| Simon Horman | b8b82b2 | 2012-11-22 00:34:25 +0900 | [diff] [blame] | 1 | /* |
| 2 | * KZM-A9-GT board support - Reference Device Tree Implementation |
| 3 | * |
| 4 | * Copyright (C) 2012 Horms Solutions Ltd. |
| 5 | * |
| 6 | * Based on board-kzm9g.c |
| 7 | * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; version 2 of the License. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | #include <linux/delay.h> |
| 24 | #include <linux/gpio.h> |
| 25 | #include <linux/io.h> |
| 26 | #include <linux/irq.h> |
| 27 | #include <linux/irqchip.h> |
| 28 | #include <linux/input.h> |
| 29 | #include <linux/of_platform.h> |
| 30 | #include <linux/pinctrl/machine.h> |
| 31 | #include <mach/sh73a0.h> |
| 32 | #include <mach/common.h> |
| 33 | #include <asm/hardware/cache-l2x0.h> |
| 34 | #include <asm/mach-types.h> |
| 35 | #include <asm/mach/arch.h> |
| 36 | |
| 37 | static const struct pinctrl_map kzm_pinctrl_map[] = { |
| 38 | PIN_MAP_MUX_GROUP_DEFAULT("i2c-sh_mobile.3", "pfc-sh73a0", |
| 39 | "i2c3_1", "i2c3"), |
| 40 | PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.4", "pfc-sh73a0", |
| 41 | "scifa4_data", "scifa4"), |
| 42 | PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.4", "pfc-sh73a0", |
| 43 | "scifa4_ctrl", "scifa4"), |
| 44 | }; |
| 45 | |
| 46 | static void __init kzm_init(void) |
| 47 | { |
| 48 | sh73a0_add_standard_devices_dt(); |
| 49 | pinctrl_register_mappings(kzm_pinctrl_map, ARRAY_SIZE(kzm_pinctrl_map)); |
| Guennadi Liakhovetski | 275cc1d | 2013-02-08 19:38:31 +0100 | [diff] [blame^] | 50 | sh73a0_pinmux_init(); |
| Simon Horman | b8b82b2 | 2012-11-22 00:34:25 +0900 | [diff] [blame] | 51 | |
| 52 | #ifdef CONFIG_CACHE_L2X0 |
| 53 | /* Early BRESP enable, Shared attribute override enable, 64K*8way */ |
| 54 | l2x0_init(IOMEM(0xf0100000), 0x40460000, 0x82000fff); |
| 55 | #endif |
| 56 | } |
| 57 | |
| 58 | static void kzm9g_restart(char mode, const char *cmd) |
| 59 | { |
| 60 | #define RESCNT2 IOMEM(0xe6188020) |
| 61 | /* Do soft power on reset */ |
| 62 | writel((1 << 31), RESCNT2); |
| 63 | } |
| 64 | |
| 65 | static const char *kzm9g_boards_compat_dt[] __initdata = { |
| 66 | "renesas,kzm9g-reference", |
| 67 | NULL, |
| 68 | }; |
| 69 | |
| 70 | /* Please note that the clock initialisation shcheme used in |
| 71 | * sh73a0_add_early_devices_dt() and sh73a0_add_standard_devices_dt() |
| 72 | * does not work with SMP as there is a yet to be resolved lock-up in |
| 73 | * workqueue initialisation. |
| 74 | * |
| 75 | * CONFIG_SMP should be disabled when using this code. |
| 76 | */ |
| 77 | DT_MACHINE_START(KZM9G_DT, "kzm9g-reference") |
| 78 | .smp = smp_ops(sh73a0_smp_ops), |
| 79 | .map_io = sh73a0_map_io, |
| 80 | .init_early = sh73a0_init_delay, |
| 81 | .nr_irqs = NR_IRQS_LEGACY, |
| 82 | .init_irq = irqchip_init, |
| 83 | .init_machine = kzm_init, |
| 84 | .init_late = shmobile_init_late, |
| 85 | .init_time = shmobile_timer_init, |
| 86 | .restart = kzm9g_restart, |
| 87 | .dt_compat = kzm9g_boards_compat_dt, |
| 88 | MACHINE_END |