Some of the timing configuration like extra delay
has bool type configurations. Provide a helper so
that these too can be configured in Kernel.
Signed-off-by: Afzal Mohammed <afzal@xxxxxx>
---
arch/arm/mach-omap2/gpmc.c | 55 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index e60076e3..65052f8 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -68,6 +68,13 @@
#define GPMC_ECC_CTRL_ECCREG8 0x008
#define GPMC_ECC_CTRL_ECCREG9 0x009
+#define GPMC_CONFIG2_CSEXTRADELAY BIT(7)
+#define GPMC_CONFIG3_ADVEXTRADELAY BIT(7)
+#define GPMC_CONFIG4_OEEXTRADELAY BIT(7)
+#define GPMC_CONFIG4_WEEXTRADELAY BIT(23)
+#define GPMC_CONFIG6_CYCLE2CYCLEDIFFCSEN BIT(6)
+#define GPMC_CONFIG6_CYCLE2CYCLESAMECSEN BIT(7)
+
#define GPMC_CS0_OFFSET 0x60
#define GPMC_CS_SIZE 0x30
@@ -960,6 +967,54 @@ static void gpmc_setup_cs_config(unsigned cs, unsigned conf)
gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, l);
}
+static void gpmc_cs_misc_timings(int cs, const struct gpmc_misc_timings *p)
+{
+ u32 l;
+
+ l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
+ if (p->time_para_granularity)
+ l |= GPMC_CONFIG1_TIME_PARA_GRAN;
+ else
+ l &= ~GPMC_CONFIG1_TIME_PARA_GRAN;
+ gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, l);
+
+ l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG2);
+ if (p->cs_extra_delay)
+ l |= GPMC_CONFIG2_CSEXTRADELAY;
+ else
+ l &= ~GPMC_CONFIG2_CSEXTRADELAY;
+ gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, l);
+
+ l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG3);
+ if (p->adv_extra_delay)
+ l |= GPMC_CONFIG3_ADVEXTRADELAY;
+ else
+ l &= ~GPMC_CONFIG3_ADVEXTRADELAY;
+ gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, l);
+
+ l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG4);
+ if (p->oe_extra_delay)
+ l |= GPMC_CONFIG4_OEEXTRADELAY;
+ else
+ l &= ~GPMC_CONFIG4_OEEXTRADELAY;
+ if (p->we_extra_delay)
+ l |= GPMC_CONFIG4_WEEXTRADELAY;
+ else
+ l &= ~GPMC_CONFIG4_WEEXTRADELAY;
+ gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, l);
+
+ l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG6);
+ if (p->cycle2cyclesamecsen)
+ l |= GPMC_CONFIG6_CYCLE2CYCLESAMECSEN;
+ else
+ l &= ~GPMC_CONFIG6_CYCLE2CYCLESAMECSEN;
+ if (p->cycle2cyclediffcsen)
+ l |= GPMC_CONFIG6_CYCLE2CYCLEDIFFCSEN;
+ else
+ l &= ~GPMC_CONFIG6_CYCLE2CYCLEDIFFCSEN;
+ gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, l);
+}
+
static inline void gpmc_set_one_timing(int cs, int reg, int start,
int end, u32 val)
{
--
1.7.10.2
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
