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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> | |
f2d9661b | 39 | #include <mach/hardware.h> |
415c7d26 | 40 | #include <mach/iomux-mx3.h> |
415c7d26 | 41 | |
16cf5c41 | 42 | #include "devices-imx31.h" |
415c7d26 | 43 | |
f5d7a13b UKK |
44 | #define KZM_ARM11_IO_ADDRESS(x) (IOMEM( \ |
45 | IMX_IO_P2V_MODULE(x, MX31_CS4) ?: \ | |
46 | IMX_IO_P2V_MODULE(x, MX31_CS5)) ?: \ | |
59e26081 UKK |
47 | MX31_IO_ADDRESS(x)) |
48 | ||
7b562d0f UKK |
49 | /* |
50 | * KZM-ARM11-01 Board Control Registers on FPGA | |
51 | */ | |
52 | #define KZM_ARM11_CTL1 (MX31_CS4_BASE_ADDR + 0x1000) | |
53 | #define KZM_ARM11_CTL2 (MX31_CS4_BASE_ADDR + 0x1001) | |
54 | #define KZM_ARM11_RSW1 (MX31_CS4_BASE_ADDR + 0x1002) | |
55 | #define KZM_ARM11_BACK_LIGHT (MX31_CS4_BASE_ADDR + 0x1004) | |
56 | #define KZM_ARM11_FPGA_REV (MX31_CS4_BASE_ADDR + 0x1008) | |
57 | #define KZM_ARM11_7SEG_LED (MX31_CS4_BASE_ADDR + 0x1010) | |
58 | #define KZM_ARM11_LEDS (MX31_CS4_BASE_ADDR + 0x1020) | |
59 | #define KZM_ARM11_DIPSW2 (MX31_CS4_BASE_ADDR + 0x1003) | |
60 | ||
61 | /* | |
62 | * External UART for touch panel on FPGA | |
63 | */ | |
64 | #define KZM_ARM11_16550 (MX31_CS4_BASE_ADDR + 0x1050) | |
65 | ||
415c7d26 YY |
66 | #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) |
67 | /* | |
68 | * KZM-ARM11-01 has an external UART on FPGA | |
69 | */ | |
70 | static struct plat_serial8250_port serial_platform_data[] = { | |
71 | { | |
59e26081 | 72 | .membase = KZM_ARM11_IO_ADDRESS(KZM_ARM11_16550), |
415c7d26 YY |
73 | .mapbase = KZM_ARM11_16550, |
74 | .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), | |
75 | .irqflags = IRQ_TYPE_EDGE_RISING, | |
76 | .uartclk = 14745600, | |
77 | .regshift = 0, | |
78 | .iotype = UPIO_MEM, | |
79 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | | |
80 | UPF_BUGGY_UART, | |
81 | }, | |
82 | {}, | |
83 | }; | |
84 | ||
85 | static struct resource serial8250_resources[] = { | |
86 | { | |
87 | .start = KZM_ARM11_16550, | |
88 | .end = KZM_ARM11_16550 + 0x10, | |
89 | .flags = IORESOURCE_MEM, | |
90 | }, | |
91 | { | |
92 | .start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), | |
93 | .end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), | |
94 | .flags = IORESOURCE_IRQ, | |
95 | }, | |
96 | }; | |
97 | ||
98 | static struct platform_device serial_device = { | |
99 | .name = "serial8250", | |
100 | .id = PLAT8250_DEV_PLATFORM, | |
101 | .dev = { | |
102 | .platform_data = serial_platform_data, | |
103 | }, | |
104 | .num_resources = ARRAY_SIZE(serial8250_resources), | |
105 | .resource = serial8250_resources, | |
106 | }; | |
107 | ||
108 | static int __init kzm_init_ext_uart(void) | |
109 | { | |
110 | u8 tmp; | |
111 | ||
112 | /* | |
113 | * GPIO 1-1: external UART interrupt line | |
114 | */ | |
115 | mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO)); | |
116 | gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1), "ext-uart-int"); | |
117 | gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)); | |
118 | ||
119 | /* | |
120 | * Unmask UART interrupt | |
121 | */ | |
59e26081 | 122 | tmp = __raw_readb(KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1)); |
415c7d26 | 123 | tmp |= 0x2; |
59e26081 | 124 | __raw_writeb(tmp, KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1)); |
415c7d26 YY |
125 | |
126 | return platform_device_register(&serial_device); | |
127 | } | |
128 | #else | |
129 | static inline int kzm_init_ext_uart(void) | |
130 | { | |
131 | return 0; | |
132 | } | |
133 | #endif | |
134 | ||
135 | /* | |
136 | * SMSC LAN9118 | |
137 | */ | |
138 | #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE) | |
139 | static struct smsc911x_platform_config kzm_smsc9118_config = { | |
140 | .phy_interface = PHY_INTERFACE_MODE_MII, | |
141 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH, | |
142 | .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, | |
143 | .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS, | |
144 | }; | |
145 | ||
146 | static struct resource kzm_smsc9118_resources[] = { | |
147 | { | |
f568dd7f UKK |
148 | .start = MX31_CS5_BASE_ADDR, |
149 | .end = MX31_CS5_BASE_ADDR + SZ_128K - 1, | |
415c7d26 YY |
150 | .flags = IORESOURCE_MEM, |
151 | }, | |
152 | { | |
153 | .start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_2), | |
154 | .end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_2), | |
155 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, | |
156 | }, | |
157 | }; | |
158 | ||
159 | static struct platform_device kzm_smsc9118_device = { | |
160 | .name = "smsc911x", | |
161 | .id = -1, | |
162 | .num_resources = ARRAY_SIZE(kzm_smsc9118_resources), | |
163 | .resource = kzm_smsc9118_resources, | |
164 | .dev = { | |
165 | .platform_data = &kzm_smsc9118_config, | |
166 | }, | |
167 | }; | |
168 | ||
169 | static int __init kzm_init_smsc9118(void) | |
170 | { | |
171 | /* | |
172 | * GPIO 1-2: SMSC9118 interrupt line | |
173 | */ | |
174 | mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO)); | |
175 | gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int"); | |
176 | gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2)); | |
177 | ||
178 | return platform_device_register(&kzm_smsc9118_device); | |
179 | } | |
180 | #else | |
181 | static inline int kzm_init_smsc9118(void) | |
182 | { | |
183 | return 0; | |
184 | } | |
185 | #endif | |
186 | ||
187 | #if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE) | |
16cf5c41 | 188 | static const struct imxuart_platform_data uart_pdata __initconst = { |
415c7d26 YY |
189 | .flags = IMXUART_HAVE_RTSCTS, |
190 | }; | |
191 | ||
192 | static void __init kzm_init_imx_uart(void) | |
193 | { | |
16cf5c41 UKK |
194 | imx31_add_imx_uart0(&uart_pdata); |
195 | imx31_add_imx_uart1(&uart_pdata); | |
415c7d26 YY |
196 | } |
197 | #else | |
198 | static inline void kzm_init_imx_uart(void) | |
199 | { | |
200 | } | |
201 | #endif | |
202 | ||
203 | static int kzm_pins[] __initdata = { | |
204 | MX31_PIN_CTS1__CTS1, | |
205 | MX31_PIN_RTS1__RTS1, | |
206 | MX31_PIN_TXD1__TXD1, | |
207 | MX31_PIN_RXD1__RXD1, | |
208 | MX31_PIN_DCD_DCE1__DCD_DCE1, | |
209 | MX31_PIN_RI_DCE1__RI_DCE1, | |
210 | MX31_PIN_DSR_DCE1__DSR_DCE1, | |
211 | MX31_PIN_DTR_DCE1__DTR_DCE1, | |
212 | MX31_PIN_CTS2__CTS2, | |
213 | MX31_PIN_RTS2__RTS2, | |
214 | MX31_PIN_TXD2__TXD2, | |
215 | MX31_PIN_RXD2__RXD2, | |
216 | MX31_PIN_DCD_DTE1__DCD_DTE2, | |
217 | MX31_PIN_RI_DTE1__RI_DTE2, | |
218 | MX31_PIN_DSR_DTE1__DSR_DTE2, | |
219 | MX31_PIN_DTR_DTE1__DTR_DTE2, | |
220 | }; | |
221 | ||
222 | /* | |
223 | * Board specific initialization. | |
224 | */ | |
225 | static void __init kzm_board_init(void) | |
226 | { | |
b78d8e59 SG |
227 | imx31_soc_init(); |
228 | ||
415c7d26 YY |
229 | mxc_iomux_setup_multiple_pins(kzm_pins, |
230 | ARRAY_SIZE(kzm_pins), "kzm"); | |
231 | kzm_init_ext_uart(); | |
232 | kzm_init_smsc9118(); | |
233 | kzm_init_imx_uart(); | |
234 | ||
235 | pr_info("Clock input source is 26MHz\n"); | |
236 | } | |
237 | ||
238 | /* | |
239 | * This structure defines static mappings for the kzm-arm11-01 board. | |
240 | */ | |
241 | static struct map_desc kzm_io_desc[] __initdata = { | |
242 | { | |
f568dd7f UKK |
243 | .virtual = MX31_CS4_BASE_ADDR_VIRT, |
244 | .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR), | |
245 | .length = MX31_CS4_SIZE, | |
415c7d26 YY |
246 | .type = MT_DEVICE |
247 | }, | |
248 | { | |
f568dd7f UKK |
249 | .virtual = MX31_CS5_BASE_ADDR_VIRT, |
250 | .pfn = __phys_to_pfn(MX31_CS5_BASE_ADDR), | |
251 | .length = MX31_CS5_SIZE, | |
415c7d26 YY |
252 | .type = MT_DEVICE |
253 | }, | |
254 | }; | |
255 | ||
256 | /* | |
257 | * Set up static virtual mappings. | |
258 | */ | |
259 | static void __init kzm_map_io(void) | |
260 | { | |
261 | mx31_map_io(); | |
262 | iotable_init(kzm_io_desc, ARRAY_SIZE(kzm_io_desc)); | |
263 | } | |
264 | ||
265 | static void __init kzm_timer_init(void) | |
266 | { | |
267 | mx31_clocks_init(26000000); | |
268 | } | |
269 | ||
270 | static struct sys_timer kzm_timer = { | |
e134fb2b | 271 | .init = kzm_timer_init, |
415c7d26 YY |
272 | }; |
273 | ||
415c7d26 | 274 | MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01") |
dc8f1907 | 275 | .atag_offset = 0x100, |
97976e22 UKK |
276 | .map_io = kzm_map_io, |
277 | .init_early = imx31_init_early, | |
278 | .init_irq = mx31_init_irq, | |
ffa2ea3f | 279 | .handle_irq = imx31_handle_irq, |
97976e22 UKK |
280 | .timer = &kzm_timer, |
281 | .init_machine = kzm_board_init, | |
415c7d26 | 282 | MACHINE_END |