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()

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.

doc/usage/index.rst

@@ -93,6 +93,7 @@ Shell commands
    cmd/pinmux
    cmd/printenv
    cmd/pstore
+   cmd/pwm
    cmd/qfw
    cmd/read
    cmd/reset

lib/efi_loader/Kconfig

@@ -364,7 +364,6 @@ endif
 
 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

lib/efi_loader/efi_helper.c

@@ -74,6 +74,7 @@ out:
  */
 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 @@ struct efi_device_path *efi_get_dp_from_boot(const efi_guid_t *guid)
 	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;
 }
 
 /**

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 uint32_t dump_fmp_payload_header(
 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 @@ static void dump_fmp_capsule_image_header(
 	       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");