diff options
Diffstat (limited to 'arch/ppc/syslib/ppc83xx_setup.c')
| -rw-r--r-- | arch/ppc/syslib/ppc83xx_setup.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/arch/ppc/syslib/ppc83xx_setup.c b/arch/ppc/syslib/ppc83xx_setup.c deleted file mode 100644 index 602a86891f7..00000000000 --- a/arch/ppc/syslib/ppc83xx_setup.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * arch/ppc/syslib/ppc83xx_setup.c - * - * MPC83XX common board code - * - * Maintainer: Kumar Gala <kumar.gala@freescale.com> - * - * Copyright 2005 Freescale Semiconductor Inc. - * - * 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/config.h> -#include <linux/types.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/serial.h> -#include <linux/tty.h> /* for linux/serial_core.h */ -#include <linux/serial_core.h> -#include <linux/serial_8250.h> - -#include <asm/time.h> -#include <asm/mpc83xx.h> -#include <asm/mmu.h> -#include <asm/ppc_sys.h> -#include <asm/kgdb.h> -#include <asm/delay.h> - -#include <syslib/ppc83xx_setup.h> - -phys_addr_t immrbar; - -/* Return the amount of memory */ -unsigned long __init -mpc83xx_find_end_of_memory(void) -{ - bd_t *binfo; - - binfo = (bd_t *) __res; - - return binfo->bi_memsize; -} - -long __init -mpc83xx_time_init(void) -{ -#define SPCR_OFFS 0x00000110 -#define SPCR_TBEN 0x00400000 - - bd_t *binfo = (bd_t *)__res; - u32 *spcr = ioremap(binfo->bi_immr_base + SPCR_OFFS, 4); - - *spcr |= SPCR_TBEN; - - iounmap(spcr); - - return 0; -} - -/* The decrementer counts at the system (internal) clock freq divided by 4 */ -void __init -mpc83xx_calibrate_decr(void) -{ - bd_t *binfo = (bd_t *) __res; - unsigned int freq, divisor; - - freq = binfo->bi_busfreq; - divisor = 4; - tb_ticks_per_jiffy = freq / HZ / divisor; - tb_to_us = mulhwu_scale_factor(freq / divisor, 1000000); -} - -#ifdef CONFIG_SERIAL_8250 -void __init -mpc83xx_early_serial_map(void) -{ -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - struct uart_port serial_req; -#endif - struct plat_serial8250_port *pdata; - bd_t *binfo = (bd_t *) __res; - pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC83xx_DUART); - - /* Setup serial port access */ - pdata[0].uartclk = binfo->bi_busfreq; - pdata[0].mapbase += binfo->bi_immr_base; - pdata[0].membase = ioremap(pdata[0].mapbase, 0x100); - -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - memset(&serial_req, 0, sizeof (serial_req)); - serial_req.iotype = SERIAL_IO_MEM; - serial_req.mapbase = pdata[0].mapbase; - serial_req.membase = pdata[0].membase; - serial_req.regshift = 0; - - gen550_init(0, &serial_req); -#endif - - pdata[1].uartclk = binfo->bi_busfreq; - pdata[1].mapbase += binfo->bi_immr_base; - pdata[1].membase = ioremap(pdata[1].mapbase, 0x100); - -#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) - /* Assume gen550_init() doesn't modify serial_req */ - serial_req.mapbase = pdata[1].mapbase; - serial_req.membase = pdata[1].membase; - - gen550_init(1, &serial_req); -#endif -} -#endif - -void -mpc83xx_restart(char *cmd) -{ - volatile unsigned char __iomem *reg; - unsigned char tmp; - - reg = ioremap(BCSR_PHYS_ADDR, BCSR_SIZE); - - local_irq_disable(); - - /* - * Unlock the BCSR bits so a PRST will update the contents. - * Otherwise the reset asserts but doesn't clear. - */ - tmp = in_8(reg + BCSR_MISC_REG3_OFF); - tmp |= BCSR_MISC_REG3_CNFLOCK; /* low true, high false */ - out_8(reg + BCSR_MISC_REG3_OFF, tmp); - - /* - * Trigger a reset via a low->high transition of the - * PORESET bit. - */ - tmp = in_8(reg + BCSR_MISC_REG2_OFF); - tmp &= ~BCSR_MISC_REG2_PORESET; - out_8(reg + BCSR_MISC_REG2_OFF, tmp); - - udelay(1); - - tmp |= BCSR_MISC_REG2_PORESET; - out_8(reg + BCSR_MISC_REG2_OFF, tmp); - - for(;;); -} - -void -mpc83xx_power_off(void) -{ - local_irq_disable(); - for(;;); -} - -void -mpc83xx_halt(void) -{ - local_irq_disable(); - for(;;); -} - -/* PCI SUPPORT DOES NOT EXIT, MODEL after ppc85xx_setup.c */ |