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| author | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2019-04-02 14:50:53 +0200 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2019-04-25 12:34:05 -0700 |
| commit | e5be537064dd36129a724c65820e5fc2daebd5f4 (patch) | |
| tree | 83eaafa42ecac28853e44bb3adfa875786003097 /drivers/clk/at91 | |
| parent | 2423eeaead6f83f289c85394313e693cdefb728c (diff) | |
| download | linux-e5be537064dd36129a724c65820e5fc2daebd5f4.tar.gz linux-e5be537064dd36129a724c65820e5fc2daebd5f4.tar.bz2 linux-e5be537064dd36129a724c65820e5fc2daebd5f4.zip | |
clk: at91: master: Add sam9x60 support
The sam9x60 cpu clock is located at a different offset but is otherwise
similar to the master clock.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/at91')
| -rw-r--r-- | drivers/clk/at91/clk-master.c | 8 | ||||
| -rw-r--r-- | drivers/clk/at91/pmc.h | 1 |
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c index eb53b4a8fab6..12b5bf4cc7bb 100644 --- a/drivers/clk/at91/clk-master.c +++ b/drivers/clk/at91/clk-master.c @@ -29,6 +29,7 @@ struct clk_master { struct regmap *regmap; const struct clk_master_layout *layout; const struct clk_master_characteristics *characteristics; + u32 mckr; }; static inline bool clk_master_ready(struct regmap *regmap) @@ -69,7 +70,7 @@ static unsigned long clk_master_recalc_rate(struct clk_hw *hw, master->characteristics; unsigned int mckr; - regmap_read(master->regmap, AT91_PMC_MCKR, &mckr); + regmap_read(master->regmap, master->layout->offset, &mckr); mckr &= layout->mask; pres = (mckr >> layout->pres_shift) & MASTER_PRES_MASK; @@ -95,7 +96,7 @@ static u8 clk_master_get_parent(struct clk_hw *hw) struct clk_master *master = to_clk_master(hw); unsigned int mckr; - regmap_read(master->regmap, AT91_PMC_MCKR, &mckr); + regmap_read(master->regmap, master->layout->offset, &mckr); return mckr & AT91_PMC_CSS; } @@ -147,13 +148,14 @@ at91_clk_register_master(struct regmap *regmap, return hw; } - const struct clk_master_layout at91rm9200_master_layout = { .mask = 0x31F, .pres_shift = 2, + .offset = AT91_PMC_MCKR, }; const struct clk_master_layout at91sam9x5_master_layout = { .mask = 0x373, .pres_shift = 4, + .offset = AT91_PMC_MCKR, }; diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index 44345e4ab1c9..4a30c20f17f1 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -38,6 +38,7 @@ struct clk_range { #define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,} struct clk_master_layout { + u32 offset; u32 mask; u8 pres_shift; }; |