spear300.c (4496B)
1/* 2 * arch/arm/mach-spear3xx/spear300.c 3 * 4 * SPEAr300 machine source file 5 * 6 * Copyright (C) 2009-2012 ST Microelectronics 7 * Viresh Kumar <vireshk@kernel.org> 8 * 9 * This file is licensed under the terms of the GNU General Public 10 * License version 2. This program is licensed "as is" without any 11 * warranty of any kind, whether express or implied. 12 */ 13 14#define pr_fmt(fmt) "SPEAr300: " fmt 15 16#include <linux/amba/pl08x.h> 17#include <linux/of_platform.h> 18#include <asm/mach/arch.h> 19#include "generic.h" 20#include "spear.h" 21 22/* DMAC platform data's slave info */ 23struct pl08x_channel_data spear300_dma_info[] = { 24 { 25 .bus_id = "uart0_rx", 26 .min_signal = 2, 27 .max_signal = 2, 28 .muxval = 0, 29 .periph_buses = PL08X_AHB1, 30 }, { 31 .bus_id = "uart0_tx", 32 .min_signal = 3, 33 .max_signal = 3, 34 .muxval = 0, 35 .periph_buses = PL08X_AHB1, 36 }, { 37 .bus_id = "ssp0_rx", 38 .min_signal = 8, 39 .max_signal = 8, 40 .muxval = 0, 41 .periph_buses = PL08X_AHB1, 42 }, { 43 .bus_id = "ssp0_tx", 44 .min_signal = 9, 45 .max_signal = 9, 46 .muxval = 0, 47 .periph_buses = PL08X_AHB1, 48 }, { 49 .bus_id = "i2c_rx", 50 .min_signal = 10, 51 .max_signal = 10, 52 .muxval = 0, 53 .periph_buses = PL08X_AHB1, 54 }, { 55 .bus_id = "i2c_tx", 56 .min_signal = 11, 57 .max_signal = 11, 58 .muxval = 0, 59 .periph_buses = PL08X_AHB1, 60 }, { 61 .bus_id = "irda", 62 .min_signal = 12, 63 .max_signal = 12, 64 .muxval = 0, 65 .periph_buses = PL08X_AHB1, 66 }, { 67 .bus_id = "adc", 68 .min_signal = 13, 69 .max_signal = 13, 70 .muxval = 0, 71 .periph_buses = PL08X_AHB1, 72 }, { 73 .bus_id = "to_jpeg", 74 .min_signal = 14, 75 .max_signal = 14, 76 .muxval = 0, 77 .periph_buses = PL08X_AHB1, 78 }, { 79 .bus_id = "from_jpeg", 80 .min_signal = 15, 81 .max_signal = 15, 82 .muxval = 0, 83 .periph_buses = PL08X_AHB1, 84 }, { 85 .bus_id = "ras0_rx", 86 .min_signal = 0, 87 .max_signal = 0, 88 .muxval = 1, 89 .periph_buses = PL08X_AHB1, 90 }, { 91 .bus_id = "ras0_tx", 92 .min_signal = 1, 93 .max_signal = 1, 94 .muxval = 1, 95 .periph_buses = PL08X_AHB1, 96 }, { 97 .bus_id = "ras1_rx", 98 .min_signal = 2, 99 .max_signal = 2, 100 .muxval = 1, 101 .periph_buses = PL08X_AHB1, 102 }, { 103 .bus_id = "ras1_tx", 104 .min_signal = 3, 105 .max_signal = 3, 106 .muxval = 1, 107 .periph_buses = PL08X_AHB1, 108 }, { 109 .bus_id = "ras2_rx", 110 .min_signal = 4, 111 .max_signal = 4, 112 .muxval = 1, 113 .periph_buses = PL08X_AHB1, 114 }, { 115 .bus_id = "ras2_tx", 116 .min_signal = 5, 117 .max_signal = 5, 118 .muxval = 1, 119 .periph_buses = PL08X_AHB1, 120 }, { 121 .bus_id = "ras3_rx", 122 .min_signal = 6, 123 .max_signal = 6, 124 .muxval = 1, 125 .periph_buses = PL08X_AHB1, 126 }, { 127 .bus_id = "ras3_tx", 128 .min_signal = 7, 129 .max_signal = 7, 130 .muxval = 1, 131 .periph_buses = PL08X_AHB1, 132 }, { 133 .bus_id = "ras4_rx", 134 .min_signal = 8, 135 .max_signal = 8, 136 .muxval = 1, 137 .periph_buses = PL08X_AHB1, 138 }, { 139 .bus_id = "ras4_tx", 140 .min_signal = 9, 141 .max_signal = 9, 142 .muxval = 1, 143 .periph_buses = PL08X_AHB1, 144 }, { 145 .bus_id = "ras5_rx", 146 .min_signal = 10, 147 .max_signal = 10, 148 .muxval = 1, 149 .periph_buses = PL08X_AHB1, 150 }, { 151 .bus_id = "ras5_tx", 152 .min_signal = 11, 153 .max_signal = 11, 154 .muxval = 1, 155 .periph_buses = PL08X_AHB1, 156 }, { 157 .bus_id = "ras6_rx", 158 .min_signal = 12, 159 .max_signal = 12, 160 .muxval = 1, 161 .periph_buses = PL08X_AHB1, 162 }, { 163 .bus_id = "ras6_tx", 164 .min_signal = 13, 165 .max_signal = 13, 166 .muxval = 1, 167 .periph_buses = PL08X_AHB1, 168 }, { 169 .bus_id = "ras7_rx", 170 .min_signal = 14, 171 .max_signal = 14, 172 .muxval = 1, 173 .periph_buses = PL08X_AHB1, 174 }, { 175 .bus_id = "ras7_tx", 176 .min_signal = 15, 177 .max_signal = 15, 178 .muxval = 1, 179 .periph_buses = PL08X_AHB1, 180 }, 181}; 182 183/* Add SPEAr300 auxdata to pass platform data */ 184static struct of_dev_auxdata spear300_auxdata_lookup[] __initdata = { 185 OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL, 186 &pl022_plat_data), 187 OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL, 188 &pl080_plat_data), 189 {} 190}; 191 192static void __init spear300_dt_init(void) 193{ 194 pl080_plat_data.slave_channels = spear300_dma_info; 195 pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear300_dma_info); 196 197 of_platform_default_populate(NULL, spear300_auxdata_lookup, NULL); 198} 199 200static const char * const spear300_dt_board_compat[] = { 201 "st,spear300", 202 "st,spear300-evb", 203 NULL, 204}; 205 206static void __init spear300_map_io(void) 207{ 208 spear3xx_map_io(); 209} 210 211DT_MACHINE_START(SPEAR300_DT, "ST SPEAr300 SoC with Flattened Device Tree") 212 .map_io = spear300_map_io, 213 .init_time = spear3xx_timer_init, 214 .init_machine = spear300_dt_init, 215 .restart = spear_restart, 216 .dt_compat = spear300_dt_board_compat, 217MACHINE_END