From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 11:13:47 +0200
Subject: Adding upstream version 2.8.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 plat/hisilicon/hikey/hisi_pwrc.c | 104 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 plat/hisilicon/hikey/hisi_pwrc.c

(limited to 'plat/hisilicon/hikey/hisi_pwrc.c')

diff --git a/plat/hisilicon/hikey/hisi_pwrc.c b/plat/hisilicon/hikey/hisi_pwrc.c
new file mode 100644
index 0000000..e2e3db7
--- /dev/null
+++ b/plat/hisilicon/hikey/hisi_pwrc.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <platform_def.h>
+
+#include <common/debug.h>
+#include <lib/mmio.h>
+
+#include <hi6220_regs_acpu.h>
+#include <hi6220_regs_ao.h>
+#include <hisi_ipc.h>
+#include <hisi_pwrc.h>
+#include <hisi_sram_map.h>
+
+#define CLUSTER_CORE_COUNT		(4)
+#define CLUSTER_CORE_MASK		((1 << CLUSTER_CORE_COUNT) - 1)
+
+void hisi_pwrc_set_core_bx_addr(unsigned int core, unsigned int cluster,
+				uintptr_t entry_point)
+{
+	uintptr_t *core_entry = (uintptr_t *)PWRCTRL_ACPU_ASM_D_ARM_PARA_AD;
+	unsigned int i;
+
+	if (!core_entry) {
+		INFO("%s: core entry point is null!\n", __func__);
+		return;
+	}
+
+	i = cluster * CLUSTER_CORE_COUNT + core;
+	mmio_write_64((uintptr_t)(core_entry + i), entry_point);
+}
+
+void hisi_pwrc_set_cluster_wfi(unsigned int cluster)
+{
+	unsigned int reg = 0;
+
+	if (cluster == 0) {
+		reg = mmio_read_32(ACPU_SC_SNOOP_PWD);
+		reg |= PD_DETECT_START0;
+		mmio_write_32(ACPU_SC_SNOOP_PWD, reg);
+	} else if (cluster == 1) {
+		reg = mmio_read_32(ACPU_SC_SNOOP_PWD);
+		reg |= PD_DETECT_START1;
+		mmio_write_32(ACPU_SC_SNOOP_PWD, reg);
+	}
+}
+
+void hisi_pwrc_enable_debug(unsigned int core, unsigned int cluster)
+{
+	unsigned int val, enable;
+
+	enable = 1U << (core + PDBGUP_CLUSTER1_SHIFT * cluster);
+
+	/* Enable debug module */
+	val = mmio_read_32(ACPU_SC_PDBGUP_MBIST);
+	mmio_write_32(ACPU_SC_PDBGUP_MBIST, val | enable);
+	do {
+		/* RAW barrier */
+		val = mmio_read_32(ACPU_SC_PDBGUP_MBIST);
+	} while (!(val & enable));
+}
+
+int hisi_pwrc_setup(void)
+{
+	unsigned int reg, sec_entrypoint;
+	extern char pm_asm_code[], pm_asm_code_end[];
+	extern char v7_asm[], v7_asm_end[];
+
+	sec_entrypoint = PWRCTRL_ACPU_ASM_CODE_BASE;
+	mmio_write_32(ACPU_SC_CPUx_RVBARADDR(0), sec_entrypoint >> 2);
+	mmio_write_32(ACPU_SC_CPUx_RVBARADDR(1), sec_entrypoint >> 2);
+	mmio_write_32(ACPU_SC_CPUx_RVBARADDR(2), sec_entrypoint >> 2);
+	mmio_write_32(ACPU_SC_CPUx_RVBARADDR(3), sec_entrypoint >> 2);
+	mmio_write_32(ACPU_SC_CPUx_RVBARADDR(4), sec_entrypoint >> 2);
+	mmio_write_32(ACPU_SC_CPUx_RVBARADDR(5), sec_entrypoint >> 2);
+	mmio_write_32(ACPU_SC_CPUx_RVBARADDR(6), sec_entrypoint >> 2);
+	mmio_write_32(ACPU_SC_CPUx_RVBARADDR(7), sec_entrypoint >> 2);
+
+	memset((void *)PWRCTRL_ACPU_ASM_SPACE_ADDR, 0, 0x400);
+	memcpy((void *)PWRCTRL_ACPU_ASM_SPACE_ADDR, (void *)v7_asm,
+	       v7_asm_end - v7_asm);
+
+	memcpy((void *)PWRCTRL_ACPU_ASM_CODE_BASE, (void *)pm_asm_code,
+	       pm_asm_code_end - pm_asm_code);
+
+	reg = mmio_read_32(AO_SC_SYS_CTRL1);
+	/* Remap SRAM address for ACPU */
+	reg |= AO_SC_SYS_CTRL1_REMAP_SRAM_AARM |
+	       AO_SC_SYS_CTRL1_REMAP_SRAM_AARM_MSK;
+
+	/* Enable reset signal for watchdog */
+	reg |= AO_SC_SYS_CTRL1_AARM_WD_RST_CFG |
+	       AO_SC_SYS_CTRL1_AARM_WD_RST_CFG_MSK;
+	mmio_write_32(AO_SC_SYS_CTRL1, reg);
+
+	return 0;
+}
-- 
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