raspi: Raspberry Pi 3 support
This patch adds Raspberry Pi 3 support to hw/arm/raspi.c. The differences to Pi 2 are: - Firmware address - Board ID - Board revision The CPU is different too, but that's going to be configured as part of the machine default CPU when we introduce a new machine type. The patch was written from scratch by me but the logic is similar to Zoltán Baldaszti's previous work, which I used as a reference (with permission from the author): https://github.com/bztsrc/qemu-raspi3 Signed-off-by: Pekka Enberg <penberg@iki.fi> [PMM: fixed trailing whitespace on one line] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
parent
d9f8bbd8eb
commit
bade58166f
|
@ -5,6 +5,9 @@
|
||||||
* Rasperry Pi 2 emulation Copyright (c) 2015, Microsoft
|
* Rasperry Pi 2 emulation Copyright (c) 2015, Microsoft
|
||||||
* Written by Andrew Baumann
|
* Written by Andrew Baumann
|
||||||
*
|
*
|
||||||
|
* Raspberry Pi 3 emulation Copyright (c) 2018 Zoltán Baldaszti
|
||||||
|
* Upstream code cleanup (c) 2018 Pekka Enberg
|
||||||
|
*
|
||||||
* This code is licensed under the GNU GPLv2 and later.
|
* This code is licensed under the GNU GPLv2 and later.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
|
@ -22,10 +25,11 @@
|
||||||
#define SMPBOOT_ADDR 0x300 /* this should leave enough space for ATAGS */
|
#define SMPBOOT_ADDR 0x300 /* this should leave enough space for ATAGS */
|
||||||
#define MVBAR_ADDR 0x400 /* secure vectors */
|
#define MVBAR_ADDR 0x400 /* secure vectors */
|
||||||
#define BOARDSETUP_ADDR (MVBAR_ADDR + 0x20) /* board setup code */
|
#define BOARDSETUP_ADDR (MVBAR_ADDR + 0x20) /* board setup code */
|
||||||
#define FIRMWARE_ADDR 0x8000 /* Pi loads kernel.img here by default */
|
#define FIRMWARE_ADDR_2 0x8000 /* Pi 2 loads kernel.img here by default */
|
||||||
|
#define FIRMWARE_ADDR_3 0x80000 /* Pi 3 loads kernel.img here by default */
|
||||||
|
|
||||||
/* Table of Linux board IDs for different Pi versions */
|
/* Table of Linux board IDs for different Pi versions */
|
||||||
static const int raspi_boardid[] = {[1] = 0xc42, [2] = 0xc43};
|
static const int raspi_boardid[] = {[1] = 0xc42, [2] = 0xc43, [3] = 0xc44};
|
||||||
|
|
||||||
typedef struct RasPiState {
|
typedef struct RasPiState {
|
||||||
BCM2836State soc;
|
BCM2836State soc;
|
||||||
|
@ -83,8 +87,8 @@ static void setup_boot(MachineState *machine, int version, size_t ram_size)
|
||||||
binfo.secure_board_setup = true;
|
binfo.secure_board_setup = true;
|
||||||
binfo.secure_boot = true;
|
binfo.secure_boot = true;
|
||||||
|
|
||||||
/* Pi2 requires SMP setup */
|
/* Pi2 and Pi3 requires SMP setup */
|
||||||
if (version == 2) {
|
if (version >= 2) {
|
||||||
binfo.smp_loader_start = SMPBOOT_ADDR;
|
binfo.smp_loader_start = SMPBOOT_ADDR;
|
||||||
binfo.write_secondary_boot = write_smpboot;
|
binfo.write_secondary_boot = write_smpboot;
|
||||||
binfo.secondary_cpu_reset_hook = reset_secondary;
|
binfo.secondary_cpu_reset_hook = reset_secondary;
|
||||||
|
@ -94,15 +98,16 @@ static void setup_boot(MachineState *machine, int version, size_t ram_size)
|
||||||
* the normal Linux boot process
|
* the normal Linux boot process
|
||||||
*/
|
*/
|
||||||
if (machine->firmware) {
|
if (machine->firmware) {
|
||||||
|
hwaddr firmware_addr = version == 3 ? FIRMWARE_ADDR_3 : FIRMWARE_ADDR_2;
|
||||||
/* load the firmware image (typically kernel.img) */
|
/* load the firmware image (typically kernel.img) */
|
||||||
r = load_image_targphys(machine->firmware, FIRMWARE_ADDR,
|
r = load_image_targphys(machine->firmware, firmware_addr,
|
||||||
ram_size - FIRMWARE_ADDR);
|
ram_size - firmware_addr);
|
||||||
if (r < 0) {
|
if (r < 0) {
|
||||||
error_report("Failed to load firmware from %s", machine->firmware);
|
error_report("Failed to load firmware from %s", machine->firmware);
|
||||||
exit(1);
|
exit(1);
|
||||||
}
|
}
|
||||||
|
|
||||||
binfo.entry = FIRMWARE_ADDR;
|
binfo.entry = firmware_addr;
|
||||||
binfo.firmware_loaded = true;
|
binfo.firmware_loaded = true;
|
||||||
} else {
|
} else {
|
||||||
binfo.kernel_filename = machine->kernel_filename;
|
binfo.kernel_filename = machine->kernel_filename;
|
||||||
|
@ -113,7 +118,7 @@ static void setup_boot(MachineState *machine, int version, size_t ram_size)
|
||||||
arm_load_kernel(ARM_CPU(first_cpu), &binfo);
|
arm_load_kernel(ARM_CPU(first_cpu), &binfo);
|
||||||
}
|
}
|
||||||
|
|
||||||
static void raspi2_init(MachineState *machine)
|
static void raspi_init(MachineState *machine, int version)
|
||||||
{
|
{
|
||||||
RasPiState *s = g_new0(RasPiState, 1);
|
RasPiState *s = g_new0(RasPiState, 1);
|
||||||
uint32_t vcram_size;
|
uint32_t vcram_size;
|
||||||
|
@ -139,7 +144,8 @@ static void raspi2_init(MachineState *machine)
|
||||||
&error_abort);
|
&error_abort);
|
||||||
object_property_set_int(OBJECT(&s->soc), smp_cpus, "enabled-cpus",
|
object_property_set_int(OBJECT(&s->soc), smp_cpus, "enabled-cpus",
|
||||||
&error_abort);
|
&error_abort);
|
||||||
object_property_set_int(OBJECT(&s->soc), 0xa21041, "board-rev",
|
int board_rev = version == 3 ? 0xa02082 : 0xa21041;
|
||||||
|
object_property_set_int(OBJECT(&s->soc), board_rev, "board-rev",
|
||||||
&error_abort);
|
&error_abort);
|
||||||
object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_abort);
|
object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_abort);
|
||||||
|
|
||||||
|
@ -157,7 +163,12 @@ static void raspi2_init(MachineState *machine)
|
||||||
|
|
||||||
vcram_size = object_property_get_uint(OBJECT(&s->soc), "vcram-size",
|
vcram_size = object_property_get_uint(OBJECT(&s->soc), "vcram-size",
|
||||||
&error_abort);
|
&error_abort);
|
||||||
setup_boot(machine, 2, machine->ram_size - vcram_size);
|
setup_boot(machine, version, machine->ram_size - vcram_size);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void raspi2_init(MachineState *machine)
|
||||||
|
{
|
||||||
|
raspi_init(machine, 2);
|
||||||
}
|
}
|
||||||
|
|
||||||
static void raspi2_machine_init(MachineClass *mc)
|
static void raspi2_machine_init(MachineClass *mc)
|
||||||
|
|
Loading…
Reference in a new issue