diff options
| author | Samuel Holland <samuel@sholland.org> | 2020-10-22 05:12:16 +0300 |
|---|---|---|
| committer | Jagan Teki <jagan@amarulasolutions.com> | 2020-10-22 09:13:43 +0300 |
| commit | e72a6be4fc071930016903638e1e493ab5d3be8a (patch) | |
| tree | e9f81dae2d026188ec7edc378dfe2219abf9c868 /arch | |
| parent | 18bd45592cbd87a766450d08169ec574853b50fa (diff) | |
| download | u-boot-e72a6be4fc071930016903638e1e493ab5d3be8a.tar.xz | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/dts/sunxi-u-boot.dtsi | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/arm/dts/sunxi-u-boot.dtsi b/arch/arm/dts/sunxi-u-boot.dtsi index 9f5b103cbb..c77cf7cacf 100644 --- a/arch/arm/dts/sunxi-u-boot.dtsi +++ b/arch/arm/dts/sunxi-u-boot.dtsi @@ -2,8 +2,10 @@ #ifdef CONFIG_MACH_SUN50I_H6 #define BL31_ADDR 0x104000 +#define SCP_ADDR 0x114000 #else #define BL31_ADDR 0x44000 +#define SCP_ADDR 0x50000 #endif / { @@ -59,6 +61,19 @@ }; }; + 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"; @@ -72,7 +87,7 @@ @config-SEQ { description = "NAME"; firmware = "atf"; - loadables = "uboot"; + loadables = "scp", "uboot"; fdt = "fdt-SEQ"; }; }; |