/* * (C) Copyright 2001 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include "w7o.h" #include #include "vpd.h" #include "errors.h" #include 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); }