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/platform_device.h> 17 #include <linux/serial_8250.h> 18 #include <linux/dma-mapping.h> 19 #include <linux/pgtable.h> 20 21 #include <asm/jazz.h> 22 #include <asm/jazzdma.h> 23 #include <asm/reboot.h> 24 #include <asm/tlbmisc.h> 25 26 extern void jazz_machine_restart(char *command); 27 28 static struct resource jazz_io_resources[] = { 29 { 30 .start = 0x00, 31 .end = 0x1f, 32 .name = "dma1", 33 .flags = IORESOURCE_IO | IORESOURCE_BUSY 34 }, { 35 .start = 0x40, 36 .end = 0x5f, 37 .name = "timer", 38 .flags = IORESOURCE_IO | IORESOURCE_BUSY 39 }, { 40 .start = 0x80, 41 .end = 0x8f, 42 .name = "dma page reg", 43 .flags = IORESOURCE_IO | IORESOURCE_BUSY 44 }, { 45 .start = 0xc0, 46 .end = 0xdf, 47 .name = "dma2", 48 .flags = IORESOURCE_IO | IORESOURCE_BUSY 49 } 50 }; 51 52 void __init plat_mem_setup(void) 53 { 54 int i; 55 56 /* Map 0xe0000000 -> 0x0:800005C0, 0xe0010000 -> 0x1:30000580 */ 57 add_wired_entry(0x02000017, 0x03c00017, 0xe0000000, PM_64K); 58 /* Map 0xe2000000 -> 0x0:900005C0, 0xe3010000 -> 0x0:910005C0 */ 59 add_wired_entry(0x02400017, 0x02440017, 0xe2000000, PM_16M); 60 /* Map 0xe4000000 -> 0x0:600005C0, 0xe4100000 -> 400005C0 */ 61 add_wired_entry(0x01800017, 0x01000017, 0xe4000000, PM_4M); 62 63 set_io_port_base(JAZZ_PORT_BASE); 64 #ifdef CONFIG_EISA 65 EISA_bus = 1; 66 #endif 67 68 /* request I/O space for devices used on all i[345]86 PCs */ 69 for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++) 70 request_resource(&ioport_resource, jazz_io_resources + i); 71 72 /* The RTC is outside the port address space */ 73 74 _machine_restart = jazz_machine_restart; 75 76 add_preferred_console("ttyS", 0, "9600"); 77 } 78 79 #ifdef CONFIG_OLIVETTI_M700 80 #define UART_CLK 1843200 81 #else 82 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know 83 exactly which ones ... XXX */ 84 #define UART_CLK (8000000 / 16) /* ( 3072000 / 16) */ 85 #endif 86 87 #define MEMPORT(_base, _irq) \ 88 { \ 89 .mapbase = (_base), \ 90 .membase = (void *)(_base), \ 91 .irq = (_irq), \ 92 .uartclk = UART_CLK, \ 93 .iotype = UPIO_MEM, \ 94 .flags = UPF_BOOT_AUTOCONF, \ 95 } 96 97 static struct plat_serial8250_port jazz_serial_data[] = { 98 MEMPORT(JAZZ_SERIAL1_BASE, JAZZ_SERIAL1_IRQ), 99 MEMPORT(JAZZ_SERIAL2_BASE, JAZZ_SERIAL2_IRQ), 100 { }, 101 }; 102 103 static struct platform_device jazz_serial8250_device = { 104 .name = "serial8250", 105 .id = PLAT8250_DEV_PLATFORM, 106 .dev = { 107 .platform_data = jazz_serial_data, 108 }, 109 }; 110 111 static struct resource jazz_esp_rsrc[] = { 112 { 113 .start = JAZZ_SCSI_BASE, 114 .end = JAZZ_SCSI_BASE + 31, 115 .flags = IORESOURCE_MEM 116 }, 117 { 118 .start = JAZZ_SCSI_DMA, 119 .end = JAZZ_SCSI_DMA, 120 .flags = IORESOURCE_MEM 121 }, 122 { 123 .start = JAZZ_SCSI_IRQ, 124 .end = JAZZ_SCSI_IRQ, 125 .flags = IORESOURCE_IRQ 126 } 127 }; 128 129 static u64 jazz_esp_dma_mask = DMA_BIT_MASK(32); 130 131 static struct platform_device jazz_esp_pdev = { 132 .name = "jazz_esp", 133 .num_resources = ARRAY_SIZE(jazz_esp_rsrc), 134 .resource = jazz_esp_rsrc, 135 .dev = { 136 .dma_mask = &jazz_esp_dma_mask, 137 .coherent_dma_mask = DMA_BIT_MASK(32), 138 } 139 }; 140 141 static struct resource jazz_sonic_rsrc[] = { 142 { 143 .start = JAZZ_ETHERNET_BASE, 144 .end = JAZZ_ETHERNET_BASE + 0xff, 145 .flags = IORESOURCE_MEM 146 }, 147 { 148 .start = JAZZ_ETHERNET_IRQ, 149 .end = JAZZ_ETHERNET_IRQ, 150 .flags = IORESOURCE_IRQ 151 } 152 }; 153 154 static u64 jazz_sonic_dma_mask = DMA_BIT_MASK(32); 155 156 static struct platform_device jazz_sonic_pdev = { 157 .name = "jazzsonic", 158 .num_resources = ARRAY_SIZE(jazz_sonic_rsrc), 159 .resource = jazz_sonic_rsrc, 160 .dev = { 161 .dma_mask = &jazz_sonic_dma_mask, 162 .coherent_dma_mask = DMA_BIT_MASK(32), 163 } 164 }; 165 166 static struct resource jazz_cmos_rsrc[] = { 167 { 168 .start = 0x70, 169 .end = 0x71, 170 .flags = IORESOURCE_IO 171 }, 172 { 173 .start = 8, 174 .end = 8, 175 .flags = IORESOURCE_IRQ 176 } 177 }; 178 179 static struct platform_device jazz_cmos_pdev = { 180 .name = "rtc_cmos", 181 .num_resources = ARRAY_SIZE(jazz_cmos_rsrc), 182 .resource = jazz_cmos_rsrc 183 }; 184 185 static struct platform_device pcspeaker_pdev = { 186 .name = "pcspkr", 187 .id = -1, 188 }; 189 190 static int __init jazz_setup_devinit(void) 191 { 192 platform_device_register(&jazz_serial8250_device); 193 platform_device_register(&jazz_esp_pdev); 194 platform_device_register(&jazz_sonic_pdev); 195 platform_device_register(&jazz_cmos_pdev); 196 platform_device_register(&pcspeaker_pdev); 197 198 return 0; 199 } 200 201 device_initcall(jazz_setup_devinit); 202