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qemu/hw/arm/aspeed_ast2400_palmetto.c

81 lines
3.1 KiB
C

/*
* OpenPOWER Palmetto
*
* Copyright 2016 IBM Corp.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/arm/machines-qom.h"
#include "hw/arm/aspeed.h"
#include "hw/arm/aspeed_soc.h"
#include "hw/i2c/smbus_eeprom.h"
/* Palmetto hardware value: 0x120CE416 */
#define PALMETTO_BMC_HW_STRAP1 ( \
SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
SCU_AST2400_HW_STRAP_ACPI_DIS | \
SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
SCU_HW_STRAP_VGA_CLASS_CODE | \
SCU_HW_STRAP_LPC_RESET_PIN | \
SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
SCU_HW_STRAP_SPI_WIDTH | \
SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
static void palmetto_bmc_i2c_init(AspeedMachineState *bmc)
{
AspeedSoCState *soc = bmc->soc;
DeviceState *dev;
uint8_t *eeprom_buf = g_malloc0(32 * 1024);
/*
* The palmetto platform expects a ds3231 RTC but a ds1338 is
* enough to provide basic RTC features. Alarms will be missing
*/
i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 0), "ds1338", 0x68);
smbus_eeprom_init_one(aspeed_i2c_get_bus(&soc->i2c, 0), 0x50,
eeprom_buf);
/* add a TMP423 temperature sensor */
dev = DEVICE(i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 2),
"tmp423", 0x4c));
object_property_set_int(OBJECT(dev), "temperature0", 31000, &error_abort);
object_property_set_int(OBJECT(dev), "temperature1", 28000, &error_abort);
object_property_set_int(OBJECT(dev), "temperature2", 20000, &error_abort);
object_property_set_int(OBJECT(dev), "temperature3", 110000, &error_abort);
}
static void aspeed_machine_palmetto_class_init(ObjectClass *oc,
const void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
mc->desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)";
amc->soc_name = "ast2400-a1";
amc->hw_strap1 = PALMETTO_BMC_HW_STRAP1;
amc->fmc_model = "n25q256a";
amc->spi_model = "mx25l25635f";
amc->num_cs = 1;
amc->i2c_init = palmetto_bmc_i2c_init;
mc->default_ram_size = 256 * MiB;
aspeed_machine_class_init_cpus_defaults(mc);
};
static const TypeInfo aspeed_ast2400_palmetto_types[] = {
{
.name = MACHINE_TYPE_NAME("palmetto-bmc"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_palmetto_class_init,
.interfaces = arm_machine_interfaces,
}
};
DEFINE_TYPES(aspeed_ast2400_palmetto_types)