diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2015-11-27 19:17:01 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-11-27 19:20:37 +0100 |
| commit | c861519fcf95b2d46cb4275903423b43ae150a40 (patch) | |
| tree | 7e17dcbb79a0a12dc06eae6d1bc3a5a3d8fa58ce /arch/mips/pci | |
| parent | Linux 4.4-rc2 (diff) | |
| download | linux-c861519fcf95b2d46cb4275903423b43ae150a40.tar.xz linux-c861519fcf95b2d46cb4275903423b43ae150a40.zip | |
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.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/pci/pci-rt2880.c b/arch/mips/pci/pci-rt2880.c index 8a978022630b..dbbeccc3d714 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); |