diff options
author | wdenk <wdenk> | 2002-11-03 01:41:26 (GMT) |
---|---|---|
committer | wdenk <wdenk> | 2002-11-03 01:41:26 (GMT) |
commit | afd7f3d0de7be71ee90478d4dde00dc1a8f9d204 (patch) | |
tree | be7d638bea029fb086b90b6ed4f2f32277524ace /board/gw8260/gw8260.c | |
parent | f18f47f4d40689d85829f6ea18642abacd45ad0e (diff) | |
download | u-boot-afd7f3d0de7be71ee90478d4dde00dc1a8f9d204.tar.xz |
Initial revision
Diffstat (limited to 'board/gw8260/gw8260.c')
-rw-r--r-- | board/gw8260/gw8260.c | 659 |
1 files changed, 659 insertions, 0 deletions
diff --git a/board/gw8260/gw8260.c b/board/gw8260/gw8260.c new file mode 100644 index 0000000..7ca1989 --- /dev/null +++ b/board/gw8260/gw8260.c @@ -0,0 +1,659 @@ +/* + * (C) Copyright 2000 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2001 + * Advent Networks, Inc. <http://www.adventnetworks.com> + * Jay Monkman <jtm@smoothsmoothie.com> + * + * (C) Copyright 2001 + * Advent Networks, Inc. <http://www.adventnetworks.com> + * Oliver Brown <oliverb@alumni.utexas.net> + * + * 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 + */ + +/*********************************************************************/ +/* DESCRIPTION: + * This file contains the board routines for the GW8260 board. + * + * MODULE DEPENDENCY: + * None + * + * RESTRICTIONS/LIMITATIONS: + * None + * + * Copyright (c) 2001, Advent Networks, Inc. + */ +/*********************************************************************/ + +#include <common.h> +#include <ioports.h> +#include <mpc8260.h> + +/* + * I/O Port configuration table + * + */ +const iop_conf_t iop_conf_tab[4][32] = { + + /* Port A configuration */ + { /* conf ppar psor pdir podr pdat */ + /* PA31 */ { 1, 0, 0, 1, 0, 0 }, /* TP14 */ + /* PA30 */ { 1, 1, 1, 1, 0, 0 }, /* US_RTS */ + /* PA29 */ { 1, 0, 0, 1, 0, 1 }, /* LSSI_DATA */ + /* PA28 */ { 1, 0, 0, 1, 0, 1 }, /* LSSI_CLK */ + /* PA27 */ { 1, 0, 0, 1, 0, 0 }, /* TP12 */ + /* PA26 */ { 1, 0, 0, 0, 0, 0 }, /* IO_STATUS */ + /* PA25 */ { 1, 0, 0, 0, 0, 0 }, /* IO_CLOCK */ + /* PA24 */ { 1, 0, 0, 0, 0, 0 }, /* IO_CONFIG */ + /* PA23 */ { 1, 0, 0, 0, 0, 0 }, /* IO_DONE */ + /* PA22 */ { 1, 0, 0, 0, 0, 0 }, /* IO_DATA */ + /* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* US_TXD3 */ + /* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* US_TXD2 */ + /* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* US_TXD1 */ + /* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* US_TXD0 */ + /* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* DS_RXD0 */ + /* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* DS_RXD1 */ + /* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* DS_RXD2 */ + /* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* DS_RXD3 */ + /* PA13 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE7 */ + /* PA12 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE6 */ + /* PA11 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE5 */ + /* PA10 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE4 */ + /* PA9 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE3 */ + /* PA8 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE2 */ + /* PA7 */ { 1, 0, 0, 0, 0, 0 }, /* LSSI_IN */ + /* PA6 */ { 1, 0, 0, 1, 0, 0 }, /* SPARE0 */ + /* PA5 */ { 1, 0, 0, 1, 0, 0 }, /* DEMOD_RESET_ */ + /* PA4 */ { 1, 0, 0, 1, 0, 0 }, /* MOD_RESET_ */ + /* PA3 */ { 1, 0, 0, 1, 0, 0 }, /* IO_RESET */ + /* PA2 */ { 1, 0, 0, 1, 0, 0 }, /* TX_ENABLE */ + /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* RX_LOCK */ + /* PA0 */ { 1, 0, 0, 1, 0, 1 } /* MPC_RESET_ */ + }, + + /* Port B configuration */ + { /* conf ppar psor pdir podr pdat */ + /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TX_ER */ + /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RX_DV */ + /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FETH0_TX_EN */ + /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RX_ER */ + /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_COL */ + /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_CRS */ + /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TXD3 */ + /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TXD2 */ + /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TXD1 */ + /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FETH0_TXD0 */ + /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RXD0 */ + /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RXD1 */ + /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RXD2 */ + /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RXD3 */ + /* PB17 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RX_DV */ + /* PB16 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RX_ER */ + /* PB15 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TX_ER */ + /* PB14 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TX_EN */ + /* PB13 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_COL */ + /* PB12 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_CRS */ + /* PB11 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RXD3 */ + /* PB10 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RXD2 */ + /* PB9 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RXD1 */ + /* PB8 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RXD0 */ + /* PB7 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TXD0 */ + /* PB6 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TXD1 */ + /* PB5 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TXD2 */ + /* PB4 */ { 1, 1, 0, 1, 0, 0 }, /* FETH1_TXD3 */ + /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ + }, + + /* Port C */ + { /* conf ppar psor pdir podr pdat */ + /* PC31 */ { 1, 0, 0, 1, 0, 1 }, /* FAST_RESET_ */ + /* PC30 */ { 1, 0, 0, 1, 0, 1 }, /* FAST_PAUSE_ */ + /* PC29 */ { 1, 0, 0, 1, 0, 0 }, /* FAST_SLEW1 */ + /* PC28 */ { 1, 0, 0, 1, 0, 0 }, /* FAST_SLEW0 */ + /* PC27 */ { 1, 0, 0, 1, 0, 0 }, /* TP13 */ + /* PC26 */ { 1, 0, 0, 0, 0, 0 }, /* RXDECDFLG */ + /* PC25 */ { 1, 0, 0, 0, 0, 0 }, /* RXACQFAIL */ + /* PC24 */ { 1, 0, 0, 0, 0, 0 }, /* RXACQFLG */ + /* PC23 */ { 1, 0, 0, 1, 0, 0 }, /* WD_TCL */ + /* PC22 */ { 1, 0, 0, 1, 0, 0 }, /* WD_EN */ + /* PC21 */ { 1, 0, 0, 1, 0, 0 }, /* US_TXCLK */ + /* PC20 */ { 1, 0, 0, 0, 0, 0 }, /* DS_RXCLK */ + /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_RX_CLK */ + /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FETH0_TX_CLK */ + /* PC17 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_RX_CLK */ + /* PC16 */ { 1, 1, 0, 0, 0, 0 }, /* FETH1_TX_CLK */ + /* PC15 */ { 1, 0, 0, 1, 0, 0 }, /* TX_SHUTDOWN_ */ + /* PC14 */ { 1, 0, 0, 0, 0, 0 }, /* RS_232_DTR_ */ + /* PC13 */ { 1, 0, 0, 0, 0, 0 }, /* TXERR */ + /* PC12 */ { 1, 0, 0, 1, 0, 1 }, /* FETH1_MDDIS */ + /* PC11 */ { 1, 0, 0, 1, 0, 1 }, /* FETH0_MDDIS */ + /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* MDC */ + /* PC9 */ { 1, 0, 0, 1, 1, 1 }, /* MDIO */ + /* PC8 */ { 1, 0, 0, 1, 1, 1 }, /* SER_NUM */ + /* PC7 */ { 1, 1, 0, 0, 0, 0 }, /* US_CTS */ + /* PC6 */ { 1, 1, 0, 0, 0, 0 }, /* DS_CD_ */ + /* PC5 */ { 1, 0, 0, 1, 0, 0 }, /* FETH1_PWRDWN */ + /* PC4 */ { 1, 0, 0, 1, 0, 0 }, /* FETH0_PWRDWN */ + /* PC3 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED3 */ + /* PC2 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED2 */ + /* PC1 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED1 */ + /* PC0 */ { 1, 0, 0, 1, 0, 1 }, /* MPULED0 */ + }, + + /* Port D */ + { /* conf ppar psor pdir podr pdat */ + /* PD31 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD30 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD29 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD28 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD27 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD26 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD25 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD24 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD23 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD22 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD21 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD20 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD19 */ { 1, 1, 1, 0, 0, 0 }, /* not used */ + /* PD18 */ { 1, 1, 1, 0, 0, 0 }, /* not used */ + /* PD17 */ { 1, 1, 1, 0, 0, 0 }, /* not used */ + /* PD16 */ { 1, 1, 1, 0, 0, 0 }, /* not used */ + /* PD15 */ { 1, 1, 1, 0, 1, 1 }, /* SDRAM_SDA */ + /* PD14 */ { 1, 1, 1, 0, 1, 1 }, /* SDRAM_SCL */ + /* PD13 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED7 */ + /* PD12 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED6 */ + /* PD11 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED5 */ + /* PD10 */ { 1, 0, 0, 1, 0, 0 }, /* MPULED4 */ + /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* RS232_TXD */ + /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* RD232_RXD */ + /* PD7 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD6 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD5 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD4 */ { 1, 0, 0, 0, 0, 0 }, /* not used */ + /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ + } +}; + +/*********************************************************************/ +/* NAME: checkboard() - Displays the board type and serial number */ +/* */ +/* OUTPUTS: */ +/* Displays the board type and serial number */ +/* */ +/* RETURNS: */ +/* Always returns 1 */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* */ +/* */ +/*********************************************************************/ +int checkboard(void) +{ + char *str; + puts ("Board: Advent Networks gw8260\n"); + + str = getenv("serial#"); + if (str != NULL) { + printf("SN: %s\n", str); + } + return 0; +} + + +#if defined (CFG_DRAM_TEST) +/*********************************************************************/ +/* NAME: move64() - moves a double word (64-bit) */ +/* */ +/* DESCRIPTION: */ +/* this function performs a double word move from the data at */ +/* the source pointer to the location at the destination pointer. */ +/* */ +/* INPUTS: */ +/* unsigned long long *src - pointer to data to move */ +/* */ +/* OUTPUTS: */ +/* unsigned long long *dest - pointer to locate to move data */ +/* */ +/* RETURNS: */ +/* None */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* May cloober fr0. */ +/* */ +/*********************************************************************/ +static void move64(unsigned long long *src, unsigned long long *dest) +{ + asm ("lfd 0, 0(3)\n\t" /* fpr0 = *scr */ + "stfd 0, 0(4)" /* *dest = fpr0 */ + : : : "fr0" ); /* Clobbers fr0 */ + return; +} + + +#if defined (CFG_DRAM_TEST_DATA) + +unsigned long long pattern[]= { + 0xaaaaaaaaaaaaaaaa, + 0xcccccccccccccccc, + 0xf0f0f0f0f0f0f0f0, + 0xff00ff00ff00ff00, + 0xffff0000ffff0000, + 0xffffffff00000000, + 0x00000000ffffffff, + 0x0000ffff0000ffff, + 0x00ff00ff00ff00ff, + 0x0f0f0f0f0f0f0f0f, + 0x3333333333333333, + 0x5555555555555555}; + +/*********************************************************************/ +/* NAME: mem_test_data() - test data lines for shorts and opens */ +/* */ +/* DESCRIPTION: */ +/* Tests data lines for shorts and opens by forcing adjacent data */ +/* to opposite states. Because the data lines could be routed in */ +/* an arbitrary manner the must ensure test patterns ensure that */ +/* every case is tested. By using the following series of binary */ +/* patterns every combination of adjacent bits is test regardless */ +/* of routing. */ +/* */ +/* ...101010101010101010101010 */ +/* ...110011001100110011001100 */ +/* ...111100001111000011110000 */ +/* ...111111110000000011111111 */ +/* */ +/* Carrying this out, gives us six hex patterns as follows: */ +/* */ +/* 0xaaaaaaaaaaaaaaaa */ +/* 0xcccccccccccccccc */ +/* 0xf0f0f0f0f0f0f0f0 */ +/* 0xff00ff00ff00ff00 */ +/* 0xffff0000ffff0000 */ +/* 0xffffffff00000000 */ +/* */ +/* The number test patterns will always be given by: */ +/* */ +/* log(base 2)(number data bits) = log2 (64) = 6 */ +/* */ +/* To test for short and opens to other signals on our boards. we */ +/* simply */ +/* test with the 1's complemnt of the paterns as well. */ +/* */ +/* OUTPUTS: */ +/* Displays failing test pattern */ +/* */ +/* RETURNS: */ +/* 0 - Passed test */ +/* 1 - Failed test */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* Assumes only one one SDRAM bank */ +/* */ +/*********************************************************************/ +int mem_test_data(void) +{ + unsigned long long * pmem = + (unsigned long long *)CFG_SDRAM_BASE ; + unsigned long long temp64; + int num_patterns = sizeof(pattern)/ sizeof(pattern[0]); + int i; + unsigned int hi, lo; + + for ( i = 0; i < num_patterns; i++) { + move64(&(pattern[i]), pmem); + move64(pmem, &temp64); + + /* hi = (temp64>>32) & 0xffffffff; */ + /* lo = temp64 & 0xffffffff; */ + /* printf("\ntemp64 = 0x%08x%08x", hi, lo); */ + + hi = (pattern[i]>>32) & 0xffffffff; + lo = pattern[i] & 0xffffffff; + /* printf("\npattern[%d] = 0x%08x%08x", i, hi, lo); */ + + if (temp64 != pattern[i]){ + printf ("\n Data Test Failed, pattern 0x%08x%08x", hi, lo); + return 1; + } + } + + return 0; +} +#endif /* CFG_DRAM_TEST_DATA */ + +#if defined (CFG_DRAM_TEST_ADDRESS) +/*********************************************************************/ +/* NAME: mem_test_address() - test address lines */ +/* */ +/* DESCRIPTION: */ +/* This function performs a test to verify that each word im */ +/* memory is uniquly addressable. The test sequence is as follows: */ +/* */ +/* 1) write the address of each word to each word. */ +/* 2) verify that each location equals its address */ +/* */ +/* OUTPUTS: */ +/* Displays failing test pattern and address */ +/* */ +/* RETURNS: */ +/* 0 - Passed test */ +/* 1 - Failed test */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* */ +/* */ +/*********************************************************************/ +int mem_test_address(void) +{ + volatile unsigned int * pmem = (volatile unsigned int *)CFG_SDRAM_BASE ; + const unsigned int size = (CFG_SDRAM_SIZE * 1024 * 1024)/4; + unsigned int i; + + /* write address to each location */ + for ( i = 0; i < size; i++) { + pmem[i] = i; + } + + /* verify each loaction */ + for ( i = 0; i < size; i++) { + if (pmem[i] != i) { + printf("\n Address Test Failed at 0x%x", i); + return 1; + } + } + return 0; +} +#endif /* CFG_DRAM_TEST_ADDRESS */ + +#if defined (CFG_DRAM_TEST_WALK) +/*********************************************************************/ +/* NAME: mem_march() - memory march */ +/* */ +/* DESCRIPTION: */ +/* Marches up through memory. At each location verifies rmask if */ +/* read = 1. At each location write wmask if write = 1. Displays */ +/* failing address and pattern. */ +/* */ +/* INPUTS: */ +/* volatile unsigned long long * base - start address of test */ +/* unsigned int size - number of dwords(64-bit) to test */ +/* unsigned long long rmask - read verify mask */ +/* unsigned long long wmask - wrtie verify mask */ +/* short read - verifies rmask if read = 1 */ +/* short write - writes wmask if write = 1 */ +/* */ +/* OUTPUTS: */ +/* Displays failing test pattern and address */ +/* */ +/* RETURNS: */ +/* 0 - Passed test */ +/* 1 - Failed test */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* */ +/* */ +/*********************************************************************/ +int mem_march(volatile unsigned long long * base, + unsigned int size, + unsigned long long rmask, + unsigned long long wmask, + short read, + short write) +{ + unsigned int i; + unsigned long long temp; + unsigned int hitemp, lotemp, himask, lomask; + + for (i = 0 ; i < size ; i++) { + if (read != 0) { + /* temp = base[i]; */ + move64 ((unsigned long long *)&(base[i]), &temp); + if (rmask != temp) { + hitemp = (temp>>32) & 0xffffffff; + lotemp = temp & 0xffffffff; + himask = (rmask>>32) & 0xffffffff; + lomask = rmask & 0xffffffff; + + printf("\n Walking one's test failed: address = 0x%08x," + "\n\texpected 0x%08x%08x, found 0x%08x%08x", + i<<3, himask, lomask, hitemp, lotemp); + return 1; + } + } + if ( write != 0 ) { + /* base[i] = wmask; */ + move64 (&wmask, (unsigned long long *)&(base[i])); + } + } + return 0; +} +#endif /* CFG_DRAM_TEST_WALK */ + +/*********************************************************************/ +/* NAME: mem_test_walk() - a simple walking ones test */ +/* */ +/* DESCRIPTION: */ +/* Performs a walking ones through entire physical memory. The */ +/* test uses as series of memory marches, mem_march(), to verify */ +/* and write the test patterns to memory. The test sequence is as */ +/* follows: */ +/* 1) march writing 0000...0001 */ +/* 2) march verifying 0000...0001 , writing 0000...0010 */ +/* 3) repeat step 2 shifting masks left 1 bit each time unitl */ +/* the write mask equals 1000...0000 */ +/* 4) march verifying 1000...0000 */ +/* The test fails if any of the memory marches return a failure. */ +/* */ +/* OUTPUTS: */ +/* Displays which pass on the memory test is executing */ +/* */ +/* RETURNS: */ +/* 0 - Passed test */ +/* 1 - Failed test */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* */ +/* */ +/*********************************************************************/ +int mem_test_walk(void) +{ + unsigned long long mask; + volatile unsigned long long * pmem = + (volatile unsigned long long *)CFG_SDRAM_BASE ; + const unsigned long size = (CFG_SDRAM_SIZE * 1024 * 1024)/8; + + unsigned int i; + mask = 0x01; + + printf("Initial Pass"); + mem_march(pmem,size,0x0,0x1,0,1); + + printf("\b\b\b\b\b\b\b\b\b\b\b\b"); + printf(" "); + printf("\b\b\b\b\b\b\b\b\b\b\b\b"); + + for (i = 0 ; i < 63 ; i++) { + printf("Pass %2d", i+2); + if ( mem_march(pmem,size, mask,mask << 1, 1, 1) != 0 ){ + /*printf("mask: 0x%x, pass: %d, ", mask, i);*/ + return 1; + } + mask = mask<<1; + printf("\b\b\b\b\b\b\b"); + } + + printf("Last Pass"); + if (mem_march(pmem, size, 0, mask, 0, 1) != 0) { + /* printf("mask: 0x%x", mask); */ + return 1; + } + printf("\b\b\b\b\b\b\b\b\b"); + printf(" "); + printf("\b\b\b\b\b\b\b\b\b"); + + return 0; +} + +/*********************************************************************/ +/* NAME: testdram() - calls any enabled memory tests */ +/* */ +/* DESCRIPTION: */ +/* Runs memory tests if the environment test variables are set to */ +/* 'y'. */ +/* */ +/* INPUTS: */ +/* testdramdata - If set to 'y', data test is run. */ +/* testdramaddress - If set to 'y', address test is run. */ +/* testdramwalk - If set to 'y', walking ones test is run */ +/* */ +/* OUTPUTS: */ +/* None */ +/* */ +/* RETURNS: */ +/* 0 - Passed test */ +/* 1 - Failed test */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* */ +/* */ +/*********************************************************************/ +int testdram(void) +{ + char *s; + int rundata, runaddress, runwalk; + + s = getenv ("testdramdata"); + rundata = (s && (*s == 'y')) ? 1 : 0; + s = getenv ("testdramaddress"); + runaddress = (s && (*s == 'y')) ? 1 : 0; + s = getenv ("testdramwalk"); + runwalk = (s && (*s == 'y')) ? 1 : 0; + + if ((rundata == 1) || (runaddress == 1) || (runwalk == 1)) { + printf("Testing RAM ... "); + } +#ifdef CFG_DRAM_TEST_DATA + if (rundata == 1) { + if (mem_test_data() == 1){ + return 1; + } + } +#endif +#ifdef CFG_DRAM_TEST_ADDRESS + if (runaddress == 1) { + if (mem_test_address() == 1){ + return 1; + } + } +#endif +#ifdef CFG_DRAM_TEST_WALK + if (runwalk == 1) { + if (mem_test_walk() == 1){ + return 1; + } + } +#endif + if ((rundata == 1) || (runaddress == 1) || (runwalk == 1)) { + printf("passed"); + } + return 0; + +} +#endif /* CFG_DRAM_TEST */ + +/*********************************************************************/ +/* NAME: initdram() - initializes SDRAM controller */ +/* */ +/* DESCRIPTION: */ +/* Initializes the MPC8260's SDRAM controller. */ +/* */ +/* INPUTS: */ +/* CFG_IMMR - MPC8260 Internal memory map */ +/* CFG_SDRAM_BASE - Physical start address of SDRAM */ +/* CFG_PSDMR - SDRAM mode register */ +/* CFG_MPTPR - Memory refresh timer prescaler register */ +/* CFG_SDRAM0_SIZE - SDRAM size */ +/* */ +/* RETURNS: */ +/* SDRAM size in bytes */ +/* */ +/* RESTRICTIONS/LIMITATIONS: */ +/* */ +/* */ +/*********************************************************************/ +long int initdram(int board_type) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile memctl8260_t *memctl = &immap->im_memctl; + volatile uchar c = 0, *ramaddr = (uchar *)(CFG_SDRAM_BASE + 0x8); + ulong psdmr = CFG_PSDMR; + int i; + + /* + * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35): + * + * "At system reset, initialization software must set up the + * programmable parameters in the memory controller banks registers + * (ORx, BRx, P/LSDMR). After all memory parameters are configured, + * system software should execute the following initialization sequence + * for each SDRAM device. + * + * 1. Issue a PRECHARGE-ALL-BANKS command + * 2. Issue eight CBR REFRESH commands + * 3. Issue a MODE-SET command to initialize the mode register + * + * The initial commands are executed by setting P/LSDMR[OP] and + * accessing the SDRAM with a single-byte transaction." + * + * The appropriate BRx/ORx registers have already been set when we + * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE. + */ + + memctl->memc_psrt = CFG_PSRT; + memctl->memc_mptpr = CFG_MPTPR; + + memctl->memc_psdmr = psdmr | PSDMR_OP_PREA; + *ramaddr = c; + + memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR; + for (i = 0; i < 8; i++){ + *ramaddr = c; + } + memctl->memc_psdmr = psdmr | PSDMR_OP_MRW; + *ramaddr = c; + + memctl->memc_psdmr = psdmr | PSDMR_OP_NORM | PSDMR_RFEN; + *ramaddr = c; + + /* return total ram size */ + return (CFG_SDRAM0_SIZE * 1024 * 1024); +} + +/*********************************************************************/ +/* End of gw8260.c */ +/*********************************************************************/ |