| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <device/pci.h> |
| #include <soc/pci_devs.h> |
| #include <soc/util.h> |
| |
| void get_stack_busnos(uint32_t *bus) |
| { |
| uint32_t reg1, reg2; |
| |
| reg1 = pci_mmio_read_config32(PCI_DEV(UBOX_DECS_BUS, UBOX_DECS_DEV, UBOX_DECS_FUNC), |
| 0xcc); |
| reg2 = pci_mmio_read_config32(PCI_DEV(UBOX_DECS_BUS, UBOX_DECS_DEV, UBOX_DECS_FUNC), |
| 0xd0); |
| |
| for (int i = 0; i < 4; ++i) |
| bus[i] = ((reg1 >> (i * 8)) & 0xff); |
| for (int i = 0; i < 2; ++i) |
| bus[4+i] = ((reg2 >> (i * 8)) & 0xff); |
| } |
| |
| void unlock_pam_regions(void) |
| { |
| uint32_t bus1 = 0; |
| uint32_t pam0123_unlock_dram = 0x33333330; |
| uint32_t pam456_unlock_dram = 0x00333333; |
| |
| 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), |
| 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); |
| } |
| |
| 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; |
| } |