/* * Copyright (C) 2004-2007 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 */ #include #include #include DECLARE_GLOBAL_DATA_PTR; #ifdef CONFIG_QE extern qe_iop_conf_t qe_iop_conf_tab[]; extern void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign); extern void qe_init(uint qe_base); extern void qe_reset(void); static void config_qe_ioports(void) { u8 port, pin; int dir, open_drain, assign; int i; for (i = 0; qe_iop_conf_tab[i].assign != QE_IOP_TAB_END; i++) { port = qe_iop_conf_tab[i].port; pin = qe_iop_conf_tab[i].pin; dir = qe_iop_conf_tab[i].dir; open_drain = qe_iop_conf_tab[i].open_drain; assign = qe_iop_conf_tab[i].assign; qe_config_iopin(port, pin, dir, open_drain, assign); } } #endif /* * 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) | (CFG_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT); #endif #ifdef CFG_SPCR_TSECEP /* eTSEC Emergency priority */ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSECEP) | (CFG_SPCR_TSECEP << SPCR_TSECEP_SHIFT); #endif #ifdef CFG_SPCR_TSEC1EP /* TSEC1 Emergency priority */ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC1EP) | (CFG_SPCR_TSEC1EP << SPCR_TSEC1EP_SHIFT); #endif #ifdef CFG_SPCR_TSEC2EP /* TSEC2 Emergency priority */ im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (CFG_SPCR_TSEC2EP << SPCR_TSEC2EP_SHIFT); #endif #ifdef CFG_SCCR_TSEC1CM /* TSEC1 clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (CFG_SCCR_TSEC1CM << SCCR_TSEC1CM_SHIFT); #endif #ifdef CFG_SCCR_TSEC2CM /* TSEC2 & I2C1 clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (CFG_SCCR_TSEC2CM << SCCR_TSEC2CM_SHIFT); #endif #ifdef CFG_SCCR_TSEC1ON /* TSEC1 clock switch */ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1ON) | (CFG_SCCR_TSEC1ON << SCCR_TSEC1ON_SHIFT); #endif #ifdef CFG_SCCR_TSEC2ON /* TSEC2 clock switch */ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2ON) | (CFG_SCCR_TSEC2ON << SCCR_TSEC2ON_SHIFT); #endif #ifdef CFG_SCCR_USBMPHCM /* USB MPH clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_USBMPHCM) | (CFG_SCCR_USBMPHCM << SCCR_USBMPHCM_SHIFT); #endif #ifdef CFG_SCCR_PCICM /* PCI & DMA clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_PCICM) | (CFG_SCCR_PCICM << SCCR_PCICM_SHIFT); #endif #ifdef CFG_SCCR_USBDRCM /* USB DR clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_USBDRCM) | (CFG_SCCR_USBDRCM << SCCR_USBDRCM_SHIFT); #endif #ifdef CFG_SCCR_ENCCM /* Encryption clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_ENCCM) | (CFG_SCCR_ENCCM << SCCR_PCICM_SHIFT); #endif #ifdef CFG_ACR_RPTCNT /* Arbiter repeat count */ im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) | (CFG_ACR_RPTCNT << 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 /* DDR control driver register */ #ifdef CFG_DDRCDR im->sysconf.ddrcdr = CFG_DDRCDR; #endif /* Output buffer impedance register */ #ifdef CFG_OBIR im->sysconf.obir = CFG_OBIR; #endif #ifdef CONFIG_QE /* Config QE ioports */ config_qe_ioports(); #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->gpio[0].dir = CFG_GPIO1_DIR; im->gpio[0].dat = CFG_GPIO1_DAT; #endif #ifdef CFG_GPIO2_PRELIM im->gpio[1].dir = CFG_GPIO2_DIR; im->gpio[1].dat = CFG_GPIO2_DAT; #endif } int cpu_init_r (void) { #ifdef CONFIG_QE uint qe_base = CFG_IMMR + 0x00100000; /* QE immr base */ qe_init(qe_base); qe_reset(); #endif return 0; } /* * Figure out the cause of the reset */ int prt_83xx_rsr(void) { static struct { ulong mask; char *desc; } bits[] = { { RSR_SWSR, "Software Soft"}, { RSR_SWHR, "Software Hard"}, { RSR_JSRS, "JTAG Soft"}, { RSR_CSHR, "Check Stop"}, { RSR_SWRS, "Software Watchdog"}, { RSR_BMRS, "Bus Monitor"}, { RSR_SRS, "External/Internal Soft"}, { RSR_HRS, "External/Internal Hard"} }; static int n = sizeof bits / sizeof bits[0]; ulong rsr = gd->reset_status; int i; char *sep; puts("Reset Status:"); sep = " "; for (i = 0; i < n; i++) if (rsr & bits[i].mask) { printf("%s%s", sep, bits[i].desc); sep = ", "; } puts("\n\n"); return 0; }