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fuse: Implement hole detection through lseek
[qemu.git] / hw / arm / xilinx_zynq.c
blobb72772bc8245e6b3971f91dbbea6c7bc90772cc9
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 "exec/address-spaces.h"
26 #include "sysemu/sysemu.h"
27 #include "hw/boards.h"
28 #include "hw/block/flash.h"
29 #include "hw/loader.h"
30 #include "hw/misc/zynq-xadc.h"
31 #include "hw/ssi/ssi.h"
32 #include "hw/usb/chipidea.h"
33 #include "qemu/error-report.h"
34 #include "hw/sd/sdhci.h"
35 #include "hw/char/cadence_uart.h"
36 #include "hw/net/cadence_gem.h"
37 #include "hw/cpu/a9mpcore.h"
38 #include "hw/qdev-clock.h"
39 #include "sysemu/reset.h"
40 #include "qom/object.h"
41
42 #define TYPE_ZYNQ_MACHINE MACHINE_TYPE_NAME("xilinx-zynq-a9")
43 OBJECT_DECLARE_SIMPLE_TYPE(ZynqMachineState, ZYNQ_MACHINE)
44
45 /* board base frequency: 33.333333 MHz */
46 #define PS_CLK_FREQUENCY (100 * 1000 * 1000 / 3)
47
48 #define NUM_SPI_FLASHES 4
49 #define NUM_QSPI_FLASHES 2
50 #define NUM_QSPI_BUSSES 2
51
52 #define FLASH_SIZE (64 * 1024 * 1024)
53 #define FLASH_SECTOR_SIZE (128 * 1024)
54
55 #define IRQ_OFFSET 32 /* pic interrupts start from index 32 */
56
57 #define MPCORE_PERIPHBASE 0xF8F00000
58 #define ZYNQ_BOARD_MIDR 0x413FC090
59
60 static const int dma_irqs[8] = {
61 46, 47, 48, 49, 72, 73, 74, 75
62 };
63
64 #define BOARD_SETUP_ADDR 0x100
65
66 #define SLCR_LOCK_OFFSET 0x004
67 #define SLCR_UNLOCK_OFFSET 0x008
68 #define SLCR_ARM_PLL_OFFSET 0x100
69
70 #define SLCR_XILINX_UNLOCK_KEY 0xdf0d
71 #define SLCR_XILINX_LOCK_KEY 0x767b
72
73 #define ZYNQ_SDHCI_CAPABILITIES 0x69ec0080 /* Datasheet: UG585 (v1.12.1) */
74
75 #define ARMV7_IMM16(x) (extract32((x), 0, 12) | \
76 extract32((x), 12, 4) << 16)
77
78 /* Write immediate val to address r0 + addr. r0 should contain base offset
79 * of the SLCR block. Clobbers r1.
80 */
81
82 #define SLCR_WRITE(addr, val) \
83 0xe3001000 + ARMV7_IMM16(extract32((val), 0, 16)), /* movw r1 ... */ \
84 0xe3401000 + ARMV7_IMM16(extract32((val), 16, 16)), /* movt r1 ... */ \
85 0xe5801000 + (addr)
86
87 struct ZynqMachineState {
88 MachineState parent;
89 Clock *ps_clk;
90 };
91
92 static void zynq_write_board_setup(ARMCPU *cpu,
93 const struct arm_boot_info *info)
94 {
95 int n;
96 uint32_t board_setup_blob[] = {
97 0xe3a004f8, /* mov r0, #0xf8000000 */
98 SLCR_WRITE(SLCR_UNLOCK_OFFSET, SLCR_XILINX_UNLOCK_KEY),
99 SLCR_WRITE(SLCR_ARM_PLL_OFFSET, 0x00014008),
100 SLCR_WRITE(SLCR_LOCK_OFFSET, SLCR_XILINX_LOCK_KEY),
101 0xe12fff1e, /* bx lr */
102 };
103 for (n = 0; n < ARRAY_SIZE(board_setup_blob); n++) {
104 board_setup_blob[n] = tswap32(board_setup_blob[n]);
105 }
106 rom_add_blob_fixed("board-setup", board_setup_blob,
107 sizeof(board_setup_blob), BOARD_SETUP_ADDR);
108 }
109
110 static struct arm_boot_info zynq_binfo = {};
111
112 static void gem_init(NICInfo *nd, uint32_t base, qemu_irq irq)
113 {
114 DeviceState *dev;
115 SysBusDevice *s;
116
117 dev = qdev_new(TYPE_CADENCE_GEM);
118 if (nd->used) {
119 qemu_check_nic_model(nd, TYPE_CADENCE_GEM);
120 qdev_set_nic_properties(dev, nd);
121 }
122 object_property_set_int(OBJECT(dev), "phy-addr", 23, &error_abort);
123 s = SYS_BUS_DEVICE(dev);
124 sysbus_realize_and_unref(s, &error_fatal);
125 sysbus_mmio_map(s, 0, base);
126 sysbus_connect_irq(s, 0, irq);
127 }
128
129 static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq,
130 bool is_qspi)
131 {
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_next(IF_MTD);
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_realize_and_unref(flash_dev, BUS(spi), &error_fatal);
168
169 cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
170 sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line);
171 }
172 }
173
174 }
175
176 static void zynq_init(MachineState *machine)
177 {
178 ZynqMachineState *zynq_machine = ZYNQ_MACHINE(machine);
179 ARMCPU *cpu;
180 MemoryRegion *address_space_mem = get_system_memory();
181 MemoryRegion *ocm_ram = g_new(MemoryRegion, 1);
182 DeviceState *dev, *slcr;
183 SysBusDevice *busdev;
184 qemu_irq pic[64];
185 int n;
186
187 /* max 2GB ram */
188 if (machine->ram_size > 2 * GiB) {
189 error_report("RAM size more than 2 GiB is not supported");
190 exit(EXIT_FAILURE);
191 }
192
193 cpu = ARM_CPU(object_new(machine->cpu_type));
194
195 /* By default A9 CPUs have EL3 enabled. This board does not
196 * currently support EL3 so the CPU EL3 property is disabled before
197 * realization.
198 */
199 if (object_property_find(OBJECT(cpu), "has_el3")) {
200 object_property_set_bool(OBJECT(cpu), "has_el3", false, &error_fatal);
201 }
202
203 object_property_set_int(OBJECT(cpu), "midr", ZYNQ_BOARD_MIDR,
204 &error_fatal);
205 object_property_set_int(OBJECT(cpu), "reset-cbar", MPCORE_PERIPHBASE,
206 &error_fatal);
207 qdev_realize(DEVICE(cpu), NULL, &error_fatal);
208
209 /* DDR remapped to address zero. */
210 memory_region_add_subregion(address_space_mem, 0, machine->ram);
211
212 /* 256K of on-chip memory */
213 memory_region_init_ram(ocm_ram, NULL, "zynq.ocm_ram", 256 * KiB,
214 &error_fatal);
215 memory_region_add_subregion(address_space_mem, 0xFFFC0000, ocm_ram);
216
217 DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0);
218
219 /* AMD */
220 pflash_cfi02_register(0xe2000000, "zynq.pflash", FLASH_SIZE,
221 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
222 FLASH_SECTOR_SIZE, 1,
223 1, 0x0066, 0x0022, 0x0000, 0x0000, 0x0555, 0x2aa,
224 0);
225
226 /* Create the main clock source, and feed slcr with it */
227 zynq_machine->ps_clk = CLOCK(object_new(TYPE_CLOCK));
228 object_property_add_child(OBJECT(zynq_machine), "ps_clk",
229 OBJECT(zynq_machine->ps_clk));
230 object_unref(OBJECT(zynq_machine->ps_clk));
231 clock_set_hz(zynq_machine->ps_clk, PS_CLK_FREQUENCY);
232
233 /* Create slcr, keep a pointer to connect clocks */
234 slcr = qdev_new("xilinx,zynq_slcr");
235 qdev_connect_clock_in(slcr, "ps_clk", zynq_machine->ps_clk);
236 sysbus_realize_and_unref(SYS_BUS_DEVICE(slcr), &error_fatal);
237 sysbus_mmio_map(SYS_BUS_DEVICE(slcr), 0, 0xF8000000);
238
239 dev = qdev_new(TYPE_A9MPCORE_PRIV);
240 qdev_prop_set_uint32(dev, "num-cpu", 1);
241 busdev = SYS_BUS_DEVICE(dev);
242 sysbus_realize_and_unref(busdev, &error_fatal);
243 sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE);
244 sysbus_connect_irq(busdev, 0,
245 qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));
246
247 for (n = 0; n < 64; n++) {
248 pic[n] = qdev_get_gpio_in(dev, n);
249 }
250
251 zynq_init_spi_flashes(0xE0006000, pic[58-IRQ_OFFSET], false);
252 zynq_init_spi_flashes(0xE0007000, pic[81-IRQ_OFFSET], false);
253 zynq_init_spi_flashes(0xE000D000, pic[51-IRQ_OFFSET], true);
254
255 sysbus_create_simple(TYPE_CHIPIDEA, 0xE0002000, pic[53 - IRQ_OFFSET]);
256 sysbus_create_simple(TYPE_CHIPIDEA, 0xE0003000, pic[76 - IRQ_OFFSET]);
257
258 dev = qdev_new(TYPE_CADENCE_UART);
259 busdev = SYS_BUS_DEVICE(dev);
260 qdev_prop_set_chr(dev, "chardev", serial_hd(0));
261 qdev_connect_clock_in(dev, "refclk",
262 qdev_get_clock_out(slcr, "uart0_ref_clk"));
263 sysbus_realize_and_unref(busdev, &error_fatal);
264 sysbus_mmio_map(busdev, 0, 0xE0000000);
265 sysbus_connect_irq(busdev, 0, pic[59 - IRQ_OFFSET]);
266 dev = qdev_new(TYPE_CADENCE_UART);
267 busdev = SYS_BUS_DEVICE(dev);
268 qdev_prop_set_chr(dev, "chardev", serial_hd(1));
269 qdev_connect_clock_in(dev, "refclk",
270 qdev_get_clock_out(slcr, "uart1_ref_clk"));
271 sysbus_realize_and_unref(busdev, &error_fatal);
272 sysbus_mmio_map(busdev, 0, 0xE0001000);
273 sysbus_connect_irq(busdev, 0, pic[82 - IRQ_OFFSET]);
274
275 sysbus_create_varargs("cadence_ttc", 0xF8001000,
276 pic[42-IRQ_OFFSET], pic[43-IRQ_OFFSET], pic[44-IRQ_OFFSET], NULL);
277 sysbus_create_varargs("cadence_ttc", 0xF8002000,
278 pic[69-IRQ_OFFSET], pic[70-IRQ_OFFSET], pic[71-IRQ_OFFSET], NULL);
279
280 gem_init(&nd_table[0], 0xE000B000, pic[54-IRQ_OFFSET]);
281 gem_init(&nd_table[1], 0xE000C000, pic[77-IRQ_OFFSET]);
282
283 for (n = 0; n < 2; n++) {
284 int hci_irq = n ? 79 : 56;
285 hwaddr hci_addr = n ? 0xE0101000 : 0xE0100000;
286 DriveInfo *di;
287 BlockBackend *blk;
288 DeviceState *carddev;
289
290 /* Compatible with:
291 * - SD Host Controller Specification Version 2.0 Part A2
292 * - SDIO Specification Version 2.0
293 * - MMC Specification Version 3.31
294 */
295 dev = qdev_new(TYPE_SYSBUS_SDHCI);
296 qdev_prop_set_uint8(dev, "sd-spec-version", 2);
297 qdev_prop_set_uint64(dev, "capareg", ZYNQ_SDHCI_CAPABILITIES);
298 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
299 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, hci_addr);
300 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[hci_irq - IRQ_OFFSET]);
301
302 di = drive_get_next(IF_SD);
303 blk = di ? blk_by_legacy_dinfo(di) : NULL;
304 carddev = qdev_new(TYPE_SD_CARD);
305 qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
306 qdev_realize_and_unref(carddev, qdev_get_child_bus(dev, "sd-bus"),
307 &error_fatal);
308 }
309
310 dev = qdev_new(TYPE_ZYNQ_XADC);
311 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
312 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8007100);
313 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[39-IRQ_OFFSET]);
314
315 dev = qdev_new("pl330");
316 qdev_prop_set_uint8(dev, "num_chnls", 8);
317 qdev_prop_set_uint8(dev, "num_periph_req", 4);
318 qdev_prop_set_uint8(dev, "num_events", 16);
319
320 qdev_prop_set_uint8(dev, "data_width", 64);
321 qdev_prop_set_uint8(dev, "wr_cap", 8);
322 qdev_prop_set_uint8(dev, "wr_q_dep", 16);
323 qdev_prop_set_uint8(dev, "rd_cap", 8);
324 qdev_prop_set_uint8(dev, "rd_q_dep", 16);
325 qdev_prop_set_uint16(dev, "data_buffer_dep", 256);
326
327 busdev = SYS_BUS_DEVICE(dev);
328 sysbus_realize_and_unref(busdev, &error_fatal);
329 sysbus_mmio_map(busdev, 0, 0xF8003000);
330 sysbus_connect_irq(busdev, 0, pic[45-IRQ_OFFSET]); /* abort irq line */
331 for (n = 0; n < ARRAY_SIZE(dma_irqs); ++n) { /* event irqs */
332 sysbus_connect_irq(busdev, n + 1, pic[dma_irqs[n] - IRQ_OFFSET]);
333 }
334
335 dev = qdev_new("xlnx.ps7-dev-cfg");
336 busdev = SYS_BUS_DEVICE(dev);
337 sysbus_realize_and_unref(busdev, &error_fatal);
338 sysbus_connect_irq(busdev, 0, pic[40 - IRQ_OFFSET]);
339 sysbus_mmio_map(busdev, 0, 0xF8007000);
340
341 zynq_binfo.ram_size = machine->ram_size;
342 zynq_binfo.nb_cpus = 1;
343 zynq_binfo.board_id = 0xd32;
344 zynq_binfo.loader_start = 0;
345 zynq_binfo.board_setup_addr = BOARD_SETUP_ADDR;
346 zynq_binfo.write_board_setup = zynq_write_board_setup;
347
348 arm_load_kernel(ARM_CPU(first_cpu), machine, &zynq_binfo);
349 }
350
351 static void zynq_machine_class_init(ObjectClass *oc, void *data)
352 {
353 MachineClass *mc = MACHINE_CLASS(oc);
354 mc->desc = "Xilinx Zynq Platform Baseboard for Cortex-A9";
355 mc->init = zynq_init;
356 mc->max_cpus = 1;
357 mc->no_sdcard = 1;
358 mc->ignore_memory_transaction_failures = true;
359 mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
360 mc->default_ram_id = "zynq.ext_ram";
361 }
362
363 static const TypeInfo zynq_machine_type = {
364 .name = TYPE_ZYNQ_MACHINE,
365 .parent = TYPE_MACHINE,
366 .class_init = zynq_machine_class_init,
367 .instance_size = sizeof(ZynqMachineState),
368 };
369
370 static void zynq_machine_register_types(void)
371 {
372 type_register_static(&zynq_machine_type);
373 }
374
375 type_init(zynq_machine_register_types)
QEmu