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Diffstat (limited to 'board/netvia/netvia.c')
| -rwxr-xr-x | board/netvia/netvia.c | 432 |
1 files changed, 432 insertions, 0 deletions
diff --git a/board/netvia/netvia.c b/board/netvia/netvia.c new file mode 100755 index 0000000..fb7f770 --- /dev/null +++ b/board/netvia/netvia.c @@ -0,0 +1,432 @@ +/* + * (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 |