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firmware-utils: ptgen: add SiFive-related GUID types 

Add patch until it gets accepted in firmware-utils upstream.

The SiFive RISC-V SoCs use two special partition types in the boot process.
As a first step, the ZSBL (zero-stage bootloader) in the CPU looks for a
partition with a GUID of 5B193300-FC78-40CD-8002-E86C45580B47 to load the
first-stage bootloader - which in OpenWrt's case is an SPL image. The FSBL
(SPL) then looks for a partition with a GUID of
2E54B353-1271-4842-806F-E436D6AF6985 to load the SSBL which is usually an
u-boot.

With ptgen already supporting GPT partition creation, add the required GUID
types and name them accordingly to be invoked with the '-T <GPT partition
type>' parameter.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
This commit is contained in:
Zoltan HERPAI 2022-04-23 19:06:28 +02:00
parent a0840ecd53
commit 18238c4428
1 changed files with 38 additions and 0 deletions
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38
tools/firmware-utils/patches/001-add-sifiveu-guid-types.patch Normal file
View File

@ -0,0 +1,38 @@
diff -ruN firmware-utils-2022-02-28-002cfaf0.old/src/ptgen.c firmware-utils-2022-02-28-002cfaf0/src/ptgen.c
--- firmware-utils-2022-02-28-002cfaf0.old/src/ptgen.c 2022-04-23 19:02:07.307896842 +0200
+++ firmware-utils-2022-02-28-002cfaf0/src/ptgen.c 2022-04-22 18:48:54.477970950 +0200
@@ -82,6 +82,14 @@
GUID_INIT( 0x0fc63daf, 0x8483, 0x4772, \
0x8e, 0x79, 0x3d, 0x69, 0xd8, 0x47, 0x7d, 0xe4)
+#define GUID_PARTITION_SIFIVE_SPL \
+ GUID_INIT( 0x5b193300, 0xfc78, 0x40cd, \
+ 0x80, 0x02, 0xe8, 0x6c, 0x45, 0x58, 0x0b, 0x47)
+
+#define GUID_PARTITION_SIFIVE_UBOOT \
+ GUID_INIT( 0x2e54b353, 0x1271, 0x4842, \
+ 0x80, 0x6f, 0xe4, 0x36, 0xd6, 0xaf, 0x69, 0x85)
+
#define GPT_HEADER_SIZE 92
#define GPT_ENTRY_SIZE 128
#define GPT_ENTRY_MAX 128
@@ -276,6 +284,19 @@
(1ULL << 56); /* success=1 */
return true;
}
+
+ if (!strcmp(type, "sifiveu_spl")) {
+ part->has_guid = true;
+ part->guid = GUID_PARTITION_SIFIVE_SPL;
+ return true;
+ }
+
+ if (!strcmp(type, "sifiveu_uboot")) {
+ part->has_guid = true;
+ part->guid = GUID_PARTITION_SIFIVE_UBOOT;
+ return true;
+ }
+
return false;
}