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1f52c659 HN |
1 | /* |
2 | * Koelsch board 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 | ||
784c33a0 | 22 | #include <linux/dma-mapping.h> |
721319d1 MD |
23 | #include <linux/gpio.h> |
24 | #include <linux/gpio_keys.h> | |
25 | #include <linux/input.h> | |
1f52c659 | 26 | #include <linux/kernel.h> |
87a2934e | 27 | #include <linux/leds.h> |
974faba7 | 28 | #include <linux/phy.h> |
85ef14da | 29 | #include <linux/pinctrl/machine.h> |
87a2934e | 30 | #include <linux/platform_data/gpio-rcar.h> |
784c33a0 | 31 | #include <linux/platform_data/rcar-du.h> |
1f52c659 | 32 | #include <linux/platform_device.h> |
974faba7 | 33 | #include <linux/sh_eth.h> |
1f52c659 | 34 | #include <mach/common.h> |
784c33a0 | 35 | #include <mach/irqs.h> |
1f52c659 | 36 | #include <mach/r8a7791.h> |
f9c9eb7e | 37 | #include <mach/rcar-gen2.h> |
1f52c659 HN |
38 | #include <asm/mach-types.h> |
39 | #include <asm/mach/arch.h> | |
40 | ||
784c33a0 LP |
41 | /* DU */ |
42 | static struct rcar_du_encoder_data koelsch_du_encoders[] = { | |
43 | { | |
44 | .type = RCAR_DU_ENCODER_NONE, | |
45 | .output = RCAR_DU_OUTPUT_LVDS0, | |
46 | .connector.lvds.panel = { | |
47 | .width_mm = 210, | |
48 | .height_mm = 158, | |
49 | .mode = { | |
50 | .clock = 65000, | |
51 | .hdisplay = 1024, | |
52 | .hsync_start = 1048, | |
53 | .hsync_end = 1184, | |
54 | .htotal = 1344, | |
55 | .vdisplay = 768, | |
56 | .vsync_start = 771, | |
57 | .vsync_end = 777, | |
58 | .vtotal = 806, | |
59 | .flags = 0, | |
60 | }, | |
61 | }, | |
62 | }, | |
63 | }; | |
64 | ||
65 | static const struct rcar_du_platform_data koelsch_du_pdata __initconst = { | |
66 | .encoders = koelsch_du_encoders, | |
67 | .num_encoders = ARRAY_SIZE(koelsch_du_encoders), | |
68 | }; | |
69 | ||
70 | static const struct resource du_resources[] __initconst = { | |
71 | DEFINE_RES_MEM(0xfeb00000, 0x40000), | |
72 | DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"), | |
73 | DEFINE_RES_IRQ(gic_spi(256)), | |
74 | DEFINE_RES_IRQ(gic_spi(268)), | |
75 | }; | |
76 | ||
77 | static void __init koelsch_add_du_device(void) | |
78 | { | |
79 | struct platform_device_info info = { | |
80 | .name = "rcar-du-r8a7791", | |
81 | .id = -1, | |
82 | .res = du_resources, | |
83 | .num_res = ARRAY_SIZE(du_resources), | |
84 | .data = &koelsch_du_pdata, | |
85 | .size_data = sizeof(koelsch_du_pdata), | |
86 | .dma_mask = DMA_BIT_MASK(32), | |
87 | }; | |
88 | ||
89 | platform_device_register_full(&info); | |
90 | } | |
91 | ||
974faba7 SS |
92 | /* Ether */ |
93 | static const struct sh_eth_plat_data ether_pdata __initconst = { | |
94 | .phy = 0x1, | |
95 | .edmac_endian = EDMAC_LITTLE_ENDIAN, | |
96 | .phy_interface = PHY_INTERFACE_MODE_RMII, | |
97 | .ether_link_active_low = 1, | |
98 | }; | |
99 | ||
100 | static const struct resource ether_resources[] __initconst = { | |
101 | DEFINE_RES_MEM(0xee700000, 0x400), | |
102 | DEFINE_RES_IRQ(gic_spi(162)), | |
103 | }; | |
104 | ||
87a2934e MD |
105 | /* LEDS */ |
106 | static struct gpio_led koelsch_leds[] = { | |
107 | { | |
108 | .name = "led8", | |
109 | .gpio = RCAR_GP_PIN(2, 21), | |
110 | .default_state = LEDS_GPIO_DEFSTATE_ON, | |
111 | }, { | |
112 | .name = "led7", | |
113 | .gpio = RCAR_GP_PIN(2, 20), | |
114 | .default_state = LEDS_GPIO_DEFSTATE_ON, | |
115 | }, { | |
116 | .name = "led6", | |
117 | .gpio = RCAR_GP_PIN(2, 19), | |
118 | .default_state = LEDS_GPIO_DEFSTATE_ON, | |
119 | }, | |
120 | }; | |
121 | ||
122 | static const struct gpio_led_platform_data koelsch_leds_pdata __initconst = { | |
123 | .leds = koelsch_leds, | |
124 | .num_leds = ARRAY_SIZE(koelsch_leds), | |
125 | }; | |
126 | ||
721319d1 MD |
127 | /* GPIO KEY */ |
128 | #define GPIO_KEY(c, g, d, ...) \ | |
478e2f9c | 129 | { .code = c, .gpio = g, .desc = d, .active_low = 1, \ |
e209456e | 130 | .wakeup = 1, .debounce_interval = 20 } |
721319d1 MD |
131 | |
132 | static struct gpio_keys_button gpio_buttons[] = { | |
133 | GPIO_KEY(KEY_4, RCAR_GP_PIN(5, 3), "SW2-pin4"), | |
134 | GPIO_KEY(KEY_3, RCAR_GP_PIN(5, 2), "SW2-pin3"), | |
135 | GPIO_KEY(KEY_2, RCAR_GP_PIN(5, 1), "SW2-pin2"), | |
136 | GPIO_KEY(KEY_1, RCAR_GP_PIN(5, 0), "SW2-pin1"), | |
159a282d MD |
137 | GPIO_KEY(KEY_G, RCAR_GP_PIN(7, 6), "SW36"), |
138 | GPIO_KEY(KEY_F, RCAR_GP_PIN(7, 5), "SW35"), | |
139 | GPIO_KEY(KEY_E, RCAR_GP_PIN(7, 4), "SW34"), | |
140 | GPIO_KEY(KEY_D, RCAR_GP_PIN(7, 3), "SW33"), | |
141 | GPIO_KEY(KEY_C, RCAR_GP_PIN(7, 2), "SW32"), | |
142 | GPIO_KEY(KEY_B, RCAR_GP_PIN(7, 1), "SW31"), | |
143 | GPIO_KEY(KEY_A, RCAR_GP_PIN(7, 0), "SW30"), | |
721319d1 MD |
144 | }; |
145 | ||
146 | static const struct gpio_keys_platform_data koelsch_keys_pdata __initconst = { | |
147 | .buttons = gpio_buttons, | |
148 | .nbuttons = ARRAY_SIZE(gpio_buttons), | |
149 | }; | |
150 | ||
85ef14da | 151 | static const struct pinctrl_map koelsch_pinctrl_map[] = { |
784c33a0 LP |
152 | /* DU */ |
153 | PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791", | |
154 | "du_rgb666", "du"), | |
155 | PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791", | |
156 | "du_sync", "du"), | |
157 | PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791", | |
158 | "du_clk_out_0", "du"), | |
974faba7 SS |
159 | /* Ether */ |
160 | PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791", | |
161 | "eth_link", "eth"), | |
162 | PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791", | |
163 | "eth_mdio", "eth"), | |
164 | PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791", | |
165 | "eth_rmii", "eth"), | |
166 | PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791", | |
167 | "intc_irq0", "intc"), | |
85ef14da MD |
168 | /* SCIF0 (CN19: DEBUG SERIAL0) */ |
169 | PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7791", | |
170 | "scif0_data_d", "scif0"), | |
171 | /* SCIF1 (CN20: DEBUG SERIAL1) */ | |
172 | PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.7", "pfc-r8a7791", | |
173 | "scif1_data_d", "scif1"), | |
174 | }; | |
175 | ||
1f52c659 HN |
176 | static void __init koelsch_add_standard_devices(void) |
177 | { | |
178 | r8a7791_clock_init(); | |
85ef14da MD |
179 | pinctrl_register_mappings(koelsch_pinctrl_map, |
180 | ARRAY_SIZE(koelsch_pinctrl_map)); | |
1a534ece | 181 | r8a7791_pinmux_init(); |
0749bead | 182 | r8a7791_add_standard_devices(); |
974faba7 SS |
183 | platform_device_register_resndata(&platform_bus, "r8a7791-ether", -1, |
184 | ether_resources, | |
185 | ARRAY_SIZE(ether_resources), | |
186 | ðer_pdata, sizeof(ether_pdata)); | |
87a2934e MD |
187 | platform_device_register_data(&platform_bus, "leds-gpio", -1, |
188 | &koelsch_leds_pdata, | |
189 | sizeof(koelsch_leds_pdata)); | |
721319d1 MD |
190 | platform_device_register_data(&platform_bus, "gpio-keys", -1, |
191 | &koelsch_keys_pdata, | |
192 | sizeof(koelsch_keys_pdata)); | |
784c33a0 LP |
193 | |
194 | koelsch_add_du_device(); | |
1f52c659 HN |
195 | } |
196 | ||
974faba7 SS |
197 | /* |
198 | * Ether LEDs on the Koelsch board are named LINK and ACTIVE which corresponds | |
199 | * to non-default 01 setting of the Micrel KSZ8041 PHY control register 1 bits | |
200 | * 14-15. We have to set them back to 01 from the default 00 value each time | |
201 | * the PHY is reset. It's also important because the PHY's LED0 signal is | |
202 | * connected to SoC's ETH_LINK signal and in the PHY's default mode it will | |
203 | * bounce on and off after each packet, which we apparently want to avoid. | |
204 | */ | |
205 | static int koelsch_ksz8041_fixup(struct phy_device *phydev) | |
206 | { | |
207 | u16 phyctrl1 = phy_read(phydev, 0x1e); | |
208 | ||
209 | phyctrl1 &= ~0xc000; | |
210 | phyctrl1 |= 0x4000; | |
211 | return phy_write(phydev, 0x1e, phyctrl1); | |
212 | } | |
213 | ||
214 | static void __init koelsch_init(void) | |
215 | { | |
216 | koelsch_add_standard_devices(); | |
217 | ||
218 | if (IS_ENABLED(CONFIG_PHYLIB)) | |
219 | phy_register_fixup_for_id("r8a7791-ether-ff:01", | |
220 | koelsch_ksz8041_fixup); | |
221 | } | |
222 | ||
1f52c659 HN |
223 | static const char * const koelsch_boards_compat_dt[] __initconst = { |
224 | "renesas,koelsch", | |
225 | NULL, | |
226 | }; | |
227 | ||
228 | DT_MACHINE_START(KOELSCH_DT, "koelsch") | |
b6d5a1b1 | 229 | .smp = smp_ops(r8a7791_smp_ops), |
1f52c659 | 230 | .init_early = r8a7791_init_early, |
f9c9eb7e | 231 | .init_time = rcar_gen2_timer_init, |
974faba7 | 232 | .init_machine = koelsch_init, |
6dc00ab9 | 233 | .init_late = shmobile_init_late, |
1f52c659 HN |
234 | .dt_compat = koelsch_boards_compat_dt, |
235 | MACHINE_END |