Messages in this thread | | | Date | Sat, 11 Jun 2016 21:39:59 +0800 | From | Shawn Guo <> | Subject | Re: [PATCH 3/3] i.MX: system.c: Replace magic numbers |
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On Tue, Jun 07, 2016 at 08:29:26AM -0700, Andrey Smirnov wrote: > Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> > --- > arch/arm/include/asm/hardware/cache-l2x0.h | 7 +++++++
I need Russell's ACK on this file.
Shawn
> arch/arm/mach-imx/system.c | 5 ++++- > 2 files changed, 11 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h > index 3a5ec1c..5e27162 100644 > --- a/arch/arm/include/asm/hardware/cache-l2x0.h > +++ b/arch/arm/include/asm/hardware/cache-l2x0.h > @@ -61,6 +61,13 @@ > #define L2X0_LINE_TAG 0xF30 > #define L2X0_DEBUG_CTRL 0xF40 > #define L310_PREFETCH_CTRL 0xF60 > +#define L310_DOUBLE_LINEFILL_EN BIT(30) > +#define L310_INSTRUCTION_PREFETCH_EN BIT(29) > +#define L310_DATA_PREFETCH_EN BIT(28) > +#define L310_DOUBLE_LINEFILL_ON_WRAP_READ_DIS BIT(27) > +#define L310_PREFETCH_DROP_EN BIT(24) > +#define L310_INCR_DOUBLE_LINEFILL_EN BIT(23) > +#define L310_ESCLUSIVE_SEQUENCE_EN BIT(21) > #define L310_POWER_CTRL 0xF80 > #define L310_DYNAMIC_CLK_GATING_EN (1 << 1) > #define L310_STNDBY_MODE_EN (1 << 0) > diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c > index b153376..bd9a96b 100644 > --- a/arch/arm/mach-imx/system.c > +++ b/arch/arm/mach-imx/system.c > @@ -109,7 +109,10 @@ void __init imx_init_l2cache(void) > if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { > /* Configure the L2 PREFETCH and POWER registers */ > val = readl_relaxed(l2x0_base + L310_PREFETCH_CTRL); > - val |= 0x70800000; > + val |= L310_DOUBLE_LINEFILL_EN | > + L310_INSTRUCTION_PREFETCH_EN | > + L310_DATA_PREFETCH_EN | > + L310_INCR_DOUBLE_LINEFILL_EN; > writel_relaxed(val, l2x0_base + L310_PREFETCH_CTRL); > } > > -- > 2.5.5 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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