mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
e72a6be4fc
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>
102 lines
1.6 KiB
Plaintext
102 lines
1.6 KiB
Plaintext
#include <config.h>
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#ifdef CONFIG_MACH_SUN50I_H6
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#define BL31_ADDR 0x104000
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#define SCP_ADDR 0x114000
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#else
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#define BL31_ADDR 0x44000
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#define SCP_ADDR 0x50000
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#endif
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/ {
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aliases {
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mmc1 = &mmc2;
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};
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binman: binman {
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multiple-images;
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};
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};
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&binman {
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u-boot-sunxi-with-spl {
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filename = "u-boot-sunxi-with-spl.bin";
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pad-byte = <0xff>;
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blob {
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filename = "spl/sunxi-spl.bin";
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};
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#ifdef CONFIG_ARM64
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fit {
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description = "Configuration to load ATF before U-Boot";
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#address-cells = <1>;
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fit,fdt-list = "of-list";
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images {
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uboot {
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description = "U-Boot (64-bit)";
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type = "standalone";
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os = "u-boot";
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arch = "arm64";
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compression = "none";
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load = <0x4a000000>;
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u-boot-nodtb {
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};
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};
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atf {
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description = "ARM Trusted Firmware";
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type = "firmware";
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os = "arm-trusted-firmware";
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arch = "arm64";
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compression = "none";
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load = <BL31_ADDR>;
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entry = <BL31_ADDR>;
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atf-bl31 {
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filename = "bl31.bin";
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missing-msg = "atf-bl31-sunxi";
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};
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};
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scp {
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description = "SCP firmware";
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type = "firmware";
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arch = "or1k";
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compression = "none";
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load = <SCP_ADDR>;
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scp {
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filename = "scp.bin";
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missing-msg = "scp-sunxi";
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};
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};
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@fdt-SEQ {
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description = "NAME";
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type = "flat_dt";
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compression = "none";
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};
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};
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configurations {
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default = "config-1";
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@config-SEQ {
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description = "NAME";
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firmware = "atf";
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loadables = "scp", "uboot";
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fdt = "fdt-SEQ";
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};
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};
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};
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#else
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u-boot-img {
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offset = <CONFIG_SPL_PAD_TO>;
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};
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#endif
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};
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};
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