Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2025-02-26 12:27:12 +00:00
Code Issues Projects Releases Packages Wiki Activity

clk: imx: pllv3: add enable_bit

Browse source 
pllv3 PLLs have powerdown/up bits but enable bits too. Specifically
"enable bit" enable the pll output, so when dis/enabling pll by
setting/clearing power_bit we must also set/clear enable_bit.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Giulio Benetti 2020-04-08 17:10:07 +02:00 • committed by Stefano Babic
parent a5ed4fa95f
commit 8cefbe98b1
1 changed files with 9 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/clk/imx/clk-pllv3.c
View file

@ -25,6 +25,7 @@
#define PLL_DENOM_OFFSET 0x20 #define PLL_DENOM_OFFSET 0x20
#define BM_PLL_POWER (0x1 << 12) #define BM_PLL_POWER (0x1 << 12)
#define BM_PLL_ENABLE (0x1 << 13)
#define BM_PLL_LOCK (0x1 << 31) #define BM_PLL_LOCK (0x1 << 31)
struct clk_pllv3 { struct clk_pllv3 {
@ -32,6 +33,7 @@ struct clk_pllv3 {
void __iomem *base; void __iomem *base;
u32 power_bit; u32 power_bit;
bool powerup_set; bool powerup_set;
u32 enable_bit;
u32 div_mask; u32 div_mask;
u32 div_shift; u32 div_shift;
}; };
@ -83,6 +85,9 @@ static int clk_pllv3_generic_enable(struct clk *clk)
val |= pll->power_bit; val |= pll->power_bit;
else else
val &= ~pll->power_bit; val &= ~pll->power_bit;
val |= pll->enable_bit;
writel(val, pll->base); writel(val, pll->base);
return 0; return 0;
@ -98,6 +103,9 @@ static int clk_pllv3_generic_disable(struct clk *clk)
val &= ~pll->power_bit; val &= ~pll->power_bit;
else else
val |= pll->power_bit; val |= pll->power_bit;
val &= ~pll->enable_bit;
writel(val, pll->base); writel(val, pll->base);
return 0; return 0;
@ -238,6 +246,7 @@ struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
return ERR_PTR(-ENOMEM); return ERR_PTR(-ENOMEM);
pll->power_bit = BM_PLL_POWER; pll->power_bit = BM_PLL_POWER;
pll->enable_bit = BM_PLL_ENABLE;
switch (type) { switch (type) {
case IMX_PLLV3_GENERIC: case IMX_PLLV3_GENERIC: