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