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ddr: altera: Clean up of delay_for_n_mem_clocks() part 3

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Clean up the computation of c_loop, outer and inner variables.

Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut 2015-07-26 11:42:53 +02:00
parent cbcaf46043
commit 6a39be6ca9
1 changed files with 6 additions and 18 deletions
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22
drivers/ddr/altera/sequencer.c
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@ -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;
}
outer = c_loop ? 0xff : (afi_clocks >> 8);
inner = outer ? 0xff : afi_clocks;
/*
* rom instructions are structured as follows: