ARM: mxs: Change duart device to use amba-pl011

The mxs duart is actually an amba-pl011 device. This commit changes
the duart device code to dynamically allocate amba-pl011 device,
so that drivers/serial/amba-pl011.c can be used on mxs.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 10 insertions, 1 deletions

diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c
index fbb8d7424d0c..fcac1a5663b4 100644
--- a/arch/arm/mach-mxs/clock-mx28.c
+++ b/arch/arm/mach-mxs/clock-mx28.c
@@ -602,7 +602,10 @@ _DEFINE_CLOCK(fec_clk, ENET, DISABLE, &hbus_clk);
         },
 
 static struct clk_lookup lookups[] = {
-        _REGISTER_CLOCK("mxs-duart.0", NULL, uart_clk)
+        /* for amba bus driver */
+        _REGISTER_CLOCK("duart", "apb_pclk", xbus_clk)
+        /* for amba-pl011 driver */
+        _REGISTER_CLOCK("duart", NULL, uart_clk)
         _REGISTER_CLOCK("imx28-fec.0", NULL, fec_clk)
         _REGISTER_CLOCK("imx28-fec.1", NULL, fec_clk)
         _REGISTER_CLOCK("fec.0", NULL, fec_clk)
@@ -728,6 +731,12 @@ int __init mx28_clocks_init(void)
 {
         clk_misc_init();
 
+        clk_enable(&cpu_clk);
+        clk_enable(&hbus_clk);
+        clk_enable(&xbus_clk);
+        clk_enable(&emi_clk);
+        clk_enable(&uart_clk);
+
         clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         mxs_timer_init(&clk32k_clk, MX28_INT_TIMER0);