Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / post / board / lwmon5 / dsp.c

diff --git a/qemu/roms/u-boot/post/board/lwmon5/dsp.c b/qemu/roms/u-boot/post/board/lwmon5/dsp.c
new file mode 100644 (file)
index 0000000..2f55f01
--- /dev/null
+++ b/qemu/roms/u-boot/post/board/lwmon5/dsp.c
@@ -0,0 +1,54 @@
+/*
+ * (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com
+ *
+ * Developed for DENX Software Engineering GmbH
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+
+#include <post.h>
+
+#if CONFIG_POST & CONFIG_SYS_POST_DSP
+#include <asm/io.h>
+
+/* This test verifies DSP status bits in FPGA */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define DSP_STATUS_REG         0xC4000008
+#define FPGA_STATUS_REG                0xC400000C
+
+int dsp_post_test(int flags)
+{
+       uint   old_value;
+       uint   read_value;
+       int    ret;
+
+       /* momorize fpga status */
+       old_value = in_be32((void *)FPGA_STATUS_REG);
+       /* enable outputs */
+       out_be32((void *)FPGA_STATUS_REG, 0x30);
+
+       /* generate sync signal */
+       out_be32((void *)DSP_STATUS_REG, 0x300);
+       udelay(5);
+       out_be32((void *)DSP_STATUS_REG, 0);
+       udelay(500);
+
+       /* read status */
+       ret = 0;
+       read_value = in_be32((void *)DSP_STATUS_REG) & 0x3;
+       if (read_value != 0x03) {
+               post_log("\nDSP status read %08X\n", read_value);
+               ret = 1;
+       }
+
+       /* restore fpga status */
+       out_be32((void *)FPGA_STATUS_REG, old_value);
+
+       return ret;
+}
+
+#endif /* CONFIG_POST & CONFIG_SYS_POST_DSP */