1 /* 2 * linux/arch/arm/mach-sa1100/jornada720.c 3 */ 4 5 #include <linux/init.h> 6 #include <linux/kernel.h> 7 #include <linux/tty.h> 8 #include <linux/delay.h> 9 #include <linux/platform_device.h> 10 #include <linux/ioport.h> 11 #include <linux/mtd/mtd.h> 12 #include <linux/mtd/partitions.h> 13 14 #include <asm/hardware.h> 15 #include <asm/hardware/sa1111.h> 16 #include <asm/irq.h> 17 #include <asm/mach-types.h> 18 #include <asm/setup.h> 19 20 #include <asm/mach/arch.h> 21 #include <asm/mach/flash.h> 22 #include <asm/mach/map.h> 23 #include <asm/mach/serial_sa1100.h> 24 25 #include "generic.h" 26 27 28 #define JORTUCR_VAL 0x20000400 29 30 static struct resource sa1111_resources[] = { 31 [0] = { 32 .start = 0x40000000, 33 .end = 0x40001fff, 34 .flags = IORESOURCE_MEM, 35 }, 36 [1] = { 37 .start = IRQ_GPIO1, 38 .end = IRQ_GPIO1, 39 .flags = IORESOURCE_IRQ, 40 }, 41 }; 42 43 static u64 sa1111_dmamask = 0xffffffffUL; 44 45 static struct platform_device sa1111_device = { 46 .name = "sa1111", 47 .id = 0, 48 .dev = { 49 .dma_mask = &sa1111_dmamask, 50 .coherent_dma_mask = 0xffffffff, 51 }, 52 .num_resources = ARRAY_SIZE(sa1111_resources), 53 .resource = sa1111_resources, 54 }; 55 56 static struct platform_device *devices[] __initdata = { 57 &sa1111_device, 58 }; 59 60 static int __init jornada720_init(void) 61 { 62 int ret = -ENODEV; 63 64 if (machine_is_jornada720()) { 65 GPDR |= GPIO_GPIO20; 66 TUCR = JORTUCR_VAL; /* set the oscillator out to the SA-1101 */ 67 68 GPSR = GPIO_GPIO20; 69 udelay(1); 70 GPCR = GPIO_GPIO20; 71 udelay(1); 72 GPSR = GPIO_GPIO20; 73 udelay(20); 74 75 /* LDD4 is speaker, LDD3 is microphone */ 76 PPSR &= ~(PPC_LDD3 | PPC_LDD4); 77 PPDR |= PPC_LDD3 | PPC_LDD4; 78 79 ret = platform_add_devices(devices, ARRAY_SIZE(devices)); 80 } 81 return ret; 82 } 83 84 arch_initcall(jornada720_init); 85 86 static struct map_desc jornada720_io_desc[] __initdata = { 87 { /* Epson registers */ 88 .virtual = 0xf0000000, 89 .pfn = __phys_to_pfn(0x48000000), 90 .length = 0x00100000, 91 .type = MT_DEVICE 92 }, { /* Epson frame buffer */ 93 .virtual = 0xf1000000, 94 .pfn = __phys_to_pfn(0x48200000), 95 .length = 0x00100000, 96 .type = MT_DEVICE 97 }, { /* SA-1111 */ 98 .virtual = 0xf4000000, 99 .pfn = __phys_to_pfn(0x40000000), 100 .length = 0x00100000, 101 .type = MT_DEVICE 102 } 103 }; 104 105 static void __init jornada720_map_io(void) 106 { 107 sa1100_map_io(); 108 iotable_init(jornada720_io_desc, ARRAY_SIZE(jornada720_io_desc)); 109 110 sa1100_register_uart(0, 3); 111 sa1100_register_uart(1, 1); 112 } 113 114 static struct mtd_partition jornada720_partitions[] = { 115 { 116 .name = "JORNADA720 boot firmware", 117 .size = 0x00040000, 118 .offset = 0, 119 .mask_flags = MTD_WRITEABLE, /* force read-only */ 120 }, { 121 .name = "JORNADA720 kernel", 122 .size = 0x000c0000, 123 .offset = 0x00040000, 124 }, { 125 .name = "JORNADA720 params", 126 .size = 0x00040000, 127 .offset = 0x00100000, 128 }, { 129 .name = "JORNADA720 initrd", 130 .size = 0x00100000, 131 .offset = 0x00140000, 132 }, { 133 .name = "JORNADA720 root cramfs", 134 .size = 0x00300000, 135 .offset = 0x00240000, 136 }, { 137 .name = "JORNADA720 usr cramfs", 138 .size = 0x00800000, 139 .offset = 0x00540000, 140 }, { 141 .name = "JORNADA720 usr local", 142 .size = 0, /* will expand to the end of the flash */ 143 .offset = 0x00d00000, 144 } 145 }; 146 147 static void jornada720_set_vpp(int vpp) 148 { 149 if (vpp) 150 PPSR |= 0x80; 151 else 152 PPSR &= ~0x80; 153 PPDR |= 0x80; 154 } 155 156 static struct flash_platform_data jornada720_flash_data = { 157 .map_name = "cfi_probe", 158 .set_vpp = jornada720_set_vpp, 159 .parts = jornada720_partitions, 160 .nr_parts = ARRAY_SIZE(jornada720_partitions), 161 }; 162 163 static struct resource jornada720_flash_resource = { 164 .start = SA1100_CS0_PHYS, 165 .end = SA1100_CS0_PHYS + SZ_32M - 1, 166 .flags = IORESOURCE_MEM, 167 }; 168 169 static void __init jornada720_mach_init(void) 170 { 171 sa11x0_set_flash_data(&jornada720_flash_data, &jornada720_flash_resource, 1); 172 } 173 174 MACHINE_START(JORNADA720, "HP Jornada 720") 175 /* Maintainer: Michael Gernoth <michael@gernoth.net> */ 176 .phys_io = 0x80000000, 177 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, 178 .boot_params = 0xc0000100, 179 .map_io = jornada720_map_io, 180 .init_irq = sa1100_init_irq, 181 .timer = &sa1100_timer, 182 .init_machine = jornada720_mach_init, 183 MACHINE_END 184