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

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2015 Atmel Corporation
+ *		      Wenyou Yang <wenyou.yang@atmel.com>
+ */
+
+#include <common.h>
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/arch/at91_sfr.h>
+
+#if defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D4)
+void redirect_int_from_saic_to_aic(void)
+{
+	struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
+	u32 key32;
+
+	if (!(readl(&sfr->aicredir) & ATMEL_SFR_AICREDIR_NSAIC)) {
+		key32 = readl(&sfr->sn1) ^ ATMEL_SFR_AICREDIR_KEY;
+		writel((key32 | ATMEL_SFR_AICREDIR_NSAIC), &sfr->aicredir);
+	}
+}
+
+void configure_2nd_sram_as_l2_cache(void)
+{
+	struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
+
+	writel(1, &sfr->l2cc_hramc);
+}
+#endif
+
+void configure_ddrcfg_input_buffers(bool open)
+{
+	struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
+
+	if (open)
+		writel(ATMEL_SFR_DDRCFG_FDQIEN | ATMEL_SFR_DDRCFG_FDQSIEN,
+		       &sfr->ddrcfg);
+	else
+		writel(0, &sfr->ddrcfg);
+}
+