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-rw-r--r--arch/blackfin/mm/sram-alloc.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/blackfin/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c
index 29d98fa..342e378 100644
--- a/arch/blackfin/mm/sram-alloc.c
+++ b/arch/blackfin/mm/sram-alloc.c
@@ -186,9 +186,45 @@ static void __init l1_inst_sram_init(void)
#endif
}
+#ifdef __ADSPBF60x__
+static irqreturn_t l2_ecc_err(int irq, void *dev_id)
+{
+ int status;
+
+ printk(KERN_ERR "L2 ecc error happend\n");
+ status = bfin_read32(L2CTL0_STAT);
+ if (status & 0x1)
+ printk(KERN_ERR "Core channel error type:0x%x, addr:0x%x\n",
+ bfin_read32(L2CTL0_ET0), bfin_read32(L2CTL0_EADDR0));
+ if (status & 0x2)
+ printk(KERN_ERR "System channel error type:0x%x, addr:0x%x\n",
+ bfin_read32(L2CTL0_ET1), bfin_read32(L2CTL0_EADDR1));
+
+ status = status >> 8;
+ if (status)
+ printk(KERN_ERR "L2 Bank%d error, addr:0x%x\n",
+ status, bfin_read32(L2CTL0_ERRADDR0 + status));
+
+ panic("L2 Ecc error");
+ return IRQ_HANDLED;
+}
+#endif
+
static void __init l2_sram_init(void)
{
#if L2_LENGTH != 0
+
+#ifdef __ADSPBF60x__
+ int ret;
+
+ ret = request_irq(IRQ_L2CTL0_ECC_ERR, l2_ecc_err, 0, "l2-ecc-err",
+ NULL);
+ if (unlikely(ret < 0)) {
+ printk(KERN_INFO "Fail to request l2 ecc error interrupt");
+ return;
+ }
+#endif
+
free_l2_sram_head.next =
kmem_cache_alloc(sram_piece_cache, GFP_KERNEL);
if (!free_l2_sram_head.next) {