summaryrefslogtreecommitdiff
path: root/arch/arm/plat-spear/include/plat/uncompress.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/plat-spear/include/plat/uncompress.h')
-rw-r--r--arch/arm/plat-spear/include/plat/uncompress.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm/plat-spear/include/plat/uncompress.h b/arch/arm/plat-spear/include/plat/uncompress.h
new file mode 100644
index 000000000000..99ba6789cc97
--- /dev/null
+++ b/arch/arm/plat-spear/include/plat/uncompress.h
@@ -0,0 +1,43 @@
+/*
+ * arch/arm/plat-spear/include/plat/uncompress.h
+ *
+ * Serial port stubs for kernel decompress status messages
+ *
+ * Copyright (C) 2009 ST Microelectronics
+ * Viresh Kumar<viresh.kumar@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/io.h>
+#include <linux/amba/serial.h>
+#include <mach/spear.h>
+
+#ifndef __PLAT_UNCOMPRESS_H
+#define __PLAT_UNCOMPRESS_H
+/*
+ * This does not append a newline
+ */
+static inline void putc(int c)
+{
+ void __iomem *base = (void __iomem *)SPEAR_DBG_UART_BASE;
+
+ while (readl(base + UART01x_FR) & UART01x_FR_TXFF)
+ barrier();
+
+ writel(c, base + UART01x_DR);
+}
+
+static inline void flush(void)
+{
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
+
+#endif /* __PLAT_UNCOMPRESS_H */