diff options
Diffstat (limited to 'arch/mips/momentum/ocelot_3/setup.c')
| -rw-r--r-- | arch/mips/momentum/ocelot_3/setup.c | 398 |
1 files changed, 0 insertions, 398 deletions
diff --git a/arch/mips/momentum/ocelot_3/setup.c b/arch/mips/momentum/ocelot_3/setup.c deleted file mode 100644 index ff0829f..0000000 --- a/arch/mips/momentum/ocelot_3/setup.c +++ /dev/null @@ -1,398 +0,0 @@ -/* - * setup.c - * - * BRIEF MODULE DESCRIPTION - * Momentum Computer Ocelot-3 board dependent boot routines - * - * Copyright (C) 1996, 1997, 01, 05 - 06 Ralf Baechle - * Copyright (C) 2000 RidgeRun, Inc. - * Copyright (C) 2001 Red Hat, Inc. - * Copyright (C) 2002 Momentum Computer - * - * Author: Matthew Dharm, Momentum Computer - * mdharm@momenco.com - * - * Louis Hamilton, Red Hat, Inc. - * hamilton@redhat.com [MIPS64 modifications] - * - * Author: RidgeRun, Inc. - * glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com - * - * Copyright 2001 MontaVista Software Inc. - * Author: jsun@mvista.com or jsun@junsun.net - * - * Copyright 2004 PMC-Sierra - * Author: Manish Lachwani (lachwani@pmc-sierra.com) - * - * Copyright (C) 2004 MontaVista Software Inc. - * Author: Manish Lachwani, mlachwani@mvista.com - * - * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/mc146818rtc.h> -#include <linux/ioport.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/timex.h> -#include <linux/bootmem.h> -#include <linux/mv643xx.h> -#include <linux/pm.h> -#include <linux/bcd.h> - -#include <asm/time.h> -#include <asm/page.h> -#include <asm/bootinfo.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/pci.h> -#include <asm/processor.h> -#include <asm/reboot.h> -#include <asm/mc146818rtc.h> -#include <asm/tlbflush.h> -#include "ocelot_3_fpga.h" - -/* Marvell Discovery Register Base */ -unsigned long marvell_base = (signed)0xf4000000; - -/* CPU clock */ -unsigned long cpu_clock; - -/* RTC/NVRAM */ -unsigned char* rtc_base = (unsigned char*)(signed)0xfc800000; - -/* FPGA Base */ -unsigned long ocelot_fpga_base = (signed)0xfc000000; - -/* Serial base */ -unsigned long uart_base = (signed)0xfd000000; - -/* - * Marvell Discovery SRAM. This is one place where Ethernet - * Tx and Rx descriptors can be placed to improve performance - */ -extern unsigned long mv64340_sram_base; - -/* These functions are used for rebooting or halting the machine*/ -extern void momenco_ocelot_restart(char *command); -extern void momenco_ocelot_halt(void); -extern void momenco_ocelot_power_off(void); - -void momenco_time_init(void); -static char reset_reason; - -void add_wired_entry(unsigned long entrylo0, unsigned long entrylo1, - unsigned long entryhi, unsigned long pagemask); - -static inline unsigned long ENTRYLO(unsigned long paddr) -{ - return ((paddr & PAGE_MASK) | - (_PAGE_PRESENT | __READABLE | __WRITEABLE | _PAGE_GLOBAL | - _CACHE_UNCACHED)) >> 6; -} - -void __init bus_error_init(void) -{ - /* nothing */ -} - -/* - * setup code for a handoff from a version 2 PMON 2000 PROM - */ -void setup_wired_tlb_entries(void) -{ - write_c0_wired(0); - local_flush_tlb_all(); - - /* marvell and extra space */ - add_wired_entry(ENTRYLO(0xf4000000), ENTRYLO(0xf4010000), (signed)0xf4000000, PM_64K); - - /* fpga, rtc, and uart */ - add_wired_entry(ENTRYLO(0xfc000000), ENTRYLO(0xfd000000), (signed)0xfc000000, PM_16M); -} - -unsigned long m48t37y_get_time(void) -{ - unsigned int year, month, day, hour, min, sec; - unsigned long flags; - - spin_lock_irqsave(&rtc_lock, flags); - /* stop the update */ - rtc_base[0x7ff8] = 0x40; - - year = BCD2BIN(rtc_base[0x7fff]); - year += BCD2BIN(rtc_base[0x7ff1]) * 100; - - month = BCD2BIN(rtc_base[0x7ffe]); - - day = BCD2BIN(rtc_base[0x7ffd]); - - hour = BCD2BIN(rtc_base[0x7ffb]); - min = BCD2BIN(rtc_base[0x7ffa]); - sec = BCD2BIN(rtc_base[0x7ff9]); - - /* start the update */ - rtc_base[0x7ff8] = 0x00; - spin_unlock_irqrestore(&rtc_lock, flags); - - return mktime(year, month, day, hour, min, sec); -} - -int m48t37y_set_time(unsigned long sec) -{ - struct rtc_time tm; - unsigned long flags; - - /* convert to a more useful format -- note months count from 0 */ - to_tm(sec, &tm); - tm.tm_mon += 1; - - spin_lock_irqsave(&rtc_lock, flags); - /* enable writing */ - rtc_base[0x7ff8] = 0x80; - - /* year */ - rtc_base[0x7fff] = BIN2BCD(tm.tm_year % 100); - rtc_base[0x7ff1] = BIN2BCD(tm.tm_year / 100); - - /* month */ - rtc_base[0x7ffe] = BIN2BCD(tm.tm_mon); - - /* day */ - rtc_base[0x7ffd] = BIN2BCD(tm.tm_mday); - - /* hour/min/sec */ - rtc_base[0x7ffb] = BIN2BCD(tm.tm_hour); - rtc_base[0x7ffa] = BIN2BCD(tm.tm_min); - rtc_base[0x7ff9] = BIN2BCD(tm.tm_sec); - - /* day of week -- not really used, but let's keep it up-to-date */ - rtc_base[0x7ffc] = BIN2BCD(tm.tm_wday + 1); - - /* disable writing */ - rtc_base[0x7ff8] = 0x00; - spin_unlock_irqrestore(&rtc_lock, flags); - - return 0; -} - -void __init plat_timer_setup(struct irqaction *irq) -{ - setup_irq(7, irq); /* Timer interrupt, unmask status IM7 */ -} - -void momenco_time_init(void) -{ - setup_wired_tlb_entries(); - - /* - * Ocelot-3 board has been built with both - * the Rm7900 and the Rm7065C - */ - mips_hpt_frequency = cpu_clock / 2; - - rtc_mips_get_time = m48t37y_get_time; - rtc_mips_set_time = m48t37y_set_time; -} - -/* - * PCI Support for Ocelot-3 - */ - -/* Bus #0 IO and MEM space */ -#define OCELOT_3_PCI_IO_0_START 0xe0000000 -#define OCELOT_3_PCI_IO_0_SIZE 0x08000000 -#define OCELOT_3_PCI_MEM_0_START 0xc0000000 -#define OCELOT_3_PCI_MEM_0_SIZE 0x10000000 - -/* Bus #1 IO and MEM space */ -#define OCELOT_3_PCI_IO_1_START 0xe8000000 -#define OCELOT_3_PCI_IO_1_SIZE 0x08000000 -#define OCELOT_3_PCI_MEM_1_START 0xd0000000 -#define OCELOT_3_PCI_MEM_1_SIZE 0x10000000 - -static struct resource mv_pci_io_mem0_resource = { - .name = "MV64340 PCI0 IO MEM", - .start = OCELOT_3_PCI_IO_0_START, - .end = OCELOT_3_PCI_IO_0_START + OCELOT_3_PCI_IO_0_SIZE - 1, - .flags = IORESOURCE_IO, -}; - -static struct resource mv_pci_io_mem1_resource = { - .name = "MV64340 PCI1 IO MEM", - .start = OCELOT_3_PCI_IO_1_START, - .end = OCELOT_3_PCI_IO_1_START + OCELOT_3_PCI_IO_1_SIZE - 1, - .flags = IORESOURCE_IO, -}; - -static struct resource mv_pci_mem0_resource = { - .name = "MV64340 PCI0 MEM", - .start = OCELOT_3_PCI_MEM_0_START, - .end = OCELOT_3_PCI_MEM_0_START + OCELOT_3_PCI_MEM_0_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -static struct resource mv_pci_mem1_resource = { - .name = "MV64340 PCI1 MEM", - .start = OCELOT_3_PCI_MEM_1_START, - .end = OCELOT_3_PCI_MEM_1_START + OCELOT_3_PCI_MEM_1_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -static struct mv_pci_controller mv_bus0_controller = { - .pcic = { - .pci_ops = &mv_pci_ops, - .mem_resource = &mv_pci_mem0_resource, - .io_resource = &mv_pci_io_mem0_resource, - }, - .config_addr = MV64340_PCI_0_CONFIG_ADDR, - .config_vreg = MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG, -}; - -static struct mv_pci_controller mv_bus1_controller = { - .pcic = { - .pci_ops = &mv_pci_ops, - .mem_resource = &mv_pci_mem1_resource, - .io_resource = &mv_pci_io_mem1_resource, - }, - .config_addr = MV64340_PCI_1_CONFIG_ADDR, - .config_vreg = MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG, -}; - -static __init int __init ja_pci_init(void) -{ - uint32_t enable; - extern int pci_probe_only; - - /* PMON will assign PCI resources */ - pci_probe_only = 1; - - enable = ~MV_READ(MV64340_BASE_ADDR_ENABLE); - /* - * We require at least one enabled I/O or PCI memory window or we - * will ignore this PCI bus. We ignore PCI windows 1, 2 and 3. - */ - if (enable & (0x01 << 9) || enable & (0x01 << 10)) - register_pci_controller(&mv_bus0_controller.pcic); - - if (enable & (0x01 << 14) || enable & (0x01 << 15)) - register_pci_controller(&mv_bus1_controller.pcic); - - ioport_resource.end = OCELOT_3_PCI_IO_0_START + OCELOT_3_PCI_IO_0_SIZE + - OCELOT_3_PCI_IO_1_SIZE - 1; - - iomem_resource.end = OCELOT_3_PCI_MEM_0_START + OCELOT_3_PCI_MEM_0_SIZE + - OCELOT_3_PCI_MEM_1_SIZE - 1; - - set_io_port_base(OCELOT_3_PCI_IO_0_START); /* mips_io_port_base */ - - return 0; -} - -arch_initcall(ja_pci_init); - -void __init plat_mem_setup(void) -{ - unsigned int tmpword; - - board_time_init = momenco_time_init; - - _machine_restart = momenco_ocelot_restart; - _machine_halt = momenco_ocelot_halt; - pm_power_off = momenco_ocelot_power_off; - - /* Wired TLB entries */ - setup_wired_tlb_entries(); - - /* shut down ethernet ports, just to be sure our memory doesn't get - * corrupted by random ethernet traffic. - */ - MV_WRITE(MV643XX_ETH_TRANSMIT_QUEUE_COMMAND_REG(0), 0xff << 8); - MV_WRITE(MV643XX_ETH_TRANSMIT_QUEUE_COMMAND_REG(1), 0xff << 8); - MV_WRITE(MV643XX_ETH_RECEIVE_QUEUE_COMMAND_REG(0), 0xff << 8); - MV_WRITE(MV643XX_ETH_RECEIVE_QUEUE_COMMAND_REG(1), 0xff << 8); - do {} - while (MV_READ(MV643XX_ETH_RECEIVE_QUEUE_COMMAND_REG(0)) & 0xff); - do {} - while (MV_READ(MV643XX_ETH_RECEIVE_QUEUE_COMMAND_REG(1)) & 0xff); - do {} - while (MV_READ(MV643XX_ETH_TRANSMIT_QUEUE_COMMAND_REG(0)) & 0xff); - do {} - while (MV_READ(MV643XX_ETH_TRANSMIT_QUEUE_COMMAND_REG(1)) & 0xff); - MV_WRITE(MV643XX_ETH_PORT_SERIAL_CONTROL_REG(0), - MV_READ(MV643XX_ETH_PORT_SERIAL_CONTROL_REG(0)) & ~1); - MV_WRITE(MV643XX_ETH_PORT_SERIAL_CONTROL_REG(1), - MV_READ(MV643XX_ETH_PORT_SERIAL_CONTROL_REG(1)) & ~1); - - /* Turn off the Bit-Error LED */ - OCELOT_FPGA_WRITE(0x80, CLR); - - tmpword = OCELOT_FPGA_READ(BOARDREV); - if (tmpword < 26) - printk("Momenco Ocelot-3: Board Assembly Rev. %c\n", - 'A'+tmpword); - else - printk("Momenco Ocelot-3: Board Assembly Revision #0x%x\n", - tmpword); - - tmpword = OCELOT_FPGA_READ(FPGA_REV); - printk("FPGA Rev: %d.%d\n", tmpword>>4, tmpword&15); - tmpword = OCELOT_FPGA_READ(RESET_STATUS); - printk("Reset reason: 0x%x\n", tmpword); - switch (tmpword) { - case 0x1: - printk(" - Power-up reset\n"); - break; - case 0x2: - printk(" - Push-button reset\n"); - break; - case 0x4: - printk(" - cPCI bus reset\n"); - break; - case 0x8: - printk(" - Watchdog reset\n"); - break; - case 0x10: - printk(" - Software reset\n"); - break; - default: - printk(" - Unknown reset cause\n"); - } - reset_reason = tmpword; - OCELOT_FPGA_WRITE(0xff, RESET_STATUS); - - tmpword = OCELOT_FPGA_READ(CPCI_ID); - printk("cPCI ID register: 0x%02x\n", tmpword); - printk(" - Slot number: %d\n", tmpword & 0x1f); - printk(" - PCI bus present: %s\n", tmpword & 0x40 ? "yes" : "no"); - printk(" - System Slot: %s\n", tmpword & 0x20 ? "yes" : "no"); - - tmpword = OCELOT_FPGA_READ(BOARD_STATUS); - printk("Board Status register: 0x%02x\n", tmpword); - printk(" - User jumper: %s\n", (tmpword & 0x80)?"installed":"absent"); - printk(" - Boot flash write jumper: %s\n", (tmpword&0x40)?"installed":"absent"); - printk(" - L3 cache size: %d MB\n", (1<<((tmpword&12) >> 2))&~1); - - /* Support for 128 MB memory */ - add_memory_region(0x0, 0x08000000, BOOT_MEM_RAM); -} |
