/* sysLib.c - Wind River SBC8641 system-dependent library */
/*
* Copyright (c) 2007-2010, 2012, 2013 Wind River Systems, Inc.
*
* The right to copy, distribute, modify or otherwise make use
* of this software may be licensed only pursuant to the terms
* of an applicable Wind River license agreement.
*/
/*
modification history
--------------------
01z,26jun13,d_l fix coverity errors. (WIND00423743)
01y,14nov12,d_l fix the AMP device filter. (WIND00387606)
01x,26aug10,liu change vxIpiEmit to vxIpiPhysEmit. (WIND00226567)
01w,19oct10,pch Ensure both CPUs' D-caches are flushed during SMP
sysToMonitor()
01v,28jul10,liu allow to conditionnaly power management support. (WIND00185423)
01u,28jul10,liu flush L2 cache when reboot.(WIND00218322)
01t,10sep09,x_z Replace sysSvrGet() with vxSvrGet() of vxALib.s
01s,18nov08,pmr Fix WIND00137387: conditionalize BAT for upper memory
01r,12nov08,kab WIND00143297 - Fix build of CPU1 for gnu
01q,06nov08,pmr WIND00140224: shutdown ints on core1 for wrload
01p,23oct08,kab Update sysAmpCpuPrep to new sig per design mod
01o,16oct08,kab Add sysAmpCpuPrep() - wrload/multios support
01n,04sep08,dtr Add new sysAmpCpuStatusGet/Set calls.
01m,03sep08,dtr Switch to startcore to sysAmpCpuEnable.
01l,29aug08,kab Change _WRS_VX_SMP to _WRS_CONFIG_SMP
01k,11aug08,dtr Add wrload support.
01j,11jul08,to made vector area cacheable and coherent
01i,24apr08,dtr Remove hard coded IPI enable - WIND00121614.
01h,17apr08,to make BAT area not user-accessible
01g,25oct07,to added CPU1_INIT_START_ADR (WIND00107937)
01f,11sep07,h_k removed vxbIntToCpuRoute() call from sysCpuEnable().
(CQ:104081)
01e,04sep07,wap Add support for SMP (WIND00103522)
01d,30aug07,wap Switch to VxBus ETSEC and PCI drivers (WIND00103172)
01c,23aug07,pgh Fix apigen errors.
01b,30jul07,vik removed cmdLine.c inclusion
01a,20jun07,x_s initial creation.
*/
/*
DESCRIPTION
This library provides board-specific routines. The chip drivers included are:
sysEpic.c - programmable interrupt controller driver
sysDuart.c - duart controller config
ns16550Sio.c - National Semiconductor 16550 UART driver
ppcDecTimer.c - PowerPC decrementer timer library (system clock)
flashMem.c - 29F040 flash memory device driver.
altiVecLib.c - Altivec support for MPC 7400
sysCacheLib.s - L1 and L2 cache lock support
INCLUDE FILES: sysLib.h
SEE ALSO:
.pG "Configuration"
*/
/* includes */
#include <stdio.h>
#include <vxWorks.h>
#include <vsbConfig.h>
#include <vme.h>
#include <memLib.h>
#include <cacheLib.h>
#include <sysLib.h>
#include "config.h"
#include <string.h>
#include <intLib.h>
#include <logLib.h>
#include <taskLib.h>
#include <vxLib.h>
#include <tyLib.h>
#include <vmLib.h>
#include <arch/ppc/mmu603Lib.h>
#include <arch/ppc/vxPpcLib.h>
#ifdef INCLUDE_CACHE_L2
#include "sysL2Cache.h"
#endif
#ifdef INCLUDE_VXBUS
#include <vxBusLib.h>
#include <hwif/vxbus/vxBus.h>
#endif
#if defined INCLUDE_PCI_BUS
#include <drv/pci/pciConfigLib.h>
#include <drv/pci/pciAutoConfigLib.h>
#include <drv/pci/pciIntLib.h>
#endif
#if defined (INCLUDE_ALTIVEC)
#include <altivecLib.h>
#endif
#ifdef _WRS_CONFIG_SMP
#include <private/kernelLibP.h> /* KERNEL_ENTERED_ME() */
#ifndef VX_CPC_ASYNC
#define VX_CPC_ASYNC 2
typedef void (*CPC_FUNC) (void *, int);
IMPORT void cpcInvoke (cpuset_t, CPC_FUNC, void *, int, int);
#endif
#endif
#ifdef _WRS_VX_AMP
#include <vxIpiLib.h>
IMPORT int sysStartType;
#endif /* _WRS_VX_AMP */
#ifdef INCLUDE_NV_RAM
# include "eeprom.c"
# include <mem/byteNvRam.c> /* Generic NVRAM routines */
#else
# include <mem/nullNvRam.c>
#endif /* INCLUDE_NV_RAM */
IMPORT int (* _func_altivecProbeRtn) () ;
/* defines */
#define ZERO 0
#define SYS_MODEL "Wind River SBC8641D"
/* globals */
/*
* sysBatDesc[] is used to initialize the block address translation (BAT)
* registers within the PowerPC 603/604 MMU. BAT hits take precedence
* over Page Table Entry (PTE) hits and are faster. Overlap of memory
* coverage by BATs and PTEs is permitted in cases where either the IBATs
* or the DBATs do not provide the necessary mapping (PTEs apply to both
* instruction AND data space, without distinction).
*
* The primary means of memory control for VxWorks is the MMU PTE support
* provided by vmLib and cacheLib. Use of BAT registers will conflict
* with vmLib support. Users may use BAT registers for i/o mapping and
* other purposes but are cautioned that conflicts with caching and mapping
* through vmLib may arise. Be aware that memory spaces mapped through a BAT
* are not mapped by a PTE and any vmLib() or cacheLib() operations on such
* areas will not be effective, nor will they report any error conditions.
*
* Note: BAT registers CANNOT be disabled - they are always active.
* For example, setting them all to zero will yield four identical data
* and instruction memory spaces starting at local address zero, each 128KB
* in size, and each set as write-back and cache-enabled. Hence, the BAT regs
* MUST be configured carefully.
*
* With this in mind, it is recommended that the BAT registers be used
* to map LARGE memory areas external to the processor if possible.
* If not possible, map sections of high RAM and/or PROM space where
* fine grained control of memory access is not needed. This has the
* beneficial effects of reducing PTE table size (8 bytes per 4k page)
* and increasing the speed of access to the largest possible memory space.
* Use the PTE table only for memory which needs fine grained (4KB pages)
* control or which is too small to be mapped by the BAT regs.
*
* The BAT configuration for 4xx/6xx-based PPC boards is as follows:
* All BATs point to PROM/FLASH memory so that end customer may configure
* them as required.
*
* [Ref: chapter 7, PowerPC Microprocessor Family: The Programming Environments]
*/
UINT32 sysBatDesc [2 * (_MMU_NUM_IBAT + _MMU_NUM_DBAT +_MMU_NUM_EXTRA_IBAT+_MMU_NUM_EXTRA_DBAT)] =
{
/* I BAT 0 */
((FLASH_BASE_ADRS & _MMU_UBAT_BEPI_MASK) | _MMU_UBAT_BL_16M | _MMU_UBAT_VS),
((ROM_BASE_ADRS & _MMU_LBAT_BRPN_MASK) | _MMU_LBAT_PP_RW |
_MMU_LBAT_CACHE_INHIBIT),
/* I BAT 1 */
0,0,
/* I BAT 2 */
0,0,
/* I BAT 3 */
0,0,
/* D BAT 0 */
((FLASH_BASE_ADRS & _MMU_UBAT_BEPI_MASK) | _MMU_UBAT_BL_16M | _MMU_UBAT_VS),
((ROM_BASE_ADRS & _MMU_LBAT_BRPN_MASK) | _MMU_LBAT_PP_RW |
_MMU_LBAT_CACHE_INHIBIT),
/* D BAT 1 */
((CCSBAR & _MMU_UBAT_BEPI_MASK) | _MMU_UBAT_BL_16M | _MMU_UBAT_VS),
((CCSBAR & _MMU_LBAT_BRPN_MASK) | _MMU_LBAT_PP_RW |
_MMU_LBAT_CACHE_INHIBIT | _MMU_LBAT_GUARDED),
/* D BAT 2 */
#ifdef _WRS_VX_AMP
((0x10000000 & _MMU_UBAT_BEPI_MASK) | _MMU_UBAT_BL_256M | _MMU_UBAT_VS),
((0x10000000 & _MMU_LBAT_BRPN_MASK) | _MMU_LBAT_PP_RW |
_MMU_LBAT_MEM_COHERENT),
#else
0,0,
#endif
/* D BAT 3 */
0,0
/* These entries are for the I/D BAT's (4-7) on the MPC7455/755.
They should be defined in the following order.
IBAT4U,IBAT4L,IBAT5U,IBAT5L,IBAT6U,IBAT6L,IBAT7U,IBAT7L,
DBAT4U,DBAT4L,DBAT5U,DBAT5L,DBAT6U,DBAT6L,DBAT7U,DBAT7L,
*/
,
/* I BAT 4 */
0,0,
/* I BAT 5 */
0,0,
/* I BAT 6 */
0,0,
/* I BAT 7 */
0,0,
/* D BAT 4 */
((PERIPH_BASE & _MMU_UBAT_BEPI_MASK) | _MMU_UBAT_BL_16M | _MMU_UBAT_VS),
((PERIPH_BASE & _MMU_LBAT_BRPN_MASK) | _MMU_LBAT_PP_RW |
_MMU_LBAT_CACHE_INHIBIT | _MMU_LBAT_GUARDED),
/* D BAT 5 */
((0xf4000000 & _MMU_UBAT_BEPI_MASK) | _MMU_UBAT_BL_1M | _MMU_UBAT_VS),
((0xf4000000 & _MMU_LBAT_BRPN_MASK) | _MMU_LBAT_PP_RW |
_MMU_LBAT_CACHE_INHIBIT | _MMU_LBAT_GUARDED),
/* D BAT 6 */
0,0,
/* D BAT 7 */
0,0
};
/*
* sysPhysMemDesc[] is used to initialize the Page Table Entry (PTE) array
* used by the MMU to translate addresses with single page (4k) granularity.
* PTE memory space should not, in general
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