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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#include <mach/irqs.h>
29
30#include "generic.h"
31
32
33
34
35static struct mtd_partition h3xxx_partitions[] = {
36 {
37 .name = "H3XXX boot firmware",
38 .size = 0x00040000,
39 .offset = 0,
40 .mask_flags = MTD_WRITEABLE,
41 }, {
42 .name = "H3XXX rootfs",
43 .size = MTDPART_SIZ_FULL,
44 .offset = 0x00040000,
45 }
46};
47
48static void h3xxx_set_vpp(int vpp)
49{
50 gpio_set_value(H3XXX_EGPIO_VPP_ON, vpp);
51}
52
53static int h3xxx_flash_init(void)
54{
55 int err = gpio_request(H3XXX_EGPIO_VPP_ON, "Flash Vpp");
56 if (err) {
57 pr_err("%s: can't request H3XXX_EGPIO_VPP_ON\n", __func__);
58 return err;
59 }
60
61 err = gpio_direction_output(H3XXX_EGPIO_VPP_ON, 0);
62 if (err)
63 gpio_free(H3XXX_EGPIO_VPP_ON);
64
65 return err;
66}
67
68static void h3xxx_flash_exit(void)
69{
70 gpio_free(H3XXX_EGPIO_VPP_ON);
71}
72
73static struct flash_platform_data h3xxx_flash_data = {
74 .map_name = "cfi_probe",
75 .set_vpp = h3xxx_set_vpp,
76 .init = h3xxx_flash_init,
77 .exit = h3xxx_flash_exit,
78 .parts = h3xxx_partitions,
79 .nr_parts = ARRAY_SIZE(h3xxx_partitions),
80};
81
82static struct resource h3xxx_flash_resource =
83 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
84
85
86
87
88
89static struct gpio h3xxx_uart_gpio[] = {
90 { H3XXX_GPIO_COM_DCD, GPIOF_IN, "COM DCD" },
91 { H3XXX_GPIO_COM_CTS, GPIOF_IN, "COM CTS" },
92 { H3XXX_GPIO_COM_RTS, GPIOF_OUT_INIT_LOW, "COM RTS" },
93};
94
95static bool h3xxx_uart_request_gpios(void)
96{
97 static bool h3xxx_uart_gpio_ok;
98 int rc;
99
100 if (h3xxx_uart_gpio_ok)
101 return true;
102
103 rc = gpio_request_array(h3xxx_uart_gpio, ARRAY_SIZE(h3xxx_uart_gpio));
104 if (rc)
105 pr_err("h3xxx_uart_request_gpios: error %d\n", rc);
106 else
107 h3xxx_uart_gpio_ok = true;
108
109 return h3xxx_uart_gpio_ok;
110}
111
112static void h3xxx_uart_set_mctrl(struct uart_port *port, u_int mctrl)
113{
114 if (port->mapbase == _Ser3UTCR0) {
115 if (!h3xxx_uart_request_gpios())
116 return;
117 gpio_set_value(H3XXX_GPIO_COM_RTS, !(mctrl & TIOCM_RTS));
118 }
119}
120
121static u_int h3xxx_uart_get_mctrl(struct uart_port *port)
122{
123 u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
124
125 if (port->mapbase == _Ser3UTCR0) {
126 if (!h3xxx_uart_request_gpios())
127 return ret;
128
129
130
131 if (gpio_get_value(H3XXX_GPIO_COM_DCD))
132 ret &= ~TIOCM_CD;
133 if (gpio_get_value(H3XXX_GPIO_COM_CTS))
134 ret &= ~TIOCM_CTS;
135 }
136
137 return ret;
138}
139
140static void h3xxx_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
141{
142 if (port->mapbase == _Ser3UTCR0) {
143 if (!gpio_request(H3XXX_EGPIO_RS232_ON, "RS232 transceiver")) {
144 gpio_direction_output(H3XXX_EGPIO_RS232_ON, !state);
145 gpio_free(H3XXX_EGPIO_RS232_ON);
146 } else {
147 pr_err("%s: can't request H3XXX_EGPIO_RS232_ON\n",
148 __func__);
149 }
150 }
151}
152
153
154
155
156
157static int h3xxx_uart_set_wake(struct uart_port *port, u_int enable)
158{
159 int err = -EINVAL;
160
161 if (port->mapbase == _Ser3UTCR0) {
162 if (enable)
163 PWER |= PWER_GPIO23 | PWER_GPIO25;
164 else
165 PWER &= ~(PWER_GPIO23 | PWER_GPIO25);
166 err = 0;
167 }
168 return err;
169}
170
171static struct sa1100_port_fns h3xxx_port_fns __initdata = {
172 .set_mctrl = h3xxx_uart_set_mctrl,
173 .get_mctrl = h3xxx_uart_get_mctrl,
174 .pm = h3xxx_uart_pm,
175 .set_wake = h3xxx_uart_set_wake,
176};
177
178
179
180
181
182static struct resource egpio_resources[] = {
183 [0] = DEFINE_RES_MEM(H3600_EGPIO_PHYS, 0x4),
184};
185
186static struct htc_egpio_chip egpio_chips[] = {
187 [0] = {
188 .reg_start = 0,
189 .gpio_base = H3XXX_EGPIO_BASE,
190 .num_gpios = 16,
191 .direction = HTC_EGPIO_OUTPUT,
192 .initial_values = 0x0080,
193 },
194};
195
196static struct htc_egpio_platform_data egpio_info = {
197 .reg_width = 16,
198 .bus_width = 16,
199 .chip = egpio_chips,
200 .num_chips = ARRAY_SIZE(egpio_chips),
201};
202
203static struct platform_device h3xxx_egpio = {
204 .name = "htc-egpio",
205 .id = -1,
206 .resource = egpio_resources,
207 .num_resources = ARRAY_SIZE(egpio_resources),
208 .dev = {
209 .platform_data = &egpio_info,
210 },
211};
212
213
214
215
216
217static struct gpio_keys_button h3xxx_button_table[] = {
218 {
219 .code = KEY_POWER,
220 .gpio = H3XXX_GPIO_PWR_BUTTON,
221 .desc = "Power Button",
222 .active_low = 1,
223 .type = EV_KEY,
224 .wakeup = 1,
225 }, {
226 .code = KEY_ENTER,
227 .gpio = H3XXX_GPIO_ACTION_BUTTON,
228 .active_low = 1,
229 .desc = "Action button",
230 .type = EV_KEY,
231 .wakeup = 0,
232 },
233};
234
235static struct gpio_keys_platform_data h3xxx_keys_data = {
236 .buttons = h3xxx_button_table,
237 .nbuttons = ARRAY_SIZE(h3xxx_button_table),
238};
239
240static struct platform_device h3xxx_keys = {
241 .name = "gpio-keys",
242 .id = -1,
243 .dev = {
244 .platform_data = &h3xxx_keys_data,
245 },
246};
247
248static struct resource h3xxx_micro_resources[] = {
249 DEFINE_RES_MEM(0x80010000, SZ_4K),
250 DEFINE_RES_MEM(0x80020000, SZ_4K),
251 DEFINE_RES_IRQ(IRQ_Ser1UART),
252};
253
254struct platform_device h3xxx_micro_asic = {
255 .name = "ipaq-h3xxx-micro",
256 .id = -1,
257 .resource = h3xxx_micro_resources,
258 .num_resources = ARRAY_SIZE(h3xxx_micro_resources),
259};
260
261static struct platform_device *h3xxx_devices[] = {
262 &h3xxx_egpio,
263 &h3xxx_keys,
264 &h3xxx_micro_asic,
265};
266
267void __init h3xxx_mach_init(void)
268{
269 sa1100_register_uart_fns(&h3xxx_port_fns);
270 sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);
271 platform_add_devices(h3xxx_devices, ARRAY_SIZE(h3xxx_devices));
272}
273
274static struct map_desc h3600_io_desc[] __initdata = {
275 {
276 .virtual = H3600_BANK_2_VIRT,
277 .pfn = __phys_to_pfn(SA1100_CS2_PHYS),
278 .length = 0x02800000,
279 .type = MT_DEVICE
280 }, {
281 .virtual = H3600_BANK_4_VIRT,
282 .pfn = __phys_to_pfn(SA1100_CS4_PHYS),
283 .length = 0x00800000,
284 .type = MT_DEVICE
285 }, {
286 .virtual = H3600_EGPIO_VIRT,
287 .pfn = __phys_to_pfn(H3600_EGPIO_PHYS),
288 .length = 0x01000000,
289 .type = MT_DEVICE
290 }
291};
292
293
294
295
296
297void __init h3xxx_map_io(void)
298{
299 sa1100_map_io();
300 iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc));
301
302 sa1100_register_uart(0, 3);
303
304
305
306 PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
307 PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
308
309
310 PGSR = 0;
311 PCFR = PCFR_OPDE;
312 PSDR = 0;
313
314 GPCR = 0x0fffffff;
315 GPDR = 0;
316}
317
318
