diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-07-06 20:08:28 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-07-06 20:08:28 +0000 |
| commit | 7f21c4a2276901c3bfc8712eabd170a41501aa12 (patch) | |
| tree | 1cd9334fa1cb07fa2d8f748866daf58491c2bf4d /BeagleBoardPkg/Library/BeagleBoardLib/Clock.c | |
| parent | 803f94eef966dd952c4616106b17b5e54eb266a1 (diff) | |
| download | edk2-platforms-7f21c4a2276901c3bfc8712eabd170a41501aa12.tar.xz | |
BeagleBoardPkg: Implement ArmPlatformLib and the ARM PCDs to reuse ARM common components on the BeagleBoard.
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
Diffstat (limited to 'BeagleBoardPkg/Library/BeagleBoardLib/Clock.c')
| -rwxr-xr-x | BeagleBoardPkg/Library/BeagleBoardLib/Clock.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/BeagleBoardPkg/Library/BeagleBoardLib/Clock.c b/BeagleBoardPkg/Library/BeagleBoardLib/Clock.c new file mode 100755 index 0000000000..8de24f851c --- /dev/null +++ b/BeagleBoardPkg/Library/BeagleBoardLib/Clock.c @@ -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);
+}
|