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authorKhoronzhuk, Ivan <ivan.khoronzhuk@ti.com>2014-10-17 21:01:16 +0300
committerTom Rini <trini@ti.com>2014-10-23 11:27:29 -0400
commit69a3b811411d7f7d58c1ad587412451e7d4ed412 (patch)
treeaf057747679dbe4a6d48aa97865b8626133f20d2 /arch
parentc05d05e7202b01a1b461c78ba6c5b06545621620 (diff)
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ARM: keystone: clock: add support for K2E SoCs
For K2E and K2L SoCs clock output from PASS PLL has to be enabled after NETCP domain and PA module are enabled. So create new function for that and call it after PA module is enabled. Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/cpu/armv7/keystone/clock.c17
-rw-r--r--arch/arm/include/asm/arch-keystone/clock.h1
2 files changed, 14 insertions, 4 deletions
diff --git a/arch/arm/cpu/armv7/keystone/clock.c b/arch/arm/cpu/armv7/keystone/clock.c
index 47fc893..d13fbc1 100644
--- a/arch/arm/cpu/armv7/keystone/clock.c
+++ b/arch/arm/cpu/armv7/keystone/clock.c
@@ -185,10 +185,6 @@ void init_pll(const struct pll_init_data *data)
tmp &= ~(PLL_BWADJ_HI_MASK);
tmp |= ((bwadj >> 8) & PLL_BWADJ_HI_MASK);
- /* set PLL Select (bit 13) for PASS PLL */
- if (data->pll == PASS_PLL)
- tmp |= PLLCTL_PAPLL;
-
__raw_writel(tmp, keystone_pll_regs[data->pll].reg1);
/* Reset bit: bit 14 for both DDR3 & PASS PLL */
@@ -261,3 +257,16 @@ inline int get_max_arm_speed(void)
return get_max_speed((read_efuse_bootrom() >> 16) & 0xffff, arm_speeds);
}
#endif
+
+void pass_pll_pa_clk_enable(void)
+{
+ u32 reg;
+
+ reg = readl(keystone_pll_regs[PASS_PLL].reg1);
+
+ reg |= PLLCTL_PAPLL;
+ writel(reg, keystone_pll_regs[PASS_PLL].reg1);
+
+ /* wait till clock is enabled */
+ sdelay(15000);
+}
diff --git a/arch/arm/include/asm/arch-keystone/clock.h b/arch/arm/include/asm/arch-keystone/clock.h
index 7218230..9f6cfb2 100644
--- a/arch/arm/include/asm/arch-keystone/clock.h
+++ b/arch/arm/include/asm/arch-keystone/clock.h
@@ -58,6 +58,7 @@ void init_pll(const struct pll_init_data *data);
unsigned long clk_get_rate(unsigned int clk);
unsigned long clk_round_rate(unsigned int clk, unsigned long hz);
int clk_set_rate(unsigned int clk, unsigned long hz);
+void pass_pll_pa_clk_enable(void);
int get_max_dev_speed(void);
int get_max_arm_speed(void);