--- Begin Message ---
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Subject: |
[PATCH] gnu: raspberry-pi: Add helpers for config.txt file generation. |
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Date: |
Tue, 10 Nov 2020 00:53:52 +0100 |
* gnu/packages/raspberry-pi.scm (raspi-config-file, raspi-custom.txt):
New functions.
(raspi-config.txt, raspi-u-boot-bootloader.txt, raspi-kernel.txt):
New variables.
---
gnu/packages/raspberry-pi.scm | 44 +++++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/gnu/packages/raspberry-pi.scm b/gnu/packages/raspberry-pi.scm
index 7700c26d06..af3998c4d6 100644
--- a/gnu/packages/raspberry-pi.scm
+++ b/gnu/packages/raspberry-pi.scm
@@ -235,3 +235,47 @@ Raspberry Pi. Note: It does not work on Raspberry Pi 1.")
(install-file "arm64.bin" libexec)
#t))))))))
(supported-systems '("aarch64-linux"))))
+
+(define-public (raspi-config-file name content)
+ "Creates a configuration file like config.txt for the Raspberry Pi firmware.
+CONTENT can be a list of strings, which are concatenated with a newline
+character. Alternatively CONTENT can be a string with the full file content."
+ (plain-file
+ name
+ (if (list? content)
+ (string-join content "\n" 'suffix)
+ content)))
+
+(define-public raspi-config.txt
+ ;; Creates a config.txt to start the ARM cores up in 64-bit mode if necessary
+ ;; and to include bootloader.txt, kernel.txt, and a custom.txt, each with
+ ;; separate configurations for the Raspberry Pi firmware.
+ (raspi-config-file
+ "config.txt"
+ `("# See
https://www.raspberrypi.org/documentation/configuration/config-txt/README.md
for details."
+ ""
+ ,(string-append "arm_64bit=" (if (target-aarch64?) "1" "0"))
+ "include bootloader.txt"
+ "include kernel.txt"
+ "include custom.txt")))
+
+(define-public raspi-u-boot-bootloader.txt
+ ;; Creates a bootloader.txt file to be included by the config.txt to load the
+ ;; U-Boot bootloader.
+ (raspi-config-file
+ "bootloader.txt"
+ "kernel=u-boot.bin"))
+
+(define-public raspi-kernel.txt
+ ;; Creates a kernel.txt to be included by the config.txt to ensure that
+ ;; upstream kernel and device tree files can be used.
+ (raspi-config-file
+ "kernel.txt"
+ '("dtoverlay=upstream"
+ "upstream_kernel=1")))
+
+(define-public (raspi-custom.txt content)
+ "Creates a custom.txt to be included by the config.txt. CONTENT can be a
list
+of strings, which are concatenated with a newline character. Alternatively
+CONTENT can be a string with the full file content."
+ (raspi-config-file "custom.txt" content))
--
2.26.0
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