sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

BeagleBoardPkg: Set paddings following the BeagleBoard revision (A, B, xM, etc)

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12431 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2011-09-22 23:23:54 +00:00
parent 95b3580f82
commit efe5f1a232
5 changed files with 116 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoard.c
View File

@@ -18,10 +18,11 @@
#include <Library/PcdLib.h>
#include <Omap3530/Omap3530.h>
#include <BeagleBoard.h>
VOID
PadConfiguration (
VOID
BEAGLEBOARD_REVISION Revision
);
VOID
@@ -29,6 +30,30 @@ ClockInit (
VOID
);
/**
Detect board revision
@return Board revision
**/
BEAGLEBOARD_REVISION
BeagleBoardGetRevision (
VOID
)
{
UINT32 OldPinDir;
UINT32 Revision;
// Read GPIO 171, 172, 173
OldPinDir = MmioRead32 (GPIO6_BASE + GPIO_OE);
MmioWrite32(GPIO6_BASE + GPIO_OE, (OldPinDir | BIT11 | BIT12 | BIT13));
Revision = MmioRead32 (GPIO6_BASE + GPIO_DATAIN);
// Restore I/O settings
MmioWrite32 (GPIO6_BASE + GPIO_OE, OldPinDir);
return (BEAGLEBOARD_REVISION)((Revision >> 11) & 0x7);
}
/**
Return if Trustzone is supported by your platform
@@ -105,8 +130,12 @@ ArmPlatformNormalInitialize (
VOID
)
{
//Set up Pin muxing.
PadConfiguration ();
BEAGLEBOARD_REVISION Revision;
Revision = BeagleBoardGetRevision();
// Set up Pin muxing.
PadConfiguration (Revision);
// Set up system clocking
ClockInit ();

74
BeagleBoardPkg/Library/BeagleBoardLib/PadConfiguration.c
View File

@@ -16,10 +16,13 @@
#include <Library/IoLib.h>
#include <Library/DebugLib.h>
#include <Omap3530/Omap3530.h>
#include <BeagleBoard.h>
#define NUM_PINS 238
#define NUM_PINS_SHARED 232
#define NUM_PINS_ABC 6
#define NUM_PINS_XM 12
PAD_CONFIGURATION PadConfigurationTable[NUM_PINS] = {
PAD_CONFIGURATION PadConfigurationTableShared[] = {
//Pin, MuxMode, PullConfig, InputEnable
{ SDRC_D0, MUXMODE0, PULL_DISABLED, INPUT },
{ SDRC_D1, MUXMODE0, PULL_DISABLED, INPUT },
@@ -127,12 +130,6 @@ PAD_CONFIGURATION PadConfigurationTable[NUM_PINS] = {
{ DSS_DATA15, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA16, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA17, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA18, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA19, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA20, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA21, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA22, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA23, MUXMODE0, PULL_DISABLED, OUTPUT },
{ CAM_HS, MUXMODE0, PULL_UP_SELECTED, INPUT },
{ CAM_VS, MUXMODE0, PULL_UP_SELECTED, INPUT },
{ CAM_XCLKA, MUXMODE0, PULL_DISABLED, OUTPUT },
@@ -226,7 +223,7 @@ PAD_CONFIGURATION PadConfigurationTable[NUM_PINS] = {
{ I2C2_SDA, MUXMODE4, PULL_UP_SELECTED, INPUT },
{ I2C3_SCL, MUXMODE0, PULL_UP_SELECTED, INPUT },
{ I2C3_SDA, MUXMODE0, PULL_UP_SELECTED, INPUT },
{ HDQ_SIO, MUXMODE4, PULL_UP_SELECTED, OUTPUT },
{ HDQ_SIO, MUXMODE4, PULL_DISABLED, OUTPUT },
{ MCSPI1_CLK, MUXMODE4, PULL_UP_SELECTED, INPUT },
{ MCSPI1_SIMO, MUXMODE4, PULL_UP_SELECTED, INPUT },
{ MCSPI1_SOMI, MUXMODE0, PULL_DISABLED, INPUT },
@@ -261,22 +258,65 @@ PAD_CONFIGURATION PadConfigurationTable[NUM_PINS] = {
{ ETK_D15, MUXMODE3, PULL_UP_SELECTED, INPUT }
};
PAD_CONFIGURATION PadConfigurationTableAbc[] = {
{ DSS_DATA18, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA19, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA20, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA21, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA22, MUXMODE0, PULL_DISABLED, OUTPUT },
{ DSS_DATA23, MUXMODE0, PULL_DISABLED, OUTPUT }
};
PAD_CONFIGURATION PadConfigurationTableXm[] = {
{ DSS_DATA18, MUXMODE3, PULL_DISABLED, OUTPUT },
{ DSS_DATA19, MUXMODE3, PULL_DISABLED, OUTPUT },
{ DSS_DATA20, MUXMODE3, PULL_DISABLED, OUTPUT },
{ DSS_DATA21, MUXMODE3, PULL_DISABLED, OUTPUT },
{ DSS_DATA22, MUXMODE3, PULL_DISABLED, OUTPUT },
{ DSS_DATA23, MUXMODE3, PULL_DISABLED, OUTPUT },
{ SYS_BOOT0, MUXMODE3, PULL_DISABLED, OUTPUT },
{ SYS_BOOT1, MUXMODE3, PULL_DISABLED, OUTPUT },
{ SYS_BOOT3, MUXMODE3, PULL_DISABLED, OUTPUT },
{ SYS_BOOT4, MUXMODE3, PULL_DISABLED, OUTPUT },
{ SYS_BOOT5, MUXMODE3, PULL_DISABLED, OUTPUT },
{ SYS_BOOT6, MUXMODE3, PULL_DISABLED, OUTPUT }
};
VOID
PadConfiguration (
VOID
BEAGLEBOARD_REVISION Revision
)
{
UINTN Index;
UINT16 PadConfiguration;
UINTN NumPinsToConfigure = sizeof(PadConfigurationTable)/sizeof(PAD_CONFIGURATION);
UINTN Index;
UINT16 PadConfiguration;
PAD_CONFIGURATION *BoardConfiguration;
UINTN NumPinsToConfigure;
for (Index = 0; Index < NUM_PINS_SHARED; Index++) {
// Set up Pad configuration for particular pin.
PadConfiguration = (PadConfigurationTableShared[Index].MuxMode << MUXMODE_OFFSET);
PadConfiguration |= (PadConfigurationTableShared[Index].PullConfig << PULL_CONFIG_OFFSET);
PadConfiguration |= (PadConfigurationTableShared[Index].InputEnable << INPUTENABLE_OFFSET);
// Configure the pin with specific Pad configuration.
MmioWrite16(PadConfigurationTableShared[Index].Pin, PadConfiguration);
}
if (Revision == REVISION_XM) {
BoardConfiguration = PadConfigurationTableXm;
NumPinsToConfigure = NUM_PINS_XM;
} else {
BoardConfiguration = PadConfigurationTableAbc;
NumPinsToConfigure = NUM_PINS_ABC;
}
for (Index = 0; Index < NumPinsToConfigure; Index++) {
//Set up Pad configuration for particular pin.
PadConfiguration = (PadConfigurationTable[Index].MuxMode << MUXMODE_OFFSET);
PadConfiguration |= (PadConfigurationTable[Index].PullConfig << PULL_CONFIG_OFFSET);
PadConfiguration |= (PadConfigurationTable[Index].InputEnable << INPUTENABLE_OFFSET);
PadConfiguration = (BoardConfiguration[Index].MuxMode << MUXMODE_OFFSET);
PadConfiguration |= (BoardConfiguration[Index].PullConfig << PULL_CONFIG_OFFSET);
PadConfiguration |= (BoardConfiguration[Index].InputEnable << INPUTENABLE_OFFSET);
//Configure the pin with specific Pad configuration.
MmioWrite16(PadConfigurationTable[Index].Pin, PadConfiguration);
MmioWrite16(BoardConfiguration[Index].Pin, PadConfiguration);
}
}