Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / nios2 / lib / cache.S

diff --git a/qemu/roms/u-boot/arch/nios2/lib/cache.S b/qemu/roms/u-boot/arch/nios2/lib/cache.S
new file mode 100644 (file)
index 0000000..683f005
--- /dev/null
+++ b/qemu/roms/u-boot/arch/nios2/lib/cache.S
@@ -0,0 +1,68 @@
+/*
+ * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <config.h>
+
+       .text
+
+       .global flush_dcache
+
+flush_dcache:
+       add     r5, r5, r4
+       movhi   r8, %hi(CONFIG_SYS_DCACHELINE_SIZE)
+       ori     r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE)
+0:     flushd  0(r4)
+       add     r4, r4, r8
+       bltu    r4, r5, 0b
+       ret
+
+
+       .global flush_icache
+
+flush_icache:
+       add     r5, r5, r4
+       movhi   r8, %hi(CONFIG_SYS_ICACHELINE_SIZE)
+       ori     r8, r8, %lo(CONFIG_SYS_ICACHELINE_SIZE)
+1:     flushi  r4
+       add     r4, r4, r8
+       bltu    r4, r5, 1b
+       ret
+
+       .global flush_dcache_range
+
+flush_dcache_range:
+       movhi   r8, %hi(CONFIG_SYS_DCACHELINE_SIZE)
+       ori     r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE)
+0:     flushd  0(r4)
+       add     r4, r4, r8
+       bltu    r4, r5, 0b
+       ret
+
+       .global flush_cache
+
+flush_cache:
+       add     r5, r5, r4
+       mov     r9, r4
+       mov     r10, r5
+
+       movhi   r8, %hi(CONFIG_SYS_DCACHELINE_SIZE)
+       ori     r8, r8, %lo(CONFIG_SYS_DCACHELINE_SIZE)
+0:     flushd  0(r4)
+       add     r4, r4, r8
+       bltu    r4, r5, 0b
+
+       mov     r4, r9
+       mov     r5, r10
+       movhi   r8, %hi(CONFIG_SYS_ICACHELINE_SIZE)
+       ori     r8, r8, %lo(CONFIG_SYS_ICACHELINE_SIZE)
+1:     flushi  r4
+       add     r4, r4, r8
+       bltu    r4, r5, 1b
+
+       sync
+       flushp
+       ret