Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / post / board / pdm360ng / coproc_com.c

diff --git a/qemu/roms/u-boot/post/board/pdm360ng/coproc_com.c b/qemu/roms/u-boot/post/board/pdm360ng/coproc_com.c
new file mode 100644 (file)
index 0000000..e11b69b
--- /dev/null
+++ b/qemu/roms/u-boot/post/board/pdm360ng/coproc_com.c
@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2010 DENX Software Engineering,
+ * Anatolij Gustschin, agust@denx.de.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+/*
+ * Co-Processor communication POST
+ */
+#include <common.h>
+#include <post.h>
+#include <serial.h>
+
+/*
+ * Actually the termination sequence of the coprocessor
+ * commands is "\r\n" (CR LF), but here we use a side effect of
+ * the putc() routine of the serial driver which checks for LF
+ * and sends CR before sending LF. Therefore the termination
+ * sequence in the command below is only "\n".
+ * "alive" string is the coprocessor response for ping command
+ * and not a command, therefore it is terminated with "\r\n".
+ */
+char alive[] = "$AL;38\r\n";
+char ping[] = "$PI;2C\n";
+
+int coprocessor_post_test(int flags)
+{
+       struct stdio_dev *cop_port;
+       int ret;
+       char buf[10];
+
+       /* Test IO Coprocessor communication */
+       cop_port = open_port(4, CONFIG_SYS_PDM360NG_COPROC_BAUDRATE);
+       if (!cop_port)
+               return -1;
+
+       write_port(cop_port, ping);
+       udelay(CONFIG_SYS_PDM360NG_COPROC_READ_DELAY);
+
+       memset(buf, 0, sizeof(buf));
+       ret = read_port(cop_port, buf, sizeof(buf));
+       close_port(4);
+       if (ret <= 0) {
+               post_log("Error: Can't read IO Coprocessor port.\n");
+               return -1;
+       }
+
+       if (strcmp(buf, alive)) {
+               post_log("Error: IO-Cop. resp.: %s\n", buf);
+               return -1;
+       }
+
+       /* Test WD Coprocessor communication */
+       cop_port = open_port(1, CONFIG_SYS_PDM360NG_COPROC_BAUDRATE);
+       if (!cop_port) {
+               post_log("Error: Can't open WD Coprocessor port.\n");
+               return -1;
+       }
+
+       write_port(cop_port, ping);
+       udelay(CONFIG_SYS_PDM360NG_COPROC_READ_DELAY);
+
+       memset(buf, 0, sizeof(buf));
+       ret = read_port(cop_port, buf, sizeof(buf));
+       close_port(1);
+       if (ret <= 0) {
+               post_log("Error: Can't read WD Coprocessor port.\n");
+               return -1;
+       }
+
+       if (strcmp(buf, alive)) {
+               post_log("Error: WD-Cop. resp.: %s\n", buf);
+               return -1;
+       }
+
+       return 0;
+}