From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from svdc-dhcp-10-66-6-202.amcc.com (unknown [76.195.33.70]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id B1A15DE7CE for ; Fri, 22 Aug 2008 14:54:23 +1000 (EST) From: fkan@amcc.com To: linuxppc-embedded@ozlabs.org Subject: [PATCH] AMCC PPC460GT/EX PCI-E de-emphasis adjustment fix Date: Thu, 21 Aug 2008 21:53:34 -0700 Message-Id: <1219380814-17229-1-git-send-email-fkan@amcc.com> Cc: Tirumala R Marri List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Tirumala R Marri 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 --- arch/powerpc/sysdev/ppc4xx_pci.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c index bdb3663..0ce3f46 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.c +++ b/arch/powerpc/sysdev/ppc4xx_pci.c @@ -815,7 +815,7 @@ 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); @@ -826,10 +826,10 @@ 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); -- 1.5.5