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rk3026: usb: phy parameter tuning

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This commit is contained in:
lyz
2013-11-05 10:45:08 +08:00
parent 8e982c223c
commit 566c44613d
2 changed files with 37 additions and 12 deletions
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21
drivers/usb/dwc_otg/usbdev_rk3026.c
View File

@@ -22,17 +22,9 @@
#include "usbdev_rk.h"
#include "dwc_otg_regs.h"
#ifdef CONFIG_ARCH_RK3026
#define GRF_REG_BASE RK2928_GRF_BASE
#define USBOTG_SIZE RK2928_USBOTG20_SIZE
#define USBGRF_SOC_STATUS0 (GRF_REG_BASE+0x14c)
#define USBGRF_UOC0_CON0 (GRF_REG_BASE+0x17c)
#define USBGRF_UOC1_CON0 (GRF_REG_BASE+0X190)
#define USBGRF_UOC1_CON1 (GRF_REG_BASE+0x194)
#include "usbdev_rk3026_grf_regs.h"
int dwc_otg_check_dpdm(void)
{
@@ -108,8 +100,11 @@ void usb20otg_hw_init(void)
unsigned int * otg_phy_con1 = (unsigned int*)(USBGRF_UOC1_CON1);
*otg_phy_con1 = 0x1D5 |(0x1ff<<16); // enter suspend.
#endif
// usb phy config init
pGRF_USBPHY_REG GRF_USBPHY0 = (pGRF_USBPHY_REG)GRF_USBPHY0_CON_BASE;
GRF_USBPHY0->CON0 = 0x00070007;//open pre-emphasize for otg
// other hardware init
#ifdef CONFIG_RK_CONFIG
otg_drv_init(0);
@@ -295,7 +290,9 @@ static struct resource usb20_host_resource[] = {
void usb20host_hw_init(void)
{
// usb phy config init
pGRF_USBPHY_REG GRF_USBPHY1 = (pGRF_USBPHY_REG)GRF_USBPHY1_CON_BASE;
GRF_USBPHY1->CON7 = 0x78000000;//host_discon_con 575mv
// other haredware init
#ifdef CONFIG_RK_CONFIG
host_drv_init(1);

28
drivers/usb/dwc_otg/usbdev_rk3026_grf_regs.h Executable file
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@@ -0,0 +1,28 @@
#ifndef __USBDEV_RK3026_GRF_REGS_H__
#define __USBDEV_RK3026_GRF_REGS_H__
#define GRF_REG_BASE RK2928_GRF_BASE
#define USBOTG_SIZE RK2928_USBOTG20_SIZE
#define GRF_USBPHY0_CON_BASE (GRF_REG_BASE+0x280)
#define GRF_USBPHY1_CON_BASE (GRF_REG_BASE+0x2a0)
#define USBGRF_SOC_STATUS0 (GRF_REG_BASE+0x14c)
#define USBGRF_UOC0_CON0 (GRF_REG_BASE+0x17c)
#define USBGRF_UOC1_CON0 (GRF_REG_BASE+0X190)
#define USBGRF_UOC1_CON1 (GRF_REG_BASE+0x194)
typedef volatile struct tag_grf_usbphy_regs
{
u32 CON0;
u32 CON1;
u32 CON2;
u32 CON3;
u32 CON4;
u32 CON5;
u32 CON6;
u32 CON7;
} GRF_USBPHY_REG ,*pGRF_USBPHY_REG;
#endif