xref: /qemu/hw/arm/tosa.c (revision 61cc8724) 
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 "sysemu/runstate.h"
17 #include "hw/arm/pxa.h"
18 #include "hw/arm/boot.h"
19 #include "hw/arm/sharpsl.h"
20 #include "hw/pcmcia.h"
21 #include "hw/boards.h"
22 #include "hw/display/tc6393xb.h"
23 #include "hw/i2c/i2c.h"
24 #include "hw/irq.h"
25 #include "hw/ssi/ssi.h"
26 #include "hw/sysbus.h"
27 #include "exec/address-spaces.h"
28 
29 #define TOSA_RAM    0x04000000
30 #define TOSA_ROM	0x00800000
31 
32 #define TOSA_GPIO_USB_IN		(5)
33 #define TOSA_GPIO_nSD_DETECT	(9)
34 #define TOSA_GPIO_ON_RESET		(19)
35 #define TOSA_GPIO_CF_IRQ		(21)	/* CF slot0 Ready */
36 #define TOSA_GPIO_CF_CD			(13)
37 #define TOSA_GPIO_TC6393XB_INT  (15)
38 #define TOSA_GPIO_JC_CF_IRQ		(36)	/* CF slot1 Ready */
39 
40 #define TOSA_SCOOP_GPIO_BASE	1
41 #define TOSA_GPIO_IR_POWERDWN	(TOSA_SCOOP_GPIO_BASE + 2)
42 #define TOSA_GPIO_SD_WP			(TOSA_SCOOP_GPIO_BASE + 3)
43 #define TOSA_GPIO_PWR_ON		(TOSA_SCOOP_GPIO_BASE + 4)
44 
45 #define TOSA_SCOOP_JC_GPIO_BASE		1
46 #define TOSA_GPIO_BT_LED		(TOSA_SCOOP_JC_GPIO_BASE + 0)
47 #define TOSA_GPIO_NOTE_LED		(TOSA_SCOOP_JC_GPIO_BASE + 1)
48 #define TOSA_GPIO_CHRG_ERR_LED		(TOSA_SCOOP_JC_GPIO_BASE + 2)
49 #define TOSA_GPIO_TC6393XB_L3V_ON	(TOSA_SCOOP_JC_GPIO_BASE + 5)
50 #define TOSA_GPIO_WLAN_LED		(TOSA_SCOOP_JC_GPIO_BASE + 7)
51 
52 #define	DAC_BASE	0x4e
53 #define DAC_CH1		0
54 #define DAC_CH2		1
55 
56 static void tosa_microdrive_attach(PXA2xxState *cpu)
57 {
58     PCMCIACardState *md;
59     DriveInfo *dinfo;
60 
61     dinfo = drive_get(IF_IDE, 0, 0);
62     if (!dinfo || dinfo->media_cd)
63         return;
64     md = dscm1xxxx_init(dinfo);
65     pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
66 }
67 
68 static void tosa_out_switch(void *opaque, int line, int level)
69 {
70     switch (line) {
71         case 0:
72             fprintf(stderr, "blue LED %s.\n", level ? "on" : "off");
73             break;
74         case 1:
75             fprintf(stderr, "green LED %s.\n", level ? "on" : "off");
76             break;
77         case 2:
78             fprintf(stderr, "amber LED %s.\n", level ? "on" : "off");
79             break;
80         case 3:
81             fprintf(stderr, "wlan LED %s.\n", level ? "on" : "off");
82             break;
83         default:
84             fprintf(stderr, "Uhandled out event: %d = %d\n", line, level);
85             break;
86     }
87 }
88 
89 static void tosa_reset(void *opaque, int line, int level)
90 {
91     if (level) {
92         qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
93     }
94 }
95 
96 static void tosa_gpio_setup(PXA2xxState *cpu,
97                 DeviceState *scp0,
98                 DeviceState *scp1,
99                 TC6393xbState *tmio)
100 {
101     qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
102     qemu_irq reset;
103 
104     /* MMC/SD host */
105     pxa2xx_mmci_handlers(cpu->mmc,
106                     qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP),
107                     qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT)));
108 
109     /* Handle reset */
110     reset = qemu_allocate_irq(tosa_reset, cpu, 0);
111     qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET, reset);
112 
113     /* PCMCIA signals: card's IRQ and Card-Detect */
114     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
115                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ),
116                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD));
117 
118     pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
119                         qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ),
120                         NULL);
121 
122     qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED, outsignals[0]);
123     qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED, outsignals[1]);
124     qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED, outsignals[2]);
125     qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED, outsignals[3]);
126 
127     qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON, tc6393xb_l3v_get(tmio));
128 
129     /* UDC Vbus */
130     qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN));
131 }
132 
133 static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
134 {
135     fprintf(stderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
136     return 0;
137 }
138 
139 static void tosa_ssp_realize(SSISlave *dev, Error **errp)
140 {
141     /* Nothing to do.  */
142 }
143 
144 #define TYPE_TOSA_DAC "tosa_dac"
145 #define TOSA_DAC(obj) OBJECT_CHECK(TosaDACState, (obj), TYPE_TOSA_DAC)
146 
147 typedef struct {
148     I2CSlave parent_obj;
149 
150     int len;
151     char buf[3];
152 } TosaDACState;
153 
154 static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
155 {
156     TosaDACState *s = TOSA_DAC(i2c);
157 
158     s->buf[s->len] = data;
159     if (s->len ++ > 2) {
160 #ifdef VERBOSE
161         fprintf(stderr, "%s: message too long (%i bytes)\n", __func__, s->len);
162 #endif
163         return 1;
164     }
165 
166     if (s->len == 2) {
167         fprintf(stderr, "dac: channel %d value 0x%02x\n",
168                 s->buf[0], s->buf[1]);
169     }
170 
171     return 0;
172 }
173 
174 static int tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
175 {
176     TosaDACState *s = TOSA_DAC(i2c);
177 
178     s->len = 0;
179     switch (event) {
180     case I2C_START_SEND:
181         break;
182     case I2C_START_RECV:
183         printf("%s: recv not supported!!!\n", __func__);
184         break;
185     case I2C_FINISH:
186 #ifdef VERBOSE
187         if (s->len < 2)
188             printf("%s: message too short (%i bytes)\n", __func__, s->len);
189         if (s->len > 2)
190             printf("%s: message too long\n", __func__);
191 #endif
192         break;
193     default:
194         break;
195     }
196 
197     return 0;
198 }
199 
200 static uint8_t tosa_dac_recv(I2CSlave *s)
201 {
202     printf("%s: recv not supported!!!\n", __func__);
203     return 0xff;
204 }
205 
206 static void tosa_tg_init(PXA2xxState *cpu)
207 {
208     I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
209     i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
210     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
211 }
212 
213 
214 static struct arm_boot_info tosa_binfo = {
215     .loader_start = PXA2XX_SDRAM_BASE,
216     .ram_size = 0x04000000,
217 };
218 
219 static void tosa_init(MachineState *machine)
220 {
221     MemoryRegion *address_space_mem = get_system_memory();
222     MemoryRegion *rom = g_new(MemoryRegion, 1);
223     PXA2xxState *mpu;
224     TC6393xbState *tmio;
225     DeviceState *scp0, *scp1;
226 
227     mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
228 
229     memory_region_init_ram(rom, NULL, "tosa.rom", TOSA_ROM, &error_fatal);
230     memory_region_set_readonly(rom, true);
231     memory_region_add_subregion(address_space_mem, 0, rom);
232 
233     tmio = tc6393xb_init(address_space_mem, 0x10000000,
234             qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT));
235 
236     scp0 = sysbus_create_simple("scoop", 0x08800000, NULL);
237     scp1 = sysbus_create_simple("scoop", 0x14800040, NULL);
238 
239     tosa_gpio_setup(mpu, scp0, scp1, tmio);
240 
241     tosa_microdrive_attach(mpu);
242 
243     tosa_tg_init(mpu);
244 
245     tosa_binfo.board_id = 0x208;
246     arm_load_kernel(mpu->cpu, machine, &tosa_binfo);
247     sl_bootparam_write(SL_PXA_PARAM_BASE);
248 }
249 
250 static void tosapda_machine_init(MachineClass *mc)
251 {
252     mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
253     mc->init = tosa_init;
254     mc->block_default_type = IF_IDE;
255     mc->ignore_memory_transaction_failures = true;
256 }
257 
258 DEFINE_MACHINE("tosa", tosapda_machine_init)
259 
260 static void tosa_dac_class_init(ObjectClass *klass, void *data)
261 {
262     I2CSlaveClass *k = I2C_SLAVE_CLASS(klass);
263 
264     k->event = tosa_dac_event;
265     k->recv = tosa_dac_recv;
266     k->send = tosa_dac_send;
267 }
268 
269 static const TypeInfo tosa_dac_info = {
270     .name          = TYPE_TOSA_DAC,
271     .parent        = TYPE_I2C_SLAVE,
272     .instance_size = sizeof(TosaDACState),
273     .class_init    = tosa_dac_class_init,
274 };
275 
276 static void tosa_ssp_class_init(ObjectClass *klass, void *data)
277 {
278     SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
279 
280     k->realize = tosa_ssp_realize;
281     k->transfer = tosa_ssp_tansfer;
282 }
283 
284 static const TypeInfo tosa_ssp_info = {
285     .name          = "tosa-ssp",
286     .parent        = TYPE_SSI_SLAVE,
287     .instance_size = sizeof(SSISlave),
288     .class_init    = tosa_ssp_class_init,
289 };
290 
291 static void tosa_register_types(void)
292 {
293     type_register_static(&tosa_dac_info);
294     type_register_static(&tosa_ssp_info);
295 }
296 
297 type_init(tosa_register_types)
298