Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/arch/nds32/include/asm/cache.h b/qemu/roms/u-boot/arch/nds32/include/asm/cache.h
new file mode 100644
index 000000000..9038821b4
--- /dev/null
+++ b/qemu/roms/u-boot/arch/nds32/include/asm/cache.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
+ * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_CACHE_H
+#define _ASM_CACHE_H
+
+/* cache */
+int	icache_status(void);
+void	icache_enable(void);
+void	icache_disable(void);
+int	dcache_status(void);
+void	dcache_enable(void);
+void	dcache_disable(void);
+
+#define DEFINE_GET_SYS_REG(reg) \
+	static inline unsigned long GET_##reg(void)		\
+	{							\
+		unsigned long val;				\
+		__asm__ volatile (				\
+		"mfsr %0, $"#reg : "=&r" (val) : : "memory"	\
+		);						\
+		return val;					\
+	}
+
+enum cache_t {ICACHE, DCACHE};
+DEFINE_GET_SYS_REG(ICM_CFG);
+DEFINE_GET_SYS_REG(DCM_CFG);
+#define ICM_CFG_OFF_ISZ	6	/* I-cache line size */
+#define ICM_CFG_MSK_ISZ	(0x7UL << ICM_CFG_OFF_ISZ)
+#define DCM_CFG_OFF_DSZ	6	/* D-cache line size */
+#define DCM_CFG_MSK_DSZ	(0x7UL << DCM_CFG_OFF_DSZ)
+
+/*
+ * The current upper bound for NDS32 L1 data cache line sizes is 32 bytes.
+ * We use that value for aligning DMA buffers unless the board config has
+ * specified an alternate cache line size.
+ */
+#ifdef CONFIG_SYS_CACHELINE_SIZE
+#define ARCH_DMA_MINALIGN	CONFIG_SYS_CACHELINE_SIZE
+#else
+#define ARCH_DMA_MINALIGN	32
+#endif
+
+#endif /* _ASM_CACHE_H */