The ZynqMP boots from an SDHCI device by reading a boot.bin file from the FAT16/32 partition, which is the first partition in the MBR.
The update handler copies a boot.bin image to this partition, which might be board specific. Signed-off-by: Michael Tretter <[email protected]> --- arch/arm/mach-zynqmp/Makefile | 1 + .../arm/mach-zynqmp/include/mach/zynqmp-bbu.h | 21 ++++++++ arch/arm/mach-zynqmp/zynqmp-bbu.c | 48 +++++++++++++++++++ 3 files changed, 70 insertions(+) create mode 100644 arch/arm/mach-zynqmp/include/mach/zynqmp-bbu.h create mode 100644 arch/arm/mach-zynqmp/zynqmp-bbu.c diff --git a/arch/arm/mach-zynqmp/Makefile b/arch/arm/mach-zynqmp/Makefile index 14b8a4e46b87..e24a43c0d59f 100644 --- a/arch/arm/mach-zynqmp/Makefile +++ b/arch/arm/mach-zynqmp/Makefile @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-or-later obj-y += firmware-zynqmp.o obj-y += zynqmp.o +obj-$(CONFIG_BAREBOX_UPDATE) += zynqmp-bbu.o diff --git a/arch/arm/mach-zynqmp/include/mach/zynqmp-bbu.h b/arch/arm/mach-zynqmp/include/mach/zynqmp-bbu.h new file mode 100644 index 000000000000..8502791ee0f7 --- /dev/null +++ b/arch/arm/mach-zynqmp/include/mach/zynqmp-bbu.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 Michael Tretter <[email protected]> + */ +#ifndef __MACH_ZYNQMP_BBU_H +#define __MACH_ZYNQMP_BBU_H + +#include <bbu.h> + +#ifdef CONFIG_BAREBOX_UPDATE +int zynqmp_bbu_register_handler(const char *name, char *devicefile, + unsigned long flags); +#else +static int zynqmp_bbu_register_handler(const char *name, char *devicefile, + unsigned long flags) +{ + return 0; +}; +#endif + +#endif /* __MACH_ZYNQMP_BBU_H */ diff --git a/arch/arm/mach-zynqmp/zynqmp-bbu.c b/arch/arm/mach-zynqmp/zynqmp-bbu.c new file mode 100644 index 000000000000..d1197c01dc41 --- /dev/null +++ b/arch/arm/mach-zynqmp/zynqmp-bbu.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2020 Michael Tretter <[email protected]> + */ + +#include <common.h> +#include <libfile.h> +#include <mach/zynqmp-bbu.h> + +static int zynqmp_bbu_handler(struct bbu_handler *handler, + struct bbu_data *data) +{ + int ret = 0; + + ret = bbu_confirm(data); + if (ret) + return ret; + + ret = copy_file(data->imagefile, data->devicefile, 1); + if (ret < 0) { + pr_err("update failed: %s", strerror(-ret)); + return ret; + } + + return ret; +} + +int zynqmp_bbu_register_handler(const char *name, char *devicefile, + unsigned long flags) +{ + struct bbu_handler *handler; + int ret = 0; + + if (!name || !devicefile) + return -EINVAL; + + handler = xzalloc(sizeof(*handler)); + handler->name = name; + handler->devicefile = devicefile; + handler->flags = flags; + handler->handler = zynqmp_bbu_handler; + + ret = bbu_register_handler(handler); + if (ret) + free(handler); + + return ret; +} -- 2.29.2 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
