Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * linux/arch/$(ARCH)/platform/$(PLATFORM)/config.c |
| 3 | * |
| 4 | * Copyright (C) 1993 Hamish Macdonald |
| 5 | * Copyright (C) 1999 D. Jeff Dionne |
| 6 | * |
| 7 | * This file is subject to the terms and conditions of the GNU General Public |
| 8 | * License. See the file COPYING in the main directory of this archive |
| 9 | * for more details. |
| 10 | * |
| 11 | * VZ Support/Fixes Evan Stawnyczy <e@lineo.ca> |
| 12 | */ |
| 13 | |
| 14 | #include <asm/dbg.h> |
| 15 | #include <stdarg.h> |
| 16 | #include <linux/config.h> |
| 17 | #include <linux/types.h> |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/mm.h> |
| 20 | #include <linux/tty.h> |
| 21 | #include <linux/console.h> |
| 22 | #include <linux/interrupt.h> |
| 23 | #include <asm/current.h> |
| 24 | |
| 25 | #include <asm/setup.h> |
| 26 | #include <asm/system.h> |
| 27 | #include <asm/pgtable.h> |
| 28 | #include <asm/irq.h> |
| 29 | #include <asm/machdep.h> |
| 30 | #include <asm/MC68328.h> |
| 31 | |
| 32 | |
| 33 | void BSP_sched_init(irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) |
| 34 | { |
| 35 | |
| 36 | #ifdef CONFIG_XCOPILOT_BUGS |
| 37 | /* |
| 38 | * The only thing I know is that CLK32 is not available on Xcopilot |
| 39 | * I have little idea about what frequency SYSCLK has on Xcopilot. |
| 40 | * The values for prescaler and compare registers were simply |
| 41 | * taken from the original source |
| 42 | */ |
| 43 | |
| 44 | /* Restart mode, Enable int, SYSCLK, Enable timer */ |
| 45 | TCTL2 = TCTL_OM | TCTL_IRQEN | TCTL_CLKSOURCE_SYSCLK | TCTL_TEN; |
| 46 | /* Set prescaler */ |
| 47 | TPRER2 = 2; |
| 48 | /* Set compare register */ |
| 49 | TCMP2 = 0xd7e4; |
| 50 | #else |
| 51 | /* Restart mode, Enable int, 32KHz, Enable timer */ |
| 52 | TCTL2 = TCTL_OM | TCTL_IRQEN | TCTL_CLKSOURCE_32KHZ | TCTL_TEN; |
| 53 | /* Set prescaler (Divide 32KHz by 32)*/ |
| 54 | TPRER2 = 31; |
| 55 | /* Set compare register 32Khz / 32 / 10 = 100 */ |
| 56 | TCMP2 = 10; |
| 57 | #endif |
| 58 | |
| 59 | request_irq(TMR2_IRQ_NUM, timer_routine, IRQ_FLG_LOCK, "timer", NULL); |
| 60 | } |
| 61 | |
| 62 | void BSP_tick(void) |
| 63 | { |
| 64 | /* Reset Timer2 */ |
| 65 | TSTAT2 &= 0; |
| 66 | } |
| 67 | |
| 68 | unsigned long BSP_gettimeoffset (void) |
| 69 | { |
| 70 | return 0; |
| 71 | } |
| 72 | |
| 73 | void BSP_gettod (int *yearp, int *monp, int *dayp, |
| 74 | int *hourp, int *minp, int *secp) |
| 75 | { |
| 76 | } |
| 77 | |
| 78 | int BSP_hwclk(int op, struct hwclk_time *t) |
| 79 | { |
| 80 | if (!op) { |
| 81 | /* read */ |
| 82 | } else { |
| 83 | /* write */ |
| 84 | } |
| 85 | return 0; |
| 86 | } |
| 87 | |
| 88 | int BSP_set_clock_mmss (unsigned long nowtime) |
| 89 | { |
| 90 | #if 0 |
| 91 | short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; |
| 92 | |
| 93 | tod->second1 = real_seconds / 10; |
| 94 | tod->second2 = real_seconds % 10; |
| 95 | tod->minute1 = real_minutes / 10; |
| 96 | tod->minute2 = real_minutes % 10; |
| 97 | #endif |
| 98 | return 0; |
| 99 | } |
| 100 | |
| 101 | void BSP_reset (void) |
| 102 | { |
| 103 | local_irq_disable(); |
| 104 | asm volatile ("moveal #0x10c00000, %a0;\n\t" |
| 105 | "moveb #0, 0xFFFFF300;\n\t" |
| 106 | "moveal 0(%a0), %sp;\n\t" |
| 107 | "moveal 4(%a0), %a0;\n\t" |
| 108 | "jmp (%a0);"); |
| 109 | } |
| 110 | |
| 111 | void config_BSP(char *command, int len) |
| 112 | { |
| 113 | printk(KERN_INFO "\n68328 support D. Jeff Dionne <jeff@uclinux.org>\n"); |
| 114 | printk(KERN_INFO "68328 support Kenneth Albanowski <kjahds@kjshds.com>\n"); |
| 115 | printk(KERN_INFO "68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n"); |
| 116 | |
| 117 | mach_sched_init = BSP_sched_init; |
| 118 | mach_tick = BSP_tick; |
| 119 | mach_gettimeoffset = BSP_gettimeoffset; |
| 120 | mach_gettod = BSP_gettod; |
| 121 | mach_hwclk = NULL; |
| 122 | mach_set_clock_mmss = NULL; |
| 123 | mach_reset = BSP_reset; |
| 124 | *command = '\0'; |
| 125 | } |