| /* |
| * (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_early_init_f (void) |
| { |
| volatile t_ep_regs *regs = (t_ep_regs *) CONFIG_SYS_REGS_BASE; |
| volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; |
| volatile memctl8260_t *memctl = &immap->im_memctl; |
| |
| memctl->memc_br4 = CONFIG_SYS_BR4_PRELIM; |
| memctl->memc_or4 = CONFIG_SYS_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 *) CONFIG_SYS_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 *) CONFIG_SYS_REGS_BASE; |
| uint major = 0, minor = 0; |
| |
| switch (regs->bcsr0) { |
| case 0x02: |
| major = 1; |
| break; |
| case 0x03: |
| major = 1; |
| minor = 1; |
| break; |
| case 0x06: |
| major = 1; |
| minor = 3; |
| break; |
| default: |
| break; |
| } |
| printf ("Board: Embedded Planet EP8260, Revision %d.%d\n", |
| major, minor); |
| return 0; |
| } |
| |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| |
| phys_size_t initdram (int board_type) |
| { |
| volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; |
| volatile memctl8260_t *memctl = &immap->im_memctl; |
| volatile uchar c = 0; |
| volatile uchar *ramaddr = (uchar *) (CONFIG_SYS_SDRAM_BASE) + 0x110; |
| |
| /* |
| ulong psdmr = CONFIG_SYS_PSDMR; |
| #ifdef CONFIG_SYS_LSDRAM |
| ulong lsdmr = CONFIG_SYS_LSDMR; |
| #endif |
| */ |
| long size = CONFIG_SYS_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 CONFIG_SYS_SDRAM_BASE. |
| */ |
| |
| memctl->memc_psrt = CONFIG_SYS_PSRT; |
| memctl->memc_mptpr = CONFIG_SYS_MPTPR; |
| |
| memctl->memc_psdmr = (ulong) CONFIG_SYS_PSDMR | PSDMR_OP_PREA; |
| *ramaddr = c; |
| |
| memctl->memc_psdmr = (ulong) CONFIG_SYS_PSDMR | PSDMR_OP_CBRR; |
| for (i = 0; i < 8; i++) |
| *ramaddr = c; |
| |
| memctl->memc_psdmr = (ulong) CONFIG_SYS_PSDMR | PSDMR_OP_MRW; |
| *ramaddr = c; |
| |
| memctl->memc_psdmr = (ulong) CONFIG_SYS_PSDMR | PSDMR_OP_NORM | PSDMR_RFEN; |
| *ramaddr = c; |
| |
| #ifndef CONFIG_SYS_RAMBOOT |
| #ifdef CONFIG_SYS_LSDRAM |
| size += CONFIG_SYS_SDRAM1_SIZE; |
| ramaddr = (uchar *) (CONFIG_SYS_SDRAM1_BASE) + 0x8c; |
| memctl->memc_lsrt = CONFIG_SYS_LSRT; |
| |
| memctl->memc_lsdmr = (ulong) CONFIG_SYS_LSDMR | PSDMR_OP_PREA; |
| *ramaddr = c; |
| |
| memctl->memc_lsdmr = (ulong) CONFIG_SYS_LSDMR | PSDMR_OP_CBRR; |
| for (i = 0; i < 8; i++) |
| *ramaddr = c; |
| |
| memctl->memc_lsdmr = (ulong) CONFIG_SYS_LSDMR | PSDMR_OP_MRW; |
| *ramaddr = c; |
| |
| memctl->memc_lsdmr = (ulong) CONFIG_SYS_LSDMR | PSDMR_OP_NORM | PSDMR_RFEN; |
| *ramaddr = c; |
| #endif /* CONFIG_SYS_LSDRAM */ |
| #endif /* CONFIG_SYS_RAMBOOT */ |
| return (size * 1024 * 1024); |
| } |
