/* * (C) Copyright 2001, 2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2002 * Frank Panno , Delphin Technology AG * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #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); }