Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mach-mmp / include / mach / uncompress.h

diff --git a/kernel/arch/arm/mach-mmp/include/mach/uncompress.h b/kernel/arch/arm/mach-mmp/include/mach/uncompress.h
new file mode 100644 (file)
index 0000000..8890fa8
--- /dev/null
+++ b/kernel/arch/arm/mach-mmp/include/mach/uncompress.h
@@ -0,0 +1,45 @@
+/*
+ * arch/arm/mach-mmp/include/mach/uncompress.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/serial_reg.h>
+#include <mach/addr-map.h>
+#include <asm/mach-types.h>
+
+#define UART1_BASE     (APB_PHYS_BASE + 0x36000)
+#define UART2_BASE     (APB_PHYS_BASE + 0x17000)
+#define UART3_BASE     (APB_PHYS_BASE + 0x18000)
+
+volatile unsigned long *UART;
+
+static inline void putc(char c)
+{
+       /* UART enabled? */
+       if (!(UART[UART_IER] & UART_IER_UUE))
+               return;
+
+       while (!(UART[UART_LSR] & UART_LSR_THRE))
+               barrier();
+
+       UART[UART_TX] = c;
+}
+
+/*
+ * This does not append a newline
+ */
+static inline void flush(void)
+{
+}
+
+static inline void arch_decomp_setup(void)
+{
+       /* default to UART2 */
+       UART = (unsigned long *)UART2_BASE;
+
+       if (machine_is_avengers_lite())
+               UART = (unsigned long *)UART3_BASE;
+}