[AVR32] SMC configuration in clock cycles

This patch makes the SMC configuration take timings in clock cycles
instead of nanoseconds. A function to calculate timings in clock
cycles is added.

This patch removes the rounding troubles of the previous SMC
configuration method.

[hskinnemoen@atmel.com: fix atstk1002/atngw100 flash config]
Signed-off-by: Kristoffer Nyborg Gregertsen <gregerts@stud.ntnu.no>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/avr32/boards/atngw100/flash.c b/arch/avr32/boards/atngw100/flash.c
index f9b32a8eab9b..b07ae63aa548 100644
--- a/arch/avr32/boards/atngw100/flash.c
+++ b/arch/avr32/boards/atngw100/flash.c
@@ -15,7 +15,7 @@
 
 #include <asm/arch/smc.h>
 
-static struct smc_config flash_config __initdata = {
+static struct smc_timing flash_timing __initdata = {
         .ncs_read_setup         = 0,
         .nrd_setup              = 40,
         .ncs_write_setup        = 0,
@@ -28,7 +28,9 @@ static struct smc_config flash_config __initdata = {
 
         .read_cycle             = 120,
         .write_cycle            = 120,
+};
 
+static struct smc_config flash_config __initdata = {
         .bus_width              = 2,
         .nrd_controlled         = 1,
         .nwe_controlled         = 1,
@@ -82,6 +84,7 @@ static int __init atngw100_flash_init(void)
 {
         int ret;
 
+        smc_set_timing(&flash_config, &flash_timing);
         ret = smc_set_configuration(0, &flash_config);
         if (ret < 0) {
                 printk(KERN_ERR "atngw100: failed to set NOR flash timing\n");