1 /** @file 2 3 Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> 4 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include <Library/IoLib.h> 16 #include <Library/DebugLib.h> 17 18 #include <Omap3530/Omap3530.h> 19 20 VOID 21 ClockInit ( 22 VOID 23 ) 24 { 25 //DPLL1 - DPLL4 are configured part of Configuration header which OMAP3 ROM parses. 26 27 // Enable PLL5 and set to 120 MHz as a reference clock. 28 MmioWrite32 (CM_CLKSEL4_PLL, CM_CLKSEL_PLL_MULT(120) | CM_CLKSEL_PLL_DIV(13)); 29 MmioWrite32 (CM_CLKSEL5_PLL, CM_CLKSEL_DIV_120M(1)); 30 MmioWrite32 (CM_CLKEN2_PLL, CM_CLKEN_FREQSEL_075_100 | CM_CLKEN_ENABLE); 31 32 // Turn on functional & interface clocks to the USBHOST power domain 33 MmioOr32(CM_FCLKEN_USBHOST, CM_FCLKEN_USBHOST_EN_USBHOST2_ENABLE 34 | CM_FCLKEN_USBHOST_EN_USBHOST1_ENABLE); 35 MmioOr32(CM_ICLKEN_USBHOST, CM_ICLKEN_USBHOST_EN_USBHOST_ENABLE); 36 37 // Turn on functional & interface clocks to the USBTLL block. 38 MmioOr32(CM_FCLKEN3_CORE, CM_FCLKEN3_CORE_EN_USBTLL_ENABLE); 39 MmioOr32(CM_ICLKEN3_CORE, CM_ICLKEN3_CORE_EN_USBTLL_ENABLE); 40 41 // Turn on functional & interface clocks to MMC1 and I2C1 modules. 42 MmioOr32(CM_FCLKEN1_CORE, CM_FCLKEN1_CORE_EN_MMC1_ENABLE 43 | CM_FCLKEN1_CORE_EN_I2C1_ENABLE); 44 MmioOr32(CM_ICLKEN1_CORE, CM_ICLKEN1_CORE_EN_MMC1_ENABLE 45 | CM_ICLKEN1_CORE_EN_I2C1_ENABLE); 46 47 // Turn on functional & interface clocks to various Peripherals. 48 MmioOr32(CM_FCLKEN_PER, CM_FCLKEN_PER_EN_UART3_ENABLE 49 | CM_FCLKEN_PER_EN_GPT4_ENABLE 50 | CM_FCLKEN_PER_EN_GPIO2_ENABLE 51 | CM_FCLKEN_PER_EN_GPIO3_ENABLE 52 | CM_FCLKEN_PER_EN_GPIO4_ENABLE 53 | CM_FCLKEN_PER_EN_GPIO5_ENABLE 54 | CM_FCLKEN_PER_EN_GPIO6_ENABLE); 55 MmioOr32(CM_ICLKEN_PER, CM_ICLKEN_PER_EN_UART3_ENABLE 56 | CM_ICLKEN_PER_EN_GPT3_ENABLE 57 | CM_ICLKEN_PER_EN_GPT4_ENABLE 58 | CM_ICLKEN_PER_EN_GPIO2_ENABLE 59 | CM_ICLKEN_PER_EN_GPIO3_ENABLE 60 | CM_ICLKEN_PER_EN_GPIO4_ENABLE 61 | CM_ICLKEN_PER_EN_GPIO5_ENABLE 62 | CM_ICLKEN_PER_EN_GPIO6_ENABLE); 63 64 // Turn on functional & inteface clocks to various wakeup modules. 65 MmioOr32(CM_FCLKEN_WKUP, CM_FCLKEN_WKUP_EN_GPIO1_ENABLE 66 | CM_FCLKEN_WKUP_EN_WDT2_ENABLE); 67 MmioOr32(CM_ICLKEN_WKUP, CM_ICLKEN_WKUP_EN_GPIO1_ENABLE 68 | CM_ICLKEN_WKUP_EN_WDT2_ENABLE); 69 } 70
