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qemu-patch-raspberry4/hw/arm/aspeed_ast2600.c
Joel Stanley a4ea92013d arm/ast2600: Fix SMP booting with -kernel 
The ast2600 machines do not have PSCI firmware, so this property should
have never been set. Removing this node fixes SMP booting Linux kernels
that have PSCI enabled, as Linux fails to find PSCI in the device tree
and falls back to the soc-specific method for enabling secondary CPUs.

The comment is out of date as Qemu has supported -kernel booting since
9bb6d14081 ("aspeed: Add boot stub for smp booting"), in v5.1.

Fixes: f25c0ae107 ("aspeed/soc: Add AST2600 support")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210303010505.635621-1-joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2021-03-09 12:01:27 +01:00

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/*
* ASPEED SoC 2600 family
*
* Copyright (c) 2016-2019, IBM Corporation.
*
* This code is licensed under the GPL version 2 or later. See
* the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "cpu.h"
#include "exec/address-spaces.h"
#include "hw/misc/unimp.h"
#include "hw/arm/aspeed_soc.h"
#include "hw/char/serial.h"
#include "qemu/log.h"
#include "qemu/module.h"
#include "qemu/error-report.h"
#include "hw/i2c/aspeed_i2c.h"
#include "net/net.h"
#include "sysemu/sysemu.h"
#define ASPEED_SOC_IOMEM_SIZE 0x00200000
static const hwaddr aspeed_soc_ast2600_memmap[] = {
[ASPEED_DEV_SRAM] = 0x10000000,
/* 0x16000000 0x17FFFFFF : AHB BUS do LPC Bus bridge */
[ASPEED_DEV_IOMEM] = 0x1E600000,
[ASPEED_DEV_PWM] = 0x1E610000,
[ASPEED_DEV_FMC] = 0x1E620000,
[ASPEED_DEV_SPI1] = 0x1E630000,
[ASPEED_DEV_SPI2] = 0x1E641000,
[ASPEED_DEV_EHCI1] = 0x1E6A1000,
[ASPEED_DEV_EHCI2] = 0x1E6A3000,
[ASPEED_DEV_MII1] = 0x1E650000,
[ASPEED_DEV_MII2] = 0x1E650008,
[ASPEED_DEV_MII3] = 0x1E650010,
[ASPEED_DEV_MII4] = 0x1E650018,
[ASPEED_DEV_ETH1] = 0x1E660000,
[ASPEED_DEV_ETH3] = 0x1E670000,
[ASPEED_DEV_ETH2] = 0x1E680000,
[ASPEED_DEV_ETH4] = 0x1E690000,
[ASPEED_DEV_VIC] = 0x1E6C0000,
[ASPEED_DEV_SDMC] = 0x1E6E0000,
[ASPEED_DEV_SCU] = 0x1E6E2000,
[ASPEED_DEV_XDMA] = 0x1E6E7000,
[ASPEED_DEV_ADC] = 0x1E6E9000,
[ASPEED_DEV_VIDEO] = 0x1E700000,
[ASPEED_DEV_SDHCI] = 0x1E740000,
[ASPEED_DEV_EMMC] = 0x1E750000,
[ASPEED_DEV_GPIO] = 0x1E780000,
[ASPEED_DEV_GPIO_1_8V] = 0x1E780800,
[ASPEED_DEV_RTC] = 0x1E781000,
[ASPEED_DEV_TIMER1] = 0x1E782000,
[ASPEED_DEV_WDT] = 0x1E785000,
[ASPEED_DEV_LPC] = 0x1E789000,
[ASPEED_DEV_IBT] = 0x1E789140,
[ASPEED_DEV_I2C] = 0x1E78A000,
[ASPEED_DEV_UART1] = 0x1E783000,
[ASPEED_DEV_UART5] = 0x1E784000,
[ASPEED_DEV_VUART] = 0x1E787000,
[ASPEED_DEV_SDRAM] = 0x80000000,
};
#define ASPEED_A7MPCORE_ADDR 0x40460000
#define ASPEED_SOC_AST2600_MAX_IRQ 128
/* Shared Peripheral Interrupt values below are offset by -32 from datasheet */
static const int aspeed_soc_ast2600_irqmap[] = {
[ASPEED_DEV_UART1] = 47,
[ASPEED_DEV_UART2] = 48,
[ASPEED_DEV_UART3] = 49,
[ASPEED_DEV_UART4] = 50,
[ASPEED_DEV_UART5] = 8,
[ASPEED_DEV_VUART] = 8,
[ASPEED_DEV_FMC] = 39,
[ASPEED_DEV_SDMC] = 0,
[ASPEED_DEV_SCU] = 12,
[ASPEED_DEV_ADC] = 78,
[ASPEED_DEV_XDMA] = 6,
[ASPEED_DEV_SDHCI] = 43,
[ASPEED_DEV_EHCI1] = 5,
[ASPEED_DEV_EHCI2] = 9,
[ASPEED_DEV_EMMC] = 15,
[ASPEED_DEV_GPIO] = 40,
[ASPEED_DEV_GPIO_1_8V] = 11,
[ASPEED_DEV_RTC] = 13,
[ASPEED_DEV_TIMER1] = 16,
[ASPEED_DEV_TIMER2] = 17,
[ASPEED_DEV_TIMER3] = 18,
[ASPEED_DEV_TIMER4] = 19,
[ASPEED_DEV_TIMER5] = 20,
[ASPEED_DEV_TIMER6] = 21,
[ASPEED_DEV_TIMER7] = 22,
[ASPEED_DEV_TIMER8] = 23,
[ASPEED_DEV_WDT] = 24,
[ASPEED_DEV_PWM] = 44,
[ASPEED_DEV_LPC] = 35,
[ASPEED_DEV_IBT] = 35, /* LPC */
[ASPEED_DEV_I2C] = 110, /* 110 -> 125 */
[ASPEED_DEV_ETH1] = 2,
[ASPEED_DEV_ETH2] = 3,
[ASPEED_DEV_ETH3] = 32,
[ASPEED_DEV_ETH4] = 33,
};
static qemu_irq aspeed_soc_get_irq(AspeedSoCState *s, int ctrl)
{
AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
return qdev_get_gpio_in(DEVICE(&s->a7mpcore), sc->irqmap[ctrl]);
}
static void aspeed_soc_ast2600_init(Object *obj)
{
AspeedSoCState *s = ASPEED_SOC(obj);
AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
int i;
char socname[8];
char typename[64];
if (sscanf(sc->name, "%7s", socname) != 1) {
g_assert_not_reached();
}
for (i = 0; i < sc->num_cpus; i++) {
object_initialize_child(obj, "cpu[*]", &s->cpu[i], sc->cpu_type);
}
snprintf(typename, sizeof(typename), "aspeed.scu-%s", socname);
object_initialize_child(obj, "scu", &s->scu, typename);
qdev_prop_set_uint32(DEVICE(&s->scu), "silicon-rev",
sc->silicon_rev);
object_property_add_alias(obj, "hw-strap1", OBJECT(&s->scu),
"hw-strap1");
object_property_add_alias(obj, "hw-strap2", OBJECT(&s->scu),
"hw-strap2");
object_property_add_alias(obj, "hw-prot-key", OBJECT(&s->scu),
"hw-prot-key");
object_initialize_child(obj, "a7mpcore", &s->a7mpcore,
TYPE_A15MPCORE_PRIV);
object_initialize_child(obj, "rtc", &s->rtc, TYPE_ASPEED_RTC);
snprintf(typename, sizeof(typename), "aspeed.timer-%s", socname);
object_initialize_child(obj, "timerctrl", &s->timerctrl, typename);
snprintf(typename, sizeof(typename), "aspeed.i2c-%s", socname);
object_initialize_child(obj, "i2c", &s->i2c, typename);
snprintf(typename, sizeof(typename), "aspeed.fmc-%s", socname);
object_initialize_child(obj, "fmc", &s->fmc, typename);
object_property_add_alias(obj, "num-cs", OBJECT(&s->fmc), "num-cs");
for (i = 0; i < sc->spis_num; i++) {
snprintf(typename, sizeof(typename), "aspeed.spi%d-%s", i + 1, socname);
object_initialize_child(obj, "spi[*]", &s->spi[i], typename);
}
for (i = 0; i < sc->ehcis_num; i++) {
object_initialize_child(obj, "ehci[*]", &s->ehci[i],
TYPE_PLATFORM_EHCI);
}
snprintf(typename, sizeof(typename), "aspeed.sdmc-%s", socname);
object_initialize_child(obj, "sdmc", &s->sdmc, typename);
object_property_add_alias(obj, "ram-size", OBJECT(&s->sdmc),
"ram-size");
object_property_add_alias(obj, "max-ram-size", OBJECT(&s->sdmc),
"max-ram-size");
for (i = 0; i < sc->wdts_num; i++) {
snprintf(typename, sizeof(typename), "aspeed.wdt-%s", socname);
object_initialize_child(obj, "wdt[*]", &s->wdt[i], typename);
}
for (i = 0; i < sc->macs_num; i++) {
object_initialize_child(obj, "ftgmac100[*]", &s->ftgmac100[i],
TYPE_FTGMAC100);
object_initialize_child(obj, "mii[*]", &s->mii[i], TYPE_ASPEED_MII);
}
object_initialize_child(obj, "xdma", &s->xdma, TYPE_ASPEED_XDMA);
snprintf(typename, sizeof(typename), "aspeed.gpio-%s", socname);
object_initialize_child(obj, "gpio", &s->gpio, typename);
snprintf(typename, sizeof(typename), "aspeed.gpio-%s-1_8v", socname);
object_initialize_child(obj, "gpio_1_8v", &s->gpio_1_8v, typename);
object_initialize_child(obj, "sd-controller", &s->sdhci,
TYPE_ASPEED_SDHCI);
object_property_set_int(OBJECT(&s->sdhci), "num-slots", 2, &error_abort);
/* Init sd card slot class here so that they're under the correct parent */
for (i = 0; i < ASPEED_SDHCI_NUM_SLOTS; ++i) {
object_initialize_child(obj, "sd-controller.sdhci[*]",
&s->sdhci.slots[i], TYPE_SYSBUS_SDHCI);
}
object_initialize_child(obj, "emmc-controller", &s->emmc,
TYPE_ASPEED_SDHCI);
object_property_set_int(OBJECT(&s->emmc), "num-slots", 1, &error_abort);
object_initialize_child(obj, "emmc-controller.sdhci", &s->emmc.slots[0],
TYPE_SYSBUS_SDHCI);
}
/*
* ASPEED ast2600 has 0xf as cluster ID
*
* https://developer.arm.com/documentation/ddi0388/e/the-system-control-coprocessors/summary-of-system-control-coprocessor-registers/multiprocessor-affinity-register
*/
static uint64_t aspeed_calc_affinity(int cpu)
{
return (0xf << ARM_AFF1_SHIFT) | cpu;
}
static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp)
{
int i;
AspeedSoCState *s = ASPEED_SOC(dev);
AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s);
Error *err = NULL;
qemu_irq irq;
/* IO space */
create_unimplemented_device("aspeed_soc.io", sc->memmap[ASPEED_DEV_IOMEM],
ASPEED_SOC_IOMEM_SIZE);
/* Video engine stub */
create_unimplemented_device("aspeed.video", sc->memmap[ASPEED_DEV_VIDEO],
0x1000);
/* CPU */
for (i = 0; i < sc->num_cpus; i++) {
if (sc->num_cpus > 1) {
object_property_set_int(OBJECT(&s->cpu[i]), "reset-cbar",
ASPEED_A7MPCORE_ADDR, &error_abort);
}
object_property_set_int(OBJECT(&s->cpu[i]), "mp-affinity",
aspeed_calc_affinity(i), &error_abort);
object_property_set_int(OBJECT(&s->cpu[i]), "cntfrq", 1125000000,
&error_abort);
if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) {
return;
}
}
/* A7MPCORE */
object_property_set_int(OBJECT(&s->a7mpcore), "num-cpu", sc->num_cpus,
&error_abort);
object_property_set_int(OBJECT(&s->a7mpcore), "num-irq",
ASPEED_SOC_AST2600_MAX_IRQ + GIC_INTERNAL,
&error_abort);
sysbus_realize(SYS_BUS_DEVICE(&s->a7mpcore), &error_abort);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->a7mpcore), 0, ASPEED_A7MPCORE_ADDR);
for (i = 0; i < sc->num_cpus; i++) {
SysBusDevice *sbd = SYS_BUS_DEVICE(&s->a7mpcore);
DeviceState *d = DEVICE(qemu_get_cpu(i));
irq = qdev_get_gpio_in(d, ARM_CPU_IRQ);
sysbus_connect_irq(sbd, i, irq);
irq = qdev_get_gpio_in(d, ARM_CPU_FIQ);
sysbus_connect_irq(sbd, i + sc->num_cpus, irq);
irq = qdev_get_gpio_in(d, ARM_CPU_VIRQ);
sysbus_connect_irq(sbd, i + 2 * sc->num_cpus, irq);
irq = qdev_get_gpio_in(d, ARM_CPU_VFIQ);
sysbus_connect_irq(sbd, i + 3 * sc->num_cpus, irq);
}
/* SRAM */
memory_region_init_ram(&s->sram, OBJECT(dev), "aspeed.sram",
sc->sram_size, &err);
if (err) {
error_propagate(errp, err);
return;
}
memory_region_add_subregion(get_system_memory(),
sc->memmap[ASPEED_DEV_SRAM], &s->sram);
/* SCU */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->scu), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->scu), 0, sc->memmap[ASPEED_DEV_SCU]);
/* RTC */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->rtc), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->rtc), 0, sc->memmap[ASPEED_DEV_RTC]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->rtc), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_RTC));
/* Timer */
object_property_set_link(OBJECT(&s->timerctrl), "scu", OBJECT(&s->scu),
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->timerctrl), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->timerctrl), 0,
sc->memmap[ASPEED_DEV_TIMER1]);
for (i = 0; i < ASPEED_TIMER_NR_TIMERS; i++) {
qemu_irq irq = aspeed_soc_get_irq(s, ASPEED_DEV_TIMER1 + i);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->timerctrl), i, irq);
}
/* UART - attach an 8250 to the IO space as our UART5 */
serial_mm_init(get_system_memory(), sc->memmap[ASPEED_DEV_UART5], 2,
aspeed_soc_get_irq(s, ASPEED_DEV_UART5),
38400, serial_hd(0), DEVICE_LITTLE_ENDIAN);
/* I2C */
object_property_set_link(OBJECT(&s->i2c), "dram", OBJECT(s->dram_mr),
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->i2c), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c), 0, sc->memmap[ASPEED_DEV_I2C]);
for (i = 0; i < ASPEED_I2C_GET_CLASS(&s->i2c)->num_busses; i++) {
qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->a7mpcore),
sc->irqmap[ASPEED_DEV_I2C] + i);
/*
* The AST2600 SoC has one IRQ per I2C bus. Skip the common
* IRQ (AST2400 and AST2500) and connect all bussses.
*/
sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c), i + 1, irq);
}
/* FMC, The number of CS is set at the board level */
object_property_set_link(OBJECT(&s->fmc), "dram", OBJECT(s->dram_mr),
&error_abort);
if (!object_property_set_int(OBJECT(&s->fmc), "sdram-base",
sc->memmap[ASPEED_DEV_SDRAM], errp)) {
return;
}
if (!sysbus_realize(SYS_BUS_DEVICE(&s->fmc), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->fmc), 0, sc->memmap[ASPEED_DEV_FMC]);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->fmc), 1,
s->fmc.ctrl->flash_window_base);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->fmc), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_FMC));
/* SPI */
for (i = 0; i < sc->spis_num; i++) {
object_property_set_link(OBJECT(&s->spi[i]), "dram",
OBJECT(s->dram_mr), &error_abort);
object_property_set_int(OBJECT(&s->spi[i]), "num-cs", 1, &error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 0,
sc->memmap[ASPEED_DEV_SPI1 + i]);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 1,
s->spi[i].ctrl->flash_window_base);
}
/* EHCI */
for (i = 0; i < sc->ehcis_num; i++) {
if (!sysbus_realize(SYS_BUS_DEVICE(&s->ehci[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci[i]), 0,
sc->memmap[ASPEED_DEV_EHCI1 + i]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci[i]), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_EHCI1 + i));
}
/* SDMC - SDRAM Memory Controller */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->sdmc), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdmc), 0, sc->memmap[ASPEED_DEV_SDMC]);
/* Watch dog */
for (i = 0; i < sc->wdts_num; i++) {
AspeedWDTClass *awc = ASPEED_WDT_GET_CLASS(&s->wdt[i]);
object_property_set_link(OBJECT(&s->wdt[i]), "scu", OBJECT(&s->scu),
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->wdt[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt[i]), 0,
sc->memmap[ASPEED_DEV_WDT] + i * awc->offset);
}
/* Net */
for (i = 0; i < sc->macs_num; i++) {
object_property_set_bool(OBJECT(&s->ftgmac100[i]), "aspeed", true,
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->ftgmac100[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->ftgmac100[i]), 0,
sc->memmap[ASPEED_DEV_ETH1 + i]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->ftgmac100[i]), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_ETH1 + i));
object_property_set_link(OBJECT(&s->mii[i]), "nic",
OBJECT(&s->ftgmac100[i]), &error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->mii[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->mii[i]), 0,
sc->memmap[ASPEED_DEV_MII1 + i]);
}
/* XDMA */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->xdma), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->xdma), 0,
sc->memmap[ASPEED_DEV_XDMA]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->xdma), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_XDMA));
/* GPIO */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio), 0, sc->memmap[ASPEED_DEV_GPIO]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_GPIO));
if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio_1_8v), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio_1_8v), 0,
sc->memmap[ASPEED_DEV_GPIO_1_8V]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio_1_8v), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_GPIO_1_8V));
/* SDHCI */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->sdhci), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdhci), 0,
sc->memmap[ASPEED_DEV_SDHCI]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdhci), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_SDHCI));
/* eMMC */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->emmc), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->emmc), 0, sc->memmap[ASPEED_DEV_EMMC]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->emmc), 0,
aspeed_soc_get_irq(s, ASPEED_DEV_EMMC));
}
static void aspeed_soc_ast2600_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
AspeedSoCClass *sc = ASPEED_SOC_CLASS(oc);
dc->realize = aspeed_soc_ast2600_realize;
sc->name = "ast2600-a1";
sc->cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
sc->silicon_rev = AST2600_A1_SILICON_REV;
sc->sram_size = 0x16400;
sc->spis_num = 2;
sc->ehcis_num = 2;
sc->wdts_num = 4;
sc->macs_num = 4;
sc->irqmap = aspeed_soc_ast2600_irqmap;
sc->memmap = aspeed_soc_ast2600_memmap;
sc->num_cpus = 2;
}
static const TypeInfo aspeed_soc_ast2600_type_info = {
.name = "ast2600-a1",
.parent = TYPE_ASPEED_SOC,
.instance_size = sizeof(AspeedSoCState),
.instance_init = aspeed_soc_ast2600_init,
.class_init = aspeed_soc_ast2600_class_init,
.class_size = sizeof(AspeedSoCClass),
};
static void aspeed_soc_register_types(void)
{
type_register_static(&aspeed_soc_ast2600_type_info);
};
type_init(aspeed_soc_register_types)
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