arch/arm/mach-spear/spear300.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * arch/arm/mach-spear3xx/spear300.c
   4  *
   5  * SPEAr300 machine source file
   6  *
   7  * Copyright (C) 2009-2012 ST Microelectronics
   8  * Viresh Kumar <vireshk@kernel.org>
   9  */
  10
  11 #define pr_fmt(fmt) "SPEAr300: " fmt
  12
  13 #include <linux/amba/pl08x.h>
  14 #include <linux/of_platform.h>
  15 #include <asm/mach/arch.h>
  16 #include "generic.h"
  17 #include "spear.h"
  18
  19 /* DMAC platform data's slave info */
  20 struct pl08x_channel_data spear300_dma_info[] = {
  21         {
  22                 .bus_id = "uart0_rx",
  23                 .min_signal = 2,
  24                 .max_signal = 2,
  25                 .muxval = 0,
  26                 .periph_buses = PL08X_AHB1,
  27         }, {
  28                 .bus_id = "uart0_tx",
  29                 .min_signal = 3,
  30                 .max_signal = 3,
  31                 .muxval = 0,
  32                 .periph_buses = PL08X_AHB1,
  33         }, {
  34                 .bus_id = "ssp0_rx",
  35                 .min_signal = 8,
  36                 .max_signal = 8,
  37                 .muxval = 0,
  38                 .periph_buses = PL08X_AHB1,
  39         }, {
  40                 .bus_id = "ssp0_tx",
  41                 .min_signal = 9,
  42                 .max_signal = 9,
  43                 .muxval = 0,
  44                 .periph_buses = PL08X_AHB1,
  45         }, {
  46                 .bus_id = "i2c_rx",
  47                 .min_signal = 10,
  48                 .max_signal = 10,
  49                 .muxval = 0,
  50                 .periph_buses = PL08X_AHB1,
  51         }, {
  52                 .bus_id = "i2c_tx",
  53                 .min_signal = 11,
  54                 .max_signal = 11,
  55                 .muxval = 0,
  56                 .periph_buses = PL08X_AHB1,
  57         }, {
  58                 .bus_id = "irda",
  59                 .min_signal = 12,
  60                 .max_signal = 12,
  61                 .muxval = 0,
  62                 .periph_buses = PL08X_AHB1,
  63         }, {
  64                 .bus_id = "adc",
  65                 .min_signal = 13,
  66                 .max_signal = 13,
  67                 .muxval = 0,
  68                 .periph_buses = PL08X_AHB1,
  69         }, {
  70                 .bus_id = "to_jpeg",
  71                 .min_signal = 14,
  72                 .max_signal = 14,
  73                 .muxval = 0,
  74                 .periph_buses = PL08X_AHB1,
  75         }, {
  76                 .bus_id = "from_jpeg",
  77                 .min_signal = 15,
  78                 .max_signal = 15,
  79                 .muxval = 0,
  80                 .periph_buses = PL08X_AHB1,
  81         }, {
  82                 .bus_id = "ras0_rx",
  83                 .min_signal = 0,
  84                 .max_signal = 0,
  85                 .muxval = 1,
  86                 .periph_buses = PL08X_AHB1,
  87         }, {
  88                 .bus_id = "ras0_tx",
  89                 .min_signal = 1,
  90                 .max_signal = 1,
  91                 .muxval = 1,
  92                 .periph_buses = PL08X_AHB1,
  93         }, {
  94                 .bus_id = "ras1_rx",
  95                 .min_signal = 2,
  96                 .max_signal = 2,
  97                 .muxval = 1,
  98                 .periph_buses = PL08X_AHB1,
  99         }, {
 100                 .bus_id = "ras1_tx",
 101                 .min_signal = 3,
 102                 .max_signal = 3,
 103                 .muxval = 1,
 104                 .periph_buses = PL08X_AHB1,
 105         }, {
 106                 .bus_id = "ras2_rx",
 107                 .min_signal = 4,
 108                 .max_signal = 4,
 109                 .muxval = 1,
 110                 .periph_buses = PL08X_AHB1,
 111         }, {
 112                 .bus_id = "ras2_tx",
 113                 .min_signal = 5,
 114                 .max_signal = 5,
 115                 .muxval = 1,
 116                 .periph_buses = PL08X_AHB1,
 117         }, {
 118                 .bus_id = "ras3_rx",
 119                 .min_signal = 6,
 120                 .max_signal = 6,
 121                 .muxval = 1,
 122                 .periph_buses = PL08X_AHB1,
 123         }, {
 124                 .bus_id = "ras3_tx",
 125                 .min_signal = 7,
 126                 .max_signal = 7,
 127                 .muxval = 1,
 128                 .periph_buses = PL08X_AHB1,
 129         }, {
 130                 .bus_id = "ras4_rx",
 131                 .min_signal = 8,
 132                 .max_signal = 8,
 133                 .muxval = 1,
 134                 .periph_buses = PL08X_AHB1,
 135         }, {
 136                 .bus_id = "ras4_tx",
 137                 .min_signal = 9,
 138                 .max_signal = 9,
 139                 .muxval = 1,
 140                 .periph_buses = PL08X_AHB1,
 141         }, {
 142                 .bus_id = "ras5_rx",
 143                 .min_signal = 10,
 144                 .max_signal = 10,
 145                 .muxval = 1,
 146                 .periph_buses = PL08X_AHB1,
 147         }, {
 148                 .bus_id = "ras5_tx",
 149                 .min_signal = 11,
 150                 .max_signal = 11,
 151                 .muxval = 1,
 152                 .periph_buses = PL08X_AHB1,
 153         }, {
 154                 .bus_id = "ras6_rx",
 155                 .min_signal = 12,
 156                 .max_signal = 12,
 157                 .muxval = 1,
 158                 .periph_buses = PL08X_AHB1,
 159         }, {
 160                 .bus_id = "ras6_tx",
 161                 .min_signal = 13,
 162                 .max_signal = 13,
 163                 .muxval = 1,
 164                 .periph_buses = PL08X_AHB1,
 165         }, {
 166                 .bus_id = "ras7_rx",
 167                 .min_signal = 14,
 168                 .max_signal = 14,
 169                 .muxval = 1,
 170                 .periph_buses = PL08X_AHB1,
 171         }, {
 172                 .bus_id = "ras7_tx",
 173                 .min_signal = 15,
 174                 .max_signal = 15,
 175                 .muxval = 1,
 176                 .periph_buses = PL08X_AHB1,
 177         },
 178 };
 179
 180 /* Add SPEAr300 auxdata to pass platform data */
 181 static struct of_dev_auxdata spear300_auxdata_lookup[] __initdata = {
 182         OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL,
 183                         &pl022_plat_data),
 184         OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL,
 185                         &pl080_plat_data),
 186         {}
 187 };
 188
 189 static void __init spear300_dt_init(void)
 190 {
 191         pl080_plat_data.slave_channels = spear300_dma_info;
 192         pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear300_dma_info);
 193
 194         of_platform_default_populate(NULL, spear300_auxdata_lookup, NULL);
 195 }
 196
 197 static const char * const spear300_dt_board_compat[] = {
 198         "st,spear300",
 199         "st,spear300-evb",
 200         NULL,
 201 };
 202
 203 static void __init spear300_map_io(void)
 204 {
 205         spear3xx_map_io();
 206 }
 207
 208 DT_MACHINE_START(SPEAR300_DT, "ST SPEAr300 SoC with Flattened Device Tree")
 209         .map_io         =       spear300_map_io,
 210         .init_time      =       spear3xx_timer_init,
 211         .init_machine   =       spear300_dt_init,
 212         .restart        =       spear_restart,
 213         .dt_compat      =       spear300_dt_board_compat,
 214 MACHINE_END