diff options
| -rw-r--r-- | arch/arm/mm/cache-l2x0.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 7e53214f7c3..6d8a0575a68 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -654,6 +654,18 @@ static void __init l2c310_enable(void __iomem *base, u32 aux, unsigned num_lock) } } + /* r3p0 or later has power control register */ + if (rev >= L310_CACHE_ID_RTL_R3P0) { + u32 power_ctrl; + + l2c_write_sec(L310_DYNAMIC_CLK_GATING_EN | L310_STNDBY_MODE_EN, + base, L310_POWER_CTRL); + power_ctrl = readl_relaxed(base + L310_POWER_CTRL); + pr_info("L2C-310 dynamic clock gating %sabled, standby mode %sabled\n", + power_ctrl & L310_DYNAMIC_CLK_GATING_EN ? "en" : "dis", + power_ctrl & L310_STNDBY_MODE_EN ? "en" : "dis"); + } + l2c_enable(base, aux, num_lock); } |