[J-u-boot.git] / board / sbc8349 / sbc8349.c

/*
 * sbc8349.c -- WindRiver SBC8349 board support.
 * Copyright (c) 2006-2007 Wind River Systems, Inc.
 *
 * Paul Gortmaker <[email protected]>
 * Based on board/mpc8349emds/mpc8349emds.c (and previous 834x releases.)
 *
 * 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
 *
 */

#include <common.h>
#include <ioports.h>
#include <mpc83xx.h>
#include <asm/mpc8349_pci.h>
#include <i2c.h>
#include <spd.h>
#include <miiphy.h>
#include <command.h>
#if defined(CONFIG_SPD_EEPROM)
#include <spd_sdram.h>
#endif
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
#endif

int fixed_sdram(void);
void sdram_init(void);

#if defined(CONFIG_DDR_ECC) && defined(CONFIG_MPC83XX)
void ddr_enable_ecc(unsigned int dram_size);
#endif

#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f (void)
{
	return 0;
}
#endif

#define ns2clk(ns) (ns / (1000000000 / CONFIG_8349_CLKIN) + 1)

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;

	puts("Initializing\n");

	/* 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
	/*
	 * Initialize SDRAM if it is on local bus.
	 */
	sdram_init();

#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
	/*
	 * Initialize and enable DDR ECC.
	 */
	ddr_enable_ecc(msize * 1024 * 1024);
#endif
	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].bar = ((CFG_DDR_SDRAM_BASE>>12) & 0xfffff);
	im->sysconf.ddrlaw[0].ar = LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);

#if (CFG_DDR_SIZE != 256)
#warning Currently any ddr size other than 256 is not supported
#endif
	im->ddr.csbnds[2].csbnds = 0x0000000f;
	im->ddr.cs_config[2] = CFG_DDR_CONFIG;

	/* currently we use only one CS, so disable the other banks */
	im->ddr.cs_config[0] = 0;
	im->ddr.cs_config[1] = 0;
	im->ddr.cs_config[3] = 0;

	im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
	im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;

	im->ddr.sdram_cfg =
		SDRAM_CFG_SREN
#if defined(CONFIG_DDR_2T_TIMING)
		| SDRAM_CFG_2T_EN
#endif
		| 2 << SDRAM_CFG_SDRAM_TYPE_SHIFT;
#if defined (CONFIG_DDR_32BIT)
	/* for 32-bit mode burst length is 8 */
	im->ddr.sdram_cfg |= (SDRAM_CFG_32_BE | SDRAM_CFG_8_BE);
#endif
	im->ddr.sdram_mode = CFG_DDR_MODE;

	im->ddr.sdram_interval = CFG_DDR_INTERVAL;
	udelay(200);

	/* enable DDR controller */
	im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
	return msize;
}
#endif/*!CFG_SPD_EEPROM*/


int checkboard (void)
{
	puts("Board: Wind River SBC834x\n");
	return 0;
}

/*
 * if board is fitted 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; /* 0x40636733; normal operation */

	lbc->lsdmr = CFG_LBC_LSDMR_1; /* 0x68636733; precharge all the banks */
	asm("sync");
	*sdram_addr = 0xff;
	udelay(100);

	lbc->lsdmr = CFG_LBC_LSDMR_2; /* 0x48636733; auto refresh */
	asm("sync");
	/*1 times*/
	*sdram_addr = 0xff;
	udelay(100);
	/*2 times*/
	*sdram_addr = 0xff;
	udelay(100);
	/*3 times*/
	*sdram_addr = 0xff;
	udelay(100);
	/*4 times*/
	*sdram_addr = 0xff;
	udelay(100);
	/*5 times*/
	*sdram_addr = 0xff;
	udelay(100);
	/*6 times*/
	*sdram_addr = 0xff;
	udelay(100);
	/*7 times*/
	*sdram_addr = 0xff;
	udelay(100);
	/*8 times*/
	*sdram_addr = 0xff;
	udelay(100);

	/* 0x58636733; mode register write operation */
	lbc->lsdmr = CFG_LBC_LSDMR_4;
	asm("sync");
	*sdram_addr = 0xff;
	udelay(100);

	lbc->lsdmr = CFG_LBC_LSDMR_5; /* 0x40636733; normal operation */
	asm("sync");
	*sdram_addr = 0xff;
	udelay(100);
}
#else
void sdram_init(void)
{
	puts("   SDRAM on Local Bus: Disabled in config\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, count, val64;
	register u64 *i;

	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], "test") == 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();
			icache_disable();

			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 */
				*i = 0x1122334455667788ULL;
				__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 */
				val64 = *i;
				__asm__ __volatile__ ("sync");

				/* disable errors for ECC */
				ddr->err_disable |= ~ECC_ERROR_ENABLE;
				__asm__ __volatile__ ("sync");
				__asm__ __volatile__ ("isync");

				/* re-initialize memory, write the location again
				 * NOT injecting errors this time */
				*i = 0xcafecafecafecafeULL;
				__asm__ __volatile__ ("sync");

				/* enable errors for ECC */
				ddr->err_disable &= ECC_ERROR_ENABLE;
				__asm__ __volatile__ ("sync");
				__asm__ __volatile__ ("isync");
			}

			icache_enable();
			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 test <addr> <cnt>  - test mem region:\n"
	"  - enables injects\n"
	"  - writes pattern injecting errors\n"
	"  - disables injects\n"
	"  - reads pattern back, generates error\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
Commit	Line	Data
91e25769 PG	1	/*
	2	* sbc8349.c -- WindRiver SBC8349 board support.
	3	* Copyright (c) 2006-2007 Wind River Systems, Inc.
	4	*
	5	* Paul Gortmaker <[email protected]>
	6	* Based on board/mpc8349emds/mpc8349emds.c (and previous 834x releases.)
	7	*
	8	* See file CREDITS for list of people who contributed to this
	9	* project.
	10	*
	11	* This program is free software; you can redistribute it and/or
	12	* modify it under the terms of the GNU General Public License as
	13	* published by the Free Software Foundation; either version 2 of
	14	* the License, or (at your option) any later version.
	15	*
	16	* This program is distributed in the hope that it will be useful,
	17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	* GNU General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU General Public License
	22	* along with this program; if not, write to the Free Software
	23	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	24	* MA 02111-1307 USA
	25	*
	26	*/
	27
	28	#include <common.h>
	29	#include <ioports.h>
	30	#include <mpc83xx.h>
	31	#include <asm/mpc8349_pci.h>
	32	#include <i2c.h>
	33	#include <spd.h>
	34	#include <miiphy.h>
	35	#include <command.h>
	36	#if defined(CONFIG_SPD_EEPROM)
	37	#include <spd_sdram.h>
	38	#endif
	39	#if defined(CONFIG_OF_FLAT_TREE)
	40	#include <ft_build.h>
	41	#endif
	42
	43	int fixed_sdram(void);
	44	void sdram_init(void);
	45
	46	#if defined(CONFIG_DDR_ECC) && defined(CONFIG_MPC83XX)
	47	void ddr_enable_ecc(unsigned int dram_size);
	48	#endif
	49
	50	#ifdef CONFIG_BOARD_EARLY_INIT_F
	51	int board_early_init_f (void)
	52	{
	53	return 0;
	54	}
	55	#endif
	56
	57	#define ns2clk(ns) (ns / (1000000000 / CONFIG_8349_CLKIN) + 1)
	58
	59	long int initdram (int board_type)
	60	{
	61	volatile immap_t im = (immap_t )CFG_IMMR;
	62	u32 msize = 0;
	63
	64	if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
65	return -1;
66
67	puts("Initializing\n");
68
69	/* DDR SDRAM - Main SODIMM */
70	im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR;
71	#if defined(CONFIG_SPD_EEPROM)
72	msize = spd_sdram();
73	#else
74	msize = fixed_sdram();
75	#endif
76	/*
77	* Initialize SDRAM if it is on local bus.
78	*/
79	sdram_init();
80
81	#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
82	/*
83	* Initialize and enable DDR ECC.
84	*/
85	ddr_enable_ecc(msize * 1024 * 1024);
86	#endif
87	puts(" DDR RAM: ");
88	/* return total bus SDRAM size(bytes) -- DDR */
89	return (msize * 1024 * 1024);
90	}
91
92	#if !defined(CONFIG_SPD_EEPROM)
93	/*************************************************************************
94	* fixed sdram init -- doesn't use serial presence detect.
95	************************************************************************/
96	int fixed_sdram(void)
97	{
98	volatile immap_t im = (immap_t )CFG_IMMR;
99	u32 msize = 0;
100	u32 ddr_size;
101	u32 ddr_size_log2;
102
103	msize = CFG_DDR_SIZE;
104	for (ddr_size = msize << 20, ddr_size_log2 = 0;
105	(ddr_size > 1);
106	ddr_size = ddr_size>>1, ddr_size_log2++) {
107	if (ddr_size & 1) {
108	return -1;
109	}
110	}
111	im->sysconf.ddrlaw[0].bar = ((CFG_DDR_SDRAM_BASE>>12) & 0xfffff);
112	im->sysconf.ddrlaw[0].ar = LAWAR_EN \| ((ddr_size_log2 - 1) & LAWAR_SIZE);
113
114	#if (CFG_DDR_SIZE != 256)
115	#warning Currently any ddr size other than 256 is not supported
116	#endif
117	im->ddr.csbnds[2].csbnds = 0x0000000f;
118	im->ddr.cs_config[2] = CFG_DDR_CONFIG;
119
120	/* currently we use only one CS, so disable the other banks */
121	im->ddr.cs_config[0] = 0;
122	im->ddr.cs_config[1] = 0;
123	im->ddr.cs_config[3] = 0;
124
125	im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
126	im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
127
128	im->ddr.sdram_cfg =
129	SDRAM_CFG_SREN
130	#if defined(CONFIG_DDR_2T_TIMING)
131	\| SDRAM_CFG_2T_EN
132	#endif
133	\| 2 << SDRAM_CFG_SDRAM_TYPE_SHIFT;
134	#if defined (CONFIG_DDR_32BIT)
135	/* for 32-bit mode burst length is 8 */
136	im->ddr.sdram_cfg \|= (SDRAM_CFG_32_BE \| SDRAM_CFG_8_BE);
137	#endif
138	im->ddr.sdram_mode = CFG_DDR_MODE;
139
140	im->ddr.sdram_interval = CFG_DDR_INTERVAL;
141	udelay(200);
142
143	/* enable DDR controller */
144	im->ddr.sdram_cfg \|= SDRAM_CFG_MEM_EN;
145	return msize;
146	}
147	#endif/!CFG_SPD_EEPROM/
148
149
150	int checkboard (void)
151	{
152	puts("Board: Wind River SBC834x\n");
153	return 0;
154	}
155
156	/*
157	* if board is fitted with SDRAM
158	*/
159	#if defined(CFG_BR2_PRELIM) \
160	&& defined(CFG_OR2_PRELIM) \
161	&& defined(CFG_LBLAWBAR2_PRELIM) \
162	&& defined(CFG_LBLAWAR2_PRELIM)
163	/*
164	* Initialize SDRAM memory on the Local Bus.
165	*/
166
167	void sdram_init(void)
168	{
169	volatile immap_t immap = (immap_t )CFG_IMMR;
170	volatile lbus83xx_t *lbc= &immap->lbus;
171	uint sdram_addr = (uint )CFG_LBC_SDRAM_BASE;
172
173	puts("\n SDRAM on Local Bus: ");
174	print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
175
176	/*
177	* Setup SDRAM Base and Option Registers, already done in cpu_init.c
178	*/
179
180	/* setup mtrpt, lsrt and lbcr for LB bus */
181	lbc->lbcr = CFG_LBC_LBCR;
182	lbc->mrtpr = CFG_LBC_MRTPR;
183	lbc->lsrt = CFG_LBC_LSRT;
184	asm("sync");
185
186	/*
187	* Configure the SDRAM controller Machine Mode Register.
188	*/
189	lbc->lsdmr = CFG_LBC_LSDMR_5; /* 0x40636733; normal operation */
190
191	lbc->lsdmr = CFG_LBC_LSDMR_1; /* 0x68636733; precharge all the banks */
192	asm("sync");
193	*sdram_addr = 0xff;
194	udelay(100);
195
196	lbc->lsdmr = CFG_LBC_LSDMR_2; /* 0x48636733; auto refresh */
197	asm("sync");
198	/1 times/
199	*sdram_addr = 0xff;
200	udelay(100);
201	/2 times/
202	*sdram_addr = 0xff;
203	udelay(100);
204	/3 times/
205	*sdram_addr = 0xff;
206	udelay(100);
207	/4 times/
208	*sdram_addr = 0xff;
209	udelay(100);
210	/5 times/
211	*sdram_addr = 0xff;
212	udelay(100);
213	/6 times/
214	*sdram_addr = 0xff;
215	udelay(100);
216	/7 times/
217	*sdram_addr = 0xff;
218	udelay(100);
219	/8 times/
220	*sdram_addr = 0xff;
221	udelay(100);
222
223	/* 0x58636733; mode register write operation */
224	lbc->lsdmr = CFG_LBC_LSDMR_4;
225	asm("sync");
226	*sdram_addr = 0xff;
227	udelay(100);
228
229	lbc->lsdmr = CFG_LBC_LSDMR_5; /* 0x40636733; normal operation */
230	asm("sync");
231	*sdram_addr = 0xff;
232	udelay(100);
233	}
234	#else
235	void sdram_init(void)
236	{
237	puts(" SDRAM on Local Bus: Disabled in config\n");
238	}
239	#endif
240
241	#if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD)
242	/*
243	* ECC user commands
244	*/
245	void ecc_print_status(void)
246	{
247	volatile immap_t immap = (immap_t )CFG_IMMR;
248	volatile ddr83xx_t *ddr = &immap->ddr;
249
250	printf("\nECC mode: %s\n\n", (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF");
251
252	/* Interrupts */
253	printf("Memory Error Interrupt Enable:\n");
254	printf(" Multiple-Bit Error Interrupt Enable: %d\n",
255	(ddr->err_int_en & ECC_ERR_INT_EN_MBEE) ? 1 : 0);
256	printf(" Single-Bit Error Interrupt Enable: %d\n",
257	(ddr->err_int_en & ECC_ERR_INT_EN_SBEE) ? 1 : 0);
258	printf(" Memory Select Error Interrupt Enable: %d\n\n",
259	(ddr->err_int_en & ECC_ERR_INT_EN_MSEE) ? 1 : 0);
260
261	/* Error disable */
262	printf("Memory Error Disable:\n");
263	printf(" Multiple-Bit Error Disable: %d\n",
264	(ddr->err_disable & ECC_ERROR_DISABLE_MBED) ? 1 : 0);
265	printf(" Sinle-Bit Error Disable: %d\n",
266	(ddr->err_disable & ECC_ERROR_DISABLE_SBED) ? 1 : 0);
267	printf(" Memory Select Error Disable: %d\n\n",
268	(ddr->err_disable & ECC_ERROR_DISABLE_MSED) ? 1 : 0);
269
270	/* Error injection */
271	printf("Memory Data Path Error Injection Mask High/Low: %08lx %08lx\n",
272	ddr->data_err_inject_hi, ddr->data_err_inject_lo);
273
274	printf("Memory Data Path Error Injection Mask ECC:\n");
275	printf(" ECC Mirror Byte: %d\n",
276	(ddr->ecc_err_inject & ECC_ERR_INJECT_EMB) ? 1 : 0);
277	printf(" ECC Injection Enable: %d\n",
278	(ddr->ecc_err_inject & ECC_ERR_INJECT_EIEN) ? 1 : 0);
279	printf(" ECC Error Injection Mask: 0x%02x\n\n",
280	ddr->ecc_err_inject & ECC_ERR_INJECT_EEIM);
281
282	/* SBE counter/threshold */
283	printf("Memory Single-Bit Error Management (0..255):\n");
284	printf(" Single-Bit Error Threshold: %d\n",
285	(ddr->err_sbe & ECC_ERROR_MAN_SBET) >> ECC_ERROR_MAN_SBET_SHIFT);
286	printf(" Single-Bit Error Counter: %d\n\n",
287	(ddr->err_sbe & ECC_ERROR_MAN_SBEC) >> ECC_ERROR_MAN_SBEC_SHIFT);
288
289	/* Error detect */
290	printf("Memory Error Detect:\n");
291	printf(" Multiple Memory Errors: %d\n",
292	(ddr->err_detect & ECC_ERROR_DETECT_MME) ? 1 : 0);
293	printf(" Multiple-Bit Error: %d\n",
294	(ddr->err_detect & ECC_ERROR_DETECT_MBE) ? 1 : 0);
295	printf(" Single-Bit Error: %d\n",
296	(ddr->err_detect & ECC_ERROR_DETECT_SBE) ? 1 : 0);
297	printf(" Memory Select Error: %d\n\n",
298	(ddr->err_detect & ECC_ERROR_DETECT_MSE) ? 1 : 0);
299
300	/* Capture data */
301	printf("Memory Error Address Capture: 0x%08lx\n", ddr->capture_address);
302	printf("Memory Data Path Read Capture High/Low: %08lx %08lx\n",
303	ddr->capture_data_hi, ddr->capture_data_lo);
304	printf("Memory Data Path Read Capture ECC: 0x%02x\n\n",
305	ddr->capture_ecc & CAPTURE_ECC_ECE);
306
307	printf("Memory Error Attributes Capture:\n");
308	printf(" Data Beat Number: %d\n",
309	(ddr->capture_attributes & ECC_CAPT_ATTR_BNUM) >> ECC_CAPT_ATTR_BNUM_SHIFT);
310	printf(" Transaction Size: %d\n",
311	(ddr->capture_attributes & ECC_CAPT_ATTR_TSIZ) >> ECC_CAPT_ATTR_TSIZ_SHIFT);
312	printf(" Transaction Source: %d\n",
313	(ddr->capture_attributes & ECC_CAPT_ATTR_TSRC) >> ECC_CAPT_ATTR_TSRC_SHIFT);
314	printf(" Transaction Type: %d\n",
315	(ddr->capture_attributes & ECC_CAPT_ATTR_TTYP) >> ECC_CAPT_ATTR_TTYP_SHIFT);
316	printf(" Error Information Valid: %d\n\n",
317	ddr->capture_attributes & ECC_CAPT_ATTR_VLD);
318	}
319
320	int do_ecc ( cmd_tbl_t cmdtp, int flag, int argc, char argv[])
321	{
322	volatile immap_t immap = (immap_t )CFG_IMMR;
323	volatile ddr83xx_t *ddr = &immap->ddr;
324	volatile u32 val;
325	u64 *addr, count, val64;
326	register u64 *i;
327
328	if (argc > 4) {
329	printf ("Usage:\n%s\n", cmdtp->usage);
330	return 1;
331	}
332
333	if (argc == 2) {
334	if (strcmp(argv[1], "status") == 0) {
335	ecc_print_status();
336	return 0;
337	} else if (strcmp(argv[1], "captureclear") == 0) {
338	ddr->capture_address = 0;
339	ddr->capture_data_hi = 0;
340	ddr->capture_data_lo = 0;
341	ddr->capture_ecc = 0;
342	ddr->capture_attributes = 0;
343	return 0;
344	}
345	}
346
347	if (argc == 3) {
348	if (strcmp(argv[1], "sbecnt") == 0) {
349	val = simple_strtoul(argv[2], NULL, 10);
350	if (val > 255) {
351	printf("Incorrect Counter value, should be 0..255\n");
352	return 1;
353	}
354
355	val = (val << ECC_ERROR_MAN_SBEC_SHIFT);
356	val \|= (ddr->err_sbe & ECC_ERROR_MAN_SBET);
357
358	ddr->err_sbe = val;
359	return 0;
360	} else if (strcmp(argv[1], "sbethr") == 0) {
361	val = simple_strtoul(argv[2], NULL, 10);
362	if (val > 255) {
363	printf("Incorrect Counter value, should be 0..255\n");
364	return 1;
365	}
366
367	val = (val << ECC_ERROR_MAN_SBET_SHIFT);
368	val \|= (ddr->err_sbe & ECC_ERROR_MAN_SBEC);
369
370	ddr->err_sbe = val;
371	return 0;
372	} else if (strcmp(argv[1], "errdisable") == 0) {
373	val = ddr->err_disable;
374
375	if (strcmp(argv[2], "+sbe") == 0) {
376	val \|= ECC_ERROR_DISABLE_SBED;
377	} else if (strcmp(argv[2], "+mbe") == 0) {
378	val \|= ECC_ERROR_DISABLE_MBED;
379	} else if (strcmp(argv[2], "+mse") == 0) {
380	val \|= ECC_ERROR_DISABLE_MSED;
381	} else if (strcmp(argv[2], "+all") == 0) {
382	val \|= (ECC_ERROR_DISABLE_SBED \|
383	ECC_ERROR_DISABLE_MBED \|
384	ECC_ERROR_DISABLE_MSED);
385	} else if (strcmp(argv[2], "-sbe") == 0) {
386	val &= ~ECC_ERROR_DISABLE_SBED;
387	} else if (strcmp(argv[2], "-mbe") == 0) {
388	val &= ~ECC_ERROR_DISABLE_MBED;
389	} else if (strcmp(argv[2], "-mse") == 0) {
390	val &= ~ECC_ERROR_DISABLE_MSED;
391	} else if (strcmp(argv[2], "-all") == 0) {
392	val &= ~(ECC_ERROR_DISABLE_SBED \|
393	ECC_ERROR_DISABLE_MBED \|
394	ECC_ERROR_DISABLE_MSED);
395	} else {
396	printf("Incorrect err_disable field\n");
397	return 1;
398	}
399
400	ddr->err_disable = val;
401	__asm__ __volatile__ ("sync");
402	__asm__ __volatile__ ("isync");
403	return 0;
404	} else if (strcmp(argv[1], "errdetectclr") == 0) {
405	val = ddr->err_detect;
406
407	if (strcmp(argv[2], "mme") == 0) {
408	val \|= ECC_ERROR_DETECT_MME;
409	} else if (strcmp(argv[2], "sbe") == 0) {
410	val \|= ECC_ERROR_DETECT_SBE;
411	} else if (strcmp(argv[2], "mbe") == 0) {
412	val \|= ECC_ERROR_DETECT_MBE;
413	} else if (strcmp(argv[2], "mse") == 0) {
414	val \|= ECC_ERROR_DETECT_MSE;
415	} else if (strcmp(argv[2], "all") == 0) {
416	val \|= (ECC_ERROR_DETECT_MME \|
417	ECC_ERROR_DETECT_MBE \|
418	ECC_ERROR_DETECT_SBE \|
419	ECC_ERROR_DETECT_MSE);
420	} else {
421	printf("Incorrect err_detect field\n");
422	return 1;
423	}
424
425	ddr->err_detect = val;
426	return 0;
427	} else if (strcmp(argv[1], "injectdatahi") == 0) {
428	val = simple_strtoul(argv[2], NULL, 16);
429
430	ddr->data_err_inject_hi = val;
431	return 0;
432	} else if (strcmp(argv[1], "injectdatalo") == 0) {
433	val = simple_strtoul(argv[2], NULL, 16);
434
435	ddr->data_err_inject_lo = val;
436	return 0;
437	} else if (strcmp(argv[1], "injectecc") == 0) {
438	val = simple_strtoul(argv[2], NULL, 16);
439	if (val > 0xff) {
440	printf("Incorrect ECC inject mask, should be 0x00..0xff\n");
441	return 1;
442	}
443	val \|= (ddr->ecc_err_inject & ~ECC_ERR_INJECT_EEIM);
444
445	ddr->ecc_err_inject = val;
446	return 0;
447	} else if (strcmp(argv[1], "inject") == 0) {
448	val = ddr->ecc_err_inject;
449
450	if (strcmp(argv[2], "en") == 0)
451	val \|= ECC_ERR_INJECT_EIEN;
452	else if (strcmp(argv[2], "dis") == 0)
453	val &= ~ECC_ERR_INJECT_EIEN;
454	else
455	printf("Incorrect command\n");
456
457	ddr->ecc_err_inject = val;
458	__asm__ __volatile__ ("sync");
459	__asm__ __volatile__ ("isync");
460	return 0;
461	} else if (strcmp(argv[1], "mirror") == 0) {
462	val = ddr->ecc_err_inject;
463
464	if (strcmp(argv[2], "en") == 0)
465	val \|= ECC_ERR_INJECT_EMB;
466	else if (strcmp(argv[2], "dis") == 0)
467	val &= ~ECC_ERR_INJECT_EMB;
468	else
469	printf("Incorrect command\n");
470
471	ddr->ecc_err_inject = val;
472	return 0;
473	}
474	}
475
476	if (argc == 4) {
477	if (strcmp(argv[1], "test") == 0) {
478	addr = (u64 *)simple_strtoul(argv[2], NULL, 16);
479	count = simple_strtoul(argv[3], NULL, 16);
480
481	if ((u32)addr % 8) {
482	printf("Address not alligned on double word boundary\n");
483	return 1;
484	}
485
486	disable_interrupts();
487	icache_disable();
488
489	for (i = addr; i < addr + count; i++) {
490	/* enable injects */
491	ddr->ecc_err_inject \|= ECC_ERR_INJECT_EIEN;
492	__asm__ __volatile__ ("sync");
493	__asm__ __volatile__ ("isync");
494
495	/* write memory location injecting errors */
496	*i = 0x1122334455667788ULL;
497	__asm__ __volatile__ ("sync");
498
499	/* disable injects */
500	ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN;
501	__asm__ __volatile__ ("sync");
502	__asm__ __volatile__ ("isync");
503
504	/* read data, this generates ECC error */
505	val64 = *i;
506	__asm__ __volatile__ ("sync");
507
508	/* disable errors for ECC */
509	ddr->err_disable \|= ~ECC_ERROR_ENABLE;
510	__asm__ __volatile__ ("sync");
511	__asm__ __volatile__ ("isync");
512
513	/* re-initialize memory, write the location again
514	* NOT injecting errors this time */
515	*i = 0xcafecafecafecafeULL;
516	__asm__ __volatile__ ("sync");
517
518	/* enable errors for ECC */
519	ddr->err_disable &= ECC_ERROR_ENABLE;
520	__asm__ __volatile__ ("sync");
521	__asm__ __volatile__ ("isync");
522	}
523
524	icache_enable();
525	enable_interrupts();
526
527	return 0;
528	}
529	}
530
531	printf ("Usage:\n%s\n", cmdtp->usage);
532	return 1;
533	}
534
535	U_BOOT_CMD(
536	ecc, 4, 0, do_ecc,
537	"ecc - support for DDR ECC features\n",
538	"status - print out status info\n"
539	"ecc captureclear - clear capture regs data\n"
540	"ecc sbecnt <val> - set Single-Bit Error counter\n"
541	"ecc sbethr <val> - set Single-Bit Threshold\n"
542	"ecc errdisable <flag> - clear/set disable Memory Error Disable, flag:\n"
543	" [-\|+]sbe - Single-Bit Error\n"
544	" [-\|+]mbe - Multiple-Bit Error\n"
545	" [-\|+]mse - Memory Select Error\n"
546	" [-\|+]all - all errors\n"
547	"ecc errdetectclr <flag> - clear Memory Error Detect, flag:\n"
548	" mme - Multiple Memory Errors\n"
549	" sbe - Single-Bit Error\n"
550	" mbe - Multiple-Bit Error\n"
551	" mse - Memory Select Error\n"
552	" all - all errors\n"
553	"ecc injectdatahi <hi> - set Memory Data Path Error Injection Mask High\n"
554	"ecc injectdatalo <lo> - set Memory Data Path Error Injection Mask Low\n"
555	"ecc injectecc <ecc> - set ECC Error Injection Mask\n"
556	"ecc inject <en\|dis> - enable/disable error injection\n"
557	"ecc mirror <en\|dis> - enable/disable mirror byte\n"
558	"ecc test <addr> <cnt> - test mem region:\n"
559	" - enables injects\n"
560	" - writes pattern injecting errors\n"
561	" - disables injects\n"
562	" - reads pattern back, generates error\n"
563	" - re-inits memory"
564	);
565	#endif /* if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) */
566
567	#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
568	void
569	ft_board_setup(void blob, bd_t bd)
570	{
571	u32 *p;
572	int len;
573
574	#ifdef CONFIG_PCI
575	ft_pci_setup(blob, bd);
576	#endif
577	ft_cpu_setup(blob, bd);
578
579	p = ft_get_prop(blob, "/memory/reg", &len);
580	if (p != NULL) {
581	*p++ = cpu_to_be32(bd->bi_memstart);
582	*p = cpu_to_be32(bd->bi_memsize);
583	}
584	}
585	#endif