make printhex lowercase

diff --git a/arch/arm/cpu/arm926ejs/mx28/debug.c b/arch/arm/cpu/arm926ejs/mx28/debug.c
index a88f1af45107502f67479efe2eb4472a5efa60e6..8444ba78df4c3c7d0831a0cc42b2c659c1274878 100644 (file)
--- a/arch/arm/cpu/arm926ejs/mx28/debug.c
+++ b/arch/arm/cpu/arm926ejs/mx28/debug.c
@@ -32,7 +32,7 @@ void printhex(int data)
                c = data >> (i * 4);
                c &= 0xf;
                if (c > 9)
-                       serial_putc(c - 10 + 'A');
+                       serial_putc(c - 10 + 'a');
                else
                        serial_putc(c + '0');
        }