diff options
| author | Shuo Liu <shuo.liu@intel.com> | 2024-04-02 03:28:34 +0800 |
|---|---|---|
| committer | Lean Sheng Tan <sheng.tan@9elements.com> | 2024-04-05 10:07:21 +0000 |
| commit | 49437a6945d039bf5c39eef883d42cb63559b79e (patch) | |
| tree | abe6bc96c4eb6e7935680ed25288ec0edf453f1d /src/soc/intel/xeon_sp/cpx | |
| parent | d57d5e3b3737607e4351ba460d0248a195279f2d (diff) | |
soc/intel/xeon_sp: Share unlock_pam_regions()
unlock_pam_regions() is needed for SKX and CPX. Put the codes into
chip_gen1.c so that it could be shared among SoC generations.
After shared, unlock_pam_regions() is still called from SKX and
CPX SoC specific codes. SPR will also use chip_gen1.c, but it will
not call unlock_pam_regions().
TEST=Build and boot on intel/archercity CRB
Change-Id: Idbc7dc6dd22a1747a65543666fc714a0872e6b37
Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81619
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Diffstat (limited to 'src/soc/intel/xeon_sp/cpx')
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/chip.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/chip.c b/src/soc/intel/xeon_sp/cpx/chip.c index b0e61b62ae..9c86aee3fb 100644 --- a/src/soc/intel/xeon_sp/cpx/chip.c +++ b/src/soc/intel/xeon_sp/cpx/chip.c @@ -161,28 +161,6 @@ static void chip_final(void *data) set_bios_init_completion(); } -/* Only call this code from socket0! */ -static void unlock_pam_regions(void) -{ - uint32_t pam0123_unlock_dram = 0x33333330; - uint32_t pam456_unlock_dram = 0x00333333; - /* Get UBOX(1) for socket0 */ - uint32_t bus1 = socket0_get_ubox_busno(PCU_IIO_STACK); - - /* Assume socket0 owns PCI segment 0 */ - 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), - SAD_ALL_PAM456_CSR, pam456_unlock_dram); - - uint32_t reg1 = pci_io_read_config32(PCI_DEV(bus1, SAD_ALL_DEV, - SAD_ALL_FUNC), SAD_ALL_PAM0123_CSR); - uint32_t reg2 = pci_io_read_config32(PCI_DEV(bus1, SAD_ALL_DEV, - SAD_ALL_FUNC), SAD_ALL_PAM456_CSR); - printk(BIOS_DEBUG, "%s:%s pam0123_csr: 0x%x, pam456_csr: 0x%x\n", - __FILE__, __func__, reg1, reg2); -} - static void chip_init(void *data) { unlock_pam_regions(); |