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u-boot/board/netvia/netvia.c
wdenk c837dcb1a3 * The PS/2 mux on the BMS2003 board needs 450 ms after power on 
before we can access it; add delay in case we are faster (with no
  CF card inserted)

* Cleanup of some init functions

* Make sure SCC Ethernet is always stopped by the time we boot Linux
  to avoid Linux crashes by early packets coming in.

* Accelerate flash accesses on LWMON board by using buffered writes
2004-01-20 23:12:12 +00:00

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/*
* (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_early_init_f(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
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