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-rw-r--r--board/mpc8360emds/mpc8360emds.c657
1 files changed, 657 insertions, 0 deletions
diff --git a/board/mpc8360emds/mpc8360emds.c b/board/mpc8360emds/mpc8360emds.c
new file mode 100644
index 000000000..ddc1047c6
--- /dev/null
+++ b/board/mpc8360emds/mpc8360emds.c
@@ -0,0 +1,657 @@
+/*
+ * Copyright (C) 2006 Freescale Semiconductor, Inc.
+ *
+ * Dave Liu <daveliu@freescale.com>
+ * based on board/mpc8349emds/mpc8349emds.c
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc83xx.h>
+#include <i2c.h>
+#include <spd.h>
+#include <miiphy.h>
+#include <command.h>
+#if defined(CONFIG_PCI)
+#include <pci.h>
+#endif
+#if defined(CONFIG_SPD_EEPROM)
+#include <spd_sdram.h>
+#else
+#include <asm/mmu.h>
+#endif
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+#endif
+
+const qe_iop_conf_t qe_iop_conf_tab[] = {
+ /* GETH1 */
+ {0, 3, 1, 0, 1}, /* TxD0 */
+ {0, 4, 1, 0, 1}, /* TxD1 */
+ {0, 5, 1, 0, 1}, /* TxD2 */
+ {0, 6, 1, 0, 1}, /* TxD3 */
+ {1, 6, 1, 0, 3}, /* TxD4 */
+ {1, 7, 1, 0, 1}, /* TxD5 */
+ {1, 9, 1, 0, 2}, /* TxD6 */
+ {1, 10, 1, 0, 2}, /* TxD7 */
+ {0, 9, 2, 0, 1}, /* RxD0 */
+ {0, 10, 2, 0, 1}, /* RxD1 */
+ {0, 11, 2, 0, 1}, /* RxD2 */
+ {0, 12, 2, 0, 1}, /* RxD3 */
+ {0, 13, 2, 0, 1}, /* RxD4 */
+ {1, 1, 2, 0, 2}, /* RxD5 */
+ {1, 0, 2, 0, 2}, /* RxD6 */
+ {1, 4, 2, 0, 2}, /* RxD7 */
+ {0, 7, 1, 0, 1}, /* TX_EN */
+ {0, 8, 1, 0, 1}, /* TX_ER */
+ {0, 15, 2, 0, 1}, /* RX_DV */
+ {0, 16, 2, 0, 1}, /* RX_ER */
+ {0, 0, 2, 0, 1}, /* RX_CLK */
+ {2, 9, 1, 0, 3}, /* GTX_CLK - CLK10 */
+ {2, 8, 2, 0, 1}, /* GTX125 - CLK9 */
+ /* GETH2 */
+ {0, 17, 1, 0, 1}, /* TxD0 */
+ {0, 18, 1, 0, 1}, /* TxD1 */
+ {0, 19, 1, 0, 1}, /* TxD2 */
+ {0, 20, 1, 0, 1}, /* TxD3 */
+ {1, 2, 1, 0, 1}, /* TxD4 */
+ {1, 3, 1, 0, 2}, /* TxD5 */
+ {1, 5, 1, 0, 3}, /* TxD6 */
+ {1, 8, 1, 0, 3}, /* TxD7 */
+ {0, 23, 2, 0, 1}, /* RxD0 */
+ {0, 24, 2, 0, 1}, /* RxD1 */
+ {0, 25, 2, 0, 1}, /* RxD2 */
+ {0, 26, 2, 0, 1}, /* RxD3 */
+ {0, 27, 2, 0, 1}, /* RxD4 */
+ {1, 12, 2, 0, 2}, /* RxD5 */
+ {1, 13, 2, 0, 3}, /* RxD6 */
+ {1, 11, 2, 0, 2}, /* RxD7 */
+ {0, 21, 1, 0, 1}, /* TX_EN */
+ {0, 22, 1, 0, 1}, /* TX_ER */
+ {0, 29, 2, 0, 1}, /* RX_DV */
+ {0, 30, 2, 0, 1}, /* RX_ER */
+ {0, 31, 2, 0, 1}, /* RX_CLK */
+ {2, 2, 1, 0, 2}, /* GTX_CLK = CLK10 */
+ {2, 3, 2, 0, 1}, /* GTX125 - CLK4 */
+
+ {0, 1, 3, 0, 2}, /* MDIO */
+ {0, 2, 1, 0, 1}, /* MDC */
+
+ {0, 0, 0, 0, QE_IOP_TAB_END}, /* END of table */
+};
+
+int board_early_init_f(void)
+{
+ volatile u8 *bcsr = (volatile u8 *)CFG_BCSR;
+
+ /* Enable flash write */
+ bcsr[0xa] &= ~0x04;
+
+ return 0;
+}
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
+extern void ddr_enable_ecc(unsigned int dram_size);
+#endif
+int fixed_sdram(void);
+void sdram_init(void);
+
+long int initdram(int board_type)
+{
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
+ u32 msize = 0;
+
+ if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
+ return -1;
+
+ /* DDR SDRAM - Main SODIMM */
+ im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR;
+#if defined(CONFIG_SPD_EEPROM)
+ msize = spd_sdram();
+#else
+ msize = fixed_sdram();
+#endif
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
+ /*
+ * Initialize DDR ECC byte
+ */
+ ddr_enable_ecc(msize * 1024 * 1024);
+#endif
+ /*
+ * Initialize SDRAM if it is on local bus.
+ */
+ sdram_init();
+ puts(" DDR RAM: ");
+ /* return total bus SDRAM size(bytes) -- DDR */
+ return (msize * 1024 * 1024);
+}
+
+#if !defined(CONFIG_SPD_EEPROM)
+/*************************************************************************
+ * fixed sdram init -- doesn't use serial presence detect.
+ ************************************************************************/
+int fixed_sdram(void)
+{
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
+ u32 msize = 0;
+ u32 ddr_size;
+ u32 ddr_size_log2;
+
+ msize = CFG_DDR_SIZE;
+ for (ddr_size = msize << 20, ddr_size_log2 = 0;
+ (ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) {
+ if (ddr_size & 1) {
+ return -1;
+ }
+ }
+ im->sysconf.ddrlaw[0].ar =
+ LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
+#if (CFG_DDR_SIZE != 256)
+#warning Currenly any ddr size other than 256 is not supported
+#endif
+ im->ddr.csbnds[0].csbnds = 0x00000007;
+ im->ddr.csbnds[1].csbnds = 0x0008000f;
+
+ im->ddr.cs_config[0] = CFG_DDR_CONFIG;
+ im->ddr.cs_config[1] = CFG_DDR_CONFIG;
+
+ im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
+ im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
+ im->ddr.sdram_cfg = CFG_DDR_CONTROL;
+
+ im->ddr.sdram_mode = CFG_DDR_MODE;
+ im->ddr.sdram_interval = CFG_DDR_INTERVAL;
+ udelay(200);
+ im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
+
+ return msize;
+}
+#endif /*!CFG_SPD_EEPROM */
+
+int checkboard(void)
+{
+ puts("Board: Freescale MPC8360EMDS\n");
+ return 0;
+}
+
+/*
+ * if MPC8360EMDS is soldered with SDRAM
+ */
+#if defined(CFG_BR2_PRELIM) \
+ && defined(CFG_OR2_PRELIM) \
+ && defined(CFG_LBLAWBAR2_PRELIM) \
+ && defined(CFG_LBLAWAR2_PRELIM)
+/*
+ * Initialize SDRAM memory on the Local Bus.
+ */
+
+void sdram_init(void)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile lbus83xx_t *lbc = &immap->lbus;
+ uint *sdram_addr = (uint *) CFG_LBC_SDRAM_BASE;
+
+ puts("\n SDRAM on Local Bus: ");
+ print_size(CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
+ /*
+ * Setup SDRAM Base and Option Registers, already done in cpu_init.c
+ */
+ /*setup mtrpt, lsrt and lbcr for LB bus */
+ lbc->lbcr = CFG_LBC_LBCR;
+ lbc->mrtpr = CFG_LBC_MRTPR;
+ lbc->lsrt = CFG_LBC_LSRT;
+ asm("sync");
+
+ /*
+ * Configure the SDRAM controller Machine Mode Register.
+ */
+ lbc->lsdmr = CFG_LBC_LSDMR_5; /* Normal Operation */
+ lbc->lsdmr = CFG_LBC_LSDMR_1; /* Precharge All Banks */
+ asm("sync");
+ *sdram_addr = 0xff;
+ udelay(100);
+
+ /*
+ * We need do 8 times auto refresh operation.
+ */
+ lbc->lsdmr = CFG_LBC_LSDMR_2;
+ asm("sync");
+ *sdram_addr = 0xff; /* 1 times */
+ udelay(100);
+ *sdram_addr = 0xff; /* 2 times */
+ udelay(100);
+ *sdram_addr = 0xff; /* 3 times */
+ udelay(100);
+ *sdram_addr = 0xff; /* 4 times */
+ udelay(100);
+ *sdram_addr = 0xff; /* 5 times */
+ udelay(100);
+ *sdram_addr = 0xff; /* 6 times */
+ udelay(100);
+ *sdram_addr = 0xff; /* 7 times */
+ udelay(100);
+ *sdram_addr = 0xff; /* 8 times */
+ udelay(100);
+
+ /* Mode register write operation */
+ lbc->lsdmr = CFG_LBC_LSDMR_4;
+ asm("sync");
+ *(sdram_addr + 0xcc) = 0xff;
+ udelay(100);
+
+ /* Normal operation */
+ lbc->lsdmr = CFG_LBC_LSDMR_5 | 0x40000000;
+ asm("sync");
+ *sdram_addr = 0xff;
+ udelay(100);
+}
+#else
+void sdram_init(void)
+{
+ puts("SDRAM on Local Bus is NOT available!\n");
+}
+#endif
+
+#if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD)
+/*
+ * ECC user commands
+ */
+void ecc_print_status(void)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile ddr83xx_t *ddr = &immap->ddr;
+
+ printf("\nECC mode: %s\n\n",
+ (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF");
+
+ /* Interrupts */
+ printf("Memory Error Interrupt Enable:\n");
+ printf(" Multiple-Bit Error Interrupt Enable: %d\n",
+ (ddr->err_int_en & ECC_ERR_INT_EN_MBEE) ? 1 : 0);
+ printf(" Single-Bit Error Interrupt Enable: %d\n",
+ (ddr->err_int_en & ECC_ERR_INT_EN_SBEE) ? 1 : 0);
+ printf(" Memory Select Error Interrupt Enable: %d\n\n",
+ (ddr->err_int_en & ECC_ERR_INT_EN_MSEE) ? 1 : 0);
+
+ /* Error disable */
+ printf("Memory Error Disable:\n");
+ printf(" Multiple-Bit Error Disable: %d\n",
+ (ddr->err_disable & ECC_ERROR_DISABLE_MBED) ? 1 : 0);
+ printf(" Sinle-Bit Error Disable: %d\n",
+ (ddr->err_disable & ECC_ERROR_DISABLE_SBED) ? 1 : 0);
+ printf(" Memory Select Error Disable: %d\n\n",
+ (ddr->err_disable & ECC_ERROR_DISABLE_MSED) ? 1 : 0);
+
+ /* Error injection */
+ printf("Memory Data Path Error Injection Mask High/Low: %08lx %08lx\n",
+ ddr->data_err_inject_hi, ddr->data_err_inject_lo);
+
+ printf("Memory Data Path Error Injection Mask ECC:\n");
+ printf(" ECC Mirror Byte: %d\n",
+ (ddr->ecc_err_inject & ECC_ERR_INJECT_EMB) ? 1 : 0);
+ printf(" ECC Injection Enable: %d\n",
+ (ddr->ecc_err_inject & ECC_ERR_INJECT_EIEN) ? 1 : 0);
+ printf(" ECC Error Injection Mask: 0x%02x\n\n",
+ ddr->ecc_err_inject & ECC_ERR_INJECT_EEIM);
+
+ /* SBE counter/threshold */
+ printf("Memory Single-Bit Error Management (0..255):\n");
+ printf(" Single-Bit Error Threshold: %d\n",
+ (ddr->err_sbe & ECC_ERROR_MAN_SBET) >> ECC_ERROR_MAN_SBET_SHIFT);
+ printf(" Single-Bit Error Counter: %d\n\n",
+ (ddr->err_sbe & ECC_ERROR_MAN_SBEC) >> ECC_ERROR_MAN_SBEC_SHIFT);
+
+ /* Error detect */
+ printf("Memory Error Detect:\n");
+ printf(" Multiple Memory Errors: %d\n",
+ (ddr->err_detect & ECC_ERROR_DETECT_MME) ? 1 : 0);
+ printf(" Multiple-Bit Error: %d\n",
+ (ddr->err_detect & ECC_ERROR_DETECT_MBE) ? 1 : 0);
+ printf(" Single-Bit Error: %d\n",
+ (ddr->err_detect & ECC_ERROR_DETECT_SBE) ? 1 : 0);
+ printf(" Memory Select Error: %d\n\n",
+ (ddr->err_detect & ECC_ERROR_DETECT_MSE) ? 1 : 0);
+
+ /* Capture data */
+ printf("Memory Error Address Capture: 0x%08lx\n", ddr->capture_address);
+ printf("Memory Data Path Read Capture High/Low: %08lx %08lx\n",
+ ddr->capture_data_hi, ddr->capture_data_lo);
+ printf("Memory Data Path Read Capture ECC: 0x%02x\n\n",
+ ddr->capture_ecc & CAPTURE_ECC_ECE);
+
+ printf("Memory Error Attributes Capture:\n");
+ printf(" Data Beat Number: %d\n",
+ (ddr->capture_attributes & ECC_CAPT_ATTR_BNUM) >>
+ ECC_CAPT_ATTR_BNUM_SHIFT);
+ printf(" Transaction Size: %d\n",
+ (ddr->capture_attributes & ECC_CAPT_ATTR_TSIZ) >>
+ ECC_CAPT_ATTR_TSIZ_SHIFT);
+ printf(" Transaction Source: %d\n",
+ (ddr->capture_attributes & ECC_CAPT_ATTR_TSRC) >>
+ ECC_CAPT_ATTR_TSRC_SHIFT);
+ printf(" Transaction Type: %d\n",
+ (ddr->capture_attributes & ECC_CAPT_ATTR_TTYP) >>
+ ECC_CAPT_ATTR_TTYP_SHIFT);
+ printf(" Error Information Valid: %d\n\n",
+ ddr->capture_attributes & ECC_CAPT_ATTR_VLD);
+}
+
+int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile ddr83xx_t *ddr = &immap->ddr;
+ volatile u32 val;
+ u64 *addr;
+ u32 count;
+ register u64 *i;
+ u32 ret[2];
+ u32 pattern[2];
+ u32 writeback[2];
+
+ /* The pattern is written into memory to generate error */
+ pattern[0] = 0xfedcba98UL;
+ pattern[1] = 0x76543210UL;
+
+ /* After injecting error, re-initialize the memory with the value */
+ writeback[0] = 0x01234567UL;
+ writeback[1] = 0x89abcdefUL;
+
+ if (argc > 4) {
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ if (argc == 2) {
+ if (strcmp(argv[1], "status") == 0) {
+ ecc_print_status();
+ return 0;
+ } else if (strcmp(argv[1], "captureclear") == 0) {
+ ddr->capture_address = 0;
+ ddr->capture_data_hi = 0;
+ ddr->capture_data_lo = 0;
+ ddr->capture_ecc = 0;
+ ddr->capture_attributes = 0;
+ return 0;
+ }
+ }
+ if (argc == 3) {
+ if (strcmp(argv[1], "sbecnt") == 0) {
+ val = simple_strtoul(argv[2], NULL, 10);
+ if (val > 255) {
+ printf("Incorrect Counter value, "
+ "should be 0..255\n");
+ return 1;
+ }
+
+ val = (val << ECC_ERROR_MAN_SBEC_SHIFT);
+ val |= (ddr->err_sbe & ECC_ERROR_MAN_SBET);
+
+ ddr->err_sbe = val;
+ return 0;
+ } else if (strcmp(argv[1], "sbethr") == 0) {
+ val = simple_strtoul(argv[2], NULL, 10);
+ if (val > 255) {
+ printf("Incorrect Counter value, "
+ "should be 0..255\n");
+ return 1;
+ }
+
+ val = (val << ECC_ERROR_MAN_SBET_SHIFT);
+ val |= (ddr->err_sbe & ECC_ERROR_MAN_SBEC);
+
+ ddr->err_sbe = val;
+ return 0;
+ } else if (strcmp(argv[1], "errdisable") == 0) {
+ val = ddr->err_disable;
+
+ if (strcmp(argv[2], "+sbe") == 0) {
+ val |= ECC_ERROR_DISABLE_SBED;
+ } else if (strcmp(argv[2], "+mbe") == 0) {
+ val |= ECC_ERROR_DISABLE_MBED;
+ } else if (strcmp(argv[2], "+mse") == 0) {
+ val |= ECC_ERROR_DISABLE_MSED;
+ } else if (strcmp(argv[2], "+all") == 0) {
+ val |= (ECC_ERROR_DISABLE_SBED |
+ ECC_ERROR_DISABLE_MBED |
+ ECC_ERROR_DISABLE_MSED);
+ } else if (strcmp(argv[2], "-sbe") == 0) {
+ val &= ~ECC_ERROR_DISABLE_SBED;
+ } else if (strcmp(argv[2], "-mbe") == 0) {
+ val &= ~ECC_ERROR_DISABLE_MBED;
+ } else if (strcmp(argv[2], "-mse") == 0) {
+ val &= ~ECC_ERROR_DISABLE_MSED;
+ } else if (strcmp(argv[2], "-all") == 0) {
+ val &= ~(ECC_ERROR_DISABLE_SBED |
+ ECC_ERROR_DISABLE_MBED |
+ ECC_ERROR_DISABLE_MSED);
+ } else {
+ printf("Incorrect err_disable field\n");
+ return 1;
+ }
+
+ ddr->err_disable = val;
+ __asm__ __volatile__("sync");
+ __asm__ __volatile__("isync");
+ return 0;
+ } else if (strcmp(argv[1], "errdetectclr") == 0) {
+ val = ddr->err_detect;
+
+ if (strcmp(argv[2], "mme") == 0) {
+ val |= ECC_ERROR_DETECT_MME;
+ } else if (strcmp(argv[2], "sbe") == 0) {
+ val |= ECC_ERROR_DETECT_SBE;
+ } else if (strcmp(argv[2], "mbe") == 0) {
+ val |= ECC_ERROR_DETECT_MBE;
+ } else if (strcmp(argv[2], "mse") == 0) {
+ val |= ECC_ERROR_DETECT_MSE;
+ } else if (strcmp(argv[2], "all") == 0) {
+ val |= (ECC_ERROR_DETECT_MME |
+ ECC_ERROR_DETECT_MBE |
+ ECC_ERROR_DETECT_SBE |
+ ECC_ERROR_DETECT_MSE);
+ } else {
+ printf("Incorrect err_detect field\n");
+ return 1;
+ }
+
+ ddr->err_detect = val;
+ return 0;
+ } else if (strcmp(argv[1], "injectdatahi") == 0) {
+ val = simple_strtoul(argv[2], NULL, 16);
+
+ ddr->data_err_inject_hi = val;
+ return 0;
+ } else if (strcmp(argv[1], "injectdatalo") == 0) {
+ val = simple_strtoul(argv[2], NULL, 16);
+
+ ddr->data_err_inject_lo = val;
+ return 0;
+ } else if (strcmp(argv[1], "injectecc") == 0) {
+ val = simple_strtoul(argv[2], NULL, 16);
+ if (val > 0xff) {
+ printf("Incorrect ECC inject mask, "
+ "should be 0x00..0xff\n");
+ return 1;
+ }
+ val |= (ddr->ecc_err_inject & ~ECC_ERR_INJECT_EEIM);
+
+ ddr->ecc_err_inject = val;
+ return 0;
+ } else if (strcmp(argv[1], "inject") == 0) {
+ val = ddr->ecc_err_inject;
+
+ if (strcmp(argv[2], "en") == 0)
+ val |= ECC_ERR_INJECT_EIEN;
+ else if (strcmp(argv[2], "dis") == 0)
+ val &= ~ECC_ERR_INJECT_EIEN;
+ else
+ printf("Incorrect command\n");
+
+ ddr->ecc_err_inject = val;
+ __asm__ __volatile__("sync");
+ __asm__ __volatile__("isync");
+ return 0;
+ } else if (strcmp(argv[1], "mirror") == 0) {
+ val = ddr->ecc_err_inject;
+
+ if (strcmp(argv[2], "en") == 0)
+ val |= ECC_ERR_INJECT_EMB;
+ else if (strcmp(argv[2], "dis") == 0)
+ val &= ~ECC_ERR_INJECT_EMB;
+ else
+ printf("Incorrect command\n");
+
+ ddr->ecc_err_inject = val;
+ return 0;
+ }
+ }
+ if (argc == 4) {
+ if (strcmp(argv[1], "testdw") == 0) {
+ addr = (u64 *) simple_strtoul(argv[2], NULL, 16);
+ count = simple_strtoul(argv[3], NULL, 16);
+
+ if ((u32) addr % 8) {
+ printf("Address not alligned on "
+ "double word boundary\n");
+ return 1;
+ }
+ disable_interrupts();
+
+ for (i = addr; i < addr + count; i++) {
+
+ /* enable injects */
+ ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN;
+ __asm__ __volatile__("sync");
+ __asm__ __volatile__("isync");
+
+ /* write memory location injecting errors */
+ ppcDWstore((u32 *) i, pattern);
+ __asm__ __volatile__("sync");
+
+ /* disable injects */
+ ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN;
+ __asm__ __volatile__("sync");
+ __asm__ __volatile__("isync");
+
+ /* read data, this generates ECC error */
+ ppcDWload((u32 *) i, ret);
+ __asm__ __volatile__("sync");
+
+ /* re-initialize memory, double word write the location again,
+ * generates new ECC code this time */
+ ppcDWstore((u32 *) i, writeback);
+ __asm__ __volatile__("sync");
+ }
+ enable_interrupts();
+ return 0;
+ }
+ if (strcmp(argv[1], "testword") == 0) {
+ addr = (u64 *) simple_strtoul(argv[2], NULL, 16);
+ count = simple_strtoul(argv[3], NULL, 16);
+
+ if ((u32) addr % 8) {
+ printf("Address not alligned on "
+ "double word boundary\n");
+ return 1;
+ }
+ disable_interrupts();
+
+ for (i = addr; i < addr + count; i++) {
+
+ /* enable injects */
+ ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN;
+ __asm__ __volatile__("sync");
+ __asm__ __volatile__("isync");
+
+ /* write memory location injecting errors */
+ *(u32 *) i = 0xfedcba98UL;
+ __asm__ __volatile__("sync");
+
+ /* sub double word write,
+ * bus will read-modify-write,
+ * generates ECC error */
+ *((u32 *) i + 1) = 0x76543210UL;
+ __asm__ __volatile__("sync");
+
+ /* disable injects */
+ ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN;
+ __asm__ __volatile__("sync");
+ __asm__ __volatile__("isync");
+
+ /* re-initialize memory,
+ * double word write the location again,
+ * generates new ECC code this time */
+ ppcDWstore((u32 *) i, writeback);
+ __asm__ __volatile__("sync");
+ }
+ enable_interrupts();
+ return 0;
+ }
+ }
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+}
+
+U_BOOT_CMD(ecc, 4, 0, do_ecc,
+ "ecc - support for DDR ECC features\n",
+ "status - print out status info\n"
+ "ecc captureclear - clear capture regs data\n"
+ "ecc sbecnt <val> - set Single-Bit Error counter\n"
+ "ecc sbethr <val> - set Single-Bit Threshold\n"
+ "ecc errdisable <flag> - clear/set disable Memory Error Disable, flag:\n"
+ " [-|+]sbe - Single-Bit Error\n"
+ " [-|+]mbe - Multiple-Bit Error\n"
+ " [-|+]mse - Memory Select Error\n"
+ " [-|+]all - all errors\n"
+ "ecc errdetectclr <flag> - clear Memory Error Detect, flag:\n"
+ " mme - Multiple Memory Errors\n"
+ " sbe - Single-Bit Error\n"
+ " mbe - Multiple-Bit Error\n"
+ " mse - Memory Select Error\n"
+ " all - all errors\n"
+ "ecc injectdatahi <hi> - set Memory Data Path Error Injection Mask High\n"
+ "ecc injectdatalo <lo> - set Memory Data Path Error Injection Mask Low\n"
+ "ecc injectecc <ecc> - set ECC Error Injection Mask\n"
+ "ecc inject <en|dis> - enable/disable error injection\n"
+ "ecc mirror <en|dis> - enable/disable mirror byte\n"
+ "ecc testdw <addr> <cnt> - test mem region with double word access:\n"
+ " - enables injects\n"
+ " - writes pattern injecting errors with double word access\n"
+ " - disables injects\n"
+ " - reads pattern back with double word access, generates error\n"
+ " - re-inits memory\n"
+ "ecc testword <addr> <cnt> - test mem region with word access:\n"
+ " - enables injects\n"
+ " - writes pattern injecting errors with word access\n"
+ " - writes pattern with word access, generates error\n"
+ " - disables injects\n" " - re-inits memory");
+#endif /* if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) */
+
+#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup(void *blob, bd_t *bd)
+{
+ u32 *p;
+ int len;
+
+#ifdef CONFIG_PCI
+ ft_pci_setup(blob, bd);
+#endif
+ ft_cpu_setup(blob, bd);
+
+ p = ft_get_prop(blob, "/memory/reg", &len);
+ if (p != NULL) {
+ *p++ = cpu_to_be32(bd->bi_memstart);
+ *p = cpu_to_be32(bd->bi_memsize);
+ }
+}
+#endif
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-31 20:20:53 +0000