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Commit e30c9875 authored by Tirumala R Marri's avatar Tirumala R Marri Committed by Josh Boyer
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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: default avatarTirumala R Marri <tmarri@amcc.com>
Signed-off-by: default avatarFeng Kan <fkan@amcc.com>
Acked-by: default avatarStefan Roese <sr@denx.de>
Signed-off-by: default avatarJosh Boyer <jwboyer@linux.vnet.ibm.com>
parent 7713fef0

arch/powerpc/sysdev/ppc4xx_pci.c

+5 −5
Original line number Diff line number Diff line
@@ -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);