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-rw-r--r--arch/arm/mach-pnx4008/core.c207
1 files changed, 207 insertions, 0 deletions
diff --git a/arch/arm/mach-pnx4008/core.c b/arch/arm/mach-pnx4008/core.c
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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
29#include <asm/hardware.h>
30#include <asm/irq.h>
31#include <asm/io.h>
32#include <asm/setup.h>
33#include <asm/mach-types.h>
34#include <asm/pgtable.h>
35#include <asm/page.h>
36#include <asm/system.h>
37
38#include <asm/mach/arch.h>
39#include <asm/mach/irq.h>
40#include <asm/mach/map.h>
41#include <asm/mach/time.h>
42
43#include <asm/arch/irq.h>
44#include <asm/arch/clock.h>
45#include <asm/arch/dma.h>
46
47struct resource spipnx_0_resources[] = {
48 {
49 .start = PNX4008_SPI1_BASE,
50 .end = PNX4008_SPI1_BASE + SZ_4K,
51 .flags = IORESOURCE_MEM,
52 }, {
53 .start = PER_SPI1_REC_XMIT,
54 .flags = IORESOURCE_DMA,
55 }, {
56 .start = SPI1_INT,
57 .flags = IORESOURCE_IRQ,
58 }, {
59 .flags = 0,
60 },
61};
62
63struct resource spipnx_1_resources[] = {
64 {
65 .start = PNX4008_SPI2_BASE,
66 .end = PNX4008_SPI2_BASE + SZ_4K,
67 .flags = IORESOURCE_MEM,
68 }, {
69 .start = PER_SPI2_REC_XMIT,
70 .flags = IORESOURCE_DMA,
71 }, {
72 .start = SPI2_INT,
73 .flags = IORESOURCE_IRQ,
74 }, {
75 .flags = 0,
76 }
77};
78
79static struct spi_board_info spi_board_info[] __initdata = {
80 {
81 .modalias = "m25p80",
82 .max_speed_hz = 1000000,
83 .bus_num = 1,
84 .chip_select = 0,
85 },
86};
87
88static struct platform_device spipnx_1 = {
89 .name = "spipnx",
90 .id = 1,
91 .num_resources = ARRAY_SIZE(spipnx_0_resources),
92 .resource = spipnx_0_resources,
93 .dev = {
94 .coherent_dma_mask = 0xFFFFFFFF,
95 },
96};
97
98static struct platform_device spipnx_2 = {
99 .name = "spipnx",
100 .id = 2,
101 .num_resources = ARRAY_SIZE(spipnx_1_resources),
102 .resource = spipnx_1_resources,
103 .dev = {
104 .coherent_dma_mask = 0xFFFFFFFF,
105 },
106};
107
108static struct plat_serial8250_port platform_serial_ports[] = {
109 {
110 .membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART5_BASE)),
111 .mapbase = (unsigned long)PNX4008_UART5_BASE,
112 .irq = IIR5_INT,
113 .uartclk = PNX4008_UART_CLK,
114 .regshift = 2,
115 .iotype = UPIO_MEM,
116 .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
117 },
118 {
119 .membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART3_BASE)),
120 .mapbase = (unsigned long)PNX4008_UART3_BASE,
121 .irq = IIR3_INT,
122 .uartclk = PNX4008_UART_CLK,
123 .regshift = 2,
124 .iotype = UPIO_MEM,
125 .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST,
126 },
127 {}
128};
129
130static struct platform_device serial_device = {
131 .name = "serial8250",
132 .id = PLAT8250_DEV_PLATFORM,
133 .dev = {
134 .platform_data = &platform_serial_ports,
135 },
136};
137
138static struct platform_device *devices[] __initdata = {
139 &spipnx_1,
140 &spipnx_2,
141 &serial_device,
142};
143
144
145extern void pnx4008_uart_init(void);
146
147static void __init pnx4008_init(void)
148{
149 /*disable all START interrupt sources,
150 and clear all START interrupt flags */
151 __raw_writel(0, START_INT_ER_REG(SE_PIN_BASE_INT));
152 __raw_writel(0, START_INT_ER_REG(SE_INT_BASE_INT));
153 __raw_writel(0xffffffff, START_INT_RSR_REG(SE_PIN_BASE_INT));
154 __raw_writel(0xffffffff, START_INT_RSR_REG(SE_INT_BASE_INT));
155
156 platform_add_devices(devices, ARRAY_SIZE(devices));
157 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
158 /* Switch on the UART clocks */
159 pnx4008_uart_init();
160}
161
162static struct map_desc pnx4008_io_desc[] __initdata = {
163 {
164 .virtual = IO_ADDRESS(PNX4008_IRAM_BASE),
165 .pfn = __phys_to_pfn(PNX4008_IRAM_BASE),
166 .length = SZ_64K,
167 .type = MT_DEVICE,
168 }, {
169 .virtual = IO_ADDRESS(PNX4008_NDF_FLASH_BASE),
170 .pfn = __phys_to_pfn(PNX4008_NDF_FLASH_BASE),
171 .length = SZ_1M - SZ_128K,
172 .type = MT_DEVICE,
173 }, {
174 .virtual = IO_ADDRESS(PNX4008_JPEG_CONFIG_BASE),
175 .pfn = __phys_to_pfn(PNX4008_JPEG_CONFIG_BASE),
176 .length = SZ_128K * 3,
177 .type = MT_DEVICE,
178 }, {
179 .virtual = IO_ADDRESS(PNX4008_DMA_CONFIG_BASE),
180 .pfn = __phys_to_pfn(PNX4008_DMA_CONFIG_BASE),
181 .length = SZ_1M,
182 .type = MT_DEVICE,
183 }, {
184 .virtual = IO_ADDRESS(PNX4008_AHB2FAB_BASE),
185 .pfn = __phys_to_pfn(PNX4008_AHB2FAB_BASE),
186 .length = SZ_1M,
187 .type = MT_DEVICE,
188 },
189};
190
191void __init pnx4008_map_io(void)
192{
193 iotable_init(pnx4008_io_desc, ARRAY_SIZE(pnx4008_io_desc));
194}
195
196extern struct sys_timer pnx4008_timer;
197
198MACHINE_START(PNX4008, "Philips PNX4008")
199 /* Maintainer: MontaVista Software Inc. */
200 .phys_io = 0x40090000,
201 .io_pg_offst = (0xf4090000 >> 18) & 0xfffc,
202 .boot_params = 0x80000100,
203 .map_io = pnx4008_map_io,
204 .init_irq = pnx4008_init_irq,
205 .init_machine = pnx4008_init,
206 .timer = &pnx4008_timer,
207MACHINE_END
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