hw/arm/palmetto-bmc.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/ast2400.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 palmetto_bmc_binfo = {
  25     .loader_start = AST2400_SDRAM_BASE,
  26     .board_id = 0,
  27     .nb_cpus = 1,
  28 };
  29
  30 typedef struct PalmettoBMCState {
  31     AST2400State soc;
  32     MemoryRegion ram;
  33 } PalmettoBMCState;
  34
  35 static void palmetto_bmc_init_flashes(AspeedSMCState *s, const char *flashtype,
  36                                       Error **errp)
  37 {
  38     int i ;
  39
  40     for (i = 0; i < s->num_cs; ++i) {
  41         AspeedSMCFlash *fl = &s->flashes[i];
  42         DriveInfo *dinfo = drive_get_next(IF_MTD);
  43         qemu_irq cs_line;
  44
  45         /*
  46          * FIXME: check that we are not using a flash module exceeding
  47          * the controller segment size
  48          */
  49         fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
  50         if (dinfo) {
  51             qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
  52                                 errp);
  53         }
  54         qdev_init_nofail(fl->flash);
  55
  56         cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
  57         sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
  58     }
  59 }
  60
  61 static void palmetto_bmc_init(MachineState *machine)
  62 {
  63     PalmettoBMCState *bmc;
  64
  65     bmc = g_new0(PalmettoBMCState, 1);
  66     object_initialize(&bmc->soc, (sizeof(bmc->soc)), TYPE_AST2400);
  67     object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc),
  68                               &error_abort);
  69
  70     memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size);
  71     memory_region_add_subregion(get_system_memory(), AST2400_SDRAM_BASE,
  72                                 &bmc->ram);
  73     object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram),
  74                                    &error_abort);
  75     object_property_set_int(OBJECT(&bmc->soc), 0x120CE416, "hw-strap1",
  76                             &error_abort);
  77     object_property_set_bool(OBJECT(&bmc->soc), true, "realized",
  78                              &error_abort);
  79
  80     palmetto_bmc_init_flashes(&bmc->soc.smc, "n25q256a", &error_abort);
  81     palmetto_bmc_init_flashes(&bmc->soc.spi, "mx25l25635e", &error_abort);
  82
  83     palmetto_bmc_binfo.kernel_filename = machine->kernel_filename;
  84     palmetto_bmc_binfo.initrd_filename = machine->initrd_filename;
  85     palmetto_bmc_binfo.kernel_cmdline = machine->kernel_cmdline;
  86     palmetto_bmc_binfo.ram_size = ram_size;
  87     arm_load_kernel(ARM_CPU(first_cpu), &palmetto_bmc_binfo);
  88 }
  89
  90 static void palmetto_bmc_machine_init(MachineClass *mc)
  91 {
  92     mc->desc = "OpenPOWER Palmetto BMC";
  93     mc->init = palmetto_bmc_init;
  94     mc->max_cpus = 1;
  95     mc->no_sdcard = 1;
  96     mc->no_floppy = 1;
  97     mc->no_cdrom = 1;
  98     mc->no_sdcard = 1;
  99     mc->no_parallel = 1;
 100 }
 101
 102 DEFINE_MACHINE("palmetto-bmc", palmetto_bmc_machine_init);