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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2019-04-02 14:50:53 +0200
committerStephen Boyd <sboyd@kernel.org>2019-04-25 12:34:05 -0700
commite5be537064dd36129a724c65820e5fc2daebd5f4 (patch)
tree83eaafa42ecac28853e44bb3adfa875786003097 /drivers/clk/at91
parent2423eeaead6f83f289c85394313e693cdefb728c (diff)
downloadlinux-e5be537064dd36129a724c65820e5fc2daebd5f4.tar.bz2
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.c8
-rw-r--r--drivers/clk/at91/pmc.h1
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;
};