GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/drivers/pci/pcie_fsl_fixup.c

@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0+ OR X11
+/*
+ * Copyright 2019 NXP
+ *
+ * PCIe Kernel DT fixup of DM U-Boot driver for Freescale PowerPC SoCs
+ * Author: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
+ */
+
+#include <common.h>
+#ifdef CONFIG_OF_BOARD_SETUP
+#include <dm.h>
+#include <fdt_support.h>
+#include <asm/fsl_pci.h>
+#include <linux/libfdt.h>
+#include "pcie_fsl.h"
+
+static void ft_fsl_pcie_setup(void *blob, struct fsl_pcie *pcie)
+{
+	struct pci_controller *hose = dev_get_uclass_priv(pcie->bus);
+	fdt_addr_t regs_addr;
+	int off;
+
+	regs_addr = dev_read_addr(pcie->bus);
+	off = fdt_node_offset_by_compat_reg(blob, FSL_PCIE_COMPAT, regs_addr);
+	if (off < 0) {
+		printf("%s: Fail to find PCIe node@0x%pa\n",
+		       FSL_PCIE_COMPAT, &regs_addr);
+		return;
+	}
+
+	if (!hose || !pcie->enabled)
+		fdt_del_node(blob, off);
+	else
+		fdt_pci_dma_ranges(blob, off, hose);
+}
+
+/* Fixup Kernel DT for PCIe */
+void pci_of_setup(void *blob, bd_t *bd)
+{
+	struct fsl_pcie *pcie;
+
+	list_for_each_entry(pcie, &fsl_pcie_list, list)
+		ft_fsl_pcie_setup(blob, pcie);
+}
+
+#else
+void pci_of_setup(void *blob, bd_t *bd)
+{
+}
+#endif