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authorRalf Baechle <ralf@linux-mips.org>2015-11-27 19:17:01 +0100
committerRalf Baechle <ralf@linux-mips.org>2015-11-27 19:20:37 +0100
commitc861519fcf95b2d46cb4275903423b43ae150a40 (patch)
tree7e17dcbb79a0a12dc06eae6d1bc3a5a3d8fa58ce /arch/mips/pci
parent1ec218373b8ebda821aec00bb156a9c94fad9cd4 (diff)
downloadop-kernel-dev-c861519fcf95b2d46cb4275903423b43ae150a40.zip
op-kernel-dev-c861519fcf95b2d46cb4275903423b43ae150a40.tar.gz
MIPS: Fix delay loops which may be removed by GCC.
GCC 4.1 and newer remove empty loops. This becomes a problem when delay loops get removed. Fixed by rewriting to user the proper Linux interface for such delays. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Acked-by: John Crispin <blogic@openwrt.org>
Diffstat (limited to 'arch/mips/pci')
-rw-r--r--arch/mips/pci/pci-rt2880.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/pci/pci-rt2880.c b/arch/mips/pci/pci-rt2880.c
index 8a97802..dbbeccc 100644
--- a/arch/mips/pci/pci-rt2880.c
+++ b/arch/mips/pci/pci-rt2880.c
@@ -11,6 +11,7 @@
* by the Free Software Foundation.
*/
+#include <linux/delay.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/io.h>
@@ -232,8 +233,7 @@ static int rt288x_pci_probe(struct platform_device *pdev)
ioport_resource.end = RT2880_PCI_IO_BASE + RT2880_PCI_IO_SIZE - 1;
rt2880_pci_reg_write(0, RT2880_PCI_REG_PCICFG_ADDR);
- for (i = 0; i < 0xfffff; i++)
- ;
+ udelay(1);
rt2880_pci_reg_write(0x79, RT2880_PCI_REG_ARBCTL);
rt2880_pci_reg_write(0x07FF0001, RT2880_PCI_REG_BAR0SETUP_ADDR);
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