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415c7d26 YY |
1 | /* |
2 | * KZM-ARM11-01 support | |
3 | * Copyright (C) 2009 Yoichi Yuasa <yuasa@linux-mips.org> | |
4 | * | |
5 | * based on code for MX31ADS, | |
6 | * Copyright (C) 2000 Deep Blue Solutions Ltd | |
7 | * Copyright (C) 2002 Shane Nay (shane@minirl.com) | |
8 | * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
415c7d26 YY |
19 | */ |
20 | ||
21 | #include <linux/gpio.h> | |
22 | #include <linux/init.h> | |
23 | #include <linux/platform_device.h> | |
24 | #include <linux/serial_8250.h> | |
25 | #include <linux/smsc911x.h> | |
26 | #include <linux/types.h> | |
ccdf3278 FE |
27 | #include <linux/regulator/machine.h> |
28 | #include <linux/regulator/fixed.h> | |
415c7d26 YY |
29 | |
30 | #include <asm/irq.h> | |
31 | #include <asm/mach-types.h> | |
f4117ac9 | 32 | #include <asm/memory.h> |
415c7d26 YY |
33 | #include <asm/setup.h> |
34 | #include <asm/mach/arch.h> | |
35 | #include <asm/mach/irq.h> | |
36 | #include <asm/mach/map.h> | |
37 | #include <asm/mach/time.h> | |
38 | ||
415c7d26 YY |
39 | #include <mach/clock.h> |
40 | #include <mach/common.h> | |
f2d9661b | 41 | #include <mach/hardware.h> |
415c7d26 | 42 | #include <mach/iomux-mx3.h> |
415c7d26 | 43 | |
16cf5c41 | 44 | #include "devices-imx31.h" |
415c7d26 | 45 | |
f5d7a13b UKK |
46 | #define KZM_ARM11_IO_ADDRESS(x) (IOMEM( \ |
47 | IMX_IO_P2V_MODULE(x, MX31_CS4) ?: \ | |
48 | IMX_IO_P2V_MODULE(x, MX31_CS5)) ?: \ | |
59e26081 UKK |
49 | MX31_IO_ADDRESS(x)) |
50 | ||
7b562d0f UKK |
51 | /* |
52 | * KZM-ARM11-01 Board Control Registers on FPGA | |
53 | */ | |
54 | #define KZM_ARM11_CTL1 (MX31_CS4_BASE_ADDR + 0x1000) | |
55 | #define KZM_ARM11_CTL2 (MX31_CS4_BASE_ADDR + 0x1001) | |
56 | #define KZM_ARM11_RSW1 (MX31_CS4_BASE_ADDR + 0x1002) | |
57 | #define KZM_ARM11_BACK_LIGHT (MX31_CS4_BASE_ADDR + 0x1004) | |
58 | #define KZM_ARM11_FPGA_REV (MX31_CS4_BASE_ADDR + 0x1008) | |
59 | #define KZM_ARM11_7SEG_LED (MX31_CS4_BASE_ADDR + 0x1010) | |
60 | #define KZM_ARM11_LEDS (MX31_CS4_BASE_ADDR + 0x1020) | |
61 | #define KZM_ARM11_DIPSW2 (MX31_CS4_BASE_ADDR + 0x1003) | |
62 | ||
63 | /* | |
64 | * External UART for touch panel on FPGA | |
65 | */ | |
66 | #define KZM_ARM11_16550 (MX31_CS4_BASE_ADDR + 0x1050) | |
67 | ||
415c7d26 YY |
68 | #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) |
69 | /* | |
70 | * KZM-ARM11-01 has an external UART on FPGA | |
71 | */ | |
72 | static struct plat_serial8250_port serial_platform_data[] = { | |
73 | { | |
59e26081 | 74 | .membase = KZM_ARM11_IO_ADDRESS(KZM_ARM11_16550), |
415c7d26 | 75 | .mapbase = KZM_ARM11_16550, |
ed175343 | 76 | /* irq number is run-time assigned */ |
415c7d26 YY |
77 | .irqflags = IRQ_TYPE_EDGE_RISING, |
78 | .uartclk = 14745600, | |
79 | .regshift = 0, | |
80 | .iotype = UPIO_MEM, | |
81 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | | |
82 | UPF_BUGGY_UART, | |
83 | }, | |
84 | {}, | |
85 | }; | |
86 | ||
87 | static struct resource serial8250_resources[] = { | |
88 | { | |
89 | .start = KZM_ARM11_16550, | |
90 | .end = KZM_ARM11_16550 + 0x10, | |
91 | .flags = IORESOURCE_MEM, | |
92 | }, | |
93 | { | |
ed175343 | 94 | /* irq number is run-time assigned */ |
415c7d26 YY |
95 | .flags = IORESOURCE_IRQ, |
96 | }, | |
97 | }; | |
98 | ||
99 | static struct platform_device serial_device = { | |
100 | .name = "serial8250", | |
101 | .id = PLAT8250_DEV_PLATFORM, | |
102 | .dev = { | |
103 | .platform_data = serial_platform_data, | |
104 | }, | |
105 | .num_resources = ARRAY_SIZE(serial8250_resources), | |
106 | .resource = serial8250_resources, | |
107 | }; | |
108 | ||
109 | static int __init kzm_init_ext_uart(void) | |
110 | { | |
111 | u8 tmp; | |
112 | ||
113 | /* | |
114 | * GPIO 1-1: external UART interrupt line | |
115 | */ | |
116 | mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO)); | |
117 | gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1), "ext-uart-int"); | |
118 | gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)); | |
119 | ||
120 | /* | |
121 | * Unmask UART interrupt | |
122 | */ | |
59e26081 | 123 | tmp = __raw_readb(KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1)); |
415c7d26 | 124 | tmp |= 0x2; |
59e26081 | 125 | __raw_writeb(tmp, KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1)); |
415c7d26 | 126 | |
ed175343 SG |
127 | serial_platform_data[0].irq = |
128 | gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)); | |
129 | serial8250_resources[1].start = | |
130 | gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)); | |
131 | serial8250_resources[1].end = | |
132 | gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)); | |
133 | ||
415c7d26 YY |
134 | return platform_device_register(&serial_device); |
135 | } | |
136 | #else | |
137 | static inline int kzm_init_ext_uart(void) | |
138 | { | |
139 | return 0; | |
140 | } | |
141 | #endif | |
142 | ||
143 | /* | |
144 | * SMSC LAN9118 | |
145 | */ | |
146 | #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE) | |
147 | static struct smsc911x_platform_config kzm_smsc9118_config = { | |
148 | .phy_interface = PHY_INTERFACE_MODE_MII, | |
149 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH, | |
150 | .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, | |
151 | .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS, | |
152 | }; | |
153 | ||
154 | static struct resource kzm_smsc9118_resources[] = { | |
155 | { | |
f568dd7f UKK |
156 | .start = MX31_CS5_BASE_ADDR, |
157 | .end = MX31_CS5_BASE_ADDR + SZ_128K - 1, | |
415c7d26 YY |
158 | .flags = IORESOURCE_MEM, |
159 | }, | |
160 | { | |
ed175343 | 161 | /* irq number is run-time assigned */ |
415c7d26 YY |
162 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, |
163 | }, | |
164 | }; | |
165 | ||
166 | static struct platform_device kzm_smsc9118_device = { | |
167 | .name = "smsc911x", | |
168 | .id = -1, | |
169 | .num_resources = ARRAY_SIZE(kzm_smsc9118_resources), | |
170 | .resource = kzm_smsc9118_resources, | |
171 | .dev = { | |
172 | .platform_data = &kzm_smsc9118_config, | |
173 | }, | |
174 | }; | |
175 | ||
ccdf3278 FE |
176 | static struct regulator_consumer_supply dummy_supplies[] = { |
177 | REGULATOR_SUPPLY("vdd33a", "smsc911x"), | |
178 | REGULATOR_SUPPLY("vddvario", "smsc911x"), | |
179 | }; | |
180 | ||
415c7d26 YY |
181 | static int __init kzm_init_smsc9118(void) |
182 | { | |
183 | /* | |
184 | * GPIO 1-2: SMSC9118 interrupt line | |
185 | */ | |
186 | mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO)); | |
187 | gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int"); | |
188 | gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2)); | |
189 | ||
ccdf3278 FE |
190 | regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); |
191 | ||
ed175343 SG |
192 | kzm_smsc9118_resources[1].start = |
193 | gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2)); | |
194 | kzm_smsc9118_resources[1].end = | |
195 | gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2)); | |
196 | ||
415c7d26 YY |
197 | return platform_device_register(&kzm_smsc9118_device); |
198 | } | |
199 | #else | |
200 | static inline int kzm_init_smsc9118(void) | |
201 | { | |
202 | return 0; | |
203 | } | |
204 | #endif | |
205 | ||
206 | #if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE) | |
16cf5c41 | 207 | static const struct imxuart_platform_data uart_pdata __initconst = { |
415c7d26 YY |
208 | .flags = IMXUART_HAVE_RTSCTS, |
209 | }; | |
210 | ||
211 | static void __init kzm_init_imx_uart(void) | |
212 | { | |
16cf5c41 UKK |
213 | imx31_add_imx_uart0(&uart_pdata); |
214 | imx31_add_imx_uart1(&uart_pdata); | |
415c7d26 YY |
215 | } |
216 | #else | |
217 | static inline void kzm_init_imx_uart(void) | |
218 | { | |
219 | } | |
220 | #endif | |
221 | ||
222 | static int kzm_pins[] __initdata = { | |
223 | MX31_PIN_CTS1__CTS1, | |
224 | MX31_PIN_RTS1__RTS1, | |
225 | MX31_PIN_TXD1__TXD1, | |
226 | MX31_PIN_RXD1__RXD1, | |
227 | MX31_PIN_DCD_DCE1__DCD_DCE1, | |
228 | MX31_PIN_RI_DCE1__RI_DCE1, | |
229 | MX31_PIN_DSR_DCE1__DSR_DCE1, | |
230 | MX31_PIN_DTR_DCE1__DTR_DCE1, | |
231 | MX31_PIN_CTS2__CTS2, | |
232 | MX31_PIN_RTS2__RTS2, | |
233 | MX31_PIN_TXD2__TXD2, | |
234 | MX31_PIN_RXD2__RXD2, | |
235 | MX31_PIN_DCD_DTE1__DCD_DTE2, | |
236 | MX31_PIN_RI_DTE1__RI_DTE2, | |
237 | MX31_PIN_DSR_DTE1__DSR_DTE2, | |
238 | MX31_PIN_DTR_DTE1__DTR_DTE2, | |
239 | }; | |
240 | ||
241 | /* | |
242 | * Board specific initialization. | |
243 | */ | |
244 | static void __init kzm_board_init(void) | |
245 | { | |
b78d8e59 SG |
246 | imx31_soc_init(); |
247 | ||
415c7d26 YY |
248 | mxc_iomux_setup_multiple_pins(kzm_pins, |
249 | ARRAY_SIZE(kzm_pins), "kzm"); | |
250 | kzm_init_ext_uart(); | |
251 | kzm_init_smsc9118(); | |
252 | kzm_init_imx_uart(); | |
253 | ||
254 | pr_info("Clock input source is 26MHz\n"); | |
255 | } | |
256 | ||
257 | /* | |
258 | * This structure defines static mappings for the kzm-arm11-01 board. | |
259 | */ | |
260 | static struct map_desc kzm_io_desc[] __initdata = { | |
261 | { | |
f568dd7f UKK |
262 | .virtual = MX31_CS4_BASE_ADDR_VIRT, |
263 | .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR), | |
264 | .length = MX31_CS4_SIZE, | |
415c7d26 YY |
265 | .type = MT_DEVICE |
266 | }, | |
267 | { | |
f568dd7f UKK |
268 | .virtual = MX31_CS5_BASE_ADDR_VIRT, |
269 | .pfn = __phys_to_pfn(MX31_CS5_BASE_ADDR), | |
270 | .length = MX31_CS5_SIZE, | |
415c7d26 YY |
271 | .type = MT_DEVICE |
272 | }, | |
273 | }; | |
274 | ||
275 | /* | |
276 | * Set up static virtual mappings. | |
277 | */ | |
278 | static void __init kzm_map_io(void) | |
279 | { | |
280 | mx31_map_io(); | |
281 | iotable_init(kzm_io_desc, ARRAY_SIZE(kzm_io_desc)); | |
282 | } | |
283 | ||
284 | static void __init kzm_timer_init(void) | |
285 | { | |
286 | mx31_clocks_init(26000000); | |
287 | } | |
288 | ||
289 | static struct sys_timer kzm_timer = { | |
e134fb2b | 290 | .init = kzm_timer_init, |
415c7d26 YY |
291 | }; |
292 | ||
415c7d26 | 293 | MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01") |
dc8f1907 | 294 | .atag_offset = 0x100, |
97976e22 UKK |
295 | .map_io = kzm_map_io, |
296 | .init_early = imx31_init_early, | |
297 | .init_irq = mx31_init_irq, | |
ffa2ea3f | 298 | .handle_irq = imx31_handle_irq, |
97976e22 UKK |
299 | .timer = &kzm_timer, |
300 | .init_machine = kzm_board_init, | |
65ea7884 | 301 | .restart = mxc_restart, |
415c7d26 | 302 | MACHINE_END |