| /* |
| * Copyright 2008 Extreme Engineering Solutions, Inc. |
| * Copyright 2007-2008 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 <pci.h> |
| #include <asm/fsl_pci.h> |
| #include <asm/io.h> |
| #include <libfdt.h> |
| #include <fdt_support.h> |
| |
| int first_free_busno = 0; |
| |
| #ifdef CONFIG_PCI1 |
| static struct pci_controller pci1_hose; |
| #endif |
| #ifdef CONFIG_PCIE1 |
| static struct pci_controller pcie1_hose; |
| #endif |
| #ifdef CONFIG_PCIE2 |
| static struct pci_controller pcie2_hose; |
| #endif |
| #ifdef CONFIG_PCIE3 |
| static struct pci_controller pcie3_hose; |
| #endif |
| |
| #ifdef CONFIG_MPC8572 |
| /* Correlate host/agent POR bits to usable info. Table 4-14 */ |
| struct host_agent_cfg_t { |
| uchar pcie_root[3]; |
| uchar rio_host; |
| } host_agent_cfg[8] = { |
| {{0, 0, 0}, 0}, |
| {{0, 1, 1}, 1}, |
| {{1, 0, 1}, 0}, |
| {{1, 1, 0}, 1}, |
| {{0, 0, 1}, 0}, |
| {{0, 1, 0}, 1}, |
| {{1, 0, 0}, 0}, |
| {{1, 1, 1}, 1} |
| }; |
| |
| /* Correlate port width POR bits to usable info. Table 4-15 */ |
| struct io_port_cfg_t { |
| uchar pcie_width[3]; |
| uchar rio_width; |
| } io_port_cfg[16] = { |
| {{0, 0, 0}, 0}, |
| {{0, 0, 0}, 0}, |
| {{4, 0, 0}, 0}, |
| {{4, 4, 0}, 0}, |
| {{0, 0, 0}, 0}, |
| {{0, 0, 0}, 0}, |
| {{0, 0, 0}, 4}, |
| {{4, 2, 2}, 0}, |
| {{0, 0, 0}, 0}, |
| {{0, 0, 0}, 0}, |
| {{0, 0, 0}, 0}, |
| {{4, 0, 0}, 4}, |
| {{4, 0, 0}, 4}, |
| {{0, 0, 0}, 4}, |
| {{0, 0, 0}, 4}, |
| {{8, 0, 0}, 0}, |
| }; |
| #elif defined CONFIG_MPC8548 |
| /* Correlate host/agent POR bits to usable info. Table 4-12 */ |
| struct host_agent_cfg_t { |
| uchar pci_host[2]; |
| uchar pcie_root[1]; |
| uchar rio_host; |
| } host_agent_cfg[8] = { |
| {{1, 1}, {0}, 0}, |
| {{1, 1}, {1}, 0}, |
| {{1, 1}, {0}, 1}, |
| {{0, 0}, {0}, 0}, /* reserved */ |
| {{0, 1}, {1}, 0}, |
| {{1, 1}, {1}, 0}, |
| {{0, 1}, {1}, 1}, |
| {{1, 1}, {1}, 1} |
| }; |
| |
| /* Correlate port width POR bits to usable info. Table 4-13 */ |
| struct io_port_cfg_t { |
| uchar pcie_width[1]; |
| uchar rio_width; |
| } io_port_cfg[8] = { |
| {{0}, 0}, |
| {{0}, 0}, |
| {{0}, 0}, |
| {{4}, 4}, |
| {{4}, 4}, |
| {{0}, 4}, |
| {{0}, 4}, |
| {{8}, 0}, |
| }; |
| #elif defined CONFIG_MPC86xx |
| /* Correlate host/agent POR bits to usable info. Table 4-17 */ |
| struct host_agent_cfg_t { |
| uchar pcie_root[2]; |
| uchar rio_host; |
| } host_agent_cfg[8] = { |
| {{0, 0}, 0}, |
| {{1, 0}, 1}, |
| {{0, 1}, 0}, |
| {{1, 1}, 1} |
| }; |
| |
| /* Correlate port width POR bits to usable info. Table 4-16 */ |
| struct io_port_cfg_t { |
| uchar pcie_width[2]; |
| uchar rio_width; |
| } io_port_cfg[16] = { |
| {{0, 0}, 0}, |
| {{0, 0}, 0}, |
| {{8, 0}, 0}, |
| {{8, 8}, 0}, |
| {{0, 0}, 0}, |
| {{8, 0}, 4}, |
| {{8, 0}, 4}, |
| {{8, 0}, 4}, |
| {{0, 0}, 0}, |
| {{0, 0}, 4}, |
| {{0, 0}, 4}, |
| {{0, 0}, 4}, |
| {{0, 0}, 0}, |
| {{0, 0}, 0}, |
| {{0, 8}, 0}, |
| {{8, 8}, 0}, |
| }; |
| #endif |
| |
| /* |
| * 85xx and 86xx share naming conventions, but different layout. |
| * Correlate names to CPU-specific values to share common |
| * PCI code. |
| */ |
| #if defined(CONFIG_MPC85xx) |
| #define MPC8xxx_DEVDISR_PCIE1 MPC85xx_DEVDISR_PCIE |
| #define MPC8xxx_DEVDISR_PCIE2 MPC85xx_DEVDISR_PCIE2 |
| #define MPC8xxx_DEVDISR_PCIE3 MPC85xx_DEVDISR_PCIE3 |
| #define MPC8xxx_PORDEVSR_IO_SEL MPC85xx_PORDEVSR_IO_SEL |
| #define MPC8xxx_PORDEVSR_IO_SEL_SHIFT MPC85xx_PORDEVSR_IO_SEL_SHIFT |
| #define MPC8xxx_PORBMSR_HA MPC85xx_PORBMSR_HA |
| #define MPC8xxx_PORBMSR_HA_SHIFT MPC85xx_PORBMSR_HA_SHIFT |
| #elif defined(CONFIG_MPC86xx) |
| #define MPC8xxx_DEVDISR_PCIE1 MPC86xx_DEVDISR_PCIEX1 |
| #define MPC8xxx_DEVDISR_PCIE2 MPC86xx_DEVDISR_PCIEX2 |
| #define MPC8xxx_DEVDISR_PCIE3 0 /* 8641 doesn't have PCIe3 */ |
| #define MPC8xxx_PORDEVSR_IO_SEL MPC8641_PORDEVSR_IO_SEL |
| #define MPC8xxx_PORDEVSR_IO_SEL_SHIFT MPC8641_PORDEVSR_IO_SEL_SHIFT |
| #define MPC8xxx_PORBMSR_HA MPC8641_PORBMSR_HA |
| #define MPC8xxx_PORBMSR_HA_SHIFT MPC8641_PORBMSR_HA_SHIFT |
| #endif |
| |
| void pci_init_board(void) |
| { |
| struct pci_controller *hose; |
| volatile ccsr_fsl_pci_t *pci; |
| int width; |
| int host; |
| #if defined(CONFIG_MPC85xx) |
| volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); |
| #elif defined(CONFIG_MPC86xx) |
| immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; |
| volatile ccsr_gur_t *gur = &immap->im_gur; |
| #endif |
| uint devdisr = in_be32(&gur->devdisr); |
| uint io_sel = (in_be32(&gur->pordevsr) & MPC8xxx_PORDEVSR_IO_SEL) >> |
| MPC8xxx_PORDEVSR_IO_SEL_SHIFT; |
| uint host_agent = (in_be32(&gur->porbmsr) & MPC8xxx_PORBMSR_HA) >> |
| MPC8xxx_PORBMSR_HA_SHIFT; |
| struct pci_region *r; |
| |
| #ifdef CONFIG_PCI1 |
| uint pci_spd_norm = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_SPD; |
| uint pci_32 = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_PCI32; |
| uint pci_arb = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_ARB; |
| uint pcix = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1; |
| uint freq = CONFIG_SYS_CLK_FREQ / 1000 / 1000; |
| |
| width = 0; /* Silence compiler warning... */ |
| io_sel &= 0xf; /* Silence compiler warning... */ |
| pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR; |
| hose = &pci1_hose; |
| host = host_agent_cfg[host_agent].pci_host[0]; |
| r = hose->regions; |
| |
| if (!(devdisr & MPC85xx_DEVDISR_PCI1)) { |
| printf("\n PCI1: %d bit %s, %s %d MHz, %s, %s\n", |
| pci_32 ? 32 : 64, |
| pcix ? "PCIX" : "PCI", |
| pci_spd_norm ? ">=" : "<=", |
| pcix ? freq * 2 : freq, |
| host ? "host" : "agent", |
| pci_arb ? "arbiter" : "external-arbiter"); |
| |
| /* outbound memory */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCI1_MEM_BASE, |
| CONFIG_SYS_PCI1_MEM_PHYS, |
| CONFIG_SYS_PCI1_MEM_SIZE, |
| PCI_REGION_MEM); |
| |
| /* outbound io */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCI1_IO_BASE, |
| CONFIG_SYS_PCI1_IO_PHYS, |
| CONFIG_SYS_PCI1_IO_SIZE, |
| PCI_REGION_IO); |
| |
| hose->region_count = r - hose->regions; |
| |
| hose->first_busno = first_free_busno; |
| |
| fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data); |
| |
| /* Unlock inbound PCI configuration cycles */ |
| if (!host) |
| fsl_pci_config_unlock(hose); |
| |
| first_free_busno = hose->last_busno + 1; |
| printf(" PCI1 on bus %02x - %02x\n", |
| hose->first_busno, hose->last_busno); |
| } else { |
| printf(" PCI1: disabled\n"); |
| } |
| #elif defined CONFIG_MPC8548 |
| /* PCI1 not present on MPC8572 */ |
| setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); |
| #endif |
| #ifdef CONFIG_PCIE1 |
| pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR; |
| hose = &pcie1_hose; |
| host = host_agent_cfg[host_agent].pcie_root[0]; |
| width = io_port_cfg[io_sel].pcie_width[0]; |
| r = hose->regions; |
| |
| if (width && !(devdisr & MPC8xxx_DEVDISR_PCIE1)) { |
| printf("\n PCIE1 connected as %s (x%d)", |
| host ? "Root Complex" : "Endpoint", width); |
| if (in_be32(&pci->pme_msg_det)) { |
| out_be32(&pci->pme_msg_det, 0xffffffff); |
| debug(" with errors. Clearing. Now 0x%08x", |
| in_be32(&pci->pme_msg_det)); |
| } |
| printf("\n"); |
| |
| /* outbound memory */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCIE1_MEM_BASE, |
| CONFIG_SYS_PCIE1_MEM_PHYS, |
| CONFIG_SYS_PCIE1_MEM_SIZE, |
| PCI_REGION_MEM); |
| |
| /* outbound io */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCIE1_IO_BASE, |
| CONFIG_SYS_PCIE1_IO_PHYS, |
| CONFIG_SYS_PCIE1_IO_SIZE, |
| PCI_REGION_IO); |
| |
| hose->region_count = r - hose->regions; |
| |
| hose->first_busno = first_free_busno; |
| |
| fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data); |
| |
| /* Unlock inbound PCI configuration cycles */ |
| if (!host) |
| fsl_pci_config_unlock(hose); |
| |
| first_free_busno = hose->last_busno + 1; |
| printf(" PCIE1 on bus %02x - %02x\n", |
| hose->first_busno, hose->last_busno); |
| } |
| #else |
| setbits_be32(&gur->devdisr, MPC8xxx_DEVDISR_PCIE1); |
| #endif /* CONFIG_PCIE1 */ |
| |
| #ifdef CONFIG_PCIE2 |
| pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE2_ADDR; |
| hose = &pcie2_hose; |
| host = host_agent_cfg[host_agent].pcie_root[1]; |
| width = io_port_cfg[io_sel].pcie_width[1]; |
| r = hose->regions; |
| |
| if (width && !(devdisr & MPC8xxx_DEVDISR_PCIE2)) { |
| printf("\n PCIE2 connected as %s (x%d)", |
| host ? "Root Complex" : "Endpoint", width); |
| if (in_be32(&pci->pme_msg_det)) { |
| out_be32(&pci->pme_msg_det, 0xffffffff); |
| debug(" with errors. Clearing. Now 0x%08x", |
| in_be32(&pci->pme_msg_det)); |
| } |
| printf("\n"); |
| |
| /* outbound memory */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCIE2_MEM_BASE, |
| CONFIG_SYS_PCIE2_MEM_PHYS, |
| CONFIG_SYS_PCIE2_MEM_SIZE, |
| PCI_REGION_MEM); |
| |
| /* outbound io */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCIE2_IO_BASE, |
| CONFIG_SYS_PCIE2_IO_PHYS, |
| CONFIG_SYS_PCIE2_IO_SIZE, |
| PCI_REGION_IO); |
| |
| hose->region_count = r - hose->regions; |
| |
| hose->first_busno = first_free_busno; |
| |
| fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data); |
| |
| /* Unlock inbound PCI configuration cycles */ |
| if (!host) |
| fsl_pci_config_unlock(hose); |
| |
| first_free_busno = hose->last_busno + 1; |
| printf(" PCIE2 on bus %02x - %02x\n", |
| hose->first_busno, hose->last_busno); |
| } |
| #else |
| setbits_be32(&gur->devdisr, MPC8xxx_DEVDISR_PCIE2); |
| #endif /* CONFIG_PCIE2 */ |
| |
| #ifdef CONFIG_PCIE3 |
| pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE3_ADDR; |
| hose = &pcie3_hose; |
| host = host_agent_cfg[host_agent].pcie_root[2]; |
| width = io_port_cfg[io_sel].pcie_width[2]; |
| r = hose->regions; |
| |
| if (width && !(devdisr & MPC8xxx_DEVDISR_PCIE3)) { |
| printf("\n PCIE3 connected as %s (x%d)", |
| host ? "Root Complex" : "Endpoint", width); |
| if (in_be32(&pci->pme_msg_det)) { |
| out_be32(&pci->pme_msg_det, 0xffffffff); |
| debug(" with errors. Clearing. Now 0x%08x", |
| in_be32(&pci->pme_msg_det)); |
| } |
| printf("\n"); |
| |
| /* outbound memory */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCIE3_MEM_BASE, |
| CONFIG_SYS_PCIE3_MEM_PHYS, |
| CONFIG_SYS_PCIE3_MEM_SIZE, |
| PCI_REGION_MEM); |
| |
| /* outbound io */ |
| pci_set_region(r++, |
| CONFIG_SYS_PCIE3_IO_BASE, |
| CONFIG_SYS_PCIE3_IO_PHYS, |
| CONFIG_SYS_PCIE3_IO_SIZE, |
| PCI_REGION_IO); |
| |
| hose->region_count = r - hose->regions; |
| |
| hose->first_busno = first_free_busno; |
| |
| fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data); |
| |
| /* Unlock inbound PCI configuration cycles */ |
| if (!host) |
| fsl_pci_config_unlock(hose); |
| |
| first_free_busno = hose->last_busno + 1; |
| printf(" PCIE3 on bus %02x - %02x\n", |
| hose->first_busno, hose->last_busno); |
| } |
| #else |
| setbits_be32(&gur->devdisr, MPC8xxx_DEVDISR_PCIE3); |
| #endif /* CONFIG_PCIE3 */ |
| } |
| |
| #if defined(CONFIG_OF_BOARD_SETUP) |
| void ft_board_pci_setup(void *blob, bd_t *bd) |
| { |
| /* TODO - make node name (eg pci0) dynamic */ |
| #ifdef CONFIG_PCI1 |
| ft_fsl_pci_setup(blob, "pci0", &pci1_hose); |
| #endif |
| #ifdef CONFIG_PCIE1 |
| ft_fsl_pci_setup(blob, "pci2", &pcie1_hose); |
| #endif |
| #ifdef CONFIG_PCIE2 |
| ft_fsl_pci_setup(blob, "pci1", &pcie2_hose); |
| #endif |
| #ifdef CONFIG_PCIE3 |
| ft_fsl_pci_setup(blob, "pci0", &pcie3_hose); |
| #endif |
| } |
| #endif /* CONFIG_OF_BOARD_SETUP */ |