aspeed: add support for the witherspoon-bmc board
[qemu/rayw.git] / hw / arm / aspeed.c
blob732c034cca4387a889749c7005bed25e10a0fd36
1 /*
2 * OpenPOWER Palmetto BMC
4 * Andrew Jeffery <andrew@aj.id.au>
6 * Copyright 2016 IBM Corp.
8 * This code is licensed under the GPL version 2 or later. See
9 * the COPYING file in the top-level directory.
12 #include "qemu/osdep.h"
13 #include "qapi/error.h"
14 #include "qemu-common.h"
15 #include "cpu.h"
16 #include "exec/address-spaces.h"
17 #include "hw/arm/arm.h"
18 #include "hw/arm/aspeed_soc.h"
19 #include "hw/boards.h"
20 #include "qemu/log.h"
21 #include "sysemu/block-backend.h"
22 #include "hw/loader.h"
23 #include "qemu/error-report.h"
25 static struct arm_boot_info aspeed_board_binfo = {
26 .board_id = -1, /* device-tree-only board */
27 .nb_cpus = 1,
30 typedef struct AspeedBoardState {
31 AspeedSoCState soc;
32 MemoryRegion ram;
33 } AspeedBoardState;
35 typedef struct AspeedBoardConfig {
36 const char *soc_name;
37 uint32_t hw_strap1;
38 const char *fmc_model;
39 const char *spi_model;
40 uint32_t num_cs;
41 void (*i2c_init)(AspeedBoardState *bmc);
42 } AspeedBoardConfig;
44 enum {
45 PALMETTO_BMC,
46 AST2500_EVB,
47 ROMULUS_BMC,
48 WITHERSPOON_BMC,
51 /* Palmetto hardware value: 0x120CE416 */
52 #define PALMETTO_BMC_HW_STRAP1 ( \
53 SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
54 SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
55 SCU_AST2400_HW_STRAP_ACPI_DIS | \
56 SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
57 SCU_HW_STRAP_VGA_CLASS_CODE | \
58 SCU_HW_STRAP_LPC_RESET_PIN | \
59 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
60 SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
61 SCU_HW_STRAP_SPI_WIDTH | \
62 SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
63 SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
65 /* AST2500 evb hardware value: 0xF100C2E6 */
66 #define AST2500_EVB_HW_STRAP1 (( \
67 AST2500_HW_STRAP1_DEFAULTS | \
68 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
69 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
70 SCU_AST2500_HW_STRAP_UART_DEBUG | \
71 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
72 SCU_HW_STRAP_MAC1_RGMII | \
73 SCU_HW_STRAP_MAC0_RGMII) & \
74 ~SCU_HW_STRAP_2ND_BOOT_WDT)
76 /* Romulus hardware value: 0xF10AD206 */
77 #define ROMULUS_BMC_HW_STRAP1 ( \
78 AST2500_HW_STRAP1_DEFAULTS | \
79 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
80 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
81 SCU_AST2500_HW_STRAP_UART_DEBUG | \
82 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
83 SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
84 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
86 /* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */
87 #define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1
89 static void palmetto_bmc_i2c_init(AspeedBoardState *bmc);
90 static void ast2500_evb_i2c_init(AspeedBoardState *bmc);
91 static void witherspoon_bmc_i2c_init(AspeedBoardState *bmc);
93 static const AspeedBoardConfig aspeed_boards[] = {
94 [PALMETTO_BMC] = {
95 .soc_name = "ast2400-a1",
96 .hw_strap1 = PALMETTO_BMC_HW_STRAP1,
97 .fmc_model = "n25q256a",
98 .spi_model = "mx25l25635e",
99 .num_cs = 1,
100 .i2c_init = palmetto_bmc_i2c_init,
102 [AST2500_EVB] = {
103 .soc_name = "ast2500-a1",
104 .hw_strap1 = AST2500_EVB_HW_STRAP1,
105 .fmc_model = "n25q256a",
106 .spi_model = "mx25l25635e",
107 .num_cs = 1,
108 .i2c_init = ast2500_evb_i2c_init,
110 [ROMULUS_BMC] = {
111 .soc_name = "ast2500-a1",
112 .hw_strap1 = ROMULUS_BMC_HW_STRAP1,
113 .fmc_model = "n25q256a",
114 .spi_model = "mx66l1g45g",
115 .num_cs = 2,
117 [WITHERSPOON_BMC] = {
118 .soc_name = "ast2500-a1",
119 .hw_strap1 = WITHERSPOON_BMC_HW_STRAP1,
120 .fmc_model = "mx25l25635e",
121 .spi_model = "mx66l1g45g",
122 .num_cs = 2,
123 .i2c_init = witherspoon_bmc_i2c_init,
127 #define FIRMWARE_ADDR 0x0
129 static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size,
130 Error **errp)
132 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
133 uint8_t *storage;
134 int64_t size;
136 /* The block backend size should have already been 'validated' by
137 * the creation of the m25p80 object.
139 size = blk_getlength(blk);
140 if (size <= 0) {
141 error_setg(errp, "failed to get flash size");
142 return;
145 if (rom_size > size) {
146 rom_size = size;
149 storage = g_new0(uint8_t, rom_size);
150 if (blk_pread(blk, 0, storage, rom_size) < 0) {
151 error_setg(errp, "failed to read the initial flash content");
152 return;
155 rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr);
156 g_free(storage);
159 static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype,
160 Error **errp)
162 int i ;
164 for (i = 0; i < s->num_cs; ++i) {
165 AspeedSMCFlash *fl = &s->flashes[i];
166 DriveInfo *dinfo = drive_get_next(IF_MTD);
167 qemu_irq cs_line;
169 fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
170 if (dinfo) {
171 qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
172 errp);
174 qdev_init_nofail(fl->flash);
176 cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
177 sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
181 static void aspeed_board_init(MachineState *machine,
182 const AspeedBoardConfig *cfg)
184 AspeedBoardState *bmc;
185 AspeedSoCClass *sc;
186 DriveInfo *drive0 = drive_get(IF_MTD, 0, 0);
188 bmc = g_new0(AspeedBoardState, 1);
189 object_initialize(&bmc->soc, (sizeof(bmc->soc)), cfg->soc_name);
190 object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc),
191 &error_abort);
193 sc = ASPEED_SOC_GET_CLASS(&bmc->soc);
195 object_property_set_uint(OBJECT(&bmc->soc), ram_size, "ram-size",
196 &error_abort);
197 object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1",
198 &error_abort);
199 object_property_set_int(OBJECT(&bmc->soc), cfg->num_cs, "num-cs",
200 &error_abort);
201 if (machine->kernel_filename) {
203 * When booting with a -kernel command line there is no u-boot
204 * that runs to unlock the SCU. In this case set the default to
205 * be unlocked as the kernel expects
207 object_property_set_int(OBJECT(&bmc->soc), ASPEED_SCU_PROT_KEY,
208 "hw-prot-key", &error_abort);
210 object_property_set_bool(OBJECT(&bmc->soc), true, "realized",
211 &error_abort);
214 * Allocate RAM after the memory controller has checked the size
215 * was valid. If not, a default value is used.
217 ram_size = object_property_get_uint(OBJECT(&bmc->soc), "ram-size",
218 &error_abort);
220 memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size);
221 memory_region_add_subregion(get_system_memory(), sc->info->sdram_base,
222 &bmc->ram);
223 object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram),
224 &error_abort);
226 aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort);
227 aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort);
229 /* Install first FMC flash content as a boot rom. */
230 if (drive0) {
231 AspeedSMCFlash *fl = &bmc->soc.fmc.flashes[0];
232 MemoryRegion *boot_rom = g_new(MemoryRegion, 1);
235 * create a ROM region using the default mapping window size of
236 * the flash module. The window size is 64MB for the AST2400
237 * SoC and 128MB for the AST2500 SoC, which is twice as big as
238 * needed by the flash modules of the Aspeed machines.
240 memory_region_init_rom(boot_rom, OBJECT(bmc), "aspeed.boot_rom",
241 fl->size, &error_abort);
242 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR,
243 boot_rom);
244 write_boot_rom(drive0, FIRMWARE_ADDR, fl->size, &error_abort);
247 aspeed_board_binfo.kernel_filename = machine->kernel_filename;
248 aspeed_board_binfo.initrd_filename = machine->initrd_filename;
249 aspeed_board_binfo.kernel_cmdline = machine->kernel_cmdline;
250 aspeed_board_binfo.ram_size = ram_size;
251 aspeed_board_binfo.loader_start = sc->info->sdram_base;
253 if (cfg->i2c_init) {
254 cfg->i2c_init(bmc);
257 arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo);
260 static void palmetto_bmc_i2c_init(AspeedBoardState *bmc)
262 AspeedSoCState *soc = &bmc->soc;
263 DeviceState *dev;
265 /* The palmetto platform expects a ds3231 RTC but a ds1338 is
266 * enough to provide basic RTC features. Alarms will be missing */
267 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), "ds1338", 0x68);
269 /* add a TMP423 temperature sensor */
270 dev = i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2),
271 "tmp423", 0x4c);
272 object_property_set_int(OBJECT(dev), 31000, "temperature0", &error_abort);
273 object_property_set_int(OBJECT(dev), 28000, "temperature1", &error_abort);
274 object_property_set_int(OBJECT(dev), 20000, "temperature2", &error_abort);
275 object_property_set_int(OBJECT(dev), 110000, "temperature3", &error_abort);
278 static void palmetto_bmc_init(MachineState *machine)
280 aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]);
283 static void palmetto_bmc_class_init(ObjectClass *oc, void *data)
285 MachineClass *mc = MACHINE_CLASS(oc);
287 mc->desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)";
288 mc->init = palmetto_bmc_init;
289 mc->max_cpus = 1;
290 mc->no_sdcard = 1;
291 mc->no_floppy = 1;
292 mc->no_cdrom = 1;
293 mc->no_parallel = 1;
296 static const TypeInfo palmetto_bmc_type = {
297 .name = MACHINE_TYPE_NAME("palmetto-bmc"),
298 .parent = TYPE_MACHINE,
299 .class_init = palmetto_bmc_class_init,
302 static void ast2500_evb_i2c_init(AspeedBoardState *bmc)
304 AspeedSoCState *soc = &bmc->soc;
306 /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
307 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "tmp105", 0x4d);
310 static void ast2500_evb_init(MachineState *machine)
312 aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]);
315 static void ast2500_evb_class_init(ObjectClass *oc, void *data)
317 MachineClass *mc = MACHINE_CLASS(oc);
319 mc->desc = "Aspeed AST2500 EVB (ARM1176)";
320 mc->init = ast2500_evb_init;
321 mc->max_cpus = 1;
322 mc->no_sdcard = 1;
323 mc->no_floppy = 1;
324 mc->no_cdrom = 1;
325 mc->no_parallel = 1;
328 static const TypeInfo ast2500_evb_type = {
329 .name = MACHINE_TYPE_NAME("ast2500-evb"),
330 .parent = TYPE_MACHINE,
331 .class_init = ast2500_evb_class_init,
334 static void romulus_bmc_init(MachineState *machine)
336 aspeed_board_init(machine, &aspeed_boards[ROMULUS_BMC]);
339 static void romulus_bmc_class_init(ObjectClass *oc, void *data)
341 MachineClass *mc = MACHINE_CLASS(oc);
343 mc->desc = "OpenPOWER Romulus BMC (ARM1176)";
344 mc->init = romulus_bmc_init;
345 mc->max_cpus = 1;
346 mc->no_sdcard = 1;
347 mc->no_floppy = 1;
348 mc->no_cdrom = 1;
349 mc->no_parallel = 1;
352 static const TypeInfo romulus_bmc_type = {
353 .name = MACHINE_TYPE_NAME("romulus-bmc"),
354 .parent = TYPE_MACHINE,
355 .class_init = romulus_bmc_class_init,
358 static void witherspoon_bmc_i2c_init(AspeedBoardState *bmc)
360 AspeedSoCState *soc = &bmc->soc;
362 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "tmp423", 0x4c);
363 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 5), "tmp423", 0x4c);
365 /* The Witherspoon expects a TMP275 but a TMP105 is compatible */
366 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), "tmp105", 0x4a);
369 static void witherspoon_bmc_init(MachineState *machine)
371 aspeed_board_init(machine, &aspeed_boards[WITHERSPOON_BMC]);
374 static void witherspoon_bmc_class_init(ObjectClass *oc, void *data)
376 MachineClass *mc = MACHINE_CLASS(oc);
378 mc->desc = "OpenPOWER Witherspoon BMC (ARM1176)";
379 mc->init = witherspoon_bmc_init;
380 mc->max_cpus = 1;
381 mc->no_sdcard = 1;
382 mc->no_floppy = 1;
383 mc->no_cdrom = 1;
384 mc->no_parallel = 1;
387 static const TypeInfo witherspoon_bmc_type = {
388 .name = MACHINE_TYPE_NAME("witherspoon-bmc"),
389 .parent = TYPE_MACHINE,
390 .class_init = witherspoon_bmc_class_init,
393 static void aspeed_machine_init(void)
395 type_register_static(&palmetto_bmc_type);
396 type_register_static(&ast2500_evb_type);
397 type_register_static(&romulus_bmc_type);
398 type_register_static(&witherspoon_bmc_type);
401 type_init(aspeed_machine_init)