diff options
Diffstat (limited to 'arch/ppc/platforms/4xx/yucca.c')
| -rw-r--r-- | arch/ppc/platforms/4xx/yucca.c | 393 |
1 files changed, 0 insertions, 393 deletions
diff --git a/arch/ppc/platforms/4xx/yucca.c b/arch/ppc/platforms/4xx/yucca.c deleted file mode 100644 index f6cfd44281fc..000000000000 --- a/arch/ppc/platforms/4xx/yucca.c +++ /dev/null @@ -1,393 +0,0 @@ -/* - * Yucca board specific routines - * - * Roland Dreier <rolandd@cisco.com> (based on luan.c by Matt Porter) - * - * Copyright 2004-2005 MontaVista Software Inc. - * Copyright (c) 2005 Cisco Systems. All rights reserved. - * - * 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. - */ - -#include <linux/stddef.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/reboot.h> -#include <linux/pci.h> -#include <linux/kdev_t.h> -#include <linux/types.h> -#include <linux/major.h> -#include <linux/blkdev.h> -#include <linux/console.h> -#include <linux/delay.h> -#include <linux/initrd.h> -#include <linux/seq_file.h> -#include <linux/root_dev.h> -#include <linux/tty.h> -#include <linux/serial.h> -#include <linux/serial_core.h> -#include <linux/serial_8250.h> - -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/dma.h> -#include <asm/io.h> -#include <asm/machdep.h> -#include <asm/ocp.h> -#include <asm/pci-bridge.h> -#include <asm/time.h> -#include <asm/todc.h> -#include <asm/bootinfo.h> -#include <asm/ppc4xx_pic.h> -#include <asm/ppcboot.h> - -#include <syslib/ibm44x_common.h> -#include <syslib/ibm440gx_common.h> -#include <syslib/ibm440sp_common.h> -#include <syslib/ppc440spe_pcie.h> - -extern bd_t __res; - -static struct ibm44x_clocks clocks __initdata; - -static void __init -yucca_calibrate_decr(void) -{ - unsigned int freq; - - if (mfspr(SPRN_CCR1) & CCR1_TCS) - freq = YUCCA_TMR_CLK; - else - freq = clocks.cpu; - - ibm44x_calibrate_decr(freq); -} - -static int -yucca_show_cpuinfo(struct seq_file *m) -{ - seq_printf(m, "vendor\t\t: AMCC\n"); - seq_printf(m, "machine\t\t: PPC440SPe EVB (Yucca)\n"); - - return 0; -} - -static enum { - HOSE_UNKNOWN, - HOSE_PCIX, - HOSE_PCIE0, - HOSE_PCIE1, - HOSE_PCIE2 -} hose_type[4]; - -static inline int -yucca_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - struct pci_controller *hose = pci_bus_to_hose(dev->bus->number); - - if (hose_type[hose->index] == HOSE_PCIX) { - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - { 81, -1, -1, -1 }, /* IDSEL 1 - PCIX0 Slot 0 */ - }; - const long min_idsel = 1, max_idsel = 1, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; - } else if (hose_type[hose->index] == HOSE_PCIE0) { - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - { 96, 97, 98, 99 }, - }; - const long min_idsel = 1, max_idsel = 1, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; - } else if (hose_type[hose->index] == HOSE_PCIE1) { - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - { 100, 101, 102, 103 }, - }; - const long min_idsel = 1, max_idsel = 1, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; - } else if (hose_type[hose->index] == HOSE_PCIE2) { - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - { 104, 105, 106, 107 }, - }; - const long min_idsel = 1, max_idsel = 1, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; - } - return -1; -} - -static void __init yucca_set_emacdata(void) -{ - struct ocp_def *def; - struct ocp_func_emac_data *emacdata; - - /* Set phy_map, phy_mode, and mac_addr for the EMAC */ - def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 0); - emacdata = def->additions; - emacdata->phy_map = 0x00000001; /* Skip 0x00 */ - emacdata->phy_mode = PHY_MODE_GMII; - memcpy(emacdata->mac_addr, __res.bi_enetaddr, 6); -} - -static int __init yucca_pcie_card_present(int port) -{ - void __iomem *pcie_fpga_base; - u16 reg; - - pcie_fpga_base = ioremap64(YUCCA_FPGA_REG_BASE, YUCCA_FPGA_REG_SIZE); - reg = in_be16(pcie_fpga_base + FPGA_REG1C); - iounmap(pcie_fpga_base); - - switch(port) { - case 0: return !(reg & FPGA_REG1C_PE0_PRSNT); - case 1: return !(reg & FPGA_REG1C_PE1_PRSNT); - case 2: return !(reg & FPGA_REG1C_PE2_PRSNT); - default: return 0; - } -} - -/* - * For the given slot, set rootpoint mode, send power to the slot, - * turn on the green LED and turn off the yellow LED, enable the clock - * and turn off reset. - */ -static void __init yucca_setup_pcie_fpga_rootpoint(int port) -{ - void __iomem *pcie_reg_fpga_base; - u16 power, clock, green_led, yellow_led, reset_off, rootpoint, endpoint; - - pcie_reg_fpga_base = ioremap64(YUCCA_FPGA_REG_BASE, YUCCA_FPGA_REG_SIZE); - - switch(port) { - case 0: - rootpoint = FPGA_REG1C_PE0_ROOTPOINT; - endpoint = 0; - power = FPGA_REG1A_PE0_PWRON; - green_led = FPGA_REG1A_PE0_GLED; - clock = FPGA_REG1A_PE0_REFCLK_ENABLE; - yellow_led = FPGA_REG1A_PE0_YLED; - reset_off = FPGA_REG1C_PE0_PERST; - break; - case 1: - rootpoint = 0; - endpoint = FPGA_REG1C_PE1_ENDPOINT; - power = FPGA_REG1A_PE1_PWRON; - green_led = FPGA_REG1A_PE1_GLED; - clock = FPGA_REG1A_PE1_REFCLK_ENABLE; - yellow_led = FPGA_REG1A_PE1_YLED; - reset_off = FPGA_REG1C_PE1_PERST; - break; - case 2: - rootpoint = 0; - endpoint = FPGA_REG1C_PE2_ENDPOINT; - power = FPGA_REG1A_PE2_PWRON; - green_led = FPGA_REG1A_PE2_GLED; - clock = FPGA_REG1A_PE2_REFCLK_ENABLE; - yellow_led = FPGA_REG1A_PE2_YLED; - reset_off = FPGA_REG1C_PE2_PERST; - break; - - default: - iounmap(pcie_reg_fpga_base); - return; - } - - out_be16(pcie_reg_fpga_base + FPGA_REG1A, - ~(power | clock | green_led) & - (yellow_led | in_be16(pcie_reg_fpga_base + FPGA_REG1A))); - out_be16(pcie_reg_fpga_base + FPGA_REG1C, - ~(endpoint | reset_off) & - (rootpoint | in_be16(pcie_reg_fpga_base + FPGA_REG1C))); - - /* - * Leave device in reset for a while after powering on the - * slot to give it a chance to initialize. - */ - mdelay(250); - - out_be16(pcie_reg_fpga_base + FPGA_REG1C, - reset_off | in_be16(pcie_reg_fpga_base + FPGA_REG1C)); - - iounmap(pcie_reg_fpga_base); -} - -static void __init -yucca_setup_hoses(void) -{ - struct pci_controller *hose; - char name[20]; - int i; - - if (0 && ppc440spe_init_pcie()) { - printk(KERN_WARNING "PPC440SPe PCI Express initialization failed\n"); - return; - } - - for (i = 0; i <= 2; ++i) { - if (!yucca_pcie_card_present(i)) - continue; - - printk(KERN_INFO "PCIE%d: card present\n", i); - yucca_setup_pcie_fpga_rootpoint(i); - if (ppc440spe_init_pcie_rootport(i)) { - printk(KERN_WARNING "PCIE%d: initialization failed\n", i); - continue; - } - - hose = pcibios_alloc_controller(); - if (!hose) - return; - - sprintf(name, "PCIE%d host bridge", i); - pci_init_resource(&hose->io_resource, - YUCCA_PCIX_LOWER_IO, - YUCCA_PCIX_UPPER_IO, - IORESOURCE_IO, - name); - - hose->mem_space.start = YUCCA_PCIE_LOWER_MEM + - i * YUCCA_PCIE_MEM_SIZE; - hose->mem_space.end = hose->mem_space.start + - YUCCA_PCIE_MEM_SIZE - 1; - - pci_init_resource(&hose->mem_resources[0], - hose->mem_space.start, - hose->mem_space.end, - IORESOURCE_MEM, - name); - - hose->first_busno = 0; - hose->last_busno = 15; - hose_type[hose->index] = HOSE_PCIE0 + i; - - ppc440spe_setup_pcie(hose, i); - hose->last_busno = pciauto_bus_scan(hose, hose->first_busno); - } - - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = yucca_map_irq; -} - -TODC_ALLOC(); - -static void __init -yucca_early_serial_map(void) -{ - struct uart_port port; - - /* Setup ioremapped serial port access */ - memset(&port, 0, sizeof(port)); - port.membase = ioremap64(PPC440SPE_UART0_ADDR, 8); - port.irq = UART0_INT; - port.uartclk = clocks.uart0; - port.regshift = 0; - port.iotype = UPIO_MEM; - port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; - port.line = 0; - - if (early_serial_setup(&port) != 0) { - printk("Early serial init of port 0 failed\n"); - } - - port.membase = ioremap64(PPC440SPE_UART1_ADDR, 8); - port.irq = UART1_INT; - port.uartclk = clocks.uart1; - port.line = 1; - - if (early_serial_setup(&port) != 0) { - printk("Early serial init of port 1 failed\n"); - } - - port.membase = ioremap64(PPC440SPE_UART2_ADDR, 8); - port.irq = UART2_INT; - port.uartclk = BASE_BAUD; - port.line = 2; - - if (early_serial_setup(&port) != 0) { - printk("Early serial init of port 2 failed\n"); - } -} - -static void __init -yucca_setup_arch(void) -{ - yucca_set_emacdata(); - -#if !defined(CONFIG_BDI_SWITCH) - /* - * The Abatron BDI JTAG debugger does not tolerate others - * mucking with the debug registers. - */ - mtspr(SPRN_DBCR0, (DBCR0_TDE | DBCR0_IDM)); -#endif - - /* - * Determine various clocks. - * To be completely correct we should get SysClk - * from FPGA, because it can be changed by on-board switches - * --ebs - */ - /* 440GX and 440SPe clocking is the same - rd */ - ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200); - ocp_sys_info.opb_bus_freq = clocks.opb; - - /* init to some ~sane value until calibrate_delay() runs */ - loops_per_jiffy = 50000000/HZ; - - /* Setup PCIXn host bridges */ - yucca_setup_hoses(); - -#ifdef CONFIG_BLK_DEV_INITRD - if (initrd_start) - ROOT_DEV = Root_RAM0; - else -#endif -#ifdef CONFIG_ROOT_NFS - ROOT_DEV = Root_NFS; -#else - ROOT_DEV = Root_HDA1; -#endif - - yucca_early_serial_map(); - - /* Identify the system */ - printk("Yucca port (Roland Dreier <rolandd@cisco.com>)\n"); -} - -void __init platform_init(unsigned long r3, unsigned long r4, - unsigned long r5, unsigned long r6, unsigned long r7) -{ - ibm44x_platform_init(r3, r4, r5, r6, r7); - - ppc_md.setup_arch = yucca_setup_arch; - ppc_md.show_cpuinfo = yucca_show_cpuinfo; - ppc_md.find_end_of_memory = ibm440sp_find_end_of_memory; - ppc_md.get_irq = NULL; /* Set in ppc4xx_pic_init() */ - - ppc_md.calibrate_decr = yucca_calibrate_decr; -#ifdef CONFIG_KGDB - ppc_md.early_serial_map = yucca_early_serial_map; -#endif -} |