forked from Imagelibrary/rtems
- Simple timing functions based on a time base reference.
- u-boot header file
This commit is contained in:
Thomas Doerfler
@@ -1,3 +1,10 @@
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2008-07-09 Sebastian Huber <sebastian.huber@embedded-brains.de>
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* shared/clock/clock.c: Alternative clock driver. Uses exception handler
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directly. Supports special variants for Book E and e300 cores. For
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standard decrementer CPUs the new decrementer value is calculated with
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reference to a time base so that a time drift is avoided.
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2008-07-01 Joel Sherrill <joel.sherrill@oarcorp.com>
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* shared/uboot_getenv.c: New file.
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@@ -30,7 +30,7 @@
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#define TSEC_IFMODE_GMII 1
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#if defined(MPC8349EAMDS)
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#define TSEC_IFMODE TSEC_IFMODE_GMII
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#define TSEC_IFMODE TSEC_IFMODE_RGMII
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#endif
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#if defined(HSC_CM01)
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77
c/src/lib/libbsp/powerpc/shared/include/tictac.h
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77
c/src/lib/libbsp/powerpc/shared/include/tictac.h
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@@ -0,0 +1,77 @@
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/**
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* @file
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*
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* @ingroup powerpc_shared
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*
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* @brief Header file for tic-tac code.
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*/
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/*
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* Copyright (c) 2008
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* Embedded Brains GmbH
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* Obere Lagerstr. 30
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* D-82178 Puchheim
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* Germany
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* rtems@embedded-brains.de
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*
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rtems.com/license/LICENSE.
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*/
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/**
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* @brief Reset reference ticks for tac().
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*/
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static inline void tic()
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{
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uint32_t tmp;
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asm volatile (
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"mftb 0;"
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"stw 0, ppc_tic_tac@sdarel(13);"
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: "=r" (tmp)
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);
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}
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/**
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* @brief Returns number of ticks since last tic().
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*/
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static inline uint32_t tac()
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{
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uint32_t ticks;
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uint32_t tmp;
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asm volatile (
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"mftb %0;"
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"lwz %1, ppc_tic_tac@sdarel(13);"
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"subf %0, %1, %0;"
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: "=r" (ticks), "=r" (tmp)
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);
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return ticks;
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}
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/**
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* @brief Reset reference ticks for bam().
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*/
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static inline void boom()
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{
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uint32_t tmp;
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asm volatile (
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"mftb 0;"
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"stw 0, ppc_boom_bam@sdarel(13);"
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: "=r" (tmp)
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);
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}
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/**
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* @brief Returns number of ticks since last boom().
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*/
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static inline uint32_t bam()
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{
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uint32_t ticks;
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uint32_t tmp;
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asm volatile (
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"mftb %0;"
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"lwz %1, ppc_boom_bam@sdarel(13);"
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"subf %0, %1, %0;"
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: "=r" (ticks), "=r" (tmp)
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);
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return ticks;
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}
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142
c/src/lib/libbsp/powerpc/shared/include/u-boot.h
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142
c/src/lib/libbsp/powerpc/shared/include/u-boot.h
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@@ -0,0 +1,142 @@
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/*
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* (C) Copyright 2000 - 2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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********************************************************************
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* NOTE: This header file defines an interface to U-Boot. Including
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* this (unmodified) header file in another file is considered normal
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* use of U-Boot, and does *not* fall under the heading of "derived
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* work".
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********************************************************************
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*/
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#ifndef __U_BOOT_H__
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#define __U_BOOT_H__
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/*
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* Board information passed to Linux kernel from U-Boot
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*
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* include/asm-ppc/u-boot.h
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*/
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#ifndef __ASSEMBLY__
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typedef struct bd_info {
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unsigned long bi_memstart; /* start of DRAM memory */
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unsigned long bi_memsize; /* size of DRAM memory in bytes */
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unsigned long bi_flashstart; /* start of FLASH memory */
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unsigned long bi_flashsize; /* size of FLASH memory */
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unsigned long bi_flashoffset; /* reserved area for startup monitor */
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unsigned long bi_sramstart; /* start of SRAM memory */
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unsigned long bi_sramsize; /* size of SRAM memory */
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#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) \
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|| defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
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unsigned long bi_immr_base; /* base of IMMR register */
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#endif
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#if defined(CONFIG_MPC5xxx)
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unsigned long bi_mbar_base; /* base of internal registers */
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#endif
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#if defined(CONFIG_MPC83XX)
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unsigned long bi_immrbar;
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#endif
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#if defined(CONFIG_MPC8220)
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unsigned long bi_mbar_base; /* base of internal registers */
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unsigned long bi_inpfreq; /* Input Freq, In MHz */
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unsigned long bi_pcifreq; /* PCI Freq, in MHz */
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unsigned long bi_pevfreq; /* PEV Freq, in MHz */
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unsigned long bi_flbfreq; /* Flexbus Freq, in MHz */
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unsigned long bi_vcofreq; /* VCO Freq, in MHz */
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#endif
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unsigned long bi_bootflags; /* boot / reboot flag (for LynxOS) */
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unsigned long bi_ip_addr; /* IP Address */
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unsigned char bi_enetaddr[6]; /* Ethernet adress */
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unsigned short bi_ethspeed; /* Ethernet speed in Mbps */
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unsigned long bi_intfreq; /* Internal Freq, in MHz */
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unsigned long bi_busfreq; /* Bus Freq, in MHz */
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#if defined(CONFIG_CPM2)
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unsigned long bi_cpmfreq; /* CPM_CLK Freq, in MHz */
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unsigned long bi_brgfreq; /* BRG_CLK Freq, in MHz */
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unsigned long bi_sccfreq; /* SCC_CLK Freq, in MHz */
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unsigned long bi_vco; /* VCO Out from PLL, in MHz */
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#endif
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#if defined(CONFIG_MPC512X)
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unsigned long bi_ipsfreq; /* IPS Bus Freq, in MHz */
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#endif /* CONFIG_MPC512X */
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#if defined(CONFIG_MPC5xxx)
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unsigned long bi_ipbfreq; /* IPB Bus Freq, in MHz */
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unsigned long bi_pcifreq; /* PCI Bus Freq, in MHz */
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#endif
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unsigned long bi_baudrate; /* Console Baudrate */
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#if defined(CONFIG_405) || \
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defined(CONFIG_405GP) || \
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defined(CONFIG_405CR) || \
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defined(CONFIG_405EP) || \
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defined(CONFIG_405EZ) || \
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defined(CONFIG_405EX) || \
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defined(CONFIG_440)
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unsigned char bi_s_version[4]; /* Version of this structure */
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unsigned char bi_r_version[32]; /* Version of the ROM (AMCC) */
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unsigned int bi_procfreq; /* CPU (Internal) Freq, in Hz */
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unsigned int bi_plb_busfreq; /* PLB Bus speed, in Hz */
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unsigned int bi_pci_busfreq; /* PCI Bus speed, in Hz */
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unsigned char bi_pci_enetaddr[6]; /* PCI Ethernet MAC address */
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#endif
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#if defined(CONFIG_HYMOD)
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hymod_conf_t bi_hymod_conf; /* hymod configuration information */
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#endif
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#ifdef CONFIG_HAS_ETH1
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/* second onboard ethernet port */
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unsigned char bi_enet1addr[6];
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#endif
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#ifdef CONFIG_HAS_ETH2
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/* third onboard ethernet port */
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unsigned char bi_enet2addr[6];
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#endif
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#ifdef CONFIG_HAS_ETH3
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unsigned char bi_enet3addr[6];
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#endif
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#if defined(CONFIG_405GP) || defined(CONFIG_405EP) || \
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defined(CONFIG_405EZ) || defined(CONFIG_440GX) || \
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defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
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defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
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defined(CONFIG_460EX) || defined(CONFIG_460GT)
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unsigned int bi_opbfreq; /* OPB clock in Hz */
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int bi_iic_fast[2]; /* Use fast i2c mode */
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#endif
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#if defined(CONFIG_NX823)
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unsigned char bi_sernum[8];
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#endif
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#if defined(CONFIG_4xx)
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#if defined(CONFIG_440GX) || \
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defined(CONFIG_460EX) || defined(CONFIG_460GT)
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int bi_phynum[4]; /* Determines phy mapping */
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int bi_phymode[4]; /* Determines phy mode */
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#elif defined(CONFIG_405EP) || defined(CONFIG_440)
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int bi_phynum[2]; /* Determines phy mapping */
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int bi_phymode[2]; /* Determines phy mode */
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#else
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int bi_phynum[1]; /* Determines phy mapping */
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int bi_phymode[1]; /* Determines phy mode */
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#endif
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#endif /* defined(CONFIG_4xx) */
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} bd_t;
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#endif /* __ASSEMBLY__ */
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#endif /* __U_BOOT_H__ */
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31
c/src/lib/libbsp/powerpc/shared/src/tictac.c
Normal file
31
c/src/lib/libbsp/powerpc/shared/src/tictac.c
Normal file
@@ -0,0 +1,31 @@
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/**
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* @file
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*
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* @ingroup powerpc_shared
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*
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* @brief Source file for tic-tac code.
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*/
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/*
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* Copyright (c) 2008
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* Embedded Brains GmbH
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* Obere Lagerstr. 30
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* D-82178 Puchheim
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* Germany
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* rtems@embedded-brains.de
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*
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rtems.com/license/LICENSE.
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*/
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#include <stdint.h>
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/**
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* @brief Referenc value for tac().
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*/
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uint32_t ppc_tic_tac = 0;
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/**
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* @brief Referenc value for bam().
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*/
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uint32_t ppc_boom_bam = 0;
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