While booting with efi, if fdt isn't available externally, just use the built-in one.
Signed-off-by: Shantur Rathore i@shantur.com --- boot/bootmeth_efi.c | 19 +++++++++++++------ include/bootflow.h | 2 ++ 2 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/boot/bootmeth_efi.c b/boot/bootmeth_efi.c index 183daad8f1..370d6fba9f 100644 --- a/boot/bootmeth_efi.c +++ b/boot/bootmeth_efi.c @@ -313,6 +313,7 @@ static int distro_efi_try_bootflow_files(struct udevice *dev, */ } else { log_debug("No device tree available\n"); + bflow->flags |= BOOTFLOWF_USE_BUILTIN_FDT; }
return 0; @@ -391,6 +392,7 @@ static int distro_efi_read_bootflow_net(struct bootflow *bflow) bflow->fdt_addr = fdt_addr; } else { log_debug("No device tree available\n"); + bflow->flags |= BOOTFLOWF_USE_BUILTIN_FDT; }
bflow->state = BOOTFLOWST_READY; @@ -429,13 +431,11 @@ static int distro_efi_boot(struct udevice *dev, struct bootflow *bflow) return log_msg_ret("read", ret);
/* - * use the provided device tree if available, else fall back to - * the control FDT + * use the provided device tree if not using the built-in fdt */ - if (bflow->fdt_fname) + if (bflow->flags & ~BOOTFLOWF_USE_BUILTIN_FDT) fdt = bflow->fdt_addr; - else - fdt = (ulong)map_to_sysmem(gd->fdt_blob); + } else { /* * This doesn't actually work for network devices: @@ -452,7 +452,14 @@ static int distro_efi_boot(struct udevice *dev, struct bootflow *bflow) * At some point we can add a real interface to bootefi so we can call * this directly. For now, go through the CLI, like distro boot. */ - snprintf(cmd, sizeof(cmd), "bootefi %lx %lx", kernel, fdt); + if (bflow->flags & BOOTFLOWF_USE_BUILTIN_FDT) { + log_debug("Booting with built-in fdt\n"); + snprintf(cmd, sizeof(cmd), "bootefi %lx", kernel); + } else { + log_debug("Booting with external fdt\n"); + snprintf(cmd, sizeof(cmd), "bootefi %lx %lx", kernel, fdt); + } + if (run_command(cmd, 0)) return log_msg_ret("run", -EINVAL);
diff --git a/include/bootflow.h b/include/bootflow.h index fede8f22a2..42112874f6 100644 --- a/include/bootflow.h +++ b/include/bootflow.h @@ -45,10 +45,12 @@ enum bootflow_state_t { * CONFIG_OF_HAS_PRIOR_STAGE is enabled * @BOOTFLOWF_STATIC_BUF: Indicates that @bflow->buf is statically set, rather * than being allocated by malloc(). + * @BOOTFLOWF_USE_BUILTIN_FDT : Indicates that current bootflow uses built-in FDT */ enum bootflow_flags_t { BOOTFLOWF_USE_PRIOR_FDT = 1 << 0, BOOTFLOWF_STATIC_BUF = 1 << 1, + BOOTFLOWF_USE_BUILTIN_FDT = 1 << 2, };
/**