/* * Copyright 2004 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * * Change log: * * 20050101: Eran Liberty (liberty@freescale.com) * Initial file creating (porting from 85XX & 8260) */ #include #include #include DECLARE_GLOBAL_DATA_PTR; /* * Breathe some life into the CPU... * * Set up the memory map, * initialize a bunch of registers, * initialize the UPM's */ void cpu_init_f (volatile immap_t * im) { /* Pointer is writable since we allocated a register for it */ gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET); /* Clear initial global data */ memset ((void *) gd, 0, sizeof (gd_t)); /* system performance tweaking */ #ifdef CFG_ACR_PIPE_DEP /* Arbiter pipeline depth */ im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) | (3 << ACR_PIPE_DEP_SHIFT); #endif #ifdef CFG_SPCR_TSEC1EP /* TSEC1 Emergency priority */ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC1EP) | (3 << SPCR_TSEC1EP_SHIFT); #endif #ifdef CFG_SPCR_TSEC2EP /* TSEC2 Emergency priority */ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (3 << SPCR_TSEC2EP_SHIFT); #endif #ifdef CFG_SCCR_TSEC1CM /* TSEC1 clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (1 << SCCR_TSEC1CM_SHIFT); #endif #ifdef CFG_SCCR_TSEC2CM /* TSEC2 & I2C1 clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (1 << SCCR_TSEC2CM_SHIFT); #endif #ifdef CFG_ACR_RPTCNT /* Arbiter repeat count */ im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) | (3 << ACR_RPTCNT_SHIFT)); #endif /* RSR - Reset Status Register - clear all status (4.6.1.3) */ gd->reset_status = im->reset.rsr; im->reset.rsr = ~(RSR_RES); /* * RMR - Reset Mode Register * contains checkstop reset enable (4.6.1.4) */ im->reset.rmr = (RMR_CSRE & (1<lbus.lcrr = CFG_LCRR; /* Enable Time Base & Decrimenter ( so we will have udelay() )*/ im->sysconf.spcr |= SPCR_TBEN; /* System General Purpose Register */ #ifdef CFG_SICRH im->sysconf.sicrh = CFG_SICRH; #endif #ifdef CFG_SICRL im->sysconf.sicrl = CFG_SICRL; #endif /* * Memory Controller: */ /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary * addresses - these have to be modified later when FLASH size * has been determined */ #if defined(CFG_BR0_PRELIM) \ && defined(CFG_OR0_PRELIM) \ && defined(CFG_LBLAWBAR0_PRELIM) \ && defined(CFG_LBLAWAR0_PRELIM) im->lbus.bank[0].br = CFG_BR0_PRELIM; im->lbus.bank[0].or = CFG_OR0_PRELIM; im->sysconf.lblaw[0].bar = CFG_LBLAWBAR0_PRELIM; im->sysconf.lblaw[0].ar = CFG_LBLAWAR0_PRELIM; #else #error CFG_BR0_PRELIM, CFG_OR0_PRELIM, CFG_LBLAWBAR0_PRELIM & CFG_LBLAWAR0_PRELIM must be defined #endif #if defined(CFG_BR1_PRELIM) && defined(CFG_OR1_PRELIM) im->lbus.bank[1].br = CFG_BR1_PRELIM; im->lbus.bank[1].or = CFG_OR1_PRELIM; #endif #if defined(CFG_LBLAWBAR1_PRELIM) && defined(CFG_LBLAWAR1_PRELIM) im->sysconf.lblaw[1].bar = CFG_LBLAWBAR1_PRELIM; im->sysconf.lblaw[1].ar = CFG_LBLAWAR1_PRELIM; #endif #if defined(CFG_BR2_PRELIM) && defined(CFG_OR2_PRELIM) im->lbus.bank[2].br = CFG_BR2_PRELIM; im->lbus.bank[2].or = CFG_OR2_PRELIM; #endif #if defined(CFG_LBLAWBAR2_PRELIM) && defined(CFG_LBLAWAR2_PRELIM) im->sysconf.lblaw[2].bar = CFG_LBLAWBAR2_PRELIM; im->sysconf.lblaw[2].ar = CFG_LBLAWAR2_PRELIM; #endif #if defined(CFG_BR3_PRELIM) && defined(CFG_OR3_PRELIM) im->lbus.bank[3].br = CFG_BR3_PRELIM; im->lbus.bank[3].or = CFG_OR3_PRELIM; #endif #if defined(CFG_LBLAWBAR3_PRELIM) && defined(CFG_LBLAWAR3_PRELIM) im->sysconf.lblaw[3].bar = CFG_LBLAWBAR3_PRELIM; im->sysconf.lblaw[3].ar = CFG_LBLAWAR3_PRELIM; #endif #if defined(CFG_BR4_PRELIM) && defined(CFG_OR4_PRELIM) im->lbus.bank[4].br = CFG_BR4_PRELIM; im->lbus.bank[4].or = CFG_OR4_PRELIM; #endif #if defined(CFG_LBLAWBAR4_PRELIM) && defined(CFG_LBLAWAR4_PRELIM) im->sysconf.lblaw[4].bar = CFG_LBLAWBAR4_PRELIM; im->sysconf.lblaw[4].ar = CFG_LBLAWAR4_PRELIM; #endif #if defined(CFG_BR5_PRELIM) && defined(CFG_OR5_PRELIM) im->lbus.bank[5].br = CFG_BR5_PRELIM; im->lbus.bank[5].or = CFG_OR5_PRELIM; #endif #if defined(CFG_LBLAWBAR5_PRELIM) && defined(CFG_LBLAWAR5_PRELIM) im->sysconf.lblaw[5].bar = CFG_LBLAWBAR5_PRELIM; im->sysconf.lblaw[5].ar = CFG_LBLAWAR5_PRELIM; #endif #if defined(CFG_BR6_PRELIM) && defined(CFG_OR6_PRELIM) im->lbus.bank[6].br = CFG_BR6_PRELIM; im->lbus.bank[6].or = CFG_OR6_PRELIM; #endif #if defined(CFG_LBLAWBAR6_PRELIM) && defined(CFG_LBLAWAR6_PRELIM) im->sysconf.lblaw[6].bar = CFG_LBLAWBAR6_PRELIM; im->sysconf.lblaw[6].ar = CFG_LBLAWAR6_PRELIM; #endif #if defined(CFG_BR7_PRELIM) && defined(CFG_OR7_PRELIM) im->lbus.bank[7].br = CFG_BR7_PRELIM; im->lbus.bank[7].or = CFG_OR7_PRELIM; #endif #if defined(CFG_LBLAWBAR7_PRELIM) && defined(CFG_LBLAWAR7_PRELIM) im->sysconf.lblaw[7].bar = CFG_LBLAWBAR7_PRELIM; im->sysconf.lblaw[7].ar = CFG_LBLAWAR7_PRELIM; #endif #ifdef CFG_GPIO1_PRELIM im->pgio[0].dir = CFG_GPIO1_DIR; im->pgio[0].dat = CFG_GPIO1_DAT; #endif #ifdef CFG_GPIO2_PRELIM im->pgio[1].dir = CFG_GPIO2_DIR; im->pgio[1].dat = CFG_GPIO2_DAT; #endif } /* * Initialize higher level parts of CPU like time base and timers. */ int cpu_init_r (void) { return 0; }