diff options
Diffstat (limited to 'arch/ppc/platforms/4xx/ebony.c')
| -rw-r--r-- | arch/ppc/platforms/4xx/ebony.c | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/arch/ppc/platforms/4xx/ebony.c b/arch/ppc/platforms/4xx/ebony.c deleted file mode 100644 index 8027a36..0000000 --- a/arch/ppc/platforms/4xx/ebony.c +++ /dev/null @@ -1,334 +0,0 @@ -/* - * Ebony board specific routines - * - * Matt Porter <mporter@kernel.crashing.org> - * Copyright 2002-2005 MontaVista Software Inc. - * - * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> - * Copyright (c) 2003-2005 Zultys Technologies - * - * 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 <asm/tlbflush.h> - -#include <syslib/gen550.h> -#include <syslib/ibm440gp_common.h> - -extern bd_t __res; - -static struct ibm44x_clocks clocks __initdata; - -/* - * Ebony external IRQ triggering/polarity settings - */ -unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = { - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ0: PCI slot 0 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ1: PCI slot 1 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ2: PCI slot 2 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ3: PCI slot 3 */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ4: IRDA */ - (IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE), /* IRQ5: SMI pushbutton */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ6: PHYs */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ7: AUX */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ8: EXT */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ9: EXT */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ10: EXT */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ11: EXT */ - (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ12: EXT */ -}; - -static void __init -ebony_calibrate_decr(void) -{ - unsigned int freq; - - /* - * Determine system clock speed - * - * If we are on Rev. B silicon, then use - * default external system clock. If we are - * on Rev. C silicon then errata forces us to - * use the internal clock. - */ - if (strcmp(cur_cpu_spec->cpu_name, "440GP Rev. B") == 0) - freq = EBONY_440GP_RB_SYSCLK; - else - freq = EBONY_440GP_RC_SYSCLK; - - ibm44x_calibrate_decr(freq); -} - -static int -ebony_show_cpuinfo(struct seq_file *m) -{ - seq_printf(m, "vendor\t\t: IBM\n"); - seq_printf(m, "machine\t\t: Ebony\n"); - - return 0; -} - -static inline int -ebony_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - { 23, 23, 23, 23 }, /* IDSEL 1 - PCI Slot 0 */ - { 24, 24, 24, 24 }, /* IDSEL 2 - PCI Slot 1 */ - { 25, 25, 25, 25 }, /* IDSEL 3 - PCI Slot 2 */ - { 26, 26, 26, 26 }, /* IDSEL 4 - PCI Slot 3 */ - }; - - const long min_idsel = 1, max_idsel = 4, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; -} - -#define PCIX_WRITEL(value, offset) \ - (writel(value, pcix_reg_base + offset)) - -/* - * FIXME: This is only here to "make it work". This will move - * to a ibm_pcix.c which will contain a generic IBM PCIX bridge - * configuration library. -Matt - */ -static void __init -ebony_setup_pcix(void) -{ - void __iomem *pcix_reg_base; - - pcix_reg_base = ioremap64(PCIX0_REG_BASE, PCIX_REG_SIZE); - - /* Disable all windows */ - PCIX_WRITEL(0, PCIX0_POM0SA); - PCIX_WRITEL(0, PCIX0_POM1SA); - PCIX_WRITEL(0, PCIX0_POM2SA); - PCIX_WRITEL(0, PCIX0_PIM0SA); - PCIX_WRITEL(0, PCIX0_PIM1SA); - PCIX_WRITEL(0, PCIX0_PIM2SA); - - /* Setup 2GB PLB->PCI outbound mem window (3_8000_0000->0_8000_0000) */ - PCIX_WRITEL(0x00000003, PCIX0_POM0LAH); - PCIX_WRITEL(0x80000000, PCIX0_POM0LAL); - PCIX_WRITEL(0x00000000, PCIX0_POM0PCIAH); - PCIX_WRITEL(0x80000000, PCIX0_POM0PCIAL); - PCIX_WRITEL(0x80000001, PCIX0_POM0SA); - - /* Setup 2GB PCI->PLB inbound memory window at 0, enable MSIs */ - PCIX_WRITEL(0x00000000, PCIX0_PIM0LAH); - PCIX_WRITEL(0x00000000, PCIX0_PIM0LAL); - PCIX_WRITEL(0x80000007, PCIX0_PIM0SA); - - eieio(); -} - -static void __init -ebony_setup_hose(void) -{ - struct pci_controller *hose; - - /* Configure windows on the PCI-X host bridge */ - ebony_setup_pcix(); - - hose = pcibios_alloc_controller(); - - if (!hose) - return; - - hose->first_busno = 0; - hose->last_busno = 0xff; - - hose->pci_mem_offset = EBONY_PCI_MEM_OFFSET; - - pci_init_resource(&hose->io_resource, - EBONY_PCI_LOWER_IO, - EBONY_PCI_UPPER_IO, - IORESOURCE_IO, - "PCI host bridge"); - - pci_init_resource(&hose->mem_resources[0], - EBONY_PCI_LOWER_MEM, - EBONY_PCI_UPPER_MEM, - IORESOURCE_MEM, - "PCI host bridge"); - - hose->io_space.start = EBONY_PCI_LOWER_IO; - hose->io_space.end = EBONY_PCI_UPPER_IO; - hose->mem_space.start = EBONY_PCI_LOWER_MEM; - hose->mem_space.end = EBONY_PCI_UPPER_MEM; - hose->io_base_virt = ioremap64(EBONY_PCI_IO_BASE, EBONY_PCI_IO_SIZE); - isa_io_base = (unsigned long)hose->io_base_virt; - - setup_indirect_pci(hose, - EBONY_PCI_CFGA_PLB32, - EBONY_PCI_CFGD_PLB32); - hose->set_cfg_type = 1; - - hose->last_busno = pciauto_bus_scan(hose, hose->first_busno); - - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = ebony_map_irq; -} - -TODC_ALLOC(); - -static void __init -ebony_early_serial_map(void) -{ - struct uart_port port; - - /* Setup ioremapped serial port access */ - memset(&port, 0, sizeof(port)); - port.membase = ioremap64(PPC440GP_UART0_ADDR, 8); - port.irq = 0; - 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"); - } - -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - /* Configure debug serial access */ - gen550_init(0, &port); - - /* Purge TLB entry added in head_44x.S for early serial access */ - _tlbie(UART0_IO_BASE, 0); -#endif - - port.membase = ioremap64(PPC440GP_UART1_ADDR, 8); - port.irq = 1; - port.uartclk = clocks.uart1; - port.line = 1; - - if (early_serial_setup(&port) != 0) { - printk("Early serial init of port 1 failed\n"); - } - -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - /* Configure debug serial access */ - gen550_init(1, &port); -#endif -} - -static void __init -ebony_setup_arch(void) -{ - struct ocp_def *def; - struct ocp_func_emac_data *emacdata; - - /* Set mac_addr for each 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_RMII; - memcpy(emacdata->mac_addr, __res.bi_enetaddr, 6); - - def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 1); - emacdata = def->additions; - emacdata->phy_map = 0x00000001; /* Skip 0x00 */ - emacdata->phy_mode = PHY_MODE_RMII; - memcpy(emacdata->mac_addr, __res.bi_enet1addr, 6); - - /* - * Determine various clocks. - * To be completely correct we should get SysClk - * from FPGA, because it can be changed by on-board switches - * --ebs - */ - ibm440gp_get_clocks(&clocks, 33333333, 6 * 1843200); - ocp_sys_info.opb_bus_freq = clocks.opb; - - /* Setup TODC access */ - TODC_INIT(TODC_TYPE_DS1743, - 0, - 0, - ioremap64(EBONY_RTC_ADDR, EBONY_RTC_SIZE), - 8); - - /* init to some ~sane value until calibrate_delay() runs */ - loops_per_jiffy = 50000000/HZ; - - /* Setup PCI host bridge */ - ebony_setup_hose(); - -#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 - - ebony_early_serial_map(); - - /* Identify the system */ - printk("IBM Ebony port (MontaVista Software, Inc. (source@mvista.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 = ebony_setup_arch; - ppc_md.show_cpuinfo = ebony_show_cpuinfo; - ppc_md.get_irq = NULL; /* Set in ppc4xx_pic_init() */ - - ppc_md.calibrate_decr = ebony_calibrate_decr; - ppc_md.time_init = todc_time_init; - ppc_md.set_rtc_time = todc_set_rtc_time; - ppc_md.get_rtc_time = todc_get_rtc_time; - - ppc_md.nvram_read_val = todc_direct_read_val; - ppc_md.nvram_write_val = todc_direct_write_val; -#ifdef CONFIG_KGDB - ppc_md.early_serial_map = ebony_early_serial_map; -#endif -} - |
