Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / imgtec / malta / superio.c

diff --git a/qemu/roms/u-boot/board/imgtec/malta/superio.c b/qemu/roms/u-boot/board/imgtec/malta/superio.c
new file mode 100644 (file)
index 0000000..eaa14df
--- /dev/null
+++ b/qemu/roms/u-boot/board/imgtec/malta/superio.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2013 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * Setup code for the FDC37M817 super I/O controller
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+
+#define SIO_CONF_PORT          0x3f0
+#define SIO_DATA_PORT          0x3f1
+
+enum sio_conf_key {
+       SIOCONF_DEVNUM          = 0x07,
+       SIOCONF_ACTIVATE        = 0x30,
+       SIOCONF_ENTER_SETUP     = 0x55,
+       SIOCONF_BASE_HIGH       = 0x60,
+       SIOCONF_BASE_LOW        = 0x61,
+       SIOCONF_PRIMARY_INT     = 0x70,
+       SIOCONF_EXIT_SETUP      = 0xaa,
+       SIOCONF_MODE            = 0xf0,
+};
+
+static struct {
+       u8 key;
+       u8 data;
+} sio_config[] = {
+       /* tty0 */
+       { SIOCONF_DEVNUM,       0x04 },
+       { SIOCONF_BASE_HIGH,    0x03 },
+       { SIOCONF_BASE_LOW,     0xf8 },
+       { SIOCONF_MODE,         0x02 },
+       { SIOCONF_PRIMARY_INT,  0x04 },
+       { SIOCONF_ACTIVATE,     0x01 },
+
+       /* tty1 */
+       { SIOCONF_DEVNUM,       0x05 },
+       { SIOCONF_BASE_HIGH,    0x02 },
+       { SIOCONF_BASE_LOW,     0xf8 },
+       { SIOCONF_MODE,         0x02 },
+       { SIOCONF_PRIMARY_INT,  0x03 },
+       { SIOCONF_ACTIVATE,     0x01 },
+};
+
+void malta_superio_init(void *io_base)
+{
+       unsigned i;
+
+       /* enter config state */
+       writeb(SIOCONF_ENTER_SETUP, io_base + SIO_CONF_PORT);
+
+       /* configure peripherals */
+       for (i = 0; i < ARRAY_SIZE(sio_config); i++) {
+               writeb(sio_config[i].key, io_base + SIO_CONF_PORT);
+               writeb(sio_config[i].data, io_base + SIO_DATA_PORT);
+       }
+
+       /* exit config state */
+       writeb(SIOCONF_EXIT_SETUP, io_base + SIO_CONF_PORT);
+}