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+/*
+ * (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 (CONFIG_SYS_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 (CONFIG_SYS_DRAM_TEST_DATA)
+
+unsigned long long pattern[] = {
+ 0xaaaaaaaaaaaaaaaaULL,
+ 0xccccccccccccccccULL,
+ 0xf0f0f0f0f0f0f0f0ULL,
+ 0xff00ff00ff00ff00ULL,
+ 0xffff0000ffff0000ULL,
+ 0xffffffff00000000ULL,
+ 0x00000000ffffffffULL,
+ 0x0000ffff0000ffffULL,
+ 0x00ff00ff00ff00ffULL,
+ 0x0f0f0f0f0f0f0f0fULL,
+ 0x3333333333333333ULL,
+ 0x5555555555555555ULL,
+};
+
+/*********************************************************************/
+/* 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 *) CONFIG_SYS_SDRAM_BASE;
+ unsigned long long temp64 = 0;
+ 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 /* CONFIG_SYS_DRAM_TEST_DATA */
+
+#if defined (CONFIG_SYS_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 *) CONFIG_SYS_SDRAM_BASE;
+ const unsigned int size = (CONFIG_SYS_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 /* CONFIG_SYS_DRAM_TEST_ADDRESS */
+
+#if defined (CONFIG_SYS_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 = 0;
+ 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 /* CONFIG_SYS_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 *) CONFIG_SYS_SDRAM_BASE;
+ const unsigned long size = (CONFIG_SYS_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 CONFIG_SYS_DRAM_TEST_DATA
+ if (rundata == 1) {
+ if (mem_test_data () == 1) {
+ return 1;
+ }
+ }
+#endif
+#ifdef CONFIG_SYS_DRAM_TEST_ADDRESS
+ if (runaddress == 1) {
+ if (mem_test_address () == 1) {
+ return 1;
+ }
+ }
+#endif
+#ifdef CONFIG_SYS_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 /* CONFIG_SYS_DRAM_TEST */
+
+/*********************************************************************/
+/* NAME: initdram() - initializes SDRAM controller */
+/* */
+/* DESCRIPTION: */
+/* Initializes the MPC8260's SDRAM controller. */
+/* */
+/* INPUTS: */
+/* CONFIG_SYS_IMMR - MPC8260 Internal memory map */
+/* CONFIG_SYS_SDRAM_BASE - Physical start address of SDRAM */
+/* CONFIG_SYS_PSDMR - SDRAM mode register */
+/* CONFIG_SYS_MPTPR - Memory refresh timer prescaler register */
+/* CONFIG_SYS_SDRAM0_SIZE - SDRAM size */
+/* */
+/* RETURNS: */
+/* SDRAM size in bytes */
+/* */
+/* RESTRICTIONS/LIMITATIONS: */
+/* */
+/* */
+/*********************************************************************/
+phys_size_t initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+ volatile memctl8260_t *memctl = &immap->im_memctl;
+ volatile uchar c = 0, *ramaddr = (uchar *) (CONFIG_SYS_SDRAM_BASE + 0x8);
+ ulong psdmr = CONFIG_SYS_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 CONFIG_SYS_SDRAM_BASE.
+ */
+
+ memctl->memc_psrt = CONFIG_SYS_PSRT;
+ memctl->memc_mptpr = CONFIG_SYS_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 (CONFIG_SYS_SDRAM0_SIZE * 1024 * 1024);
+}
+
+/*********************************************************************/
+/* End of gw8260.c */
+/*********************************************************************/
generated by cgit v1.1 at 2024-05-19 19:50:50 +0000