diff options
Diffstat (limited to 'arch/ppc/platforms/85xx/sbc8560.c')
| -rw-r--r-- | arch/ppc/platforms/85xx/sbc8560.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/arch/ppc/platforms/85xx/sbc8560.c b/arch/ppc/platforms/85xx/sbc8560.c new file mode 100644 index 00000000000..9ab05e590c3 --- /dev/null +++ b/arch/ppc/platforms/85xx/sbc8560.c @@ -0,0 +1,227 @@ +/* + * arch/ppc/platforms/85xx/sbc8560.c + * + * Wind River SBC8560 board specific routines + * + * Maintainer: Kumar Gala <kumar.gala@freescale.com> + * + * Copyright 2004 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/stddef.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/reboot.h> +#include <linux/pci.h> +#include <linux/kdev_t.h> +#include <linux/major.h> +#include <linux/console.h> +#include <linux/delay.h> +#include <linux/irq.h> +#include <linux/seq_file.h> +#include <linux/root_dev.h> +#include <linux/serial.h> +#include <linux/tty.h> /* for linux/serial_core.h */ +#include <linux/serial_core.h> +#include <linux/initrd.h> +#include <linux/module.h> +#include <linux/fsl_devices.h> + +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/page.h> +#include <asm/atomic.h> +#include <asm/time.h> +#include <asm/io.h> +#include <asm/machdep.h> +#include <asm/prom.h> +#include <asm/open_pic.h> +#include <asm/bootinfo.h> +#include <asm/pci-bridge.h> +#include <asm/mpc85xx.h> +#include <asm/irq.h> +#include <asm/immap_85xx.h> +#include <asm/kgdb.h> +#include <asm/ppc_sys.h> +#include <mm/mmu_decl.h> + +#include <syslib/ppc85xx_common.h> +#include <syslib/ppc85xx_setup.h> + +#ifdef CONFIG_SERIAL_8250 +static void __init +sbc8560_early_serial_map(void) +{ + struct uart_port uart_req; + + /* Setup serial port access */ + memset(&uart_req, 0, sizeof (uart_req)); + uart_req.irq = MPC85xx_IRQ_EXT9; + uart_req.flags = STD_COM_FLAGS; + uart_req.uartclk = BASE_BAUD * 16; + uart_req.iotype = SERIAL_IO_MEM; + uart_req.mapbase = UARTA_ADDR; + uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART0_SIZE); + uart_req.type = PORT_16650; + +#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) + gen550_init(0, &uart_req); +#endif + + if (early_serial_setup(&uart_req) != 0) + printk("Early serial init of port 0 failed\n"); + + /* Assume early_serial_setup() doesn't modify uart_req */ + uart_req.line = 1; + uart_req.mapbase = UARTB_ADDR; + uart_req.membase = ioremap(uart_req.mapbase, MPC85xx_UART1_SIZE); + uart_req.irq = MPC85xx_IRQ_EXT10; + +#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB) + gen550_init(1, &uart_req); +#endif + + if (early_serial_setup(&uart_req) != 0) + printk("Early serial init of port 1 failed\n"); +} +#endif + +/* ************************************************************************ + * + * Setup the architecture + * + */ +static void __init +sbc8560_setup_arch(void) +{ + bd_t *binfo = (bd_t *) __res; + unsigned int freq; + struct gianfar_platform_data *pdata; + + /* get the core frequency */ + freq = binfo->bi_intfreq; + + if (ppc_md.progress) + ppc_md.progress("sbc8560_setup_arch()", 0); + + /* Set loops_per_jiffy to a half-way reasonable value, + for use until calibrate_delay gets called. */ + loops_per_jiffy = freq / HZ; + +#ifdef CONFIG_PCI + /* setup PCI host bridges */ + mpc85xx_setup_hose(); +#endif +#ifdef CONFIG_SERIAL_8250 + sbc8560_early_serial_map(); +#endif +#ifdef CONFIG_SERIAL_TEXT_DEBUG + /* Invalidate the entry we stole earlier the serial ports + * should be properly mapped */ + invalidate_tlbcam_entry(NUM_TLBCAMS - 1); +#endif + + /* setup the board related information for the enet controllers */ + pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1); + pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; + pdata->interruptPHY = MPC85xx_IRQ_EXT6; + pdata->phyid = 25; + /* fixup phy address */ + pdata->phy_reg_addr += binfo->bi_immr_base; + memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6); + + pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2); + pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; + pdata->interruptPHY = MPC85xx_IRQ_EXT7; + pdata->phyid = 26; + /* fixup phy address */ + pdata->phy_reg_addr += binfo->bi_immr_base; + memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6); + +#ifdef CONFIG_BLK_DEV_INITRD + if (initrd_start) + ROOT_DEV = Root_RAM0; + else +#endif +#ifdef CONFIG_ROOT_NFS + ROOT_DEV = Root_NFS; +#else + ROOT_DEV = Root_HDA1; +#endif +} + +/* ************************************************************************ */ +void __init +platform_init(unsigned long r3, unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7) +{ + /* parse_bootinfo must always be called first */ + parse_bootinfo(find_bootinfo()); + + /* + * If we were passed in a board information, copy it into the + * residual data area. + */ + if (r3) { + memcpy((void *) __res, (void *) (r3 + KERNELBASE), + sizeof (bd_t)); + } + +#ifdef CONFIG_SERIAL_TEXT_DEBUG + /* Use the last TLB entry to map CCSRBAR to allow access to DUART regs */ + settlbcam(NUM_TLBCAMS - 1, UARTA_ADDR, + UARTA_ADDR, 0x1000, _PAGE_IO, 0); +#endif + +#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)); + } + + identify_ppc_sys_by_id(mfspr(SPRN_SVR)); + + /* setup the PowerPC module struct */ + ppc_md.setup_arch = sbc8560_setup_arch; + ppc_md.show_cpuinfo = sbc8560_show_cpuinfo; + + ppc_md.init_IRQ = sbc8560_init_IRQ; + ppc_md.get_irq = openpic_get_irq; + + ppc_md.restart = mpc85xx_restart; + ppc_md.power_off = mpc85xx_power_off; + ppc_md.halt = mpc85xx_halt; + + ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory; + + ppc_md.time_init = NULL; + ppc_md.set_rtc_time = NULL; + ppc_md.get_rtc_time = NULL; + ppc_md.calibrate_decr = mpc85xx_calibrate_decr; + +#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG) + ppc_md.progress = gen550_progress; +#endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */ + + if (ppc_md.progress) + ppc_md.progress("sbc8560_init(): exit", 0); +} |