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1/*
2 * OpenPOWER Palmetto BMC
3 *
4 * Andrew Jeffery <andrew@aj.id.au>
5 *
6 * Copyright 2016 IBM Corp.
7 *
8 * This code is licensed under the GPL version 2 or later. See
9 * the COPYING file in the top-level directory.
10 */
11
12#include "qemu/osdep.h"
da34e65c 13#include "qapi/error.h"
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14#include "qemu-common.h"
15#include "cpu.h"
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16#include "exec/address-spaces.h"
17#include "hw/arm/arm.h"
00442402 18#include "hw/arm/aspeed_soc.h"
327d8e4e 19#include "hw/boards.h"
03dd024f 20#include "qemu/log.h"
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21#include "sysemu/block-backend.h"
22#include "sysemu/blockdev.h"
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23#include "hw/loader.h"
24#include "qemu/error-report.h"
327d8e4e 25
74fb1f38 26static struct arm_boot_info aspeed_board_binfo = {
b033271f 27 .board_id = -1, /* device-tree-only board */
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28 .nb_cpus = 1,
29};
30
74fb1f38 31typedef struct AspeedBoardState {
ff90606f 32 AspeedSoCState soc;
327d8e4e 33 MemoryRegion ram;
74fb1f38 34} AspeedBoardState;
327d8e4e 35
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36typedef struct AspeedBoardConfig {
37 const char *soc_name;
38 uint32_t hw_strap1;
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39 const char *fmc_model;
40 const char *spi_model;
26d5df95 41 uint32_t num_cs;
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42} AspeedBoardConfig;
43
44enum {
45 PALMETTO_BMC,
9a7c1750 46 AST2500_EVB,
ef17f836 47 ROMULUS_BMC,
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48};
49
ef17f836 50/* Palmetto hardware value: 0x120CE416 */
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51#define PALMETTO_BMC_HW_STRAP1 ( \
52 SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
53 SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
54 SCU_AST2400_HW_STRAP_ACPI_DIS | \
55 SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
56 SCU_HW_STRAP_VGA_CLASS_CODE | \
57 SCU_HW_STRAP_LPC_RESET_PIN | \
58 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
59 SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
60 SCU_HW_STRAP_SPI_WIDTH | \
61 SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
62 SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
63
ef17f836 64/* AST2500 evb hardware value: 0xF100C2E6 */
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65#define AST2500_EVB_HW_STRAP1 (( \
66 AST2500_HW_STRAP1_DEFAULTS | \
67 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
68 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
69 SCU_AST2500_HW_STRAP_UART_DEBUG | \
70 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
71 SCU_HW_STRAP_MAC1_RGMII | \
72 SCU_HW_STRAP_MAC0_RGMII) & \
73 ~SCU_HW_STRAP_2ND_BOOT_WDT)
74
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75/* Romulus hardware value: 0xF10AD206 */
76#define ROMULUS_BMC_HW_STRAP1 ( \
77 AST2500_HW_STRAP1_DEFAULTS | \
78 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
79 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
80 SCU_AST2500_HW_STRAP_UART_DEBUG | \
81 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
82 SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
83 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
84
c3ba99f7 85static const AspeedBoardConfig aspeed_boards[] = {
6a0e947b 86 [PALMETTO_BMC] = {
bd407a21 87 .soc_name = "ast2400-a1",
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88 .hw_strap1 = PALMETTO_BMC_HW_STRAP1,
89 .fmc_model = "n25q256a",
90 .spi_model = "mx25l25635e",
26d5df95 91 .num_cs = 1,
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92 },
93 [AST2500_EVB] = {
94 .soc_name = "ast2500-a1",
95 .hw_strap1 = AST2500_EVB_HW_STRAP1,
96 .fmc_model = "n25q256a",
97 .spi_model = "mx25l25635e",
26d5df95 98 .num_cs = 1,
6a0e947b 99 },
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100 [ROMULUS_BMC] = {
101 .soc_name = "ast2500-a1",
102 .hw_strap1 = ROMULUS_BMC_HW_STRAP1,
103 .fmc_model = "n25q256a",
104 .spi_model = "mx66l1g45g",
26d5df95 105 .num_cs = 2,
ef17f836 106 },
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107};
108
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109#define FIRMWARE_ADDR 0x0
110
111static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size,
112 Error **errp)
113{
114 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
115 uint8_t *storage;
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116 int64_t size;
117
118 /* The block backend size should have already been 'validated' by
119 * the creation of the m25p80 object.
120 */
121 size = blk_getlength(blk);
122 if (size <= 0) {
123 error_setg(errp, "failed to get flash size");
124 return;
125 }
d769a1da 126
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127 if (rom_size > size) {
128 rom_size = size;
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129 }
130
131 storage = g_new0(uint8_t, rom_size);
132 if (blk_pread(blk, 0, storage, rom_size) < 0) {
133 error_setg(errp, "failed to read the initial flash content");
134 return;
135 }
136
137 rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr);
138 g_free(storage);
139}
140
74fb1f38 141static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype,
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142 Error **errp)
143{
144 int i ;
145
146 for (i = 0; i < s->num_cs; ++i) {
147 AspeedSMCFlash *fl = &s->flashes[i];
148 DriveInfo *dinfo = drive_get_next(IF_MTD);
149 qemu_irq cs_line;
150
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151 fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
152 if (dinfo) {
153 qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
154 errp);
155 }
156 qdev_init_nofail(fl->flash);
157
158 cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
159 sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
160 }
161}
162
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163static void aspeed_board_init(MachineState *machine,
164 const AspeedBoardConfig *cfg)
327d8e4e 165{
74fb1f38 166 AspeedBoardState *bmc;
b033271f 167 AspeedSoCClass *sc;
d769a1da 168 DriveInfo *drive0 = drive_get(IF_MTD, 0, 0);
327d8e4e 169
74fb1f38 170 bmc = g_new0(AspeedBoardState, 1);
c3ba99f7 171 object_initialize(&bmc->soc, (sizeof(bmc->soc)), cfg->soc_name);
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172 object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc),
173 &error_abort);
174
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175 sc = ASPEED_SOC_GET_CLASS(&bmc->soc);
176
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177 object_property_set_int(OBJECT(&bmc->soc), ram_size, "ram-size",
178 &error_abort);
c3ba99f7 179 object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1",
87e79af0 180 &error_abort);
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181 object_property_set_int(OBJECT(&bmc->soc), cfg->num_cs, "num-cs",
182 &error_abort);
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183 object_property_set_bool(OBJECT(&bmc->soc), true, "realized",
184 &error_abort);
185
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186 /*
187 * Allocate RAM after the memory controller has checked the size
188 * was valid. If not, a default value is used.
189 */
190 ram_size = object_property_get_int(OBJECT(&bmc->soc), "ram-size",
191 &error_abort);
192
193 memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size);
194 memory_region_add_subregion(get_system_memory(), sc->info->sdram_base,
195 &bmc->ram);
196 object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram),
197 &error_abort);
198
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199 aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort);
200 aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort);
74fb1f38 201
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202 /* Install first FMC flash content as a boot rom. */
203 if (drive0) {
204 AspeedSMCFlash *fl = &bmc->soc.fmc.flashes[0];
205 MemoryRegion *boot_rom = g_new(MemoryRegion, 1);
206
207 /*
208 * create a ROM region using the default mapping window size of
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209 * the flash module. The window size is 64MB for the AST2400
210 * SoC and 128MB for the AST2500 SoC, which is twice as big as
211 * needed by the flash modules of the Aspeed machines.
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212 */
213 memory_region_init_rom(boot_rom, OBJECT(bmc), "aspeed.boot_rom",
214 fl->size, &error_abort);
215 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR,
216 boot_rom);
217 write_boot_rom(drive0, FIRMWARE_ADDR, fl->size, &error_abort);
218 }
219
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220 aspeed_board_binfo.kernel_filename = machine->kernel_filename;
221 aspeed_board_binfo.initrd_filename = machine->initrd_filename;
222 aspeed_board_binfo.kernel_cmdline = machine->kernel_cmdline;
223 aspeed_board_binfo.ram_size = ram_size;
224 aspeed_board_binfo.loader_start = sc->info->sdram_base;
e1ad9bc4 225
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226 arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo);
227}
b033271f 228
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229static void palmetto_bmc_init(MachineState *machine)
230{
c3ba99f7 231 aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]);
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232}
233
74fb1f38 234static void palmetto_bmc_class_init(ObjectClass *oc, void *data)
327d8e4e 235{
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236 MachineClass *mc = MACHINE_CLASS(oc);
237
238 mc->desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)";
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239 mc->init = palmetto_bmc_init;
240 mc->max_cpus = 1;
241 mc->no_sdcard = 1;
242 mc->no_floppy = 1;
243 mc->no_cdrom = 1;
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244 mc->no_parallel = 1;
245}
246
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247static const TypeInfo palmetto_bmc_type = {
248 .name = MACHINE_TYPE_NAME("palmetto-bmc"),
249 .parent = TYPE_MACHINE,
250 .class_init = palmetto_bmc_class_init,
251};
252
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253static void ast2500_evb_init(MachineState *machine)
254{
255 aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]);
256}
257
258static void ast2500_evb_class_init(ObjectClass *oc, void *data)
259{
260 MachineClass *mc = MACHINE_CLASS(oc);
261
262 mc->desc = "Aspeed AST2500 EVB (ARM1176)";
263 mc->init = ast2500_evb_init;
264 mc->max_cpus = 1;
265 mc->no_sdcard = 1;
266 mc->no_floppy = 1;
267 mc->no_cdrom = 1;
268 mc->no_parallel = 1;
269}
270
271static const TypeInfo ast2500_evb_type = {
272 .name = MACHINE_TYPE_NAME("ast2500-evb"),
273 .parent = TYPE_MACHINE,
274 .class_init = ast2500_evb_class_init,
275};
276
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277static void romulus_bmc_init(MachineState *machine)
278{
279 aspeed_board_init(machine, &aspeed_boards[ROMULUS_BMC]);
280}
281
282static void romulus_bmc_class_init(ObjectClass *oc, void *data)
283{
284 MachineClass *mc = MACHINE_CLASS(oc);
285
286 mc->desc = "OpenPOWER Romulus BMC (ARM1176)";
287 mc->init = romulus_bmc_init;
288 mc->max_cpus = 1;
289 mc->no_sdcard = 1;
290 mc->no_floppy = 1;
291 mc->no_cdrom = 1;
292 mc->no_parallel = 1;
293}
294
295static const TypeInfo romulus_bmc_type = {
296 .name = MACHINE_TYPE_NAME("romulus-bmc"),
297 .parent = TYPE_MACHINE,
298 .class_init = romulus_bmc_class_init,
299};
300
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301static void aspeed_machine_init(void)
302{
303 type_register_static(&palmetto_bmc_type);
9a7c1750 304 type_register_static(&ast2500_evb_type);
ef17f836 305 type_register_static(&romulus_bmc_type);
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306}
307
308type_init(aspeed_machine_init)