hw/arm/aspeed.c

   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"
  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 } AspeedBoardConfig;
  40
  41 enum {
  42     PALMETTO_BMC,
  43     AST2500_EVB,
  44     ROMULUS_BMC,
  45 };
  46
  47 /* Palmetto hardware value: 0x120CE416 */
  48 #define PALMETTO_BMC_HW_STRAP1 (                                        \
  49         SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) |               \
  50         SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
  51         SCU_AST2400_HW_STRAP_ACPI_DIS |                                 \
  52         SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) |       \
  53         SCU_HW_STRAP_VGA_CLASS_CODE |                                   \
  54         SCU_HW_STRAP_LPC_RESET_PIN |                                    \
  55         SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) |                \
  56         SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
  57         SCU_HW_STRAP_SPI_WIDTH |                                        \
  58         SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) |                       \
  59         SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
  60
  61 /* AST2500 evb hardware value: 0xF100C2E6 */
  62 #define AST2500_EVB_HW_STRAP1 ((                                        \
  63         AST2500_HW_STRAP1_DEFAULTS |                                    \
  64         SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE |                     \
  65         SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE |                        \
  66         SCU_AST2500_HW_STRAP_UART_DEBUG |                               \
  67         SCU_AST2500_HW_STRAP_DDR4_ENABLE |                              \
  68         SCU_HW_STRAP_MAC1_RGMII |                                       \
  69         SCU_HW_STRAP_MAC0_RGMII) &                                      \
  70         ~SCU_HW_STRAP_2ND_BOOT_WDT)
  71
  72 /* Romulus hardware value: 0xF10AD206 */
  73 #define ROMULUS_BMC_HW_STRAP1 (                                         \
  74         AST2500_HW_STRAP1_DEFAULTS |                                    \
  75         SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE |                     \
  76         SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE |                        \
  77         SCU_AST2500_HW_STRAP_UART_DEBUG |                               \
  78         SCU_AST2500_HW_STRAP_DDR4_ENABLE |                              \
  79         SCU_AST2500_HW_STRAP_ACPI_ENABLE |                              \
  80         SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
  81
  82 static const AspeedBoardConfig aspeed_boards[] = {
  83     [PALMETTO_BMC] = {
  84         .soc_name  = "ast2400-a0",
  85         .hw_strap1 = PALMETTO_BMC_HW_STRAP1,
  86         .fmc_model = "n25q256a",
  87         .spi_model = "mx25l25635e",
  88     },
  89     [AST2500_EVB]  = {
  90         .soc_name  = "ast2500-a1",
  91         .hw_strap1 = AST2500_EVB_HW_STRAP1,
  92         .fmc_model = "n25q256a",
  93         .spi_model = "mx25l25635e",
  94     },
  95     [ROMULUS_BMC]  = {
  96         .soc_name  = "ast2500-a1",
  97         .hw_strap1 = ROMULUS_BMC_HW_STRAP1,
  98         .fmc_model = "n25q256a",
  99         .spi_model = "mx66l1g45g",
 100     },
 101 };
 102
 103 static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype,
 104                                       Error **errp)
 105 {
 106     int i ;
 107
 108     for (i = 0; i < s->num_cs; ++i) {
 109         AspeedSMCFlash *fl = &s->flashes[i];
 110         DriveInfo *dinfo = drive_get_next(IF_MTD);
 111         qemu_irq cs_line;
 112
 113         /*
 114          * FIXME: check that we are not using a flash module exceeding
 115          * the controller segment size
 116          */
 117         fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
 118         if (dinfo) {
 119             qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
 120                                 errp);
 121         }
 122         qdev_init_nofail(fl->flash);
 123
 124         cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
 125         sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
 126     }
 127 }
 128
 129 static void aspeed_board_init(MachineState *machine,
 130                               const AspeedBoardConfig *cfg)
 131 {
 132     AspeedBoardState *bmc;
 133     AspeedSoCClass *sc;
 134
 135     bmc = g_new0(AspeedBoardState, 1);
 136     object_initialize(&bmc->soc, (sizeof(bmc->soc)), cfg->soc_name);
 137     object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc),
 138                               &error_abort);
 139
 140     sc = ASPEED_SOC_GET_CLASS(&bmc->soc);
 141
 142     object_property_set_int(OBJECT(&bmc->soc), ram_size, "ram-size",
 143                            &error_abort);
 144     object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1",
 145                             &error_abort);
 146     object_property_set_bool(OBJECT(&bmc->soc), true, "realized",
 147                              &error_abort);
 148
 149     /*
 150      * Allocate RAM after the memory controller has checked the size
 151      * was valid. If not, a default value is used.
 152      */
 153     ram_size = object_property_get_int(OBJECT(&bmc->soc), "ram-size",
 154                                        &error_abort);
 155
 156     memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size);
 157     memory_region_add_subregion(get_system_memory(), sc->info->sdram_base,
 158                                 &bmc->ram);
 159     object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram),
 160                                    &error_abort);
 161
 162     aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort);
 163     aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort);
 164
 165     aspeed_board_binfo.kernel_filename = machine->kernel_filename;
 166     aspeed_board_binfo.initrd_filename = machine->initrd_filename;
 167     aspeed_board_binfo.kernel_cmdline = machine->kernel_cmdline;
 168     aspeed_board_binfo.ram_size = ram_size;
 169     aspeed_board_binfo.loader_start = sc->info->sdram_base;
 170
 171     arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo);
 172 }
 173
 174 static void palmetto_bmc_init(MachineState *machine)
 175 {
 176     aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]);
 177 }
 178
 179 static void palmetto_bmc_class_init(ObjectClass *oc, void *data)
 180 {
 181     MachineClass *mc = MACHINE_CLASS(oc);
 182
 183     mc->desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)";
 184     mc->init = palmetto_bmc_init;
 185     mc->max_cpus = 1;
 186     mc->no_sdcard = 1;
 187     mc->no_floppy = 1;
 188     mc->no_cdrom = 1;
 189     mc->no_parallel = 1;
 190 }
 191
 192 static const TypeInfo palmetto_bmc_type = {
 193     .name = MACHINE_TYPE_NAME("palmetto-bmc"),
 194     .parent = TYPE_MACHINE,
 195     .class_init = palmetto_bmc_class_init,
 196 };
 197
 198 static void ast2500_evb_init(MachineState *machine)
 199 {
 200     aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]);
 201 }
 202
 203 static void ast2500_evb_class_init(ObjectClass *oc, void *data)
 204 {
 205     MachineClass *mc = MACHINE_CLASS(oc);
 206
 207     mc->desc = "Aspeed AST2500 EVB (ARM1176)";
 208     mc->init = ast2500_evb_init;
 209     mc->max_cpus = 1;
 210     mc->no_sdcard = 1;
 211     mc->no_floppy = 1;
 212     mc->no_cdrom = 1;
 213     mc->no_parallel = 1;
 214 }
 215
 216 static const TypeInfo ast2500_evb_type = {
 217     .name = MACHINE_TYPE_NAME("ast2500-evb"),
 218     .parent = TYPE_MACHINE,
 219     .class_init = ast2500_evb_class_init,
 220 };
 221
 222 static void romulus_bmc_init(MachineState *machine)
 223 {
 224     aspeed_board_init(machine, &aspeed_boards[ROMULUS_BMC]);
 225 }
 226
 227 static void romulus_bmc_class_init(ObjectClass *oc, void *data)
 228 {
 229     MachineClass *mc = MACHINE_CLASS(oc);
 230
 231     mc->desc = "OpenPOWER Romulus BMC (ARM1176)";
 232     mc->init = romulus_bmc_init;
 233     mc->max_cpus = 1;
 234     mc->no_sdcard = 1;
 235     mc->no_floppy = 1;
 236     mc->no_cdrom = 1;
 237     mc->no_parallel = 1;
 238 }
 239
 240 static const TypeInfo romulus_bmc_type = {
 241     .name = MACHINE_TYPE_NAME("romulus-bmc"),
 242     .parent = TYPE_MACHINE,
 243     .class_init = romulus_bmc_class_init,
 244 };
 245
 246 static void aspeed_machine_init(void)
 247 {
 248     type_register_static(&palmetto_bmc_type);
 249     type_register_static(&ast2500_evb_type);
 250     type_register_static(&romulus_bmc_type);
 251 }
 252
 253 type_init(aspeed_machine_init)