diff options
Diffstat (limited to 'cpu/mpc8xxx/pci_cfg.c')
| -rw-r--r-- | cpu/mpc8xxx/pci_cfg.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/cpu/mpc8xxx/pci_cfg.c b/cpu/mpc8xxx/pci_cfg.c new file mode 100644 index 0000000..9c7d92c --- /dev/null +++ b/cpu/mpc8xxx/pci_cfg.c @@ -0,0 +1,225 @@ +/* + * Copyright 2009 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/fsl_law.h> +#include <pci.h> + +struct pci_info { + u16 agent; + u16 cfg; +}; + +/* The agent field is a bit mask in which each bit represents the value of + * cfg_host_agt[] signal and the bit is set of the given interface would be + * in agent/end-point mode for the given interface. + * + * The same idea is true of the cfg field. The bit will be set if the + * interface would be enabled based on the value of cfg_IO_ports[] signal + * + * On MPC86xx/PQ3 based systems: + * we extract cfg_host_agt from GUTS register PORBMSR + * we extract cfg_IO_ports from GUTS register PORDEVSR + * + * cfg_IO_ports only exist on systems w/PCIe (we set cfg 0 for systems + * without PCIe) + */ + +#if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8560) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .agent = (1 << 0) | (1 << 2), + .cfg = 0, + }, +}; +#elif defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .agent = (1 << 0), + .cfg = 0, + }, +}; +#elif defined(CONFIG_MPC8536) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .agent = (1 << 6), + .cfg = 0, + }, + [LAW_TRGT_IF_PCIE_1] = { + .agent = (1 << 5), + .cfg = (1 << 2) | (1 << 3) | (1 << 5) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_2] = { + .agent = (1 << 3), + .cfg = (1 << 5) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_3] = { + .agent = (1 << 1), + .cfg = (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8544) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .agent = (1 << 6), + .cfg = 0, + }, + [LAW_TRGT_IF_PCIE_1] = { + .agent = (1 << 5), + .cfg = (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | + (1 << 6) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_2] = { + .agent = (1 << 3), + .cfg = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_3] = { + .agent = (1 << 1), + .cfg = (1 << 6) | (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8548) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI_1] = { + .agent = (1 << 4) | (1 << 6), + .cfg = 0, + }, + [LAW_TRGT_IF_PCI_2] = { + .agent = (1 << 4) | (1 << 6), + .cfg = 0, + }, + /* PCI_2 is always host and we dont use iosel to determine enable/disable */ + [LAW_TRGT_IF_PCIE_1] = { + .agent = (1 << 0) | (1 << 2), + .cfg = (1 << 3) | (1 << 4) | (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8568) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI] = { + .agent = (1 << 0) | (1 << 4) | (1 << 6), + .cfg = 0, + }, + [LAW_TRGT_IF_PCIE_1] = { + .agent = (1 << 0) | (1 << 2) | (1 << 4), + .cfg = (1 << 3) | (1 << 4) | (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8569) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .agent = (1 << 0) | (1 << 6), + .cfg = (1 << 0) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7) | + (1 << 8) | (1 << 0xc) | (1 << 0xf), + }, +}; +#elif defined(CONFIG_MPC8572) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .agent = (1 << 0) | (1 << 1) | (1 << 4) | (1 << 5), + .cfg = (1 << 2) | (1 << 3) | (1 << 7) | + (1 << 0xb) | (1 << 0xc) | (1 << 0xf), + }, + [LAW_TRGT_IF_PCIE_2] = { + .agent = (1 << 0) | (1 << 2) | (1 << 4) | (1 << 6), + .cfg = (1 << 3) | (1 << 7), + }, + [LAW_TRGT_IF_PCIE_3] = { + .agent = (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6), + .cfg = (1 << 7), + }, +}; +#elif defined(CONFIG_MPC8610) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCI_1] = { + .agent = (1 << 4) | (1 << 5) | (1 << 6), + .cfg = 0, + }, + [LAW_TRGT_IF_PCIE_1] = { + .agent = (1 << 0) | (1 << 2) | (1 << 5), + .cfg = (1 << 1) | (1 << 4), + }, + [LAW_TRGT_IF_PCIE_2] = { + .agent = (1 << 0) | (1 << 1) | (1 << 4), + .cfg = (1 << 0) | (1 << 4), + }, +}; +#elif defined(CONFIG_MPC8641) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .agent = 0, /* we dont use agent on 8641 */ + .cfg = (1 << 2) | (1 << 3) | (1 << 5) | (1 << 6) | + (1 << 7) | (1 << 0xe) | (1 << 0xf), + }, +}; +#elif defined(CONFIG_P1011) || defined(CONFIG_P1020) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .agent = (1 << 0) | (1 << 1), + .cfg = (1 << 0) | (1 << 6) | (1 << 0xe) | (1 << 0xf), + }, + [LAW_TRGT_IF_PCIE_2] = { + .agent = (1 << 0) | (1 << 2), + .cfg = (1 << 0xe), + }, +}; +#elif defined(CONFIG_P2010) || defined(CONFIG_P2020) +static struct pci_info pci_config_info[] = +{ + [LAW_TRGT_IF_PCIE_1] = { + .agent = (1 << 0) | (1 << 1) | (1 << 4) | (1 << 5), + .cfg = (1 << 0) | (1 << 2) | (1 << 4) | (1 << 6) | + (1 << 0xd) | (1 << 0xe) | (1 << 0xf), + }, + [LAW_TRGT_IF_PCIE_2] = { + .agent = (1 << 0) | (1 << 2) | (1 << 4) | (1 << 6), + .cfg = (1 << 2) | (1 << 0xe), + }, + [LAW_TRGT_IF_PCIE_3] = { + .agent = (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6), + .cfg = (1 << 2) | (1 << 4), + }, +}; +#else +#error Need to define pci_config_info for processor +#endif + +int is_fsl_pci_agent(enum law_trgt_if trgt, u32 host_agent) +{ + return ((1 << host_agent) & pci_config_info[trgt].agent); +} + +int is_fsl_pci_cfg(enum law_trgt_if trgt, u32 io_sel) +{ + return ((1 << io_sel) & pci_config_info[trgt].cfg); +} |