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intel/xeon_sp/util: Use get_stack_busno instead of get_cpubusnos 

This function is more convenient to get the value of a single bus number
than get_cpubusnos(). Now get_cpubusnos is not used anywhere, so remove
it.

Change-Id: I71c06c2d69344d97e48609e67a3966ed8c671152
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49458
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Maxim Polyakov 2021-01-15 01:34:02 +03:00 committed by Patrick Georgi
parent f124939945
commit 19d4364ed6
2 changed files with 1 additions and 17 deletions
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1
src/soc/intel/xeon_sp/include/soc/util.h
View File

@ -6,7 +6,6 @@
#include <cpu/x86/msr.h>
#include <hob_iiouds.h>
void get_cpubusnos(uint32_t *bus0, uint32_t *bus1, uint32_t *bus2, uint32_t *bus3);
void unlock_pam_regions(void);
uint8_t get_stack_busno(const uint8_t stack);
msr_t read_msr_ppin(void);

17
src/soc/intel/xeon_sp/util.c
View File

@ -26,11 +26,10 @@ uint8_t get_stack_busno(const uint8_t stack)
void unlock_pam_regions(void)
{
uint32_t bus1 = 0;
uint32_t pam0123_unlock_dram = 0x33333330;
uint32_t pam456_unlock_dram = 0x00333333;
uint32_t bus1 = get_stack_busno(1);
get_cpubusnos(NULL, &bus1, NULL, NULL);
pci_io_write_config32(PCI_DEV(bus1, SAD_ALL_DEV, SAD_ALL_FUNC),
SAD_ALL_PAM0123_CSR, pam0123_unlock_dram);
pci_io_write_config32(PCI_DEV(bus1, SAD_ALL_DEV, SAD_ALL_FUNC),
@ -44,20 +43,6 @@ void unlock_pam_regions(void)
__FILE__, __func__, reg1, reg2);
}
void get_cpubusnos(uint32_t *bus0, uint32_t *bus1, uint32_t *bus2, uint32_t *bus3)
{
uint32_t bus = pci_io_read_config32(PCI_DEV(UBOX_DECS_BUS, UBOX_DECS_DEV,
UBOX_DECS_FUNC), UBOX_DECS_CPUBUSNO_CSR);
if (bus0)
*bus0 = (bus & 0xff);
if (bus1)
*bus1 = (bus >> 8) & 0xff;
if (bus2)
*bus2 = (bus >> 16) & 0xff;
if (bus3)
*bus3 = (bus >> 24) & 0xff;
}
msr_t read_msr_ppin(void)
{
msr_t ppin = {0};