1 files changed, 60 insertions, 0 deletions
diff --git a/board/phytium/pe2201/pcie.c b/board/phytium/pe2201/pcie.c
new file mode 100644
index 00000000000..34c38d2aee4
--- /dev/null
+++ b/board/phytium/pe2201/pcie.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2023, Phytium Technology Co., Ltd.
+ * lixinde          <lixinde@phytium.com.cn>
+ * weichangzheng    <weichangzheng@phytium.com.cn>
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <linux/arm-smccc.h>
+#include <init.h>
+#include "cpu.h"
+
+struct pcu_ctr {
+	u32 base_config[4];
+	u32 equalization[4];
+	u8 rev[72];
+} __attribute((aligned(4)));
+
+struct pcu_config {
+	u32 magic;
+	u32 version;
+	u32 size;
+	u8 rev1[4];
+	u32 independent_tree;
+	u32 base_cfg;
+	u8 rev2[16];
+	struct pcu_ctr ctr_cfg[2];
+} __attribute((aligned(4)));
+
+struct pcu_config const peu_base_info = {
+	.magic = PARAMETER_PCIE_MAGIC,
+	.version = 0x4,
+	.size = 0x100,
+	.independent_tree = CFG_INDEPENDENT_TREE,
+	.base_cfg = ((PCI_PEU1 | (X1X1X1X1 << 1)) << PEU1_OFFSET | (PCI_PEU0 | (X1X1 << 1))),
+	.ctr_cfg[0].base_config[0] = (EP_MODE << PEU_C_OFFSET_MODE) | (GEN3 << PEU_C_OFFSET_SPEED),
+	.ctr_cfg[0].base_config[1] = (EP_MODE << PEU_C_OFFSET_MODE) | (GEN3 << PEU_C_OFFSET_SPEED),
+	.ctr_cfg[0].base_config[2] = (EP_MODE << PEU_C_OFFSET_MODE) | (GEN3 << PEU_C_OFFSET_SPEED),
+	.ctr_cfg[1].base_config[0] = (EP_MODE << PEU_C_OFFSET_MODE) | (GEN3 << PEU_C_OFFSET_SPEED),
+	.ctr_cfg[1].base_config[1] = (EP_MODE << PEU_C_OFFSET_MODE) | (GEN3 << PEU_C_OFFSET_SPEED),
+	.ctr_cfg[1].base_config[2] = (EP_MODE << PEU_C_OFFSET_MODE) | (GEN3 << PEU_C_OFFSET_SPEED),
+	.ctr_cfg[0].equalization[0] = 0x7,
+	.ctr_cfg[0].equalization[1] = 0x7,
+	.ctr_cfg[0].equalization[2] = 0x7,
+	.ctr_cfg[1].equalization[0] = 0x7,
+	.ctr_cfg[1].equalization[1] = 0x7,
+	.ctr_cfg[1].equalization[2] = 0x7,
+};
+
+void pcie_init(void)
+{
+	u8 buffer[0x100];
+	struct arm_smccc_res res;
+
+	memcpy(buffer, &peu_base_info, sizeof(peu_base_info));
+	arm_smccc_smc(CPU_INIT_PCIE, 0, (u64)buffer, 0, 0, 0, 0, 0, &res);
+	if (res.a0 != 0)
+		panic("PCIE init failed :0x%lx\n", res.a0);
+}