diff options
Diffstat (limited to 'arch/mips/gt64120/momenco_ocelot')
| -rw-r--r-- | arch/mips/gt64120/momenco_ocelot/Makefile | 7 | ||||
| -rw-r--r-- | arch/mips/gt64120/momenco_ocelot/dbg_io.c | 121 | ||||
| -rw-r--r-- | arch/mips/gt64120/momenco_ocelot/irq.c | 95 | ||||
| -rw-r--r-- | arch/mips/gt64120/momenco_ocelot/ocelot-platform.c | 46 | ||||
| -rw-r--r-- | arch/mips/gt64120/momenco_ocelot/ocelot_pld.h | 30 | ||||
| -rw-r--r-- | arch/mips/gt64120/momenco_ocelot/prom.c | 71 | ||||
| -rw-r--r-- | arch/mips/gt64120/momenco_ocelot/reset.c | 47 | ||||
| -rw-r--r-- | arch/mips/gt64120/momenco_ocelot/setup.c | 365 |
8 files changed, 0 insertions, 782 deletions
diff --git a/arch/mips/gt64120/momenco_ocelot/Makefile b/arch/mips/gt64120/momenco_ocelot/Makefile deleted file mode 100644 index 1df5fe23c64..00000000000 --- a/arch/mips/gt64120/momenco_ocelot/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for Momentum's Ocelot board. -# - -obj-y += irq.o ocelot-platform.o prom.o reset.o setup.o - -obj-$(CONFIG_KGDB) += dbg_io.o diff --git a/arch/mips/gt64120/momenco_ocelot/dbg_io.c b/arch/mips/gt64120/momenco_ocelot/dbg_io.c deleted file mode 100644 index 32d6fb4ee67..00000000000 --- a/arch/mips/gt64120/momenco_ocelot/dbg_io.c +++ /dev/null @@ -1,121 +0,0 @@ - -#include <asm/serial.h> /* For the serial port location and base baud */ - -/* --- CONFIG --- */ - -typedef unsigned char uint8; -typedef unsigned int uint32; - -/* --- END OF CONFIG --- */ - -#define UART16550_BAUD_2400 2400 -#define UART16550_BAUD_4800 4800 -#define UART16550_BAUD_9600 9600 -#define UART16550_BAUD_19200 19200 -#define UART16550_BAUD_38400 38400 -#define UART16550_BAUD_57600 57600 -#define UART16550_BAUD_115200 115200 - -#define UART16550_PARITY_NONE 0 -#define UART16550_PARITY_ODD 0x08 -#define UART16550_PARITY_EVEN 0x18 -#define UART16550_PARITY_MARK 0x28 -#define UART16550_PARITY_SPACE 0x38 - -#define UART16550_DATA_5BIT 0x0 -#define UART16550_DATA_6BIT 0x1 -#define UART16550_DATA_7BIT 0x2 -#define UART16550_DATA_8BIT 0x3 - -#define UART16550_STOP_1BIT 0x0 -#define UART16550_STOP_2BIT 0x4 - -/* ----------------------------------------------------- */ - -/* === CONFIG === */ - -/* [jsun] we use the second serial port for kdb */ -#define BASE OCELOT_SERIAL1_BASE -#define MAX_BAUD OCELOT_BASE_BAUD - -/* === END OF CONFIG === */ - -#define REG_OFFSET 4 - -/* register offset */ -#define OFS_RCV_BUFFER 0 -#define OFS_TRANS_HOLD 0 -#define OFS_SEND_BUFFER 0 -#define OFS_INTR_ENABLE (1*REG_OFFSET) -#define OFS_INTR_ID (2*REG_OFFSET) -#define OFS_DATA_FORMAT (3*REG_OFFSET) -#define OFS_LINE_CONTROL (3*REG_OFFSET) -#define OFS_MODEM_CONTROL (4*REG_OFFSET) -#define OFS_RS232_OUTPUT (4*REG_OFFSET) -#define OFS_LINE_STATUS (5*REG_OFFSET) -#define OFS_MODEM_STATUS (6*REG_OFFSET) -#define OFS_RS232_INPUT (6*REG_OFFSET) -#define OFS_SCRATCH_PAD (7*REG_OFFSET) - -#define OFS_DIVISOR_LSB (0*REG_OFFSET) -#define OFS_DIVISOR_MSB (1*REG_OFFSET) - - -/* memory-mapped read/write of the port */ -#define UART16550_READ(y) (*((volatile uint8*)(BASE + y))) -#define UART16550_WRITE(y, z) ((*((volatile uint8*)(BASE + y))) = z) - -void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) -{ - /* disable interrupts */ - UART16550_WRITE(OFS_INTR_ENABLE, 0); - - /* set up baud rate */ - { - uint32 divisor; - - /* set DIAB bit */ - UART16550_WRITE(OFS_LINE_CONTROL, 0x80); - - /* set divisor */ - divisor = MAX_BAUD / baud; - UART16550_WRITE(OFS_DIVISOR_LSB, divisor & 0xff); - UART16550_WRITE(OFS_DIVISOR_MSB, (divisor & 0xff00) >> 8); - - /* clear DIAB bit */ - UART16550_WRITE(OFS_LINE_CONTROL, 0x0); - } - - /* set data format */ - UART16550_WRITE(OFS_DATA_FORMAT, data | parity | stop); -} - -static int remoteDebugInitialized = 0; - -uint8 getDebugChar(void) -{ - if (!remoteDebugInitialized) { - remoteDebugInitialized = 1; - debugInit(UART16550_BAUD_38400, - UART16550_DATA_8BIT, - UART16550_PARITY_NONE, UART16550_STOP_1BIT); - } - - while ((UART16550_READ(OFS_LINE_STATUS) & 0x1) == 0); - return UART16550_READ(OFS_RCV_BUFFER); -} - - -int putDebugChar(uint8 byte) -{ - if (!remoteDebugInitialized) { - remoteDebugInitialized = 1; - debugInit(UART16550_BAUD_38400, - UART16550_DATA_8BIT, - UART16550_PARITY_NONE, UART16550_STOP_1BIT); - } - - while ((UART16550_READ(OFS_LINE_STATUS) & 0x20) == 0); - UART16550_WRITE(OFS_SEND_BUFFER, byte); - return 1; -} diff --git a/arch/mips/gt64120/momenco_ocelot/irq.c b/arch/mips/gt64120/momenco_ocelot/irq.c deleted file mode 100644 index 2585d9dbda3..00000000000 --- a/arch/mips/gt64120/momenco_ocelot/irq.c +++ /dev/null @@ -1,95 +0,0 @@ -/* - * Copyright (C) 2000 RidgeRun, Inc. - * Author: RidgeRun, Inc. - * glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com - * - * Copyright 2001 MontaVista Software Inc. - * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net - * Copyright (C) 2000, 2001, 2003 Ralf Baechle (ralf@gnu.org) - * - * 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/errno.h> -#include <linux/init.h> -#include <linux/kernel_stat.h> -#include <linux/module.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/types.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/timex.h> -#include <linux/slab.h> -#include <linux/random.h> -#include <linux/bitops.h> -#include <asm/bootinfo.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/irq_cpu.h> -#include <asm/mipsregs.h> -#include <asm/system.h> - -asmlinkage void plat_irq_dispatch(void) -{ - unsigned int pending = read_c0_status() & read_c0_cause(); - - if (pending & STATUSF_IP2) /* int0 hardware line */ - do_IRQ(2); - else if (pending & STATUSF_IP3) /* int1 hardware line */ - do_IRQ(3); - else if (pending & STATUSF_IP4) /* int2 hardware line */ - do_IRQ(4); - else if (pending & STATUSF_IP5) /* int3 hardware line */ - do_IRQ(5); - else if (pending & STATUSF_IP6) /* int4 hardware line */ - do_IRQ(6); - else if (pending & STATUSF_IP7) /* cpu timer */ - do_IRQ(7); - else { - /* - * Now look at the extended interrupts - */ - pending = (read_c0_cause() & (read_c0_intcontrol() << 8)) >> 16; - - if (pending & STATUSF_IP8) /* int6 hardware line */ - do_IRQ(8); - else if (pending & STATUSF_IP9) /* int7 hardware line */ - do_IRQ(9); - else if (pending & STATUSF_IP10) /* int8 hardware line */ - do_IRQ(10); - else if (pending & STATUSF_IP11) /* int9 hardware line */ - do_IRQ(11); - } -} - -void __init arch_init_irq(void) -{ - /* - * Clear all of the interrupts while we change the able around a bit. - * int-handler is not on bootstrap - */ - clear_c0_status(ST0_IM); - local_irq_disable(); - - mips_cpu_irq_init(); - rm7k_cpu_irq_init(); -} diff --git a/arch/mips/gt64120/momenco_ocelot/ocelot-platform.c b/arch/mips/gt64120/momenco_ocelot/ocelot-platform.c deleted file mode 100644 index 81d9031a5a2..00000000000 --- a/arch/mips/gt64120/momenco_ocelot/ocelot-platform.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org) - * - * A NS16552 DUART with a 20MHz crystal. - * - */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/serial_8250.h> - -#define OCELOT_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP) - -static struct plat_serial8250_port uart8250_data[] = { - { - .mapbase = 0xe0001020, - .irq = 4, - .uartclk = 20000000, - .iotype = UPIO_MEM, - .flags = OCELOT_UART_FLAGS, - .regshift = 2, - }, - { }, -}; - -static struct platform_device uart8250_device = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = uart8250_data, - }, -}; - -static int __init uart8250_init(void) -{ - return platform_device_register(&uart8250_device); -} - -module_init(uart8250_init); - -MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("8250 UART probe driver for the Momenco Ocelot"); diff --git a/arch/mips/gt64120/momenco_ocelot/ocelot_pld.h b/arch/mips/gt64120/momenco_ocelot/ocelot_pld.h deleted file mode 100644 index 11f02c402b2..00000000000 --- a/arch/mips/gt64120/momenco_ocelot/ocelot_pld.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * Ocelot Board Register Definitions - * - * (C) 2001 Red Hat, Inc. - * - * GPL'd - */ -#ifndef __MOMENCO_OCELOT_PLD_H__ -#define __MOMENCO_OCELOT_PLD_H__ - -#define OCELOT_CS0_ADDR (0xe0020000) - -#define OCELOT_REG_BOARDREV (0) -#define OCELOT_REG_PLD1_ID (1) -#define OCELOT_REG_PLD2_ID (2) -#define OCELOT_REG_RESET_STATUS (3) -#define OCELOT_REG_BOARD_STATUS (4) -#define OCELOT_REG_CPCI_ID (5) -#define OCELOT_REG_I2C_CTRL (8) -#define OCELOT_REG_EEPROM_MODE (9) -#define OCELOT_REG_INTMASK (10) -#define OCELOT_REG_INTSTATUS (11) -#define OCELOT_REG_INTSET (12) -#define OCELOT_REG_INTCLR (13) - -#define OCELOT_PLD_WRITE(x, y) writeb(x, OCELOT_CS0_ADDR + OCELOT_REG_##y) -#define OCELOT_PLD_READ(x) readb(OCELOT_CS0_ADDR + OCELOT_REG_##x) - - -#endif /* __MOMENCO_OCELOT_PLD_H__ */ diff --git a/arch/mips/gt64120/momenco_ocelot/prom.c b/arch/mips/gt64120/momenco_ocelot/prom.c deleted file mode 100644 index c71c85276c7..00000000000 --- a/arch/mips/gt64120/momenco_ocelot/prom.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright 2001 MontaVista Software Inc. - * Author: jsun@mvista.com or jsun@junsun.net - * - * 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/init.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/bootmem.h> - -#include <asm/addrspace.h> -#include <asm/bootinfo.h> -#include <asm/pmon.h> - -struct callvectors* debug_vectors; - -extern unsigned long gt64120_base; - -const char *get_system_type(void) -{ - return "Momentum Ocelot"; -} - -/* [jsun@junsun.net] PMON passes arguments in C main() style */ -void __init prom_init(void) -{ - int argc = fw_arg0; - char **arg = (char **) fw_arg1; - char **env = (char **) fw_arg2; - struct callvectors *cv = (struct callvectors *) fw_arg3; - int i; - - /* save the PROM vectors for debugging use */ - debug_vectors = cv; - - /* arg[0] is "g", the rest is boot parameters */ - arcs_cmdline[0] = '\0'; - for (i = 1; i < argc; i++) { - if (strlen(arcs_cmdline) + strlen(arg[i] + 1) - >= sizeof(arcs_cmdline)) - break; - strcat(arcs_cmdline, arg[i]); - strcat(arcs_cmdline, " "); - } - - mips_machgroup = MACH_GROUP_MOMENCO; - mips_machtype = MACH_MOMENCO_OCELOT; - - while (*env) { - if (strncmp("gtbase", *env, 6) == 0) { - gt64120_base = simple_strtol(*env + strlen("gtbase="), - NULL, 16); - break; - } - *env++; - } - - debug_vectors->printf("Booting Linux kernel...\n"); - - /* All the boards have at least 64MiB. If there's more, we - detect and register it later */ - add_memory_region(0, 64 << 20, BOOT_MEM_RAM); -} - -void __init prom_free_prom_memory(void) -{ -} diff --git a/arch/mips/gt64120/momenco_ocelot/reset.c b/arch/mips/gt64120/momenco_ocelot/reset.c deleted file mode 100644 index 3fd499adf4c..00000000000 --- a/arch/mips/gt64120/momenco_ocelot/reset.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * 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. - * - * Copyright (C) 1997, 2001 Ralf Baechle - * Copyright 2001 MontaVista Software Inc. - * Author: jsun@mvista.com or jsun@junsun.net - */ -#include <linux/sched.h> -#include <linux/mm.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/reboot.h> -#include <asm/system.h> -#include <linux/delay.h> - -void momenco_ocelot_restart(char *command) -{ - void *nvram = ioremap_nocache(0x2c807000, 0x1000); - - if (!nvram) { - printk(KERN_NOTICE "ioremap of reset register failed\n"); - return; - } - writeb(0x84, nvram + 0xff7); /* Ask the NVRAM/RTC/watchdog chip to - assert reset in 1/16 second */ - mdelay(10+(1000/16)); - iounmap(nvram); - printk(KERN_NOTICE "Watchdog reset failed\n"); -} - -void momenco_ocelot_halt(void) -{ - printk(KERN_NOTICE "\n** You can safely turn off the power\n"); - while (1) - __asm__(".set\tmips3\n\t" - "wait\n\t" - ".set\tmips0"); -} - -void momenco_ocelot_power_off(void) -{ - momenco_ocelot_halt(); -} diff --git a/arch/mips/gt64120/momenco_ocelot/setup.c b/arch/mips/gt64120/momenco_ocelot/setup.c deleted file mode 100644 index 98b6fb38096..00000000000 --- a/arch/mips/gt64120/momenco_ocelot/setup.c +++ /dev/null @@ -1,365 +0,0 @@ -/* - * setup.c - * - * BRIEF MODULE DESCRIPTION - * Momentum Computer Ocelot (CP7000) - board dependent boot routines - * - * Copyright (C) 1996, 1997, 2001, 06 Ralf Baechle (ralf@linux-mips.org) - * Copyright (C) 2000 RidgeRun, Inc. - * Copyright (C) 2001 Red Hat, Inc. - * Copyright (C) 2002 Momentum Computer - * - * 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 - * - * 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/mm.h> -#include <linux/swap.h> -#include <linux/ioport.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/timex.h> -#include <linux/vmalloc.h> -#include <linux/pm.h> - -#include <asm/time.h> -#include <asm/bootinfo.h> -#include <asm/page.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/pci.h> -#include <asm/processor.h> -#include <asm/reboot.h> -#include <asm/traps.h> -#include <linux/bootmem.h> -#include <linux/initrd.h> -#include <asm/gt64120.h> -#include "ocelot_pld.h" - -unsigned long gt64120_base = KSEG1ADDR(GT_DEF_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); - -extern void momenco_ocelot_irq_setup(void); - -static char reset_reason; - -#define ENTRYLO(x) ((pte_val(pfn_pte((x) >> PAGE_SHIFT, PAGE_KERNEL_UNCACHED)) >> 6)|1) - -static void __init setup_l3cache(unsigned long size); - -/* setup code for a handoff from a version 1 PMON 2000 PROM */ -static void PMON_v1_setup(void) -{ - /* A wired TLB entry for the GT64120A and the serial port. The - GT64120A is going to be hit on every IRQ anyway - there's - absolutely no point in letting it be a random TLB entry, as - it'll just cause needless churning of the TLB. And we use - the other half for the serial port, which is just a PITA - otherwise :) - - Device Physical Virtual - GT64120 Internal Regs 0x24000000 0xe0000000 - UARTs (CS2) 0x2d000000 0xe0001000 - */ - add_wired_entry(ENTRYLO(0x24000000), ENTRYLO(0x2D000000), 0xe0000000, PM_4K); - - /* Also a temporary entry to let us talk to the Ocelot PLD and NVRAM - in the CS[012] region. We can't use ioremap() yet. The NVRAM - is a ST M48T37Y, which includes NVRAM, RTC, and Watchdog functions. - - Ocelot PLD (CS0) 0x2c000000 0xe0020000 - NVRAM 0x2c800000 0xe0030000 - */ - - add_temporary_entry(ENTRYLO(0x2C000000), ENTRYLO(0x2d000000), 0xe0020000, PM_64K); - - /* Relocate the CS3/BootCS region */ - GT_WRITE(GT_CS3BOOTLD_OFS, 0x2f000000 >> 21); - - /* Relocate CS[012] */ - GT_WRITE(GT_CS20LD_OFS, 0x2c000000 >> 21); - - /* Relocate the GT64120A itself... */ - GT_WRITE(GT_ISD_OFS, 0x24000000 >> 21); - mb(); - gt64120_base = 0xe0000000; - - /* ...and the PCI0 view of it. */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, 0x80000020); - GT_WRITE(GT_PCI0_CFGDATA_OFS, 0x24000000); - GT_WRITE(GT_PCI0_CFGADDR_OFS, 0x80000024); - GT_WRITE(GT_PCI0_CFGDATA_OFS, 0x24000001); -} - -/* setup code for a handoff from a version 2 PMON 2000 PROM */ -void PMON_v2_setup() -{ - /* A wired TLB entry for the GT64120A and the serial port. The - GT64120A is going to be hit on every IRQ anyway - there's - absolutely no point in letting it be a random TLB entry, as - it'll just cause needless churning of the TLB. And we use - the other half for the serial port, which is just a PITA - otherwise :) - - Device Physical Virtual - GT64120 Internal Regs 0xf4000000 0xe0000000 - UARTs (CS2) 0xfd000000 0xe0001000 - */ - add_wired_entry(ENTRYLO(0xf4000000), ENTRYLO(0xfD000000), 0xe0000000, PM_4K); - - /* Also a temporary entry to let us talk to the Ocelot PLD and NVRAM - in the CS[012] region. We can't use ioremap() yet. The NVRAM - is a ST M48T37Y, which includes NVRAM, RTC, and Watchdog functions. - - Ocelot PLD (CS0) 0xfc000000 0xe0020000 - NVRAM 0xfc800000 0xe0030000 - */ - add_temporary_entry(ENTRYLO(0xfC000000), ENTRYLO(0xfd000000), 0xe0020000, PM_64K); - - gt64120_base = 0xe0000000; -} - -void __init plat_mem_setup(void) -{ - void (*l3func)(unsigned long)=KSEG1ADDR(&setup_l3cache); - unsigned int tmpword; - - _machine_restart = momenco_ocelot_restart; - _machine_halt = momenco_ocelot_halt; - pm_power_off = momenco_ocelot_power_off; - - /* - * initrd_start = (unsigned long)ocelot_initrd_start; - * initrd_end = (unsigned long)ocelot_initrd_start + (ulong)ocelot_initrd_size; - * initrd_below_start_ok = 1; - */ - - /* do handoff reconfiguration */ - if (gt64120_base == KSEG1ADDR(GT_DEF_BASE)) - PMON_v1_setup(); - else - PMON_v2_setup(); - - /* Turn off the Bit-Error LED */ - OCELOT_PLD_WRITE(0x80, INTCLR); - - /* Relocate all the PCI1 stuff, not that we use it */ - GT_WRITE(GT_PCI1IOLD_OFS, 0x30000000 >> 21); - GT_WRITE(GT_PCI1M0LD_OFS, 0x32000000 >> 21); - GT_WRITE(GT_PCI1M1LD_OFS, 0x34000000 >> 21); - - /* Relocate PCI0 I/O and Mem0 */ - GT_WRITE(GT_PCI0IOLD_OFS, 0x20000000 >> 21); - GT_WRITE(GT_PCI0M0LD_OFS, 0x22000000 >> 21); - - /* Relocate PCI0 Mem1 */ - GT_WRITE(GT_PCI0M1LD_OFS, 0x36000000 >> 21); - - /* For the initial programming, we assume 512MB configuration */ - /* Relocate the CPU's view of the RAM... */ - GT_WRITE(GT_SCS10LD_OFS, 0); - GT_WRITE(GT_SCS10HD_OFS, 0x0fe00000 >> 21); - GT_WRITE(GT_SCS32LD_OFS, 0x10000000 >> 21); - GT_WRITE(GT_SCS32HD_OFS, 0x0fe00000 >> 21); - - GT_WRITE(GT_SCS1LD_OFS, 0xff); - GT_WRITE(GT_SCS1HD_OFS, 0x00); - GT_WRITE(GT_SCS0LD_OFS, 0); - GT_WRITE(GT_SCS0HD_OFS, 0xff); - GT_WRITE(GT_SCS3LD_OFS, 0xff); - GT_WRITE(GT_SCS3HD_OFS, 0x00); - GT_WRITE(GT_SCS2LD_OFS, 0); - GT_WRITE(GT_SCS2HD_OFS, 0xff); - - /* ...and the PCI0 view of it. */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, 0x80000010); - GT_WRITE(GT_PCI0_CFGDATA_OFS, 0x00000000); - GT_WRITE(GT_PCI0_CFGADDR_OFS, 0x80000014); - GT_WRITE(GT_PCI0_CFGDATA_OFS, 0x10000000); - GT_WRITE(GT_PCI0_BS_SCS10_OFS, 0x0ffff000); - GT_WRITE(GT_PCI0_BS_SCS32_OFS, 0x0ffff000); - - tmpword = OCELOT_PLD_READ(BOARDREV); - if (tmpword < 26) - printk("Momenco Ocelot: Board Assembly Rev. %c\n", 'A'+tmpword); - else - printk("Momenco Ocelot: Board Assembly Revision #0x%x\n", tmpword); - - tmpword = OCELOT_PLD_READ(PLD1_ID); - printk("PLD 1 ID: %d.%d\n", tmpword>>4, tmpword&15); - tmpword = OCELOT_PLD_READ(PLD2_ID); - printk("PLD 2 ID: %d.%d\n", tmpword>>4, tmpword&15); - tmpword = OCELOT_PLD_READ(RESET_STATUS); - printk("Reset reason: 0x%x\n", tmpword); - reset_reason = tmpword; - OCELOT_PLD_WRITE(0xff, RESET_STATUS); - - tmpword = OCELOT_PLD_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(" - Tulip PHY %s connected\n", (tmpword&0x10)?"is":"not"); - printk(" - L3 Cache size: %d MiB\n", (1<<((tmpword&12) >> 2))&~1); - printk(" - SDRAM size: %d MiB\n", 1<<(6+(tmpword&3))); - - if (tmpword&12) - l3func((1<<(((tmpword&12) >> 2)+20))); - - switch(tmpword &3) { - case 3: - /* 512MiB */ - /* Decoders are allready set -- just add the - * appropriate region */ - add_memory_region( 0x40<<20, 0xC0<<20, BOOT_MEM_RAM); - add_memory_region(0x100<<20, 0x100<<20, BOOT_MEM_RAM); - break; - case 2: - /* 256MiB -- two banks of 128MiB */ - GT_WRITE(GT_SCS10HD_OFS, 0x07e00000 >> 21); - GT_WRITE(GT_SCS32LD_OFS, 0x08000000 >> 21); - GT_WRITE(GT_SCS32HD_OFS, 0x0fe00000 >> 21); - - GT_WRITE(GT_SCS0HD_OFS, 0x7f); - GT_WRITE(GT_SCS2LD_OFS, 0x80); - GT_WRITE(GT_SCS2HD_OFS, 0xff); - - /* reconfigure the PCI0 interface view of memory */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, 0x80000014); - GT_WRITE(GT_PCI0_CFGDATA_OFS, 0x08000000); - GT_WRITE(GT_PCI0_BS_SCS10_OFS, 0x0ffff000); - GT_WRITE(GT_PCI0_BS_SCS32_OFS, 0x0ffff000); - - add_memory_region(0x40<<20, 0x40<<20, BOOT_MEM_RAM); - add_memory_region(0x80<<20, 0x80<<20, BOOT_MEM_RAM); - break; - case 1: - /* 128MiB -- 64MiB per bank */ - GT_WRITE(GT_SCS10HD_OFS, 0x03e00000 >> 21); - GT_WRITE(GT_SCS32LD_OFS, 0x04000000 >> 21); - GT_WRITE(GT_SCS32HD_OFS, 0x07e00000 >> 21); - - GT_WRITE(GT_SCS0HD_OFS, 0x3f); - GT_WRITE(GT_SCS2LD_OFS, 0x40); - GT_WRITE(GT_SCS2HD_OFS, 0x7f); - - /* reconfigure the PCI0 interface view of memory */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, 0x80000014); - GT_WRITE(GT_PCI0_CFGDATA_OFS, 0x04000000); - GT_WRITE(GT_PCI0_BS_SCS10_OFS, 0x03fff000); - GT_WRITE(GT_PCI0_BS_SCS32_OFS, 0x03fff000); - - /* add the appropriate region */ - add_memory_region(0x40<<20, 0x40<<20, BOOT_MEM_RAM); - break; - case 0: - /* 64MiB */ - GT_WRITE(GT_SCS10HD_OFS, 0x01e00000 >> 21); - GT_WRITE(GT_SCS32LD_OFS, 0x02000000 >> 21); - GT_WRITE(GT_SCS32HD_OFS, 0x03e00000 >> 21); - - GT_WRITE(GT_SCS0HD_OFS, 0x1f); - GT_WRITE(GT_SCS2LD_OFS, 0x20); - GT_WRITE(GT_SCS2HD_OFS, 0x3f); - - /* reconfigure the PCI0 interface view of memory */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, 0x80000014); - GT_WRITE(GT_PCI0_CFGDATA_OFS, 0x04000000); - GT_WRITE(GT_PCI0_BS_SCS10_OFS, 0x01fff000); - GT_WRITE(GT_PCI0_BS_SCS32_OFS, 0x01fff000); - - break; - } - - /* Fix up the DiskOnChip mapping */ - GT_WRITE(GT_DEV_B3_OFS, 0xfef73); -} - -extern int rm7k_tcache_enabled; -/* - * This runs in KSEG1. See the verbiage in rm7k.c::probe_scache() - */ -#define Page_Invalidate_T 0x16 -static void __init setup_l3cache(unsigned long size) -{ - int register i; - unsigned long tmp; - - printk("Enabling L3 cache..."); - - /* Enable the L3 cache in the GT64120A's CPU Configuration register */ - tmp = GT_READ(GT_CPU_OFS); - GT_WRITE(GT_CPU_OFS, tmp | (1<<14)); - - /* Enable the L3 cache in the CPU */ - set_c0_config(1<<12 /* CONF_TE */); - - /* Clear the cache */ - write_c0_taglo(0); - write_c0_taghi(0); - - for (i=0; i < size; i+= 4096) { - __asm__ __volatile__ ( - ".set noreorder\n\t" - ".set mips3\n\t" - "cache %1, (%0)\n\t" - ".set mips0\n\t" - ".set reorder" - : - : "r" (KSEG0ADDR(i)), - "i" (Page_Invalidate_T)); - } - - /* Let the RM7000 MM code know that the tertiary cache is enabled */ - rm7k_tcache_enabled = 1; - - printk("Done\n"); -} - - -/* This needs to be one of the first initcalls, because no I/O port access - can work before this */ - -static int io_base_ioremap(void) -{ - void *io_remap_range = ioremap(GT_PCI_IO_BASE, GT_PCI_IO_SIZE); - - if (!io_remap_range) { - panic("Could not ioremap I/O port range"); - } - set_io_port_base(io_remap_range - GT_PCI_IO_BASE); - - return 0; -} - -module_init(io_base_ioremap); |