linux-user: stack_base is now mandatory on all targets
[qemu.git] / hw / tosa.c
1 /* vim:set shiftwidth=4 ts=4 et: */
2 /*
3 * PXA255 Sharp Zaurus SL-6000 PDA platform
4 *
5 * Copyright (c) 2008 Dmitry Baryshkov
6 *
7 * Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org>
8 * This code is licensed under the GNU GPL v2.
9 *
10 * Contributions after 2012-01-13 are licensed under the terms of the
11 * GNU GPL, version 2 or (at your option) any later version.
12 */
13
14 #include "hw.h"
15 #include "pxa.h"
16 #include "arm-misc.h"
17 #include "devices.h"
18 #include "sharpsl.h"
19 #include "pcmcia.h"
20 #include "block.h"
21 #include "boards.h"
22 #include "i2c.h"
23 #include "ssi.h"
24 #include "blockdev.h"
25 #include "sysbus.h"
26 #include "exec-memory.h"
27
28 #define TOSA_RAM 0x04000000
29 #define TOSA_ROM 0x00800000
30
31 #define TOSA_GPIO_USB_IN (5)
32 #define TOSA_GPIO_nSD_DETECT (9)
33 #define TOSA_GPIO_ON_RESET (19)
34 #define TOSA_GPIO_CF_IRQ (21) /* CF slot0 Ready */
35 #define TOSA_GPIO_CF_CD (13)
36 #define TOSA_GPIO_TC6393XB_INT (15)
37 #define TOSA_GPIO_JC_CF_IRQ (36) /* CF slot1 Ready */
38
39 #define TOSA_SCOOP_GPIO_BASE 1
40 #define TOSA_GPIO_IR_POWERDWN (TOSA_SCOOP_GPIO_BASE + 2)
41 #define TOSA_GPIO_SD_WP (TOSA_SCOOP_GPIO_BASE + 3)
42 #define TOSA_GPIO_PWR_ON (TOSA_SCOOP_GPIO_BASE + 4)
43
44 #define TOSA_SCOOP_JC_GPIO_BASE 1
45 #define TOSA_GPIO_BT_LED (TOSA_SCOOP_JC_GPIO_BASE + 0)
46 #define TOSA_GPIO_NOTE_LED (TOSA_SCOOP_JC_GPIO_BASE + 1)
47 #define TOSA_GPIO_CHRG_ERR_LED (TOSA_SCOOP_JC_GPIO_BASE + 2)
48 #define TOSA_GPIO_TC6393XB_L3V_ON (TOSA_SCOOP_JC_GPIO_BASE + 5)
49 #define TOSA_GPIO_WLAN_LED (TOSA_SCOOP_JC_GPIO_BASE + 7)
50
51 #define DAC_BASE 0x4e
52 #define DAC_CH1 0
53 #define DAC_CH2 1
54
55 static void tosa_microdrive_attach(PXA2xxState *cpu)
56 {
57 PCMCIACardState *md;
58 DriveInfo *dinfo;
59
60 dinfo = drive_get(IF_IDE, 0, 0);
61 if (!dinfo || dinfo->media_cd)
62 return;
63 md = dscm1xxxx_init(dinfo);
64 pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
65 }
66
67 static void tosa_out_switch(void *opaque, int line, int level)
68 {
69 switch (line) {
70 case 0:
71 fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
72 break;
73 case 1:
74 fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
75 break;
76 case 2:
77 fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
78 break;
79 case 3:
80 fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
81 break;
82 default:
83 fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
84 break;
85 }
86 }
87
88
89 static void tosa_gpio_setup(PXA2xxState *cpu,
90 DeviceState *scp0,
91 DeviceState *scp1,
92 TC6393xbState *tmio)
93 {
94 qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
95 /* MMC/SD host */
96 pxa2xx_mmci_handlers(cpu->mmc,
97 qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
98 qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
99
100 /* Handle reset */
101 qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);
102
103 /* PCMCIA signals: card's IRQ and Card-Detect */
104 pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
105 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
106 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
107
108 pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
109 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
110 NULL);
111
112 qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
113 qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
114 qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
115 qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
116
117 qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
118
119 /* UDC Vbus */
120 qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
121 }
122
123 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
124 {
125 fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
126 return 0;
127 }
128
129 static int tosa_ssp_init(SSISlave *dev)
130 {
131 /* Nothing to do. */
132 return 0;
133 }
134
135 typedef struct {
136 I2CSlave i2c;
137 int len;
138 char buf[3];
139 } TosaDACState;
140
141 static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
142 {
143 TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
144 s->buf[s->len] = data;
145 if (s->len ++ > 2) {
146 #ifdef VERBOSE
147 fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
148 #endif
149 return 1;
150 }
151
152 if (s->len == 2) {
153 fprintf(stderr, "dac: channel %d value 0x%02x\n",
154 s->buf[0], s->buf[1]);
155 }
156
157 return 0;
158 }
159
160 static void tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
161 {
162 TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c);
163 s->len = 0;
164 switch (event) {
165 case I2C_START_SEND:
166 break;
167 case I2C_START_RECV:
168 printf("%s: recv not supported!!!\n", __FUNCTION__);
169 break;
170 case I2C_FINISH:
171 #ifdef VERBOSE
172 if (s->len < 2)
173 printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
174 if (s->len > 2)
175 printf("%s: message too long\n", __FUNCTION__);
176 #endif
177 break;
178 default:
179 break;
180 }
181 }
182
183 static int tosa_dac_recv(I2CSlave *s)
184 {
185 printf("%s: recv not supported!!!\n", __FUNCTION__);
186 return -1;
187 }
188
189 static int tosa_dac_init(I2CSlave *i2c)
190 {
191 /* Nothing to do. */
192 return 0;
193 }
194
195 static void tosa_tg_init(PXA2xxState *cpu)
196 {
197 i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
198 i2c_create_slave(bus, "tosa_dac", DAC_BASE);
199 ssi_create_slave(cpu->ssp[1], "tosa-ssp");
200 }
201
202
203 static struct arm_boot_info tosa_binfo = {
204 .loader_start = PXA2XX_SDRAM_BASE,
205 .ram_size = 0x04000000,
206 };
207
208 static void tosa_init(ram_addr_t ram_size,
209 const char *boot_device,
210 const char *kernel_filename, const char *kernel_cmdline,
211 const char *initrd_filename, const char *cpu_model)
212 {
213 MemoryRegion *address_space_mem = get_system_memory();
214 MemoryRegion *rom = g_new(MemoryRegion, 1);
215 PXA2xxState *cpu;
216 TC6393xbState *tmio;
217 DeviceState *scp0, *scp1;
218
219 if (!cpu_model)
220 cpu_model = "pxa255";
221
222 cpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
223
224 memory_region_init_ram(rom, "tosa.rom", TOSA_ROM);
225 vmstate_register_ram_global(rom);
226 memory_region_set_readonly(rom, true);
227 memory_region_add_subregion(address_space_mem, 0, rom);
228
229 tmio = tc6393xb_init(address_space_mem, 0x10000000,
230 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_TC6393XB_INT));
231
232 scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
233 scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
234
235 tosa_gpio_setup(cpu, scp0, scp1, tmio);
236
237 tosa_microdrive_attach(cpu);
238
239 tosa_tg_init(cpu);
240
241 tosa_binfo.kernel_filename = kernel_filename;
242 tosa_binfo.kernel_cmdline = kernel_cmdline;
243 tosa_binfo.initrd_filename = initrd_filename;
244 tosa_binfo.board_id = 0x208;
245 arm_load_kernel(cpu->env, &tosa_binfo);
246 sl_bootparam_write(SL_PXA_PARAM_BASE);
247 }
248
249 static QEMUMachine tosapda_machine = {
250 .name = "tosa",
251 .desc = "Tosa PDA (PXA255)",
252 .init = tosa_init,
253 };
254
255 static void tosapda_machine_init(void)
256 {
257 qemu_register_machine(&tosapda_machine);
258 }
259
260 machine_init(tosapda_machine_init);
261
262 static void tosa_dac_class_init(ObjectClass *klass, void *data)
263 {
264 I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
265
266 k->init = tosa_dac_init;
267 k->event = tosa_dac_event;
268 k->recv = tosa_dac_recv;
269 k->send = tosa_dac_send;
270 }
271
272 static DeviceInfo tosa_dac_info = {
273 .name = "tosa_dac",
274 .size = sizeof(TosaDACState),
275 .class_init = tosa_dac_class_init,
276 };
277
278 static void tosa_ssp_class_init(ObjectClass *klass, void *data)
279 {
280 SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
281
282 k->init = tosa_ssp_init;
283 k->transfer = tosa_ssp_tansfer;
284 }
285
286 static DeviceInfo tosa_ssp_info = {
287 .name = "tosa-ssp",
288 .size = sizeof(SSISlave),
289 .class_init = tosa_ssp_class_init,
290 };
291
292 static void tosa_register_devices(void)
293 {
294 i2c_register_slave(&tosa_dac_info);
295 ssi_register_slave(&tosa_ssp_info);
296 }
297
298 device_init(tosa_register_devices)