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/*
* (C) Copyright 2001
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include "w7o.h"
#include <asm/processor.h>
#include "vpd.h"
#include "errors.h"
#include <watchdog.h>
unsigned long get_dram_size (void);
void sdram_init(void);
/* ------------------------------------------------------------------------- */
int board_early_init_f (void)
{
#if defined(CONFIG_W7OLMG)
/*
* Setup GPIO pins - reset devices.
*/
out32 (PPC405GP_GPIO0_ODR, 0x10000000); /* one open drain pin */
out32 (PPC405GP_GPIO0_OR, 0x3E000000); /* set output pins to default */
out32 (PPC405GP_GPIO0_TCR, 0x7f800000); /* setup for output */
/*
* IRQ 0-15 405GP internally generated; active high; level sensitive
* IRQ 16 405GP internally generated; active low; level sensitive
* IRQ 17-24 RESERVED
* IRQ 25 (EXT IRQ 0) XILINX; active low; level sensitive
* IRQ 26 (EXT IRQ 1) PCI INT A; active low; level sensitive
* IRQ 27 (EXT IRQ 2) PCI INT B; active low; level sensitive
* IRQ 28 (EXT IRQ 3) SAM 2; active low; level sensitive
* IRQ 29 (EXT IRQ 4) Battery Bad; active low; level sensitive
* IRQ 30 (EXT IRQ 5) Level One PHY; active low; level sensitive
* IRQ 31 (EXT IRQ 6) SAM 1; active high; level sensitive
*/
mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
mtdcr (UIC0ER, 0x00000000); /* disable all ints */
mtdcr (UIC0CR, 0x00000000); /* set all to be non-critical */
mtdcr (UIC0PR, 0xFFFFFF80); /* set int polarities */
mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */
mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,
INT0 highest priority */
mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
#elif defined(CONFIG_W7OLMC)
/*
* Setup GPIO pins
*/
out32 (PPC405GP_GPIO0_ODR, 0x01800000); /* XCV Done Open Drain */
out32 (PPC405GP_GPIO0_OR, 0x03800000); /* set out pins to default */
out32 (PPC405GP_GPIO0_TCR, 0x66C00000); /* setup for output */
/*
* IRQ 0-15 405GP internally generated; active high; level sensitive
* IRQ 16 405GP internally generated; active low; level sensitive
* IRQ 17-24 RESERVED
* IRQ 25 (EXT IRQ 0) DBE 0; active low; level sensitive
* IRQ 26 (EXT IRQ 1) DBE 1; active low; level sensitive
* IRQ 27 (EXT IRQ 2) DBE 2; active low; level sensitive
* IRQ 28 (EXT IRQ 3) DBE Common; active low; level sensitive
* IRQ 29 (EXT IRQ 4) PCI; active low; level sensitive
* IRQ 30 (EXT IRQ 5) RCMM Reset; active low; level sensitive
* IRQ 31 (EXT IRQ 6) PHY; active high; level sensitive
*/
mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
mtdcr (UIC0ER, 0x00000000); /* disable all ints */
mtdcr (UIC0CR, 0x00000000); /* set all to be non-critical */
mtdcr (UIC0PR, 0xFFFFFF80); /* set int polarities */
mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */
mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,
INT0 highest priority */
mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
#else /* Unknown */
# error "Unknown W7O board configuration"
#endif
WATCHDOG_RESET (); /* Reset the watchdog */
temp_uart_init (); /* init the uart for debug */
WATCHDOG_RESET (); /* Reset the watchdog */
test_led (); /* test the LEDs */
test_sdram (get_dram_size ()); /* test the dram */
log_stat (ERR_POST1); /* log status,post1 complete */
return 0;
}
/* ------------------------------------------------------------------------- */
/*
* Check Board Identity:
*/
int checkboard (void)
{
VPD vpd;
puts ("Board: ");
/* VPD data present in I2C EEPROM */
if (vpd_get_data (CONFIG_SYS_DEF_EEPROM_ADDR, &vpd) == 0) {
/*
* Known board type.
*/
if (vpd.productId[0] &&
((strncmp (vpd.productId, "GMM", 3) == 0) ||
(strncmp (vpd.productId, "CMM", 3) == 0))) {
/* Output board information on startup */
printf ("\"%s\", revision '%c', serial# %ld, manufacturer %u\n", vpd.productId, vpd.revisionId, vpd.serialNum, vpd.manuID);
return (0);
}
}
puts ("### Unknown HW ID - assuming NOTHING\n");
return (0);
}
/* ------------------------------------------------------------------------- */
phys_size_t initdram (int board_type)
{
/*
* ToDo: Move the asm init routine sdram_init() to this C file,
* or even better use some common ppc4xx code available
* in arch/powerpc/cpu/ppc4xx
*/
sdram_init();
return get_dram_size ();
}
unsigned long get_dram_size (void)
{
int tmp, i, regs[4];
int size = 0;
/* Get bank Size registers */
mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR); /* get bank 0 config reg */
regs[0] = mfdcr (SDRAM0_CFGDATA);
mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR); /* get bank 1 config reg */
regs[1] = mfdcr (SDRAM0_CFGDATA);
mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR); /* get bank 2 config reg */
regs[2] = mfdcr (SDRAM0_CFGDATA);
mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR); /* get bank 3 config reg */
regs[3] = mfdcr (SDRAM0_CFGDATA);
/* compute the size, add each bank if enabled */
for (i = 0; i < 4; i++) {
if (regs[i] & 0x0001) { /* if enabled, */
tmp = ((regs[i] >> (31 - 14)) & 0x7); /* get size bits */
tmp = 0x400000 << tmp; /* Size bits X 4MB = size */
size += tmp;
}
}
return size;
}
int misc_init_f (void)
{
return 0;
}
static void w7o_env_init (VPD * vpd)
{
/*
* Read VPD
*/
if (vpd_get_data (CONFIG_SYS_DEF_EEPROM_ADDR, vpd) != 0)
return;
/*
* Known board type.
*/
if (vpd->productId[0] &&
((strncmp (vpd->productId, "GMM", 3) == 0) ||
(strncmp (vpd->productId, "CMM", 3) == 0))) {
char buf[30];
char *eth;
char *serial = getenv ("serial#");
char *ethaddr = getenv ("ethaddr");
/* Set 'serial#' envvar if serial# isn't set */
if (!serial) {
sprintf (buf, "%s-%ld", vpd->productId,
vpd->serialNum);
setenv ("serial#", buf);
}
/* Set 'ethaddr' envvar if 'ethaddr' envvar is the default */
eth = (char *)(vpd->ethAddrs[0]);
if (ethaddr
&& (strcmp(ethaddr, __stringify(CONFIG_ETHADDR)) == 0)) {
/* Now setup ethaddr */
sprintf (buf, "%02x:%02x:%02x:%02x:%02x:%02x",
eth[0], eth[1], eth[2], eth[3], eth[4],
eth[5]);
setenv ("ethaddr", buf);
}
}
} /* w7o_env_init() */
int misc_init_r (void)
{
VPD vpd; /* VPD information */
#if defined(CONFIG_W7OLMG)
unsigned long greg; /* GPIO Register */
greg = in32 (PPC405GP_GPIO0_OR);
/*
* XXX - Unreset devices - this should be moved into VxWorks driver code
*/
greg |= 0x41800000L; /* SAM, PHY, Galileo */
out32 (PPC405GP_GPIO0_OR, greg); /* set output pins to default */
#endif /* CONFIG_W7OLMG */
/*
* Initialize W7O environment variables
*/
w7o_env_init (&vpd);
/*
* Initialize the FPGA(s).
*/
if (init_fpga () == 0)
test_fpga ((unsigned short *) CONFIG_FPGAS_BASE);
/* More POST testing. */
post2 ();
/* Done with hardware initialization and POST. */
log_stat (ERR_POSTOK);
/* Call silly, fail safe boot init routine */
init_fsboot ();
return (0);
}
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