diff options
Diffstat (limited to 'src/mainboard/asus')
| -rw-r--r-- | src/mainboard/asus/m4a78-em/romstage.c | 34 | ||||
| -rw-r--r-- | src/mainboard/asus/m4a785-m/romstage.c | 34 |
2 files changed, 68 insertions, 0 deletions
diff --git a/src/mainboard/asus/m4a78-em/romstage.c b/src/mainboard/asus/m4a78-em/romstage.c index 99cd405064..4c9543beb1 100644 --- a/src/mainboard/asus/m4a78-em/romstage.c +++ b/src/mainboard/asus/m4a78-em/romstage.c @@ -232,3 +232,37 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) post_cache_as_ram(); // BSP switch stack to ram, copy then execute LB. post_code(0x43); // Should never see this post code. } + +/** + * BOOL AMD_CB_ManualBUIDSwapList(u8 Node, u8 Link, u8 **List) + * Description: + * This routine is called every time a non-coherent chain is processed. + * BUID assignment may be controlled explicitly on a non-coherent chain. Provide a + * swap list. The first part of the list controls the BUID assignment and the + * second part of the list provides the device to device linking. Device orientation + * can be detected automatically, or explicitly. See documentation for more details. + * + * Automatic non-coherent init assigns BUIDs starting at 1 and incrementing sequentially + * based on each device's unit count. + * + * Parameters: + * @param[in] u8 node = The node on which this chain is located + * @param[in] u8 link = The link on the host for this chain + * @param[out] u8** list = supply a pointer to a list + * @param[out] BOOL result = true to use a manual list + * false to initialize the link automatically + */ +BOOL AMD_CB_ManualBUIDSwapList (u8 node, u8 link, const u8 **List) +{ + static const u8 swaplist[] = { 0xFF, CONFIG_HT_CHAIN_UNITID_BASE, CONFIG_HT_CHAIN_END_UNITID_BASE, 0xFF }; + /* If the BUID was adjusted in early_ht we need to do the manual override */ + if ((CONFIG_HT_CHAIN_UNITID_BASE != 0) && (CONFIG_HT_CHAIN_END_UNITID_BASE != 0)) { + printk(BIOS_DEBUG, "AMD_CB_ManualBUIDSwapList()\n"); + if ((node == 0) && (link == 0)) { /* BSP SB link */ + *List = swaplist; + return 1; + } + } + + return 0; +} diff --git a/src/mainboard/asus/m4a785-m/romstage.c b/src/mainboard/asus/m4a785-m/romstage.c index 99cd405064..4c9543beb1 100644 --- a/src/mainboard/asus/m4a785-m/romstage.c +++ b/src/mainboard/asus/m4a785-m/romstage.c @@ -232,3 +232,37 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) post_cache_as_ram(); // BSP switch stack to ram, copy then execute LB. post_code(0x43); // Should never see this post code. } + +/** + * BOOL AMD_CB_ManualBUIDSwapList(u8 Node, u8 Link, u8 **List) + * Description: + * This routine is called every time a non-coherent chain is processed. + * BUID assignment may be controlled explicitly on a non-coherent chain. Provide a + * swap list. The first part of the list controls the BUID assignment and the + * second part of the list provides the device to device linking. Device orientation + * can be detected automatically, or explicitly. See documentation for more details. + * + * Automatic non-coherent init assigns BUIDs starting at 1 and incrementing sequentially + * based on each device's unit count. + * + * Parameters: + * @param[in] u8 node = The node on which this chain is located + * @param[in] u8 link = The link on the host for this chain + * @param[out] u8** list = supply a pointer to a list + * @param[out] BOOL result = true to use a manual list + * false to initialize the link automatically + */ +BOOL AMD_CB_ManualBUIDSwapList (u8 node, u8 link, const u8 **List) +{ + static const u8 swaplist[] = { 0xFF, CONFIG_HT_CHAIN_UNITID_BASE, CONFIG_HT_CHAIN_END_UNITID_BASE, 0xFF }; + /* If the BUID was adjusted in early_ht we need to do the manual override */ + if ((CONFIG_HT_CHAIN_UNITID_BASE != 0) && (CONFIG_HT_CHAIN_END_UNITID_BASE != 0)) { + printk(BIOS_DEBUG, "AMD_CB_ManualBUIDSwapList()\n"); + if ((node == 0) && (link == 0)) { /* BSP SB link */ + *List = swaplist; + return 1; + } + } + + return 0; +} |