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

BeagleBoardPkg: Implement ArmPlatformLib and the ARM PCDs to reuse ARM common components on the BeagleBoard.

Browse Source 
To build the UEFI BeagleBoard firmware using this ARM framework either use ./build-next.sh
or directly call the EDK2 BaseTools with BeagleBoardPkg-next.dsc.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11998 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2011-07-06 20:08:28 +00:00
parent 803f94eef9
commit 7f21c4a227
11 changed files with 1857 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
BeagleBoardPkg/Library/BeagleBoardLib/Clock.c Executable file
View File

@@ -0,0 +1,70 @@
/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <Library/IoLib.h>
#include <Library/DebugLib.h>
#include <Omap3530/Omap3530.h>
VOID
ClockInit (
VOID
)
{
//DPLL1 - DPLL4 are configured part of Configuration header which OMAP3 ROM parses.
// Enable PLL5 and set to 120 MHz as a reference clock.
MmioWrite32 (CM_CLKSEL4_PLL, CM_CLKSEL_PLL_MULT(120) | CM_CLKSEL_PLL_DIV(13));
MmioWrite32 (CM_CLKSEL5_PLL, CM_CLKSEL_DIV_120M(1));
MmioWrite32 (CM_CLKEN2_PLL, CM_CLKEN_FREQSEL_075_100 | CM_CLKEN_ENABLE);
// Turn on functional & interface clocks to the USBHOST power domain
MmioOr32(CM_FCLKEN_USBHOST, CM_FCLKEN_USBHOST_EN_USBHOST2_ENABLE
| CM_FCLKEN_USBHOST_EN_USBHOST1_ENABLE);
MmioOr32(CM_ICLKEN_USBHOST, CM_ICLKEN_USBHOST_EN_USBHOST_ENABLE);
// Turn on functional & interface clocks to the USBTLL block.
MmioOr32(CM_FCLKEN3_CORE, CM_FCLKEN3_CORE_EN_USBTLL_ENABLE);
MmioOr32(CM_ICLKEN3_CORE, CM_ICLKEN3_CORE_EN_USBTLL_ENABLE);
// Turn on functional & interface clocks to MMC1 and I2C1 modules.
MmioOr32(CM_FCLKEN1_CORE, CM_FCLKEN1_CORE_EN_MMC1_ENABLE
| CM_FCLKEN1_CORE_EN_I2C1_ENABLE);
MmioOr32(CM_ICLKEN1_CORE, CM_ICLKEN1_CORE_EN_MMC1_ENABLE
| CM_ICLKEN1_CORE_EN_I2C1_ENABLE);
// Turn on functional & interface clocks to various Peripherals.
MmioOr32(CM_FCLKEN_PER, CM_FCLKEN_PER_EN_UART3_ENABLE
| CM_FCLKEN_PER_EN_GPT3_ENABLE
| CM_FCLKEN_PER_EN_GPT4_ENABLE
| CM_FCLKEN_PER_EN_GPIO2_ENABLE
| CM_FCLKEN_PER_EN_GPIO3_ENABLE
| CM_FCLKEN_PER_EN_GPIO4_ENABLE
| CM_FCLKEN_PER_EN_GPIO5_ENABLE
| CM_FCLKEN_PER_EN_GPIO6_ENABLE);
MmioOr32(CM_ICLKEN_PER, CM_ICLKEN_PER_EN_UART3_ENABLE
| CM_ICLKEN_PER_EN_GPT3_ENABLE
| CM_ICLKEN_PER_EN_GPT4_ENABLE
| CM_ICLKEN_PER_EN_GPIO2_ENABLE
| CM_ICLKEN_PER_EN_GPIO3_ENABLE
| CM_ICLKEN_PER_EN_GPIO4_ENABLE
| CM_ICLKEN_PER_EN_GPIO5_ENABLE
| CM_ICLKEN_PER_EN_GPIO6_ENABLE);
// Turn on functional & inteface clocks to various wakeup modules.
MmioOr32(CM_FCLKEN_WKUP, CM_FCLKEN_WKUP_EN_GPIO1_ENABLE
| CM_FCLKEN_WKUP_EN_WDT2_ENABLE);
MmioOr32(CM_ICLKEN_WKUP, CM_ICLKEN_WKUP_EN_GPIO1_ENABLE
| CM_ICLKEN_WKUP_EN_WDT2_ENABLE);
}