diff options
Diffstat (limited to 'board/xes/common/fsl_8xxx_pci.c')
| -rw-r--r-- | board/xes/common/fsl_8xxx_pci.c | 435 |
1 files changed, 435 insertions, 0 deletions
diff --git a/board/xes/common/fsl_8xxx_pci.c b/board/xes/common/fsl_8xxx_pci.c new file mode 100644 index 0000000000..025cc1802d --- /dev/null +++ b/board/xes/common/fsl_8xxx_pci.c @@ -0,0 +1,435 @@ +/* + * 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 <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 = gur->devdisr; + uint io_sel = (gur->pordevsr & MPC8xxx_PORDEVSR_IO_SEL) >> + MPC8xxx_PORDEVSR_IO_SEL_SHIFT; + uint host_agent = (gur->porbmsr & MPC8xxx_PORBMSR_HA) >> + MPC8xxx_PORBMSR_HA_SHIFT; + struct pci_region *r; + +#ifdef CONFIG_PCI1 + uint pci_spd_norm = (gur->pordevsr & MPC85xx_PORDEVSR_PCI1_SPD); + uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; + uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; + uint pcix = 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"); + + /* inbound */ + r += fsl_pci_setup_inbound_windows(r); + + /* 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; + pci_setup_indirect(hose, (int)&pci->cfg_addr, + (int)&pci->cfg_data); + + fsl_pci_init(hose); + + /* 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 */ + gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */ +#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" : "End Point", width); + if (pci->pme_msg_det) { + pci->pme_msg_det = 0xffffffff; + debug(" with errors. Clearing. Now 0x%08x", + pci->pme_msg_det); + } + printf("\n"); + + /* inbound */ + r += fsl_pci_setup_inbound_windows(r); + + /* 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; + pci_setup_indirect(hose, (int)&pci->cfg_addr, + (int) &pci->cfg_data); + + fsl_pci_init(hose); + + /* 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 + gur->devdisr |= MPC8xxx_DEVDISR_PCIE1; /* disable */ +#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" : "End Point", width); + if (pci->pme_msg_det) { + pci->pme_msg_det = 0xffffffff; + debug(" with errors. Clearing. Now 0x%08x", + pci->pme_msg_det); + } + printf("\n"); + + /* inbound */ + r += fsl_pci_setup_inbound_windows(r); + + /* 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; + pci_setup_indirect(hose, (int)&pci->cfg_addr, + (int)&pci->cfg_data); + + fsl_pci_init(hose); + + /* 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 + gur->devdisr |= MPC8xxx_DEVDISR_PCIE2; /* disable */ +#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" : "End Point", width); + if (pci->pme_msg_det) { + pci->pme_msg_det = 0xffffffff; + debug(" with errors. Clearing. Now 0x%08x", + pci->pme_msg_det); + } + printf("\n"); + + /* inbound */ + r += fsl_pci_setup_inbound_windows(r); + + /* 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; + pci_setup_indirect(hose, (int)&pci->cfg_addr, + (int)&pci->cfg_data); + + fsl_pci_init(hose); + + /* 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 + gur->devdisr |= MPC8xxx_DEVDISR_PCIE3; /* disable */ +#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 */ |