Fix a typo in helloworld.efi.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

In the devicepath node to text conversion for Uart nodes a break statement
is missing.

Indicated by Coverity Scan CID 330038
Fixes: 62df6e9c9994 ("efi_loader: Uart device path")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

When uploading an EFI binary via the UART we need to assign a device path.

* Provide devicepath node to text conversion for Uart() node.
* Provide function to create Uart() device path.
* Add UART support to efi_dp_from_name().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Even if CONFIG_DM_VIDEO=y and stdout="vidconsole", a video device may not
be available. Check the return values of the relevant functions.

If no video output device is available, assume that the serial console is
in use.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

This occur when building on Raspberry Pi 400 (32-bit ARM). Fix them.

Examples:

cmd/efidebug.c: In function ‘do_efi_capsule_update’:
cmd/efidebug.c:75:49: warning: cast from pointer to integer of different
	size [-Wpointer-to-int-cast]
  ret = EFI_CALL(RT->update_capsule(&capsule, 1, (u64)NULL));
                                                 ^
include/efi_loader.h:104:9: note: in definition of macro ‘EFI_CALL’
  typeof(exp) _r = exp; \
         ^~~
cmd/efidebug.c:75:49: warning: cast from pointer to integer of different
	size [-Wpointer-to-int-cast]
  ret = EFI_CALL(RT->update_capsule(&capsule, 1, (u64)NULL));
                                                 ^
include/efi_loader.h:104:19: note: in definition of macro ‘EFI_CALL’
  typeof(exp) _r = exp; \
                   ^~~

In file included from include/common.h:20,
                 from lib/efi_loader/efi_capsule.c:9:
lib/efi_loader/efi_capsule.c: In function ‘efi_update_capsule’:
include/efi_loader.h:83:8: warning: format ‘%lu’ expects argument of type
	‘long unsigned int’, but argument 10 has type ‘size_t’
	{aka ‘unsigned int’} [-Wformat=]
  debug("%sEFI: Entry %s(" format ")\n", __efi_nesting_inc(), \
        ^~~~~~~~~~~~~~~~~~
include/linux/printk.h:37:21: note: in definition of macro ‘pr_fmt’
 #define pr_fmt(fmt) fmt
                     ^~~
include/log.h:229:2: note: in expansion of macro ‘log’
  log(LOG_CATEGORY, LOGL_DEBUG, fmt, ##args); \
  ^~~
include/log.h:249:2: note: in expansion of macro ‘debug_cond’
  debug_cond(_DEBUG, fmt, ##args)
  ^~~~~~~~~~
include/efi_loader.h:83:2: note: in expansion of macro ‘debug’
  debug("%sEFI: Entry %s(" format ")\n", __efi_nesting_inc(), \
  ^~~~~
lib/efi_loader/efi_capsule.c:444:2: note: in expansion of macro ‘EFI_ENTRY’
  EFI_ENTRY("%p, %lu, %llu\n", capsule_header_array, capsule_count,
  ^~~~~~~~~
lib/efi_loader/efi_capsule.c:444:19: note: format string is defined here
  EFI_ENTRY("%p, %lu, %llu\n", capsule_header_array, capsule_count,
                 ~~^
                 %u

Signed-off-by: Simon Glass <sjg@chromium.org>
Replace (uintptr_t)NULL by 0.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

We are redefining how u-boot locates the initrd to load via the kernel
LoadFile2 protocol.  This selftest is not relevant any more, so remove
it. A new one will be added later

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

On 32bit systems u64 cannot directly be cast to void *.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

The (yet unreleased version of the) devicetree specification clearly
states that:

  As with the /reserved-memory node, when booting via UEFI
  entries in the Memory Reservation Block must also be listed
  in the system memory map obtained via the GetMemoryMap() toi
  protect against allocations by UEFI applications. The memory
  reservation block entries should be listed with type
  EfiReservedMemoryType.

This restores the behaviour that was changed by commit 4cbb2930bd8c
("efi_loader: consider no-map property of reserved memory").

Fixes: 4cbb2930bd8c ("efi_loader: consider no-map property of reserved memory")
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

GRUB_ARM32_WORKAROUND can be disabled on ARCH_SUNXI as the Allwinner SoCs
only have a level 2 cache controlled via CP15 and not an architecturally
defined cache. Having the cache available speeds up booting Linux.

On ARCH_BCM283X it is already disabled via rpi_2_defconfig. But let's move
this setting to Kconfig.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>