1 /*
2 * linux/arch/arm/mach-mmp/ttc_dkb.c
3 *
4 * Support for the Marvell PXA910-based TTC_DKB Development Platform.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * publishhed by the Free Software Foundation.
9 */
10
11 #include <linux/init.h>
12 #include <linux/kernel.h>
13 #include <linux/platform_device.h>
14 #include <linux/mtd/mtd.h>
15 #include <linux/mtd/partitions.h>
16 #include <linux/mtd/onenand.h>
17 #include <linux/interrupt.h>
18 #include <linux/i2c/pca953x.h>
19 #include <linux/gpio.h>
20
21 #include <asm/mach-types.h>
22 #include <asm/mach/arch.h>
23 #include <asm/mach/flash.h>
24 #include <mach/addr-map.h>
25 #include <mach/mfp-pxa910.h>
26 #include <mach/pxa910.h>
27 #include <mach/irqs.h>
28
29 #include "common.h"
30
31 #define TTCDKB_GPIO_EXT0(x) (MMP_NR_BUILTIN_GPIO + ((x < 0) ? 0 : \
32 ((x < 16) ? x : 15)))
33 #define TTCDKB_GPIO_EXT1(x) (MMP_NR_BUILTIN_GPIO + 16 + ((x < 0) ? 0 : \
34 ((x < 16) ? x : 15)))
35
36 /*
37 * 16 board interrupts -- MAX7312 GPIO expander
38 * 16 board interrupts -- PCA9575 GPIO expander
39 * 24 board interrupts -- 88PM860x PMIC
40 */
41 #define TTCDKB_NR_IRQS (IRQ_BOARD_START + 16 + 16 + 24)
42
43 static unsigned long ttc_dkb_pin_config[] __initdata = {
44 /* UART2 */
45 GPIO47_UART2_RXD,
46 GPIO48_UART2_TXD,
47
48 /* DFI */
49 DF_IO0_ND_IO0,
50 DF_IO1_ND_IO1,
51 DF_IO2_ND_IO2,
52 DF_IO3_ND_IO3,
53 DF_IO4_ND_IO4,
54 DF_IO5_ND_IO5,
55 DF_IO6_ND_IO6,
56 DF_IO7_ND_IO7,
57 DF_IO8_ND_IO8,
58 DF_IO9_ND_IO9,
59 DF_IO10_ND_IO10,
60 DF_IO11_ND_IO11,
61 DF_IO12_ND_IO12,
62 DF_IO13_ND_IO13,
63 DF_IO14_ND_IO14,
64 DF_IO15_ND_IO15,
65 DF_nCS0_SM_nCS2_nCS0,
66 DF_ALE_SM_WEn_ND_ALE,
67 DF_CLE_SM_OEn_ND_CLE,
68 DF_WEn_DF_WEn,
69 DF_REn_DF_REn,
70 DF_RDY0_DF_RDY0,
71 };
72
73 static struct mtd_partition ttc_dkb_onenand_partitions[] = {
74 {
75 .name = "bootloader",
76 .offset = 0,
77 .size = SZ_1M,
78 .mask_flags = MTD_WRITEABLE,
79 }, {
80 .name = "reserved",
81 .offset = MTDPART_OFS_APPEND,
82 .size = SZ_128K,
83 .mask_flags = MTD_WRITEABLE,
84 }, {
85 .name = "reserved",
86 .offset = MTDPART_OFS_APPEND,
87 .size = SZ_8M,
88 .mask_flags = MTD_WRITEABLE,
89 }, {
90 .name = "kernel",
91 .offset = MTDPART_OFS_APPEND,
92 .size = (SZ_2M + SZ_1M),
93 .mask_flags = 0,
94 }, {
95 .name = "filesystem",
96 .offset = MTDPART_OFS_APPEND,
97 .size = SZ_32M + SZ_16M,
98 .mask_flags = 0,
99 }
100 };
101
102 static struct onenand_platform_data ttc_dkb_onenand_info = {
103 .parts = ttc_dkb_onenand_partitions,
104 .nr_parts = ARRAY_SIZE(ttc_dkb_onenand_partitions),
105 };
106
107 static struct resource ttc_dkb_resource_onenand[] = {
108 [0] = {
109 .start = SMC_CS0_PHYS_BASE,
110 .end = SMC_CS0_PHYS_BASE + SZ_1M,
111 .flags = IORESOURCE_MEM,
112 },
113 };
114
115 static struct platform_device ttc_dkb_device_onenand = {
116 .name = "onenand-flash",
117 .id = -1,
118 .resource = ttc_dkb_resource_onenand,
119 .num_resources = ARRAY_SIZE(ttc_dkb_resource_onenand),
120 .dev = {
121 .platform_data = &ttc_dkb_onenand_info,
122 },
123 };
124
125 static struct platform_device *ttc_dkb_devices[] = {
126 &pxa910_device_gpio,
127 &ttc_dkb_device_onenand,
128 };
129
130 static struct pca953x_platform_data max7312_data[] = {
131 {
132 .gpio_base = TTCDKB_GPIO_EXT0(0),
133 .irq_base = IRQ_BOARD_START,
134 },
135 };
136
137 static struct i2c_board_info ttc_dkb_i2c_info[] = {
138 {
139 .type = "max7312",
140 .addr = 0x23,
141 .irq = MMP_GPIO_TO_IRQ(80),
142 .platform_data = &max7312_data,
143 },
144 };
145
ttc_dkb_init(void)146 static void __init ttc_dkb_init(void)
147 {
148 mfp_config(ARRAY_AND_SIZE(ttc_dkb_pin_config));
149
150 /* on-chip devices */
151 pxa910_add_uart(1);
152
153 /* off-chip devices */
154 pxa910_add_twsi(0, NULL, ARRAY_AND_SIZE(ttc_dkb_i2c_info));
155 platform_add_devices(ARRAY_AND_SIZE(ttc_dkb_devices));
156 }
157
158 MACHINE_START(TTC_DKB, "PXA910-based TTC_DKB Development Platform")
159 .map_io = mmp_map_io,
160 .nr_irqs = TTCDKB_NR_IRQS,
161 .init_irq = pxa910_init_irq,
162 .timer = &pxa910_timer,
163 .init_machine = ttc_dkb_init,
164 .restart = mmp_restart,
165 MACHINE_END
166