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authorMarek Vasut2015-07-26 11:42:53 +0200
committerMarek Vasut2015-08-08 14:14:24 +0200
commit6a39be6ca93bfeb7f89d5ae2c170ea929d8222a0 (patch)
tree0f30d9a987c0a6dd27df3b90e0a1b1e1639bcc0e
parentcbcaf4604329a6a69597630d7abdab942e2c59c8 (diff)
ddr: altera: Clean up of delay_for_n_mem_clocks() part 3
Clean up the computation of c_loop, outer and inner variables. Signed-off-by: Marek Vasut <marex@denx.de>
-rw-r--r--drivers/ddr/altera/sequencer.c24
1 files changed, 6 insertions, 18 deletions
diff --git a/drivers/ddr/altera/sequencer.c b/drivers/ddr/altera/sequencer.c
index 25de209b5d1..ed4d791af0b 100644
--- a/drivers/ddr/altera/sequencer.c
+++ b/drivers/ddr/altera/sequencer.c
@@ -761,9 +761,9 @@ static void set_jump_as_return(void)
static void delay_for_n_mem_clocks(const u32 clocks)
{
u32 afi_clocks;
- u16 c_loop = 0;
- u8 inner = 0;
- u8 outer = 0;
+ u16 c_loop;
+ u8 inner;
+ u8 outer;
debug("%s:%d: clocks=%u ... start\n", __func__, __LINE__, clocks);
@@ -779,21 +779,9 @@ static void delay_for_n_mem_clocks(const u32 clocks)
* before the decrement, and so always perform the loop
* 1 time more than the counter value
*/
- if (afi_clocks == 0) {
- ;
- } else if (afi_clocks < 0x100) {
- inner = afi_clocks;
- outer = 0;
- c_loop = 0;
- } else if (afi_clocks < 0x10000) {
- inner = 0xff;
- outer = afi_clocks >> 8;
- c_loop = 0;
- } else { /* >= 0x10000 */
- inner = 0xff;
- outer = 0xff;
- c_loop = afi_clocks >> 16;
- }
+ c_loop = afi_clocks >> 16;
+ outer = c_loop ? 0xff : (afi_clocks >> 8);
+ inner = outer ? 0xff : afi_clocks;
/*
* rom instructions are structured as follows: