summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/omap_l3_smx.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-omap2/omap_l3_smx.c')
-rw-r--r--arch/arm/mach-omap2/omap_l3_smx.c91
1 files changed, 44 insertions, 47 deletions
diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c
index 873c0e33b512..a05a62f9ee5b 100644
--- a/arch/arm/mach-omap2/omap_l3_smx.c
+++ b/arch/arm/mach-omap2/omap_l3_smx.c
@@ -1,26 +1,26 @@
- /*
- * OMAP3XXX L3 Interconnect Driver
- *
- * Copyright (C) 2011 Texas Corporation
- * Felipe Balbi <balbi@ti.com>
- * Santosh Shilimkar <santosh.shilimkar@ti.com>
- * Sricharan <r.sricharan@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
+/*
+ * OMAP3XXX L3 Interconnect Driver
+ *
+ * Copyright (C) 2011 Texas Corporation
+ * Felipe Balbi <balbi@ti.com>
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ * Sricharan <r.sricharan@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
#include <linux/kernel.h>
#include <linux/slab.h>
@@ -135,7 +135,7 @@ static char *omap3_l3_initiator_string(u8 initid)
}
}
-/**
+/*
* omap3_l3_block_irq - handles a register block's irq
* @l3: struct omap3_l3 *
* @base: register block base address
@@ -150,30 +150,29 @@ static char *omap3_l3_initiator_string(u8 initid)
static irqreturn_t omap3_l3_block_irq(struct omap3_l3 *l3,
u64 error, int error_addr)
{
- u8 code = omap3_l3_decode_error_code(error);
- u8 initid = omap3_l3_decode_initid(error);
- u8 multi = error & L3_ERROR_LOG_MULTI;
- u32 address = omap3_l3_decode_addr(error_addr);
+ u8 code = omap3_l3_decode_error_code(error);
+ u8 initid = omap3_l3_decode_initid(error);
+ u8 multi = error & L3_ERROR_LOG_MULTI;
+ u32 address = omap3_l3_decode_addr(error_addr);
WARN(true, "%s seen by %s %s at address %x\n",
- omap3_l3_code_string(code),
- omap3_l3_initiator_string(initid),
- multi ? "Multiple Errors" : "",
- address);
+ omap3_l3_code_string(code),
+ omap3_l3_initiator_string(initid),
+ multi ? "Multiple Errors" : "", address);
return IRQ_HANDLED;
}
static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
{
- struct omap3_l3 *l3 = _l3;
- u64 status, clear;
- u64 error;
- u64 error_addr;
- u64 err_source = 0;
- void __iomem *base;
- int int_type;
- irqreturn_t ret = IRQ_NONE;
+ struct omap3_l3 *l3 = _l3;
+ u64 status, clear;
+ u64 error;
+ u64 error_addr;
+ u64 err_source = 0;
+ void __iomem *base;
+ int int_type;
+ irqreturn_t ret = IRQ_NONE;
int_type = irq == l3->app_irq ? L3_APPLICATION_ERROR : L3_DEBUG_ERROR;
if (!int_type) {
@@ -191,14 +190,12 @@ static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
}
/* identify the error source */
- for (err_source = 0; !(status & (1 << err_source)); err_source++)
- ;
+ err_source = __ffs(status);
- base = l3->rt + *(omap3_l3_bases[int_type] + err_source);
+ base = l3->rt + omap3_l3_bases[int_type][err_source];
error = omap3_l3_readll(base, L3_ERROR_LOG);
if (error) {
error_addr = omap3_l3_readll(base, L3_ERROR_LOG_ADDR);
-
ret |= omap3_l3_block_irq(l3, error, error_addr);
}
@@ -215,9 +212,9 @@ static irqreturn_t omap3_l3_app_irq(int irq, void *_l3)
static int __init omap3_l3_probe(struct platform_device *pdev)
{
- struct omap3_l3 *l3;
- struct resource *res;
- int ret;
+ struct omap3_l3 *l3;
+ struct resource *res;
+ int ret;
l3 = kzalloc(sizeof(*l3), GFP_KERNEL);
if (!l3)