* 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
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 */
+