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u-boot-brain/cpu/mpc83xx/cpu_init.c
Nick Spence 46497056ae mpc83xx: Store and display Arbiter Event Register values 
Record the Arbiter Event Register values and optionally display them.

The Arbiter Event Register can record the type and effective address of
an arbiter error, even through an HRESET. This patch stores the values in
the global data structure.

Display of the Arbiter Event registers immediately after the RSR value
can be enabled with defines. The Arbiter values will only be displayed
if an arbiter event has occured since the last Power On Reset, and either
of the following defines exist:
 #define CONFIG_DISPLAY_AER_BRIEF - display only the arbiter address and
                                    and type register values
 #define CONFIG_DISPLAY_AER_FULL  - display and interpret the arbiter
                                    event register values

Address Only transactions are one of the trapped events that can register
as an arbiter event. They occur with some cache manipulation instructions
if the HID0_ABE (Address Broadcast Enable) is set and the memory region
has the MEMORY_COHERENCE WIMG bit set. Setting:
 #define CONFIG_MASK_AER_AO - prevents the arbiter from recording address
                              only events, so that it can still capture
                              other real problems.

Signed-off-by: Nick Spence <nick.spence@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2008-09-03 16:06:57 -05:00

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/*
* 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 <common.h>
#include <mpc83xx.h>
#include <ioports.h>
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_ACR_RPTCNT
/* Arbiter repeat count */
im->arbiter.acr = (im->arbiter.acr & ~(ACR_RPTCNT)) |
(CFG_ACR_RPTCNT << ACR_RPTCNT_SHIFT);
#endif
#ifdef CFG_SPCR_OPT
/* Optimize transactions between CSB and other devices */
im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_OPT) |
(CFG_SPCR_OPT << SPCR_OPT_SHIFT);
#endif
#ifdef CFG_SPCR_TSECEP
/* all eTSEC's 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_ENCCM
/* Encryption clock mode */
im->clk.sccr = (im->clk.sccr & ~SCCR_ENCCM) |
(CFG_SCCR_ENCCM << SCCR_PCICM_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_TSECCM
/* all TSEC's clock mode */
im->clk.sccr = (im->clk.sccr & ~SCCR_TSECCM) |
(CFG_SCCR_TSECCM << SCCR_TSECCM_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 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_USBDRCM
/* USB DR clock mode */
im->clk.sccr = (im->clk.sccr & ~SCCR_USBDRCM) |
(CFG_SCCR_USBDRCM << SCCR_USBDRCM_SHIFT);
#endif
#ifdef CFG_SCCR_SATACM
/* SATA controller clock mode */
im->clk.sccr = (im->clk.sccr & ~SCCR_SATACM) |
(CFG_SCCR_SATACM << SCCR_SATACM_SHIFT);
#endif
/* RSR - Reset Status Register - clear all status (4.6.1.3) */
gd->reset_status = im->reset.rsr;
im->reset.rsr = ~(RSR_RES);
/* AER - Arbiter Event Register - store status */
gd->arbiter_event_attributes = im->arbiter.aeatr;
gd->arbiter_event_address = im->arbiter.aeadr;
/*
* RMR - Reset Mode Register
* contains checkstop reset enable (4.6.1.4)
*/
im->reset.rmr = (RMR_CSRE & (1<<RMR_CSRE_SHIFT));
/* LCRR - Clock Ratio Register (10.3.1.16) */
im->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
#if defined(CONFIG_MPC834X) || defined(CONFIG_MPC8313)
/* regarding to MPC34x manual rev.1 bits 28..29 must be preserved */
im->sysconf.sicrh = (im->sysconf.sicrh & 0x0000000C) | CFG_SICRH;
#else
im->sysconf.sicrh = CFG_SICRH;
#endif
#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].dat = CFG_GPIO1_DAT;
im->gpio[0].dir = CFG_GPIO1_DIR;
#endif
#ifdef CFG_GPIO2_PRELIM
im->gpio[1].dat = CFG_GPIO2_DAT;
im->gpio[1].dir = CFG_GPIO2_DIR;
#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;
}
/*
* Print out the bus arbiter event
*/
#if defined(CONFIG_DISPLAY_AER_FULL)
static int print_83xx_arb_event(int force)
{
static char* event[] = {
"Address Time Out",
"Data Time Out",
"Address Only Transfer Type",
"External Control Word Transfer Type",
"Reserved Transfer Type",
"Transfer Error",
"reserved",
"reserved"
};
static char* master[] = {
"e300 Core Data Transaction",
"reserved",
"e300 Core Instruction Fetch",
"reserved",
"TSEC1",
"TSEC2",
"USB MPH",
"USB DR",
"Encryption Core",
"I2C Boot Sequencer",
"JTAG",
"reserved",
"eSDHC",
"PCI1",
"PCI2",
"DMA",
"QUICC Engine 00",
"QUICC Engine 01",
"QUICC Engine 10",
"QUICC Engine 11",
"reserved",
"reserved",
"reserved",
"reserved",
"SATA1",
"SATA2",
"SATA3",
"SATA4",
"reserved",
"PCI Express 1",
"PCI Express 2",
"TDM-DMAC"
};
static char *transfer[] = {
"Address-only, Clean Block",
"Address-only, lwarx reservation set",
"Single-beat or Burst write",
"reserved",
"Address-only, Flush Block",
"reserved",
"Burst write",
"reserved",
"Address-only, sync",
"Address-only, tlbsync",
"Single-beat or Burst read",
"Single-beat or Burst read",
"Address-only, Kill Block",
"Address-only, icbi",
"Burst read",
"reserved",
"Address-only, eieio",
"reserved",
"Single-beat write",
"reserved",
"ecowx - Illegal single-beat write",
"reserved",
"reserved",
"reserved",
"Address-only, TLB Invalidate",
"reserved",
"Single-beat or Burst read",
"reserved",
"eciwx - Illegal single-beat read",
"reserved",
"Burst read",
"reserved"
};
int etype = (gd->arbiter_event_attributes & AEATR_EVENT)
>> AEATR_EVENT_SHIFT;
int mstr_id = (gd->arbiter_event_attributes & AEATR_MSTR_ID)
>> AEATR_MSTR_ID_SHIFT;
int tbst = (gd->arbiter_event_attributes & AEATR_TBST)
>> AEATR_TBST_SHIFT;
int tsize = (gd->arbiter_event_attributes & AEATR_TSIZE)
>> AEATR_TSIZE_SHIFT;
int ttype = (gd->arbiter_event_attributes & AEATR_TTYPE)
>> AEATR_TTYPE_SHIFT;
if (!force && !gd->arbiter_event_address)
return 0;
puts("Arbiter Event Status:\n");
printf(" Event Address: 0x%08lX\n", gd->arbiter_event_address);
printf(" Event Type: 0x%1x = %s\n", etype, event[etype]);
printf(" Master ID: 0x%02x = %s\n", mstr_id, master[mstr_id]);
printf(" Transfer Size: 0x%1x = %d bytes\n", (tbst<<3) | tsize,
tbst ? (tsize ? tsize : 8) : 16 + 8 * tsize);
printf(" Transfer Type: 0x%02x = %s\n", ttype, transfer[ttype]);
return gd->arbiter_event_address;
}
#elif defined(CONFIG_DISPLAY_AER_BRIEF)
static int print_83xx_arb_event(int force)
{
if (!force && !gd->arbiter_event_address)
return 0;
printf("Arbiter Event Status: AEATR=0x%08lX, AEADR=0x%08lX\n",
gd->arbiter_event_attributes, gd->arbiter_event_address);
return gd->arbiter_event_address;
}
#endif /* CONFIG_DISPLAY_AER_xxxx */
/*
* 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");
#if defined(CONFIG_DISPLAY_AER_FULL) || defined(CONFIG_DISPLAY_AER_BRIEF)
print_83xx_arb_event(rsr & RSR_BMRS);
#endif
puts("\n");
return 0;
}
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