drivers: power: report battery voltage in AOSP compatible format
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-ixp4xx / ixdp425-setup.c
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1/*
2 * arch/arm/mach-ixp4xx/ixdp425-setup.c
3 *
9bf4d676 4 * IXDP425/IXCDP1100 board-setup
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5 *
6 * Copyright (C) 2003-2005 MontaVista Software, Inc.
7 *
8 * Author: Deepak Saxena <dsaxena@plexity.net>
9 */
10
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/device.h>
14#include <linux/serial.h>
15#include <linux/tty.h>
16#include <linux/serial_8250.h>
5a4a2387 17#include <linux/i2c-gpio.h>
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18#include <linux/io.h>
19#include <linux/mtd/mtd.h>
20#include <linux/mtd/nand.h>
21#include <linux/mtd/partitions.h>
8029db12 22#include <linux/delay.h>
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23#include <asm/types.h>
24#include <asm/setup.h>
25#include <asm/memory.h>
a09e64fb 26#include <mach/hardware.h>
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27#include <asm/mach-types.h>
28#include <asm/irq.h>
29#include <asm/mach/arch.h>
30#include <asm/mach/flash.h>
31
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32#define IXDP425_SDA_PIN 7
33#define IXDP425_SCL_PIN 6
34
35/* NAND Flash pins */
36#define IXDP425_NAND_NCE_PIN 12
37
38#define IXDP425_NAND_CMD_BYTE 0x01
39#define IXDP425_NAND_ADDR_BYTE 0x02
40
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41static struct flash_platform_data ixdp425_flash_data = {
42 .map_name = "cfi_probe",
43 .width = 2,
44};
45
46static struct resource ixdp425_flash_resource = {
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47 .flags = IORESOURCE_MEM,
48};
49
50static struct platform_device ixdp425_flash = {
51 .name = "IXP4XX-Flash",
52 .id = 0,
53 .dev = {
54 .platform_data = &ixdp425_flash_data,
55 },
56 .num_resources = 1,
57 .resource = &ixdp425_flash_resource,
58};
59
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60#if defined(CONFIG_MTD_NAND_PLATFORM) || \
61 defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
62
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63static struct mtd_partition ixdp425_partitions[] = {
64 {
65 .name = "ixp400 NAND FS 0",
66 .offset = 0,
67 .size = SZ_8M
68 }, {
69 .name = "ixp400 NAND FS 1",
70 .offset = MTDPART_OFS_APPEND,
71 .size = MTDPART_SIZ_FULL
72 },
73};
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74
75static void
76ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
77{
78 struct nand_chip *this = mtd->priv;
79 int offset = (int)this->priv;
80
81 if (ctrl & NAND_CTRL_CHANGE) {
82 if (ctrl & NAND_NCE) {
83 gpio_line_set(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_LOW);
84 udelay(5);
85 } else
86 gpio_line_set(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_HIGH);
87
88 offset = (ctrl & NAND_CLE) ? IXDP425_NAND_CMD_BYTE : 0;
89 offset |= (ctrl & NAND_ALE) ? IXDP425_NAND_ADDR_BYTE : 0;
90 this->priv = (void *)offset;
91 }
92
93 if (cmd != NAND_CMD_NONE)
94 writeb(cmd, this->IO_ADDR_W + offset);
95}
96
97static struct platform_nand_data ixdp425_flash_nand_data = {
98 .chip = {
ef077179 99 .nr_chips = 1,
4ad48b4b 100 .chip_delay = 30,
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101 .partitions = ixdp425_partitions,
102 .nr_partitions = ARRAY_SIZE(ixdp425_partitions),
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103 },
104 .ctrl = {
105 .cmd_ctrl = ixdp425_flash_nand_cmd_ctrl
106 }
107};
108
109static struct resource ixdp425_flash_nand_resource = {
110 .flags = IORESOURCE_MEM,
111};
112
113static struct platform_device ixdp425_flash_nand = {
114 .name = "gen_nand",
115 .id = -1,
116 .dev = {
117 .platform_data = &ixdp425_flash_nand_data,
118 },
119 .num_resources = 1,
120 .resource = &ixdp425_flash_nand_resource,
121};
122#endif /* CONFIG_MTD_NAND_PLATFORM */
123
5a4a2387 124static struct i2c_gpio_platform_data ixdp425_i2c_gpio_data = {
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125 .sda_pin = IXDP425_SDA_PIN,
126 .scl_pin = IXDP425_SCL_PIN,
127};
128
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129static struct platform_device ixdp425_i2c_gpio = {
130 .name = "i2c-gpio",
1da177e4 131 .id = 0,
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132 .dev = {
133 .platform_data = &ixdp425_i2c_gpio_data,
1da177e4 134 },
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135};
136
137static struct resource ixdp425_uart_resources[] = {
138 {
139 .start = IXP4XX_UART1_BASE_PHYS,
140 .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
141 .flags = IORESOURCE_MEM
142 },
143 {
144 .start = IXP4XX_UART2_BASE_PHYS,
145 .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
146 .flags = IORESOURCE_MEM
147 }
148};
149
150static struct plat_serial8250_port ixdp425_uart_data[] = {
151 {
152 .mapbase = IXP4XX_UART1_BASE_PHYS,
153 .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
154 .irq = IRQ_IXP4XX_UART1,
8c741ed7 155 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
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156 .iotype = UPIO_MEM,
157 .regshift = 2,
158 .uartclk = IXP4XX_UART_XTAL,
159 },
160 {
161 .mapbase = IXP4XX_UART2_BASE_PHYS,
162 .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
a35d6c91 163 .irq = IRQ_IXP4XX_UART2,
8c741ed7 164 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
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165 .iotype = UPIO_MEM,
166 .regshift = 2,
167 .uartclk = IXP4XX_UART_XTAL,
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168 },
169 { },
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170};
171
172static struct platform_device ixdp425_uart = {
173 .name = "serial8250",
6df29deb 174 .id = PLAT8250_DEV_PLATFORM,
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175 .dev.platform_data = ixdp425_uart_data,
176 .num_resources = 2,
177 .resource = ixdp425_uart_resources
178};
179
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180/* Built-in 10/100 Ethernet MAC interfaces */
181static struct eth_plat_info ixdp425_plat_eth[] = {
182 {
183 .phy = 0,
184 .rxq = 3,
185 .txreadyq = 20,
186 }, {
187 .phy = 1,
188 .rxq = 4,
189 .txreadyq = 21,
190 }
191};
192
193static struct platform_device ixdp425_eth[] = {
194 {
195 .name = "ixp4xx_eth",
196 .id = IXP4XX_ETH_NPEB,
197 .dev.platform_data = ixdp425_plat_eth,
198 }, {
199 .name = "ixp4xx_eth",
200 .id = IXP4XX_ETH_NPEC,
201 .dev.platform_data = ixdp425_plat_eth + 1,
202 }
203};
204
1da177e4 205static struct platform_device *ixdp425_devices[] __initdata = {
5a4a2387 206 &ixdp425_i2c_gpio,
1da177e4 207 &ixdp425_flash,
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208#if defined(CONFIG_MTD_NAND_PLATFORM) || \
209 defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
210 &ixdp425_flash_nand,
211#endif
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212 &ixdp425_uart,
213 &ixdp425_eth[0],
214 &ixdp425_eth[1],
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215};
216
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217static void __init ixdp425_init(void)
218{
219 ixp4xx_sys_init();
220
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221 ixdp425_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
222 ixdp425_flash_resource.end =
223 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
1da177e4 224
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225#if defined(CONFIG_MTD_NAND_PLATFORM) || \
226 defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
227 ixdp425_flash_nand_resource.start = IXP4XX_EXP_BUS_BASE(3),
228 ixdp425_flash_nand_resource.end = IXP4XX_EXP_BUS_BASE(3) + 0x10 - 1;
229
230 gpio_line_config(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_OUT);
231
232 /* Configure expansion bus for NAND Flash */
233 *IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN |
234 IXP4XX_EXP_BUS_STROBE_T(1) | /* extend by 1 clock */
235 IXP4XX_EXP_BUS_CYCLES(0) | /* Intel cycles */
236 IXP4XX_EXP_BUS_SIZE(0) | /* 512bytes addr space*/
237 IXP4XX_EXP_BUS_WR_EN |
238 IXP4XX_EXP_BUS_BYTE_EN; /* 8 bit data bus */
239#endif
240
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241 if (cpu_is_ixp43x()) {
242 ixdp425_uart.num_resources = 1;
243 ixdp425_uart_data[1].flags = 0;
244 }
245
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246 platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
247}
248
b38708fc 249#ifdef CONFIG_ARCH_IXDP425
1da177e4 250MACHINE_START(IXDP425, "Intel IXDP425 Development Platform")
e9dea0c6 251 /* Maintainer: MontaVista Software, Inc. */
e605ecd7 252 .map_io = ixp4xx_map_io,
f449588c 253 .init_early = ixp4xx_init_early,
e9dea0c6 254 .init_irq = ixp4xx_init_irq,
6bb27d73 255 .init_time = ixp4xx_timer_init,
e022c729 256 .atag_offset = 0x100,
e9dea0c6 257 .init_machine = ixdp425_init,
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258#if defined(CONFIG_PCI)
259 .dma_zone_size = SZ_64M,
260#endif
d1b860fb 261 .restart = ixp4xx_restart,
1da177e4 262MACHINE_END
e0a20089 263#endif
1da177e4 264
e0a20089 265#ifdef CONFIG_MACH_IXDP465
1da177e4 266MACHINE_START(IXDP465, "Intel IXDP465 Development Platform")
e9dea0c6 267 /* Maintainer: MontaVista Software, Inc. */
e605ecd7 268 .map_io = ixp4xx_map_io,
f449588c 269 .init_early = ixp4xx_init_early,
e9dea0c6 270 .init_irq = ixp4xx_init_irq,
6bb27d73 271 .init_time = ixp4xx_timer_init,
e022c729 272 .atag_offset = 0x100,
e9dea0c6 273 .init_machine = ixdp425_init,
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274#if defined(CONFIG_PCI)
275 .dma_zone_size = SZ_64M,
276#endif
1da177e4 277MACHINE_END
e0a20089 278#endif
1da177e4 279
e0a20089 280#ifdef CONFIG_ARCH_PRPMC1100
1da177e4 281MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
e9dea0c6 282 /* Maintainer: MontaVista Software, Inc. */
e605ecd7 283 .map_io = ixp4xx_map_io,
f449588c 284 .init_early = ixp4xx_init_early,
e9dea0c6 285 .init_irq = ixp4xx_init_irq,
6bb27d73 286 .init_time = ixp4xx_timer_init,
e022c729 287 .atag_offset = 0x100,
e9dea0c6 288 .init_machine = ixdp425_init,
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289#if defined(CONFIG_PCI)
290 .dma_zone_size = SZ_64M,
291#endif
1da177e4 292MACHINE_END
e0a20089 293#endif
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294
295#ifdef CONFIG_MACH_KIXRP435
296MACHINE_START(KIXRP435, "Intel KIXRP435 Reference Platform")
297 /* Maintainer: MontaVista Software, Inc. */
45fba084 298 .map_io = ixp4xx_map_io,
f449588c 299 .init_early = ixp4xx_init_early,
45fba084 300 .init_irq = ixp4xx_init_irq,
6bb27d73 301 .init_time = ixp4xx_timer_init,
e022c729 302 .atag_offset = 0x100,
45fba084 303 .init_machine = ixdp425_init,
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304#if defined(CONFIG_PCI)
305 .dma_zone_size = SZ_64M,
306#endif
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307MACHINE_END
308#endif