shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-08 20:07:46 +09:00
Code Issues Packages Projects Releases Wiki Activity

USB: Add rk_usb_power_up and power_down function.

Browse Source
This commit is contained in:
wlf
2014-04-18 09:40:16 +08:00
parent 1183ec3c67
commit bb9c1f7c80
2 changed files with 81 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

79
drivers/usb/dwc_otg_310/dwc_otg_driver.c
View File

@@ -104,6 +104,9 @@ static struct usb20host_pdata_id usb20host_pdata[] = {
};
#endif
#ifdef CONFIG_RK_USB_UART
static u32 usb_to_uart_status;
#endif
/*-------------------------------------------------------------------------*/
/* Encapsulate the module parameter settings */
@@ -1571,6 +1574,82 @@ static struct platform_driver dwc_otg_driver = {
};
#endif
void rk_usb_power_up(void)
{
struct dwc_otg_platform_data *pldata_otg;
struct dwc_otg_platform_data *pldata_host;
struct rkehci_platform_data *pldata_ehci;
if(cpu_is_rk3288()){
#ifdef CONFIG_RK_USB_UART
/* enable USB bypass UART function */
writel_relaxed(0x00c00000 | usb_to_uart_status, RK_GRF_VIRT + RK3288_GRF_UOC0_CON3);
#endif
/* unset siddq,the analog blocks are powered up */
#ifdef CONFIG_USB20_OTG
if((pldata_otg = &usb20otg_pdata_rk3288)){
if(pldata_otg->phy_status == USB_PHY_SUSPEND)
writel_relaxed((0x01<<13)<<16, RK_GRF_VIRT + RK3288_GRF_UOC0_CON0);
}
#endif
#ifdef CONFIG_USB20_HOST
if((pldata_host = &usb20host_pdata_rk3288)){
if(pldata_host->phy_status == USB_PHY_SUSPEND)
writel_relaxed((0x01<<13)<<16, RK_GRF_VIRT + RK3288_GRF_UOC2_CON0);
}
#endif
#ifdef CONFIG_USB_EHCI_RK
if((pldata_ehci = &rkehci_pdata_rk3288)){
if(pldata_ehci->phy_status == USB_PHY_SUSPEND)
writel_relaxed((0x01<<13)<<16, RK_GRF_VIRT + RK3288_GRF_UOC1_CON0);
}
#endif
}
}
void rk_usb_power_down(void)
{
struct dwc_otg_platform_data *pldata_otg;
struct dwc_otg_platform_data *pldata_host;
struct rkehci_platform_data *pldata_ehci;
if(cpu_is_rk3288()){
#ifdef CONFIG_RK_USB_UART
/* disable USB bypass UART function */
usb_to_uart_status = readl_relaxed(RK_GRF_VIRT + RK3288_GRF_UOC0_CON3);
writel_relaxed(0x00c00000, RK_GRF_VIRT + RK3288_GRF_UOC0_CON3);
#endif
/* set siddq,the analog blocks are powered down
* note:
* 1. Before asserting SIDDQ, ensure that VDATSRCENB0,
* VDATDETENB0, DCDENB0, BYPASSSEL0, ADPPRBENB0,
* and TESTBURNIN are set to 1'b0.
* 2. Before asserting SIDDQ, ensure that phy enter suspend.*/
#ifdef CONFIG_USB20_OTG
if((pldata_otg = &usb20otg_pdata_rk3288)){
if(pldata_otg->phy_status == USB_PHY_SUSPEND)
writel_relaxed((0x01<<13)|((0x01<<13)<<16), RK_GRF_VIRT + RK3288_GRF_UOC0_CON0);
}
#endif
#ifdef CONFIG_USB20_HOST
if((pldata_host = &usb20host_pdata_rk3288)){
if(pldata_host->phy_status == USB_PHY_SUSPEND)
writel_relaxed((0x01<<13)|((0x01<<13)<<16), RK_GRF_VIRT + RK3288_GRF_UOC2_CON0);
}
#endif
#ifdef CONFIG_USB_EHCI_RK
if((pldata_ehci = &rkehci_pdata_rk3288)){
if(pldata_ehci->phy_status == USB_PHY_SUSPEND)
writel_relaxed((0x01<<13)|((0x01<<13)<<16), RK_GRF_VIRT + RK3288_GRF_UOC1_CON0);
}
#endif
}
}
EXPORT_SYMBOL(rk_usb_power_up);
EXPORT_SYMBOL(rk_usb_power_down);
/**
* This function is called when the dwc_otg_driver is installed with the
* insmod command. It registers the dwc_otg_driver structure with the

2
drivers/usb/dwc_otg_310/usbdev_rk.h
View File

@@ -19,6 +19,8 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/rockchip/cru.h>
#include <linux/rockchip/grf.h>
#include <linux/rockchip/cpu.h>
#include "usbdev_grf_regs.h"
#include "usbdev_bc.h"