diff options
Diffstat (limited to 'arch/mips/momentum/ocelot_g')
| -rw-r--r-- | arch/mips/momentum/ocelot_g/Makefile | 6 | ||||
| -rw-r--r-- | arch/mips/momentum/ocelot_g/dbg_io.c | 121 | ||||
| -rw-r--r-- | arch/mips/momentum/ocelot_g/gt-irq.c | 212 | ||||
| -rw-r--r-- | arch/mips/momentum/ocelot_g/irq.c | 101 | ||||
| -rw-r--r-- | arch/mips/momentum/ocelot_g/ocelot_pld.h | 30 | ||||
| -rw-r--r-- | arch/mips/momentum/ocelot_g/prom.c | 84 | ||||
| -rw-r--r-- | arch/mips/momentum/ocelot_g/reset.c | 47 | ||||
| -rw-r--r-- | arch/mips/momentum/ocelot_g/setup.c | 267 |
8 files changed, 0 insertions, 868 deletions
diff --git a/arch/mips/momentum/ocelot_g/Makefile b/arch/mips/momentum/ocelot_g/Makefile deleted file mode 100644 index c0a0030d949d..000000000000 --- a/arch/mips/momentum/ocelot_g/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# -# Makefile for Momentum Computer's Ocelot-G board. -# - -obj-y += irq.o gt-irq.o prom.o reset.o setup.o -obj-$(CONFIG_KGDB) += dbg_io.o diff --git a/arch/mips/momentum/ocelot_g/dbg_io.c b/arch/mips/momentum/ocelot_g/dbg_io.c deleted file mode 100644 index 32d6fb4ee679..000000000000 --- a/arch/mips/momentum/ocelot_g/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/momentum/ocelot_g/gt-irq.c b/arch/mips/momentum/ocelot_g/gt-irq.c deleted file mode 100644 index e5576bd50fa9..000000000000 --- a/arch/mips/momentum/ocelot_g/gt-irq.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * - * Copyright 2002 Momentum Computer - * Author: mdharm@momenco.com - * - * arch/mips/momentum/ocelot_g/gt_irq.c - * Interrupt routines for gt64240. Currently it only handles timer irq. - * - * 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/module.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/kernel_stat.h> -#include <asm/gt64240.h> -#include <asm/io.h> - -unsigned long bus_clock; - -/* - * These are interrupt handlers for the GT on-chip interrupts. They - * all come in to the MIPS on a single interrupt line, and have to - * be handled and ack'ed differently than other MIPS interrupts. - */ - -#if 0 - -struct tq_struct irq_handlers[MAX_CAUSE_REGS][MAX_CAUSE_REG_WIDTH]; -void hook_irq_handler(int int_cause, int bit_num, void *isr_ptr); - -/* - * Hooks IRQ handler to the system. When the system is interrupted - * the interrupt service routine is called. - * - * Inputs : - * int_cause - The interrupt cause number. In EVB64120 two parameters - * are declared, INT_CAUSE_MAIN and INT_CAUSE_HIGH. - * bit_num - Indicates which bit number in the cause register - * isr_ptr - Pointer to the interrupt service routine - */ -void hook_irq_handler(int int_cause, int bit_num, void *isr_ptr) -{ - irq_handlers[int_cause][bit_num].routine = isr_ptr; -} - - -/* - * Enables the IRQ on Galileo Chip - * - * Inputs : - * int_cause - The interrupt cause number. In EVB64120 two parameters - * are declared, INT_CAUSE_MAIN and INT_CAUSE_HIGH. - * bit_num - Indicates which bit number in the cause register - * - * Outputs : - * 1 if successful, 0 if failure - */ -int enable_galileo_irq(int int_cause, int bit_num) -{ - if (int_cause == INT_CAUSE_MAIN) - SET_REG_BITS(CPU_INTERRUPT_MASK_REGISTER, (1 << bit_num)); - else if (int_cause == INT_CAUSE_HIGH) - SET_REG_BITS(CPU_HIGH_INTERRUPT_MASK_REGISTER, - (1 << bit_num)); - else - return 0; - - return 1; -} - -/* - * Disables the IRQ on Galileo Chip - * - * Inputs : - * int_cause - The interrupt cause number. In EVB64120 two parameters - * are declared, INT_CAUSE_MAIN and INT_CAUSE_HIGH. - * bit_num - Indicates which bit number in the cause register - * - * Outputs : - * 1 if successful, 0 if failure - */ -int disable_galileo_irq(int int_cause, int bit_num) -{ - if (int_cause == INT_CAUSE_MAIN) - RESET_REG_BITS(CPU_INTERRUPT_MASK_REGISTER, - (1 << bit_num)); - else if (int_cause == INT_CAUSE_HIGH) - RESET_REG_BITS(CPU_HIGH_INTERRUPT_MASK_REGISTER, - (1 << bit_num)); - else - return 0; - return 1; -} -#endif /* 0 */ - -/* - * Interrupt handler for interrupts coming from the Galileo chip via P0_INT#. - * - * We route the timer interrupt to P0_INT# (IRQ 6), and that's all this - * routine can handle, for now. - * - * In the future, we'll route more interrupts to this pin, and that's why - * we keep this particular structure in the function. - */ - -static irqreturn_t gt64240_p0int_irq(int irq, void *dev) -{ - uint32_t irq_src, irq_src_mask; - int handled; - - /* get the low interrupt cause register */ - irq_src = MV_READ(LOW_INTERRUPT_CAUSE_REGISTER); - - /* get the mask register for this pin */ - irq_src_mask = MV_READ(PCI_0INTERRUPT_CAUSE_MASK_REGISTER_LOW); - - /* mask off only the interrupts we're interested in */ - irq_src = irq_src & irq_src_mask; - - handled = IRQ_NONE; - - /* Check for timer interrupt */ - if (irq_src & 0x00000100) { - handled = IRQ_HANDLED; - irq_src &= ~0x00000100; - - /* Clear any pending cause bits */ - MV_WRITE(TIMER_COUNTER_0_3_INTERRUPT_CAUSE, 0x0); - - /* handle the timer call */ - do_timer(1); -#ifndef CONFIG_SMP - update_process_times(user_mode(get_irq_regs())); -#endif - } - - if (irq_src) { - printk(KERN_INFO - "UNKNOWN P0_INT# interrupt received, irq_src=0x%x\n", - irq_src); - } - - return handled; -} - -/* - * Initializes timer using galileo's built in timer. - */ - -/* - * This will ignore the standard MIPS timer interrupt handler - * that is passed in as *irq (=irq0 in ../kernel/time.c). - * We will do our own timer interrupt handling. - */ -void gt64240_time_init(void) -{ - static struct irqaction timer; - - /* Stop the timer -- we'll use timer #0 */ - MV_WRITE(TIMER_COUNTER_0_3_CONTROL, 0x0); - - /* Load timer value for 100 Hz */ - MV_WRITE(TIMER_COUNTER0, bus_clock / 100); - - /* - * Create the IRQ structure entry for the timer. Since we're too early - * in the boot process to use the "request_irq()" call, we'll hard-code - * the values to the correct interrupt line. - */ - timer.handler = >64240_p0int_irq; - timer.flags = IRQF_SHARED | IRQF_DISABLED; - timer.name = "timer"; - timer.dev_id = NULL; - timer.next = NULL; - timer.mask = CPU_MASK_NONE; - irq_desc[6].action = &timer; - - enable_irq(6); - - /* Clear any pending cause bits */ - MV_WRITE(TIMER_COUNTER_0_3_INTERRUPT_CAUSE, 0x0); - - /* Enable the interrupt for timer 0 */ - MV_WRITE(TIMER_COUNTER_0_3_INTERRUPT_MASK, 0x1); - - /* Enable the timer interrupt for GT-64240 pin P0_INT# */ - MV_WRITE (PCI_0INTERRUPT_CAUSE_MASK_REGISTER_LOW, 0x100); - - /* Configure and start the timer */ - MV_WRITE(TIMER_COUNTER_0_3_CONTROL, 0x3); -} - -void gt64240_irq_init(void) -{ -#if 0 - int i, j; - - /* Reset irq handlers pointers to NULL */ - for (i = 0; i < MAX_CAUSE_REGS; i++) { - for (j = 0; j < MAX_CAUSE_REG_WIDTH; j++) { - irq_handlers[i][j].next = NULL; - irq_handlers[i][j].sync = 0; - irq_handlers[i][j].routine = NULL; - irq_handlers[i][j].data = NULL; - } - } -#endif /* 0 */ -} diff --git a/arch/mips/momentum/ocelot_g/irq.c b/arch/mips/momentum/ocelot_g/irq.c deleted file mode 100644 index 273541fe7087..000000000000 --- a/arch/mips/momentum/ocelot_g/irq.c +++ /dev/null @@ -1,101 +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, 01, 05 Ralf Baechle (ralf@linux-mips.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_cause() & read_c0_status(); - - if (pending & STATUSF_IP2) - do_IRQ(2); - else if (pending & STATUSF_IP3) - do_IRQ(3); - else if (pending & STATUSF_IP4) - do_IRQ(4); - else if (pending & STATUSF_IP5) - do_IRQ(5); - else if (pending & STATUSF_IP6) - do_IRQ(6); - else if (pending & STATUSF_IP7) - do_IRQ(7); - else { - /* - * Now look at the extended interrupts - */ - pending = (read_c0_cause() & (read_c0_intcontrol() << 8)) >> 16; - - if (pending & STATUSF_IP8) - do_IRQ(8); - else if (pending & STATUSF_IP9) - do_IRQ(9); - else if (pending & STATUSF_IP10) - do_IRQ(10); - else if (pending & STATUSF_IP11) - do_IRQ(11); - else - spurious_interrupt(); - } -} - -extern void gt64240_irq_init(void); - -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(); - - gt64240_irq_init(); -} diff --git a/arch/mips/momentum/ocelot_g/ocelot_pld.h b/arch/mips/momentum/ocelot_g/ocelot_pld.h deleted file mode 100644 index 95e0534026d0..000000000000 --- a/arch/mips/momentum/ocelot_g/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 (0xfc000000) - -#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 __PLD_REG_TO_ADDR(reg) ((void *) OCELOT_CS0_ADDR + OCELOT_REG_##reg) -#define OCELOT_PLD_WRITE(x, reg) writeb(x, __PLD_REG_TO_ADDR(reg)) -#define OCELOT_PLD_READ(reg) readb(__PLD_REG_TO_ADDR(reg)) - -#endif /* __MOMENCO_OCELOT_PLD_H__ */ diff --git a/arch/mips/momentum/ocelot_g/prom.c b/arch/mips/momentum/ocelot_g/prom.c deleted file mode 100644 index 836d0830720d..000000000000 --- a/arch/mips/momentum/ocelot_g/prom.c +++ /dev/null @@ -1,84 +0,0 @@ -/* - * Copyright 2002 Momentum Computer Inc. - * Author: Matthew Dharm <mdharm@momenco.com> - * - * Based on Ocelot Linux port, which is - * 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> -#include <asm/gt64240.h> - -#include "ocelot_pld.h" - -struct callvectors* debug_vectors; - -extern unsigned long marvell_base; -extern unsigned long bus_clock; - -#ifdef CONFIG_GALILEO_GT64240_ETH -extern unsigned char prom_mac_addr_base[6]; -#endif - -const char *get_system_type(void) -{ - return "Momentum Ocelot"; -} - -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_G; - -#ifdef CONFIG_GALILEO_GT64240_ETH - /* get the base MAC address for on-board ethernet ports */ - memcpy(prom_mac_addr_base, (void*)0xfc807cf2, 6); -#endif - - while (*env) { - if (strncmp("gtbase", *env, strlen("gtbase")) == 0) { - marvell_base = simple_strtol(*env + strlen("gtbase="), - NULL, 16); - } - if (strncmp("busclock", *env, strlen("busclock")) == 0) { - bus_clock = simple_strtol(*env + strlen("busclock="), - NULL, 10); - } - env++; - } -} - -void __init prom_free_prom_memory(void) -{ -} diff --git a/arch/mips/momentum/ocelot_g/reset.c b/arch/mips/momentum/ocelot_g/reset.c deleted file mode 100644 index 3fd499adf4cf..000000000000 --- a/arch/mips/momentum/ocelot_g/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/momentum/ocelot_g/setup.c b/arch/mips/momentum/ocelot_g/setup.c deleted file mode 100644 index 9db638a7982c..000000000000 --- a/arch/mips/momentum/ocelot_g/setup.c +++ /dev/null @@ -1,267 +0,0 @@ -/* - * BRIEF MODULE DESCRIPTION - * Momentum Computer Ocelot-G (CP7000G) - board dependent boot routines - * - * Copyright (C) 1996, 1997, 2001 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 - * - * 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/pm.h> -#include <linux/timex.h> -#include <linux/vmalloc.h> - -#include <asm/time.h> -#include <asm/bootinfo.h> -#include <asm/page.h> -#include <asm/io.h> -#include <asm/gt64240.h> -#include <asm/irq.h> -#include <asm/pci.h> -#include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/reboot.h> -#include <linux/bootmem.h> - -#include "ocelot_pld.h" - -#ifdef CONFIG_GALILEO_GT64240_ETH -extern unsigned char prom_mac_addr_base[6]; -#endif - -unsigned long marvell_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 gt64240_time_init(void); -extern void momenco_ocelot_irq_setup(void); - -static char reset_reason; - -static unsigned long ENTRYLO(unsigned long paddr) -{ - return ((paddr & PAGE_MASK) | - (_PAGE_PRESENT | __READABLE | __WRITEABLE | _PAGE_GLOBAL | - _CACHE_UNCACHED)) >> 6; -} - -/* setup code for a handoff from a version 2 PMON 2000 PROM */ -void PMON_v2_setup(void) -{ - /* A wired TLB entry for the GT64240 and the serial port. The - GT64240 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 - GT64240 Internal Regs 0xf4000000 0xe0000000 - UARTs (CS2) 0xfd000000 0xe0001000 - */ - add_wired_entry(ENTRYLO(0xf4000000), ENTRYLO(0xf4010000), - 0xf4000000, PM_64K); - add_wired_entry(ENTRYLO(0xfd000000), ENTRYLO(0xfd001000), - 0xfd000000, 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 (CS1) 0xfc800000 0xe0030000 - */ - add_temporary_entry(ENTRYLO(0xfc000000), ENTRYLO(0xfc010000), - 0xfc000000, PM_64K); - add_temporary_entry(ENTRYLO(0xfc800000), ENTRYLO(0xfc810000), - 0xfc800000, PM_64K); - - marvell_base = 0xf4000000; -} - -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; - - printk("Enabling L3 cache..."); - - /* Enable the L3 cache in the GT64120A's CPU Configuration register */ - MV_WRITE(0, MV_READ(0) | (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"); -} - -void __init plat_timer_setup(struct irqaction *irq) -{ -} - -void __init plat_mem_setup(void) -{ - void (*l3func)(unsigned long) = (void *) KSEG1ADDR(setup_l3cache); - unsigned int tmpword; - - board_time_init = gt64240_time_init; - - _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 */ - PMON_v2_setup(); - -#ifdef CONFIG_GALILEO_GT64240_ETH - /* get the mac addr */ - memcpy(prom_mac_addr_base, (void*)0xfc807cf2, 6); -#endif - - /* Turn off the Bit-Error LED */ - OCELOT_PLD_WRITE(0x80, INTCLR); - - tmpword = OCELOT_PLD_READ(BOARDREV); - if (tmpword < 26) - printk("Momenco Ocelot-G: Board Assembly Rev. %c\n", 'A'+tmpword); - else - printk("Momenco Ocelot-G: 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 -- two banks of 256MiB */ - add_memory_region( 0x0<<20, 0x100<<20, BOOT_MEM_RAM); -/* - add_memory_region(0x100<<20, 0x100<<20, BOOT_MEM_RAM); -*/ - break; - case 2: - /* 256MiB -- two banks of 128MiB */ - add_memory_region( 0x0<<20, 0x80<<20, BOOT_MEM_RAM); - add_memory_region(0x80<<20, 0x80<<20, BOOT_MEM_RAM); - break; - case 1: - /* 128MiB -- 64MiB per bank */ - add_memory_region( 0x0<<20, 0x40<<20, BOOT_MEM_RAM); - add_memory_region(0x40<<20, 0x40<<20, BOOT_MEM_RAM); - break; - case 0: - /* 64MiB */ - add_memory_region( 0x0<<20, 0x40<<20, BOOT_MEM_RAM); - break; - } - - /* FIXME: Fix up the DiskOnChip mapping */ - MV_WRITE(0x468, 0xfef73); -} - -/* 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) -{ - /* we're mapping PCI accesses from 0xc0000000 to 0xf0000000 */ - unsigned long io_remap_range; - - io_remap_range = (unsigned long) ioremap(0xc0000000, 0x30000000); - if (!io_remap_range) - panic("Could not ioremap I/O port range"); - - set_io_port_base(io_remap_range - 0xc0000000); - - return 0; -} - -module_init(io_base_ioremap); |
