Initial revision

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);
+}
+