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Diffstat (limited to 'kernel/arch/arm/mach-iop32x/include/mach/uncompress.h')
-rw-r--r--kernel/arch/arm/mach-iop32x/include/mach/uncompress.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-iop32x/include/mach/uncompress.h b/kernel/arch/arm/mach-iop32x/include/mach/uncompress.h
new file mode 100644
index 000000000..b3d45fd36
--- /dev/null
+++ b/kernel/arch/arm/mach-iop32x/include/mach/uncompress.h
@@ -0,0 +1,38 @@
+/*
+ * arch/arm/mach-iop32x/include/mach/uncompress.h
+ */
+
+#include <asm/types.h>
+#include <asm/mach-types.h>
+#include <linux/serial_reg.h>
+#include <mach/hardware.h>
+
+volatile u8 *uart_base;
+
+#define TX_DONE (UART_LSR_TEMT | UART_LSR_THRE)
+
+static inline void putc(char c)
+{
+ while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
+ barrier();
+ uart_base[UART_TX] = c;
+}
+
+static inline void flush(void)
+{
+}
+
+static __inline__ void __arch_decomp_setup(unsigned long arch_id)
+{
+ if (machine_is_iq80321())
+ uart_base = (volatile u8 *)IQ80321_UART;
+ else if (machine_is_iq31244() || machine_is_em7210())
+ uart_base = (volatile u8 *)IQ31244_UART;
+ else
+ uart_base = (volatile u8 *)0xfe800000;
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup() __arch_decomp_setup(arch_id)