u-boot/arch/arm/dts/sunxi-u-boot.dtsi
Samuel Holland e72a6be4fc sunxi: binman: Add support for including SCP firmware
Allwinner sun50i SoCs contain an OpenRISC 1000 CPU that functions as a
System Control Processor, or SCP. ARM Trusted Firmware (ATF)
communicates with the SCP over SCPI to implement the PSCI system
suspend, shutdown and reset functionality. Currently, SCP firmware is
optional; the system will boot and run without it, but system suspend
will be unavailable.

Since all communication with the SCP is mediated by ATF, the only thing
U-Boot needs to do is load the firmware into SRAM. The SCP firmware
occupies the last 16KiB of SRAM A2, immediately following ATF.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2020-10-22 11:43:43 +05:30

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1.6 KiB
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#include <config.h>
#ifdef CONFIG_MACH_SUN50I_H6
#define BL31_ADDR 0x104000
#define SCP_ADDR 0x114000
#else
#define BL31_ADDR 0x44000
#define SCP_ADDR 0x50000
#endif
/ {
aliases {
mmc1 = &mmc2;
};
binman: binman {
multiple-images;
};
};
&binman {
u-boot-sunxi-with-spl {
filename = "u-boot-sunxi-with-spl.bin";
pad-byte = <0xff>;
blob {
filename = "spl/sunxi-spl.bin";
};
#ifdef CONFIG_ARM64
fit {
description = "Configuration to load ATF before U-Boot";
#address-cells = <1>;
fit,fdt-list = "of-list";
images {
uboot {
description = "U-Boot (64-bit)";
type = "standalone";
os = "u-boot";
arch = "arm64";
compression = "none";
load = <0x4a000000>;
u-boot-nodtb {
};
};
atf {
description = "ARM Trusted Firmware";
type = "firmware";
os = "arm-trusted-firmware";
arch = "arm64";
compression = "none";
load = <BL31_ADDR>;
entry = <BL31_ADDR>;
atf-bl31 {
filename = "bl31.bin";
missing-msg = "atf-bl31-sunxi";
};
};
scp {
description = "SCP firmware";
type = "firmware";
arch = "or1k";
compression = "none";
load = <SCP_ADDR>;
scp {
filename = "scp.bin";
missing-msg = "scp-sunxi";
};
};
@fdt-SEQ {
description = "NAME";
type = "flat_dt";
compression = "none";
};
};
configurations {
default = "config-1";
@config-SEQ {
description = "NAME";
firmware = "atf";
loadables = "scp", "uboot";
fdt = "fdt-SEQ";
};
};
};
#else
u-boot-img {
offset = <CONFIG_SPL_PAD_TO>;
};
#endif
};
};