1 /****************************************************************************/
3 * linux/include/asm-arm/arch-l7200/sys-clock.h
5 * Registers and helper functions for the L7200 Link-Up Systems
8 * (C) Copyright 2000, S A McConnell (samcconn@cotw.com)
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file COPYING in the main directory of this archive for
15 /****************************************************************************/
17 #define SYS_CLOCK_OFF 0x00050030 /* Offset from IO_START. */
19 /* IO_START and IO_BASE are defined in hardware.h */
21 #define SYS_CLOCK_START (IO_START + SYS_CLCOK_OFF) /* Physical address */
22 #define SYS_CLOCK_BASE (IO_BASE + SYS_CLOCK_OFF) /* Virtual address */
24 /* Define the interface to the SYS_CLOCK */
31 } sys_clock_interface;
33 #define SYS_CLOCK ((volatile sys_clock_interface *)(SYS_CLOCK_BASE))
35 //#define CLOCK_EN (*(volatile unsigned long *)(PMU_BASE+CLOCK_EN_OFF))
36 //#define CLOCK_ESYNC (*(volatile unsigned long *)(PMU_BASE+CLOCK_ESYNC_OFF))
37 //#define CLOCK_SEL (*(volatile unsigned long *)(PMU_BASE+CLOCK_SEL_OFF))
39 /* SYS_CLOCK -> ENABLE */
43 #define CLK3M6_EN 1<<2
45 #define CLK18MU_EN 1<<4
49 #define SIBADC_EN 1<<8
51 #define CLCLK_EN 1<<10
53 /* SYS_CLOCK -> SELECT */
55 #define CLK18M_DIV 1<<0
60 #define ADC_SEL_2 0<<7
61 #define ADC_SEL_4 1<<7
62 #define ADC_SEL_8 3<<7
63 #define ADC_SEL_16 7<<7
64 #define ADC_SEL_32 0x0f<<7
65 #define ADC_SEL_64 0x1f<<7
66 #define ADC_SEL_128 0x3f<<7
67 #define ALTD_SEL 1<<13