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b8b82b29 SH |
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)); | |
50 | ||
51 | #ifdef CONFIG_CACHE_L2X0 | |
52 | /* Early BRESP enable, Shared attribute override enable, 64K*8way */ | |
53 | l2x0_init(IOMEM(0xf0100000), 0x40460000, 0x82000fff); | |
54 | #endif | |
55 | } | |
56 | ||
57 | static void kzm9g_restart(char mode, const char *cmd) | |
58 | { | |
59 | #define RESCNT2 IOMEM(0xe6188020) | |
60 | /* Do soft power on reset */ | |
61 | writel((1 << 31), RESCNT2); | |
62 | } | |
63 | ||
64 | static const char *kzm9g_boards_compat_dt[] __initdata = { | |
65 | "renesas,kzm9g-reference", | |
66 | NULL, | |
67 | }; | |
68 | ||
69 | /* Please note that the clock initialisation shcheme used in | |
70 | * sh73a0_add_early_devices_dt() and sh73a0_add_standard_devices_dt() | |
71 | * does not work with SMP as there is a yet to be resolved lock-up in | |
72 | * workqueue initialisation. | |
73 | * | |
74 | * CONFIG_SMP should be disabled when using this code. | |
75 | */ | |
76 | DT_MACHINE_START(KZM9G_DT, "kzm9g-reference") | |
77 | .smp = smp_ops(sh73a0_smp_ops), | |
78 | .map_io = sh73a0_map_io, | |
79 | .init_early = sh73a0_init_delay, | |
80 | .nr_irqs = NR_IRQS_LEGACY, | |
81 | .init_irq = irqchip_init, | |
82 | .init_machine = kzm_init, | |
83 | .init_late = shmobile_init_late, | |
84 | .init_time = shmobile_timer_init, | |
85 | .restart = kzm9g_restart, | |
86 | .dt_compat = kzm9g_boards_compat_dt, | |
87 | MACHINE_END |