1 files changed, 39 insertions, 1 deletions

diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index 6a9d24e5ed8e..1a40f16b66c8 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -190,6 +190,24 @@ static struct clk *periph_clocks[] __initdata = {
         // irq0
 };
 
+static struct clk_lookup periph_clocks_lookups[] = {
+        CLKDEV_CON_DEV_ID("hclk", "atmel_usba_udc.0", &utmi_clk),
+        CLKDEV_CON_DEV_ID("pclk", "atmel_usba_udc.0", &udphs_clk),
+        CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
+        CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
+        CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
+        CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
+        CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
+};
+
+static struct clk_lookup usart_clocks_lookups[] = {
+        CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
+        CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
+        CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
+        CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
+        CLKDEV_CON_DEV_ID("usart", "atmel_usart.4", &usart3_clk),
+};
+
 /*
  * The two programmable clocks.
  * You must configure pin multiplexing to bring these signals out.
@@ -214,10 +232,27 @@ static void __init at91sam9rl_register_clocks(void)
         for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
                 clk_register(periph_clocks[i]);
 
+        clkdev_add_table(periph_clocks_lookups,
+                         ARRAY_SIZE(periph_clocks_lookups));
+        clkdev_add_table(usart_clocks_lookups,
+                         ARRAY_SIZE(usart_clocks_lookups));
+
         clk_register(&pck0);
         clk_register(&pck1);
 }
 
+static struct clk_lookup console_clock_lookup;
+
+void __init at91sam9rl_set_console_clock(int id)
+{
+        if (id >= ARRAY_SIZE(usart_clocks_lookups))
+                return;
+
+        console_clock_lookup.con_id = "usart";
+        console_clock_lookup.clk = usart_clocks_lookups[id].clk;
+        clkdev_add(&console_clock_lookup);
+}
+
 /* --------------------------------------------------------------------
  *  GPIO
  * -------------------------------------------------------------------- */
@@ -252,7 +287,7 @@ static void at91sam9rl_poweroff(void)
  *  AT91SAM9RL processor initialization
  * -------------------------------------------------------------------- */
 
-void __init at91sam9rl_initialize(unsigned long main_clock)
+void __init at91sam9rl_map_io(void)
 {
         unsigned long cidr, sram_size;
 
@@ -275,7 +310,10 @@ void __init at91sam9rl_initialize(unsigned long main_clock)
 
         /* Map SRAM */
         iotable_init(at91sam9rl_sram_desc, ARRAY_SIZE(at91sam9rl_sram_desc));
+}
 
+void __init at91sam9rl_initialize(unsigned long main_clock)
+{
         at91_arch_reset = at91sam9_alt_reset;
         pm_power_off = at91sam9rl_poweroff;
         at91_extern_irq = (1 << AT91SAM9RL_ID_IRQ0);