1
2
3
4
5
6
7
8
9
10
11
12
13#include <linux/kernel.h>
14#include <linux/gpio.h>
15#include <linux/gpio_keys.h>
16#include <linux/input.h>
17#include <linux/mfd/htc-egpio.h>
18#include <linux/mtd/mtd.h>
19#include <linux/mtd/partitions.h>
20#include <linux/platform_data/sa11x0-serial.h>
21#include <linux/platform_device.h>
22#include <linux/serial_core.h>
23
24#include <asm/mach/flash.h>
25#include <asm/mach/map.h>
26
27#include <mach/h3xxx.h>
28
29#include "generic.h"
30
31void h3xxx_init_gpio(struct gpio_default_state *s, size_t n)
32{
33 while (n--) {
34 const char *name = s->name;
35 int err;
36
37 if (!name)
38 name = "[init]";
39 err = gpio_request(s->gpio, name);
40 if (err) {
41 printk(KERN_ERR "gpio%u: unable to request: %d\n",
42 s->gpio, err);
43 continue;
44 }
45 if (s->mode >= 0) {
46 err = gpio_direction_output(s->gpio, s->mode);
47 } else {
48 err = gpio_direction_input(s->gpio);
49 }
50 if (err) {
51 printk(KERN_ERR "gpio%u: unable to set direction: %d\n",
52 s->gpio, err);
53 continue;
54 }
55 if (!s->name)
56 gpio_free(s->gpio);
57 s++;
58 }
59}
60
61
62
63
64
65static struct mtd_partition h3xxx_partitions[] = {
66 {
67 .name = "H3XXX boot firmware",
68 .size = 0x00040000,
69 .offset = 0,
70 .mask_flags = MTD_WRITEABLE,
71 }, {
72 .name = "H3XXX rootfs",
73 .size = MTDPART_SIZ_FULL,
74 .offset = 0x00040000,
75 }
76};
77
78static void h3xxx_set_vpp(int vpp)
79{
80 gpio_set_value(H3XXX_EGPIO_VPP_ON, vpp);
81}
82
83static int h3xxx_flash_init(void)
84{
85 int err = gpio_request(H3XXX_EGPIO_VPP_ON, "Flash Vpp");
86 if (err) {
87 pr_err("%s: can't request H3XXX_EGPIO_VPP_ON\n", __func__);
88 return err;
89 }
90
91 err = gpio_direction_output(H3XXX_EGPIO_VPP_ON, 0);
92 if (err)
93 gpio_free(H3XXX_EGPIO_VPP_ON);
94
95 return err;
96}
97
98static void h3xxx_flash_exit(void)
99{
100 gpio_free(H3XXX_EGPIO_VPP_ON);
101}
102
103static struct flash_platform_data h3xxx_flash_data = {
104 .map_name = "cfi_probe",
105 .set_vpp = h3xxx_set_vpp,
106 .init = h3xxx_flash_init,
107 .exit = h3xxx_flash_exit,
108 .parts = h3xxx_partitions,
109 .nr_parts = ARRAY_SIZE(h3xxx_partitions),
110};
111
112static struct resource h3xxx_flash_resource =
113 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
114
115
116
117
118
119static void h3xxx_uart_set_mctrl(struct uart_port *port, u_int mctrl)
120{
121 if (port->mapbase == _Ser3UTCR0) {
122 gpio_set_value(H3XXX_GPIO_COM_RTS, !(mctrl & TIOCM_RTS));
123 }
124}
125
126static u_int h3xxx_uart_get_mctrl(struct uart_port *port)
127{
128 u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
129
130 if (port->mapbase == _Ser3UTCR0) {
131
132
133
134 if (gpio_get_value(H3XXX_GPIO_COM_DCD))
135 ret &= ~TIOCM_CD;
136 if (gpio_get_value(H3XXX_GPIO_COM_CTS))
137 ret &= ~TIOCM_CTS;
138 }
139
140 return ret;
141}
142
143static void h3xxx_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
144{
145 if (port->mapbase == _Ser3UTCR0) {
146 if (!gpio_request(H3XXX_EGPIO_RS232_ON, "RS232 transceiver")) {
147 gpio_direction_output(H3XXX_EGPIO_RS232_ON, !state);
148 gpio_free(H3XXX_EGPIO_RS232_ON);
149 } else {
150 pr_err("%s: can't request H3XXX_EGPIO_RS232_ON\n",
151 __func__);
152 }
153 }
154}
155
156
157
158
159
160static int h3xxx_uart_set_wake(struct uart_port *port, u_int enable)
161{
162 int err = -EINVAL;
163
164 if (port->mapbase == _Ser3UTCR0) {
165 if (enable)
166 PWER |= PWER_GPIO23 | PWER_GPIO25;
167 else
168 PWER &= ~(PWER_GPIO23 | PWER_GPIO25);
169 err = 0;
170 }
171 return err;
172}
173
174static struct sa1100_port_fns h3xxx_port_fns __initdata = {
175 .set_mctrl = h3xxx_uart_set_mctrl,
176 .get_mctrl = h3xxx_uart_get_mctrl,
177 .pm = h3xxx_uart_pm,
178 .set_wake = h3xxx_uart_set_wake,
179};
180
181
182
183
184
185static struct resource egpio_resources[] = {
186 [0] = DEFINE_RES_MEM(H3600_EGPIO_PHYS, 0x4),
187};
188
189static struct htc_egpio_chip egpio_chips[] = {
190 [0] = {
191 .reg_start = 0,
192 .gpio_base = H3XXX_EGPIO_BASE,
193 .num_gpios = 16,
194 .direction = HTC_EGPIO_OUTPUT,
195 .initial_values = 0x0080,
196 },
197};
198
199static struct htc_egpio_platform_data egpio_info = {
200 .reg_width = 16,
201 .bus_width = 16,
202 .chip = egpio_chips,
203 .num_chips = ARRAY_SIZE(egpio_chips),
204};
205
206static struct platform_device h3xxx_egpio = {
207 .name = "htc-egpio",
208 .id = -1,
209 .resource = egpio_resources,
210 .num_resources = ARRAY_SIZE(egpio_resources),
211 .dev = {
212 .platform_data = &egpio_info,
213 },
214};
215
216
217
218
219
220static struct gpio_keys_button h3xxx_button_table[] = {
221 {
222 .code = KEY_POWER,
223 .gpio = H3XXX_GPIO_PWR_BUTTON,
224 .desc = "Power Button",
225 .active_low = 1,
226 .type = EV_KEY,
227 .wakeup = 1,
228 }, {
229 .code = KEY_ENTER,
230 .gpio = H3XXX_GPIO_ACTION_BUTTON,
231 .active_low = 1,
232 .desc = "Action button",
233 .type = EV_KEY,
234 .wakeup = 0,
235 },
236};
237
238static struct gpio_keys_platform_data h3xxx_keys_data = {
239 .buttons = h3xxx_button_table,
240 .nbuttons = ARRAY_SIZE(h3xxx_button_table),
241};
242
243static struct platform_device h3xxx_keys = {
244 .name = "gpio-keys",
245 .id = -1,
246 .dev = {
247 .platform_data = &h3xxx_keys_data,
248 },
249};
250
251static struct platform_device *h3xxx_devices[] = {
252 &h3xxx_egpio,
253 &h3xxx_keys,
254};
255
256void __init h3xxx_mach_init(void)
257{
258 sa1100_register_uart_fns(&h3xxx_port_fns);
259 sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
260 platform_add_devices(h3xxx_devices, ARRAY_SIZE(h3xxx_devices));
261}
262
263static struct map_desc h3600_io_desc[] __initdata = {
264 {
265 .virtual = H3600_BANK_2_VIRT,
266 .pfn = __phys_to_pfn(SA1100_CS2_PHYS),
267 .length = 0x02800000,
268 .type = MT_DEVICE
269 }, {
270 .virtual = H3600_BANK_4_VIRT,
271 .pfn = __phys_to_pfn(SA1100_CS4_PHYS),
272 .length = 0x00800000,
273 .type = MT_DEVICE
274 }, {
275 .virtual = H3600_EGPIO_VIRT,
276 .pfn = __phys_to_pfn(H3600_EGPIO_PHYS),
277 .length = 0x01000000,
278 .type = MT_DEVICE
279 }
280};
281
282
283
284
285
286void __init h3xxx_map_io(void)
287{
288 sa1100_map_io();
289 iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc));
290
291 sa1100_register_uart(0, 3);
292
293
294
295 PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
296 PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
297
298
299 PGSR = 0;
300 PCFR = PCFR_OPDE;
301 PSDR = 0;
302
303 GPCR = 0x0fffffff;
304 GPDR = 0;
305}
306
307
