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19#include <linux/platform_device.h>
20#include <linux/kernel.h>
21#include <linux/init.h>
22#include <linux/io.h>
23#include <linux/i2c.h>
24#include <linux/i2c-gpio.h>
25#include <linux/fb.h>
26
27#include <linux/mtd/partitions.h>
28#include <linux/mtd/nand.h>
29
30#include <mach/hardware.h>
31#include <linux/platform_data/video-ep93xx.h>
32#include <mach/gpio-ep93xx.h>
33
34#include <asm/mach-types.h>
35#include <asm/mach/arch.h>
36
37#include "soc.h"
38
39#define SNAPPERCL15_NAND_BASE (EP93XX_CS7_PHYS_BASE + SZ_16M)
40
41#define SNAPPERCL15_NAND_WPN (1 << 8)
42#define SNAPPERCL15_NAND_ALE (1 << 9)
43#define SNAPPERCL15_NAND_CLE (1 << 10)
44#define SNAPPERCL15_NAND_CEN (1 << 11)
45#define SNAPPERCL15_NAND_RDY (1 << 14)
46
47#define NAND_CTRL_ADDR(chip) (chip->IO_ADDR_W + 0x40)
48
49static void snappercl15_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
50 unsigned int ctrl)
51{
52 struct nand_chip *chip = mtd->priv;
53 static u16 nand_state = SNAPPERCL15_NAND_WPN;
54 u16 set;
55
56 if (ctrl & NAND_CTRL_CHANGE) {
57 set = SNAPPERCL15_NAND_CEN | SNAPPERCL15_NAND_WPN;
58
59 if (ctrl & NAND_NCE)
60 set &= ~SNAPPERCL15_NAND_CEN;
61 if (ctrl & NAND_CLE)
62 set |= SNAPPERCL15_NAND_CLE;
63 if (ctrl & NAND_ALE)
64 set |= SNAPPERCL15_NAND_ALE;
65
66 nand_state &= ~(SNAPPERCL15_NAND_CEN |
67 SNAPPERCL15_NAND_CLE |
68 SNAPPERCL15_NAND_ALE);
69 nand_state |= set;
70 __raw_writew(nand_state, NAND_CTRL_ADDR(chip));
71 }
72
73 if (cmd != NAND_CMD_NONE)
74 __raw_writew((cmd & 0xff) | nand_state, chip->IO_ADDR_W);
75}
76
77static int snappercl15_nand_dev_ready(struct mtd_info *mtd)
78{
79 struct nand_chip *chip = mtd->priv;
80
81 return !!(__raw_readw(NAND_CTRL_ADDR(chip)) & SNAPPERCL15_NAND_RDY);
82}
83
84static struct mtd_partition snappercl15_nand_parts[] = {
85 {
86 .name = "Kernel",
87 .offset = 0,
88 .size = SZ_2M,
89 },
90 {
91 .name = "Filesystem",
92 .offset = MTDPART_OFS_APPEND,
93 .size = MTDPART_SIZ_FULL,
94 },
95};
96
97static struct platform_nand_data snappercl15_nand_data = {
98 .chip = {
99 .nr_chips = 1,
100 .partitions = snappercl15_nand_parts,
101 .nr_partitions = ARRAY_SIZE(snappercl15_nand_parts),
102 .chip_delay = 25,
103 },
104 .ctrl = {
105 .dev_ready = snappercl15_nand_dev_ready,
106 .cmd_ctrl = snappercl15_nand_cmd_ctrl,
107 },
108};
109
110static struct resource snappercl15_nand_resource[] = {
111 {
112 .start = SNAPPERCL15_NAND_BASE,
113 .end = SNAPPERCL15_NAND_BASE + SZ_4K - 1,
114 .flags = IORESOURCE_MEM,
115 },
116};
117
118static struct platform_device snappercl15_nand_device = {
119 .name = "gen_nand",
120 .id = -1,
121 .dev.platform_data = &snappercl15_nand_data,
122 .resource = snappercl15_nand_resource,
123 .num_resources = ARRAY_SIZE(snappercl15_nand_resource),
124};
125
126static struct ep93xx_eth_data __initdata snappercl15_eth_data = {
127 .phy_id = 1,
128};
129
130static struct i2c_gpio_platform_data __initdata snappercl15_i2c_gpio_data = {
131 .sda_pin = EP93XX_GPIO_LINE_EEDAT,
132 .sda_is_open_drain = 0,
133 .scl_pin = EP93XX_GPIO_LINE_EECLK,
134 .scl_is_open_drain = 0,
135 .udelay = 0,
136 .timeout = 0,
137};
138
139static struct i2c_board_info __initdata snappercl15_i2c_data[] = {
140 {
141
142 I2C_BOARD_INFO("tlv320aic23", 0x1a),
143 },
144};
145
146static struct ep93xxfb_mach_info __initdata snappercl15_fb_info = {
147};
148
149static struct platform_device snappercl15_audio_device = {
150 .name = "snappercl15-audio",
151 .id = -1,
152};
153
154static void __init snappercl15_register_audio(void)
155{
156 ep93xx_register_i2s();
157 platform_device_register(&snappercl15_audio_device);
158}
159
160static void __init snappercl15_init_machine(void)
161{
162 ep93xx_init_devices();
163 ep93xx_register_eth(&snappercl15_eth_data, 1);
164 ep93xx_register_i2c(&snappercl15_i2c_gpio_data, snappercl15_i2c_data,
165 ARRAY_SIZE(snappercl15_i2c_data));
166 ep93xx_register_fb(&snappercl15_fb_info);
167 snappercl15_register_audio();
168 platform_device_register(&snappercl15_nand_device);
169}
170
171MACHINE_START(SNAPPER_CL15, "Bluewater Systems Snapper CL15")
172
173 .atag_offset = 0x100,
174 .map_io = ep93xx_map_io,
175 .init_irq = ep93xx_init_irq,
176 .init_time = ep93xx_timer_init,
177 .init_machine = snappercl15_init_machine,
178 .init_late = ep93xx_init_late,
179 .restart = ep93xx_restart,
180MACHINE_END
181
