From: syin@broadcom.com (Sherman Yin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: Fix up l2x0_init log message
Date: Wed, 13 Feb 2013 11:14:53 -0800 [thread overview]
Message-ID: <1360782893-20969-2-git-send-email-syin@broadcom.com> (raw)
In-Reply-To: <1360782893-20969-1-git-send-email-syin@broadcom.com>
The log at the end of l2x0_init() should print L2 cache info based on current
register value instead of function argument.
---
arch/arm/mm/cache-l2x0.c | 39 +++++++++++++++++++++++++++++++--------
1 file changed, 31 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index c2f3739..011a584 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -377,14 +377,6 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask)
l2x0_way_mask = (1 << ways) - 1;
/*
- * L2 cache Size = Way size * Number of ways
- */
- way_size = (aux & L2X0_AUX_CTRL_WAY_SIZE_MASK) >> 17;
- way_size = 1 << (way_size + way_size_shift);
-
- l2x0_size = ways * way_size * SZ_1K;
-
- /*
* Check if l2x0 controller is already enabled.
* If you are booting from non-secure mode
* accessing the below registers will fault.
@@ -418,6 +410,37 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask)
outer_cache.disable = l2x0_disable;
}
+ /* Update number of ways based on aux ctrl register value */
+ switch (cache_id) {
+ case L2X0_CACHE_ID_PART_L310:
+ if (aux & (1 << 16))
+ ways = 16;
+ else
+ ways = 8;
+ break;
+ case L2X0_CACHE_ID_PART_L210:
+ ways = (aux >> 13) & 0xf;
+ break;
+
+ case AURORA_CACHE_ID:
+ ways = (aux >> 13) & 0xf;
+ ways = 2 << ((ways + 1) >> 2);
+ way_size_shift = AURORA_WAY_SIZE_SHIFT;
+ break;
+ default:
+ /* Assume unknown chips have 8 ways */
+ ways = 8;
+ break;
+ }
+
+ /*
+ * L2 cache Size = Way size * Number of ways
+ */
+ way_size = (aux & L2X0_AUX_CTRL_WAY_SIZE_MASK) >> 17;
+ way_size = 1 << (way_size + way_size_shift);
+
+ l2x0_size = ways * way_size * SZ_1K;
+
printk(KERN_INFO "%s cache controller enabled\n", type);
printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n",
ways, cache_id, aux, l2x0_size);
--
1.7.9.5
prev parent reply other threads:[~2013-02-13 19:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-13 19:14 [PATCH] ARM: Fix up l2x0_init log message Sherman Yin
2013-02-13 19:14 ` Sherman Yin [this message]
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