diff options
Diffstat (limited to 'arch/ppc/syslib/ibm44x_common.c')
| -rw-r--r-- | arch/ppc/syslib/ibm44x_common.c | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/arch/ppc/syslib/ibm44x_common.c b/arch/ppc/syslib/ibm44x_common.c deleted file mode 100644 index 01f99b4a6649..000000000000 --- a/arch/ppc/syslib/ibm44x_common.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * PPC44x system library - * - * 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, 2004 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/time.h> -#include <linux/types.h> -#include <linux/serial.h> -#include <linux/module.h> -#include <linux/initrd.h> - -#include <asm/ibm44x.h> -#include <asm/mmu.h> -#include <asm/machdep.h> -#include <asm/time.h> -#include <asm/ppc4xx_pic.h> -#include <asm/param.h> -#include <asm/bootinfo.h> -#include <asm/ppcboot.h> - -#include <syslib/gen550.h> - -/* Global Variables */ -bd_t __res; - -phys_addr_t fixup_bigphys_addr(phys_addr_t addr, phys_addr_t size) -{ - phys_addr_t page_4gb = 0; - - /* - * Trap the least significant 32-bit portions of an - * address in the 440's 36-bit address space. Fix - * them up with the appropriate ERPN - */ - if ((addr >= PPC44x_IO_LO) && (addr <= PPC44x_IO_HI)) - page_4gb = PPC44x_IO_PAGE; - else if ((addr >= PPC44x_PCI0CFG_LO) && (addr <= PPC44x_PCI0CFG_HI)) - page_4gb = PPC44x_PCICFG_PAGE; -#ifdef CONFIG_440SP - else if ((addr >= PPC44x_PCI1CFG_LO) && (addr <= PPC44x_PCI1CFG_HI)) - page_4gb = PPC44x_PCICFG_PAGE; - else if ((addr >= PPC44x_PCI2CFG_LO) && (addr <= PPC44x_PCI2CFG_HI)) - page_4gb = PPC44x_PCICFG_PAGE; -#endif - else if ((addr >= PPC44x_PCIMEM_LO) && (addr <= PPC44x_PCIMEM_HI)) - page_4gb = PPC44x_PCIMEM_PAGE; - - return (page_4gb | addr); -}; -EXPORT_SYMBOL(fixup_bigphys_addr); - -void __init ibm44x_calibrate_decr(unsigned int freq) -{ - tb_ticks_per_jiffy = freq / HZ; - tb_to_us = mulhwu_scale_factor(freq, 1000000); - - /* Set the time base to zero */ - mtspr(SPRN_TBWL, 0); - mtspr(SPRN_TBWU, 0); - - /* Clear any pending timer interrupts */ - mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS); - - /* Enable decrementer interrupt */ - mtspr(SPRN_TCR, TCR_DIE); -} - -extern void abort(void); - -static void ibm44x_restart(char *cmd) -{ - local_irq_disable(); - abort(); -} - -static void ibm44x_power_off(void) -{ - local_irq_disable(); - for(;;); -} - -static void ibm44x_halt(void) -{ - local_irq_disable(); - for(;;); -} - -/* - * Read the 44x memory controller to get size of system memory. - */ -static unsigned long __init ibm44x_find_end_of_memory(void) -{ - u32 i, bank_config; - u32 mem_size = 0; - - for (i=0; i<4; i++) - { - switch (i) - { - case 0: - mtdcr(DCRN_SDRAM0_CFGADDR, SDRAM0_B0CR); - break; - case 1: - mtdcr(DCRN_SDRAM0_CFGADDR, SDRAM0_B1CR); - break; - case 2: - mtdcr(DCRN_SDRAM0_CFGADDR, SDRAM0_B2CR); - break; - case 3: - mtdcr(DCRN_SDRAM0_CFGADDR, SDRAM0_B3CR); - break; - } - - bank_config = mfdcr(DCRN_SDRAM0_CFGDATA); - - if (!(bank_config & SDRAM_CONFIG_BANK_ENABLE)) - continue; - switch (SDRAM_CONFIG_BANK_SIZE(bank_config)) - { - case SDRAM_CONFIG_SIZE_8M: - mem_size += PPC44x_MEM_SIZE_8M; - break; - case SDRAM_CONFIG_SIZE_16M: - mem_size += PPC44x_MEM_SIZE_16M; - break; - case SDRAM_CONFIG_SIZE_32M: - mem_size += PPC44x_MEM_SIZE_32M; - break; - case SDRAM_CONFIG_SIZE_64M: - mem_size += PPC44x_MEM_SIZE_64M; - break; - case SDRAM_CONFIG_SIZE_128M: - mem_size += PPC44x_MEM_SIZE_128M; - break; - case SDRAM_CONFIG_SIZE_256M: - mem_size += PPC44x_MEM_SIZE_256M; - break; - case SDRAM_CONFIG_SIZE_512M: - mem_size += PPC44x_MEM_SIZE_512M; - break; - } - } - return mem_size; -} - -void __init ibm44x_platform_init(unsigned long r3, unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7) -{ - parse_bootinfo(find_bootinfo()); - - /* - * If we were passed in a board information, copy it into the - * residual data area. - */ - if (r3) - __res = *(bd_t *)(r3 + KERNELBASE); - -#if defined(CONFIG_BLK_DEV_INITRD) - /* - * If the init RAM disk has been configured in, and there's a valid - * starting address for it, set it up. - */ - if (r4) { - initrd_start = r4 + KERNELBASE; - initrd_end = r5 + KERNELBASE; - } -#endif /* CONFIG_BLK_DEV_INITRD */ - - /* Copy the kernel command line arguments to a safe place. */ - - if (r6) { - *(char *) (r7 + KERNELBASE) = 0; - strcpy(cmd_line, (char *) (r6 + KERNELBASE)); - } - - ppc_md.init_IRQ = ppc4xx_pic_init; - ppc_md.find_end_of_memory = ibm44x_find_end_of_memory; - ppc_md.restart = ibm44x_restart; - ppc_md.power_off = ibm44x_power_off; - ppc_md.halt = ibm44x_halt; - -#ifdef CONFIG_SERIAL_TEXT_DEBUG - ppc_md.progress = gen550_progress; -#endif /* CONFIG_SERIAL_TEXT_DEBUG */ -#ifdef CONFIG_KGDB - ppc_md.kgdb_map_scc = gen550_kgdb_map_scc; -#endif - - /* - * The Abatron BDI JTAG debugger does not tolerate others - * mucking with the debug registers. - */ -#if !defined(CONFIG_BDI_SWITCH) - /* Enable internal debug mode */ - mtspr(SPRN_DBCR0, (DBCR0_IDM)); - - /* Clear any residual debug events */ - mtspr(SPRN_DBSR, 0xffffffff); -#endif -} - -/* Called from machine_check_exception */ -void platform_machine_check(struct pt_regs *regs) -{ -#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) - printk("PLB0: BEAR=0x%08x%08x ACR= 0x%08x BESR= 0x%08x%08x\n", - mfdcr(DCRN_PLB0_BEARH), mfdcr(DCRN_PLB0_BEARL), - mfdcr(DCRN_PLB0_ACR), mfdcr(DCRN_PLB0_BESRH), - mfdcr(DCRN_PLB0_BESRL)); - printk("PLB1: BEAR=0x%08x%08x ACR= 0x%08x BESR= 0x%08x%08x\n", - mfdcr(DCRN_PLB1_BEARH), mfdcr(DCRN_PLB1_BEARL), - mfdcr(DCRN_PLB1_ACR), mfdcr(DCRN_PLB1_BESRH), - mfdcr(DCRN_PLB1_BESRL)); -#else - printk("PLB0: BEAR=0x%08x%08x ACR= 0x%08x BESR= 0x%08x\n", - mfdcr(DCRN_PLB0_BEARH), mfdcr(DCRN_PLB0_BEARL), - mfdcr(DCRN_PLB0_ACR), mfdcr(DCRN_PLB0_BESR)); -#endif - printk("POB0: BEAR=0x%08x%08x BESR0=0x%08x BESR1=0x%08x\n", - mfdcr(DCRN_POB0_BEARH), mfdcr(DCRN_POB0_BEARL), - mfdcr(DCRN_POB0_BESR0), mfdcr(DCRN_POB0_BESR1)); - printk("OPB0: BEAR=0x%08x%08x BSTAT=0x%08x\n", - mfdcr(DCRN_OPB0_BEARH), mfdcr(DCRN_OPB0_BEARL), - mfdcr(DCRN_OPB0_BSTAT)); -} |