hw/arm/aspeed.c

   1 /*
   2  * OpenPOWER Palmetto BMC
   3  *
   4  * Andrew Jeffery <[email protected]>
   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"
  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 "sysemu/blockdev.h"
  23
  24 static struct arm_boot_info aspeed_board_binfo = {
  25     .board_id = -1, /* device-tree-only board */
  26     .nb_cpus = 1,
  27 };
  28
  29 typedef struct AspeedBoardState {
  30     AspeedSoCState soc;
  31     MemoryRegion ram;
  32 } AspeedBoardState;
  33
  34 typedef struct AspeedBoardConfig {
  35     const char *soc_name;
  36     uint32_t hw_strap1;
  37     const char *fmc_model;
  38     const char *spi_model;
  39     uint32_t num_cs;
  40 } AspeedBoardConfig;
  41
  42 enum {
  43     PALMETTO_BMC,
  44     AST2500_EVB,
  45     ROMULUS_BMC,
  46 };
  47
  48 /* Palmetto hardware value: 0x120CE416 */
  49 #define PALMETTO_BMC_HW_STRAP1 (                                        \
  50         SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) |               \
  51         SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
  52         SCU_AST2400_HW_STRAP_ACPI_DIS |                                 \
  53         SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) |       \
  54         SCU_HW_STRAP_VGA_CLASS_CODE |                                   \
  55         SCU_HW_STRAP_LPC_RESET_PIN |                                    \
  56         SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) |                \
  57         SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
  58         SCU_HW_STRAP_SPI_WIDTH |                                        \
  59         SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) |                       \
  60         SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
  61
  62 /* AST2500 evb hardware value: 0xF100C2E6 */
  63 #define AST2500_EVB_HW_STRAP1 ((                                        \
  64         AST2500_HW_STRAP1_DEFAULTS |                                    \
  65         SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE |                     \
  66         SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE |                        \
  67         SCU_AST2500_HW_STRAP_UART_DEBUG |                               \
  68         SCU_AST2500_HW_STRAP_DDR4_ENABLE |                              \
  69         SCU_HW_STRAP_MAC1_RGMII |                                       \
  70         SCU_HW_STRAP_MAC0_RGMII) &                                      \
  71         ~SCU_HW_STRAP_2ND_BOOT_WDT)
  72
  73 /* Romulus hardware value: 0xF10AD206 */
  74 #define ROMULUS_BMC_HW_STRAP1 (                                         \
  75         AST2500_HW_STRAP1_DEFAULTS |                                    \
  76         SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE |                     \
  77         SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE |                        \
  78         SCU_AST2500_HW_STRAP_UART_DEBUG |                               \
  79         SCU_AST2500_HW_STRAP_DDR4_ENABLE |                              \
  80         SCU_AST2500_HW_STRAP_ACPI_ENABLE |                              \
  81         SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
  82
  83 static const AspeedBoardConfig aspeed_boards[] = {
  84     [PALMETTO_BMC] = {
  85         .soc_name  = "ast2400-a1",
  86         .hw_strap1 = PALMETTO_BMC_HW_STRAP1,
  87         .fmc_model = "n25q256a",
  88         .spi_model = "mx25l25635e",
  89         .num_cs    = 1,
  90     },
  91     [AST2500_EVB]  = {
  92         .soc_name  = "ast2500-a1",
  93         .hw_strap1 = AST2500_EVB_HW_STRAP1,
  94         .fmc_model = "n25q256a",
  95         .spi_model = "mx25l25635e",
  96         .num_cs    = 1,
  97     },
  98     [ROMULUS_BMC]  = {
  99         .soc_name  = "ast2500-a1",
 100         .hw_strap1 = ROMULUS_BMC_HW_STRAP1,
 101         .fmc_model = "n25q256a",
 102         .spi_model = "mx66l1g45g",
 103         .num_cs    = 2,
 104     },
 105 };
 106
 107 static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype,
 108                                       Error **errp)
 109 {
 110     int i ;
 111
 112     for (i = 0; i < s->num_cs; ++i) {
 113         AspeedSMCFlash *fl = &s->flashes[i];
 114         DriveInfo *dinfo = drive_get_next(IF_MTD);
 115         qemu_irq cs_line;
 116
 117         /*
 118          * FIXME: check that we are not using a flash module exceeding
 119          * the controller segment size
 120          */
 121         fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
 122         if (dinfo) {
 123             qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
 124                                 errp);
 125         }
 126         qdev_init_nofail(fl->flash);
 127
 128         cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
 129         sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
 130     }
 131 }
 132
 133 static void aspeed_board_init(MachineState *machine,
 134                               const AspeedBoardConfig *cfg)
 135 {
 136     AspeedBoardState *bmc;
 137     AspeedSoCClass *sc;
 138
 139     bmc = g_new0(AspeedBoardState, 1);
 140     object_initialize(&bmc->soc, (sizeof(bmc->soc)), cfg->soc_name);
 141     object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc),
 142                               &error_abort);
 143
 144     sc = ASPEED_SOC_GET_CLASS(&bmc->soc);
 145
 146     object_property_set_int(OBJECT(&bmc->soc), ram_size, "ram-size",
 147                            &error_abort);
 148     object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1",
 149                             &error_abort);
 150     object_property_set_int(OBJECT(&bmc->soc), cfg->num_cs, "num-cs",
 151                             &error_abort);
 152     object_property_set_bool(OBJECT(&bmc->soc), true, "realized",
 153                              &error_abort);
 154
 155     /*
 156      * Allocate RAM after the memory controller has checked the size
 157      * was valid. If not, a default value is used.
 158      */
 159     ram_size = object_property_get_int(OBJECT(&bmc->soc), "ram-size",
 160                                        &error_abort);
 161
 162     memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size);
 163     memory_region_add_subregion(get_system_memory(), sc->info->sdram_base,
 164                                 &bmc->ram);
 165     object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram),
 166                                    &error_abort);
 167
 168     aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort);
 169     aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort);
 170
 171     aspeed_board_binfo.kernel_filename = machine->kernel_filename;
 172     aspeed_board_binfo.initrd_filename = machine->initrd_filename;
 173     aspeed_board_binfo.kernel_cmdline = machine->kernel_cmdline;
 174     aspeed_board_binfo.ram_size = ram_size;
 175     aspeed_board_binfo.loader_start = sc->info->sdram_base;
 176
 177     arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo);
 178 }
 179
 180 static void palmetto_bmc_init(MachineState *machine)
 181 {
 182     aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]);
 183 }
 184
 185 static void palmetto_bmc_class_init(ObjectClass *oc, void *data)
 186 {
 187     MachineClass *mc = MACHINE_CLASS(oc);
 188
 189     mc->desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)";
 190     mc->init = palmetto_bmc_init;
 191     mc->max_cpus = 1;
 192     mc->no_sdcard = 1;
 193     mc->no_floppy = 1;
 194     mc->no_cdrom = 1;
 195     mc->no_parallel = 1;
 196 }
 197
 198 static const TypeInfo palmetto_bmc_type = {
 199     .name = MACHINE_TYPE_NAME("palmetto-bmc"),
 200     .parent = TYPE_MACHINE,
 201     .class_init = palmetto_bmc_class_init,
 202 };
 203
 204 static void ast2500_evb_init(MachineState *machine)
 205 {
 206     aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]);
 207 }
 208
 209 static void ast2500_evb_class_init(ObjectClass *oc, void *data)
 210 {
 211     MachineClass *mc = MACHINE_CLASS(oc);
 212
 213     mc->desc = "Aspeed AST2500 EVB (ARM1176)";
 214     mc->init = ast2500_evb_init;
 215     mc->max_cpus = 1;
 216     mc->no_sdcard = 1;
 217     mc->no_floppy = 1;
 218     mc->no_cdrom = 1;
 219     mc->no_parallel = 1;
 220 }
 221
 222 static const TypeInfo ast2500_evb_type = {
 223     .name = MACHINE_TYPE_NAME("ast2500-evb"),
 224     .parent = TYPE_MACHINE,
 225     .class_init = ast2500_evb_class_init,
 226 };
 227
 228 static void romulus_bmc_init(MachineState *machine)
 229 {
 230     aspeed_board_init(machine, &aspeed_boards[ROMULUS_BMC]);
 231 }
 232
 233 static void romulus_bmc_class_init(ObjectClass *oc, void *data)
 234 {
 235     MachineClass *mc = MACHINE_CLASS(oc);
 236
 237     mc->desc = "OpenPOWER Romulus BMC (ARM1176)";
 238     mc->init = romulus_bmc_init;
 239     mc->max_cpus = 1;
 240     mc->no_sdcard = 1;
 241     mc->no_floppy = 1;
 242     mc->no_cdrom = 1;
 243     mc->no_parallel = 1;
 244 }
 245
 246 static const TypeInfo romulus_bmc_type = {
 247     .name = MACHINE_TYPE_NAME("romulus-bmc"),
 248     .parent = TYPE_MACHINE,
 249     .class_init = romulus_bmc_class_init,
 250 };
 251
 252 static void aspeed_machine_init(void)
 253 {
 254     type_register_static(&palmetto_bmc_type);
 255     type_register_static(&ast2500_evb_type);
 256     type_register_static(&romulus_bmc_type);
 257 }
 258
 259 type_init(aspeed_machine_init)