1 /* 2 * Setup pointers to hardware-dependent routines. 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle 9 * Copyright (C) 2001 MIPS Technologies, Inc. 10 * Copyright (C) 2007 by Thomas Bogendoerfer 11 */ 12 #include <linux/eisa.h> 13 #include <linux/hdreg.h> 14 #include <linux/init.h> 15 #include <linux/ioport.h> 16 #include <linux/sched.h> 17 #include <linux/interrupt.h> 18 #include <linux/mm.h> 19 #include <linux/console.h> 20 #include <linux/fb.h> 21 #include <linux/ide.h> 22 #include <linux/pm.h> 23 #include <linux/screen_info.h> 24 #include <linux/platform_device.h> 25 #include <linux/serial_8250.h> 26 27 #include <asm/bootinfo.h> 28 #include <asm/i8253.h> 29 #include <asm/irq.h> 30 #include <asm/jazz.h> 31 #include <asm/jazzdma.h> 32 #include <asm/reboot.h> 33 #include <asm/io.h> 34 #include <asm/pgtable.h> 35 #include <asm/time.h> 36 #include <asm/traps.h> 37 #include <asm/mc146818-time.h> 38 39 extern asmlinkage void jazz_handle_int(void); 40 41 extern void jazz_machine_restart(char *command); 42 43 static struct resource jazz_io_resources[] = { 44 { 45 .start = 0x00, 46 .end = 0x1f, 47 .name = "dma1", 48 .flags = IORESOURCE_BUSY 49 }, { 50 .start = 0x40, 51 .end = 0x5f, 52 .name = "timer", 53 .flags = IORESOURCE_BUSY 54 }, { 55 .start = 0x80, 56 .end = 0x8f, 57 .name = "dma page reg", 58 .flags = IORESOURCE_BUSY 59 }, { 60 .start = 0xc0, 61 .end = 0xdf, 62 .name = "dma2", 63 .flags = IORESOURCE_BUSY 64 } 65 }; 66 67 void __init plat_time_init(void) 68 { 69 setup_pit_timer(); 70 } 71 72 void __init plat_mem_setup(void) 73 { 74 int i; 75 76 /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */ 77 add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K); 78 /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */ 79 add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M); 80 /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */ 81 add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M); 82 83 set_io_port_base(JAZZ_PORT_BASE); 84 #ifdef CONFIG_EISA 85 if (mips_machtype == MACH_MIPS_MAGNUM_4000) 86 EISA_bus = 1; 87 #endif 88 isa_slot_offset = 0xe3000000; 89 90 /* request I/O space for devices used on all i[345]86 PCs */ 91 for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++) 92 request_resource(&ioport_resource, jazz_io_resources + i); 93 94 /* The RTC is outside the port address space */ 95 96 _machine_restart = jazz_machine_restart; 97 98 #ifdef CONFIG_VT 99 screen_info = (struct screen_info) { 100 0, 0, /* orig-x, orig-y */ 101 0, /* unused */ 102 0, /* orig_video_page */ 103 0, /* orig_video_mode */ 104 160, /* orig_video_cols */ 105 0, 0, 0, /* unused, ega_bx, unused */ 106 64, /* orig_video_lines */ 107 0, /* orig_video_isVGA */ 108 16 /* orig_video_points */ 109 }; 110 #endif 111 112 add_preferred_console("ttyS", 0, "9600"); 113 } 114 115 #ifdef CONFIG_OLIVETTI_M700 116 #define UART_CLK 1843200 117 #else 118 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know 119 exactly which ones ... XXX */ 120 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */ 121 #endif 122 123 #define MEMPORT(_base, _irq) \ 124 { \ 125 .mapbase = (_base), \ 126 .membase = (void *)(_base), \ 127 .irq = (_irq), \ 128 .uartclk = UART_CLK, \ 129 .iotype = UPIO_MEM, \ 130 .flags = UPF_BOOT_AUTOCONF, \ 131 } 132 133 static struct plat_serial8250_port jazz_serial_data[] = { 134 MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ), 135 MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ), 136 { }, 137 }; 138 139 static struct platform_device jazz_serial8250_device = { 140 .name = "serial8250", 141 .id = PLAT8250_DEV_PLATFORM, 142 .dev = { 143 .platform_data = jazz_serial_data, 144 }, 145 }; 146 147 static struct resource jazz_esp_rsrc[] = { 148 { 149 .start = JAZZ_SCSI_BASE, 150 .end = JAZZ_SCSI_BASE + 31, 151 .flags = IORESOURCE_MEM 152 }, 153 { 154 .start = JAZZ_SCSI_DMA, 155 .end = JAZZ_SCSI_DMA, 156 .flags = IORESOURCE_MEM 157 }, 158 { 159 .start = JAZZ_SCSI_IRQ, 160 .end = JAZZ_SCSI_IRQ, 161 .flags = IORESOURCE_IRQ 162 } 163 }; 164 165 static struct platform_device jazz_esp_pdev = { 166 .name = "jazz_esp", 167 .num_resources = ARRAY_SIZE(jazz_esp_rsrc), 168 .resource = jazz_esp_rsrc 169 }; 170 171 static struct resource jazz_sonic_rsrc[] = { 172 { 173 .start = JAZZ_ETHERNET_BASE, 174 .end = JAZZ_ETHERNET_BASE + 0xff, 175 .flags = IORESOURCE_MEM 176 }, 177 { 178 .start = JAZZ_ETHERNET_IRQ, 179 .end = JAZZ_ETHERNET_IRQ, 180 .flags = IORESOURCE_IRQ 181 } 182 }; 183 184 static struct platform_device jazz_sonic_pdev = { 185 .name = "jazzsonic", 186 .num_resources = ARRAY_SIZE(jazz_sonic_rsrc), 187 .resource = jazz_sonic_rsrc 188 }; 189 190 static struct resource jazz_cmos_rsrc[] = { 191 { 192 .start = 0x70, 193 .end = 0x71, 194 .flags = IORESOURCE_IO 195 }, 196 { 197 .start = 8, 198 .end = 8, 199 .flags = IORESOURCE_IRQ 200 } 201 }; 202 203 static struct platform_device jazz_cmos_pdev = { 204 .name = "rtc_cmos", 205 .num_resources = ARRAY_SIZE(jazz_cmos_rsrc), 206 .resource = jazz_cmos_rsrc 207 }; 208 209 static int __init jazz_setup_devinit(void) 210 { 211 platform_device_register(&jazz_serial8250_device); 212 platform_device_register(&jazz_esp_pdev); 213 platform_device_register(&jazz_sonic_pdev); 214 platform_device_register(&jazz_cmos_pdev); 215 return 0; 216 } 217 218 device_initcall(jazz_setup_devinit); 219