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hw/arm/fsl-imx8mp: Add USDHC storage controllers

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The USDHC emulation allows for running real-world images such as those generated
by Buildroot. Convert the board documentation accordingly instead of running a
Linux kernel with ephemeral storage.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-id: 20250223114708.1780-8-shentey@gmail.com
[PMM: drop 'static const' from usdhc_table[] for GCC 7.5]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Bernhard Beschow 2025-02-23 12:46:57 +01:00 • committed by Peter Maydell
parent 487967bed6
commit a81193c3e9
5 changed files with 66 additions and 6 deletions
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18
hw/arm/imx8mp-evk.c
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@ -11,6 +11,7 @@
#include "hw/arm/boot.h"
#include "hw/arm/fsl-imx8mp.h"
#include "hw/boards.h"
#include "hw/qdev-properties.h"
#include "system/qtest.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
@ -40,6 +41,23 @@ static void imx8mp_evk_init(MachineState *machine)
memory_region_add_subregion(get_system_memory(), FSL_IMX8MP_RAM_START,
machine->ram);
for (int i = 0; i < FSL_IMX8MP_NUM_USDHCS; i++) {
BusState *bus;
DeviceState *carddev;
BlockBackend *blk;
DriveInfo *di = drive_get(IF_SD, i, 0);
if (!di) {
continue;
}
blk = blk_by_legacy_dinfo(di);
bus = qdev_get_child_bus(DEVICE(&s->usdhc[i]), "sd-bus");
carddev = qdev_new(TYPE_SD_CARD);
qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
qdev_realize_and_unref(carddev, bus, &error_fatal);
}
if (!qtest_enabled()) {
arm_load_kernel(&s->cpu[0], machine, &boot_info);
}