[PATCH v3 3/4] sunxi: binman: Support FIT generation for 32-bit SoCs
Samuel Holland
samuel at sholland.org
Tue Oct 31 06:17:40 CET 2023
Some 32-bit SoCs can use SCP firmware to implement additional PSCI
functionality, such as system suspend. In order to load this firmware
from SPL, we need to generate and use a FIT instead of a legacy image.
Adjust the binman FIT definition so it does not rely on TF-A BL31, as
this is not used on 32-bit SoCs. Instead, after loading the firmware,
U-Boot proper is executed directly.
Signed-off-by: Samuel Holland <samuel at sholland.org>
---
(no changes since v2)
Changes in v2:
- Rely on binman min-size instead of using explicit offsets
- Use Kconfig for firmware addresses instead of an #ifdef staircase
arch/arm/dts/sunxi-u-boot.dtsi | 23 ++++++++++++++++++-----
1 file changed, 18 insertions(+), 5 deletions(-)
diff --git a/arch/arm/dts/sunxi-u-boot.dtsi b/arch/arm/dts/sunxi-u-boot.dtsi
index 7a8764e463b..ed1cb91eeb5 100644
--- a/arch/arm/dts/sunxi-u-boot.dtsi
+++ b/arch/arm/dts/sunxi-u-boot.dtsi
@@ -1,5 +1,11 @@
#include <config.h>
+#ifdef CONFIG_ARM64
+#define ARCH "arm64"
+#else
+#define ARCH "arm"
+#endif
+
/ {
aliases {
mmc0 = &mmc0;
@@ -34,30 +40,32 @@
filename = "spl/sunxi-spl.bin";
};
-#ifdef CONFIG_ARM64
+#ifdef CONFIG_SPL_LOAD_FIT
fit {
- description = "Configuration to load ATF before U-Boot";
+ description = "Configuration to load U-Boot and firmware";
#address-cells = <1>;
fit,fdt-list = "of-list";
images {
uboot {
- description = "U-Boot (64-bit)";
+ description = "U-Boot";
type = "standalone";
os = "u-boot";
- arch = "arm64";
+ arch = ARCH;
compression = "none";
load = <CONFIG_TEXT_BASE>;
+ entry = <CONFIG_TEXT_BASE>;
u-boot-nodtb {
};
};
+#if CONFIG_SUNXI_BL31_BASE
atf {
description = "ARM Trusted Firmware";
type = "firmware";
os = "arm-trusted-firmware";
- arch = "arm64";
+ arch = ARCH;
compression = "none";
load = <CONFIG_SUNXI_BL31_BASE>;
entry = <CONFIG_SUNXI_BL31_BASE>;
@@ -67,6 +75,7 @@
missing-msg = "atf-bl31-sunxi";
};
};
+#endif
#if CONFIG_SUNXI_SCP_BASE
scp {
@@ -95,7 +104,11 @@
@config-SEQ {
description = "NAME";
+#if CONFIG_SUNXI_BL31_BASE
firmware = "atf";
+#else
+ firmware = "uboot";
+#endif
#if CONFIG_SUNXI_SCP_BASE
loadables = "scp", "uboot";
#else
--
2.41.0
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