arch/arm/mach-spear3xx/spear300.c

   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 <viresh.kumar@st.com>
   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/hardware/vic.h>
  19 #include <asm/mach/arch.h>
  20 #include <plat/shirq.h>
  21 #include <mach/generic.h>
  22 #include <mach/hardware.h>
  23
  24 /* spear3xx shared irq */
  25 static struct shirq_dev_config shirq_ras1_config[] = {
  26         {
  27                 .virq = SPEAR300_VIRQ_IT_PERS_S,
  28                 .enb_mask = SPEAR300_IT_PERS_S_IRQ_MASK,
  29                 .status_mask = SPEAR300_IT_PERS_S_IRQ_MASK,
  30         }, {
  31                 .virq = SPEAR300_VIRQ_IT_CHANGE_S,
  32                 .enb_mask = SPEAR300_IT_CHANGE_S_IRQ_MASK,
  33                 .status_mask = SPEAR300_IT_CHANGE_S_IRQ_MASK,
  34         }, {
  35                 .virq = SPEAR300_VIRQ_I2S,
  36                 .enb_mask = SPEAR300_I2S_IRQ_MASK,
  37                 .status_mask = SPEAR300_I2S_IRQ_MASK,
  38         }, {
  39                 .virq = SPEAR300_VIRQ_TDM,
  40                 .enb_mask = SPEAR300_TDM_IRQ_MASK,
  41                 .status_mask = SPEAR300_TDM_IRQ_MASK,
  42         }, {
  43                 .virq = SPEAR300_VIRQ_CAMERA_L,
  44                 .enb_mask = SPEAR300_CAMERA_L_IRQ_MASK,
  45                 .status_mask = SPEAR300_CAMERA_L_IRQ_MASK,
  46         }, {
  47                 .virq = SPEAR300_VIRQ_CAMERA_F,
  48                 .enb_mask = SPEAR300_CAMERA_F_IRQ_MASK,
  49                 .status_mask = SPEAR300_CAMERA_F_IRQ_MASK,
  50         }, {
  51                 .virq = SPEAR300_VIRQ_CAMERA_V,
  52                 .enb_mask = SPEAR300_CAMERA_V_IRQ_MASK,
  53                 .status_mask = SPEAR300_CAMERA_V_IRQ_MASK,
  54         }, {
  55                 .virq = SPEAR300_VIRQ_KEYBOARD,
  56                 .enb_mask = SPEAR300_KEYBOARD_IRQ_MASK,
  57                 .status_mask = SPEAR300_KEYBOARD_IRQ_MASK,
  58         }, {
  59                 .virq = SPEAR300_VIRQ_GPIO1,
  60                 .enb_mask = SPEAR300_GPIO1_IRQ_MASK,
  61                 .status_mask = SPEAR300_GPIO1_IRQ_MASK,
  62         },
  63 };
  64
  65 static struct spear_shirq shirq_ras1 = {
  66         .irq = SPEAR3XX_IRQ_GEN_RAS_1,
  67         .dev_config = shirq_ras1_config,
  68         .dev_count = ARRAY_SIZE(shirq_ras1_config),
  69         .regs = {
  70                 .enb_reg = SPEAR300_INT_ENB_MASK_REG,
  71                 .status_reg = SPEAR300_INT_STS_MASK_REG,
  72                 .status_reg_mask = SPEAR300_SHIRQ_RAS1_MASK,
  73                 .clear_reg = -1,
  74         },
  75 };
  76
  77 /* DMAC platform data's slave info */
  78 struct pl08x_channel_data spear300_dma_info[] = {
  79         {
  80                 .bus_id = "uart0_rx",
  81                 .min_signal = 2,
  82                 .max_signal = 2,
  83                 .muxval = 0,
  84                 .cctl = 0,
  85                 .periph_buses = PL08X_AHB1,
  86         }, {
  87                 .bus_id = "uart0_tx",
  88                 .min_signal = 3,
  89                 .max_signal = 3,
  90                 .muxval = 0,
  91                 .cctl = 0,
  92                 .periph_buses = PL08X_AHB1,
  93         }, {
  94                 .bus_id = "ssp0_rx",
  95                 .min_signal = 8,
  96                 .max_signal = 8,
  97                 .muxval = 0,
  98                 .cctl = 0,
  99                 .periph_buses = PL08X_AHB1,
 100         }, {
 101                 .bus_id = "ssp0_tx",
 102                 .min_signal = 9,
 103                 .max_signal = 9,
 104                 .muxval = 0,
 105                 .cctl = 0,
 106                 .periph_buses = PL08X_AHB1,
 107         }, {
 108                 .bus_id = "i2c_rx",
 109                 .min_signal = 10,
 110                 .max_signal = 10,
 111                 .muxval = 0,
 112                 .cctl = 0,
 113                 .periph_buses = PL08X_AHB1,
 114         }, {
 115                 .bus_id = "i2c_tx",
 116                 .min_signal = 11,
 117                 .max_signal = 11,
 118                 .muxval = 0,
 119                 .cctl = 0,
 120                 .periph_buses = PL08X_AHB1,
 121         }, {
 122                 .bus_id = "irda",
 123                 .min_signal = 12,
 124                 .max_signal = 12,
 125                 .muxval = 0,
 126                 .cctl = 0,
 127                 .periph_buses = PL08X_AHB1,
 128         }, {
 129                 .bus_id = "adc",
 130                 .min_signal = 13,
 131                 .max_signal = 13,
 132                 .muxval = 0,
 133                 .cctl = 0,
 134                 .periph_buses = PL08X_AHB1,
 135         }, {
 136                 .bus_id = "to_jpeg",
 137                 .min_signal = 14,
 138                 .max_signal = 14,
 139                 .muxval = 0,
 140                 .cctl = 0,
 141                 .periph_buses = PL08X_AHB1,
 142         }, {
 143                 .bus_id = "from_jpeg",
 144                 .min_signal = 15,
 145                 .max_signal = 15,
 146                 .muxval = 0,
 147                 .cctl = 0,
 148                 .periph_buses = PL08X_AHB1,
 149         }, {
 150                 .bus_id = "ras0_rx",
 151                 .min_signal = 0,
 152                 .max_signal = 0,
 153                 .muxval = 1,
 154                 .cctl = 0,
 155                 .periph_buses = PL08X_AHB1,
 156         }, {
 157                 .bus_id = "ras0_tx",
 158                 .min_signal = 1,
 159                 .max_signal = 1,
 160                 .muxval = 1,
 161                 .cctl = 0,
 162                 .periph_buses = PL08X_AHB1,
 163         }, {
 164                 .bus_id = "ras1_rx",
 165                 .min_signal = 2,
 166                 .max_signal = 2,
 167                 .muxval = 1,
 168                 .cctl = 0,
 169                 .periph_buses = PL08X_AHB1,
 170         }, {
 171                 .bus_id = "ras1_tx",
 172                 .min_signal = 3,
 173                 .max_signal = 3,
 174                 .muxval = 1,
 175                 .cctl = 0,
 176                 .periph_buses = PL08X_AHB1,
 177         }, {
 178                 .bus_id = "ras2_rx",
 179                 .min_signal = 4,
 180                 .max_signal = 4,
 181                 .muxval = 1,
 182                 .cctl = 0,
 183                 .periph_buses = PL08X_AHB1,
 184         }, {
 185                 .bus_id = "ras2_tx",
 186                 .min_signal = 5,
 187                 .max_signal = 5,
 188                 .muxval = 1,
 189                 .cctl = 0,
 190                 .periph_buses = PL08X_AHB1,
 191         }, {
 192                 .bus_id = "ras3_rx",
 193                 .min_signal = 6,
 194                 .max_signal = 6,
 195                 .muxval = 1,
 196                 .cctl = 0,
 197                 .periph_buses = PL08X_AHB1,
 198         }, {
 199                 .bus_id = "ras3_tx",
 200                 .min_signal = 7,
 201                 .max_signal = 7,
 202                 .muxval = 1,
 203                 .cctl = 0,
 204                 .periph_buses = PL08X_AHB1,
 205         }, {
 206                 .bus_id = "ras4_rx",
 207                 .min_signal = 8,
 208                 .max_signal = 8,
 209                 .muxval = 1,
 210                 .cctl = 0,
 211                 .periph_buses = PL08X_AHB1,
 212         }, {
 213                 .bus_id = "ras4_tx",
 214                 .min_signal = 9,
 215                 .max_signal = 9,
 216                 .muxval = 1,
 217                 .cctl = 0,
 218                 .periph_buses = PL08X_AHB1,
 219         }, {
 220                 .bus_id = "ras5_rx",
 221                 .min_signal = 10,
 222                 .max_signal = 10,
 223                 .muxval = 1,
 224                 .cctl = 0,
 225                 .periph_buses = PL08X_AHB1,
 226         }, {
 227                 .bus_id = "ras5_tx",
 228                 .min_signal = 11,
 229                 .max_signal = 11,
 230                 .muxval = 1,
 231                 .cctl = 0,
 232                 .periph_buses = PL08X_AHB1,
 233         }, {
 234                 .bus_id = "ras6_rx",
 235                 .min_signal = 12,
 236                 .max_signal = 12,
 237                 .muxval = 1,
 238                 .cctl = 0,
 239                 .periph_buses = PL08X_AHB1,
 240         }, {
 241                 .bus_id = "ras6_tx",
 242                 .min_signal = 13,
 243                 .max_signal = 13,
 244                 .muxval = 1,
 245                 .cctl = 0,
 246                 .periph_buses = PL08X_AHB1,
 247         }, {
 248                 .bus_id = "ras7_rx",
 249                 .min_signal = 14,
 250                 .max_signal = 14,
 251                 .muxval = 1,
 252                 .cctl = 0,
 253                 .periph_buses = PL08X_AHB1,
 254         }, {
 255                 .bus_id = "ras7_tx",
 256                 .min_signal = 15,
 257                 .max_signal = 15,
 258                 .muxval = 1,
 259                 .cctl = 0,
 260                 .periph_buses = PL08X_AHB1,
 261         },
 262 };
 263
 264 /* Add SPEAr300 auxdata to pass platform data */
 265 static struct of_dev_auxdata spear300_auxdata_lookup[] __initdata = {
 266         OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL,
 267                         &pl022_plat_data),
 268         OF_DEV_AUXDATA("arm,pl080", SPEAR3XX_ICM3_DMA_BASE, NULL,
 269                         &pl080_plat_data),
 270         {}
 271 };
 272
 273 static void __init spear300_dt_init(void)
 274 {
 275         int ret;
 276
 277         pl080_plat_data.slave_channels = spear300_dma_info;
 278         pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear300_dma_info);
 279
 280         of_platform_populate(NULL, of_default_bus_match_table,
 281                         spear300_auxdata_lookup, NULL);
 282
 283         /* shared irq registration */
 284         shirq_ras1.regs.base = ioremap(SPEAR300_TELECOM_BASE, SZ_4K);
 285         if (shirq_ras1.regs.base) {
 286                 ret = spear_shirq_register(&shirq_ras1);
 287                 if (ret)
 288                         pr_err("Error registering Shared IRQ\n");
 289         }
 290 }
 291
 292 static const char * const spear300_dt_board_compat[] = {
 293         "st,spear300",
 294         "st,spear300-evb",
 295         NULL,
 296 };
 297
 298 static void __init spear300_map_io(void)
 299 {
 300         spear3xx_map_io();
 301         spear300_clk_init();
 302 }
 303
 304 DT_MACHINE_START(SPEAR300_DT, "ST SPEAr300 SoC with Flattened Device Tree")
 305         .map_io         =       spear300_map_io,
 306         .init_irq       =       spear3xx_dt_init_irq,
 307         .handle_irq     =       vic_handle_irq,
 308         .timer          =       &spear3xx_timer,
 309         .init_machine   =       spear300_dt_init,
 310         .restart        =       spear_restart,
 311         .dt_compat      =       spear300_dt_board_compat,
 312 MACHINE_END