[PATCH 1/3] i.MX: system.c: Convert goto to if statement
From: Andrey Smirnov <hidden>
Date: 2016-06-13 05:55:50
Also in:
lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Using goto here doesn't bring any advantages and only makes the code flow less clear. No functional changes. Signed-off-by: Andrey Smirnov <redacted> --- RESEND, now with Russell King on CC list. arch/arm/mach-imx/system.c | 36 +++++++++++++++++------------------- 1 file changed, 17 insertions(+), 19 deletions(-)
diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c
index 105d1ce..d9f8b0e 100644
--- a/arch/arm/mach-imx/system.c
+++ b/arch/arm/mach-imx/system.c@@ -106,26 +106,24 @@ void __init imx_init_l2cache(void) goto out; } - if (readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN) - goto skip_if_enabled; - - /* Configure the L2 PREFETCH and POWER registers */ - val = readl_relaxed(l2x0_base + L310_PREFETCH_CTRL); - val |= 0x70800000; - /* - * The L2 cache controller(PL310) version on the i.MX6D/Q is r3p1-50rel0 - * The L2 cache controller(PL310) version on the i.MX6DL/SOLO/SL is r3p2 - * But according to ARM PL310 errata: 752271 - * ID: 752271: Double linefill feature can cause data corruption - * Fault Status: Present in: r3p0, r3p1, r3p1-50rel0. Fixed in r3p2 - * Workaround: The only workaround to this erratum is to disable the - * double linefill feature. This is the default behavior. - */ - if (cpu_is_imx6q()) - val &= ~(1 << 30 | 1 << 23); - writel_relaxed(val, l2x0_base + L310_PREFETCH_CTRL); + 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; + /* + * The L2 cache controller(PL310) version on the i.MX6D/Q is r3p1-50rel0 + * The L2 cache controller(PL310) version on the i.MX6DL/SOLO/SL is r3p2 + * But according to ARM PL310 errata: 752271 + * ID: 752271: Double linefill feature can cause data corruption + * Fault Status: Present in: r3p0, r3p1, r3p1-50rel0. Fixed in r3p2 + * Workaround: The only workaround to this erratum is to disable the + * double linefill feature. This is the default behavior. + */ + if (cpu_is_imx6q()) + val &= ~(1 << 30 | 1 << 23); + writel_relaxed(val, l2x0_base + L310_PREFETCH_CTRL); + } -skip_if_enabled: iounmap(l2x0_base); of_node_put(np);
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2.5.5