From: Stefan Roese Date: Thu, 19 Apr 2007 07:53:52 +0000 (+0200) Subject: ppc4xx: Fix chip select timing for SysACE access on AMCC Katmai X-Git-Tag: v1.3.0-rc1~88^2~6 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=d21686263574e95cb3e9e9b0496f968b1b897fdb;p=u-boot ppc4xx: Fix chip select timing for SysACE access on AMCC Katmai Previous versions used full wait states for the chip select #1 which is connected to the Xilinix SystemACE controller on the AMCC Katmai evaluation board. This leads to really slow access and therefore low performance. This patch now sets up the chip select a lot faster resulting in much better read/write performance of the Linux driver. Signed-off-by: Stefan Roese --- diff --git a/include/configs/katmai.h b/include/configs/katmai.h index 7f55366ca5..cc47a168ed 100644 --- a/include/configs/katmai.h +++ b/include/configs/katmai.h @@ -360,7 +360,19 @@ EBC_BXCR_BW_16BIT) /* Memory Bank 1 (Xilinx System ACE controller) initialization */ -#define CFG_EBC_PB1AP 0x7F8FFE80 +#define CFG_EBC_PB1AP (EBC_BXAP_BME_DISABLED | \ + EBC_BXAP_TWT_ENCODE(4) | \ + EBC_BXAP_BCE_DISABLE | \ + EBC_BXAP_BCT_2TRANS | \ + EBC_BXAP_CSN_ENCODE(0) | \ + EBC_BXAP_OEN_ENCODE(0) | \ + EBC_BXAP_WBN_ENCODE(0) | \ + EBC_BXAP_WBF_ENCODE(0) | \ + EBC_BXAP_TH_ENCODE(0) | \ + EBC_BXAP_RE_DISABLED | \ + EBC_BXAP_SOR_NONDELAYED | \ + EBC_BXAP_BEM_WRITEONLY | \ + EBC_BXAP_PEN_DISABLED) #define CFG_EBC_PB1CR (EBC_BXCR_BAS_ENCODE(CFG_ACE_BASE) | \ EBC_BXCR_BS_1MB | \ EBC_BXCR_BU_RW | \