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

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
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+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2016-2018 Intel Corporation <www.intel.com>
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/system_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct socfpga_system_manager *sysmgr_regs =
+	(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
+
+/*
+ * Configure all the pin muxes
+ */
+void sysmgr_pinmux_init(void)
+{
+	populate_sysmgr_pinmux();
+	populate_sysmgr_fpgaintf_module();
+}
+
+/*
+ * Populate the value for SYSMGR.FPGAINTF.MODULE based on pinmux setting.
+ * The value is not wrote to SYSMGR.FPGAINTF.MODULE but
+ * CONFIG_SYSMGR_ISWGRP_HANDOFF.
+ */
+void populate_sysmgr_fpgaintf_module(void)
+{
+	u32 handoff_val = 0;
+
+	/* Enable the signal for those HPS peripherals that use FPGA. */
+	if (readl(&sysmgr_regs->nandusefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_NAND;
+	if (readl(&sysmgr_regs->sdmmcusefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_SDMMC;
+	if (readl(&sysmgr_regs->spim0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_SPIM0;
+	if (readl(&sysmgr_regs->spim1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_SPIM1;
+	writel(handoff_val, &sysmgr_regs->fpgaintf_en_2);
+
+	handoff_val = 0;
+	if (readl(&sysmgr_regs->rgmii0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_EMAC0;
+	if (readl(&sysmgr_regs->rgmii1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_EMAC1;
+	if (readl(&sysmgr_regs->rgmii2usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_EMAC2;
+	writel(handoff_val, &sysmgr_regs->fpgaintf_en_3);
+}
+
+/*
+ * Configure all the pin muxes
+ */
+void populate_sysmgr_pinmux(void)
+{
+	const u32 *sys_mgr_table_u32;
+	unsigned int len, i;
+
+	/* setup the pin sel */
+	sysmgr_pinmux_table_sel(&sys_mgr_table_u32, &len);
+	for (i = 0; i < len; i = i + 2) {
+		writel(sys_mgr_table_u32[i + 1],
+		       sys_mgr_table_u32[i] + (u8 *)&sysmgr_regs->pinsel0[0]);
+	}
+
+	/* setup the pin ctrl */
+	sysmgr_pinmux_table_ctrl(&sys_mgr_table_u32, &len);
+	for (i = 0; i < len; i = i + 2) {
+		writel(sys_mgr_table_u32[i + 1],
+		       sys_mgr_table_u32[i] + (u8 *)&sysmgr_regs->ioctrl0[0]);
+	}
+
+	/* setup the fpga use */
+	sysmgr_pinmux_table_fpga(&sys_mgr_table_u32, &len);
+	for (i = 0; i < len; i = i + 2) {
+		writel(sys_mgr_table_u32[i + 1],
+		       sys_mgr_table_u32[i] +
+		       (u8 *)&sysmgr_regs->rgmii0usefpga);
+	}
+
+	/* setup the IO delay */
+	sysmgr_pinmux_table_delay(&sys_mgr_table_u32, &len);
+	for (i = 0; i < len; i = i + 2) {
+		writel(sys_mgr_table_u32[i + 1],
+		       sys_mgr_table_u32[i] + (u8 *)&sysmgr_regs->iodelay0[0]);
+	}
+}