Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / nios2 / cpu / cpu.c

diff --git a/qemu/roms/u-boot/arch/nios2/cpu/cpu.c b/qemu/roms/u-boot/arch/nios2/cpu/cpu.c
new file mode 100644 (file)
index 0000000..e0dcbc2
--- /dev/null
+++ b/qemu/roms/u-boot/arch/nios2/cpu/cpu.c
@@ -0,0 +1,49 @@
+/*
+ * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <nios2.h>
+#include <nios2-io.h>
+#include <asm/cache.h>
+
+#if defined (CONFIG_SYS_NIOS_SYSID_BASE)
+extern void display_sysid (void);
+#endif /* CONFIG_SYS_NIOS_SYSID_BASE */
+
+int checkcpu (void)
+{
+       printf ("CPU   : Nios-II\n");
+#if !defined(CONFIG_SYS_NIOS_SYSID_BASE)
+       printf ("SYSID : <unknown>\n");
+#else
+       display_sysid ();
+#endif
+       return (0);
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       disable_interrupts();
+       /* indirect call to go beyond 256MB limitation of toolchain */
+       nios2_callr(CONFIG_SYS_RESET_ADDR);
+       return 0;
+}
+
+int dcache_status(void)
+{
+       return 1;
+}
+
+void dcache_enable(void)
+{
+       flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
+}
+
+void dcache_disable(void)
+{
+       flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
+}