| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Josh Boyer | 916 | 96.83% | 1 | 6.67% |
| Kyle Moffett | 6 | 0.63% | 3 | 20.00% |
| Kumar Gala | 5 | 0.53% | 1 | 6.67% |
| Thomas Gleixner | 4 | 0.42% | 2 | 13.33% |
| Nicholas Piggin | 3 | 0.32% | 1 | 6.67% |
| Mathieu Malaterre | 3 | 0.32% | 1 | 6.67% |
| Paul Gortmaker | 3 | 0.32% | 2 | 13.33% |
| Jon Loeliger | 3 | 0.32% | 1 | 6.67% |
| Benjamin Herrenschmidt | 1 | 0.11% | 1 | 6.67% |
| Daniel Axtens | 1 | 0.11% | 1 | 6.67% |
| Gabriel Craciunescu | 1 | 0.11% | 1 | 6.67% |
| Total | 946 | 15 |
// SPDX-License-Identifier: GPL-2.0-only /* * Board setup routines for the IBM 750GX/CL platform w/ TSI10x bridge * * Copyright 2007 IBM Corporation * * Stephen Winiecki <stevewin@us.ibm.com> * Josh Boyer <jwboyer@linux.vnet.ibm.com> * * Based on code from mpc7448_hpc2.c */ #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/pci.h> #include <linux/kdev_t.h> #include <linux/console.h> #include <linux/delay.h> #include <linux/irq.h> #include <linux/seq_file.h> #include <linux/root_dev.h> #include <linux/serial.h> #include <linux/tty.h> #include <linux/serial_core.h> #include <linux/of_platform.h> #include <linux/extable.h> #include <asm/time.h> #include <asm/machdep.h> #include <asm/prom.h> #include <asm/udbg.h> #include <asm/tsi108.h> #include <asm/pci-bridge.h> #include <asm/reg.h> #include <mm/mmu_decl.h> #include <asm/tsi108_irq.h> #include <asm/tsi108_pci.h> #include <asm/mpic.h> #undef DEBUG #define HOLLY_PCI_CFG_PHYS 0x7c000000 static int holly_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn) { if (bus == 0 && PCI_SLOT(devfn) == 0) return PCIBIOS_DEVICE_NOT_FOUND; else return PCIBIOS_SUCCESSFUL; } static void holly_remap_bridge(void) { u32 lut_val, lut_addr; int i; printk(KERN_INFO "Remapping PCI bridge\n"); /* Re-init the PCI bridge and LUT registers to have mappings that don't * rely on PIBS */ lut_addr = 0x900; for (i = 0; i < 31; i++) { tsi108_write_reg(TSI108_PB_OFFSET + lut_addr, 0x00000201); lut_addr += 4; tsi108_write_reg(TSI108_PB_OFFSET + lut_addr, 0x0); lut_addr += 4; } /* Reserve the last LUT entry for PCI I/O space */ tsi108_write_reg(TSI108_PB_OFFSET + lut_addr, 0x00000241); lut_addr += 4; tsi108_write_reg(TSI108_PB_OFFSET + lut_addr, 0x0); /* Map PCI I/O space */ tsi108_write_reg(TSI108_PCI_PFAB_IO_UPPER, 0x0); tsi108_write_reg(TSI108_PCI_PFAB_IO, 0x1); /* Map PCI CFG space */ tsi108_write_reg(TSI108_PCI_PFAB_BAR0_UPPER, 0x0); tsi108_write_reg(TSI108_PCI_PFAB_BAR0, 0x7c000000 | 0x01); /* We don't need MEM32 and PRM remapping so disable them */ tsi108_write_reg(TSI108_PCI_PFAB_MEM32, 0x0); tsi108_write_reg(TSI108_PCI_PFAB_PFM3, 0x0); tsi108_write_reg(TSI108_PCI_PFAB_PFM4, 0x0); /* Set P2O_BAR0 */ tsi108_write_reg(TSI108_PCI_P2O_BAR0_UPPER, 0x0); tsi108_write_reg(TSI108_PCI_P2O_BAR0, 0xc0000000); /* Init the PCI LUTs to do no remapping */ lut_addr = 0x500; lut_val = 0x00000002; for (i = 0; i < 32; i++) { tsi108_write_reg(TSI108_PCI_OFFSET + lut_addr, lut_val); lut_addr += 4; tsi108_write_reg(TSI108_PCI_OFFSET + lut_addr, 0x40000000); lut_addr += 4; lut_val += 0x02000000; } tsi108_write_reg(TSI108_PCI_P2O_PAGE_SIZES, 0x00007900); /* Set 64-bit PCI bus address for system memory */ tsi108_write_reg(TSI108_PCI_P2O_BAR2_UPPER, 0x0); tsi108_write_reg(TSI108_PCI_P2O_BAR2, 0x0); } static void __init holly_setup_arch(void) { struct device_node *np; if (ppc_md.progress) ppc_md.progress("holly_setup_arch():set_bridge", 0); tsi108_csr_vir_base = get_vir_csrbase(); /* setup PCI host bridge */ holly_remap_bridge(); np = of_find_node_by_type(NULL, "pci"); if (np) tsi108_setup_pci(np, HOLLY_PCI_CFG_PHYS, 1); ppc_md.pci_exclude_device = holly_exclude_device; if (ppc_md.progress) ppc_md.progress("tsi108: resources set", 0x100); printk(KERN_INFO "PPC750GX/CL Platform\n"); } /* * Interrupt setup and service. Interrupts on the holly come * from the four external INT pins, PCI interrupts are routed via * PCI interrupt control registers, it generates internal IRQ23 * * Interrupt routing on the Holly Board: * TSI108:PB_INT[0] -> CPU0:INT# * TSI108:PB_INT[1] -> CPU0:MCP# * TSI108:PB_INT[2] -> N/C * TSI108:PB_INT[3] -> N/C */ static void __init holly_init_IRQ(void) { struct mpic *mpic; #ifdef CONFIG_PCI unsigned int cascade_pci_irq; struct device_node *tsi_pci; struct device_node *cascade_node = NULL; #endif mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108, 24, 0, "Tsi108_PIC"); BUG_ON(mpic == NULL); mpic_assign_isu(mpic, 0, mpic->paddr + 0x100); mpic_init(mpic); #ifdef CONFIG_PCI tsi_pci = of_find_node_by_type(NULL, "pci"); if (tsi_pci == NULL) { printk(KERN_ERR "%s: No tsi108 pci node found !\n", __func__); return; } cascade_node = of_find_node_by_type(NULL, "pic-router"); if (cascade_node == NULL) { printk(KERN_ERR "%s: No tsi108 pci cascade node found !\n", __func__); return; } cascade_pci_irq = irq_of_parse_and_map(tsi_pci, 0); pr_debug("%s: tsi108 cascade_pci_irq = 0x%x\n", __func__, (u32) cascade_pci_irq); tsi108_pci_int_init(cascade_node); irq_set_handler_data(cascade_pci_irq, mpic); irq_set_chained_handler(cascade_pci_irq, tsi108_irq_cascade); #endif /* Configure MPIC outputs to CPU0 */ tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0); } static void holly_show_cpuinfo(struct seq_file *m) { seq_printf(m, "vendor\t\t: IBM\n"); seq_printf(m, "machine\t\t: PPC750 GX/CL\n"); } static void __noreturn holly_restart(char *cmd) { __be32 __iomem *ocn_bar1 = NULL; unsigned long bar; struct device_node *bridge = NULL; const void *prop; int size; phys_addr_t addr = 0xc0000000; local_irq_disable(); bridge = of_find_node_by_type(NULL, "tsi-bridge"); if (bridge) { prop = of_get_property(bridge, "reg", &size); addr = of_translate_address(bridge, prop); } addr += (TSI108_PB_OFFSET + 0x414); ocn_bar1 = ioremap(addr, 0x4); /* Turn on the BOOT bit so the addresses are correctly * routed to the HLP interface */ bar = ioread32be(ocn_bar1); bar |= 2; iowrite32be(bar, ocn_bar1); iosync(); /* Set SRR0 to the reset vector and turn on MSR_IP */ mtspr(SPRN_SRR0, 0xfff00100); mtspr(SPRN_SRR1, MSR_IP); /* Do an rfi to jump back to firmware. Somewhat evil, * but it works */ __asm__ __volatile__("rfi" : : : "memory"); /* Spin until reset happens. Shouldn't really get here */ for (;;) ; } /* * Called very early, device-tree isn't unflattened */ static int __init holly_probe(void) { if (!of_machine_is_compatible("ibm,holly")) return 0; return 1; } static int ppc750_machine_check_exception(struct pt_regs *regs) { const struct exception_table_entry *entry; /* Are we prepared to handle this fault */ if ((entry = search_exception_tables(regs->nip)) != NULL) { tsi108_clear_pci_cfg_error(); regs->msr |= MSR_RI; regs->nip = extable_fixup(entry); return 1; } return 0; } define_machine(holly){ .name = "PPC750 GX/CL TSI", .probe = holly_probe, .setup_arch = holly_setup_arch, .init_IRQ = holly_init_IRQ, .show_cpuinfo = holly_show_cpuinfo, .get_irq = mpic_get_irq, .restart = holly_restart, .calibrate_decr = generic_calibrate_decr, .machine_check_exception = ppc750_machine_check_exception, .progress = udbg_progress, };