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authorValentine Barshak <vbarshak@ru.mvista.com>2008-03-06 15:34:52 +0100
committerJosh Boyer <jwboyer@linux.vnet.ibm.com>2008-03-26 13:23:09 +0100
commit6e42b21bb91a562cd843a156586fe7b5954f58b3 (patch)
treeae19531d4221350b0162a138109d35172ddca1ec /arch/powerpc/sysdev/ppc4xx_pci.c
parent[POWERPC] 4xx: Add dcri_clrset() for locked read/modify/write functionality (diff)
downloadlinux-6e42b21bb91a562cd843a156586fe7b5954f58b3.tar.xz
linux-6e42b21bb91a562cd843a156586fe7b5954f58b3.zip
[POWERPC] 4xx: Use dcri_clrset() for PCIe indirect dcr read/modify/write access
Use dcri_clrset() for PCIe SDR0 read/modify/write access. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/sysdev/ppc4xx_pci.c')
-rw-r--r--arch/powerpc/sysdev/ppc4xx_pci.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index d183b8390ec3..6c925b7975f9 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -646,7 +646,7 @@ static int __init ppc440spe_pciex_core_init(struct device_node *np)
int time_out = 20;
/* Set PLL clock receiver to LVPECL */
- mtdcri(SDR0, PESDR0_PLLLCT1, mfdcri(SDR0, PESDR0_PLLLCT1) | 1 << 28);
+ dcri_clrset(SDR0, PESDR0_PLLLCT1, 0, 1 << 28);
/* Shouldn't we do all the calibration stuff etc... here ? */
if (ppc440spe_pciex_check_reset(np))
@@ -660,8 +660,7 @@ static int __init ppc440spe_pciex_core_init(struct device_node *np)
}
/* De-assert reset of PCIe PLL, wait for lock */
- mtdcri(SDR0, PESDR0_PLLLCT1,
- mfdcri(SDR0, PESDR0_PLLLCT1) & ~(1 << 24));
+ dcri_clrset(SDR0, PESDR0_PLLLCT1, 1 << 24, 0);
udelay(3);
while (time_out) {
@@ -713,9 +712,8 @@ static int ppc440spe_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL7SET1,
0x35000000);
}
- val = mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET);
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
- (val & ~(1 << 24 | 1 << 16)) | 1 << 12);
+ dcri_clrset(SDR0, port->sdr_base + PESDRn_RCSSET,
+ (1 << 24) | (1 << 16), 1 << 12);
return 0;
}
@@ -1156,8 +1154,7 @@ static int __init ppc4xx_pciex_port_init(struct ppc4xx_pciex_port *port)
port->link = 0;
}
- mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
- mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) | 1 << 20);
+ dcri_clrset(SDR0, port->sdr_base + PESDRn_RCSSET, 0, 1 << 20);
msleep(100);
return 0;