diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-08-15 16:44:05 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-08-15 16:44:05 +0000 |
| commit | 6b73be803b7a43035b673c9a8f7cd19420a1c331 (patch) | |
| tree | 37cc9f09e20e5f7ef01536212820785734f71067 /Omap35xxPkg | |
| parent | e0932788c3b2b9e57f1546cb201d355c11f308cd (diff) | |
| download | edk2-platforms-6b73be803b7a43035b673c9a8f7cd19420a1c331.tar.xz | |
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
Diffstat (limited to 'Omap35xxPkg')
| -rw-r--r-- | Omap35xxPkg/Include/TPS65950.h | 7 | ||||
| -rw-r--r-- | Omap35xxPkg/PciEmulation/PciEmulation.c | 32 |
2 files changed, 28 insertions, 11 deletions
diff --git a/Omap35xxPkg/Include/TPS65950.h b/Omap35xxPkg/Include/TPS65950.h index ee26a0368a..8ba9dbaf2f 100644 --- a/Omap35xxPkg/Include/TPS65950.h +++ b/Omap35xxPkg/Include/TPS65950.h @@ -50,4 +50,11 @@ #define LEDAPWM BIT4 #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__ diff --git a/Omap35xxPkg/PciEmulation/PciEmulation.c b/Omap35xxPkg/PciEmulation/PciEmulation.c index dd5e8f7b67..6b5528cea4 100644 --- a/Omap35xxPkg/PciEmulation/PciEmulation.c +++ b/Omap35xxPkg/PciEmulation/PciEmulation.c @@ -60,7 +60,7 @@ ConfigureUSBHost ( EFI_STATUS Status; UINT8 Data = 0; - // Take USB host out of force-standby mode + // Take USB host out of force-standby mode MmioWrite32 (UHH_SYSCONFIG, UHH_SYSCONFIG_MIDLEMODE_NO_STANDBY | UHH_SYSCONFIG_CLOCKACTIVITY_ON | UHH_SYSCONFIG_SIDLEMODE_NO_STANDBY @@ -77,22 +77,32 @@ ConfigureUSBHost ( | UHH_HOSTCONFIG_P1_ULPI_BYPASS_ULPI_MODE); // 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); - // Get the Power IC protocol. - Status = gBS->LocateProtocol(&gEmbeddedExternalDeviceProtocolGuid, NULL, (VOID **)&gTPS65950); - ASSERT_EFI_ERROR(Status); + // Get the Power IC protocol + Status = gBS->LocateProtocol (&gEmbeddedExternalDeviceProtocolGuid, NULL, (VOID **)&gTPS65950); + ASSERT_EFI_ERROR (Status); - //Enable power to the USB host. - Status = gTPS65950->Read(gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data); + // 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); - //LEDAON & LEDAPWM control the power to the USB host so enable those bits. - Data |= (LEDAON | LEDAPWM); + Data = VAUX_DEDICATED_18V; + Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, VAUX2_DEDICATED), 1, &Data); + ASSERT_EFI_ERROR (Status); - Status = gTPS65950->Write(gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data); - ASSERT_EFI_ERROR(Status); + // Enable power to the USB hub + Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data); + ASSERT_EFI_ERROR (Status); + + // LEDAON controls the power to the USB host, PWM is disabled + Data &= ~LEDAPWM; + Data |= LEDAON; + + Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data); + ASSERT_EFI_ERROR (Status); } |