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qemu/hw/arm/npcm7xx_boards.c
Peter Delevoryas 9618ebae45 hw/arm: Extract at24c_eeprom_init helper from Aspeed and Nuvoton boards 
This helper is useful in board initialization because lets users initialize and
realize an EEPROM on an I2C bus with a single function call.

Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Link: https://lore.kernel.org/r/20230128060543.95582-2-peter@pjd.dev
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-02-07 09:02:04 +01:00

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/*
* Machine definitions for boards featuring an NPCM7xx SoC.
*
* Copyright 2020 Google LLC
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "qemu/osdep.h"
#include "hw/arm/npcm7xx.h"
#include "hw/core/cpu.h"
#include "hw/i2c/i2c_mux_pca954x.h"
#include "hw/i2c/smbus_eeprom.h"
#include "hw/loader.h"
#include "hw/nvram/eeprom_at24c.h"
#include "hw/qdev-core.h"
#include "hw/qdev-properties.h"
#include "qapi/error.h"
#include "qemu/datadir.h"
#include "qemu/units.h"
#include "sysemu/blockdev.h"
#include "sysemu/sysemu.h"
#include "sysemu/block-backend.h"
#define NPCM7XX_POWER_ON_STRAPS_DEFAULT ( \
NPCM7XX_PWRON_STRAP_SPI0F18 | \
NPCM7XX_PWRON_STRAP_SFAB | \
NPCM7XX_PWRON_STRAP_BSPA | \
NPCM7XX_PWRON_STRAP_FUP(FUP_NORM_UART2) | \
NPCM7XX_PWRON_STRAP_SECEN | \
NPCM7XX_PWRON_STRAP_HIZ | \
NPCM7XX_PWRON_STRAP_ECC | \
NPCM7XX_PWRON_STRAP_RESERVE1 | \
NPCM7XX_PWRON_STRAP_J2EN | \
NPCM7XX_PWRON_STRAP_CKFRQ(CKFRQ_DEFAULT))
#define NPCM750_EVB_POWER_ON_STRAPS ( \
NPCM7XX_POWER_ON_STRAPS_DEFAULT & ~NPCM7XX_PWRON_STRAP_J2EN)
#define QUANTA_GSJ_POWER_ON_STRAPS NPCM7XX_POWER_ON_STRAPS_DEFAULT
#define QUANTA_GBS_POWER_ON_STRAPS ( \
NPCM7XX_POWER_ON_STRAPS_DEFAULT & ~NPCM7XX_PWRON_STRAP_SFAB)
#define KUDO_BMC_POWER_ON_STRAPS NPCM7XX_POWER_ON_STRAPS_DEFAULT
#define MORI_BMC_POWER_ON_STRAPS NPCM7XX_POWER_ON_STRAPS_DEFAULT
static const char npcm7xx_default_bootrom[] = "npcm7xx_bootrom.bin";
static void npcm7xx_load_bootrom(MachineState *machine, NPCM7xxState *soc)
{
const char *bios_name = machine->firmware ?: npcm7xx_default_bootrom;
g_autofree char *filename = NULL;
int ret;
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (!filename) {
error_report("Could not find ROM image '%s'", bios_name);
if (!machine->kernel_filename) {
/* We can't boot without a bootrom or a kernel image. */
exit(1);
}
return;
}
ret = load_image_mr(filename, &soc->irom);
if (ret < 0) {
error_report("Failed to load ROM image '%s'", filename);
exit(1);
}
}
static void npcm7xx_connect_flash(NPCM7xxFIUState *fiu, int cs_no,
const char *flash_type, DriveInfo *dinfo)
{
DeviceState *flash;
qemu_irq flash_cs;
flash = qdev_new(flash_type);
if (dinfo) {
qdev_prop_set_drive(flash, "drive", blk_by_legacy_dinfo(dinfo));
}
qdev_realize_and_unref(flash, BUS(fiu->spi), &error_fatal);
flash_cs = qdev_get_gpio_in_named(flash, SSI_GPIO_CS, 0);
qdev_connect_gpio_out_named(DEVICE(fiu), "cs", cs_no, flash_cs);
}
static void npcm7xx_connect_dram(NPCM7xxState *soc, MemoryRegion *dram)
{
memory_region_add_subregion(get_system_memory(), NPCM7XX_DRAM_BA, dram);
object_property_set_link(OBJECT(soc), "dram-mr", OBJECT(dram),
&error_abort);
}
static void sdhci_attach_drive(SDHCIState *sdhci, int unit)
{
DriveInfo *di = drive_get(IF_SD, 0, unit);
BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
BusState *bus = qdev_get_child_bus(DEVICE(sdhci), "sd-bus");
if (bus == NULL) {
error_report("No SD bus found in SOC object");
exit(1);
}
DeviceState *carddev = qdev_new(TYPE_SD_CARD);
qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
qdev_realize_and_unref(carddev, bus, &error_fatal);
}
static NPCM7xxState *npcm7xx_create_soc(MachineState *machine,
uint32_t hw_straps)
{
NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_GET_CLASS(machine);
MachineClass *mc = MACHINE_CLASS(nmc);
Object *obj;
if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
error_report("This board can only be used with %s",
mc->default_cpu_type);
exit(1);
}
obj = object_new_with_props(nmc->soc_type, OBJECT(machine), "soc",
&error_abort, NULL);
object_property_set_uint(obj, "power-on-straps", hw_straps, &error_abort);
return NPCM7XX(obj);
}
static I2CBus *npcm7xx_i2c_get_bus(NPCM7xxState *soc, uint32_t num)
{
g_assert(num < ARRAY_SIZE(soc->smbus));
return I2C_BUS(qdev_get_child_bus(DEVICE(&soc->smbus[num]), "i2c-bus"));
}
static void npcm7xx_init_pwm_splitter(NPCM7xxMachine *machine,
NPCM7xxState *soc, const int *fan_counts)
{
SplitIRQ *splitters = machine->fan_splitter;
/*
* PWM 0~3 belong to module 0 output 0~3.
* PWM 4~7 belong to module 1 output 0~3.
*/
for (int i = 0; i < NPCM7XX_NR_PWM_MODULES; ++i) {
for (int j = 0; j < NPCM7XX_PWM_PER_MODULE; ++j) {
int splitter_no = i * NPCM7XX_PWM_PER_MODULE + j;
DeviceState *splitter;
if (fan_counts[splitter_no] < 1) {
continue;
}
object_initialize_child(OBJECT(machine), "fan-splitter[*]",
&splitters[splitter_no], TYPE_SPLIT_IRQ);
splitter = DEVICE(&splitters[splitter_no]);
qdev_prop_set_uint16(splitter, "num-lines",
fan_counts[splitter_no]);
qdev_realize(splitter, NULL, &error_abort);
qdev_connect_gpio_out_named(DEVICE(&soc->pwm[i]), "duty-gpio-out",
j, qdev_get_gpio_in(splitter, 0));
}
}
}
static void npcm7xx_connect_pwm_fan(NPCM7xxState *soc, SplitIRQ *splitter,
int fan_no, int output_no)
{
DeviceState *fan;
int fan_input;
qemu_irq fan_duty_gpio;
g_assert(fan_no >= 0 && fan_no <= NPCM7XX_MFT_MAX_FAN_INPUT);
/*
* Fan 0~1 belong to module 0 input 0~1.
* Fan 2~3 belong to module 1 input 0~1.
* ...
* Fan 14~15 belong to module 7 input 0~1.
* Fan 16~17 belong to module 0 input 2~3.
* Fan 18~19 belong to module 1 input 2~3.
*/
if (fan_no < 16) {
fan = DEVICE(&soc->mft[fan_no / 2]);
fan_input = fan_no % 2;
} else {
fan = DEVICE(&soc->mft[(fan_no - 16) / 2]);
fan_input = fan_no % 2 + 2;
}
/* Connect the Fan to PWM module */
fan_duty_gpio = qdev_get_gpio_in_named(fan, "duty", fan_input);
qdev_connect_gpio_out(DEVICE(splitter), output_no, fan_duty_gpio);
}
static void npcm750_evb_i2c_init(NPCM7xxState *soc)
{
/* lm75 temperature sensor on SVB, tmp105 is compatible */
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 0), "tmp105", 0x48);
/* lm75 temperature sensor on EB, tmp105 is compatible */
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 1), "tmp105", 0x48);
/* tmp100 temperature sensor on EB, tmp105 is compatible */
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 2), "tmp105", 0x48);
/* tmp100 temperature sensor on SVB, tmp105 is compatible */
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 6), "tmp105", 0x48);
}
static void npcm750_evb_fan_init(NPCM7xxMachine *machine, NPCM7xxState *soc)
{
SplitIRQ *splitter = machine->fan_splitter;
static const int fan_counts[] = {2, 2, 2, 2, 2, 2, 2, 2};
npcm7xx_init_pwm_splitter(machine, soc, fan_counts);
npcm7xx_connect_pwm_fan(soc, &splitter[0], 0x00, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[0], 0x01, 1);
npcm7xx_connect_pwm_fan(soc, &splitter[1], 0x02, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[1], 0x03, 1);
npcm7xx_connect_pwm_fan(soc, &splitter[2], 0x04, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[2], 0x05, 1);
npcm7xx_connect_pwm_fan(soc, &splitter[3], 0x06, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[3], 0x07, 1);
npcm7xx_connect_pwm_fan(soc, &splitter[4], 0x08, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[4], 0x09, 1);
npcm7xx_connect_pwm_fan(soc, &splitter[5], 0x0a, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[5], 0x0b, 1);
npcm7xx_connect_pwm_fan(soc, &splitter[6], 0x0c, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[6], 0x0d, 1);
npcm7xx_connect_pwm_fan(soc, &splitter[7], 0x0e, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[7], 0x0f, 1);
}
static void quanta_gsj_i2c_init(NPCM7xxState *soc)
{
/* GSJ machine have 4 max31725 temperature sensors, tmp105 is compatible. */
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 1), "tmp105", 0x5c);
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 2), "tmp105", 0x5c);
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 3), "tmp105", 0x5c);
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 4), "tmp105", 0x5c);
at24c_eeprom_init(npcm7xx_i2c_get_bus(soc, 9), 0x55, 8192);
at24c_eeprom_init(npcm7xx_i2c_get_bus(soc, 10), 0x55, 8192);
/*
* i2c-11:
* - power-brick@36: delta,dps800
* - hotswap@15: ti,lm5066i
*/
/*
* i2c-12:
* - ucd90160@6b
*/
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 15), "pca9548", 0x75);
}
static void quanta_gsj_fan_init(NPCM7xxMachine *machine, NPCM7xxState *soc)
{
SplitIRQ *splitter = machine->fan_splitter;
static const int fan_counts[] = {2, 2, 2, 0, 0, 0, 0, 0};
npcm7xx_init_pwm_splitter(machine, soc, fan_counts);
npcm7xx_connect_pwm_fan(soc, &splitter[0], 0x00, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[0], 0x01, 1);
npcm7xx_connect_pwm_fan(soc, &splitter[1], 0x02, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[1], 0x03, 1);
npcm7xx_connect_pwm_fan(soc, &splitter[2], 0x04, 0);
npcm7xx_connect_pwm_fan(soc, &splitter[2], 0x05, 1);
}
static void quanta_gbs_i2c_init(NPCM7xxState *soc)
{
/*
* i2c-0:
* pca9546@71
*
* i2c-1:
* pca9535@24
* pca9535@20
* pca9535@21
* pca9535@22
* pca9535@23
* pca9535@25
* pca9535@26
*
* i2c-2:
* sbtsi@4c
*
* i2c-5:
* atmel,24c64@50 mb_fru
* pca9546@71
* - channel 0: max31725@54
* - channel 1: max31725@55
* - channel 2: max31725@5d
* atmel,24c64@51 fan_fru
* - channel 3: atmel,24c64@52 hsbp_fru
*
* i2c-6:
* pca9545@73
*
* i2c-7:
* pca9545@72
*
* i2c-8:
* adi,adm1272@10
*
* i2c-9:
* pca9546@71
* - channel 0: isil,isl68137@60
* - channel 1: isil,isl68137@61
* - channel 2: isil,isl68137@63
* - channel 3: isil,isl68137@45
*
* i2c-10:
* pca9545@71
*
* i2c-11:
* pca9545@76
*
* i2c-12:
* maxim,max34451@4e
* isil,isl68137@5d
* isil,isl68137@5e
*
* i2c-14:
* pca9545@70
*/
}
static void kudo_bmc_i2c_init(NPCM7xxState *soc)
{
I2CSlave *i2c_mux;
i2c_mux = i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 1),
TYPE_PCA9548, 0x75);
/* tmp105 is compatible with the lm75 */
i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 4), "tmp105", 0x5c);
i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 5), "tmp105", 0x5c);
i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 6), "tmp105", 0x5c);
i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 7), "tmp105", 0x5c);
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 1), TYPE_PCA9548, 0x77);
i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 4), TYPE_PCA9548, 0x77);
at24c_eeprom_init(npcm7xx_i2c_get_bus(soc, 4), 0x50, 8192); /* mbfru */
i2c_mux = i2c_slave_create_simple(npcm7xx_i2c_get_bus(soc, 13),
TYPE_PCA9548, 0x77);
/* tmp105 is compatible with the lm75 */
i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 2), "tmp105", 0x48);
i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 3), "tmp105", 0x49);
i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 4), "tmp105", 0x48);
i2c_slave_create_simple(pca954x_i2c_get_bus(i2c_mux, 5), "tmp105", 0x49);
at24c_eeprom_init(npcm7xx_i2c_get_bus(soc, 14), 0x55, 8192); /* bmcfru */
/* TODO: Add remaining i2c devices. */
}
static void npcm750_evb_init(MachineState *machine)
{
NPCM7xxState *soc;
soc = npcm7xx_create_soc(machine, NPCM750_EVB_POWER_ON_STRAPS);
npcm7xx_connect_dram(soc, machine->ram);
qdev_realize(DEVICE(soc), NULL, &error_fatal);
npcm7xx_load_bootrom(machine, soc);
npcm7xx_connect_flash(&soc->fiu[0], 0, "w25q256", drive_get(IF_MTD, 0, 0));
npcm750_evb_i2c_init(soc);
npcm750_evb_fan_init(NPCM7XX_MACHINE(machine), soc);
npcm7xx_load_kernel(machine, soc);
}
static void quanta_gsj_init(MachineState *machine)
{
NPCM7xxState *soc;
soc = npcm7xx_create_soc(machine, QUANTA_GSJ_POWER_ON_STRAPS);
npcm7xx_connect_dram(soc, machine->ram);
qdev_realize(DEVICE(soc), NULL, &error_fatal);
npcm7xx_load_bootrom(machine, soc);
npcm7xx_connect_flash(&soc->fiu[0], 0, "mx25l25635e",
drive_get(IF_MTD, 0, 0));
quanta_gsj_i2c_init(soc);
quanta_gsj_fan_init(NPCM7XX_MACHINE(machine), soc);
npcm7xx_load_kernel(machine, soc);
}
static void quanta_gbs_init(MachineState *machine)
{
NPCM7xxState *soc;
soc = npcm7xx_create_soc(machine, QUANTA_GBS_POWER_ON_STRAPS);
npcm7xx_connect_dram(soc, machine->ram);
qdev_realize(DEVICE(soc), NULL, &error_fatal);
npcm7xx_load_bootrom(machine, soc);
npcm7xx_connect_flash(&soc->fiu[0], 0, "mx66u51235f",
drive_get(IF_MTD, 0, 0));
quanta_gbs_i2c_init(soc);
sdhci_attach_drive(&soc->mmc.sdhci, 0);
npcm7xx_load_kernel(machine, soc);
}
static void kudo_bmc_init(MachineState *machine)
{
NPCM7xxState *soc;
soc = npcm7xx_create_soc(machine, KUDO_BMC_POWER_ON_STRAPS);
npcm7xx_connect_dram(soc, machine->ram);
qdev_realize(DEVICE(soc), NULL, &error_fatal);
npcm7xx_load_bootrom(machine, soc);
npcm7xx_connect_flash(&soc->fiu[0], 0, "mx66u51235f",
drive_get(IF_MTD, 0, 0));
npcm7xx_connect_flash(&soc->fiu[1], 0, "mx66u51235f",
drive_get(IF_MTD, 3, 0));
kudo_bmc_i2c_init(soc);
sdhci_attach_drive(&soc->mmc.sdhci, 0);
npcm7xx_load_kernel(machine, soc);
}
static void mori_bmc_init(MachineState *machine)
{
NPCM7xxState *soc;
soc = npcm7xx_create_soc(machine, MORI_BMC_POWER_ON_STRAPS);
npcm7xx_connect_dram(soc, machine->ram);
qdev_realize(DEVICE(soc), NULL, &error_fatal);
npcm7xx_load_bootrom(machine, soc);
npcm7xx_connect_flash(&soc->fiu[1], 0, "mx66u51235f",
drive_get(IF_MTD, 3, 0));
npcm7xx_load_kernel(machine, soc);
}
static void npcm7xx_set_soc_type(NPCM7xxMachineClass *nmc, const char *type)
{
NPCM7xxClass *sc = NPCM7XX_CLASS(object_class_by_name(type));
MachineClass *mc = MACHINE_CLASS(nmc);
nmc->soc_type = type;
mc->default_cpus = mc->min_cpus = mc->max_cpus = sc->num_cpus;
}
static void npcm7xx_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->no_floppy = 1;
mc->no_cdrom = 1;
mc->no_parallel = 1;
mc->default_ram_id = "ram";
mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
}
/*
* Schematics:
* https://github.com/Nuvoton-Israel/nuvoton-info/blob/master/npcm7xx-poleg/evaluation-board/board_deliverables/NPCM750x_EB_ver.A1.1_COMPLETE.pdf
*/
static void npcm750_evb_machine_class_init(ObjectClass *oc, void *data)
{
NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_CLASS(oc);
MachineClass *mc = MACHINE_CLASS(oc);
npcm7xx_set_soc_type(nmc, TYPE_NPCM750);
mc->desc = "Nuvoton NPCM750 Evaluation Board (Cortex-A9)";
mc->init = npcm750_evb_init;
mc->default_ram_size = 512 * MiB;
};
static void gsj_machine_class_init(ObjectClass *oc, void *data)
{
NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_CLASS(oc);
MachineClass *mc = MACHINE_CLASS(oc);
npcm7xx_set_soc_type(nmc, TYPE_NPCM730);
mc->desc = "Quanta GSJ (Cortex-A9)";
mc->init = quanta_gsj_init;
mc->default_ram_size = 512 * MiB;
};
static void gbs_bmc_machine_class_init(ObjectClass *oc, void *data)
{
NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_CLASS(oc);
MachineClass *mc = MACHINE_CLASS(oc);
npcm7xx_set_soc_type(nmc, TYPE_NPCM730);
mc->desc = "Quanta GBS (Cortex-A9)";
mc->init = quanta_gbs_init;
mc->default_ram_size = 1 * GiB;
}
static void kudo_bmc_machine_class_init(ObjectClass *oc, void *data)
{
NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_CLASS(oc);
MachineClass *mc = MACHINE_CLASS(oc);
npcm7xx_set_soc_type(nmc, TYPE_NPCM730);
mc->desc = "Kudo BMC (Cortex-A9)";
mc->init = kudo_bmc_init;
mc->default_ram_size = 1 * GiB;
};
static void mori_bmc_machine_class_init(ObjectClass *oc, void *data)
{
NPCM7xxMachineClass *nmc = NPCM7XX_MACHINE_CLASS(oc);
MachineClass *mc = MACHINE_CLASS(oc);
npcm7xx_set_soc_type(nmc, TYPE_NPCM730);
mc->desc = "Mori BMC (Cortex-A9)";
mc->init = mori_bmc_init;
mc->default_ram_size = 1 * GiB;
}
static const TypeInfo npcm7xx_machine_types[] = {
{
.name = TYPE_NPCM7XX_MACHINE,
.parent = TYPE_MACHINE,
.instance_size = sizeof(NPCM7xxMachine),
.class_size = sizeof(NPCM7xxMachineClass),
.class_init = npcm7xx_machine_class_init,
.abstract = true,
}, {
.name = MACHINE_TYPE_NAME("npcm750-evb"),
.parent = TYPE_NPCM7XX_MACHINE,
.class_init = npcm750_evb_machine_class_init,
}, {
.name = MACHINE_TYPE_NAME("quanta-gsj"),
.parent = TYPE_NPCM7XX_MACHINE,
.class_init = gsj_machine_class_init,
}, {
.name = MACHINE_TYPE_NAME("quanta-gbs-bmc"),
.parent = TYPE_NPCM7XX_MACHINE,
.class_init = gbs_bmc_machine_class_init,
}, {
.name = MACHINE_TYPE_NAME("kudo-bmc"),
.parent = TYPE_NPCM7XX_MACHINE,
.class_init = kudo_bmc_machine_class_init,
}, {
.name = MACHINE_TYPE_NAME("mori-bmc"),
.parent = TYPE_NPCM7XX_MACHINE,
.class_init = mori_bmc_machine_class_init,
},
};
DEFINE_TYPES(npcm7xx_machine_types)
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