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authorTirumala R Marri <tmarri@amcc.com>2008-08-21 18:53:34 +0000
committerJosh Boyer <jwboyer@linux.vnet.ibm.com>2008-08-28 08:58:53 -0400
commite30c98758453d743fab00e45da0eac6fc581958a (patch)
treede72d65f950168a653eb12a95edb87e2dec4a6ed /arch/powerpc/sysdev/ppc4xx_pci.c
parent7713fef06517d216f96ee7c8ad750e72bc08d38f (diff)
powerpc/44x: AMCC PPC460GT/EX PCI-E de-emphasis adjustment fix
During recent tests with PCI-E , it has been found the DRV + De-Emphasis values are not optimum. These new values are tested thouroughly. Signed-off-by: Tirumala R Marri <tmarri@amcc.com> Signed-off-by: Feng Kan fkan@amcc.com Acked-by: Stefan Roese <sr@denx.de> 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.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index fb368dfde5d..d5c345dbb89 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -810,7 +810,7 @@ static int ppc460ex_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
switch (port->index) {
case 0:
mtdcri(SDR0, PESDR0_460EX_L0CDRCTL, 0x00003230);
- mtdcri(SDR0, PESDR0_460EX_L0DRV, 0x00000136);
+ mtdcri(SDR0, PESDR0_460EX_L0DRV, 0x00000130);
mtdcri(SDR0, PESDR0_460EX_L0CLK, 0x00000006);
mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST,0x10000000);
@@ -821,10 +821,10 @@ static int ppc460ex_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
mtdcri(SDR0, PESDR1_460EX_L1CDRCTL, 0x00003230);
mtdcri(SDR0, PESDR1_460EX_L2CDRCTL, 0x00003230);
mtdcri(SDR0, PESDR1_460EX_L3CDRCTL, 0x00003230);
- mtdcri(SDR0, PESDR1_460EX_L0DRV, 0x00000136);
- mtdcri(SDR0, PESDR1_460EX_L1DRV, 0x00000136);
- mtdcri(SDR0, PESDR1_460EX_L2DRV, 0x00000136);
- mtdcri(SDR0, PESDR1_460EX_L3DRV, 0x00000136);
+ mtdcri(SDR0, PESDR1_460EX_L0DRV, 0x00000130);
+ mtdcri(SDR0, PESDR1_460EX_L1DRV, 0x00000130);
+ mtdcri(SDR0, PESDR1_460EX_L2DRV, 0x00000130);
+ mtdcri(SDR0, PESDR1_460EX_L3DRV, 0x00000130);
mtdcri(SDR0, PESDR1_460EX_L0CLK, 0x00000006);
mtdcri(SDR0, PESDR1_460EX_L1CLK, 0x00000006);
mtdcri(SDR0, PESDR1_460EX_L2CLK, 0x00000006);