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authorAdrian Hunter <adrian.hunter@nokia.com>2011-02-07 10:46:59 +0200
committerTony Lindgren <tony@atomide.com>2011-02-17 15:44:45 -0800
commit3ad2d861362031dac8b2bba78a8f4c575300948f (patch)
tree24dbf3d99034234dac78b3c001eac5c8470d514b /arch/arm/mach-omap2/gpmc-onenand.c
parent1435ca0fc1a269f9496343e24223a0fc430aff7a (diff)
downloadblackbird-op-linux-3ad2d861362031dac8b2bba78a8f4c575300948f.tar.gz
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OMAP: OneNAND: determine frequency in one place
OneNAND frequency is determined when calculating GPMC timings. Return that value instead of determining it again in the OMAP OneNAND driver. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/gpmc-onenand.c')
-rw-r--r--arch/arm/mach-omap2/gpmc-onenand.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c
index 3a4307b8f7cf..46786a606e90 100644
--- a/arch/arm/mach-omap2/gpmc-onenand.c
+++ b/arch/arm/mach-omap2/gpmc-onenand.c
@@ -123,7 +123,7 @@ static void set_onenand_cfg(void __iomem *onenand_base, int latency,
static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg,
void __iomem *onenand_base,
- int freq)
+ int *freq_ptr)
{
struct gpmc_timings t;
const int t_cer = 15;
@@ -136,7 +136,7 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg,
int tick_ns, div, fclk_offset_ns, fclk_offset, gpmc_clk_ns, latency;
int first_time = 0, hf = 0, vhf = 0, sync_read = 0, sync_write = 0;
int err, ticks_cez;
- int cs = cfg->cs;
+ int cs = cfg->cs, freq = *freq_ptr;
u32 reg;
if (cfg->flags & ONENAND_SYNC_READ) {
@@ -330,16 +330,18 @@ static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg,
set_onenand_cfg(onenand_base, latency, sync_read, sync_write, hf, vhf);
+ *freq_ptr = freq;
+
return 0;
}
-static int gpmc_onenand_setup(void __iomem *onenand_base, int freq)
+static int gpmc_onenand_setup(void __iomem *onenand_base, int *freq_ptr)
{
struct device *dev = &gpmc_onenand_device.dev;
/* Set sync timings in GPMC */
if (omap2_onenand_set_sync_mode(gpmc_onenand_data, onenand_base,
- freq) < 0) {
+ freq_ptr) < 0) {
dev_err(dev, "Unable to set synchronous mode\n");
return -EINVAL;
}
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