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64 lines
1.8 KiB
Diff
64 lines
1.8 KiB
Diff
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From aefe751d6f23c9d526bca447c6c28da97e45e528 Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Sat, 17 Apr 2021 13:33:54 -0500
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Subject: [PATCH 40/90] sunxi: Enable support for SCP firmware on H3
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Now that issues with the BROM have been sorted out, we can implement
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PSCI system suspend on H3 by delegating to SCP firmware. Let's start by
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including the firmware in the FIT image and starting the coprocessor if
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valid firmware is loaded.
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Signed-off-by: Samuel Holland <samuel@sholland.org>
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---
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arch/arm/dts/sunxi-u-boot.dtsi | 1 +
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board/sunxi/board.c | 8 ++++++++
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include/configs/sun8i.h | 3 +++
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3 files changed, 12 insertions(+)
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--- a/arch/arm/dts/sunxi-u-boot.dtsi
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+++ b/arch/arm/dts/sunxi-u-boot.dtsi
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@@ -9,6 +9,7 @@
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#if defined(CONFIG_MACH_SUN8I_H3)
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#ifdef CONFIG_ARMV7_PSCI
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#define RESUME_ADDR SUNXI_RESUME_BASE
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+#define SCP_ADDR SUNXI_SCP_BASE
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#endif
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#elif defined(CONFIG_MACH_SUN50I) || defined(CONFIG_MACH_SUN50I_H5)
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#define BL31_ADDR 0x00044000
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--- a/board/sunxi/board.c
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+++ b/board/sunxi/board.c
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@@ -19,6 +19,7 @@
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#include <init.h>
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#include <log.h>
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#include <mmc.h>
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+#include <remoteproc.h>
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#include <axp_pmic.h>
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#include <generic-phy.h>
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#include <phy-sun4i-usb.h>
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@@ -867,6 +868,13 @@ int board_late_init(void)
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usb_ether_init();
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#endif
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+#ifdef CONFIG_REMOTEPROC_SUN6I_AR100
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+ if (!rproc_load(0, SUNXI_SCP_BASE, SUNXI_SCP_MAX_SIZE)) {
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+ puts("Starting SCP...\n");
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+ rproc_start(0);
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+ }
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+#endif
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+
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return 0;
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}
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--- a/include/configs/sun8i.h
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+++ b/include/configs/sun8i.h
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@@ -12,6 +12,9 @@
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CONFIG_ARMV7_SECURE_MAX_SIZE)
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#define SUNXI_RESUME_SIZE 1024
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+#define SUNXI_SCP_BASE (SUNXI_RESUME_BASE + SUNXI_RESUME_SIZE)
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+#define SUNXI_SCP_MAX_SIZE (16 * 1024)
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+
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#include <configs/sunxi-common.h>
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#endif /* __CONFIG_H */
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