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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> | |
27 | ||
28 | #include <asm/irq.h> | |
29 | #include <asm/mach-types.h> | |
f4117ac9 | 30 | #include <asm/memory.h> |
415c7d26 YY |
31 | #include <asm/setup.h> |
32 | #include <asm/mach/arch.h> | |
33 | #include <asm/mach/irq.h> | |
34 | #include <asm/mach/map.h> | |
35 | #include <asm/mach/time.h> | |
36 | ||
415c7d26 YY |
37 | #include <mach/clock.h> |
38 | #include <mach/common.h> | |
415c7d26 | 39 | #include <mach/iomux-mx3.h> |
415c7d26 | 40 | |
16cf5c41 | 41 | #include "devices-imx31.h" |
415c7d26 | 42 | |
f5d7a13b UKK |
43 | #define KZM_ARM11_IO_ADDRESS(x) (IOMEM( \ |
44 | IMX_IO_P2V_MODULE(x, MX31_CS4) ?: \ | |
45 | IMX_IO_P2V_MODULE(x, MX31_CS5)) ?: \ | |
59e26081 UKK |
46 | MX31_IO_ADDRESS(x)) |
47 | ||
7b562d0f UKK |
48 | /* |
49 | * KZM-ARM11-01 Board Control Registers on FPGA | |
50 | */ | |
51 | #define KZM_ARM11_CTL1 (MX31_CS4_BASE_ADDR + 0x1000) | |
52 | #define KZM_ARM11_CTL2 (MX31_CS4_BASE_ADDR + 0x1001) | |
53 | #define KZM_ARM11_RSW1 (MX31_CS4_BASE_ADDR + 0x1002) | |
54 | #define KZM_ARM11_BACK_LIGHT (MX31_CS4_BASE_ADDR + 0x1004) | |
55 | #define KZM_ARM11_FPGA_REV (MX31_CS4_BASE_ADDR + 0x1008) | |
56 | #define KZM_ARM11_7SEG_LED (MX31_CS4_BASE_ADDR + 0x1010) | |
57 | #define KZM_ARM11_LEDS (MX31_CS4_BASE_ADDR + 0x1020) | |
58 | #define KZM_ARM11_DIPSW2 (MX31_CS4_BASE_ADDR + 0x1003) | |
59 | ||
60 | /* | |
61 | * External UART for touch panel on FPGA | |
62 | */ | |
63 | #define KZM_ARM11_16550 (MX31_CS4_BASE_ADDR + 0x1050) | |
64 | ||
415c7d26 YY |
65 | #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) |
66 | /* | |
67 | * KZM-ARM11-01 has an external UART on FPGA | |
68 | */ | |
69 | static struct plat_serial8250_port serial_platform_data[] = { | |
70 | { | |
59e26081 | 71 | .membase = KZM_ARM11_IO_ADDRESS(KZM_ARM11_16550), |
415c7d26 YY |
72 | .mapbase = KZM_ARM11_16550, |
73 | .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), | |
74 | .irqflags = IRQ_TYPE_EDGE_RISING, | |
75 | .uartclk = 14745600, | |
76 | .regshift = 0, | |
77 | .iotype = UPIO_MEM, | |
78 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | | |
79 | UPF_BUGGY_UART, | |
80 | }, | |
81 | {}, | |
82 | }; | |
83 | ||
84 | static struct resource serial8250_resources[] = { | |
85 | { | |
86 | .start = KZM_ARM11_16550, | |
87 | .end = KZM_ARM11_16550 + 0x10, | |
88 | .flags = IORESOURCE_MEM, | |
89 | }, | |
90 | { | |
91 | .start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), | |
92 | .end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), | |
93 | .flags = IORESOURCE_IRQ, | |
94 | }, | |
95 | }; | |
96 | ||
97 | static struct platform_device serial_device = { | |
98 | .name = "serial8250", | |
99 | .id = PLAT8250_DEV_PLATFORM, | |
100 | .dev = { | |
101 | .platform_data = serial_platform_data, | |
102 | }, | |
103 | .num_resources = ARRAY_SIZE(serial8250_resources), | |
104 | .resource = serial8250_resources, | |
105 | }; | |
106 | ||
107 | static int __init kzm_init_ext_uart(void) | |
108 | { | |
109 | u8 tmp; | |
110 | ||
111 | /* | |
112 | * GPIO 1-1: external UART interrupt line | |
113 | */ | |
114 | mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO)); | |
115 | gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1), "ext-uart-int"); | |
116 | gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)); | |
117 | ||
118 | /* | |
119 | * Unmask UART interrupt | |
120 | */ | |
59e26081 | 121 | tmp = __raw_readb(KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1)); |
415c7d26 | 122 | tmp |= 0x2; |
59e26081 | 123 | __raw_writeb(tmp, KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1)); |
415c7d26 YY |
124 | |
125 | return platform_device_register(&serial_device); | |
126 | } | |
127 | #else | |
128 | static inline int kzm_init_ext_uart(void) | |
129 | { | |
130 | return 0; | |
131 | } | |
132 | #endif | |
133 | ||
134 | /* | |
135 | * SMSC LAN9118 | |
136 | */ | |
137 | #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE) | |
138 | static struct smsc911x_platform_config kzm_smsc9118_config = { | |
139 | .phy_interface = PHY_INTERFACE_MODE_MII, | |
140 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH, | |
141 | .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, | |
142 | .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS, | |
143 | }; | |
144 | ||
145 | static struct resource kzm_smsc9118_resources[] = { | |
146 | { | |
f568dd7f UKK |
147 | .start = MX31_CS5_BASE_ADDR, |
148 | .end = MX31_CS5_BASE_ADDR + SZ_128K - 1, | |
415c7d26 YY |
149 | .flags = IORESOURCE_MEM, |
150 | }, | |
151 | { | |
152 | .start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_2), | |
153 | .end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_2), | |
154 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, | |
155 | }, | |
156 | }; | |
157 | ||
158 | static struct platform_device kzm_smsc9118_device = { | |
159 | .name = "smsc911x", | |
160 | .id = -1, | |
161 | .num_resources = ARRAY_SIZE(kzm_smsc9118_resources), | |
162 | .resource = kzm_smsc9118_resources, | |
163 | .dev = { | |
164 | .platform_data = &kzm_smsc9118_config, | |
165 | }, | |
166 | }; | |
167 | ||
168 | static int __init kzm_init_smsc9118(void) | |
169 | { | |
170 | /* | |
171 | * GPIO 1-2: SMSC9118 interrupt line | |
172 | */ | |
173 | mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO)); | |
174 | gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int"); | |
175 | gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2)); | |
176 | ||
177 | return platform_device_register(&kzm_smsc9118_device); | |
178 | } | |
179 | #else | |
180 | static inline int kzm_init_smsc9118(void) | |
181 | { | |
182 | return 0; | |
183 | } | |
184 | #endif | |
185 | ||
186 | #if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE) | |
16cf5c41 | 187 | static const struct imxuart_platform_data uart_pdata __initconst = { |
415c7d26 YY |
188 | .flags = IMXUART_HAVE_RTSCTS, |
189 | }; | |
190 | ||
191 | static void __init kzm_init_imx_uart(void) | |
192 | { | |
16cf5c41 UKK |
193 | imx31_add_imx_uart0(&uart_pdata); |
194 | imx31_add_imx_uart1(&uart_pdata); | |
415c7d26 YY |
195 | } |
196 | #else | |
197 | static inline void kzm_init_imx_uart(void) | |
198 | { | |
199 | } | |
200 | #endif | |
201 | ||
202 | static int kzm_pins[] __initdata = { | |
203 | MX31_PIN_CTS1__CTS1, | |
204 | MX31_PIN_RTS1__RTS1, | |
205 | MX31_PIN_TXD1__TXD1, | |
206 | MX31_PIN_RXD1__RXD1, | |
207 | MX31_PIN_DCD_DCE1__DCD_DCE1, | |
208 | MX31_PIN_RI_DCE1__RI_DCE1, | |
209 | MX31_PIN_DSR_DCE1__DSR_DCE1, | |
210 | MX31_PIN_DTR_DCE1__DTR_DCE1, | |
211 | MX31_PIN_CTS2__CTS2, | |
212 | MX31_PIN_RTS2__RTS2, | |
213 | MX31_PIN_TXD2__TXD2, | |
214 | MX31_PIN_RXD2__RXD2, | |
215 | MX31_PIN_DCD_DTE1__DCD_DTE2, | |
216 | MX31_PIN_RI_DTE1__RI_DTE2, | |
217 | MX31_PIN_DSR_DTE1__DSR_DTE2, | |
218 | MX31_PIN_DTR_DTE1__DTR_DTE2, | |
219 | }; | |
220 | ||
221 | /* | |
222 | * Board specific initialization. | |
223 | */ | |
224 | static void __init kzm_board_init(void) | |
225 | { | |
b78d8e59 SG |
226 | imx31_soc_init(); |
227 | ||
415c7d26 YY |
228 | mxc_iomux_setup_multiple_pins(kzm_pins, |
229 | ARRAY_SIZE(kzm_pins), "kzm"); | |
230 | kzm_init_ext_uart(); | |
231 | kzm_init_smsc9118(); | |
232 | kzm_init_imx_uart(); | |
233 | ||
234 | pr_info("Clock input source is 26MHz\n"); | |
235 | } | |
236 | ||
237 | /* | |
238 | * This structure defines static mappings for the kzm-arm11-01 board. | |
239 | */ | |
240 | static struct map_desc kzm_io_desc[] __initdata = { | |
241 | { | |
f568dd7f UKK |
242 | .virtual = MX31_CS4_BASE_ADDR_VIRT, |
243 | .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR), | |
244 | .length = MX31_CS4_SIZE, | |
415c7d26 YY |
245 | .type = MT_DEVICE |
246 | }, | |
247 | { | |
f568dd7f UKK |
248 | .virtual = MX31_CS5_BASE_ADDR_VIRT, |
249 | .pfn = __phys_to_pfn(MX31_CS5_BASE_ADDR), | |
250 | .length = MX31_CS5_SIZE, | |
415c7d26 YY |
251 | .type = MT_DEVICE |
252 | }, | |
253 | }; | |
254 | ||
255 | /* | |
256 | * Set up static virtual mappings. | |
257 | */ | |
258 | static void __init kzm_map_io(void) | |
259 | { | |
260 | mx31_map_io(); | |
261 | iotable_init(kzm_io_desc, ARRAY_SIZE(kzm_io_desc)); | |
262 | } | |
263 | ||
264 | static void __init kzm_timer_init(void) | |
265 | { | |
266 | mx31_clocks_init(26000000); | |
267 | } | |
268 | ||
269 | static struct sys_timer kzm_timer = { | |
e134fb2b | 270 | .init = kzm_timer_init, |
415c7d26 YY |
271 | }; |
272 | ||
415c7d26 | 273 | MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01") |
97976e22 UKK |
274 | .boot_params = MX3x_PHYS_OFFSET + 0x100, |
275 | .map_io = kzm_map_io, | |
276 | .init_early = imx31_init_early, | |
277 | .init_irq = mx31_init_irq, | |
278 | .timer = &kzm_timer, | |
279 | .init_machine = kzm_board_init, | |
415c7d26 | 280 | MACHINE_END |