MIPS: Octeon: Export prom_putchar().

The forthcoming watchdog driver will use it.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1499/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index 7216fbd5d79d..041326e34f4d 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -687,7 +687,10 @@ void __init plat_mem_setup(void)
                       "cvmx_bootmem_phy_alloc\n");
 }
 
-
+/*
+ * Emit one character to the boot UART.  Exported for use by the
+ * watchdog timer.
+ */
 int prom_putchar(char c)
 {
         uint64_t lsrval;
@@ -701,6 +704,7 @@ int prom_putchar(char c)
         cvmx_write_csr(CVMX_MIO_UARTX_THR(octeon_uart), c & 0xffull);
         return 1;
 }
+EXPORT_SYMBOL(prom_putchar);
 
 void prom_free_prom_memory(void)
 {