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hw/arm/allwinner: Clean up local variable shadowing
[qemu/kevin.git] / hw / arm / xilinx_zynq.c
blob8dc2ea83a93b1b9920f27c8f1250c8f9691ace94
1 /*
2 * Xilinx Zynq Baseboard System emulation.
3 *
4 * Copyright (c) 2010 Xilinx.
5 * Copyright (c) 2012 Peter A.G. Crosthwaite (peter.croshtwaite@petalogix.com)
6 * Copyright (c) 2012 Petalogix Pty Ltd.
7 * Written by Haibing Ma
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include "qemu/osdep.h"
19 #include "qemu/units.h"
20 #include "qapi/error.h"
21 #include "cpu.h"
22 #include "hw/sysbus.h"
23 #include "hw/arm/boot.h"
24 #include "net/net.h"
25 #include "sysemu/sysemu.h"
26 #include "hw/boards.h"
27 #include "hw/block/flash.h"
28 #include "hw/loader.h"
29 #include "hw/adc/zynq-xadc.h"
30 #include "hw/ssi/ssi.h"
31 #include "hw/usb/chipidea.h"
32 #include "qemu/error-report.h"
33 #include "hw/sd/sdhci.h"
34 #include "hw/char/cadence_uart.h"
35 #include "hw/net/cadence_gem.h"
36 #include "hw/cpu/a9mpcore.h"
37 #include "hw/qdev-clock.h"
38 #include "sysemu/reset.h"
39 #include "qom/object.h"
40
41 #define TYPE_ZYNQ_MACHINE MACHINE_TYPE_NAME("xilinx-zynq-a9")
42 OBJECT_DECLARE_SIMPLE_TYPE(ZynqMachineState, ZYNQ_MACHINE)
43
44 /* board base frequency: 33.333333 MHz */
45 #define PS_CLK_FREQUENCY (100 * 1000 * 1000 / 3)
46
47 #define NUM_SPI_FLASHES 4
48 #define NUM_QSPI_FLASHES 2
49 #define NUM_QSPI_BUSSES 2
50
51 #define FLASH_SIZE (64 * 1024 * 1024)
52 #define FLASH_SECTOR_SIZE (128 * 1024)
53
54 #define IRQ_OFFSET 32 /* pic interrupts start from index 32 */
55
56 #define MPCORE_PERIPHBASE 0xF8F00000
57 #define ZYNQ_BOARD_MIDR 0x413FC090
58
59 static const int dma_irqs[8] = {
60 46, 47, 48, 49, 72, 73, 74, 75
61 };
62
63 #define BOARD_SETUP_ADDR 0x100
64
65 #define SLCR_LOCK_OFFSET 0x004
66 #define SLCR_UNLOCK_OFFSET 0x008
67 #define SLCR_ARM_PLL_OFFSET 0x100
68
69 #define SLCR_XILINX_UNLOCK_KEY 0xdf0d
70 #define SLCR_XILINX_LOCK_KEY 0x767b
71
72 #define ZYNQ_SDHCI_CAPABILITIES 0x69ec0080 /* Datasheet: UG585 (v1.12.1) */
73
74 #define ARMV7_IMM16(x) (extract32((x), 0, 12) | \
75 extract32((x), 12, 4) << 16)
76
77 /* Write immediate val to address r0 + addr. r0 should contain base offset
78 * of the SLCR block. Clobbers r1.
79 */
80
81 #define SLCR_WRITE(addr, val) \
82 0xe3001000 + ARMV7_IMM16(extract32((val), 0, 16)), /* movw r1 ... */ \
83 0xe3401000 + ARMV7_IMM16(extract32((val), 16, 16)), /* movt r1 ... */ \
84 0xe5801000 + (addr)
85
86 struct ZynqMachineState {
87 MachineState parent;
88 Clock *ps_clk;
89 };
90
91 static void zynq_write_board_setup(ARMCPU *cpu,
92 const struct arm_boot_info *info)
93 {
94 int n;
95 uint32_t board_setup_blob[] = {
96 0xe3a004f8, /* mov r0, #0xf8000000 */
97 SLCR_WRITE(SLCR_UNLOCK_OFFSET, SLCR_XILINX_UNLOCK_KEY),
98 SLCR_WRITE(SLCR_ARM_PLL_OFFSET, 0x00014008),
99 SLCR_WRITE(SLCR_LOCK_OFFSET, SLCR_XILINX_LOCK_KEY),
100 0xe12fff1e, /* bx lr */
101 };
102 for (n = 0; n < ARRAY_SIZE(board_setup_blob); n++) {
103 board_setup_blob[n] = tswap32(board_setup_blob[n]);
104 }
105 rom_add_blob_fixed("board-setup", board_setup_blob,
106 sizeof(board_setup_blob), BOARD_SETUP_ADDR);
107 }
108
109 static struct arm_boot_info zynq_binfo = {};
110
111 static void gem_init(NICInfo *nd, uint32_t base, qemu_irq irq)
112 {
113 DeviceState *dev;
114 SysBusDevice *s;
115
116 dev = qdev_new(TYPE_CADENCE_GEM);
117 if (nd->used) {
118 qemu_check_nic_model(nd, TYPE_CADENCE_GEM);
119 qdev_set_nic_properties(dev, nd);
120 }
121 object_property_set_int(OBJECT(dev), "phy-addr", 7, &error_abort);
122 s = SYS_BUS_DEVICE(dev);
123 sysbus_realize_and_unref(s, &error_fatal);
124 sysbus_mmio_map(s, 0, base);
125 sysbus_connect_irq(s, 0, irq);
126 }
127
128 static inline int zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq,
129 bool is_qspi, int unit0)
130 {
131 int unit = unit0;
132 DeviceState *dev;
133 SysBusDevice *busdev;
134 SSIBus *spi;
135 DeviceState *flash_dev;
136 int i, j;
137 int num_busses = is_qspi ? NUM_QSPI_BUSSES : 1;
138 int num_ss = is_qspi ? NUM_QSPI_FLASHES : NUM_SPI_FLASHES;
139
140 dev = qdev_new(is_qspi ? "xlnx.ps7-qspi" : "xlnx.ps7-spi");
141 qdev_prop_set_uint8(dev, "num-txrx-bytes", is_qspi ? 4 : 1);
142 qdev_prop_set_uint8(dev, "num-ss-bits", num_ss);
143 qdev_prop_set_uint8(dev, "num-busses", num_busses);
144 busdev = SYS_BUS_DEVICE(dev);
145 sysbus_realize_and_unref(busdev, &error_fatal);
146 sysbus_mmio_map(busdev, 0, base_addr);
147 if (is_qspi) {
148 sysbus_mmio_map(busdev, 1, 0xFC000000);
149 }
150 sysbus_connect_irq(busdev, 0, irq);
151
152 for (i = 0; i < num_busses; ++i) {
153 char bus_name[16];
154 qemu_irq cs_line;
155
156 snprintf(bus_name, 16, "spi%d", i);
157 spi = (SSIBus *)qdev_get_child_bus(dev, bus_name);
158
159 for (j = 0; j < num_ss; ++j) {
160 DriveInfo *dinfo = drive_get(IF_MTD, 0, unit++);
161 flash_dev = qdev_new("n25q128");
162 if (dinfo) {
163 qdev_prop_set_drive_err(flash_dev, "drive",
164 blk_by_legacy_dinfo(dinfo),
165 &error_fatal);
166 }
167 qdev_prop_set_uint8(flash_dev, "cs", j);
168 qdev_realize_and_unref(flash_dev, BUS(spi), &error_fatal);
169
170 cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
171 sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line);
172 }
173 }
174
175 return unit;
176 }
177
178 static void zynq_init(MachineState *machine)
179 {
180 ZynqMachineState *zynq_machine = ZYNQ_MACHINE(machine);
181 ARMCPU *cpu;
182 MemoryRegion *address_space_mem = get_system_memory();
183 MemoryRegion *ocm_ram = g_new(MemoryRegion, 1);
184 DeviceState *dev, *slcr;
185 SysBusDevice *busdev;
186 qemu_irq pic[64];
187 int n;
188
189 /* max 2GB ram */
190 if (machine->ram_size > 2 * GiB) {
191 error_report("RAM size more than 2 GiB is not supported");
192 exit(EXIT_FAILURE);
193 }
194
195 cpu = ARM_CPU(object_new(machine->cpu_type));
196
197 /* By default A9 CPUs have EL3 enabled. This board does not
198 * currently support EL3 so the CPU EL3 property is disabled before
199 * realization.
200 */
201 if (object_property_find(OBJECT(cpu), "has_el3")) {
202 object_property_set_bool(OBJECT(cpu), "has_el3", false, &error_fatal);
203 }
204
205 object_property_set_int(OBJECT(cpu), "midr", ZYNQ_BOARD_MIDR,
206 &error_fatal);
207 object_property_set_int(OBJECT(cpu), "reset-cbar", MPCORE_PERIPHBASE,
208 &error_fatal);
209 qdev_realize(DEVICE(cpu), NULL, &error_fatal);
210
211 /* DDR remapped to address zero. */
212 memory_region_add_subregion(address_space_mem, 0, machine->ram);
213
214 /* 256K of on-chip memory */
215 memory_region_init_ram(ocm_ram, NULL, "zynq.ocm_ram", 256 * KiB,
216 &error_fatal);
217 memory_region_add_subregion(address_space_mem, 0xFFFC0000, ocm_ram);
218
219 DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0);
220
221 /* AMD */
222 pflash_cfi02_register(0xe2000000, "zynq.pflash", FLASH_SIZE,
223 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
224 FLASH_SECTOR_SIZE, 1,
225 1, 0x0066, 0x0022, 0x0000, 0x0000, 0x0555, 0x2aa,
226 0);
227
228 /* Create the main clock source, and feed slcr with it */
229 zynq_machine->ps_clk = CLOCK(object_new(TYPE_CLOCK));
230 object_property_add_child(OBJECT(zynq_machine), "ps_clk",
231 OBJECT(zynq_machine->ps_clk));
232 object_unref(OBJECT(zynq_machine->ps_clk));
233 clock_set_hz(zynq_machine->ps_clk, PS_CLK_FREQUENCY);
234
235 /* Create slcr, keep a pointer to connect clocks */
236 slcr = qdev_new("xilinx-zynq_slcr");
237 qdev_connect_clock_in(slcr, "ps_clk", zynq_machine->ps_clk);
238 sysbus_realize_and_unref(SYS_BUS_DEVICE(slcr), &error_fatal);
239 sysbus_mmio_map(SYS_BUS_DEVICE(slcr), 0, 0xF8000000);
240
241 dev = qdev_new(TYPE_A9MPCORE_PRIV);
242 qdev_prop_set_uint32(dev, "num-cpu", 1);
243 busdev = SYS_BUS_DEVICE(dev);
244 sysbus_realize_and_unref(busdev, &error_fatal);
245 sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE);
246 sysbus_connect_irq(busdev, 0,
247 qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));
248
249 for (n = 0; n < 64; n++) {
250 pic[n] = qdev_get_gpio_in(dev, n);
251 }
252
253 n = zynq_init_spi_flashes(0xE0006000, pic[58 - IRQ_OFFSET], false, 0);
254 n = zynq_init_spi_flashes(0xE0007000, pic[81 - IRQ_OFFSET], false, n);
255 n = zynq_init_spi_flashes(0xE000D000, pic[51 - IRQ_OFFSET], true, n);
256
257 sysbus_create_simple(TYPE_CHIPIDEA, 0xE0002000, pic[53 - IRQ_OFFSET]);
258 sysbus_create_simple(TYPE_CHIPIDEA, 0xE0003000, pic[76 - IRQ_OFFSET]);
259
260 dev = qdev_new(TYPE_CADENCE_UART);
261 busdev = SYS_BUS_DEVICE(dev);
262 qdev_prop_set_chr(dev, "chardev", serial_hd(0));
263 qdev_connect_clock_in(dev, "refclk",
264 qdev_get_clock_out(slcr, "uart0_ref_clk"));
265 sysbus_realize_and_unref(busdev, &error_fatal);
266 sysbus_mmio_map(busdev, 0, 0xE0000000);
267 sysbus_connect_irq(busdev, 0, pic[59 - IRQ_OFFSET]);
268 dev = qdev_new(TYPE_CADENCE_UART);
269 busdev = SYS_BUS_DEVICE(dev);
270 qdev_prop_set_chr(dev, "chardev", serial_hd(1));
271 qdev_connect_clock_in(dev, "refclk",
272 qdev_get_clock_out(slcr, "uart1_ref_clk"));
273 sysbus_realize_and_unref(busdev, &error_fatal);
274 sysbus_mmio_map(busdev, 0, 0xE0001000);
275 sysbus_connect_irq(busdev, 0, pic[82 - IRQ_OFFSET]);
276
277 sysbus_create_varargs("cadence_ttc", 0xF8001000,
278 pic[42-IRQ_OFFSET], pic[43-IRQ_OFFSET], pic[44-IRQ_OFFSET], NULL);
279 sysbus_create_varargs("cadence_ttc", 0xF8002000,
280 pic[69-IRQ_OFFSET], pic[70-IRQ_OFFSET], pic[71-IRQ_OFFSET], NULL);
281
282 gem_init(&nd_table[0], 0xE000B000, pic[54-IRQ_OFFSET]);
283 gem_init(&nd_table[1], 0xE000C000, pic[77-IRQ_OFFSET]);
284
285 for (n = 0; n < 2; n++) {
286 int hci_irq = n ? 79 : 56;
287 hwaddr hci_addr = n ? 0xE0101000 : 0xE0100000;
288 DriveInfo *di;
289 BlockBackend *blk;
290 DeviceState *carddev;
291
292 /* Compatible with:
293 * - SD Host Controller Specification Version 2.0 Part A2
294 * - SDIO Specification Version 2.0
295 * - MMC Specification Version 3.31
296 */
297 dev = qdev_new(TYPE_SYSBUS_SDHCI);
298 qdev_prop_set_uint8(dev, "sd-spec-version", 2);
299 qdev_prop_set_uint64(dev, "capareg", ZYNQ_SDHCI_CAPABILITIES);
300 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
301 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, hci_addr);
302 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[hci_irq - IRQ_OFFSET]);
303
304 di = drive_get(IF_SD, 0, n);
305 blk = di ? blk_by_legacy_dinfo(di) : NULL;
306 carddev = qdev_new(TYPE_SD_CARD);
307 qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
308 qdev_realize_and_unref(carddev, qdev_get_child_bus(dev, "sd-bus"),
309 &error_fatal);
310 }
311
312 dev = qdev_new(TYPE_ZYNQ_XADC);
313 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
314 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8007100);
315 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[39-IRQ_OFFSET]);
316
317 dev = qdev_new("pl330");
318 object_property_set_link(OBJECT(dev), "memory",
319 OBJECT(address_space_mem),
320 &error_fatal);
321 qdev_prop_set_uint8(dev, "num_chnls", 8);
322 qdev_prop_set_uint8(dev, "num_periph_req", 4);
323 qdev_prop_set_uint8(dev, "num_events", 16);
324
325 qdev_prop_set_uint8(dev, "data_width", 64);
326 qdev_prop_set_uint8(dev, "wr_cap", 8);
327 qdev_prop_set_uint8(dev, "wr_q_dep", 16);
328 qdev_prop_set_uint8(dev, "rd_cap", 8);
329 qdev_prop_set_uint8(dev, "rd_q_dep", 16);
330 qdev_prop_set_uint16(dev, "data_buffer_dep", 256);
331
332 busdev = SYS_BUS_DEVICE(dev);
333 sysbus_realize_and_unref(busdev, &error_fatal);
334 sysbus_mmio_map(busdev, 0, 0xF8003000);
335 sysbus_connect_irq(busdev, 0, pic[45-IRQ_OFFSET]); /* abort irq line */
336 for (n = 0; n < ARRAY_SIZE(dma_irqs); ++n) { /* event irqs */
337 sysbus_connect_irq(busdev, n + 1, pic[dma_irqs[n] - IRQ_OFFSET]);
338 }
339
340 dev = qdev_new("xlnx.ps7-dev-cfg");
341 busdev = SYS_BUS_DEVICE(dev);
342 sysbus_realize_and_unref(busdev, &error_fatal);
343 sysbus_connect_irq(busdev, 0, pic[40 - IRQ_OFFSET]);
344 sysbus_mmio_map(busdev, 0, 0xF8007000);
345
346 zynq_binfo.ram_size = machine->ram_size;
347 zynq_binfo.board_id = 0xd32;
348 zynq_binfo.loader_start = 0;
349 zynq_binfo.board_setup_addr = BOARD_SETUP_ADDR;
350 zynq_binfo.write_board_setup = zynq_write_board_setup;
351
352 arm_load_kernel(ARM_CPU(first_cpu), machine, &zynq_binfo);
353 }
354
355 static void zynq_machine_class_init(ObjectClass *oc, void *data)
356 {
357 MachineClass *mc = MACHINE_CLASS(oc);
358 mc->desc = "Xilinx Zynq Platform Baseboard for Cortex-A9";
359 mc->init = zynq_init;
360 mc->max_cpus = 1;
361 mc->no_sdcard = 1;
362 mc->ignore_memory_transaction_failures = true;
363 mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
364 mc->default_ram_id = "zynq.ext_ram";
365 }
366
367 static const TypeInfo zynq_machine_type = {
368 .name = TYPE_ZYNQ_MACHINE,
369 .parent = TYPE_MACHINE,
370 .class_init = zynq_machine_class_init,
371 .instance_size = sizeof(ZynqMachineState),
372 };
373
374 static void zynq_machine_register_types(void)
375 {
376 type_register_static(&zynq_machine_type);
377 }
378
379 type_init(zynq_machine_register_types)
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