xref: /qemu/hw/arm/tosa.c (revision 6402cbbb) 
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 "qemu/osdep.h"
15 #include "qapi/error.h"
16 #include "hw/hw.h"
17 #include "hw/arm/pxa.h"
18 #include "hw/arm/arm.h"
19 #include "hw/devices.h"
20 #include "hw/arm/sharpsl.h"
21 #include "hw/pcmcia.h"
22 #include "hw/boards.h"
23 #include "hw/i2c/i2c.h"
24 #include "hw/ssi/ssi.h"
25 #include "sysemu/block-backend.h"
26 #include "hw/sysbus.h"
27 #include "exec/address-spaces.h"
28 #include "sysemu/sysemu.h"
29 
30 #define TOSA_RAM    0x04000000
31 #define TOSA_ROM	0x00800000
32 
33 #define TOSA_GPIO_USB_IN		(5)
34 #define TOSA_GPIO_nSD_DETECT	(9)
35 #define TOSA_GPIO_ON_RESET		(19)
36 #define TOSA_GPIO_CF_IRQ		(21)	/* CF slot0 Ready */
37 #define TOSA_GPIO_CF_CD			(13)
38 #define TOSA_GPIO_TC6393XB_INT  (15)
39 #define TOSA_GPIO_JC_CF_IRQ		(36)	/* CF slot1 Ready */
40 
41 #define TOSA_SCOOP_GPIO_BASE	1
42 #define TOSA_GPIO_IR_POWERDWN	(TOSA_SCOOP_GPIO_BASE + 2)
43 #define TOSA_GPIO_SD_WP			(TOSA_SCOOP_GPIO_BASE + 3)
44 #define TOSA_GPIO_PWR_ON		(TOSA_SCOOP_GPIO_BASE + 4)
45 
46 #define TOSA_SCOOP_JC_GPIO_BASE		1
47 #define TOSA_GPIO_BT_LED		(TOSA_SCOOP_JC_GPIO_BASE + 0)
48 #define TOSA_GPIO_NOTE_LED		(TOSA_SCOOP_JC_GPIO_BASE + 1)
49 #define TOSA_GPIO_CHRG_ERR_LED		(TOSA_SCOOP_JC_GPIO_BASE + 2)
50 #define TOSA_GPIO_TC6393XB_L3V_ON	(TOSA_SCOOP_JC_GPIO_BASE + 5)
51 #define TOSA_GPIO_WLAN_LED		(TOSA_SCOOP_JC_GPIO_BASE + 7)
52 
53 #define	DAC_BASE	0x4e
54 #define DAC_CH1		0
55 #define DAC_CH2		1
56 
57 static void tosa_microdrive_attach(PXA2xxState *cpu)
58 {
59     PCMCIACardState *md;
60     DriveInfo *dinfo;
61 
62     dinfo = drive_get(IF_IDE, 0, 0);
63     if (!dinfo || dinfo->media_cd)
64         return;
65     md = dscm1xxxx_init(dinfo);
66     pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
67 }
68 
69 static void tosa_out_switch(void *opaque, int line, int level)
70 {
71     switch (line) {
72         case 0:
73             fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
74             break;
75         case 1:
76             fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
77             break;
78         case 2:
79             fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
80             break;
81         case 3:
82             fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
83             break;
84         default:
85             fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
86             break;
87     }
88 }
89 
90 static void tosa_reset(void *opaque, int line, int level)
91 {
92     if (level) {
93         qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
94     }
95 }
96 
97 static void tosa_gpio_setup(PXA2xxState *cpu,
98                 DeviceState *scp0,
99                 DeviceState *scp1,
100                 TC6393xbState *tmio)
101 {
102     qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
103     qemu_irq reset;
104 
105     /* MMC/SD host */
106     pxa2xx_mmci_handlers(cpu->mmc,
107                     qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
108                     qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
109 
110     /* Handle reset */
111     reset = qemu_allocate_irq(tosa_reset, cpu, 0);
112     qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, reset);
113 
114     /* PCMCIA signals: card's IRQ and Card-Detect */
115     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
116                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
117                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
118 
119     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
120                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
121                         NULL);
122 
123     qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
124     qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
125     qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
126     qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
127 
128     qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
129 
130     /* UDC Vbus */
131     qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
132 }
133 
134 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
135 {
136     fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
137     return 0;
138 }
139 
140 static void tosa_ssp_realize(SSISlave *dev, Error **errp)
141 {
142     /* Nothing to do.  */
143 }
144 
145 #define TYPE_TOSA_DAC "tosa_dac"
146 #define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
147 
148 typedef struct {
149     I2CSlave parent_obj;
150 
151     int len;
152     char buf[3];
153 } TosaDACState;
154 
155 static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
156 {
157     TosaDACState *s = TOSA_DAC(i2c);
158 
159     s->buf[s->len] = data;
160     if (s->len ++ > 2) {
161 #ifdef VERBOSE
162         fprintf(stderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
163 #endif
164         return 1;
165     }
166 
167     if (s->len == 2) {
168         fprintf(stderr, "dac: channel %d value 0x%02x\n",
169                 s->buf[0], s->buf[1]);
170     }
171 
172     return 0;
173 }
174 
175 static int tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
176 {
177     TosaDACState *s = TOSA_DAC(i2c);
178 
179     s->len = 0;
180     switch (event) {
181     case I2C_START_SEND:
182         break;
183     case I2C_START_RECV:
184         printf("%s: recv not supported!!!\n", __FUNCTION__);
185         break;
186     case I2C_FINISH:
187 #ifdef VERBOSE
188         if (s->len < 2)
189             printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
190         if (s->len > 2)
191             printf("%s: message too long\n", __FUNCTION__);
192 #endif
193         break;
194     default:
195         break;
196     }
197 
198     return 0;
199 }
200 
201 static int tosa_dac_recv(I2CSlave *s)
202 {
203     printf("%s: recv not supported!!!\n", __FUNCTION__);
204     return -1;
205 }
206 
207 static void tosa_tg_init(PXA2xxState *cpu)
208 {
209     I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
210     i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
211     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
212 }
213 
214 
215 static struct arm_boot_info tosa_binfo = {
216     .loader_start = PXA2XX_SDRAM_BASE,
217     .ram_size = 0x04000000,
218 };
219 
220 static void tosa_init(MachineState *machine)
221 {
222     const char *cpu_model = machine->cpu_model;
223     const char *kernel_filename = machine->kernel_filename;
224     const char *kernel_cmdline = machine->kernel_cmdline;
225     const char *initrd_filename = machine->initrd_filename;
226     MemoryRegion *address_space_mem = get_system_memory();
227     MemoryRegion *rom = g_new(MemoryRegion, 1);
228     PXA2xxState *mpu;
229     TC6393xbState *tmio;
230     DeviceState *scp0, *scp1;
231 
232     if (!cpu_model)
233         cpu_model = "pxa255";
234 
235     mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
236 
237     memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
238     memory_region_set_readonly(rom, true);
239     memory_region_add_subregion(address_space_mem, 0, rom);
240 
241     tmio = tc6393xb_init(address_space_mem, 0x10000000,
242             qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
243 
244     scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
245     scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
246 
247     tosa_gpio_setup(mpu, scp0, scp1, tmio);
248 
249     tosa_microdrive_attach(mpu);
250 
251     tosa_tg_init(mpu);
252 
253     tosa_binfo.kernel_filename = kernel_filename;
254     tosa_binfo.kernel_cmdline = kernel_cmdline;
255     tosa_binfo.initrd_filename = initrd_filename;
256     tosa_binfo.board_id = 0x208;
257     arm_load_kernel(mpu->cpu, &tosa_binfo);
258     sl_bootparam_write(SL_PXA_PARAM_BASE);
259 }
260 
261 static void tosapda_machine_init(MachineClass *mc)
262 {
263     mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
264     mc->init = tosa_init;
265     mc->block_default_type = IF_IDE;
266 }
267 
268 DEFINE_MACHINE("tosa", tosapda_machine_init)
269 
270 static void tosa_dac_class_init(ObjectClass *klass, void *data)
271 {
272     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
273 
274     k->event = tosa_dac_event;
275     k->recv = tosa_dac_recv;
276     k->send = tosa_dac_send;
277 }
278 
279 static const TypeInfo tosa_dac_info = {
280     .name          = TYPE_TOSA_DAC,
281     .parent        = TYPE_I2C_SLAVE,
282     .instance_size = sizeof(TosaDACState),
283     .class_init    = tosa_dac_class_init,
284 };
285 
286 static void tosa_ssp_class_init(ObjectClass *klass, void *data)
287 {
288     SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
289 
290     k->realize = tosa_ssp_realize;
291     k->transfer = tosa_ssp_tansfer;
292 }
293 
294 static const TypeInfo tosa_ssp_info = {
295     .name          = "tosa-ssp",
296     .parent        = TYPE_SSI_SLAVE,
297     .instance_size = sizeof(SSISlave),
298     .class_init    = tosa_ssp_class_init,
299 };
300 
301 static void tosa_register_types(void)
302 {
303     type_register_static(&tosa_dac_info);
304     type_register_static(&tosa_ssp_info);
305 }
306 
307 type_init(tosa_register_types)
308