Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[pandora-kernel.git] / arch / arm / mach-pnx4008 / core.c
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/io.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.h>
36
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/time.h>
40
41 #include <asm/arch/irq.h>
42 #include <asm/arch/clock.h>
43 #include <asm/arch/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 *devices[] __initdata = {
137         &spipnx_1,
138         &spipnx_2,
139         &serial_device,
140 };
141
142
143 extern void pnx4008_uart_init(void);
144
145 static void __init pnx4008_init(void)
146 {
147         /*disable all START interrupt sources,
148            and clear all START interrupt flags */
149         __raw_writel(0, START_INT_ER_REG(SE_PIN_BASE_INT));
150         __raw_writel(0, START_INT_ER_REG(SE_INT_BASE_INT));
151         __raw_writel(0xffffffff, START_INT_RSR_REG(SE_PIN_BASE_INT));
152         __raw_writel(0xffffffff, START_INT_RSR_REG(SE_INT_BASE_INT));
153
154         platform_add_devices(devices, ARRAY_SIZE(devices));
155         spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
156         /* Switch on the UART clocks */
157         pnx4008_uart_init();
158 }
159
160 static struct map_desc pnx4008_io_desc[] __initdata = {
161         {
162                 .virtual        = IO_ADDRESS(PNX4008_IRAM_BASE),
163                 .pfn            = __phys_to_pfn(PNX4008_IRAM_BASE),
164                 .length         = SZ_64K,
165                 .type           = MT_DEVICE,
166         }, {
167                 .virtual        = IO_ADDRESS(PNX4008_NDF_FLASH_BASE),
168                 .pfn            = __phys_to_pfn(PNX4008_NDF_FLASH_BASE),
169                 .length         = SZ_1M - SZ_128K,
170                 .type           = MT_DEVICE,
171         }, {
172                 .virtual        = IO_ADDRESS(PNX4008_JPEG_CONFIG_BASE),
173                 .pfn            = __phys_to_pfn(PNX4008_JPEG_CONFIG_BASE),
174                 .length         = SZ_128K * 3,
175                 .type           = MT_DEVICE,
176         }, {
177                 .virtual        = IO_ADDRESS(PNX4008_DMA_CONFIG_BASE),
178                 .pfn            = __phys_to_pfn(PNX4008_DMA_CONFIG_BASE),
179                 .length         = SZ_1M,
180                 .type           = MT_DEVICE,
181         }, {
182                 .virtual        = IO_ADDRESS(PNX4008_AHB2FAB_BASE),
183                 .pfn            = __phys_to_pfn(PNX4008_AHB2FAB_BASE),
184                 .length         = SZ_1M,
185                 .type           = MT_DEVICE,
186         },
187 };
188
189 void __init pnx4008_map_io(void)
190 {
191         iotable_init(pnx4008_io_desc, ARRAY_SIZE(pnx4008_io_desc));
192 }
193
194 extern struct sys_timer pnx4008_timer;
195
196 MACHINE_START(PNX4008, "Philips PNX4008")
197         /* Maintainer: MontaVista Software Inc. */
198         .phys_io                = 0x40090000,
199         .io_pg_offst            = (0xf4090000 >> 18) & 0xfffc,
200         .boot_params            = 0x80000100,
201         .map_io                 = pnx4008_map_io,
202         .init_irq               = pnx4008_init_irq,
203         .init_machine           = pnx4008_init,
204         .timer                  = &pnx4008_timer,
205 MACHINE_END