1 /* 2 * (C) Copyright 2011 3 * Stefano Babic, DENX Software Engineering, sbabic@denx.de. 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 #ifndef __ASM_ARCH_CLOCK_H 25 #define __ASM_ARCH_CLOCK_H 26 27 #include <common.h> 28 29 #ifdef CONFIG_MX35_HCLK_FREQ 30 #define MXC_HCLK CONFIG_MX35_HCLK_FREQ 31 #else 32 #define MXC_HCLK 24000000 33 #endif 34 35 #ifdef CONFIG_MX35_CLK32 36 #define MXC_CLK32 CONFIG_MX35_CLK32 37 #else 38 #define MXC_CLK32 32768 39 #endif 40 41 enum mxc_clock { 42 MXC_ARM_CLK, 43 MXC_AHB_CLK, 44 MXC_IPG_CLK, 45 MXC_IPG_PERCLK, 46 MXC_UART_CLK, 47 MXC_ESDHC_CLK, 48 MXC_USB_CLK, 49 MXC_CSPI_CLK, 50 MXC_FEC_CLK, 51 MXC_I2C_CLK, 52 }; 53 54 enum mxc_main_clock { 55 CPU_CLK, 56 AHB_CLK, 57 IPG_CLK, 58 IPG_PER_CLK, 59 NFC_CLK, 60 USB_CLK, 61 HSP_CLK, 62 }; 63 64 enum mxc_peri_clock { 65 UART1_BAUD, 66 UART2_BAUD, 67 UART3_BAUD, 68 SSI1_BAUD, 69 SSI2_BAUD, 70 CSI_BAUD, 71 MSHC_CLK, 72 ESDHC1_CLK, 73 ESDHC2_CLK, 74 ESDHC3_CLK, 75 SPDIF_CLK, 76 SPI1_CLK, 77 SPI2_CLK, 78 }; 79 80 u32 imx_get_uartclk(void); 81 u32 imx_get_fecclk(void); 82 unsigned int mxc_get_clock(enum mxc_clock clk); 83 84 #endif /* __ASM_ARCH_CLOCK_H */ 85