From ff2545ab78212717b5d81bc0fb6a91fd393f3cb1 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Thu, 14 Apr 2016 16:07:54 +0200 Subject: efi_loader: Fall back to fdtfile naming convention MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When there is no $fdtfile variable set, we still have a good chance that on 32bit arm the fdtfile really is just called $soc-$board.dtb. Enable the exports for $soc and $board in our distr defaults and make use of them in the efi boot script. Reported-by: Andreas Faerber Reported-by: Stephen Warren Signed-off-by: Alexander Graf Reviewed-by: Andreas Färber --- include/config_distro_bootcmd.h | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-) (limited to 'include/config_distro_bootcmd.h') diff --git a/include/config_distro_bootcmd.h b/include/config_distro_bootcmd.h index dddebc3..7f67344 100644 --- a/include/config_distro_bootcmd.h +++ b/include/config_distro_bootcmd.h @@ -99,6 +99,21 @@ #endif #ifdef BOOTEFI_NAME +#if defined(CONFIG_ARM) && !defined(CONFIG_ARM64) +/* + * On 32bit ARM systems there is a reasonable number of systems that follow + * the $soc-$board$boardver.dtb name scheme for their device trees. Use that + * scheme if we don't have an explicit fdtfile variable. + */ +#define BOOTENV_EFI_SET_FDTFILE_FALLBACK \ + "if test -z \"${fdtfile}\" -a -n \"${soc}\"; then " \ + "setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; " \ + "fi; " +#else +#define BOOTENV_EFI_SET_FDTFILE_FALLBACK +#endif + + #define BOOTENV_SHARED_EFI \ "boot_efi_binary=" \ "load ${devtype} ${devnum}:${distro_bootpart} " \ @@ -111,14 +126,16 @@ \ "load_efi_dtb=" \ "load ${devtype} ${devnum}:${distro_bootpart} " \ - "${fdt_addr_r} ${prefix}${fdtfile}\0" \ + "${fdt_addr_r} ${prefix}${efi_fdtfile}\0" \ \ "efi_dtb_prefixes=/ /dtb/ /dtb/current/\0" \ "scan_dev_for_efi=" \ + "setenv efi_fdtfile ${fdtfile}; " \ + BOOTENV_EFI_SET_FDTFILE_FALLBACK \ "for prefix in ${efi_dtb_prefixes}; do " \ "if test -e ${devtype} " \ "${devnum}:${distro_bootpart} " \ - "${prefix}${fdtfile}; then " \ + "${prefix}${efi_fdtfile}; then " \ "run load_efi_dtb; " \ "fi;" \ "done;" \ @@ -128,7 +145,8 @@ "efi/boot/"BOOTEFI_NAME"; " \ "run boot_efi_binary; " \ "echo EFI LOAD FAILED: continuing...; " \ - "fi; \0" + "fi; " \ + "setenv efi_fdtfile\0" #define SCAN_DEV_FOR_EFI "run scan_dev_for_efi;" #else #define BOOTENV_SHARED_EFI -- cgit v1.1