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Diffstat (limited to 'board/ep8260/ep8260.c')
| -rw-r--r-- | board/ep8260/ep8260.c | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/board/ep8260/ep8260.c b/board/ep8260/ep8260.c new file mode 100644 index 0000000..dc33edb --- /dev/null +++ b/board/ep8260/ep8260.c @@ -0,0 +1,310 @@ +/* + * (C) Copyright 2001, 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 + * Frank Panno <fpanno@delphintech.com>, Delphin Technology AG + * + * 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 <mpc8260.h> +#include "ep8260.h" +/* + * I/O Port configuration table + * + * if conf is 1, then that port pin will be configured at boot time + * according to the five values podr/pdir/ppar/psor/pdat for that entry + */ + +const iop_conf_t iop_conf_tab[4][32] = { + + /* Port A configuration */ + { /* conf ppar psor pdir podr pdat */ + /* PA31 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA30 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA29 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA28 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA27 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA26 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA25 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA24 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA23 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA22 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA21 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA20 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA19 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA18 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA17 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA16 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA15 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA14 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA13 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA12 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA11 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA10 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PA9 */ { 0, 1, 0, 1, 0, 0 }, /* */ + /* PA8 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */ + /* PA6 */ { 0, 0, 0, 1, 0, 0 }, /* PA6 */ + /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */ + /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */ + /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */ + /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */ + /* PA1 */ { 0, 0, 0, 1, 0, 0 }, /* PA1 */ + /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */ + }, + + /* Port B configuration */ + { /* conf ppar psor pdir podr pdat */ + /* PB31 */ { 0, 1, 0, 1, 0, 0 }, /* */ + /* PB30 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PB29 */ { 0, 1, 1, 1, 0, 0 }, /* */ + /* PB28 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PB27 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PB26 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PB25 */ { 0, 1, 0, 1, 0, 0 }, /* */ + /* PB24 */ { 0, 1, 0, 1, 0, 0 }, /* */ + /* PB23 */ { 0, 1, 0, 1, 0, 0 }, /* */ + /* PB22 */ { 0, 1, 0, 1, 0, 0 }, /* */ + /* PB21 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PB20 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PB19 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PB18 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PB17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_DV */ + /* PB16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_ER */ + /* PB15 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_ER */ + /* PB14 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_EN */ + /* PB13 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII COL */ + /* PB12 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII CRS */ + /* PB11 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[3] */ + /* PB10 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[2] */ + /* PB9 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[1] */ + /* PB8 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[0] */ + /* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */ + /* PB6 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[1] */ + /* PB5 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[2] */ + /* PB4 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[3] */ + /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ + }, + + /* Port C */ + { /* conf ppar psor pdir podr pdat */ + /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */ + /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */ + /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* */ + /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */ + /* PC27 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[0] */ + /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */ + /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */ + /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */ + /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* */ + /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PC19 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PC18 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PC17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII CLK15 */ + /* PC16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII CLK16 */ + /* PC15 */ { 0, 0, 0, 1, 0, 0 }, /* PC15 */ + /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */ + /* PC12 */ { 0, 0, 0, 1, 0, 0 }, /* PC12 */ + /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* PC11 */ + /* PC10 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PC9 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */ + /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */ + /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */ + /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */ + /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */ + /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */ + /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* */ + /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* */ + /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* */ + }, + + /* Port D */ + { /* conf ppar psor pdir podr pdat */ + /* PD31 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PD30 */ { 0, 1, 1, 1, 0, 0 }, /* */ + /* PD29 */ { 0, 1, 0, 1, 0, 0 }, /* */ + /* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* PD28 */ + /* PD27 */ { 0, 0, 0, 1, 0, 0 }, /* PD27 */ + /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */ + /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */ + /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */ + /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */ + /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */ + /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */ + /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */ + /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */ + /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */ + /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* */ + /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* */ + /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */ + /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */ + /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */ + /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */ + /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */ + /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */ + /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */ + /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC1 RXD */ + /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */ + /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */ + /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */ + /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */ + /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ + /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ + } +}; + +/* ------------------------------------------------------------------------- */ + +/* + * Setup CS4 to enable the Board Control/Status registers. + * Otherwise the smcs won't work. +*/ +int board_pre_init (void) +{ + volatile t_ep_regs *regs = (t_ep_regs*)CFG_REGS_BASE; + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile memctl8260_t *memctl = &immap->im_memctl; + memctl->memc_br4 = CFG_BR4_PRELIM; + memctl->memc_or4 = CFG_OR4_PRELIM; + regs->bcsr1 = 0x62; /* to enable terminal on SMC1 */ + regs->bcsr2 = 0x30; /* enable NVRAM and writing FLASH */ + return 0; +} + +void +reset_phy(void) +{ + volatile t_ep_regs *regs = (t_ep_regs*)CFG_REGS_BASE; + regs->bcsr4 = 0xC0; +} + +/* + * Check Board Identity: + * I don' know, how the next board revisions will be coded. + * Thats why its a static interpretation ... +*/ + +int +checkboard(void) +{ + volatile t_ep_regs *regs = (t_ep_regs*)CFG_REGS_BASE; + uint major=0, minor=0; + switch (regs->bcsr0) { + case 0x02: major = 1; break; + case 0x03: major = 1; minor = 1; break; + default: break; + } + printf ("Board: Embedded Planet EP8260, Revision %d.%d\n", + major, minor); + return 0; +} + + +/* ------------------------------------------------------------------------- */ + + +long int +initdram(int board_type) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile memctl8260_t *memctl = &immap->im_memctl; + volatile uchar c = 0; + volatile uchar *ramaddr = (uchar *)(CFG_SDRAM_BASE) + 0x110; +/* + ulong psdmr = CFG_PSDMR; +#ifdef CFG_LSDRAM + ulong lsdmr = CFG_LSDMR; +#endif +*/ + long size = CFG_SDRAM0_SIZE; + int i; + + +/* +* Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35): +* +* "At system reset, initialization software must set up the +* programmable parameters in the memory controller banks registers +* (ORx, BRx, P/LSDMR). After all memory parameters are configured, +* system software should execute the following initialization sequence +* for each SDRAM device. +* +* 1. Issue a PRECHARGE-ALL-BANKS command +* 2. Issue eight CBR REFRESH commands +* 3. Issue a MODE-SET command to initialize the mode register +* +* The initial commands are executed by setting P/LSDMR[OP] and +* accessing the SDRAM with a single-byte transaction." +* +* The appropriate BRx/ORx registers have already been set when we +* get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE. +*/ + + memctl->memc_psrt = CFG_PSRT; + memctl->memc_mptpr = CFG_MPTPR; + + memctl->memc_psdmr = (ulong) CFG_PSDMR | PSDMR_OP_PREA; + *ramaddr = c; + + memctl->memc_psdmr = (ulong) CFG_PSDMR | PSDMR_OP_CBRR; + for (i = 0; i < 8; i++) + *ramaddr = c; + + memctl->memc_psdmr = (ulong) CFG_PSDMR | PSDMR_OP_MRW; + *ramaddr = c; + + memctl->memc_psdmr = (ulong) CFG_PSDMR | PSDMR_OP_NORM | PSDMR_RFEN; + *ramaddr = c; + +#ifndef CFG_RAMBOOT +#ifdef CFG_LSDRAM + size += CFG_SDRAM1_SIZE; + ramaddr = (uchar *)(CFG_SDRAM1_BASE) + 0x8c; + memctl->memc_lsrt = CFG_LSRT; + + memctl->memc_lsdmr = (ulong) CFG_LSDMR | PSDMR_OP_PREA; + *ramaddr = c; + + memctl->memc_lsdmr = (ulong) CFG_LSDMR | PSDMR_OP_CBRR; + for (i = 0; i < 8; i++) + *ramaddr = c; + + memctl->memc_lsdmr = (ulong) CFG_LSDMR | PSDMR_OP_MRW; + *ramaddr = c; + + memctl->memc_lsdmr = (ulong) CFG_LSDMR | PSDMR_OP_NORM | PSDMR_RFEN; + *ramaddr = c; +#endif /* CFG_LSDRAM */ +#endif /* CFG_RAMBOOT */ + return (size * 1024 * 1024); +} + |