Merge tag 'efi-2024-10-rc4' of https://source.denx.de/u-boot/custodians/u-boot-efi
Pull request efi-2024-10-rc4
Documentation:
* Add description of the pwm command
UEFI
* Correct printf codes in mkeficapsule
* Allow CONFIG_EFI_LOADER_BOUNCE_BUFFER on all architectures
* Free memory in efi_get_dp_from_boot()
diff --git a/doc/usage/cmd/pwm.rst b/doc/usage/cmd/pwm.rst
new file mode 100644
index 0000000..522acb5
--- /dev/null
+++ b/doc/usage/cmd/pwm.rst
@@ -0,0 +1,91 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+.. index::
+ single: pwm (command)
+
+pwm command
+===========
+
+Synopsis
+--------
+
+::
+
+ pwm invert <pwm_dev_num> <channel> <polarity>
+ pwm config <pwm_dev_num> <channel> <period_ns> <duty_ns>
+ pwm enable <pwm_dev_num> <channel>
+ pwm disable <pwm_dev_num> <channel>
+
+
+Description
+-----------
+
+The ``pwm`` command is used to access and configure PWM (Pulse Width Modulation)
+signals.
+
+pwm invert
+----------
+
+* If the value of ``polarity`` is 0, the default polarity is used.
+* If the value of ``polarity`` is 1, the polarity is inverted.
+
+pwm config
+----------
+
+Configure the period and duty period in nanoseconds.
+
+pwm enable
+----------
+
+Enable output on the configured device and channel.
+
+pwm disable
+-----------
+
+Disable output on the configured device and channel.
+
+pwm_dev_num
+ Device number of the pulse width modulation device
+
+channel
+ Output channel of the PWM device
+
+polarity
+ * 0 - Use normal polarity
+ * 1 - Use inverted polarity
+
+duty_ns
+ Duty period in ns
+
+period_ns
+ Period time in ns
+
+Examples
+--------
+
+Configure device 0, channel 0 to 20 µs period and 14 µs (that is, 70%) duty period::
+
+ => pwm config 0 0 20000 14000
+
+Enable output on the configured device and channel::
+
+ => pwm enable 0 0
+
+Disable output on the configured device and channel::
+
+ => pwm disable 0 0
+
+Invert the signal on the configured device and channel::
+
+ => pwm invert 0 0 1
+
+Configuration
+-------------
+
+The ``pwm`` command is only available if CONFIG_CMD_PWM=y.
+
+Return value
+------------
+
+If the command succeeds, the return value ``$?`` is set to 0. If an error occurs, the
+return value ``$?`` is set to 1.
diff --git a/doc/usage/index.rst b/doc/usage/index.rst
index 1f6518b..6a218c4 100644
--- a/doc/usage/index.rst
+++ b/doc/usage/index.rst
@@ -93,6 +93,7 @@
cmd/pinmux
cmd/printenv
cmd/pstore
+ cmd/pwm
cmd/qfw
cmd/read
cmd/reset
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
index 1179c31..6ffefa9 100644
--- a/lib/efi_loader/Kconfig
+++ b/lib/efi_loader/Kconfig
@@ -364,7 +364,6 @@
config EFI_LOADER_BOUNCE_BUFFER
bool "EFI Applications use bounce buffers for DMA operations"
- depends on ARM64
help
Some hardware does not support DMA to full 64bit addresses. For this
hardware we can create a bounce buffer so that payloads don't have to
diff --git a/lib/efi_loader/efi_helper.c b/lib/efi_loader/efi_helper.c
index 65d2116..916f43d 100644
--- a/lib/efi_loader/efi_helper.c
+++ b/lib/efi_loader/efi_helper.c
@@ -74,6 +74,7 @@
*/
struct efi_device_path *efi_get_dp_from_boot(const efi_guid_t *guid)
{
+ struct efi_device_path *file_path = NULL;
struct efi_load_option lo;
void *var_value;
efi_uintn_t size;
@@ -92,11 +93,11 @@
if (ret != EFI_SUCCESS)
goto err;
- return efi_dp_from_lo(&lo, guid);
+ file_path = efi_dp_from_lo(&lo, guid);
err:
free(var_value);
- return NULL;
+ return file_path;
}
/**
diff --git a/tools/mkeficapsule.c b/tools/mkeficapsule.c
index f28008a..1b53151 100644
--- a/tools/mkeficapsule.c
+++ b/tools/mkeficapsule.c
@@ -5,6 +5,7 @@
*/
#include <getopt.h>
+#include <inttypes.h>
#include <pe.h>
#include <stdbool.h>
#include <stdint.h>
@@ -691,7 +692,7 @@
static void dump_capsule_auth_header(
struct efi_firmware_image_authentication *capsule_auth_hdr)
{
- printf("EFI_FIRMWARE_IMAGE_AUTH.MONOTONIC_COUNT\t\t: %08lX\n",
+ printf("EFI_FIRMWARE_IMAGE_AUTH.MONOTONIC_COUNT\t\t: %08" PRIX64 "\n",
capsule_auth_hdr->monotonic_count);
printf("EFI_FIRMWARE_IMAGE_AUTH.AUTH_INFO.HDR.dwLENGTH\t: %08X\n",
capsule_auth_hdr->auth_info.hdr.dwLength);
@@ -724,9 +725,9 @@
image_hdr->update_image_size);
printf("FMP_CAPSULE_IMAGE_HDR.UPDATE_VENDOR_CODE_SIZE\t: %08X\n",
image_hdr->update_vendor_code_size);
- printf("FMP_CAPSULE_IMAGE_HDR.UPDATE_HARDWARE_INSTANCE\t: %08lX\n",
+ printf("FMP_CAPSULE_IMAGE_HDR.UPDATE_HARDWARE_INSTANCE\t: %08" PRIX64 "\n",
image_hdr->update_hardware_instance);
- printf("FMP_CAPSULE_IMAGE_HDR.IMAGE_CAPSULE_SUPPORT\t: %08lX\n",
+ printf("FMP_CAPSULE_IMAGE_HDR.IMAGE_CAPSULE_SUPPORT\t: %08" PRIX64 "\n",
image_hdr->image_capsule_support);
printf("--------\n");