From: Mike Turquette <mturque...@linaro.org>
The ARM periphclk drives various peripherals for the MPU including the
TWD and local timers. This patch creates the missing clk tree data to
represent this relationship:
dpll_mpu_ck
|
dpll_mpu_m2_ck (divide by 1)
|
mpu_clk (divide by 1)
|
mpu_periphclk (divide by 2)
This patch is based on Santosh Shilimkar's original version:
http://article.gmane.org/gmane.linux.ports.arm.omap/64936
Not-signed-off-by: Mike Turquette <mturque...@ti.com>
---
arch/arm/mach-omap2/clock44xx_data.c | 37 +++++++++++++++++++++++++++++++++-
1 files changed, 36 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/clock44xx_data.c
b/arch/arm/mach-omap2/clock44xx_data.c
index 33249b3..6c6d0fb 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -1035,7 +1035,7 @@ static const struct clksel dpll_mpu_m2_div[] = {
static const struct clk_hw_ops dpll_mpu_m2_ck_ops = {
.recalc_rate = &omap2_clksel_recalc,
- .round_rate = &omap2_clksel_round_rate,
+ .round_rate = &omap2_passthrough_round_rate,
.set_rate = &omap2_clksel_set_rate,
.get_parent = &omap2_get_parent_fixed,
};
@@ -1043,6 +1043,7 @@ static const struct clk_hw_ops dpll_mpu_m2_ck_ops = {
static struct clk_hw_omap dpll_mpu_m2_ck_hw = {
.clk = {
.name = "dpll_mpu_m2_ck",
+ .flags = CLK_PARENT_SET_RATE,
.ops = &dpll_mpu_m2_ck_ops,
},
.fixed_parent = &dpll_mpu_ck_hw.clk,
@@ -1053,6 +1054,38 @@ static struct clk_hw_omap dpll_mpu_m2_ck_hw = {
.deny_idle = &omap4_dpllmx_deny_gatectrl,
};
+static const struct clk_hw_ops mpu_clk_ops = {
+ .recalc_rate = &omap_fixed_divisor_recalc,
+ .round_rate = &omap2_passthrough_round_rate,
+ .get_parent = &omap2_get_parent_fixed,
+};
+
+static struct clk_hw_omap mpu_clk_hw = {
+ .clk = {
+ .name = "mpu_clk",
+ .flags = CLK_PARENT_SET_RATE,
+ .ops = &mpu_clk_ops,
+ },
+ .fixed_parent = &dpll_mpu_m2_ck_hw.clk,
+ .fixed_div = 1,
+};
+
+static const struct clk_hw_ops mpu_periphclk_ops = {
+ .recalc_rate = &omap_fixed_divisor_recalc,
+ .round_rate = &omap2_passthrough_round_rate,
+ .get_parent = &omap2_get_parent_fixed,
+};
+
+static struct clk_hw_omap mpu_periphclk_hw = {
+ .clk = {
+ .name = "mpu_periphclk",
+ .flags = CLK_PARENT_SET_RATE,
+ .ops = &mpu_periphclk_ops,
+ },
+ .fixed_parent = &mpu_clk_hw.clk,
+ .fixed_div = 2,
+};
+
static const struct clk_hw_ops per_hs_clk_div_ck_ops = {
.recalc_rate = &omap_fixed_divisor_recalc,
.get_parent = &omap2_get_parent_fixed,
@@ -4071,6 +4104,8 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "dpll_iva_m5x2_ck",
&dpll_iva_m5x2_ck_hw.clk, CK_443X),
CLK(NULL, "dpll_mpu_ck", &dpll_mpu_ck_hw.clk,
CK_443X),
CLK(NULL, "dpll_mpu_m2_ck", &dpll_mpu_m2_ck_hw.clk,
CK_443X),
+ CLK(NULL, "mpu_clk", &mpu_clk_hw.clk,
CK_443X),
+ CLK("smp_twd", NULL, &mpu_periphclk_hw.clk,
CK_443X),
CLK(NULL, "per_hs_clk_div_ck",
&per_hs_clk_div_ck_hw.clk, CK_443X),
CLK(NULL, "per_hsd_byp_clk_mux_ck",
&per_hsd_byp_clk_mux_ck_hw.clk, CK_443X),
CLK(NULL, "dpll_per_ck", &dpll_per_ck_hw.clk,
CK_443X),
--
1.7.5.4
_______________________________________________
linaro-dev mailing list
linaro-dev@lists.linaro.org
http://lists.linaro.org/mailman/listinfo/linaro-dev
