* Patch by Klaus Heydeck, 13 Mar 2003:

  Add support for KUP4X Board

1 files changed, 458 insertions, 0 deletions

diff --git a/board/kup/kup4k/kup4k.c b/board/kup/kup4k/kup4k.c
new file mode 100644
index 0000000..8bed3d5
--- /dev/null
+++ b/board/kup/kup4k/kup4k.c
@@ -0,0 +1,458 @@
+/*
+ * (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
+
+#undef DEBUG
+#ifdef  DEBUG
+# define debugk(fmt,args...)    printf(fmt ,##args)
+#else
+# define debugk(fmt,args...)
+#endif
+
+typedef struct {
+	volatile unsigned char *VmemAddr;
+	volatile unsigned char *RegAddr;
+} FB_INFO_S1D13xxx;
+
+
+/* ------------------------------------------------------------------------- */
+
+#if 0
+static long int dram_size (long int, long int *, long int);
+#endif
+
+#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;
+	uchar *latch,rev,mod;
+
+	/*
+	 * Init ChipSelect #4 (CAN + HW-Latch)
+	 */
+	immap->im_memctl.memc_or4 = 0xFFFF8926;
+	immap->im_memctl.memc_br4 = 0x90000401;
+
+	latch=(uchar *)0x90000200;
+	rev = (*latch & 0xF8) >> 3;
+	mod=(*latch & 0x03);
+	printf ("Board: KUP4K 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;
+
+	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_mamr |= MAMR_PTAE;	/* enable refresh */
+	udelay (1000);
+
+#if 0							/* 3 x 8MB */
+	size_b0 = 0x00800000;
+	size_b1 = 0x00800000;
+	size_b2 = 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;
+#else							/* 3 x 16 MB */
+	size_b0 = 0x01000000;
+	size_b1 = 0x01000000;
+	size_b2 = 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 = 0xFC000A00;
+	memctl->memc_br3 = 0x02000081;
+#endif
+
+	udelay (10000);
+
+	return (size_b0 + size_b1 + size_b2);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * 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)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_STATUS_LED
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+#endif
+#ifdef CONFIG_KUP4K_LOGO
+	bd_t *bd = gd->bd;
+
+	lcd_logo (bd);
+#endif							/* CONFIG_KUP4K_LOGO */
+#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
+	setenv("hw","4k");
+	poweron_key();
+	return (0);
+}
+
+#ifdef CONFIG_KUP4K_LOGO
+
+
+void lcd_logo (bd_t * bd)
+{
+	FB_INFO_S1D13xxx fb_info;
+	S1D_INDEX s1dReg;
+	S1D_VALUE s1dValue;
+	volatile immap_t *immr = (immap_t *) CFG_IMMR;
+	volatile memctl8xx_t *memctl;
+	ushort i;
+	uchar *fb;
+	int rs, gs, bs;
+	int r = 8, g = 8, b = 4;
+	int r1, g1, b1;
+	int n;
+	uchar tmp[64];		/* long enough for environment variables */
+	int tft = 0;
+
+	immr->im_cpm.cp_pbpar &= ~(PB_LCD_PWM);
+	immr->im_cpm.cp_pbodr &= ~(PB_LCD_PWM);
+	immr->im_cpm.cp_pbdat &= ~(PB_LCD_PWM);	/* set to 0 = enabled */
+	immr->im_cpm.cp_pbdir |= (PB_LCD_PWM);
+
+/*----------------------------------------------------------------------------- */
+/* Initialize the chip and the frame buffer driver. */
+/*----------------------------------------------------------------------------- */
+	memctl = &immr->im_memctl;
+
+
+	/*
+	 * Init ChipSelect #5 (S1D13768)
+	 */
+	memctl->memc_or5 = 0xFFC007F0;	/* 4 MB  17 WS or externel TA */
+	memctl->memc_br5 = 0x80080801;	/* Start at 0x80080000 */
+
+	fb_info.VmemAddr = (unsigned char *) (S1D_PHYSICAL_VMEM_ADDR);
+	fb_info.RegAddr = (unsigned char *) (S1D_PHYSICAL_REG_ADDR);
+
+	if ((((S1D_VALUE *) fb_info.RegAddr)[0] != 0x28)
+	    || (((S1D_VALUE *) fb_info.RegAddr)[1] != 0x14)) {
+		printf ("Warning:LCD Controller S1D13706 not found\n");
+		setenv ("lcd", "none");
+		return;
+	}
+
+
+	for (i = 0; i < sizeof(aS1DRegs_prelimn) / sizeof(aS1DRegs_prelimn[0]); i++) {
+		s1dReg = aS1DRegs_prelimn[i].Index;
+		s1dValue = aS1DRegs_prelimn[i].Value;
+		debugk ("s13768 reg: %02x value: %02x\n",
+			aS1DRegs_prelimn[i].Index, aS1DRegs_prelimn[i].Value);
+		((S1D_VALUE *) fb_info.RegAddr)[s1dReg / sizeof (S1D_VALUE)] =
+			s1dValue;
+	}
+
+
+	n = getenv_r ("lcd", tmp, sizeof (tmp));
+	if (n > 0) {
+		if (!strcmp ("tft", tmp))
+			tft = 1;
+		else
+			tft = 0;
+	}
+#if 0
+	if (((S1D_VALUE *) fb_info.RegAddr)[0xAC] & 0x04)
+		tft = 0;
+	else
+		tft = 1;
+#endif
+
+	debugk ("Port=0x%02x -> TFT=%d\n", tft,
+		((S1D_VALUE *) fb_info.RegAddr)[0xAC]);
+
+	/* init controller */
+	if (!tft) {
+		for (i = 0; i < sizeof(aS1DRegs_stn) / sizeof(aS1DRegs_stn[0]); i++) {
+			s1dReg = aS1DRegs_stn[i].Index;
+			s1dValue = aS1DRegs_stn[i].Value;
+			debugk ("s13768 reg: %02x value: %02x\n",
+				aS1DRegs_stn[i].Index,
+				aS1DRegs_stn[i].Value);
+			((S1D_VALUE *) fb_info.RegAddr)[s1dReg / sizeof(S1D_VALUE)] =
+				s1dValue;
+		}
+		n = getenv_r ("contrast", tmp, sizeof (tmp));
+		((S1D_VALUE *) fb_info.RegAddr)[0xB3] =
+			(n > 0) ? (uchar) simple_strtoul (tmp, NULL, 10) * 255 / 100 : 0xA0;
+		switch (bd->bi_busfreq) {
+		case 40000000:
+			((S1D_VALUE *) fb_info.RegAddr)[0x05] = 0x32;
+			((S1D_VALUE *) fb_info.RegAddr)[0x12] = 0x41;
+			break;
+		case 48000000:
+			((S1D_VALUE *) fb_info.RegAddr)[0x05] = 0x22;
+			((S1D_VALUE *) fb_info.RegAddr)[0x12] = 0x34;
+			break;
+		default:
+			printf ("KUP4K S1D1: unknown busfrequency: %ld assuming 64 MHz\n", bd->bi_busfreq);
+		case 64000000:
+			((S1D_VALUE *) fb_info.RegAddr)[0x05] = 0x32;
+			((S1D_VALUE *) fb_info.RegAddr)[0x12] = 0x66;
+			break;
+		}
+		/*   setenv("lcd","stn"); */
+	} else {
+		for (i = 0; i < sizeof(aS1DRegs_tft) / sizeof(aS1DRegs_tft[0]); i++) {
+			s1dReg = aS1DRegs_tft[i].Index;
+			s1dValue = aS1DRegs_tft[i].Value;
+			debugk ("s13768 reg: %02x value: %02x\n",
+				aS1DRegs_tft[i].Index,
+				aS1DRegs_tft[i].Value);
+			((S1D_VALUE *) fb_info.RegAddr)[s1dReg / sizeof (S1D_VALUE)] =
+				s1dValue;
+		}
+
+		switch (bd->bi_busfreq) {
+		default:
+			printf ("KUP4K S1D1: unknown busfrequency: %ld assuming 64 MHz\n", bd->bi_busfreq);
+		case 40000000:
+			((S1D_VALUE *) fb_info.RegAddr)[0x05] = 0x42;
+			((S1D_VALUE *) fb_info.RegAddr)[0x12] = 0x30;
+			break;
+		}
+		/* setenv("lcd","tft"); */
+	}
+
+	/* create and set colormap */
+	rs = 256 / (r - 1);
+	gs = 256 / (g - 1);
+	bs = 256 / (b - 1);
+	for (i = 0; i < 256; i++) {
+		r1 = (rs * ((i / (g * b)) % r)) * 255;
+		g1 = (gs * ((i / b) % g)) * 255;
+		b1 = (bs * ((i) % b)) * 255;
+		debugk ("%d %04x %04x %04x\n", i, r1 >> 4, g1 >> 4, b1 >> 4);
+		S1D_WRITE_PALETTE (fb_info.RegAddr, i, (r1 >> 4), (g1 >> 4),
+				   (b1 >> 4));
+	}
+
+	/* copy bitmap */
+	fb = (char *) (fb_info.VmemAddr);
+	memcpy (fb, (uchar *) CONFIG_KUP4K_LOGO, 320 * 240);
+}
+#endif	/* CONFIG_KUP4K_LOGO */