From bf62b2ddb074c22738b5c9e8dc6c1ecb5d2e5e97 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= Date: Sat, 21 Feb 2015 12:42:51 +0200 Subject: AMD fam10: Drop PCI_BUS_SEGN_BITS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit All boards in tree use 0. Looks like this is all work that was never completed and tested. We also have static setting sysconf.segbit=0 which would conflict with PCI_BUS_SEGN_BITS>0. Having PCI_BUS_SEGN_BITS>0 would also require PCI MMCONF support to cover over 255 buses. Change-Id: I060efc44d1560541473b01690c2e8192863c1eb5 Signed-off-by: Kyösti Mälkki Reviewed-on: http://review.coreboot.org/8554 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel --- src/northbridge/amd/amdfam10/debug.c | 4 ---- src/northbridge/amd/amdfam10/ht_config.c | 21 --------------------- src/northbridge/amd/amdfam10/ht_config.h | 2 -- src/northbridge/amd/amdfam10/northbridge.c | 9 ++------- 4 files changed, 2 insertions(+), 34 deletions(-) (limited to 'src/northbridge/amd') diff --git a/src/northbridge/amd/amdfam10/debug.c b/src/northbridge/amd/amdfam10/debug.c index d1fdaf832c..6aed390a6b 100644 --- a/src/northbridge/amd/amdfam10/debug.c +++ b/src/northbridge/amd/amdfam10/debug.c @@ -33,11 +33,7 @@ static inline void print_debug_addr(const char *str, void *val) static void print_debug_pci_dev(u32 dev) { -#if !CONFIG_PCI_BUS_SEGN_BITS printk(BIOS_DEBUG, "PCI: %02x:%02x.%02x", (dev>>20) & 0xff, (dev>>15) & 0x1f, (dev>>12) & 0x7); -#else - printk(BIOS_DEBUG, "PCI: %04x:%02x:%02x.%02x", (dev>>28) & 0x0f, (dev>>20) & 0xff, (dev>>15) & 0x1f, (dev>>12) & 0x7); -#endif } static inline void print_pci_devices(void) diff --git a/src/northbridge/amd/amdfam10/ht_config.c b/src/northbridge/amd/amdfam10/ht_config.c index cfd8a24526..efb3148470 100644 --- a/src/northbridge/amd/amdfam10/ht_config.c +++ b/src/northbridge/amd/amdfam10/ht_config.c @@ -76,27 +76,6 @@ void clear_config_map_reg(u32 nodeid, u32 linkn, u32 ht_c_index, } } -#if CONFIG_PCI_BUS_SEGN_BITS -u32 check_segn(device_t dev, u32 segbusn, u32 nodes, - sys_info_conf_t *sysinfo) -{ - //check segbusn here, We need every node have the same segn - if ((segbusn & 0xff)>(0xe0-1)) {// use next segn - u32 segn = (segbusn >> 8) & 0x0f; - segn++; - segbusn = segn<<8; - } - if (segbusn>>8) { - u32 val; - val = pci_read_config32(dev, 0x160); - val &= ~(0xf<<25); - val |= (segbusn & 0xf00)<<(25-8); - pci_write_config32(dev, 0x160, val); - } - - return segbusn; -} -#endif u32 get_ht_c_index(u32 nodeid, u32 linkn, sys_info_conf_t *sysinfo) { diff --git a/src/northbridge/amd/amdfam10/ht_config.h b/src/northbridge/amd/amdfam10/ht_config.h index 9b82f545b6..54356c1800 100644 --- a/src/northbridge/amd/amdfam10/ht_config.h +++ b/src/northbridge/amd/amdfam10/ht_config.h @@ -34,8 +34,6 @@ void set_config_map_reg(u32 nodeid, u32 linkn, u32 ht_c_index, u32 nodes); void clear_config_map_reg(u32 nodeid, u32 linkn, u32 ht_c_index, u32 busn_min, u32 busn_max, u32 nodes); -u32 check_segn(device_t dev, u32 segbusn, u32 nodes, - sys_info_conf_t *sysinfo); void store_ht_c_conf_bus(u32 nodeid, u32 linkn, u32 ht_c_index, u32 busn_min, u32 busn_max, diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c index 503dcf9d65..5ce7ae66d7 100644 --- a/src/northbridge/amd/amdfam10/northbridge.c +++ b/src/northbridge/amd/amdfam10/northbridge.c @@ -167,7 +167,6 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool u32 max_bus; u32 min_bus; u32 busses; - u32 segn = max>>8; #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 1 u32 busn = max&0xff; #endif @@ -211,7 +210,7 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool else { min_bus = ((busn>>3) + 1) << 3; // one node can have 8 link and segn is the same } - max = min_bus | (segn<<8); + max = min_bus; #else //other ... else { @@ -221,7 +220,7 @@ static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, bool #else min_bus = ++max; #endif - max_bus = 0xfc | (segn<<8); + max_bus = 0xfc; link->secondary = min_bus; link->subordinate = max_bus; @@ -299,10 +298,6 @@ static unsigned amdfam10_scan_chains(device_t dev, unsigned max) max = amdfam10_scan_chain(dev, nodeid, link, is_sblink, max); } -#if CONFIG_PCI_BUS_SEGN_BITS - max = check_segn(dev, max, sysconf.nodes, &sysconf); -#endif - for (link = dev->link_list; link; link = link->next) { bool is_sblink = (nodeid == 0) && (link->link_num == sblink); if ((CONFIG_SB_HT_CHAIN_ON_BUS0 > 0) && is_sblink) -- cgit v1.2.3