Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arc / cpu / arc700 / cpu.c

diff --git a/qemu/roms/u-boot/arch/arc/cpu/arc700/cpu.c b/qemu/roms/u-boot/arch/arc/cpu/arc700/cpu.c
new file mode 100644 (file)
index 0000000..50634b8
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arc/cpu/arc700/cpu.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arcregs.h>
+#include <asm/cache.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int arch_cpu_init(void)
+{
+#ifdef CONFIG_SYS_ICACHE_OFF
+       icache_disable();
+#else
+       icache_enable();
+       invalidate_icache_all();
+#endif
+
+       flush_dcache_all();
+#ifdef CONFIG_SYS_DCACHE_OFF
+       dcache_disable();
+#else
+       dcache_enable();
+#endif
+       timer_init();
+
+/* In simulation (ISS) "CHIPID" and "ARCNUM" are all "ff" */
+       if ((read_aux_reg(ARC_AUX_IDENTITY) & 0xffffff00) == 0xffffff00)
+               gd->arch.running_on_hw = 0;
+       else
+               gd->arch.running_on_hw = 1;
+
+       gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
+       gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
+
+       return 0;
+}
+
+int arch_early_init_r(void)
+{
+       gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+       gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
+       return 0;
+}