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) 2013-2017 Altera Corporation <www.altera.com>
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/system_manager.h>
+#include <asm/arch/fpga_manager.h>
+
+static struct socfpga_system_manager *sysmgr_regs =
+	(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
+
+/*
+ * 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.
+ */
+static void populate_sysmgr_fpgaintf_module(void)
+{
+	u32 handoff_val = 0;
+
+	/* ISWGRP_HANDOFF_FPGAINTF */
+	writel(0, &sysmgr_regs->iswgrp_handoff[2]);
+
+	/* 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->rgmii1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_EMAC1;
+	if (readl(&sysmgr_regs->sdmmcusefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_SDMMC;
+	if (readl(&sysmgr_regs->rgmii0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+		handoff_val |= SYSMGR_FPGAINTF_EMAC0;
+	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;
+
+	/* populate (not writing) the value for SYSMGR.FPGAINTF.MODULE
+	based on pinmux setting */
+	setbits_le32(&sysmgr_regs->iswgrp_handoff[2], handoff_val);
+
+	handoff_val = readl(&sysmgr_regs->iswgrp_handoff[2]);
+	if (fpgamgr_test_fpga_ready()) {
+		/* Enable the required signals only */
+		writel(handoff_val, &sysmgr_regs->fpgaintfgrp_module);
+	}
+}
+
+/*
+ * Configure all the pin muxes
+ */
+void sysmgr_pinmux_init(void)
+{
+	u32 regs = (u32)&sysmgr_regs->emacio[0];
+	const u8 *sys_mgr_init_table;
+	unsigned int len;
+	int i;
+
+	sysmgr_get_pinmux_table(&sys_mgr_init_table, &len);
+
+	for (i = 0; i < len; i++) {
+		writel(sys_mgr_init_table[i], regs);
+		regs += sizeof(regs);
+	}
+
+	populate_sysmgr_fpgaintf_module();
+}
+
+/*
+ * This bit allows the bootrom to configure the IOs after a warm reset.
+ */
+void sysmgr_config_warmrstcfgio(int enable)
+{
+	if (enable)
+		setbits_le32(&sysmgr_regs->romcodegrp_ctrl,
+			     SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO);
+	else
+		clrbits_le32(&sysmgr_regs->romcodegrp_ctrl,
+			     SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO);
+}