arch/arm/mach-shmobile/setup-r8a7791.c

   1 /*
   2  * r8a7791 processor support
   3  *
   4  * Copyright (C) 2013  Renesas Electronics Corporation
   5  * Copyright (C) 2013  Renesas Solutions Corp.
   6  * Copyright (C) 2013  Magnus Damm
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; version 2 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21
  22 #include <linux/irq.h>
  23 #include <linux/kernel.h>
  24 #include <linux/of_platform.h>
  25 #include <linux/platform_data/irq-renesas-irqc.h>
  26 #include <linux/serial_sci.h>
  27 #include <linux/sh_timer.h>
  28 #include <mach/common.h>
  29 #include <mach/irqs.h>
  30 #include <mach/r8a7791.h>
  31 #include <mach/rcar-gen2.h>
  32 #include <asm/mach/arch.h>
  33
  34 #define SCIF_COMMON(scif_type, baseaddr, irq)                   \
  35         .type           = scif_type,                            \
  36         .mapbase        = baseaddr,                             \
  37         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,      \
  38         .irqs           = SCIx_IRQ_MUXED(irq)
  39
  40 #define SCIFA_DATA(index, baseaddr, irq)                \
  41 [index] = {                                             \
  42         SCIF_COMMON(PORT_SCIFA, baseaddr, irq),         \
  43         .scbrr_algo_id  = SCBRR_ALGO_4,                 \
  44         .scscr = SCSCR_RE | SCSCR_TE,   \
  45 }
  46
  47 #define SCIFB_DATA(index, baseaddr, irq)        \
  48 [index] = {                                     \
  49         SCIF_COMMON(PORT_SCIFB, baseaddr, irq), \
  50         .scbrr_algo_id  = SCBRR_ALGO_4,         \
  51         .scscr = SCSCR_RE | SCSCR_TE,           \
  52 }
  53
  54 #define SCIF_DATA(index, baseaddr, irq)         \
  55 [index] = {                                             \
  56         SCIF_COMMON(PORT_SCIF, baseaddr, irq),          \
  57         .scbrr_algo_id  = SCBRR_ALGO_2,                 \
  58         .scscr = SCSCR_RE | SCSCR_TE,   \
  59 }
  60
  61 #define HSCIF_DATA(index, baseaddr, irq)                \
  62 [index] = {                                             \
  63         SCIF_COMMON(PORT_HSCIF, baseaddr, irq),         \
  64         .scbrr_algo_id  = SCBRR_ALGO_6,                 \
  65         .scscr = SCSCR_RE | SCSCR_TE,   \
  66 }
  67
  68 enum { SCIFA0, SCIFA1, SCIFB0, SCIFB1, SCIFB2, SCIFA2, SCIF0, SCIF1,
  69         SCIF2, SCIF3, SCIF4, SCIF5, SCIFA3, SCIFA4, SCIFA5 };
  70
  71 static const struct plat_sci_port scif[] __initconst = {
  72         SCIFA_DATA(SCIFA0, 0xe6c40000, gic_spi(144)), /* SCIFA0 */
  73         SCIFA_DATA(SCIFA1, 0xe6c50000, gic_spi(145)), /* SCIFA1 */
  74         SCIFB_DATA(SCIFB0, 0xe6c20000, gic_spi(148)), /* SCIFB0 */
  75         SCIFB_DATA(SCIFB1, 0xe6c30000, gic_spi(149)), /* SCIFB1 */
  76         SCIFB_DATA(SCIFB2, 0xe6ce0000, gic_spi(150)), /* SCIFB2 */
  77         SCIFA_DATA(SCIFA2, 0xe6c60000, gic_spi(151)), /* SCIFA2 */
  78         SCIF_DATA(SCIF0, 0xe6e60000, gic_spi(152)), /* SCIF0 */
  79         SCIF_DATA(SCIF1, 0xe6e68000, gic_spi(153)), /* SCIF1 */
  80         SCIF_DATA(SCIF2, 0xe6e58000, gic_spi(22)), /* SCIF2 */
  81         SCIF_DATA(SCIF3, 0xe6ea8000, gic_spi(23)), /* SCIF3 */
  82         SCIF_DATA(SCIF4, 0xe6ee0000, gic_spi(24)), /* SCIF4 */
  83         SCIF_DATA(SCIF5, 0xe6ee8000, gic_spi(25)), /* SCIF5 */
  84         SCIFA_DATA(SCIFA3, 0xe6c70000, gic_spi(29)), /* SCIFA3 */
  85         SCIFA_DATA(SCIFA4, 0xe6c78000, gic_spi(30)), /* SCIFA4 */
  86         SCIFA_DATA(SCIFA5, 0xe6c80000, gic_spi(31)), /* SCIFA5 */
  87 };
  88
  89 static inline void r8a7791_register_scif(int idx)
  90 {
  91         platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx],
  92                                       sizeof(struct plat_sci_port));
  93 }
  94
  95 static const struct sh_timer_config cmt00_platform_data __initconst = {
  96         .name = "CMT00",
  97         .timer_bit = 0,
  98         .clockevent_rating = 80,
  99 };
 100
 101 static const struct resource cmt00_resources[] __initconst = {
 102         DEFINE_RES_MEM(0xffca0510, 0x0c),
 103         DEFINE_RES_MEM(0xffca0500, 0x04),
 104         DEFINE_RES_IRQ(gic_spi(142)), /* CMT0_0 */
 105 };
 106
 107 #define r8a7791_register_cmt(idx)                                       \
 108         platform_device_register_resndata(&platform_bus, "sh_cmt",      \
 109                                           idx, cmt##idx##_resources,    \
 110                                           ARRAY_SIZE(cmt##idx##_resources), \
 111                                           &cmt##idx##_platform_data,    \
 112                                           sizeof(struct sh_timer_config))
 113
 114 static struct renesas_irqc_config irqc0_data = {
 115         .irq_base = irq_pin(0), /* IRQ0 -> IRQ9 */
 116 };
 117
 118 static struct resource irqc0_resources[] = {
 119         DEFINE_RES_MEM(0xe61c0000, 0x200), /* IRQC Event Detector Block_0 */
 120         DEFINE_RES_IRQ(gic_spi(0)), /* IRQ0 */
 121         DEFINE_RES_IRQ(gic_spi(1)), /* IRQ1 */
 122         DEFINE_RES_IRQ(gic_spi(2)), /* IRQ2 */
 123         DEFINE_RES_IRQ(gic_spi(3)), /* IRQ3 */
 124         DEFINE_RES_IRQ(gic_spi(12)), /* IRQ4 */
 125         DEFINE_RES_IRQ(gic_spi(13)), /* IRQ5 */
 126         DEFINE_RES_IRQ(gic_spi(14)), /* IRQ6 */
 127         DEFINE_RES_IRQ(gic_spi(15)), /* IRQ7 */
 128         DEFINE_RES_IRQ(gic_spi(16)), /* IRQ8 */
 129         DEFINE_RES_IRQ(gic_spi(17)), /* IRQ9 */
 130 };
 131
 132 #define r8a7791_register_irqc(idx)                                      \
 133         platform_device_register_resndata(&platform_bus, "renesas_irqc", \
 134                                           idx, irqc##idx##_resources,   \
 135                                           ARRAY_SIZE(irqc##idx##_resources), \
 136                                           &irqc##idx##_data,            \
 137                                           sizeof(struct renesas_irqc_config))
 138
 139 void __init r8a7791_add_dt_devices(void)
 140 {
 141         r8a7791_register_scif(SCIFA0);
 142         r8a7791_register_scif(SCIFA1);
 143         r8a7791_register_scif(SCIFB0);
 144         r8a7791_register_scif(SCIFB1);
 145         r8a7791_register_scif(SCIFB2);
 146         r8a7791_register_scif(SCIFA2);
 147         r8a7791_register_scif(SCIF0);
 148         r8a7791_register_scif(SCIF1);
 149         r8a7791_register_scif(SCIF2);
 150         r8a7791_register_scif(SCIF3);
 151         r8a7791_register_scif(SCIF4);
 152         r8a7791_register_scif(SCIF5);
 153         r8a7791_register_scif(SCIFA3);
 154         r8a7791_register_scif(SCIFA4);
 155         r8a7791_register_scif(SCIFA5);
 156         r8a7791_register_cmt(00);
 157 }
 158
 159 void __init r8a7791_add_standard_devices(void)
 160 {
 161         r8a7791_add_dt_devices();
 162         r8a7791_register_irqc(0);
 163 }
 164
 165 void __init r8a7791_init_early(void)
 166 {
 167 #ifndef CONFIG_ARM_ARCH_TIMER
 168         shmobile_setup_delay(1300, 2, 4); /* Cortex-A15 @ 1300MHz */
 169 #endif
 170 }
 171
 172 #ifdef CONFIG_USE_OF
 173 static const char *r8a7791_boards_compat_dt[] __initdata = {
 174         "renesas,r8a7791",
 175         NULL,
 176 };
 177
 178 DT_MACHINE_START(R8A7791_DT, "Generic R8A7791 (Flattened Device Tree)")
 179         .smp            = smp_ops(r8a7791_smp_ops),
 180         .init_early     = r8a7791_init_early,
 181         .init_time      = rcar_gen2_timer_init,
 182         .dt_compat      = r8a7791_boards_compat_dt,
 183 MACHINE_END
 184 #endif /* CONFIG_USE_OF */