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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-29 17:24:35 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-29 17:24:35 -0800 |
| commit | 00fd6a7194d2f3be3ecc4fde0af02b39823afdcc (patch) | |
| tree | 9c720cbb271a42014ca6c256da5741f4b04feff2 | |
| parent | d72aee78e9bb956265480a118bdba2fc99dbf4bf (diff) | |
| parent | c861519fcf95b2d46cb4275903423b43ae150a40 (diff) | |
| download | linux-stable-00fd6a7194d2f3be3ecc4fde0af02b39823afdcc.tar.gz linux-stable-00fd6a7194d2f3be3ecc4fde0af02b39823afdcc.tar.bz2 linux-stable-00fd6a7194d2f3be3ecc4fde0af02b39823afdcc.zip | |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fix from Ralf Baechle:
"Just a fix for empty loops that may be removed by non-antique GCC"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Fix delay loops which may be removed by GCC.
| -rw-r--r-- | arch/mips/pci/pci-rt2880.c | 4 | ||||
| -rw-r--r-- | arch/mips/pmcs-msp71xx/msp_setup.c | 4 | ||||
| -rw-r--r-- | arch/mips/sni/reset.c | 6 |
3 files changed, 9 insertions, 5 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); diff --git a/arch/mips/pmcs-msp71xx/msp_setup.c b/arch/mips/pmcs-msp71xx/msp_setup.c index 4f925e06c414..78b2ef49dbc7 100644 --- a/arch/mips/pmcs-msp71xx/msp_setup.c +++ b/arch/mips/pmcs-msp71xx/msp_setup.c @@ -10,6 +10,8 @@ * option) any later version. */ +#include <linux/delay.h> + #include <asm/bootinfo.h> #include <asm/cacheflush.h> #include <asm/idle.h> @@ -77,7 +79,7 @@ void msp7120_reset(void) */ /* Wait a bit for the DDRC to settle */ - for (i = 0; i < 100000000; i++); + mdelay(125); #if defined(CONFIG_PMC_MSP7120_GW) /* diff --git a/arch/mips/sni/reset.c b/arch/mips/sni/reset.c index 244f9427625b..db8f88b6a3af 100644 --- a/arch/mips/sni/reset.c +++ b/arch/mips/sni/reset.c @@ -3,6 +3,8 @@ * * Reset a SNI machine. */ +#include <linux/delay.h> + #include <asm/io.h> #include <asm/reboot.h> #include <asm/sni.h> @@ -32,9 +34,9 @@ void sni_machine_restart(char *command) for (;;) { for (i = 0; i < 100; i++) { kb_wait(); - for (j = 0; j < 100000 ; j++) - /* nothing */; + udelay(50); outb_p(0xfe, 0x64); /* pulse reset low */ + udelay(50); } } } |