1 /*
2 * arch/arm/mach-pnx4008/core.c
3 *
4 * PNX4008 core startup code
5 *
6 * Authors: Vitaly Wool, Dmitry Chigirev,
7 * Grigory Tolstolytkin, Dmitry Pervushin <source@mvista.com>
8 *
9 * Based on reference code received from Philips:
10 * Copyright (C) 2003 Philips Semiconductors
11 *
12 * 2005 (c) MontaVista Software, Inc. This file is licensed under
13 * the terms of the GNU General Public License version 2. This program
14 * is licensed "as is" without any warranty of any kind, whether express
15 * or implied.
16 */
17
18 #include <linux/kernel.h>
19 #include <linux/types.h>
20 #include <linux/mm.h>
21 #include <linux/interrupt.h>
22 #include <linux/list.h>
23 #include <linux/init.h>
24 #include <linux/ioport.h>
25 #include <linux/serial_8250.h>
26 #include <linux/device.h>
27 #include <linux/spi/spi.h>
28 #include <linux/io.h>
29
30 #include <mach/hardware.h>
31 #include <asm/setup.h>
32 #include <asm/mach-types.h>
33 #include <asm/pgtable.h>
34 #include <asm/page.h>
35 #include <asm/system_misc.h>
36
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/time.h>
40
41 #include <mach/irq.h>
42 #include <mach/clock.h>
43 #include <mach/dma.h>
44
45 struct resource spipnx_0_resources[] = {
46 {
47 .start = PNX4008_SPI1_BASE,
48 .end = PNX4008_SPI1_BASE + SZ_4K,
49 .flags = IORESOURCE_MEM,
50 }, {
51 .start = PER_SPI1_REC_XMIT,
52 .flags = IORESOURCE_DMA,
53 }, {
54 .start = SPI1_INT,
55 .flags = IORESOURCE_IRQ,
56 }, {
57 .flags = 0,
58 },
59 };
60
61 struct resource spipnx_1_resources[] = {
62 {
63 .start = PNX4008_SPI2_BASE,
64 .end = PNX4008_SPI2_BASE + SZ_4K,
65 .flags = IORESOURCE_MEM,
66 }, {
67 .start = PER_SPI2_REC_XMIT,
68 .flags = IORESOURCE_DMA,
69 }, {
70 .start = SPI2_INT,
71 .flags = IORESOURCE_IRQ,
72 }, {
73 .flags = 0,
74 }
75 };
76
77 static struct spi_board_info spi_board_info[] __initdata = {
78 {
79 .modalias = "m25p80",
80 .max_speed_hz = 1000000,
81 .bus_num = 1,
82 .chip_select = 0,
83 },
84 };
85
86 static struct platform_device spipnx_1 = {
87 .name = "spipnx",
88 .id = 1,
89 .num_resources = ARRAY_SIZE(spipnx_0_resources),
90 .resource = spipnx_0_resources,
91 .dev = {
92 .coherent_dma_mask = 0xFFFFFFFF,
93 },
94 };
95
96 static struct platform_device spipnx_2 = {
97 .name = "spipnx",
98 .id = 2,
99 .num_resources = ARRAY_SIZE(spipnx_1_resources),
100 .resource = spipnx_1_resources,
101 .dev = {
102 .coherent_dma_mask = 0xFFFFFFFF,
103 },
104 };
105
106 static struct plat_serial8250_port platform_serial_ports[] = {
107 {
108 .membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART5_BASE)),
109 .mapbase = (unsigned long)PNX4008_UART5_BASE,
110 .irq = IIR5_INT,
111 .uartclk = PNX4008_UART_CLK,
112 .regshift = 2,
113 .iotype = UPIO_MEM,
114 .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
115 },
116 {
117 .membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART3_BASE)),
118 .mapbase = (unsigned long)PNX4008_UART3_BASE,
119 .irq = IIR3_INT,
120 .uartclk = PNX4008_UART_CLK,
121 .regshift = 2,
122 .iotype = UPIO_MEM,
123 .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
124 },
125 {}
126 };
127
128 static struct platform_device serial_device = {
129 .name = "serial8250",
130 .id = PLAT8250_DEV_PLATFORM,
131 .dev = {
132 .platform_data = &platform_serial_ports,
133 },
134 };
135
136 static struct platform_device nand_flash_device = {
137 .name = "pnx4008-flash",
138 .id = -1,
139 .dev = {
140 .coherent_dma_mask = 0xFFFFFFFF,
141 },
142 };
143
144 /* The dmamask must be set for OHCI to work */
145 static u64 ohci_dmamask = ~(u32) 0;
146
147 static struct resource ohci_resources[] = {
148 {
149 .start = IO_ADDRESS(PNX4008_USB_CONFIG_BASE),
150 .end = IO_ADDRESS(PNX4008_USB_CONFIG_BASE + 0x100),
151 .flags = IORESOURCE_MEM,
152 }, {
153 .start = USB_HOST_INT,
154 .flags = IORESOURCE_IRQ,
155 },
156 };
157
158 static struct platform_device ohci_device = {
159 .name = "pnx4008-usb-ohci",
160 .id = -1,
161 .dev = {
162 .dma_mask = &ohci_dmamask,
163 .coherent_dma_mask = 0xffffffff,
164 },
165 .num_resources = ARRAY_SIZE(ohci_resources),
166 .resource = ohci_resources,
167 };
168
169 static struct platform_device sdum_device = {
170 .name = "pnx4008-sdum",
171 .id = 0,
172 .dev = {
173 .coherent_dma_mask = 0xffffffff,
174 },
175 };
176
177 static struct platform_device rgbfb_device = {
178 .name = "pnx4008-rgbfb",
179 .id = 0,
180 .dev = {
181 .coherent_dma_mask = 0xffffffff,
182 }
183 };
184
185 struct resource watchdog_resources[] = {
186 {
187 .start = PNX4008_WDOG_BASE,
188 .end = PNX4008_WDOG_BASE + SZ_4K - 1,
189 .flags = IORESOURCE_MEM,
190 },
191 };
192
193 static struct platform_device watchdog_device = {
194 .name = "pnx4008-watchdog",
195 .id = -1,
196 .num_resources = ARRAY_SIZE(watchdog_resources),
197 .resource = watchdog_resources,
198 };
199
200 static struct platform_device *devices[] __initdata = {
201 &spipnx_1,
202 &spipnx_2,
203 &serial_device,
204 &ohci_device,
205 &nand_flash_device,
206 &sdum_device,
207 &rgbfb_device,
208 &watchdog_device,
209 };
210
211
212 extern void pnx4008_uart_init(void);
213
pnx4008_init(void)214 static void __init pnx4008_init(void)
215 {
216 /*disable all START interrupt sources,
217 and clear all START interrupt flags */
218 __raw_writel(0, START_INT_ER_REG(SE_PIN_BASE_INT));
219 __raw_writel(0, START_INT_ER_REG(SE_INT_BASE_INT));
220 __raw_writel(0xffffffff, START_INT_RSR_REG(SE_PIN_BASE_INT));
221 __raw_writel(0xffffffff, START_INT_RSR_REG(SE_INT_BASE_INT));
222
223 platform_add_devices(devices, ARRAY_SIZE(devices));
224 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
225 /* Switch on the UART clocks */
226 pnx4008_uart_init();
227 }
228
229 static struct map_desc pnx4008_io_desc[] __initdata = {
230 {
231 .virtual = IO_ADDRESS(PNX4008_IRAM_BASE),
232 .pfn = __phys_to_pfn(PNX4008_IRAM_BASE),
233 .length = SZ_64K,
234 .type = MT_DEVICE,
235 }, {
236 .virtual = IO_ADDRESS(PNX4008_NDF_FLASH_BASE),
237 .pfn = __phys_to_pfn(PNX4008_NDF_FLASH_BASE),
238 .length = SZ_1M - SZ_128K,
239 .type = MT_DEVICE,
240 }, {
241 .virtual = IO_ADDRESS(PNX4008_JPEG_CONFIG_BASE),
242 .pfn = __phys_to_pfn(PNX4008_JPEG_CONFIG_BASE),
243 .length = SZ_128K * 3,
244 .type = MT_DEVICE,
245 }, {
246 .virtual = IO_ADDRESS(PNX4008_DMA_CONFIG_BASE),
247 .pfn = __phys_to_pfn(PNX4008_DMA_CONFIG_BASE),
248 .length = SZ_1M,
249 .type = MT_DEVICE,
250 }, {
251 .virtual = IO_ADDRESS(PNX4008_AHB2FAB_BASE),
252 .pfn = __phys_to_pfn(PNX4008_AHB2FAB_BASE),
253 .length = SZ_1M,
254 .type = MT_DEVICE,
255 },
256 };
257
pnx4008_map_io(void)258 void __init pnx4008_map_io(void)
259 {
260 iotable_init(pnx4008_io_desc, ARRAY_SIZE(pnx4008_io_desc));
261 }
262
pnx4008_restart(char mode,const char * cmd)263 static void pnx4008_restart(char mode, const char *cmd)
264 {
265 soft_restart(0);
266 }
267
268 extern struct sys_timer pnx4008_timer;
269
270 MACHINE_START(PNX4008, "Philips PNX4008")
271 /* Maintainer: MontaVista Software Inc. */
272 .atag_offset = 0x100,
273 .map_io = pnx4008_map_io,
274 .init_irq = pnx4008_init_irq,
275 .init_machine = pnx4008_init,
276 .timer = &pnx4008_timer,
277 .restart = pnx4008_restart,
278 MACHINE_END
279