
- iomux_set(HOST_DRV_VBUS);
-}
-void usb20host_phy_suspend(void* pdata, int suspend)
-{
- struct dwc_otg_platform_data *usbpdata=pdata;
-
- if(suspend){
- USBGRF_UOC1->CON1 = 0x007f0051;
- usbpdata->phy_status = 1;
- }
- else{
- USBGRF_UOC1->CON1 = 0x00010000;
- usbpdata->phy_status = 0;
- }
-}
-void usb20host_soft_reset(void)
-{
- //phy reset
- USBGRF_UOC1->CON1 = 0x00030001;
-
- cru_set_soft_reset(SOFT_RST_USBPHY1_UTMI, true);
-
- udelay(15);
-
- USBGRF_UOC1->CON1 = 0x00030002;
-
- udelay(1500);
- cru_set_soft_reset(SOFT_RST_USBPHY1_UTMI, false);
-
- cru_set_soft_reset(SOFT_RST_USBOTG1, true);
- cru_set_soft_reset(SOFT_RST_USBPHY1, true);
- cru_set_soft_reset(SOFT_RST_OTGC1, true);
- udelay(5);
-
- cru_set_soft_reset(SOFT_RST_USBOTG1, false);
- cru_set_soft_reset(SOFT_RST_USBPHY1, false);
- cru_set_soft_reset(SOFT_RST_OTGC1, false);
- mdelay(2);
-
-}
-
-void usb20host_clock_init(void* pdata)
-{
- struct dwc_otg_platform_data *usbpdata=pdata;
- struct clk* ahbclk,*phyclk;
- ahbclk = clk_get(NULL, "hclk_otg1");
- phyclk = clk_get(NULL, "otgphy1_480m_vir");
- usbpdata->phyclk = phyclk;
- usbpdata->ahbclk = ahbclk;
-}
-
-void usb20host_clock_enable(void* pdata, int enable)
-{
- struct dwc_otg_platform_data *usbpdata=pdata;
-
- if(enable){
- clk_enable(usbpdata->ahbclk);
- clk_enable(usbpdata->phyclk);
- }
- else{
- clk_disable(usbpdata->ahbclk);
- //clk_disable(usbpdata->phyclk);
- }
-}
-int usb20host_get_status(int id)
-{
- int ret = -1;
- pGRF_SOC_STATUS USBGRF_STATUS = (pGRF_SOC_STATUS)(USBGRF_SOC_STATUS0);
- switch(id)
- {
- case USB_STATUS_BVABLID:
- // bvalid in grf
- ret = USBGRF_STATUS->uhost_bvalid;
- break;
- case USB_STATUS_DPDM:
- // dpdm in grf
- ret = USBGRF_STATUS->uhost_linestate;
- break;
- case USB_STATUS_ID:
- // id in grf
- ret = 0;
- break;
- default:
- break;
- }
- return ret;
-}
-void usb20host_power_enable(int enable)
-{
- ;
-}
-struct dwc_otg_platform_data usb20host_pdata = {
- .phyclk = NULL,
- .ahbclk = NULL,
- .busclk = NULL,
- .phy_status = 0,
- .hw_init=usb20host_hw_init,
- .phy_suspend=usb20host_phy_suspend,
- .soft_reset=usb20host_soft_reset,
- .clock_init=usb20host_clock_init,
- .clock_enable=usb20host_clock_enable,
- .get_status=usb20host_get_status,
-};
-
-struct platform_device device_usb20_host = {
- .name = "usb20_host",
- .id = -1,
- .num_resources = ARRAY_SIZE(usb20_host_resource),
- .resource = usb20_host_resource,
- .dev = {
- .platform_data = &usb20host_pdata,
- },
-};
-#endif
-#ifdef CONFIG_USB_EHCI_RK
-void rkehci_hw_init(void)
-{
- // usb phy config init
- // hsic phy config init, set hsicphy_txsrtune
- USBGRF_HSIC->PHY_CON0 = 0x03c003c0;
-
- // other haredware init
- // set common_on, in suspend mode, otg/host PLL blocks remain powered
- USBGRF_UOC1->CON0 = 0x00400000;
-
- /* change INCR to INCR16 or INCR8(beats less than 16)
- * or INCR4(beats less than 8) or SINGLE(beats less than 4)
- */
- USBGRF_HSIC->CTRLER_CON0 = 0x00ff00bc;
-}
-
-void rkehci_clock_init(void* pdata)
-{
- struct rkehci_platform_data *usbpdata=pdata;
-
- struct clk *clk_otg, *clk_hs;
-
- /* By default, hsicphy_480m's parent is otg phy 480MHz clk
- * rk3188 must use host phy 480MHz clk
- */
- clk_hs = clk_get(NULL, "hsicphy_480m");
- clk_otg = clk_get(NULL, "otgphy1_480m");
- clk_set_parent(clk_hs, clk_otg);
-
- usbpdata->hclk_hsic = clk_get(NULL, "hclk_hsic");
- usbpdata->hsic_phy_480m = clk_get(NULL, "hsicphy_480m");
- usbpdata->hsic_phy_12m = clk_get(NULL, "hsicphy_12m");
-}
-
-void rkehci_clock_enable(void* pdata, int enable)
-{
- struct rkehci_platform_data *usbpdata=pdata;
-
- if(enable == usbpdata->clk_status)
- return;
-
- if(enable){
- clk_enable(usbpdata->hclk_hsic);
- clk_enable(usbpdata->hsic_phy_480m);
- clk_enable(usbpdata->hsic_phy_12m);
- usbpdata->clk_status = 1;
- }else{
- clk_disable(usbpdata->hsic_phy_12m);
- clk_disable(usbpdata->hsic_phy_480m);
- clk_disable(usbpdata->hclk_hsic);
- usbpdata->clk_status = 0;
- }
-}
-
-void rkehci_soft_reset(void)
-{
- pGRF_HSIC_REG USBGRF_HSIC = (pGRF_HSIC_REG)(GRF_UOC2_BASE);
-
- cru_set_soft_reset(SOFT_RST_HSICPHY, true);
- udelay(12);
- cru_set_soft_reset(SOFT_RST_HSICPHY, false);
- mdelay(2);
-
- USBGRF_HSIC->PHY_CON0 = 0x04000400;
- udelay(2);
- USBGRF_HSIC->PHY_CON0 = 0x04000000;
- udelay(2);
-
- cru_set_soft_reset(SOFT_RST_HSIC_AHB, true);
- udelay(2);
- cru_set_soft_reset(SOFT_RST_HSIC_AHB, false);
- udelay(2);
-}
-
-struct rkehci_platform_data rkehci_pdata = {
- .hclk_hsic = NULL,
- .hsic_phy_12m = NULL,
- .hsic_phy_480m = NULL,
- .clk_status = -1,
- .hw_init = rkehci_hw_init,
- .clock_init = rkehci_clock_init,
- .clock_enable = rkehci_clock_enable,
- .soft_reset = rkehci_soft_reset,
-};
-
-static struct resource resources_hsusb_host[] = {
- {
- .start = IRQ_HSIC,
- .end = IRQ_HSIC,
- .flags = IORESOURCE_IRQ,
- },
- {
- .start = RK30_HSIC_PHYS,
- .end = RK30_HSIC_PHYS + RK30_HSIC_SIZE - 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
-struct platform_device device_hsusb_host = {
- .name = "rk_hsusb_host",
- .id = -1,
- .num_resources = ARRAY_SIZE(resources_hsusb_host),
- .resource = resources_hsusb_host,
- .dev = {
- .coherent_dma_mask = 0xffffffff,
- .platform_data = &rkehci_pdata,
- },
-};
-#endif
-static int __init usbdev_init_devices(void)
-{
- int ret = 0;
-#ifdef CONFIG_USB20_OTG
- ret |= platform_device_register(&device_usb20_otg);
-#endif
-#ifdef CONFIG_USB20_HOST
- ret |= platform_device_register(&device_usb20_host);
-#endif
-#ifdef CONFIG_USB_EHCI_RK
- ret |= platform_device_register(&device_hsusb_host);
-#endif
- if(ret < 0){
- printk("%s: platform_device_register(usb20_otg) failed\n", __func__);
- }
- return ret;
-}
-arch_initcall(usbdev_init_devices);
-
-/*********************************************************************
- rk3190 usb detect
-*********************************************************************/
-
-#define WAKE_LOCK_TIMEOUT (HZ * 10)
-
-static struct wake_lock usb_wakelock;
-static struct delayed_work usb_det_wakeup_work;
-
-inline void do_wakeup(void)
-{
- wake_lock_timeout(&usb_wakelock, WAKE_LOCK_TIMEOUT);
- rk28_send_wakeup_key();
-}
-
-
-/*********** handler for bvalid irq ***********/
-
-static irqreturn_t bvalid_irq_handler(int irq, void *dev_id)
-{
-
-#ifdef CONFIG_RK_USB_UART
- /* usb otg dp/dm switch to usb phy */
- dwc_otg_uart_mode(NULL, PHY_USB_MODE);
-#endif
-
- schedule_delayed_work(&usb_det_wakeup_work, 0);
-
- /* clear irq pending */
- writel_relaxed(0x02000200, &USBGRF_UOC0->CON3);
-
- return IRQ_HANDLED;
-}
-
-/***** handler for otg id rise and fall edge *****/
-
-static irqreturn_t id_irq_handler(int irq, void *dev_id)
-{
- unsigned int uoc_con;
-
- /* clear irq */
- uoc_con = USBGRF_UOC0->CON3;
-
- if(uoc_con & (1<<11))//id rise
- {
- writel_relaxed(0x08000800, &USBGRF_UOC0->CON3);//clear id rise irq pandding
- }
- if(uoc_con & (1<<13))//id fall
- {
-
-#ifdef CONFIG_RK_USB_UART
- /* usb otg dp/dm switch to usb phy */
- dwc_otg_uart_mode(NULL, PHY_USB_MODE);
-#endif
-
- writel_relaxed(0x20002000, &USBGRF_UOC0->CON3);//clear id fall irq pandding
- }
- schedule_delayed_work(&usb_det_wakeup_work, 0);
-
- return IRQ_HANDLED;
-}
-
-/***** handler for otg line status change *****/
-
-static int __init otg_irq_detect_init(void)
-{
- int ret;
- int irq = IRQ_OTG_BVALID;
-
- wake_lock_init(&usb_wakelock, WAKE_LOCK_SUSPEND, "usb_detect");
- INIT_DELAYED_WORK(&usb_det_wakeup_work, do_wakeup);
-
- ret = request_irq(irq, bvalid_irq_handler, 0, "bvalid", NULL);
- if (ret < 0) {
- pr_err("%s: request_irq(%d) failed\n", __func__, irq);
- return ret;
- }
-
- /* clear & enable bvalid irq */
- writel_relaxed((3 << 8) | (3 << 24), &USBGRF_UOC0->CON3);
-
- irq = IRQ_OTG0_ID;
-
- ret = request_irq(irq, id_irq_handler, 0, "otg-id", NULL);
- if (ret < 0) {
- pr_err("%s: request_irq(%d) failed\n", __func__, irq);
- return ret;
- }
-
- /* clear & enable otg change irq */
- /* for rk3026 enable and clear id_fall_irq & id_rise_irq*/
- writel_relaxed((0xf << 26) | (0xf << 10), &USBGRF_UOC0->CON3);
-
- return 0;
-}
-late_initcall(otg_irq_detect_init);
-#endif
-
projects / firefly-linux-kernel-4.4.55.git / commitdiff