diff options
Diffstat (limited to 'src/soc/intel/xeon_sp/skx')
| -rw-r--r-- | src/soc/intel/xeon_sp/skx/include/soc/soc_util.h | 1 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/skx/soc_util.c | 28 |
2 files changed, 29 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h b/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h index 25668301a4..cce542a1d5 100644 --- a/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h +++ b/src/soc/intel/xeon_sp/skx/include/soc/soc_util.h @@ -27,5 +27,6 @@ const struct SystemMemoryMapHob *get_system_memory_map(void); void set_bios_init_completion(void); unsigned int soc_get_num_cpus(void); +int soc_get_stack_for_port(int port); #endif /* _SOC_UTIL_H_ */ diff --git a/src/soc/intel/xeon_sp/skx/soc_util.c b/src/soc/intel/xeon_sp/skx/soc_util.c index 7dd954fd66..3af6483dfe 100644 --- a/src/soc/intel/xeon_sp/skx/soc_util.c +++ b/src/soc/intel/xeon_sp/skx/soc_util.c @@ -394,4 +394,32 @@ void xeonsp_init_cpu_config(void) } } +/* + * EX: SKX-SP + * Ports Stack Stack(HOB) IioConfigIou + * ========================================== + * 0 CSTACK stack 0 IOU0 + * 1A..1D PSTACKZ stack 1 IOU1 + * 2A..2D PSTACK1 stack 2 IOU2 + * 3A..3D PSTACK2 stack 3 IOU3 + * 5A..4D PSTACK3 stack 4 IOU4 + * 5A..5D PSTACK4 stack 5 IOU5 + */ +int soc_get_stack_for_port(int port) +{ + if (port == PORT_0) + return CSTACK; + else if (port >= PORT_1A && port <= PORT_1D) + return PSTACK0; + else if (port >= PORT_2A && port <= PORT_2D) + return PSTACK1; + else if (port >= PORT_3A && port <= PORT_3D) + return PSTACK2; + else if (port >= PORT_4A && port <= PORT_4D) + return PSTACK3; // MCP0 + else if (port >= PORT_5A && port <= PORT_5D) + return PSTACK4; // MCP1 + else + return -1; +} #endif |