diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/boards/stm32mp.rst | 13 | ||||
| -rw-r--r-- | Documentation/user/booting-linux.rst | 2 |
2 files changed, 13 insertions, 2 deletions
diff --git a/Documentation/boards/stm32mp.rst b/Documentation/boards/stm32mp.rst index 7c657eb990..b235c39927 100644 --- a/Documentation/boards/stm32mp.rst +++ b/Documentation/boards/stm32mp.rst @@ -64,7 +64,7 @@ An appropriate image for a SD-Card can be generated with following } For eMMC, the boot partitions are used as the FSBL partitions and so the user -partitions may look like this: +partitions may look like this:: image @STM32MP_BOARD@.img { partition ssbl { @@ -80,6 +80,17 @@ partitions may look like this: The fsbl1 and fsbl2 can be flashed by writing to barebox ``/dev/mmcX.boot0`` and ``/dev/mmcX.boot1`` respectively or from a booted operating system. +Additionally, the eMMC's ``ext_csd`` register must be modified to activate the +boot acknowledge signal (``BOOT_ACK``) and to select a boot partition. + +Assuming ``CONFIG_CMD_MMC_EXTCSD`` is enabled and the board shall boot from +``/dev/mmc1.boot1``:: + + mmc_extcsd /dev/mmc1 -i 179 -v 0x50 + +The STM32MP1 BootROM does *not* support booting from eMMC without fast boot +acknowledge. + Boot source selection --------------------- diff --git a/Documentation/user/booting-linux.rst b/Documentation/user/booting-linux.rst index 983b56deef..60babb513c 100644 --- a/Documentation/user/booting-linux.rst +++ b/Documentation/user/booting-linux.rst @@ -274,7 +274,7 @@ In any case, make sure that the specified mountpoint is exported by your NFS server. For more information about booting with ``nfsroot``, see -`Documentation/filesystems/nfs/nfsroot.txt <https://github.com/torvalds/linux/blob/master/Documentation/filesystems/nfs/nfsroot.txt>`__ +`Documentation/admin-guide/nfs/nfsroot.rst <https://github.com/torvalds/linux/blob/master/Documentation/admin-guide/nfs/nfsroot.rst>`__ in the Linux kernel documentation. If the preconfigured paths or names are not suitable, they can be adjusted in |