* Patch by Klaus Heydeck, 13 Mar 2003:

  Add support for KUP4X Board

1 files changed, 311 insertions, 0 deletions

diff --git a/board/kup/kup4x/kup4x.c b/board/kup/kup4x/kup4x.c
new file mode 100644
index 0000000..86b749d
--- /dev/null
+++ b/board/kup/kup4x/kup4x.c
@@ -0,0 +1,311 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.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
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+#include "../common/kup.h"
+#ifdef CONFIG_KUP4K_LOGO
+/* #include "s1d13706.h" */
+#endif
+
+#define KUP4X_USB
+
+
+typedef struct {
+	volatile unsigned char *VmemAddr;
+	volatile unsigned char *RegAddr;
+} FB_INFO_S1D13xxx;
+
+/* ------------------------------------------------------------------------- */
+
+int usb_init_kup4x (void);
+
+
+#ifdef CONFIG_KUP4K_LOGO
+void lcd_logo (bd_t * bd);
+#endif
+
+/* ------------------------------------------------------------------------- */
+
+#define	_NOT_USED_	0xFFFFFFFF
+
+const uint sdram_table[] = {
+	/*
+	 * Single Read. (Offset 0 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00,
+	0x1FF77C47,		/* last */
+
+	/*
+	 * SDRAM Initialization (offset 5 in UPMA RAM)
+	 *
+	 * This is no UPM entry point. The following definition uses
+	 * the remaining space to establish an initialization
+	 * sequence, which is executed by a RUN command.
+	 *
+	 */
+	0x1FF77C35, 0xEFEABC34, 0x1FB57C35,	/* last */
+
+	/*
+	 * Burst Read. (Offset 8 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00,
+	0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47,	/* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/*
+	 * Single Write. (Offset 18 in UPMA RAM)
+	 */
+	0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47,	/* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/*
+	 * Burst Write. (Offset 20 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00,
+	0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47,	/* last */
+	_NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/*
+	 * Refresh  (Offset 30 in UPMA RAM)
+	 */
+	0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+	0xFFFFFC84, 0xFFFFFC07,	/* last */
+	_NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/*
+	 * Exception. (Offset 3c in UPMA RAM)
+	 */
+	0x7FFFFC07,		/* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+	uchar *latch, rev, mod;
+
+	/*
+	 * Init ChipSelect #4 (CAN + HW-Latch)
+	 */
+	memctl->memc_or4 = 0xFFFF8926;
+	memctl->memc_br4 = 0x90000401;
+
+	latch = (uchar *) 0x90000200;
+	rev = (*latch & 0xF8) >> 3;
+	mod = (*latch & 0x03);
+	printf ("Board: KUP4X Rev %d.%d SN: %s\n", rev, mod,
+		getenv ("ethaddr"));
+	return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+	long int size_b0 = 0;
+	long int size_b1 = 0;
+	long int size_b2 = 0;
+	long int size_b3 = 0;
+
+	upmconfig (UPMA, (uint *) sdram_table,
+		   sizeof (sdram_table) / sizeof (uint));
+	/*
+	 * Preliminary prescaler for refresh (depends on number of
+	 * banks): This value is selected for four cycles every 62.4 us
+	 * with two SDRAM banks or four cycles every 31.2 us with one
+	 * bank. It will be adjusted after memory sizing.
+	 */
+	memctl->memc_mptpr = CFG_MPTPR;
+
+	memctl->memc_mar = 0x00000088;
+
+	/*
+	 * Map controller banks 1 and 2 to the SDRAM banks 2 and 3 at
+	 * preliminary addresses - these have to be modified after the
+	 * SDRAM size has been determined.
+	 */
+/*	memctl->memc_or1 = CFG_OR1_PRELIM;	*/
+/*	memctl->memc_br1 = CFG_BR1_PRELIM;	*/
+
+/*	memctl->memc_or2 = CFG_OR2_PRELIM;	*/
+/*	memctl->memc_br2 = CFG_BR2_PRELIM;	*/
+
+	memctl->memc_mamr = CFG_MAMR & (~(MAMR_PTAE));	/* no refresh yet */
+
+	udelay (200);
+
+	/* perform SDRAM initializsation sequence */
+
+	memctl->memc_mcr = 0x80002105;	/* SDRAM bank 0 */
+	udelay (1);
+	memctl->memc_mcr = 0x80002830;	/* SDRAM bank 0 - execute twice */
+	udelay (1);
+	memctl->memc_mcr = 0x80002106;	/* SDRAM bank 0 - RUN MRS Pattern from loc 6 */
+	udelay (1);
+
+	memctl->memc_mcr = 0x80004105;	/* SDRAM bank 1 */
+	udelay (1);
+	memctl->memc_mcr = 0x80004830;	/* SDRAM bank 1 - execute twice */
+	udelay (1);
+	memctl->memc_mcr = 0x80004106;	/* SDRAM bank 1 - RUN MRS Pattern from loc 6 */
+	udelay (1);
+
+	memctl->memc_mcr = 0x80006105;	/* SDRAM bank 2 */
+	udelay (1);
+	memctl->memc_mcr = 0x80006830;	/* SDRAM bank 2 - execute twice */
+	udelay (1);
+	memctl->memc_mcr = 0x80006106;	/* SDRAM bank 2 - RUN MRS Pattern from loc 6 */
+	udelay (1);
+
+	memctl->memc_mcr = 0x8000C105;	/* SDRAM bank 2 */
+	udelay (1);
+	memctl->memc_mcr = 0x8000C830;	/* SDRAM bank 2 - execute twice */
+	udelay (1);
+	memctl->memc_mcr = 0x8000C106;	/* SDRAM bank 2 - RUN MRS Pattern from loc 6 */
+	udelay (1);
+
+	memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */
+	udelay (1000);
+#if 0				/* 4 x 8MB */
+	size_b0 = 0x00800000;
+	size_b1 = 0x00800000;
+	size_b2 = 0x00800000;
+	size_b3 = 0x00800000;
+	memctl->memc_mptpr = CFG_MPTPR;
+	udelay (1000);
+	memctl->memc_or1 = 0xFF800A00;
+	memctl->memc_br1 = 0x00000081;
+	memctl->memc_or2 = 0xFF000A00;
+	memctl->memc_br2 = 0x00800081;
+	memctl->memc_or3 = 0xFE000A00;
+	memctl->memc_br3 = 0x01000081;
+	memctl->memc_or6 = 0xFE000A00;
+	memctl->memc_br6 = 0x01800081;
+#else  /* 4 x 16 MB */
+	size_b0 = 0x01000000;
+	size_b1 = 0x01000000;
+	size_b2 = 0x01000000;
+	size_b3 = 0x01000000;
+	memctl->memc_mptpr = CFG_MPTPR;
+	udelay (1000);
+	memctl->memc_or1 = 0xFF000A00;
+	memctl->memc_br1 = 0x00000081;
+	memctl->memc_or2 = 0xFE000A00;
+	memctl->memc_br2 = 0x01000081;
+	memctl->memc_or3 = 0xFD000A00;
+	memctl->memc_br3 = 0x02000081;
+	memctl->memc_or6 = 0xFC000A00;
+	memctl->memc_br6 = 0x03000081;
+#endif
+	udelay (10000);
+
+	return (size_b0 + size_b1 + size_b2 + size_b3);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+#if 0
+static long int dram_size (long int mamr_value, long int *base,
+			   long int maxsize)
+{
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+	volatile long int *addr;
+	ulong cnt, val;
+	ulong save[32];		/* to make test non-destructive */
+	unsigned char i = 0;
+
+	memctl->memc_mamr = mamr_value;
+
+	for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
+		addr = base + cnt;	/* pointer arith! */
+
+		save[i++] = *addr;
+		*addr = ~cnt;
+	}
+
+	/* write 0 to base address */
+	addr = base;
+	save[i] = *addr;
+	*addr = 0;
+
+	/* check at base address */
+	if ((val = *addr) != 0) {
+		*addr = save[i];
+		return (0);
+	}
+
+	for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
+		addr = base + cnt;	/* pointer arith! */
+
+		val = *addr;
+		*addr = save[--i];
+
+		if (val != (~cnt)) {
+			return (cnt * sizeof (long));
+		}
+	}
+	return (maxsize);
+}
+#endif
+
+int misc_init_r (void)
+{
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+
+#ifdef CONFIG_IDE_LED
+	/* Configure PA8 as output port */
+	immap->im_ioport.iop_padir |= 0x80;
+	immap->im_ioport.iop_paodr |= 0x80;
+	immap->im_ioport.iop_papar &= ~0x80;
+	immap->im_ioport.iop_padat |= 0x80;	/* turn it off */
+#endif
+#ifdef KUP4X_USB
+	usb_init_kup4x ();
+#endif
+	setenv ("hw", "4x");
+	poweron_key ();
+	return (0);
+}