arch/arm/mach-spear/spear310.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * arch/arm/mach-spear3xx/spear310.c
   4  *
   5  * SPEAr310 machine source file
   6  *
   7  * Copyright (C) 2009-2012 ST Microelectronics
   8  * Viresh Kumar <vireshk@kernel.org>
   9  */
  10
  11 #define pr_fmt(fmt) "SPEAr310: " fmt
  12
  13 #include <linux/amba/pl08x.h>
  14 #include <linux/amba/serial.h>
  15 #include <linux/of_platform.h>
  16 #include <asm/mach/arch.h>
  17 #include "generic.h"
  18 #include "spear.h"
  19
  20 #define SPEAR310_UART1_BASE             UL(0xB2000000)
  21 #define SPEAR310_UART2_BASE             UL(0xB2080000)
  22 #define SPEAR310_UART3_BASE             UL(0xB2100000)
  23 #define SPEAR310_UART4_BASE             UL(0xB2180000)
  24 #define SPEAR310_UART5_BASE             UL(0xB2200000)
  25
  26 /* DMAC platform data's slave info */
  27 struct pl08x_channel_data spear310_dma_info[] = {
  28         {
  29                 .bus_id = "uart0_rx",
  30                 .min_signal = 2,
  31                 .max_signal = 2,
  32                 .muxval = 0,
  33                 .periph_buses = PL08X_AHB1,
  34         }, {
  35                 .bus_id = "uart0_tx",
  36                 .min_signal = 3,
  37                 .max_signal = 3,
  38                 .muxval = 0,
  39                 .periph_buses = PL08X_AHB1,
  40         }, {
  41                 .bus_id = "ssp0_rx",
  42                 .min_signal = 8,
  43                 .max_signal = 8,
  44                 .muxval = 0,
  45                 .periph_buses = PL08X_AHB1,
  46         }, {
  47                 .bus_id = "ssp0_tx",
  48                 .min_signal = 9,
  49                 .max_signal = 9,
  50                 .muxval = 0,
  51                 .periph_buses = PL08X_AHB1,
  52         }, {
  53                 .bus_id = "i2c_rx",
  54                 .min_signal = 10,
  55                 .max_signal = 10,
  56                 .muxval = 0,
  57                 .periph_buses = PL08X_AHB1,
  58         }, {
  59                 .bus_id = "i2c_tx",
  60                 .min_signal = 11,
  61                 .max_signal = 11,
  62                 .muxval = 0,
  63                 .periph_buses = PL08X_AHB1,
  64         }, {
  65                 .bus_id = "irda",
  66                 .min_signal = 12,
  67                 .max_signal = 12,
  68                 .muxval = 0,
  69                 .periph_buses = PL08X_AHB1,
  70         }, {
  71                 .bus_id = "adc",
  72                 .min_signal = 13,
  73                 .max_signal = 13,
  74                 .muxval = 0,
  75                 .periph_buses = PL08X_AHB1,
  76         }, {
  77                 .bus_id = "to_jpeg",
  78                 .min_signal = 14,
  79                 .max_signal = 14,
  80                 .muxval = 0,
  81                 .periph_buses = PL08X_AHB1,
  82         }, {
  83                 .bus_id = "from_jpeg",
  84                 .min_signal = 15,
  85                 .max_signal = 15,
  86                 .muxval = 0,
  87                 .periph_buses = PL08X_AHB1,
  88         }, {
  89                 .bus_id = "uart1_rx",
  90                 .min_signal = 0,
  91                 .max_signal = 0,
  92                 .muxval = 1,
  93                 .periph_buses = PL08X_AHB1,
  94         }, {
  95                 .bus_id = "uart1_tx",
  96                 .min_signal = 1,
  97                 .max_signal = 1,
  98                 .muxval = 1,
  99                 .periph_buses = PL08X_AHB1,
 100         }, {
 101                 .bus_id = "uart2_rx",
 102                 .min_signal = 2,
 103                 .max_signal = 2,
 104                 .muxval = 1,
 105                 .periph_buses = PL08X_AHB1,
 106         }, {
 107                 .bus_id = "uart2_tx",
 108                 .min_signal = 3,
 109                 .max_signal = 3,
 110                 .muxval = 1,
 111                 .periph_buses = PL08X_AHB1,
 112         }, {
 113                 .bus_id = "uart3_rx",
 114                 .min_signal = 4,
 115                 .max_signal = 4,
 116                 .muxval = 1,
 117                 .periph_buses = PL08X_AHB1,
 118         }, {
 119                 .bus_id = "uart3_tx",
 120                 .min_signal = 5,
 121                 .max_signal = 5,
 122                 .muxval = 1,
 123                 .periph_buses = PL08X_AHB1,
 124         }, {
 125                 .bus_id = "uart4_rx",
 126                 .min_signal = 6,
 127                 .max_signal = 6,
 128                 .muxval = 1,
 129                 .periph_buses = PL08X_AHB1,
 130         }, {
 131                 .bus_id = "uart4_tx",
 132                 .min_signal = 7,
 133                 .max_signal = 7,
 134                 .muxval = 1,
 135                 .periph_buses = PL08X_AHB1,
 136         }, {
 137                 .bus_id = "uart5_rx",
 138                 .min_signal = 8,
 139                 .max_signal = 8,
 140                 .muxval = 1,
 141                 .periph_buses = PL08X_AHB1,
 142         }, {
 143                 .bus_id = "uart5_tx",
 144                 .min_signal = 9,
 145                 .max_signal = 9,
 146                 .muxval = 1,
 147                 .periph_buses = PL08X_AHB1,
 148         }, {
 149                 .bus_id = "ras5_rx",
 150                 .min_signal = 10,
 151                 .max_signal = 10,
 152                 .muxval = 1,
 153                 .periph_buses = PL08X_AHB1,
 154         }, {
 155                 .bus_id = "ras5_tx",
 156                 .min_signal = 11,
 157                 .max_signal = 11,
 158                 .muxval = 1,
 159                 .periph_buses = PL08X_AHB1,
 160         }, {
 161                 .bus_id = "ras6_rx",
 162                 .min_signal = 12,
 163                 .max_signal = 12,
 164                 .muxval = 1,
 165                 .periph_buses = PL08X_AHB1,
 166         }, {
 167                 .bus_id = "ras6_tx",
 168                 .min_signal = 13,
 169                 .max_signal = 13,
 170                 .muxval = 1,
 171                 .periph_buses = PL08X_AHB1,
 172         }, {
 173                 .bus_id = "ras7_rx",
 174                 .min_signal = 14,
 175                 .max_signal = 14,
 176                 .muxval = 1,
 177                 .periph_buses = PL08X_AHB1,
 178         }, {
 179                 .bus_id = "ras7_tx",
 180                 .min_signal = 15,
 181                 .max_signal = 15,
 182                 .muxval = 1,
 183                 .periph_buses = PL08X_AHB1,
 184         },
 185 };
 186
 187 /* uart devices plat data */
 188 static struct amba_pl011_data spear310_uart_data[] = {
 189         {
 190                 .dma_filter = pl08x_filter_id,
 191                 .dma_tx_param = "uart1_tx",
 192                 .dma_rx_param = "uart1_rx",
 193         }, {
 194                 .dma_filter = pl08x_filter_id,
 195                 .dma_tx_param = "uart2_tx",
 196                 .dma_rx_param = "uart2_rx",
 197         }, {
 198                 .dma_filter = pl08x_filter_id,
 199                 .dma_tx_param = "uart3_tx",
 200                 .dma_rx_param = "uart3_rx",
 201         }, {
 202                 .dma_filter = pl08x_filter_id,
 203                 .dma_tx_param = "uart4_tx",
 204                 .dma_rx_param = "uart4_rx",
 205         }, {
 206                 .dma_filter = pl08x_filter_id,
 207                 .dma_tx_param = "uart5_tx",
 208                 .dma_rx_param = "uart5_rx",
 209         },
 210 };
 211
 212 /* Add SPEAr310 auxdata to pass platform data */
 213 static struct of_dev_auxdata spear310_auxdata_lookup[] __initdata = {
 214         OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL,
 215                         &pl022_plat_data),
 216         OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL,
 217                         &pl080_plat_data),
 218         OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART1_BASE, NULL,
 219                         &spear310_uart_data[0]),
 220         OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART2_BASE, NULL,
 221                         &spear310_uart_data[1]),
 222         OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART3_BASE, NULL,
 223                         &spear310_uart_data[2]),
 224         OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART4_BASE, NULL,
 225                         &spear310_uart_data[3]),
 226         OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART5_BASE, NULL,
 227                         &spear310_uart_data[4]),
 228         {}
 229 };
 230
 231 static void __init spear310_dt_init(void)
 232 {
 233         pl080_plat_data.slave_channels = spear310_dma_info;
 234         pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear310_dma_info);
 235
 236         of_platform_default_populate(NULL, spear310_auxdata_lookup, NULL);
 237 }
 238
 239 static const char * const spear310_dt_board_compat[] = {
 240         "st,spear310",
 241         "st,spear310-evb",
 242         NULL,
 243 };
 244
 245 static void __init spear310_map_io(void)
 246 {
 247         spear3xx_map_io();
 248 }
 249
 250 DT_MACHINE_START(SPEAR310_DT, "ST SPEAr310 SoC with Flattened Device Tree")
 251         .map_io         =       spear310_map_io,
 252         .init_time      =       spear3xx_timer_init,
 253         .init_machine   =       spear310_dt_init,
 254         .restart        =       spear_restart,
 255         .dt_compat      =       spear310_dt_board_compat,
 256 MACHINE_END