From 04b1fc866930ee7a95ef70c9c5964d533ff030c7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= Date: Thu, 5 Feb 2015 13:36:54 +0200 Subject: AMD K8 fam10: Refactor logic around SB_HT_CHAIN_ON_BUS0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: I452a93af452073eeac4e6cb9bbc232dc59e911c1 Signed-off-by: Kyösti Mälkki Reviewed-on: http://review.coreboot.org/8365 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan Reviewed-by: Timothy Pearson --- src/northbridge/amd/amdfam10/northbridge.c | 14 +++----------- src/northbridge/amd/amdk8/northbridge.c | 12 ++++-------- 2 files changed, 7 insertions(+), 19 deletions(-) (limited to 'src') diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index fb963f6a70..98f41f3964 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -216,20 +216,12 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool * so we set the subordinate bus number to 0xff for the moment. */ - if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 0) { + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 == 0) || !is_sblink) max++; - } else if (is_sblink) { - } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 1) { - max++; - } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 > 1) { - // We can have 16 segmment and every segment have 256 bus, - // For that case need the kernel support mmio pci config. - - /* One node can have 8 link and segn is the same. */ - max++; + /* One node can have 8 link and segn is the same. */ + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 1) && !is_sblink) max = ALIGN_UP(max, 8); - } link->secondary = max; link->subordinate = link->secondary; diff --git a/src/northbridge/amd/amdk8/northbridge.c b/src/northbridge/amd/amdk8/northbridge.c index e08788848a..7184c38a70 100644 --- a/src/northbridge/amd/amdk8/northbridge.c +++ b/src/northbridge/amd/amdk8/northbridge.c @@ -178,17 +178,13 @@ static u32 amdk8_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool is_ * We have no idea how many busses are behind this bridge yet, * so we set the subordinate bus number to 0xff for the moment. */ - if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 0) { - max++; - } else if (is_sblink) { - } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 == 1) { - max++; - } else if (CONFIG_SB_HT_CHAIN_ON_BUS0 > 1) { - /* Second chain will be on 0x40, third 0x80, forth 0xc0. */ + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 == 0) || !is_sblink) max++; + + /* Second chain will be on 0x40, third 0x80, forth 0xc0. */ + if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 1) && !is_sblink) max = ALIGN_UP(max, 0x40); - } link->secondary = max; link->subordinate = link->secondary; -- cgit v1.2.3