[PATCH 1/3] ARM: OMAP4: VC: fix I2C timing
From: Tero Kristo <hidden>
Date: 2012-05-04 13:57:20
Also in:
linux-omap
Subsystem:
arm port, omap2+ support, the rest · Maintainers:
Russell King, Aaro Koskinen, Andreas Kemnade, Kevin Hilman, Roger Quadros, Tony Lindgren, Linus Torvalds
Current I2C timing parameters do not work with Panda board at least. Parameters updated based on TI recommendation. Signed-off-by: Tero Kristo <redacted> --- arch/arm/mach-omap2/vc.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c
index 1fd976e..a731400 100644
--- a/arch/arm/mach-omap2/vc.c
+++ b/arch/arm/mach-omap2/vc.c@@ -585,7 +585,9 @@ static void __init omap4_vc_init_channel(struct voltagedomain *voltdm) omap4_set_timings(voltdm, true); /* XXX These are magic numbers and do not belong! */ - vc_val = (0x60 << OMAP4430_SCLL_SHIFT | 0x26 << OMAP4430_SCLH_SHIFT); + vc_val = (0x28 << OMAP4430_SCLL_SHIFT | 0x2c << OMAP4430_SCLH_SHIFT); + vc_val |= (0x0b << OMAP4430_HSSCLL_SHIFT); + vc_val |= (0x0 << OMAP4430_HSSCLH_SHIFT); voltdm->write(vc_val, OMAP4_PRM_VC_CFG_I2C_CLK_OFFSET); }
--
1.7.4.1