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Omap35xxPkg: Turn on the power for the USB Hub 

This fix should make the USB Hub power up correctly (tested on BeagleBoard-xM).



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12134 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin 2011-08-15 16:44:05 +00:00
parent e0932788c3
commit 6b73be803b
2 changed files with 28 additions and 11 deletions
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7
Omap35xxPkg/Include/TPS65950.h
View File

@ -50,4 +50,11 @@
#define LEDAPWM BIT4 #define LEDAPWM BIT4
#define LEDBPWM BIT5 #define LEDBPWM BIT5
// USB PHY power
#define VAUX2_DEDICATED 0x79
#define VAUX2_DEV_GRP 0x76
#define VAUX_DEV_GRP_P1 0x20
#define VAUX_DEDICATED_18V 0x05
#endif //__TPS65950_H__ #endif //__TPS65950_H__

30
Omap35xxPkg/PciEmulation/PciEmulation.c
View File

@ -77,22 +77,32 @@ ConfigureUSBHost (
| UHH_HOSTCONFIG_P1_ULPI_BYPASS_ULPI_MODE); | UHH_HOSTCONFIG_P1_ULPI_BYPASS_ULPI_MODE);
// USB reset (GPIO 147 - Port 5 pin 19) output high // USB reset (GPIO 147 - Port 5 pin 19) output high
MmioAnd32(GPIO5_BASE + GPIO_OE, ~BIT19); MmioAnd32 (GPIO5_BASE + GPIO_OE, ~BIT19);
MmioWrite32 (GPIO5_BASE + GPIO_SETDATAOUT, BIT19); MmioWrite32 (GPIO5_BASE + GPIO_SETDATAOUT, BIT19);
// Get the Power IC protocol. // Get the Power IC protocol
Status = gBS->LocateProtocol(&gEmbeddedExternalDeviceProtocolGuid, NULL, (VOID **)&gTPS65950); Status = gBS->LocateProtocol (&gEmbeddedExternalDeviceProtocolGuid, NULL, (VOID **)&gTPS65950);
ASSERT_EFI_ERROR (Status);
// Power the USB PHY
Data = VAUX_DEV_GRP_P1;
Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, VAUX2_DEV_GRP), 1, &Data);
ASSERT_EFI_ERROR(Status); ASSERT_EFI_ERROR(Status);
//Enable power to the USB host. Data = VAUX_DEDICATED_18V;
Status = gTPS65950->Read(gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data); Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, VAUX2_DEDICATED), 1, &Data);
ASSERT_EFI_ERROR(Status); ASSERT_EFI_ERROR (Status);
//LEDAON & LEDAPWM control the power to the USB host so enable those bits. // Enable power to the USB hub
Data |= (LEDAON | LEDAPWM); Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data);
ASSERT_EFI_ERROR (Status);
Status = gTPS65950->Write(gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data); // LEDAON controls the power to the USB host, PWM is disabled
ASSERT_EFI_ERROR(Status); Data &= ~LEDAPWM;
Data |= LEDAON;
Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data);
ASSERT_EFI_ERROR (Status);
} }