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