diff options
Diffstat (limited to 'arch/arm/mach-tegra')
| -rw-r--r-- | arch/arm/mach-tegra/pinmux-common.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/pinmux-common.c b/arch/arm/mach-tegra/pinmux-common.c index 64baed4..0bef6e2 100644 --- a/arch/arm/mach-tegra/pinmux-common.c +++ b/arch/arm/mach-tegra/pinmux-common.c @@ -347,6 +347,21 @@ void pinmux_config_pingrp_table(const struct pmux_pingrp_config *config, #define SCHMT_SHIFT 3 #define LPMD_SHIFT 4 #define LPMD_MASK (3 << LPMD_SHIFT) +/* + * Note that the following DRV* and SLW* defines are accurate for many drive + * groups on many SoCs. We really need a per-group data structure to solve + * this, since the fields are in different positions/sizes in different + * registers (for different groups). + * + * On Tegra30/114/124, the DRV*_SHIFT values vary. + * On Tegra30, the SLW*_SHIFT values vary. + * On Tegra30/114/124/210, the DRV*_MASK values vary, although the values + * below are wide enough to cover the widest fields, and hopefully don't + * interfere with any other fields. + * On Tegra30, the SLW*_MASK values vary, but we can't use a value that's + * wide enough to cover all cases, since that would cause the field to + * overlap with other fields in the narrower cases. + */ #define DRVDN_SHIFT 12 #define DRVDN_MASK (0x7F << DRVDN_SHIFT) #define DRVUP_SHIFT 20 |