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1/*
2 * Xilinx Zynq Baseboard System emulation.
3 *
4 * Copyright (c) 2010 Xilinx.
5 * Copyright (c) 2012 Peter A.G. Crosthwaite ([email protected])
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
12b16722 18#include "qemu/osdep.h"
da34e65c 19#include "qapi/error.h"
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20#include "qemu-common.h"
21#include "cpu.h"
83c9f4ca 22#include "hw/sysbus.h"
bd2be150 23#include "hw/arm/arm.h"
1422e32d 24#include "net/net.h"
022c62cb 25#include "exec/address-spaces.h"
9c17d615 26#include "sysemu/sysemu.h"
83c9f4ca 27#include "hw/boards.h"
0d09e41a 28#include "hw/block/flash.h"
fa1d36df 29#include "sysemu/block-backend.h"
83c9f4ca 30#include "hw/loader.h"
74fcbd22 31#include "hw/misc/zynq-xadc.h"
8fd06719 32#include "hw/ssi/ssi.h"
d8bbdcf8 33#include "qemu/error-report.h"
c2de81e2 34#include "hw/sd/sdhci.h"
4be12ea0 35#include "hw/char/cadence_uart.h"
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36#include "hw/net/cadence_gem.h"
37#include "hw/cpu/a9mpcore.h"
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38
39#define NUM_SPI_FLASHES 4
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40#define NUM_QSPI_FLASHES 2
41#define NUM_QSPI_BUSSES 2
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42
43#define FLASH_SIZE (64 * 1024 * 1024)
44#define FLASH_SECTOR_SIZE (128 * 1024)
45
46#define IRQ_OFFSET 32 /* pic interrupts start from index 32 */
47
c2577128 48#define MPCORE_PERIPHBASE 0xF8F00000
b48adc0d 49#define ZYNQ_BOARD_MIDR 0x413FC090
c2577128 50
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51static const int dma_irqs[8] = {
52 46, 47, 48, 49, 72, 73, 74, 75
53};
54
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55#define BOARD_SETUP_ADDR 0x100
56
57#define SLCR_LOCK_OFFSET 0x004
58#define SLCR_UNLOCK_OFFSET 0x008
59#define SLCR_ARM_PLL_OFFSET 0x100
60
61#define SLCR_XILINX_UNLOCK_KEY 0xdf0d
62#define SLCR_XILINX_LOCK_KEY 0x767b
63
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64#define ZYNQ_SDHCI_CAPABILITIES 0x69ec0080 /* Datasheet: UG585 (v1.12.1) */
65
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66#define ARMV7_IMM16(x) (extract32((x), 0, 12) | \
67 extract32((x), 12, 4) << 16)
68
69/* Write immediate val to address r0 + addr. r0 should contain base offset
70 * of the SLCR block. Clobbers r1.
71 */
72
73#define SLCR_WRITE(addr, val) \
74 0xe3001000 + ARMV7_IMM16(extract32((val), 0, 16)), /* movw r1 ... */ \
75 0xe3401000 + ARMV7_IMM16(extract32((val), 16, 16)), /* movt r1 ... */ \
76 0xe5801000 + (addr)
77
78static void zynq_write_board_setup(ARMCPU *cpu,
79 const struct arm_boot_info *info)
80{
81 int n;
82 uint32_t board_setup_blob[] = {
83 0xe3a004f8, /* mov r0, #0xf8000000 */
84 SLCR_WRITE(SLCR_UNLOCK_OFFSET, SLCR_XILINX_UNLOCK_KEY),
85 SLCR_WRITE(SLCR_ARM_PLL_OFFSET, 0x00014008),
86 SLCR_WRITE(SLCR_LOCK_OFFSET, SLCR_XILINX_LOCK_KEY),
87 0xe12fff1e, /* bx lr */
88 };
89 for (n = 0; n < ARRAY_SIZE(board_setup_blob); n++) {
90 board_setup_blob[n] = tswap32(board_setup_blob[n]);
91 }
92 rom_add_blob_fixed("board-setup", board_setup_blob,
93 sizeof(board_setup_blob), BOARD_SETUP_ADDR);
94}
95
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96static struct arm_boot_info zynq_binfo = {};
97
98static void gem_init(NICInfo *nd, uint32_t base, qemu_irq irq)
99{
100 DeviceState *dev;
101 SysBusDevice *s;
102
c2de81e2 103 dev = qdev_create(NULL, TYPE_CADENCE_GEM);
7fcd57e8 104 if (nd->used) {
c2de81e2 105 qemu_check_nic_model(nd, TYPE_CADENCE_GEM);
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106 qdev_set_nic_properties(dev, nd);
107 }
e3260506 108 qdev_init_nofail(dev);
1356b98d 109 s = SYS_BUS_DEVICE(dev);
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110 sysbus_mmio_map(s, 0, base);
111 sysbus_connect_irq(s, 0, irq);
112}
113
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114static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq,
115 bool is_qspi)
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116{
117 DeviceState *dev;
118 SysBusDevice *busdev;
119 SSIBus *spi;
79f5d67e 120 DeviceState *flash_dev;
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121 int i, j;
122 int num_busses = is_qspi ? NUM_QSPI_BUSSES : 1;
123 int num_ss = is_qspi ? NUM_QSPI_FLASHES : NUM_SPI_FLASHES;
559d489f 124
6b91f015 125 dev = qdev_create(NULL, is_qspi ? "xlnx.ps7-qspi" : "xlnx.ps7-spi");
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126 qdev_prop_set_uint8(dev, "num-txrx-bytes", is_qspi ? 4 : 1);
127 qdev_prop_set_uint8(dev, "num-ss-bits", num_ss);
128 qdev_prop_set_uint8(dev, "num-busses", num_busses);
559d489f 129 qdev_init_nofail(dev);
1356b98d 130 busdev = SYS_BUS_DEVICE(dev);
559d489f 131 sysbus_mmio_map(busdev, 0, base_addr);
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132 if (is_qspi) {
133 sysbus_mmio_map(busdev, 1, 0xFC000000);
134 }
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135 sysbus_connect_irq(busdev, 0, irq);
136
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137 for (i = 0; i < num_busses; ++i) {
138 char bus_name[16];
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139 qemu_irq cs_line;
140
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141 snprintf(bus_name, 16, "spi%d", i);
142 spi = (SSIBus *)qdev_get_child_bus(dev, bus_name);
143
144 for (j = 0; j < num_ss; ++j) {
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145 DriveInfo *dinfo = drive_get_next(IF_MTD);
146 flash_dev = ssi_create_slave_no_init(spi, "n25q128");
147 if (dinfo) {
148 qdev_prop_set_drive(flash_dev, "drive",
149 blk_by_legacy_dinfo(dinfo), &error_fatal);
150 }
151 qdev_init_nofail(flash_dev);
559d489f 152
de77914e 153 cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
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154 sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line);
155 }
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156 }
157
158}
159
3ef96221 160static void zynq_init(MachineState *machine)
e3260506 161{
3ef96221 162 ram_addr_t ram_size = machine->ram_size;
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163 const char *kernel_filename = machine->kernel_filename;
164 const char *kernel_cmdline = machine->kernel_cmdline;
165 const char *initrd_filename = machine->initrd_filename;
17c2f0bf 166 ARMCPU *cpu;
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167 MemoryRegion *address_space_mem = get_system_memory();
168 MemoryRegion *ext_ram = g_new(MemoryRegion, 1);
169 MemoryRegion *ocm_ram = g_new(MemoryRegion, 1);
27a49d3b 170 DeviceState *dev;
e3260506 171 SysBusDevice *busdev;
e3260506 172 qemu_irq pic[64];
e3260506 173 int n;
e3260506 174
ba1ba5cc 175 cpu = ARM_CPU(object_new(machine->cpu_type));
d8bbdcf8 176
61e2f352
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177 /* By default A9 CPUs have EL3 enabled. This board does not
178 * currently support EL3 so the CPU EL3 property is disabled before
179 * realization.
180 */
181 if (object_property_find(OBJECT(cpu), "has_el3", NULL)) {
007b0657 182 object_property_set_bool(OBJECT(cpu), false, "has_el3", &error_fatal);
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183 }
184
007b0657
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185 object_property_set_int(OBJECT(cpu), ZYNQ_BOARD_MIDR, "midr",
186 &error_fatal);
187 object_property_set_int(OBJECT(cpu), MPCORE_PERIPHBASE, "reset-cbar",
188 &error_fatal);
189 object_property_set_bool(OBJECT(cpu), true, "realized", &error_fatal);
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190
191 /* max 2GB ram */
192 if (ram_size > 0x80000000) {
193 ram_size = 0x80000000;
194 }
195
196 /* DDR remapped to address zero. */
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197 memory_region_allocate_system_memory(ext_ram, NULL, "zynq.ext_ram",
198 ram_size);
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199 memory_region_add_subregion(address_space_mem, 0, ext_ram);
200
201 /* 256K of on-chip memory */
98a99ce0 202 memory_region_init_ram(ocm_ram, NULL, "zynq.ocm_ram", 256 << 10,
f8ed85ac 203 &error_fatal);
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204 memory_region_add_subregion(address_space_mem, 0xFFFC0000, ocm_ram);
205
206 DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0);
207
208 /* AMD */
209 pflash_cfi02_register(0xe2000000, NULL, "zynq.pflash", FLASH_SIZE,
4be74634 210 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
fa1d36df 211 FLASH_SECTOR_SIZE,
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212 FLASH_SIZE/FLASH_SECTOR_SIZE, 1,
213 1, 0x0066, 0x0022, 0x0000, 0x0000, 0x0555, 0x2aa,
214 0);
215
216 dev = qdev_create(NULL, "xilinx,zynq_slcr");
217 qdev_init_nofail(dev);
1356b98d 218 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8000000);
e3260506 219
c2de81e2 220 dev = qdev_create(NULL, TYPE_A9MPCORE_PRIV);
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221 qdev_prop_set_uint32(dev, "num-cpu", 1);
222 qdev_init_nofail(dev);
1356b98d 223 busdev = SYS_BUS_DEVICE(dev);
c2577128 224 sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE);
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225 sysbus_connect_irq(busdev, 0,
226 qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));
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227
228 for (n = 0; n < 64; n++) {
229 pic[n] = qdev_get_gpio_in(dev, n);
230 }
231
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232 zynq_init_spi_flashes(0xE0006000, pic[58-IRQ_OFFSET], false);
233 zynq_init_spi_flashes(0xE0007000, pic[81-IRQ_OFFSET], false);
234 zynq_init_spi_flashes(0xE000D000, pic[51-IRQ_OFFSET], true);
559d489f 235
892776ce 236 sysbus_create_simple("xlnx,ps7-usb", 0xE0002000, pic[53-IRQ_OFFSET]);
70ef6a5b 237 sysbus_create_simple("xlnx,ps7-usb", 0xE0003000, pic[76-IRQ_OFFSET]);
892776ce 238
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239 cadence_uart_create(0xE0000000, pic[59 - IRQ_OFFSET], serial_hd(0));
240 cadence_uart_create(0xE0001000, pic[82 - IRQ_OFFSET], serial_hd(1));
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241
242 sysbus_create_varargs("cadence_ttc", 0xF8001000,
243 pic[42-IRQ_OFFSET], pic[43-IRQ_OFFSET], pic[44-IRQ_OFFSET], NULL);
244 sysbus_create_varargs("cadence_ttc", 0xF8002000,
245 pic[69-IRQ_OFFSET], pic[70-IRQ_OFFSET], pic[71-IRQ_OFFSET], NULL);
246
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247 gem_init(&nd_table[0], 0xE000B000, pic[54-IRQ_OFFSET]);
248 gem_init(&nd_table[1], 0xE000C000, pic[77-IRQ_OFFSET]);
e3260506 249
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250 for (n = 0; n < 2; n++) {
251 int hci_irq = n ? 79 : 56;
252 hwaddr hci_addr = n ? 0xE0101000 : 0xE0100000;
253 DriveInfo *di;
254 BlockBackend *blk;
255 DeviceState *carddev;
256
257 /* Compatible with:
258 * - SD Host Controller Specification Version 2.0 Part A2
259 * - SDIO Specification Version 2.0
260 * - MMC Specification Version 3.31
261 */
262 dev = qdev_create(NULL, TYPE_SYSBUS_SDHCI);
263 qdev_prop_set_uint8(dev, "sd-spec-version", 2);
264 qdev_prop_set_uint64(dev, "capareg", ZYNQ_SDHCI_CAPABILITIES);
265 qdev_init_nofail(dev);
266 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, hci_addr);
267 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[hci_irq - IRQ_OFFSET]);
268
269 di = drive_get_next(IF_SD);
270 blk = di ? blk_by_legacy_dinfo(di) : NULL;
271 carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD);
272 qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
273 object_property_set_bool(OBJECT(carddev), true, "realized",
274 &error_fatal);
275 }
eb4f566b 276
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GR
277 dev = qdev_create(NULL, TYPE_ZYNQ_XADC);
278 qdev_init_nofail(dev);
279 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8007100);
280 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[39-IRQ_OFFSET]);
281
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282 dev = qdev_create(NULL, "pl330");
283 qdev_prop_set_uint8(dev, "num_chnls", 8);
284 qdev_prop_set_uint8(dev, "num_periph_req", 4);
285 qdev_prop_set_uint8(dev, "num_events", 16);
286
287 qdev_prop_set_uint8(dev, "data_width", 64);
288 qdev_prop_set_uint8(dev, "wr_cap", 8);
289 qdev_prop_set_uint8(dev, "wr_q_dep", 16);
290 qdev_prop_set_uint8(dev, "rd_cap", 8);
291 qdev_prop_set_uint8(dev, "rd_q_dep", 16);
292 qdev_prop_set_uint16(dev, "data_buffer_dep", 256);
293
294 qdev_init_nofail(dev);
295 busdev = SYS_BUS_DEVICE(dev);
296 sysbus_mmio_map(busdev, 0, 0xF8003000);
297 sysbus_connect_irq(busdev, 0, pic[45-IRQ_OFFSET]); /* abort irq line */
298 for (n = 0; n < 8; ++n) { /* event irqs */
299 sysbus_connect_irq(busdev, n + 1, pic[dma_irqs[n] - IRQ_OFFSET]);
300 }
301
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302 dev = qdev_create(NULL, "xlnx.ps7-dev-cfg");
303 qdev_init_nofail(dev);
304 busdev = SYS_BUS_DEVICE(dev);
305 sysbus_connect_irq(busdev, 0, pic[40 - IRQ_OFFSET]);
306 sysbus_mmio_map(busdev, 0, 0xF8007000);
307
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308 zynq_binfo.ram_size = ram_size;
309 zynq_binfo.kernel_filename = kernel_filename;
310 zynq_binfo.kernel_cmdline = kernel_cmdline;
311 zynq_binfo.initrd_filename = initrd_filename;
312 zynq_binfo.nb_cpus = 1;
313 zynq_binfo.board_id = 0xd32;
314 zynq_binfo.loader_start = 0;
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315 zynq_binfo.board_setup_addr = BOARD_SETUP_ADDR;
316 zynq_binfo.write_board_setup = zynq_write_board_setup;
317
182735ef 318 arm_load_kernel(ARM_CPU(first_cpu), &zynq_binfo);
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319}
320
e264d29d 321static void zynq_machine_init(MachineClass *mc)
e3260506 322{
e264d29d
EH
323 mc->desc = "Xilinx Zynq Platform Baseboard for Cortex-A9";
324 mc->init = zynq_init;
e264d29d
EH
325 mc->max_cpus = 1;
326 mc->no_sdcard = 1;
4672cbd7 327 mc->ignore_memory_transaction_failures = true;
ba1ba5cc 328 mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
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329}
330
e264d29d 331DEFINE_MACHINE("xilinx-zynq-a9", zynq_machine_init)
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