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bcm2835_fb: add framebuffer device for Raspberry Pi

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The framebuffer occupies the upper portion of memory (64MiB by
default), but it can only be controlled/configured via a system
mailbox or property channel (to be added by a subsequent patch).

Signed-off-by: Grégory ESTRADE <gregory.estrade@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Message-id: 1457467526-8840-4-git-send-email-Andrew.Baumann@microsoft.com
[AB: added Windows (BGR) support and cleanup/refactoring for upstream submission]
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Grégory ESTRADE 2016-03-16 17:06:01 +00:00 • committed by Peter Maydell
parent 97398d900c
commit 5e9c2a8dac
7 changed files with 517 additions and 2 deletions
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5
hw/arm/raspi.c
View file

@ -113,6 +113,7 @@ static void setup_boot(MachineState *machine, int version, size_t ram_size)
static void raspi2_init(MachineState *machine)
{
RasPiState *s = g_new0(RasPiState, 1);
uint32_t vcram_size;
DriveInfo *di;
BlockBackend *blk;
BusState *bus;
@ -149,7 +150,9 @@ static void raspi2_init(MachineState *machine)
qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
object_property_set_bool(OBJECT(carddev), true, "realized", &error_fatal);
setup_boot(machine, 2, machine->ram_size);
vcram_size = object_property_get_int(OBJECT(&s->soc), "vcram-size",
&error_abort);
setup_boot(machine, 2, machine->ram_size - vcram_size);
}
static void raspi2_machine_init(MachineClass *mc)