e1ad9bc405
A set of SPI flash slaves is attached under the flash controllers of the palmetto platform. "n25q256a" flash modules are used for the BMC and "mx25l25635e" for the host. These types are common in the OpenPower ecosystem. Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1467138270-32481-9-git-send-email-clg@kaod.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*
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* OpenPOWER Palmetto BMC
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*
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* Andrew Jeffery <andrew@aj.id.au>
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*
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* Copyright 2016 IBM Corp.
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*
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* This code is licensed under the GPL version 2 or later. See
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* the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qemu-common.h"
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#include "cpu.h"
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#include "exec/address-spaces.h"
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#include "hw/arm/arm.h"
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#include "hw/arm/ast2400.h"
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#include "hw/boards.h"
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#include "qemu/log.h"
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#include "sysemu/block-backend.h"
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#include "sysemu/blockdev.h"
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static struct arm_boot_info palmetto_bmc_binfo = {
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.loader_start = AST2400_SDRAM_BASE,
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.board_id = 0,
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.nb_cpus = 1,
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};
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typedef struct PalmettoBMCState {
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AST2400State soc;
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MemoryRegion ram;
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} PalmettoBMCState;
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static void palmetto_bmc_init_flashes(AspeedSMCState *s, const char *flashtype,
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Error **errp)
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{
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int i ;
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for (i = 0; i < s->num_cs; ++i) {
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AspeedSMCFlash *fl = &s->flashes[i];
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DriveInfo *dinfo = drive_get_next(IF_MTD);
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qemu_irq cs_line;
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/*
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* FIXME: check that we are not using a flash module exceeding
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* the controller segment size
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*/
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fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
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if (dinfo) {
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qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
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errp);
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}
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qdev_init_nofail(fl->flash);
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cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
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sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
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}
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}
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static void palmetto_bmc_init(MachineState *machine)
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{
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PalmettoBMCState *bmc;
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bmc = g_new0(PalmettoBMCState, 1);
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object_initialize(&bmc->soc, (sizeof(bmc->soc)), TYPE_AST2400);
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object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc),
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&error_abort);
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memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size);
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memory_region_add_subregion(get_system_memory(), AST2400_SDRAM_BASE,
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&bmc->ram);
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object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram),
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&error_abort);
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object_property_set_int(OBJECT(&bmc->soc), 0x120CE416, "hw-strap1",
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&error_abort);
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object_property_set_bool(OBJECT(&bmc->soc), true, "realized",
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&error_abort);
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palmetto_bmc_init_flashes(&bmc->soc.smc, "n25q256a", &error_abort);
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palmetto_bmc_init_flashes(&bmc->soc.spi, "mx25l25635e", &error_abort);
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palmetto_bmc_binfo.kernel_filename = machine->kernel_filename;
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palmetto_bmc_binfo.initrd_filename = machine->initrd_filename;
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palmetto_bmc_binfo.kernel_cmdline = machine->kernel_cmdline;
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palmetto_bmc_binfo.ram_size = ram_size;
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arm_load_kernel(ARM_CPU(first_cpu), &palmetto_bmc_binfo);
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}
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static void palmetto_bmc_machine_init(MachineClass *mc)
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{
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mc->desc = "OpenPOWER Palmetto BMC";
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mc->init = palmetto_bmc_init;
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mc->max_cpus = 1;
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mc->no_sdcard = 1;
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mc->no_floppy = 1;
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mc->no_cdrom = 1;
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mc->no_sdcard = 1;
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mc->no_parallel = 1;
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}
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DEFINE_MACHINE("palmetto-bmc", palmetto_bmc_machine_init);
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