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hw/arm: Introduce Raspberry PI 4 machine

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Signed-off-by: Sergey Kambalin <sergey.kambalin@auriga.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240226000259.2752893-11-sergey.kambalin@auriga.com
[PMM: Change name to 'raspi4b', not 'raspi4b-2g']
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Sergey Kambalin 2024-02-25 18:02:28 -06:00 committed by Peter Maydell
parent 1367375612
commit 7785e8ea22
8 changed files with 119 additions and 14 deletions
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17
hw/arm/bcm2835_peripherals.c
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@ -108,6 +108,7 @@ static void raspi_peripherals_base_init(Object *obj)
/* Framebuffer */
object_initialize_child(obj, "fb", &s->fb, TYPE_BCM2835_FB);
object_property_add_alias(obj, "vcram-size", OBJECT(&s->fb), "vcram-size");
object_property_add_alias(obj, "vcram-base", OBJECT(&s->fb), "vcram-base");
object_property_add_const_link(OBJECT(&s->fb), "dma-mr",
OBJECT(&s->gpu_bus_mr));
@ -229,7 +230,7 @@ void bcm_soc_peripherals_common_realize(DeviceState *dev, Error **errp)
Object *obj;
MemoryRegion *ram;
Error *err = NULL;
uint64_t ram_size, vcram_size;
uint64_t ram_size, vcram_size, vcram_base;
int n;
obj = object_property_get_link(OBJECT(dev), "ram", &error_abort);
@ -333,11 +334,21 @@ void bcm_soc_peripherals_common_realize(DeviceState *dev, Error **errp)
return;
}
if (!object_property_set_uint(OBJECT(&s->fb), "vcram-base",
ram_size - vcram_size, errp)) {
vcram_base = object_property_get_uint(OBJECT(s), "vcram-base", &err);
if (err) {
error_propagate(errp, err);
return;
}
if (vcram_base == 0) {
vcram_base = ram_size - vcram_size;
}
vcram_base = MIN(vcram_base, UPPER_RAM_BASE - vcram_size);
if (!object_property_set_uint(OBJECT(&s->fb), "vcram-base", vcram_base,
errp)) {
return;
}
if (!sysbus_realize(SYS_BUS_DEVICE(&s->fb), errp)) {
return;
}

2
hw/arm/bcm2836.c
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@ -66,6 +66,8 @@ static void bcm283x_init(Object *obj)
"command-line");
object_property_add_alias(obj, "vcram-size", OBJECT(&s->peripherals),
"vcram-size");
object_property_add_alias(obj, "vcram-base", OBJECT(&s->peripherals),
"vcram-base");
}
bool bcm283x_common_realize(DeviceState *dev, BCMSocPeripheralBaseState *ps,

2
hw/arm/bcm2838.c
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@ -54,6 +54,8 @@ static void bcm2838_init(Object *obj)
"board-rev");
object_property_add_alias(obj, "vcram-size", OBJECT(&s->peripherals),
"vcram-size");
object_property_add_alias(obj, "vcram-base", OBJECT(&s->peripherals),
"vcram-base");
object_property_add_alias(obj, "command-line", OBJECT(&s->peripherals),
"command-line");

2
hw/arm/meson.build
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@ -30,7 +30,7 @@ arm_ss.add(when: 'CONFIG_ALLWINNER_A10', if_true: files('allwinner-a10.c', 'cubi
arm_ss.add(when: 'CONFIG_ALLWINNER_H3', if_true: files('allwinner-h3.c', 'orangepi.c'))
arm_ss.add(when: 'CONFIG_ALLWINNER_R40', if_true: files('allwinner-r40.c', 'bananapi_m2u.c'))
arm_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2836.c', 'raspi.c'))
arm_ss.add(when: ['CONFIG_RASPI', 'TARGET_AARCH64'], if_true: files('bcm2838.c'))
arm_ss.add(when: ['CONFIG_RASPI', 'TARGET_AARCH64'], if_true: files('bcm2838.c', 'raspi4b.c'))
arm_ss.add(when: 'CONFIG_STM32F100_SOC', if_true: files('stm32f100_soc.c'))
arm_ss.add(when: 'CONFIG_STM32F205_SOC', if_true: files('stm32f205_soc.c'))
arm_ss.add(when: 'CONFIG_STM32F405_SOC', if_true: files('stm32f405_soc.c'))

27
hw/arm/raspi.c
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@ -18,6 +18,7 @@
#include "qapi/error.h"
#include "hw/arm/boot.h"
#include "hw/arm/bcm2836.h"
#include "hw/arm/bcm2838.h"
#include "hw/arm/raspi_platform.h"
#include "hw/registerfields.h"
#include "qemu/error-report.h"
@ -61,6 +62,7 @@ typedef enum RaspiProcessorId {
PROCESSOR_ID_BCM2835 = 0,
PROCESSOR_ID_BCM2836 = 1,
PROCESSOR_ID_BCM2837 = 2,
PROCESSOR_ID_BCM2838 = 3,
} RaspiProcessorId;
static const struct {
@ -70,13 +72,9 @@ static const struct {
[PROCESSOR_ID_BCM2835] = {TYPE_BCM2835, 1},
[PROCESSOR_ID_BCM2836] = {TYPE_BCM2836, BCM283X_NCPUS},
[PROCESSOR_ID_BCM2837] = {TYPE_BCM2837, BCM283X_NCPUS},
[PROCESSOR_ID_BCM2838] = {TYPE_BCM2838, BCM283X_NCPUS},
};
static void raspi_base_machine_init(MachineState *machine,
BCM283XBaseState *soc);
static void raspi_machine_class_common_init(MachineClass *mc,
uint32_t board_rev);
static uint64_t board_ram_size(uint32_t board_rev)
{
assert(FIELD_EX32(board_rev, REV_CODE, STYLE)); /* Only new style */
@ -93,7 +91,7 @@ static RaspiProcessorId board_processor_id(uint32_t board_rev)
return proc_id;
}
static const char *board_soc_type(uint32_t board_rev)
const char *board_soc_type(uint32_t board_rev)
{
return soc_property[board_processor_id(board_rev)].type;
}
@ -248,13 +246,14 @@ static void setup_boot(MachineState *machine, ARMCPU *cpu,
arm_load_kernel(cpu, machine, &s->binfo);
}
static void raspi_base_machine_init(MachineState *machine,
void raspi_base_machine_init(MachineState *machine,
BCM283XBaseState *soc)
{
RaspiBaseMachineClass *mc = RASPI_BASE_MACHINE_GET_CLASS(machine);
uint32_t board_rev = mc->board_rev;
uint64_t ram_size = board_ram_size(board_rev);
uint32_t vcram_size;
uint32_t vcram_base, vcram_size;
size_t boot_ram_size;
DriveInfo *di;
BlockBackend *blk;
BusState *bus;
@ -293,11 +292,19 @@ static void raspi_base_machine_init(MachineState *machine,
vcram_size = object_property_get_uint(OBJECT(soc), "vcram-size",
&error_abort);
vcram_base = object_property_get_uint(OBJECT(soc), "vcram-base",
&error_abort);
if (vcram_base == 0) {
vcram_base = ram_size - vcram_size;
}
boot_ram_size = MIN(vcram_base, UPPER_RAM_BASE - vcram_size);
setup_boot(machine, &soc->cpu[0].core, board_processor_id(board_rev),
machine->ram_size - vcram_size);
boot_ram_size);
}
static void raspi_machine_init(MachineState *machine)
void raspi_machine_init(MachineState *machine)
{
RaspiMachineState *s = RASPI_MACHINE(machine);
RaspiBaseMachineState *s_base = RASPI_BASE_MACHINE(machine);

70
hw/arm/raspi4b.c Normal file
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@ -0,0 +1,70 @@
/*
* Raspberry Pi 4B emulation
*
* Copyright (C) 2022 Ovchinnikov Vitalii <vitalii.ovchinnikov@auriga.com>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qemu/cutils.h"
#include "qapi/error.h"
#include "qapi/visitor.h"
#include "hw/arm/raspi_platform.h"
#include "hw/display/bcm2835_fb.h"
#include "hw/registerfields.h"
#include "qemu/error-report.h"
#include "sysemu/device_tree.h"
#include "hw/boards.h"
#include "hw/loader.h"
#include "hw/arm/boot.h"
#include "qom/object.h"
#include "hw/arm/bcm2838.h"
#define TYPE_RASPI4B_MACHINE MACHINE_TYPE_NAME("raspi4b")
OBJECT_DECLARE_SIMPLE_TYPE(Raspi4bMachineState, RASPI4B_MACHINE)
struct Raspi4bMachineState {
RaspiBaseMachineState parent_obj;
BCM2838State soc;
};
static void raspi4b_machine_init(MachineState *machine)
{
Raspi4bMachineState *s = RASPI4B_MACHINE(machine);
RaspiBaseMachineState *s_base = RASPI_BASE_MACHINE(machine);
RaspiBaseMachineClass *mc = RASPI_BASE_MACHINE_GET_CLASS(machine);
BCM2838State *soc = &s->soc;
s_base->binfo.board_id = mc->board_rev;
object_initialize_child(OBJECT(machine), "soc", soc,
board_soc_type(mc->board_rev));
raspi_base_machine_init(machine, &soc->parent_obj);
}
static void raspi4b_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
RaspiBaseMachineClass *rmc = RASPI_BASE_MACHINE_CLASS(oc);
rmc->board_rev = 0xb03115; /* Revision 1.5, 2 Gb RAM */
raspi_machine_class_common_init(mc, rmc->board_rev);
mc->init = raspi4b_machine_init;
}
static const TypeInfo raspi4b_machine_type = {
.name = TYPE_RASPI4B_MACHINE,
.parent = TYPE_RASPI_BASE_MACHINE,
.instance_size = sizeof(Raspi4bMachineState),
.class_init = raspi4b_machine_class_init,
};
static void raspi4b_machine_register_type(void)
{
type_register_static(&raspi4b_machine_type);
}
type_init(raspi4b_machine_register_type)

11
include/hw/arm/raspi_platform.h
View File

@ -49,6 +49,17 @@ struct RaspiBaseMachineClass {
uint32_t board_rev;
};
/* Common functions for raspberry pi machines */
const char *board_soc_type(uint32_t board_rev);
void raspi_machine_init(MachineState *machine);
typedef struct BCM283XBaseState BCM283XBaseState;
void raspi_base_machine_init(MachineState *machine,
BCM283XBaseState *soc);
void raspi_machine_class_common_init(MachineClass *mc,
uint32_t board_rev);
#define MSYNC_OFFSET 0x0000 /* Multicore Sync Block */
#define CCPT_OFFSET 0x1000 /* Compact Camera Port 2 TX */
#define INTE_OFFSET 0x2000 /* VC Interrupt controller */

2
include/hw/display/bcm2835_fb.h
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@ -16,6 +16,8 @@
#include "ui/console.h"
#include "qom/object.h"
#define UPPER_RAM_BASE 0x40000000
#define TYPE_BCM2835_FB "bcm2835-fb"
OBJECT_DECLARE_SIMPLE_TYPE(BCM2835FBState, BCM2835_FB)