1 /* 2 * 3 * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.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_MX31_HCLK_FREQ 30 #define MXC_HCLK CONFIG_MX31_HCLK_FREQ 31 #else 32 #define MXC_HCLK 26000000 33 #endif 34 35 #ifdef CONFIG_MX31_CLK32 36 #define MXC_CLK32 CONFIG_MX31_CLK32 37 #else 38 #define MXC_CLK32 32768 39 #endif 40 41 enum mxc_clock { 42 MXC_ARM_CLK, 43 MXC_IPG_CLK, 44 MXC_IPG_PERCLK, 45 MXC_CSPI_CLK, 46 MXC_UART_CLK, 47 MXC_IPU_CLK, 48 MXC_ESDHC_CLK, 49 MXC_I2C_CLK, 50 }; 51 52 unsigned int mxc_get_clock(enum mxc_clock clk); 53 extern u32 imx_get_uartclk(void); 54 extern void mx31_gpio_mux(unsigned long mode); 55 extern void mx31_set_pad(enum iomux_pins pin, u32 config); 56 extern void mx31_set_gpr(enum iomux_gp_func gp, char en); 57 58 void mx31_uart1_hw_init(void); 59 void mx31_uart2_hw_init(void); 60 void mx31_spi2_hw_init(void); 61 void mxc_hw_watchdog_enable(void); 62 void mxc_hw_watchdog_reset(void); 63 64 #endif /* __ASM_ARCH_CLOCK_H */ 65