diff options
| author | Strahinja Jankovic <strahinjapjankovic@gmail.com> | 2022-12-26 23:03:02 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2023-01-12 16:50:19 +0000 |
| commit | bb9271cadb0d0b32d566619606fedc9c08f612cc (patch) | |
| tree | 7ee654e350ec42e93b35a96d8b09489aae38f740 /include/hw | |
| parent | 28057e490b970390e3a94fce1a36098ddeb0026d (diff) | |
hw/arm: Allwinner A10 enable SPL load from MMC
This patch enables copying of SPL from MMC if `-kernel` parameter is not
passed when starting QEMU. SPL is copied to SRAM_A.
The approach is reused from Allwinner H3 implementation.
Tested with Armbian and custom Yocto image.
Signed-off-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20221226220303.14420-7-strahinja.p.jankovic@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/arm/allwinner-a10.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h index e569e66109..e0f2f7ab19 100644 --- a/include/hw/arm/allwinner-a10.h +++ b/include/hw/arm/allwinner-a10.h @@ -16,6 +16,7 @@ #include "hw/misc/allwinner-a10-ccm.h" #include "hw/misc/allwinner-a10-dramc.h" #include "hw/i2c/allwinner-i2c.h" +#include "sysemu/block-backend.h" #include "target/arm/cpu.h" #include "qom/object.h" @@ -48,4 +49,24 @@ struct AwA10State { OHCISysBusState ohci[AW_A10_NUM_USB]; }; +/** + * Emulate Boot ROM firmware setup functionality. + * + * A real Allwinner A10 SoC contains a Boot ROM + * which is the first code that runs right after + * the SoC is powered on. The Boot ROM is responsible + * for loading user code (e.g. a bootloader) from any + * of the supported external devices and writing the + * downloaded code to internal SRAM. After loading the SoC + * begins executing the code written to SRAM. + * + * This function emulates the Boot ROM by copying 32 KiB + * of data at offset 8 KiB from the given block device and writes it to + * the start of the first internal SRAM memory. + * + * @s: Allwinner A10 state object pointer + * @blk: Block backend device object pointer + */ +void allwinner_a10_bootrom_setup(AwA10State *s, BlockBackend *blk); + #endif |