[people/ms/u-boot.git] / board / netvia / netvia.c

/*
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * 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
 */

/*
 * Pantelis Antoniou, Intracom S.A., panto@intracom.gr
 * U-Boot port on NetVia board
 */

#include <common.h>
#include "mpc8xx.h"

/****************************************************************/

#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
/* last value written to the external register; we cannot read back */
unsigned int last_er_val;
#endif

/****************************************************************/

/****************************************************************/

/* some sane bit macros */
#define _BD(_b)				(1U << (31-(_b)))
#define _BDR(_l, _h)			(((((1U << (31-(_l))) - 1) << 1) | 1) & ~((1U << (31-(_h))) - 1))

#define _BW(_b)				(1U << (15-(_b)))
#define _BWR(_l, _h)			(((((1U << (15-(_l))) - 1) << 1) | 1) & ~((1U << (15-(_h))) - 1))

#define _BB(_b)				(1U << (7-(_b)))
#define _BBR(_l, _h)			(((((1U << (7-(_l))) - 1) << 1) | 1) & ~((1U << (7-(_h))) - 1))

#define _B(_b)				_BD(_b)
#define _BR(_l, _h)			_BDR(_l, _h)

/****************************************************************/

#define _NOT_USED_	0xFFFFFFFF

/****************************************************************/

#define CS_0000		0x00000000
#define CS_0001		0x10000000
#define CS_0010		0x20000000
#define CS_0011		0x30000000
#define CS_0100		0x40000000
#define CS_0101		0x50000000
#define CS_0110		0x60000000
#define CS_0111		0x70000000
#define CS_1000		0x80000000
#define CS_1001		0x90000000
#define CS_1010		0xA0000000
#define CS_1011		0xB0000000
#define CS_1100		0xC0000000
#define CS_1101		0xD0000000
#define CS_1110		0xE0000000
#define CS_1111		0xF0000000

#define BS_0000		0x00000000
#define BS_0001		0x01000000
#define BS_0010		0x02000000
#define BS_0011		0x03000000
#define BS_0100		0x04000000
#define BS_0101		0x05000000
#define BS_0110		0x06000000
#define BS_0111		0x07000000
#define BS_1000		0x08000000
#define BS_1001		0x09000000
#define BS_1010		0x0A000000
#define BS_1011		0x0B000000
#define BS_1100		0x0C000000
#define BS_1101		0x0D000000
#define BS_1110		0x0E000000
#define BS_1111		0x0F000000

#define A10_AAAA	0x00000000
#define A10_AAA0	0x00200000
#define A10_AAA1	0x00300000
#define A10_000A	0x00800000
#define A10_0000	0x00A00000
#define A10_0001	0x00B00000
#define A10_111A	0x00C00000
#define A10_1110	0x00E00000
#define A10_1111	0x00F00000

#define RAS_0000	0x00000000
#define RAS_0001	0x00040000
#define RAS_1110	0x00080000
#define RAS_1111	0x000C0000

#define CAS_0000	0x00000000
#define CAS_0001	0x00010000
#define CAS_1110	0x00020000
#define CAS_1111	0x00030000

#define WE_0000		0x00000000
#define WE_0001		0x00004000
#define WE_1110		0x00008000
#define WE_1111		0x0000C000

#define GPL4_0000	0x00000000
#define GPL4_0001	0x00001000
#define GPL4_1110	0x00002000
#define GPL4_1111	0x00003000

#define GPL5_0000	0x00000000
#define GPL5_0001	0x00000400
#define GPL5_1110	0x00000800
#define GPL5_1111	0x00000C00
#define LOOP		0x00000080

#define EXEN		0x00000040

#define AMX_COL		0x00000000
#define AMX_ROW		0x00000020
#define AMX_MAR		0x00000030

#define NA		0x00000008

#define UTA		0x00000004

#define TODT		0x00000002

#define LAST		0x00000001

const uint sdram_table[0x40] = {
	/* RSS */
	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
	CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
	CS_0000 | BS_1111 | A10_0001 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA,			/* READ  */
	CS_0001 | BS_0001 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA,			/* PALL  */
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST,	/* NOP   */
	_NOT_USED_, _NOT_USED_,

	/* RBS */
	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
	CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
	CS_0001 | BS_1111 | A10_0001 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA,			/* READ  */
	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP	 */
	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP	 */
	CS_0001 | BS_0001 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL,				/* PALL  */
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | TODT | LAST,		/* NOP	 */
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,

	/* WSS */
	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,
	CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,
	CS_0000 | BS_0001 | A10_0000 | RAS_1111 | CAS_0001 | WE_0000 | AMX_COL | UTA,
	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA | TODT | LAST,
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,

	/* WBS */
	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
	CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
	CS_0001 | BS_0000 | A10_0000 | RAS_1111 | CAS_0001 | WE_0000 | AMX_COL,				/* WRITE */
	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
	CS_1111 | BS_0001 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA,			/* PALL  */
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST,	/* NOP   */
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
	_NOT_USED_, _NOT_USED_, _NOT_USED_,

	/* UPT */
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_0001 | WE_1111 | AMX_COL | LOOP,
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | LOOP,
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | LAST,
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
	_NOT_USED_, _NOT_USED_,

	/* EXC */
	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL,
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | TODT | LAST,

	/* REG */
	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1110 | AMX_MAR,
	CS_0001 | BS_1111 | A10_0001 | RAS_0001 | CAS_0001 | WE_0001 | AMX_MAR | TODT | LAST,
};

/* ------------------------------------------------------------------------- */


/*
 * Check Board Identity:
 *
 * Test ETX ID string (ETX_xxx...)
 *
 * Return 1 always.
 */

int checkboard(void)
{
#if !defined(CONFIG_NETVIA_VERSION) || CONFIG_NETVIA_VERSION == 1
	printf ("NETVIA v1\n");
#else
	printf ("NETVIA v2+\n");
#endif
	return (0);
}

/* ------------------------------------------------------------------------- */

/* 0xC8 = 0b11001000 , CAS3, >> 2 = 0b00 11 0 010 */
#define MAR_SDRAM_INIT		0x000000C8LU

#define MCR_OP(x)		((unsigned long)((x) & 3) << (31-1))
#define MCR_OP_MASK		MCR_OP(3)

#define MCR_UM(x)		((unsigned long)((x) & 1) << (31 - 8))
#define MCR_UM_MASK		MCR_UM(1)
#define MCR_UM_UPMA		MCR_UM(0)
#define MCR_UM_UPMB		MCR_UM(1)

#define MCR_MB(x)		((unsigned long)((x) & 7) << (31 - 18))
#define MCR_MB_MASK		MCR_MB(7)
#define MCR_MB_CS(x)		MCR_MB(x)

#define MCR_MCLF(x)		((unsigned long)((x) & 15) << (31 - 23))
#define MCR_MCLF_MASK		MCR_MCLF(15)

long int initdram(int board_type)
{
	volatile immap_t *immap = (immap_t *) CFG_IMMR;
	volatile memctl8xx_t *memctl = &immap->im_memctl;
	long int size;

	upmconfig(UPMA, (uint *) sdram_table, sizeof(sdram_table) / sizeof(uint));

	/*
	 * Preliminary prescaler for refresh
	 */
	memctl->memc_mptpr = CFG_MPTPR_1BK_8K;

	memctl->memc_mar = MAR_SDRAM_INIT;	/* 32-bit address to be output on the address bus if AMX = 0b11 */

    /*
     * Map controller bank 3 to the SDRAM bank at preliminary address.
     */
	memctl->memc_or3 = CFG_OR3_PRELIM;
	memctl->memc_br3 = CFG_BR3_PRELIM;

	memctl->memc_mamr = CFG_MAMR_9COL & ~MAMR_PTAE;	/* no refresh yet */

	udelay(200);

	/* perform SDRAM initialisation sequence */
	memctl->memc_mcr = MCR_OP_RUN | MCR_UM_UPMA | MCR_MB_CS3 | MCR_MCLF(1) | MCR_MAD(0x3C);	/* precharge all			*/
	udelay(1);
	memctl->memc_mcr = MCR_OP_RUN | MCR_UM_UPMA | MCR_MB_CS3 | MCR_MCLF(0) | MCR_MAD(0x30); /* refresh 16 times(0)		*/
	udelay(1);
	memctl->memc_mcr = MCR_OP_RUN | MCR_UM_UPMA | MCR_MB_CS3 | MCR_MCLF(1) | MCR_MAD(0x3E);	/* exception program (write mar) */
	udelay(1);

	memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */

	udelay(1000);

	memctl->memc_mamr = CFG_MAMR_9COL;

	size = SDRAM_MAX_SIZE;

	udelay(10000);

	return (size);
}

/* ------------------------------------------------------------------------- */

int misc_init_r(void)
{
#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
	last_er_val = 0xffffffff;
#endif
	return(0);
}

/* ------------------------------------------------------------------------- */

/* GP = general purpose, SP = special purpose (on chip peripheral) */

/* bits that can have a special purpose or can be configured as inputs/outputs */
#define PA_GP_INMASK	0
#define PA_GP_OUTMASK	(_BW(5) | _BWR(14, 15))
#define PA_SP_MASK	(_BW(4) | _BWR(6, 13))
#define PA_ODR_VAL	0
#define PA_GP_OUTVAL	_BW(5)
#define PA_SP_DIRVAL	0

#define PB_GP_INMASK	_B(28)
#define PB_GP_OUTMASK	(_BR(16, 19) | _BR(26, 27) | _BR(29, 31))
#define PB_SP_MASK	_BR(22, 25)
#define PB_ODR_VAL	0
#define PB_GP_OUTVAL	(_BR(16, 19) | _BR(26, 27) | _BR(29, 31))
#define PB_SP_DIRVAL	0

#if !defined(CONFIG_NETVIA_VERSION) || CONFIG_NETVIA_VERSION == 1

#define PC_GP_INMASK	(_BWR(5, 7) | _BWR(9, 10) | _BW(13))
#define PC_GP_OUTMASK	_BW(12)
#define PC_SP_MASK	(_BW(4) | _BW(8))
#define PC_SOVAL	0
#define PC_INTVAL	0
#define PC_GP_OUTVAL	0
#define PC_SP_DIRVAL	0

#define PD_GP_INMASK	0
#define PD_GP_OUTMASK	_BWR(3, 15)
#define PD_SP_MASK	0
#define PD_GP_OUTVAL	(_BW(3) | _BW(5) | _BW(7) | _BWR(8, 15))
#define PD_SP_DIRVAL	0

#elif CONFIG_NETVIA_VERSION >= 2

#define PC_GP_INMASK	(_BW(5) | _BW(7) | _BWR(9, 11) | _BWR(13, 15))
#define PC_GP_OUTMASK	(_BW(6) | _BW(12))
#define PC_SP_MASK	(_BW(4) | _BW(8))
#define PC_SOVAL	0
#define PC_INTVAL	_BW(7)
#define PC_GP_OUTVAL	(_BW(6) | _BW(12))
#define PC_SP_DIRVAL	0

#define PD_GP_INMASK	0
#define PD_GP_OUTMASK	_BWR(3, 15)
#define PD_SP_MASK	0
#define PD_GP_OUTVAL	(_BW(3) | _BW(5) | _BW(9) | _BW(11))
#define PD_SP_DIRVAL	0

#else
#error Unknown NETVIA board version.
#endif

int board_pre_init(void)
{
	volatile immap_t *immap = (immap_t *) CFG_IMMR;
	volatile iop8xx_t *ioport = &immap->im_ioport;
	volatile cpm8xx_t *cpm = &immap->im_cpm;
	volatile memctl8xx_t *memctl = &immap->im_memctl;

	/* DSP0 chip select */
	memctl->memc_or4 = ((0xFFFFFFFFLU & ~(DSP_SIZE - 1)) | OR_CSNT_SAM | OR_BI | OR_ACS_DIV2 | OR_SETA | OR_TRLX);
	memctl->memc_br4 = ((DSP0_BASE & BR_BA_MSK) | BR_PS_16 | BR_V);

	/* DSP1 chip select */
	memctl->memc_or5 = ((0xFFFFFFFFLU & ~(DSP_SIZE - 1)) | OR_CSNT_SAM | OR_BI | OR_ACS_DIV2 | OR_SETA | OR_TRLX);
	memctl->memc_br5 = ((DSP1_BASE & BR_BA_MSK) | BR_PS_16 | BR_V);

	/* FPGA chip select */
	memctl->memc_or6 = ((0xFFFFFFFFLU & ~(FPGA_SIZE - 1)) | OR_BI | OR_SCY_1_CLK);
	memctl->memc_br6 = ((FPGA_BASE & BR_BA_MSK) | BR_PS_8 | BR_V);

#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
	/* NAND chip select */
	memctl->memc_or1 = ((0xFFFFFFFFLU & ~(NAND_SIZE - 1)) | OR_CSNT_SAM | OR_BI | OR_SCY_8_CLK | OR_EHTR | OR_TRLX);
	memctl->memc_br1 = ((NAND_BASE & BR_BA_MSK) | BR_PS_8 | BR_V);

	/* kill this chip select */
	memctl->memc_br2 &= ~BR_V;	/* invalid */

	/* external reg chip select */
	memctl->memc_or7 = ((0xFFFFFFFFLU & ~(ER_SIZE - 1)) | OR_BI | OR_SCY_4_CLK);
	memctl->memc_br7 = ((ER_BASE & BR_BA_MSK) | BR_PS_32 | BR_V);
#endif

	ioport->iop_padat	= PA_GP_OUTVAL;
	ioport->iop_paodr	= PA_ODR_VAL;
	ioport->iop_padir	= PA_GP_OUTMASK | PA_SP_DIRVAL;
	ioport->iop_papar	= PA_SP_MASK;

	cpm->cp_pbdat		= PB_GP_OUTVAL;
	cpm->cp_pbodr		= PB_ODR_VAL;
	cpm->cp_pbdir		= PB_GP_OUTMASK | PB_SP_DIRVAL;
	cpm->cp_pbpar		= PB_SP_MASK;

	ioport->iop_pcdat	= PC_GP_OUTVAL;
	ioport->iop_pcdir	= PC_GP_OUTMASK | PC_SP_DIRVAL;
	ioport->iop_pcso	= PC_SOVAL;
	ioport->iop_pcint	= PC_INTVAL;
	ioport->iop_pcpar	= PC_SP_MASK;

	ioport->iop_pddat	= PD_GP_OUTVAL;
	ioport->iop_pddir	= PD_GP_OUTMASK | PD_SP_DIRVAL;
	ioport->iop_pdpar	= PD_SP_MASK;

#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
	/* external register init */
	*(volatile uint *)ER_BASE = 0xFFFFFFFF;
#endif

	return 0;
}

#if (CONFIG_COMMANDS & CFG_CMD_NAND)

#include <linux/mtd/nand.h>

extern ulong nand_probe(ulong physadr);
extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];

void nand_init(void)
{
	unsigned long totlen = nand_probe(CFG_NAND_BASE);

	printf ("%4lu MB\n", totlen >> 20);
}
#endif
Commit	Line	Data
c609719b WD	1	/*
	2	* (C) Copyright 2000
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	/*
	25	* Pantelis Antoniou, Intracom S.A., panto@intracom.gr
	26	* U-Boot port on NetVia board
	27	*/
	28
	29	#include <common.h>
	30	#include "mpc8xx.h"
	31
993cad93 WD	32	/****************************************************************/
	33
	34	#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
	35	/* last value written to the external register; we cannot read back */
	36	unsigned int last_er_val;
	37	#endif
	38
	39	/****************************************************************/
	40
	41	/****************************************************************/
	42
c609719b WD	43	/* some sane bit macros */
	44	#define _BD(_b) (1U << (31-(_b)))
	45	#define _BDR(_l, _h) (((((1U << (31-(_l))) - 1) << 1) \| 1) & ~((1U << (31-(_h))) - 1))
	46
	47	#define _BW(_b) (1U << (15-(_b)))
	48	#define _BWR(_l, _h) (((((1U << (15-(_l))) - 1) << 1) \| 1) & ~((1U << (15-(_h))) - 1))
	49
	50	#define _BB(_b) (1U << (7-(_b)))
	51	#define _BBR(_l, _h) (((((1U << (7-(_l))) - 1) << 1) \| 1) & ~((1U << (7-(_h))) - 1))
	52
	53	#define _B(_b) _BD(_b)
	54	#define _BR(_l, _h) _BDR(_l, _h)
	55
993cad93	56	/****************************************************************/
c609719b WD	57
	58	#define _NOT_USED_ 0xFFFFFFFF
	59
993cad93	60	/****************************************************************/
c609719b WD	61
	62	#define CS_0000 0x00000000
	63	#define CS_0001 0x10000000
	64	#define CS_0010 0x20000000
	65	#define CS_0011 0x30000000
	66	#define CS_0100 0x40000000
	67	#define CS_0101 0x50000000
	68	#define CS_0110 0x60000000
	69	#define CS_0111 0x70000000
	70	#define CS_1000 0x80000000
	71	#define CS_1001 0x90000000
	72	#define CS_1010 0xA0000000
	73	#define CS_1011 0xB0000000
	74	#define CS_1100 0xC0000000
	75	#define CS_1101 0xD0000000
	76	#define CS_1110 0xE0000000
	77	#define CS_1111 0xF0000000
	78
	79	#define BS_0000 0x00000000
	80	#define BS_0001 0x01000000
	81	#define BS_0010 0x02000000
	82	#define BS_0011 0x03000000
	83	#define BS_0100 0x04000000
	84	#define BS_0101 0x05000000
	85	#define BS_0110 0x06000000
	86	#define BS_0111 0x07000000
	87	#define BS_1000 0x08000000
	88	#define BS_1001 0x09000000
	89	#define BS_1010 0x0A000000
	90	#define BS_1011 0x0B000000
	91	#define BS_1100 0x0C000000
	92	#define BS_1101 0x0D000000
	93	#define BS_1110 0x0E000000
	94	#define BS_1111 0x0F000000
	95
	96	#define A10_AAAA 0x00000000
	97	#define A10_AAA0 0x00200000
	98	#define A10_AAA1 0x00300000
	99	#define A10_000A 0x00800000
	100	#define A10_0000 0x00A00000
	101	#define A10_0001 0x00B00000
	102	#define A10_111A 0x00C00000
	103	#define A10_1110 0x00E00000
	104	#define A10_1111 0x00F00000
	105
	106	#define RAS_0000 0x00000000
	107	#define RAS_0001 0x00040000
	108	#define RAS_1110 0x00080000
	109	#define RAS_1111 0x000C0000
	110
	111	#define CAS_0000 0x00000000
	112	#define CAS_0001 0x00010000
	113	#define CAS_1110 0x00020000
	114	#define CAS_1111 0x00030000
	115
	116	#define WE_0000 0x00000000
	117	#define WE_0001 0x00004000
	118	#define WE_1110 0x00008000
	119	#define WE_1111 0x0000C000
	120
	121	#define GPL4_0000 0x00000000
	122	#define GPL4_0001 0x00001000
	123	#define GPL4_1110 0x00002000
	124	#define GPL4_1111 0x00003000
125
126	#define GPL5_0000 0x00000000
127	#define GPL5_0001 0x00000400
128	#define GPL5_1110 0x00000800
129	#define GPL5_1111 0x00000C00
130	#define LOOP 0x00000080
131
132	#define EXEN 0x00000040
133
134	#define AMX_COL 0x00000000
135	#define AMX_ROW 0x00000020
136	#define AMX_MAR 0x00000030
137
138	#define NA 0x00000008
139
140	#define UTA 0x00000004
141
142	#define TODT 0x00000002
143
144	#define LAST 0x00000001
145
146	const uint sdram_table[0x40] = {
147	/* RSS */
148	CS_0001 \| BS_1111 \| A10_AAAA \| RAS_0001 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA, /* ACT */
149	CS_1111 \| BS_1111 \| A10_0000 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA, /* NOP */
150	CS_0000 \| BS_1111 \| A10_0001 \| RAS_1111 \| CAS_0001 \| WE_1111 \| AMX_COL \| UTA, /* READ */
151	CS_0001 \| BS_0001 \| A10_1111 \| RAS_0001 \| CAS_1111 \| WE_0001 \| AMX_COL \| UTA, /* PALL */
152	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL, /* NOP */
153	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA \| TODT \| LAST, /* NOP */
154	_NOT_USED_, _NOT_USED_,
155
156	/* RBS */
157	CS_0001 \| BS_1111 \| A10_AAAA \| RAS_0001 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA, /* ACT */
158	CS_1111 \| BS_1111 \| A10_0000 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA, /* NOP */
159	CS_0001 \| BS_1111 \| A10_0001 \| RAS_1111 \| CAS_0001 \| WE_1111 \| AMX_COL \| UTA, /* READ */
160	CS_1111 \| BS_0000 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA, /* NOP */
161	CS_1111 \| BS_0000 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL, /* NOP */
162	CS_1111 \| BS_0000 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL, /* NOP */
163	CS_0001 \| BS_0001 \| A10_1111 \| RAS_0001 \| CAS_1111 \| WE_0001 \| AMX_COL, /* PALL */
164	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| TODT \| LAST, /* NOP */
165	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
166	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
167
168	/* WSS */
169	CS_0001 \| BS_1111 \| A10_AAAA \| RAS_0001 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA,
170	CS_1111 \| BS_1111 \| A10_0000 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL,
171	CS_0000 \| BS_0001 \| A10_0000 \| RAS_1111 \| CAS_0001 \| WE_0000 \| AMX_COL \| UTA,
172	CS_0001 \| BS_1111 \| A10_1111 \| RAS_0001 \| CAS_1111 \| WE_0001 \| AMX_COL \| UTA \| TODT \| LAST,
173	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
174
175	/* WBS */
176	CS_0001 \| BS_1111 \| A10_AAAA \| RAS_0001 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA, /* ACT */
177	CS_1111 \| BS_1111 \| A10_0000 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL, /* NOP */
178	CS_0001 \| BS_0000 \| A10_0000 \| RAS_1111 \| CAS_0001 \| WE_0000 \| AMX_COL, /* WRITE */
179	CS_1111 \| BS_0000 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL, /* NOP */
180	CS_1111 \| BS_0000 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL, /* NOP */
181	CS_1111 \| BS_0001 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA, /* NOP */
182	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA, /* NOP */
183	CS_0001 \| BS_1111 \| A10_1111 \| RAS_0001 \| CAS_1111 \| WE_0001 \| AMX_COL \| UTA, /* PALL */
184	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| UTA \| TODT \| LAST, /* NOP */
185	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
186	_NOT_USED_, _NOT_USED_, _NOT_USED_,
187
188	/* UPT */
189	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL, /* NOP */
190	CS_0001 \| BS_1111 \| A10_1111 \| RAS_0001 \| CAS_0001 \| WE_1111 \| AMX_COL \| LOOP,
191	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL,
192	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL,
193	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| LOOP,
194	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| LAST,
195	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
196	_NOT_USED_, _NOT_USED_,
197
198	/* EXC */
199	CS_0001 \| BS_1111 \| A10_1111 \| RAS_0001 \| CAS_1111 \| WE_0001 \| AMX_COL,
200	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1111 \| AMX_COL \| TODT \| LAST,
201
202	/* REG */
203	CS_1111 \| BS_1111 \| A10_1111 \| RAS_1111 \| CAS_1111 \| WE_1110 \| AMX_MAR,
204	CS_0001 \| BS_1111 \| A10_0001 \| RAS_0001 \| CAS_0001 \| WE_0001 \| AMX_MAR \| TODT \| LAST,
205	};
206
207	/* ------------------------------------------------------------------------- */
208
209
210	/*
211	* Check Board Identity:
212	*
213	* Test ETX ID string (ETX_xxx...)
214	*
215	* Return 1 always.
216	*/
217
218	int checkboard(void)
219	{
993cad93 WD	220	#if !defined(CONFIG_NETVIA_VERSION) \|\| CONFIG_NETVIA_VERSION == 1
	221	printf ("NETVIA v1\n");
	222	#else
	223	printf ("NETVIA v2+\n");
	224	#endif
c609719b WD	225	return (0);
	226	}
	227
	228	/* ------------------------------------------------------------------------- */
	229
	230	/* 0xC8 = 0b11001000 , CAS3, >> 2 = 0b00 11 0 010 */
	231	#define MAR_SDRAM_INIT 0x000000C8LU
	232
	233	#define MCR_OP(x) ((unsigned long)((x) & 3) << (31-1))
	234	#define MCR_OP_MASK MCR_OP(3)
	235
	236	#define MCR_UM(x) ((unsigned long)((x) & 1) << (31 - 8))
	237	#define MCR_UM_MASK MCR_UM(1)
	238	#define MCR_UM_UPMA MCR_UM(0)
	239	#define MCR_UM_UPMB MCR_UM(1)
	240
	241	#define MCR_MB(x) ((unsigned long)((x) & 7) << (31 - 18))
	242	#define MCR_MB_MASK MCR_MB(7)
	243	#define MCR_MB_CS(x) MCR_MB(x)
	244
	245	#define MCR_MCLF(x) ((unsigned long)((x) & 15) << (31 - 23))
	246	#define MCR_MCLF_MASK MCR_MCLF(15)
	247
	248	long int initdram(int board_type)
	249	{
	250	volatile immap_t immap = (immap_t ) CFG_IMMR;
	251	volatile memctl8xx_t *memctl = &immap->im_memctl;
	252	long int size;
	253
	254	upmconfig(UPMA, (uint *) sdram_table, sizeof(sdram_table) / sizeof(uint));
	255
	256	/*
	257	* Preliminary prescaler for refresh
	258	*/
	259	memctl->memc_mptpr = CFG_MPTPR_1BK_8K;
	260
	261	memctl->memc_mar = MAR_SDRAM_INIT; /* 32-bit address to be output on the address bus if AMX = 0b11 */
	262
	263	/*
	264	* Map controller bank 3 to the SDRAM bank at preliminary address.
	265	*/
	266	memctl->memc_or3 = CFG_OR3_PRELIM;
	267	memctl->memc_br3 = CFG_BR3_PRELIM;
	268
	269	memctl->memc_mamr = CFG_MAMR_9COL & ~MAMR_PTAE; /* no refresh yet */
	270
	271	udelay(200);
	272
	273	/* perform SDRAM initialisation sequence */
	274	memctl->memc_mcr = MCR_OP_RUN \| MCR_UM_UPMA \| MCR_MB_CS3 \| MCR_MCLF(1) \| MCR_MAD(0x3C); /* precharge all */
	275	udelay(1);
	276	memctl->memc_mcr = MCR_OP_RUN \| MCR_UM_UPMA \| MCR_MB_CS3 \| MCR_MCLF(0) \| MCR_MAD(0x30); /* refresh 16 times(0) */
	277	udelay(1);
	278	memctl->memc_mcr = MCR_OP_RUN \| MCR_UM_UPMA \| MCR_MB_CS3 \| MCR_MCLF(1) \| MCR_MAD(0x3E); /* exception program (write mar) */
	279	udelay(1);
	280
	281	memctl->memc_mamr \|= MAMR_PTAE; /* enable refresh */
	282
	283	udelay(1000);
	284
	285	memctl->memc_mamr = CFG_MAMR_9COL;
	286
	287	size = SDRAM_MAX_SIZE;
	288
289	udelay(10000);
290
c609719b WD	291	return (size);
	292	}
	293
	294	/* ------------------------------------------------------------------------- */
	295
	296	int misc_init_r(void)
	297	{
993cad93 WD	298	#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
	299	last_er_val = 0xffffffff;
	300	#endif
c609719b WD	301	return(0);
	302	}
	303
	304	/* ------------------------------------------------------------------------- */
	305
993cad93 WD	306	/* GP = general purpose, SP = special purpose (on chip peripheral) */
993cad93 WD	307
c609719b	308	/* bits that can have a special purpose or can be configured as inputs/outputs */
c609719b	309	#define PA_GP_INMASK 0
993cad93 WD	310	#define PA_GP_OUTMASK (_BW(5) \| _BWR(14, 15))
	311	#define PA_SP_MASK (_BW(4) \| _BWR(6, 13))
	312	#define PA_ODR_VAL 0
c609719b	313	#define PA_GP_OUTVAL _BW(5)
993cad93	314	#define PA_SP_DIRVAL 0
c609719b	315
993cad93 WD	316	#define PB_GP_INMASK _B(28)
	317	#define PB_GP_OUTMASK (_BR(16, 19) \| _BR(26, 27) \| _BR(29, 31))
	318	#define PB_SP_MASK _BR(22, 25)
c609719b	319	#define PB_ODR_VAL 0
993cad93 WD	320	#define PB_GP_OUTVAL (_BR(16, 19) \| _BR(26, 27) \| _BR(29, 31))
	321	#define PB_SP_DIRVAL 0
	322
	323	#if !defined(CONFIG_NETVIA_VERSION) \|\| CONFIG_NETVIA_VERSION == 1
	324
c609719b WD	325	#define PC_GP_INMASK (_BWR(5, 7) \| _BWR(9, 10) \| _BW(13))
c609719b WD	326	#define PC_GP_OUTMASK _BW(12)
993cad93 WD	327	#define PC_SP_MASK (_BW(4) \| _BW(8))
	328	#define PC_SOVAL 0
	329	#define PC_INTVAL 0
c609719b	330	#define PC_GP_OUTVAL 0
993cad93	331	#define PC_SP_DIRVAL 0
c609719b	332
c609719b WD	333	#define PD_GP_INMASK 0
c609719b WD	334	#define PD_GP_OUTMASK _BWR(3, 15)
993cad93	335	#define PD_SP_MASK 0
c609719b	336	#define PD_GP_OUTVAL (_BW(3) \| _BW(5) \| _BW(7) \| _BWR(8, 15))
993cad93 WD	337	#define PD_SP_DIRVAL 0
	338
	339	#elif CONFIG_NETVIA_VERSION >= 2
	340
	341	#define PC_GP_INMASK (_BW(5) \| _BW(7) \| _BWR(9, 11) \| _BWR(13, 15))
	342	#define PC_GP_OUTMASK (_BW(6) \| _BW(12))
	343	#define PC_SP_MASK (_BW(4) \| _BW(8))
	344	#define PC_SOVAL 0
	345	#define PC_INTVAL _BW(7)
	346	#define PC_GP_OUTVAL (_BW(6) \| _BW(12))
	347	#define PC_SP_DIRVAL 0
	348
	349	#define PD_GP_INMASK 0
	350	#define PD_GP_OUTMASK _BWR(3, 15)
	351	#define PD_SP_MASK 0
	352	#define PD_GP_OUTVAL (_BW(3) \| _BW(5) \| _BW(9) \| _BW(11))
	353	#define PD_SP_DIRVAL 0
	354
	355	#else
	356	#error Unknown NETVIA board version.
	357	#endif
c609719b WD	358
	359	int board_pre_init(void)
	360	{
993cad93 WD	361	volatile immap_t immap = (immap_t ) CFG_IMMR;
	362	volatile iop8xx_t *ioport = &immap->im_ioport;
	363	volatile cpm8xx_t *cpm = &immap->im_cpm;
	364	volatile memctl8xx_t *memctl = &immap->im_memctl;
	365
	366	/* DSP0 chip select */
	367	memctl->memc_or4 = ((0xFFFFFFFFLU & ~(DSP_SIZE - 1)) \| OR_CSNT_SAM \| OR_BI \| OR_ACS_DIV2 \| OR_SETA \| OR_TRLX);
	368	memctl->memc_br4 = ((DSP0_BASE & BR_BA_MSK) \| BR_PS_16 \| BR_V);
	369
	370	/* DSP1 chip select */
	371	memctl->memc_or5 = ((0xFFFFFFFFLU & ~(DSP_SIZE - 1)) \| OR_CSNT_SAM \| OR_BI \| OR_ACS_DIV2 \| OR_SETA \| OR_TRLX);
	372	memctl->memc_br5 = ((DSP1_BASE & BR_BA_MSK) \| BR_PS_16 \| BR_V);
	373
	374	/* FPGA chip select */
	375	memctl->memc_or6 = ((0xFFFFFFFFLU & ~(FPGA_SIZE - 1)) \| OR_BI \| OR_SCY_1_CLK);
	376	memctl->memc_br6 = ((FPGA_BASE & BR_BA_MSK) \| BR_PS_8 \| BR_V);
	377
	378	#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
	379	/* NAND chip select */
	380	memctl->memc_or1 = ((0xFFFFFFFFLU & ~(NAND_SIZE - 1)) \| OR_CSNT_SAM \| OR_BI \| OR_SCY_8_CLK \| OR_EHTR \| OR_TRLX);
	381	memctl->memc_br1 = ((NAND_BASE & BR_BA_MSK) \| BR_PS_8 \| BR_V);
	382
	383	/* kill this chip select */
	384	memctl->memc_br2 &= ~BR_V; /* invalid */
	385
	386	/* external reg chip select */
	387	memctl->memc_or7 = ((0xFFFFFFFFLU & ~(ER_SIZE - 1)) \| OR_BI \| OR_SCY_4_CLK);
	388	memctl->memc_br7 = ((ER_BASE & BR_BA_MSK) \| BR_PS_32 \| BR_V);
	389	#endif
	390
	391	ioport->iop_padat = PA_GP_OUTVAL;
	392	ioport->iop_paodr = PA_ODR_VAL;
	393	ioport->iop_padir = PA_GP_OUTMASK \| PA_SP_DIRVAL;
	394	ioport->iop_papar = PA_SP_MASK;
	395
	396	cpm->cp_pbdat = PB_GP_OUTVAL;
	397	cpm->cp_pbodr = PB_ODR_VAL;
	398	cpm->cp_pbdir = PB_GP_OUTMASK \| PB_SP_DIRVAL;
	399	cpm->cp_pbpar = PB_SP_MASK;
	400
	401	ioport->iop_pcdat = PC_GP_OUTVAL;
	402	ioport->iop_pcdir = PC_GP_OUTMASK \| PC_SP_DIRVAL;
	403	ioport->iop_pcso = PC_SOVAL;
	404	ioport->iop_pcint = PC_INTVAL;
	405	ioport->iop_pcpar = PC_SP_MASK;
	406
	407	ioport->iop_pddat = PD_GP_OUTVAL;
	408	ioport->iop_pddir = PD_GP_OUTMASK \| PD_SP_DIRVAL;
	409	ioport->iop_pdpar = PD_SP_MASK;
	410
	411	#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
	412	/* external register init */
	413	(volatile uint )ER_BASE = 0xFFFFFFFF;
	414	#endif
c609719b WD	415
	416	return 0;
	417	}
	418
993cad93 WD	419	#if (CONFIG_COMMANDS & CFG_CMD_NAND)
	420
	421	#include <linux/mtd/nand.h>
	422
a43278a4	423	extern ulong nand_probe(ulong physadr);
993cad93 WD	424	extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
	425
	426	void nand_init(void)
	427	{
a43278a4 WD	428	unsigned long totlen = nand_probe(CFG_NAND_BASE);
	429
	430	printf ("%4lu MB\n", totlen >> 20);
993cad93 WD	431	}
993cad93 WD	432	#endif