* Add support for log buffer which can be passed to Linux kernel's

  syslog mechanism; used especially for POST results.

* Patch by Klaus Heydeck, 31 Oct 2002:
  Add initial support for kup4k board

1 files changed, 424 insertions, 0 deletions

diff --git a/board/kup4k/kup4k.c b/board/kup4k/kup4k.c
new file mode 100644
index 0000000..86e1c81
--- /dev/null
+++ b/board/kup4k/kup4k.c
@@ -0,0 +1,424 @@
+/*
+ * (C) Copyright 2000, 2001, 2002
+ * 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>
+#ifdef CONFIG_KUP4K_LOGO
+   #include "s1d13706.h"
+#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)
+{
+
+	printf ("### No HW ID - assuming KUP4K-Color\n");
+	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);
+
+    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;
+
+    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_KUP4K_LOGO
+	bd_t *bd = gd->bd;
+
+
+	lcd_logo(bd);
+#endif /* CONFIG_KUP4K_LOGO */
+	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;
+
+/*----------------------------------------------------------------------------- */
+/**/
+/* Initialize the chip and the frame buffer driver. */
+/**/
+/*----------------------------------------------------------------------------- */
+    memctl = &immr->im_memctl;
+/*    memctl->memc_or5 = 0xFFC007F0;    / * 4 MB  17 WS or externel TA */
+/*    memctl->memc_br5 = 0x80000801;    / * Start at 0x80000000 */
+
+    memctl->memc_or5 = 0xFFC00708;    /* 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");
+	  return;
+    }
+
+    /* init controller */
+    for (i = 0; i < sizeof(aS1DRegs)/sizeof(aS1DRegs[0]); i++)
+    {
+        s1dReg = aS1DRegs[i].Index;
+        s1dValue = aS1DRegs[i].Value;
+/*      printf("sid1 Index: %02x Register: %02x Wert: %02x\n",i, aS1DRegs[i].Index, aS1DRegs[i].Value); */
+        ((S1D_VALUE*)fb_info.RegAddr)[s1dReg/sizeof(S1D_VALUE)] = s1dValue;
+    }
+
+#undef MONOCHROME
+#ifdef MONOCHROME
+   	switch(bd->bi_busfreq){
+#if 0
+		case 24000000:
+			((S1D_VALUE*)fb_info.RegAddr)[0x05] = 0x32;
+			((S1D_VALUE*)fb_info.RegAddr)[0x12] = 0x28;
+			break;
+		case 32000000:
+			((S1D_VALUE*)fb_info.RegAddr)[0x05] = 0x32;
+			((S1D_VALUE*)fb_info.RegAddr)[0x12] = 0x33;
+			break;
+#endif
+		case 40000000:
+			((S1D_VALUE*)fb_info.RegAddr)[0x05] = 0x32;
+			((S1D_VALUE*)fb_info.RegAddr)[0x12] = 0x40;
+			break;
+		case 48000000:
+			((S1D_VALUE*)fb_info.RegAddr)[0x05] = 0x32;
+			((S1D_VALUE*)fb_info.RegAddr)[0x12] = 0x4C;
+			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] = 0x69;
+			break;
+	}
+	((S1D_VALUE*)fb_info.RegAddr)[0x10] = 0x00;
+#else
+	   	switch(bd->bi_busfreq){
+#if 0
+		case 24000000:
+			((S1D_VALUE*)fb_info.RegAddr)[0x05] = 0x22;
+			((S1D_VALUE*)fb_info.RegAddr)[0x12] = 0x34;
+			break;
+		case 32000000:
+			((S1D_VALUE*)fb_info.RegAddr)[0x05] = 0x32;
+			((S1D_VALUE*)fb_info.RegAddr)[0x12] = 0x34;
+			break;
+#endif
+		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;
+	}
+#endif
+
+    
+    /* 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;
+/*     printf("%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 */
+