arch/arm/mach-shmobile/setup-r7s72100.c

   1 /*
   2  * r7s72100 processor support
   3  *
   4  * Copyright (C) 2013  Renesas Solutions Corp.
   5  * Copyright (C) 2013  Magnus Damm
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include <linux/irq.h>
  22 #include <linux/kernel.h>
  23 #include <linux/of_platform.h>
  24 #include <linux/serial_sci.h>
  25 #include <linux/sh_timer.h>
  26 #include <mach/common.h>
  27 #include <mach/irqs.h>
  28 #include <mach/r7s72100.h>
  29 #include <asm/mach/arch.h>
  30
  31 #define R7S72100_SCIF(index, baseaddr, irq)                             \
  32 static const struct plat_sci_port scif##index##_platform_data = {       \
  33         .type           = PORT_SCIF,                                    \
  34         .regtype        = SCIx_SH2_SCIF_FIFODATA_REGTYPE,               \
  35         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,              \
  36         .scscr          = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE | \
  37                           SCSCR_REIE,                                   \
  38 };                                                                      \
  39                                                                         \
  40 static struct resource scif##index##_resources[] = {                    \
  41         DEFINE_RES_MEM(baseaddr, 0x100),                                \
  42         DEFINE_RES_IRQ(irq + 1),                                        \
  43         DEFINE_RES_IRQ(irq + 2),                                        \
  44         DEFINE_RES_IRQ(irq + 3),                                        \
  45         DEFINE_RES_IRQ(irq),                                            \
  46 }                                                                       \
  47
  48 R7S72100_SCIF(0, 0xe8007000, gic_iid(221));
  49 R7S72100_SCIF(1, 0xe8007800, gic_iid(225));
  50 R7S72100_SCIF(2, 0xe8008000, gic_iid(229));
  51 R7S72100_SCIF(3, 0xe8008800, gic_iid(233));
  52 R7S72100_SCIF(4, 0xe8009000, gic_iid(237));
  53 R7S72100_SCIF(5, 0xe8009800, gic_iid(241));
  54 R7S72100_SCIF(6, 0xe800a000, gic_iid(245));
  55 R7S72100_SCIF(7, 0xe800a800, gic_iid(249));
  56
  57 #define r7s72100_register_scif(index)                                          \
  58         platform_device_register_resndata(&platform_bus, "sh-sci", index,      \
  59                                           scif##index##_resources,             \
  60                                           ARRAY_SIZE(scif##index##_resources), \
  61                                           &scif##index##_platform_data,        \
  62                                           sizeof(scif##index##_platform_data))
  63
  64
  65 static struct sh_timer_config mtu2_0_platform_data __initdata = {
  66         .name = "MTU2_0",
  67         .timer_bit = 0,
  68         .channel_offset = -0x80,
  69         .clockevent_rating = 200,
  70 };
  71
  72 static struct resource mtu2_0_resources[] __initdata = {
  73         DEFINE_RES_MEM(0xfcff0300, 0x27),
  74         DEFINE_RES_IRQ(gic_iid(139)), /* MTU2 TGI0A */
  75 };
  76
  77 #define r7s72100_register_mtu2(idx)                                     \
  78         platform_device_register_resndata(&platform_bus, "sh_mtu2",     \
  79                                           idx, mtu2_##idx##_resources,  \
  80                                           ARRAY_SIZE(mtu2_##idx##_resources), \
  81                                           &mtu2_##idx##_platform_data,  \
  82                                           sizeof(struct sh_timer_config))
  83
  84 void __init r7s72100_add_dt_devices(void)
  85 {
  86         r7s72100_register_scif(0);
  87         r7s72100_register_scif(1);
  88         r7s72100_register_scif(2);
  89         r7s72100_register_scif(3);
  90         r7s72100_register_scif(4);
  91         r7s72100_register_scif(5);
  92         r7s72100_register_scif(6);
  93         r7s72100_register_scif(7);
  94         r7s72100_register_mtu2(0);
  95 }
  96
  97 void __init r7s72100_init_early(void)
  98 {
  99         shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */
 100 }
 101
 102 #ifdef CONFIG_USE_OF
 103 static const char *r7s72100_boards_compat_dt[] __initdata = {
 104         "renesas,r7s72100",
 105         NULL,
 106 };
 107
 108 DT_MACHINE_START(R7S72100_DT, "Generic R7S72100 (Flattened Device Tree)")
 109         .init_early     = r7s72100_init_early,
 110         .dt_compat      = r7s72100_boards_compat_dt,
 111 MACHINE_END
 112 #endif /* CONFIG_USE_OF */