1 /* 2 * linux/arch/arm/mach-sa1100/collie.c 3 * 4 * May be copied or modified under the terms of the GNU General Public 5 * License. See linux/COPYING for more information. 6 * 7 * This file contains all Collie-specific tweaks. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 * 13 * ChangeLog: 14 * 03-06-2004 John Lenz <jelenz@wisc.edu> 15 * 06-04-2002 Chris Larson <kergoth@digitalnemesis.net> 16 * 04-16-2001 Lineo Japan,Inc. ... 17 */ 18 19 #include <linux/config.h> 20 #include <linux/init.h> 21 #include <linux/kernel.h> 22 #include <linux/tty.h> 23 #include <linux/delay.h> 24 #include <linux/platform_device.h> 25 #include <linux/mtd/mtd.h> 26 #include <linux/mtd/partitions.h> 27 #include <linux/timer.h> 28 29 #include <asm/hardware.h> 30 #include <asm/mach-types.h> 31 #include <asm/irq.h> 32 #include <asm/setup.h> 33 #include <asm/arch/collie.h> 34 35 #include <asm/mach/arch.h> 36 #include <asm/mach/flash.h> 37 #include <asm/mach/map.h> 38 #include <asm/mach/serial_sa1100.h> 39 40 #include <asm/hardware/scoop.h> 41 #include <asm/mach/sharpsl_param.h> 42 #include <asm/hardware/locomo.h> 43 #include <asm/arch/mcp.h> 44 45 #include "generic.h" 46 47 static struct resource collie_scoop_resources[] = { 48 [0] = { 49 .start = 0x40800000, 50 .end = 0x40800fff, 51 .flags = IORESOURCE_MEM, 52 }, 53 }; 54 55 static struct scoop_config collie_scoop_setup = { 56 .io_dir = COLLIE_SCOOP_IO_DIR, 57 .io_out = COLLIE_SCOOP_IO_OUT, 58 }; 59 60 struct platform_device colliescoop_device = { 61 .name = "sharp-scoop", 62 .id = -1, 63 .dev = { 64 .platform_data = &collie_scoop_setup, 65 }, 66 .num_resources = ARRAY_SIZE(collie_scoop_resources), 67 .resource = collie_scoop_resources, 68 }; 69 70 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = { 71 { 72 .dev = &colliescoop_device.dev, 73 .irq = COLLIE_IRQ_GPIO_CF_IRQ, 74 .cd_irq = COLLIE_IRQ_GPIO_CF_CD, 75 .cd_irq_str = "PCMCIA0 CD", 76 }, 77 }; 78 79 static struct scoop_pcmcia_config collie_pcmcia_config = { 80 .devs = &collie_pcmcia_scoop[0], 81 .num_devs = 1, 82 }; 83 84 85 static struct mcp_plat_data collie_mcp_data = { 86 .mccr0 = MCCR0_ADM, 87 .sclk_rate = 11981000, 88 }; 89 90 91 static struct sa1100_port_fns collie_port_fns __initdata = { 92 .set_mctrl = collie_uart_set_mctrl, 93 .get_mctrl = collie_uart_get_mctrl, 94 }; 95 96 97 static struct resource locomo_resources[] = { 98 [0] = { 99 .start = 0x40000000, 100 .end = 0x40001fff, 101 .flags = IORESOURCE_MEM, 102 }, 103 [1] = { 104 .start = IRQ_GPIO25, 105 .end = IRQ_GPIO25, 106 .flags = IORESOURCE_IRQ, 107 }, 108 }; 109 110 static struct platform_device locomo_device = { 111 .name = "locomo", 112 .id = 0, 113 .num_resources = ARRAY_SIZE(locomo_resources), 114 .resource = locomo_resources, 115 }; 116 117 static struct platform_device *devices[] __initdata = { 118 &locomo_device, 119 &colliescoop_device, 120 }; 121 122 static struct mtd_partition collie_partitions[] = { 123 { 124 .name = "bootloader", 125 .offset = 0, 126 .size = 0x000C0000, 127 .mask_flags = MTD_WRITEABLE 128 }, { 129 .name = "kernel", 130 .offset = MTDPART_OFS_APPEND, 131 .size = 0x00100000, 132 }, { 133 .name = "rootfs", 134 .offset = MTDPART_OFS_APPEND, 135 .size = 0x00e20000, 136 } 137 }; 138 139 static void collie_set_vpp(int vpp) 140 { 141 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN); 142 if (vpp) 143 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN); 144 else 145 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN); 146 } 147 148 static struct flash_platform_data collie_flash_data = { 149 .map_name = "cfi_probe", 150 .set_vpp = collie_set_vpp, 151 .parts = collie_partitions, 152 .nr_parts = ARRAY_SIZE(collie_partitions), 153 }; 154 155 static struct resource collie_flash_resources[] = { 156 { 157 .start = SA1100_CS0_PHYS, 158 .end = SA1100_CS0_PHYS + SZ_32M - 1, 159 .flags = IORESOURCE_MEM, 160 } 161 }; 162 163 static void __init collie_init(void) 164 { 165 int ret = 0; 166 167 /* cpu initialize */ 168 GAFR = ( GPIO_SSP_TXD | \ 169 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \ 170 GPIO_32_768kHz ); 171 172 GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \ 173 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \ 174 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \ 175 GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz ); 176 GPLR = GPIO_GPIO18; 177 178 // PPC pin setting 179 PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \ 180 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \ 181 PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM ); 182 183 PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 ); 184 185 GAFR |= GPIO_32_768kHz; 186 GPDR |= GPIO_32_768kHz; 187 TUCR = TUCR_32_768kHz; 188 189 platform_scoop_config = &collie_pcmcia_config; 190 191 ret = platform_add_devices(devices, ARRAY_SIZE(devices)); 192 if (ret) { 193 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n"); 194 } 195 196 sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources, 197 ARRAY_SIZE(collie_flash_resources)); 198 sa11x0_set_mcp_data(&collie_mcp_data); 199 200 sharpsl_save_param(); 201 } 202 203 static struct map_desc collie_io_desc[] __initdata = { 204 { /* 32M main flash (cs0) */ 205 .virtual = 0xe8000000, 206 .pfn = __phys_to_pfn(0x00000000), 207 .length = 0x02000000, 208 .type = MT_DEVICE 209 }, { /* 32M boot flash (cs1) */ 210 .virtual = 0xea000000, 211 .pfn = __phys_to_pfn(0x08000000), 212 .length = 0x02000000, 213 .type = MT_DEVICE 214 } 215 }; 216 217 static void __init collie_map_io(void) 218 { 219 sa1100_map_io(); 220 iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc)); 221 } 222 223 MACHINE_START(COLLIE, "Sharp-Collie") 224 .phys_io = 0x80000000, 225 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, 226 .map_io = collie_map_io, 227 .init_irq = sa1100_init_irq, 228 .timer = &sa1100_timer, 229 .init_machine = collie_init, 230 MACHINE_END 231