diff options
Diffstat (limited to 'arch/arm/mach-omap2/gpmc.c')
| -rw-r--r-- | arch/arm/mach-omap2/gpmc.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index f46933bc9373..1b7b3e7d02f7 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -168,6 +168,16 @@ unsigned int gpmc_ns_to_ticks(unsigned int time_ns) return (time_ns * 1000 + tick_ps - 1) / tick_ps; } +unsigned int gpmc_ps_to_ticks(unsigned int time_ps) +{ + unsigned long tick_ps; + + /* Calculate in picosecs to yield more exact results */ + tick_ps = gpmc_get_fclk_period(); + + return (time_ps + tick_ps - 1) / tick_ps; +} + unsigned int gpmc_ticks_to_ns(unsigned int ticks) { return ticks * gpmc_get_fclk_period() / 1000; @@ -235,7 +245,7 @@ int gpmc_cs_calc_divider(int cs, unsigned int sync_clk) int div; u32 l; - l = sync_clk * 1000 + (gpmc_get_fclk_period() - 1); + l = sync_clk + (gpmc_get_fclk_period() - 1); div = l / gpmc_get_fclk_period(); if (div > 4) return -1; |