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Diffstat (limited to 'board/etx094/etx094.c')
-rw-r--r--board/etx094/etx094.c384
1 files changed, 0 insertions, 384 deletions
diff --git a/board/etx094/etx094.c b/board/etx094/etx094.c
deleted file mode 100644
index abefe4a..0000000
--- a/board/etx094/etx094.c
+++ /dev/null
@@ -1,384 +0,0 @@
-/*
- * (C) Copyright 2000
- * Wolfgang Denk, DENX Software Engineering, wd@denx.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>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* ------------------------------------------------------------------------- */
-
-static long int dram_size (long int, long int *, long int);
-static void read_hw_vers (void);
-
-/* ------------------------------------------------------------------------- */
-
-#define _NOT_USED_ 0xFFFFFFFF
-
-const uint sdram_table[] = {
-
- /* single read (offset 0x00 in upm ram) */
-
- 0xEECEFC24, 0x100DFC24, 0xE02FBC04, 0x01AA7C04,
- 0x1FB5FC00, 0xFFFFFC05, _NOT_USED_, _NOT_USED_,
-
- /* burst read (offset 0x08 in upm ram) */
-
- 0xEECEFC24, 0x100DFC24, 0xE0FFBC04, 0x10FF7C04,
- 0xF0FFFC00, 0xF0FFFC00, 0xF0FFFC00, 0xFFFFFC00,
- 0xFFFFFC05, _NOT_USED_, _NOT_USED_, _NOT_USED_,
- _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
-
- /* single write (offset 0x18 in upm ram) */
-
- 0xEECEFC24, 0x100DFC24, 0xE02BBC04, 0x01A27C00,
- 0xEFAAFC04, 0x1FB5FC05, _NOT_USED_, _NOT_USED_,
-
- /* burst write (offset 0x20 in upm ram) */
-
- 0xEECEFC24, 0x103DFC24, 0xE0FBBC00, 0x10F77C00,
- 0xF0FFFC00, 0xF0FFFC00, 0xF0FFFC04, 0xFFFFFC05,
-
- /* init part1 (offset 0x28 in upm ram) */
-
- 0xEFFAFC3C, 0x1FF4FC34, 0xEFFCBC34, 0x1FFC3C34,
- 0xFFFC3C35, _NOT_USED_, _NOT_USED_, _NOT_USED_,
-
- /* refresh (offset 0x30 in upm ram) */
-
- 0xEFFEBC0C, 0x1FFD7C04, 0xFFFFFC04, 0xFFFFFC05,
-
- /* init part2 (offset 0x34 in upm ram) */
-
- 0xFFFEBC04, 0xEFFC3CB4, 0x1FFC3C34, 0xFFFC3C34,
- 0xFFFC3C34, 0xEFE83CB4, 0x1FB57C35, _NOT_USED_,
-
- /* exception (offset 0x3C in upm ram) */
-
- 0xFFFFFC05, _NOT_USED_, _NOT_USED_, _NOT_USED_,
-
-};
-
-/* ------------------------------------------------------------------------- */
-
-
-/*
- * Check Board Identity:
- *
- * Test ETX ID string (ETX_xxx...)
- *
- * Return 1 always.
- */
-
-int checkboard (void)
-{
- char buf[64];
- int i;
- int l = getenv_f("serial#", buf, sizeof(buf));
-
- puts ("Board: ");
-
-#ifdef SB_ETX094
- gd->board_type = 0; /* 0 = 2SDRAM-Device */
-#else
- gd->board_type = 1; /* 1 = 1SDRAM-Device */
-#endif
-
- if (l < 0 || strncmp(buf, "ETX_", 4)) {
- puts ("### No HW ID - assuming ETX_094\n");
- read_hw_vers ();
- return (0);
- }
-
- for (i = 0; i < l; ++i) {
- if (buf[i] == ' ')
- break;
- putc(buf[i]);
- }
- putc ('\n');
-
- read_hw_vers ();
- return (0);
-}
-
-/* ------------------------------------------------------------------------- */
-
-phys_size_t initdram (int board_type)
-{
- volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
- long int size_b0, size_b1, size8, size9;
-
- 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 = CONFIG_SYS_MPTPR_1BK_4K; /* MPTPR_PTP_DIV32 0x0200 */
-
- /* A3(SDRAM)=0 => Bursttype = Sequential
- * A2-A0(SDRAM)=010 => Burst length = 4
- * A4-A6(SDRAM)=010 => CasLat=2
- */
- memctl->memc_mar = 0x00000088;
-
- /*
- * Map controller banks 2 and 3 to the SDRAM banks 2 and 3 at
- * preliminary addresses - these have to be modified after the
- * SDRAM size has been determined.
- */
- memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM;
- memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM;
-
- if (board_type == 0) { /* "L" type boards have only one bank SDRAM */
- memctl->memc_or3 = CONFIG_SYS_OR3_PRELIM;
- memctl->memc_br3 = CONFIG_SYS_BR3_PRELIM;
- }
-
- memctl->memc_mamr = CONFIG_SYS_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
-
- udelay (200);
-
- /* perform SDRAM initializsation sequence */
-
- memctl->memc_mcr = 0x80004128; /* SDRAM bank 0 (CS2) - Init Part 1 */
- memctl->memc_mcr = 0x80004734; /* SDRAM bank 0 (CS2) - Init Part 2 */
- udelay (1);
-
- if (board_type == 0) { /* "L" type boards have only one bank SDRAM */
- memctl->memc_mcr = 0x80006128; /* SDRAM bank 1 (CS3) - Init Part 1 */
- memctl->memc_mcr = 0x80006734; /* SDRAM bank 1 (CS3) - Init Part 2 */
- udelay (1);
- }
-
- memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
-
- udelay (1000);
-
- /*
- * Check Bank 0 Memory Size for re-configuration
- *
- * try 8 column mode
- */
- size8 = dram_size (CONFIG_SYS_MAMR_8COL, (long *) SDRAM_BASE2_PRELIM,
- SDRAM_MAX_SIZE);
-
- udelay (1000);
-
- /*
- * try 9 column mode
- */
- size9 = dram_size (CONFIG_SYS_MAMR_9COL, (long *) SDRAM_BASE2_PRELIM,
- SDRAM_MAX_SIZE);
-
- if (size8 < size9) { /* leave configuration at 9 columns */
- size_b0 = size9;
-/* debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20); */
- } else { /* back to 8 columns */
- size_b0 = size8;
- memctl->memc_mamr = CONFIG_SYS_MAMR_8COL;
- udelay (500);
-/* debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size >> 20); */
- }
-
- if (board_type == 0) { /* "L" type boards have only one bank SDRAM */
- /*
- * Check Bank 1 Memory Size
- * use current column settings
- * [9 column SDRAM may also be used in 8 column mode,
- * but then only half the real size will be used.]
- */
- size_b1 =
- dram_size (memctl->memc_mamr, (long *) SDRAM_BASE3_PRELIM,
- SDRAM_MAX_SIZE);
-/* debug ("SDRAM Bank 1: %ld MB\n", size8 >> 20); */
- } else {
- size_b1 = 0;
- }
-
- udelay (1000);
-
- /*
- * Adjust refresh rate depending on SDRAM type, both banks
- * For types > 128 MBit leave it at the current (fast) rate
- */
- if ((size_b0 < 0x02000000) && (size_b1 < 0x02000000)) {
- /* reduce to 15.6 us (62.4 us / quad) */
- memctl->memc_mptpr = CONFIG_SYS_MPTPR_2BK_4K; /*DIV16 */
- udelay (1000);
- }
-
- /*
- * Final mapping: map bigger bank first
- */
- if (size_b1 > size_b0) { /* SDRAM Bank 1 is bigger - map first */
-
- memctl->memc_or3 = ((-size_b1) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
- memctl->memc_br3 =
- (CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
-
- if (size_b0 > 0) {
- /*
- * Position Bank 0 immediately above Bank 1
- */
- memctl->memc_or2 =
- ((-size_b0) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
- memctl->memc_br2 =
- ((CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
- + size_b1;
- } else {
- unsigned long reg;
-
- /*
- * No bank 0
- *
- * invalidate bank
- */
- memctl->memc_br2 = 0;
-
- /* adjust refresh rate depending on SDRAM type, one bank */
- reg = memctl->memc_mptpr;
- reg >>= 1; /* reduce to CONFIG_SYS_MPTPR_1BK_8K / _4K */
- memctl->memc_mptpr = reg;
- }
-
- } else { /* SDRAM Bank 0 is bigger - map first */
-
- memctl->memc_or2 = ((-size_b0) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
- memctl->memc_br2 =
- (CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
-
- if (size_b1 > 0) {
- /*
- * Position Bank 1 immediately above Bank 0
- */
- memctl->memc_or3 =
- ((-size_b1) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
- memctl->memc_br3 =
- ((CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
- + size_b0;
- } else {
- unsigned long reg;
-
- /*
- * No bank 1
- *
- * invalidate bank
- */
- memctl->memc_br3 = 0;
-
- /* adjust refresh rate depending on SDRAM type, one bank */
- reg = memctl->memc_mptpr;
- reg >>= 1; /* reduce to CONFIG_SYS_MPTPR_1BK_8K / _4K */
- memctl->memc_mptpr = reg;
- }
- }
-
- udelay (10000);
-
- return (size_b0 + size_b1);
-}
-
-/* ------------------------------------------------------------------------- */
-
-/*
- * 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
- */
-
-static long int dram_size (long int mamr_value, long int *base,
- long int maxsize)
-{
- volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
-
- memctl->memc_mamr = mamr_value;
-
- return (get_ram_size(base, maxsize));
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* HW-ID Table (Bits: 2^9;2^7;2^5) */
-#define HW_ID_0 0x0000
-#define HW_ID_1 0x0020
-#define HW_ID_2 0x0080
-#define HW_ID_3 0x00a0
-#define HW_ID_4 0x0200
-#define HW_ID_5 0x0220
-#define HW_ID_6 0x0280
-#define HW_ID_7 0x02a0
-
-void read_hw_vers ()
-{
- unsigned short rd_msk = 0x02A0;
-
- /* HW-ID pin-definition */
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-
- immr->im_ioport.iop_pddir &= ~(rd_msk);
- immr->im_ioport.iop_pdpar &= ~(rd_msk);
-
- /* debug printf("State of PD: %x\n",immr->im_ioport.iop_pddat); */
-
- /* Check the HW-ID */
- printf ("HW-Version: ");
- switch (immr->im_ioport.iop_pddat & rd_msk) {
- case HW_ID_0:
- printf ("V0.1 - V0.3 / W97238-Q3162-A1-1-2\n");
- break;
- case HW_ID_1:
- printf ("V0.9 / W50037-Q1-D6-1\n");
- break;
- case HW_ID_2:
- printf ("NOT USED - assuming ID#2\n");
- break;
- case HW_ID_3:
- printf ("NOT USED - assuming ID#3\n");
- break;
- case HW_ID_4:
- printf ("NOT USED - assuming ID#4\n");
- break;
- case HW_ID_5:
- printf ("NOT USED - assuming ID#5\n");
- break;
- case HW_ID_6:
- printf ("NOT USED - assuming ID#6\n");
- break;
- case HW_ID_7:
- printf ("NOT USED - assuming ID#7\n");
- break;
- default:
- printf ("###Error###\n");
- break;
- }
-}
-
-/* ------------------------------------------------------------------------- */
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