This function was intended for MN2WS0235 (what we call PH1-Pro4TV).
On that SoC, MPLL is already running on the power-on reset and it
makes sense to stop the PLL at early boot-up.
On the other hand, PH1-Pro4(R) does not have SC_MPLLOSCCTL register,
so this function has no point.
Signed-off-by: Masahiro Yamada <yamad...@jp.panasonic.com>
---
Changes in v5: None
Changes in v4: None
Changes in v3:
- Newly added
Changes in v2: None
arch/arm/mach-uniphier/include/mach/sc-regs.h | 4 ----
arch/arm/mach-uniphier/ph1-pro4/pll_init.c | 17 -----------------
2 files changed, 21 deletions(-)
diff --git a/arch/arm/mach-uniphier/include/mach/sc-regs.h
b/arch/arm/mach-uniphier/include/mach/sc-regs.h
index caec6c2..20878e2 100644
--- a/arch/arm/mach-uniphier/include/mach/sc-regs.h
+++ b/arch/arm/mach-uniphier/include/mach/sc-regs.h
@@ -11,10 +11,6 @@
#define SC_BASE_ADDR 0x61840000
-#define SC_MPLLOSCCTL (SC_BASE_ADDR | 0x1184)
-#define SC_MPLLOSCCTL_MPLLEN (0x1 << 0)
-#define SC_MPLLOSCCTL_MPLLST (0x1 << 1)
-
#define SC_DPLLCTRL (SC_BASE_ADDR | 0x1200)
#define SC_DPLLCTRL_SSC_EN (0x1 << 31)
#define SC_DPLLCTRL_FOUTMODE_MASK (0xf << 16)
diff --git a/arch/arm/mach-uniphier/ph1-pro4/pll_init.c
b/arch/arm/mach-uniphier/ph1-pro4/pll_init.c
index 3d29548..2a965a5 100644
--- a/arch/arm/mach-uniphier/ph1-pro4/pll_init.c
+++ b/arch/arm/mach-uniphier/ph1-pro4/pll_init.c
@@ -46,22 +46,6 @@ static void dpll_init(void)
writel(tmp, SC_DPLLCTRL2);
}
-static void stop_mpll(void)
-{
- u32 tmp;
-
- tmp = readl(SC_MPLLOSCCTL);
-
- if (!(tmp & SC_MPLLOSCCTL_MPLLST))
- return; /* already stopped */
-
- tmp &= ~SC_MPLLOSCCTL_MPLLEN;
- writel(tmp, SC_MPLLOSCCTL);
-
- while (readl(SC_MPLLOSCCTL) & SC_MPLLOSCCTL_MPLLST)
- ;
-}
-
static void vpll_init(void)
{
u32 tmp, clk_mode_axosel;
@@ -157,7 +141,6 @@ static void vpll_init(void)
void pll_init(void)
{
dpll_init();
- stop_mpll();
vpll_init();
/*
--
1.9.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
