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https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 08:58:52 +09:00
![Heiko Schocher](/assets/img/avatar_default.png)
- Show on the Status LEDs, some States of the board. - Get the MAC addresses from the EEProm - use PREBOOT - use the CF on the board. - check the U-Boot image in the Flash with a SHA1 checksum. - use dynamic TLB entries generation for the SDRAM Signed-off-by: Heiko Schocher <hs@denx.de>
607 lines
16 KiB
C
607 lines
16 KiB
C
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <commproc.h>
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#include <mpc8xx.h>
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#ifdef CONFIG_SHOW_BOOT_PROGRESS
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# include <status_led.h>
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# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
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#else
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# define SHOW_BOOT_PROGRESS(arg)
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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/* ------------------------------------------------------------------------- */
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static long int dram_size (long int, long int *, long int);
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static ulong board_init (void);
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static void send_smi_frame (volatile scc_t * sp, volatile cbd_t * bd,
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uchar * msg);
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/* ------------------------------------------------------------------------- */
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#define _NOT_USED_ 0xFFFFFFFF
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const uint sdram_table[] = {
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/*
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* Single Read. (Offset 0 in UPMA RAM)
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*/
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0x1f07fc04, 0xeeaefc04, 0x11adfc04, 0xefbbbc00,
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0x1ff77c47, /* last */
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/*
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* SDRAM Initialization (offset 5 in UPMA RAM)
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*
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* This is no UPM entry point. The following definition uses
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* the remaining space to establish an initialization
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* sequence, which is executed by a RUN command.
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*
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*/
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0x1fe77c35, 0xffaffc34, 0x1fa57c35, /* last */
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/*
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* Burst Read. (Offset 8 in UPMA RAM)
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*/
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0x1f07fc04, 0xeeaefc04, 0x10adfc04, 0xf0affc00,
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0xf0affc00, 0xf1affc00, 0xefbbbc00, 0x1ff77c47, /* last */
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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/*
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* Single Write. (Offset 18 in UPMA RAM)
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*/
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0x1f27fc04, 0xeeaebc00, 0x01b93c04, 0x1ff77c47, /* last */
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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/*
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* Burst Write. (Offset 20 in UPMA RAM)
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*/
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0x1f07fc04, 0xeeaebc00, 0x10ad4c00, 0xf0afcc00,
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0xf0afcc00, 0xe1bb8c06, 0x1ff77c47, /* last */
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_NOT_USED_,
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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/*
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* Refresh (Offset 30 in UPMA RAM)
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*/
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0x1ff5fc84, 0xfffffc04, 0xfffffc04, 0xfffffc04,
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0xfffffc84, 0xfffffc07, /* last */
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_NOT_USED_, _NOT_USED_,
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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/*
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* Exception. (Offset 3c in UPMA RAM)
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*/
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0x7ffffc07, /* last */
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_NOT_USED_, _NOT_USED_, _NOT_USED_,
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};
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/* ------------------------------------------------------------------------- */
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/*
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* Check Board Identity:
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*
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* Test ID string (HERMES...)
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*
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* Return code for board revision and network speed
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*/
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int checkboard (void)
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{
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char *s = getenv ("serial#");
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char *e;
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puts ("Board: ");
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if (!s || strncmp (s, "HERMES", 6)) {
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puts ("### No HW ID - assuming HERMES-PRO");
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} else {
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for (e = s; *e; ++e) {
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if (*e == ' ')
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break;
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}
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for (; s < e; ++s) {
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putc (*s);
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}
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}
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gd->board_type = board_init ();
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printf (" Rev. %ld.x\n", (gd->board_type >> 16));
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return (0);
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}
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/* ------------------------------------------------------------------------- */
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long int initdram (int board_type)
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{
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volatile immap_t *immap = (immap_t *) CFG_IMMR;
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volatile memctl8xx_t *memctl = &immap->im_memctl;
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long int size, size8, size9;
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upmconfig (UPMA, (uint *) sdram_table,
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sizeof (sdram_table) / sizeof (uint));
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/*
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* Preliminary prescaler for refresh
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*/
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memctl->memc_mptpr = 0x0400;
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memctl->memc_mar = 0x00000088;
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/*
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* Map controller banks 1 to the SDRAM banks at preliminary address
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*/
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memctl->memc_or1 = CFG_OR1_PRELIM;
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memctl->memc_br1 = CFG_BR1_PRELIM;
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/* HERMES-PRO boards have only one bank SDRAM */
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udelay (200);
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/* perform SDRAM initializsation sequence */
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memctl->memc_mamr = 0xD0802114;
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memctl->memc_mcr = 0x80002105;
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udelay (1);
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memctl->memc_mamr = 0xD0802118;
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memctl->memc_mcr = 0x80002130;
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udelay (1);
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memctl->memc_mamr = 0xD0802114;
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memctl->memc_mcr = 0x80002106;
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udelay (1000);
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/*
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* Check Bank 0 Memory Size for re-configuration
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*
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* try 8 column mode
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*/
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size8 = dram_size (CFG_MAMR_8COL, (long *) SDRAM_BASE_PRELIM,
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SDRAM_MAX_SIZE);
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udelay (1000);
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/*
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* try 9 column mode
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*/
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size9 = dram_size (CFG_MAMR_9COL, (long *) SDRAM_BASE_PRELIM,
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SDRAM_MAX_SIZE);
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if (size8 < size9) { /* leave configuration at 9 columns */
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size = size9;
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/* debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20); */
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} else { /* back to 8 columns */
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size = size8;
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memctl->memc_mamr = CFG_MAMR_8COL;
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udelay (500);
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/* debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size >> 20); */
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}
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udelay (1000);
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memctl->memc_or1 = ((-size) & 0xFFFF0000) | SDRAM_TIMING;
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memctl->memc_br1 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
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udelay (10000);
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return (size);
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}
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/* ------------------------------------------------------------------------- */
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/*
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* Check memory range for valid RAM. A simple memory test determines
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* the actually available RAM size between addresses `base' and
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* `base + maxsize'. Some (not all) hardware errors are detected:
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* - short between address lines
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* - short between data lines
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*/
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static long int dram_size (long int mamr_value, long int *base,
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long int maxsize)
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{
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volatile immap_t *immap = (immap_t *) CFG_IMMR;
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volatile memctl8xx_t *memctl = &immap->im_memctl;
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memctl->memc_mamr = mamr_value;
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return (get_ram_size(base, maxsize));
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}
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/* ------------------------------------------------------------------------- */
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#define PB_LED_3 0x00020000 /* Status LED's */
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#define PB_LED_2 0x00010000
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#define PB_LED_1 0x00008000
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#define PB_LED_0 0x00004000
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#define PB_LED_ALL (PB_LED_0 | PB_LED_1 | PB_LED_2 | PB_LED_3)
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#define PC_REP_SPD1 0x00000800
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#define PC_REP_SPD0 0x00000400
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#define PB_RESET_2081 0x00000020 /* Reset PEB2081 */
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#define PB_MAI_4 0x00000010 /* Configuration */
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#define PB_MAI_3 0x00000008
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#define PB_MAI_2 0x00000004
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#define PB_MAI_1 0x00000002
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#define PB_MAI_0 0x00000001
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#define PB_MAI_ALL (PB_MAI_0 | PB_MAI_1 | PB_MAI_2 | PB_MAI_3 | PB_MAI_4)
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#define PC_REP_MGRPRS 0x0200
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#define PC_REP_SPD 0x0040 /* Select 100 Mbps */
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#define PC_REP_RES 0x0004
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#define PC_BIT14 0x0002 /* ??? */
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#define PC_BIT15 0x0001 /* ??? ENDSL ?? */
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/* ------------------------------------------------------------------------- */
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static ulong board_init (void)
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{
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volatile immap_t *immr = (immap_t *) CFG_IMMR;
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ulong reg, revision, speed = 100;
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int ethspeed;
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char *s;
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if ((s = getenv ("ethspeed")) != NULL) {
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if (strcmp (s, "100") == 0) {
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ethspeed = 100;
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} else if (strcmp (s, "10") == 0) {
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ethspeed = 10;
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} else {
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ethspeed = 0;
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}
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} else {
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ethspeed = 0;
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}
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/* Configure Port B Output Pins => 0x0003cc3F */
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reg = PB_LED_ALL | PC_REP_SPD1 | PC_REP_SPD0 | PB_RESET_2081 |
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PB_MAI_ALL;
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immr->im_cpm.cp_pbpar &= ~reg;
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immr->im_cpm.cp_pbodr &= ~reg;
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immr->im_cpm.cp_pbdat &= ~reg; /* all 0 */
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immr->im_cpm.cp_pbdir |= reg;
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/* Check hardware revision */
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if ((immr->im_ioport.iop_pcdat & 0x0003) == 0x0003) {
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/*
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* Revision 3.x hardware
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*/
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revision = 3;
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immr->im_ioport.iop_pcdat = 0x0240;
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immr->im_ioport.iop_pcdir = (PC_REP_MGRPRS | PC_REP_SPD | PC_REP_RES | PC_BIT14); /* = 0x0246 */
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immr->im_ioport.iop_pcdat |= PC_REP_RES;
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} else {
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immr->im_ioport.iop_pcdat = 0x0002;
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immr->im_ioport.iop_pcdir = (PC_REP_MGRPRS | PC_REP_RES | PC_BIT14 | PC_BIT15); /* = 0x0207 */
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if ((immr->im_ioport.iop_pcdat & PC_REP_SPD) == 0) {
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/*
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* Revision 2.x hardware: PC9 connected to PB21
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*/
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revision = 2;
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if (ethspeed == 0) {
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/* both 10 and 100 Mbps allowed:
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* select 10 Mbps and autonegotiation
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*/
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puts (" [10+100]");
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immr->im_cpm.cp_pbdat = 0; /* SPD1:SPD0 = 0:0 - autonegot. */
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speed = 10;
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} else if (ethspeed == 10) {
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/* we are asked for 10 Mbps,
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* so select 10 Mbps
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*/
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puts (" [10]");
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immr->im_cpm.cp_pbdat = 0; /* ??? */
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speed = 10;
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} else {
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/* anything else:
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* select 100 Mbps
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*/
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puts (" [100]");
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immr->im_cpm.cp_pbdat = PC_REP_SPD0 | PC_REP_SPD1;
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/* SPD1:SPD0 = 1:1 - 100 Mbps */
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speed = 100;
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}
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immr->im_ioport.iop_pcdat |= (PC_REP_RES | PC_BIT14);
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/* must be run from RAM */
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/* start_lxt980 (speed); */
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/*************************/
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} else {
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/*
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* Revision 1.x hardware
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*/
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revision = 1;
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immr->im_ioport.iop_pcdat = PC_REP_MGRPRS | PC_BIT14; /* = 0x0202 */
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immr->im_ioport.iop_pcdir = (PC_REP_MGRPRS | PC_REP_SPD | PC_REP_RES | PC_BIT14 | PC_BIT15); /* = 0x0247 */
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if (ethspeed == 0) {
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/* both 10 and 100 Mbps allowed:
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* select 100 Mbps and autonegotiation
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*/
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puts (" [10+100]");
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immr->im_cpm.cp_pbdat = 0; /* SPD1:SPD0 = 0:0 - autonegot. */
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immr->im_ioport.iop_pcdat |= PC_REP_SPD;
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} else if (ethspeed == 10) {
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/* we are asked for 10 Mbps,
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* so select 10 Mbps
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*/
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puts (" [10]");
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immr->im_cpm.cp_pbdat = PC_REP_SPD0; /* SPD1:SPD0 = 0:1 - 10 Mbps */
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} else {
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/* anything else:
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* select 100 Mbps
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*/
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puts (" [100]");
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immr->im_cpm.cp_pbdat = PC_REP_SPD0 | PC_REP_SPD1;
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/* SPD1:SPD0 = 1:1 - 100 Mbps */
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immr->im_ioport.iop_pcdat |= PC_REP_SPD;
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}
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immr->im_ioport.iop_pcdat |= PC_REP_RES;
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}
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}
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SHOW_BOOT_PROGRESS (0x00);
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return ((revision << 16) | (speed & 0xFFFF));
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}
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/* ------------------------------------------------------------------------- */
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#define SCC_SM 1 /* Index => SCC2 */
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#define PROFF PROFF_SCC2
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#define SMI_MSGLEN 8 /* Length of SMI Messages */
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#define PHYGPCR_ADDR 0x109 /* Port Enable */
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#define PHYPCR_ADDR 0x132 /* PHY Port Control Reg. (port 1) */
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#define LEDPCR_ADDR 0x141 /* LED Port Control Reg. */
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#define RPRESET_ADDR 0x144 /* Repeater Reset */
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#define PHYPCR_SPEED 0x2000 /* on for 100 Mbps, off for 10 Mbps */
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#define PHYPCR_AN 0x1000 /* on to enable Auto-Negotiation */
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#define PHYPCR_REST_AN 0x0200 /* on to restart Auto-Negotiation */
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#define PHYPCR_FDX 0x0100 /* on for Full Duplex, off for HDX */
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#define PHYPCR_COLT 0x0080 /* on to enable COL signal test */
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/* ------------------------------------------------------------------------- */
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/*
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* Must run from RAM:
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* uses parameter RAM area which is used for stack while running from ROM
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*/
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void hermes_start_lxt980 (int speed)
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{
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volatile immap_t *immr = (immap_t *) CFG_IMMR;
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volatile cpm8xx_t *cp = (cpm8xx_t *) & (immr->im_cpm);
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volatile scc_t *sp = (scc_t *) & (cp->cp_scc[SCC_SM]);
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volatile cbd_t *bd;
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volatile hdlc_pram_t *hp;
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uchar smimsg[SMI_MSGLEN];
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ushort phypcrval;
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uint bd_off;
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int pnr;
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printf ("LXT9880: %3d Mbps\n", speed);
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immr->im_ioport.iop_paodr |= 0x0008; /* init PAODR: PA12 (TXD2) open drain */
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immr->im_ioport.iop_papar |= 0x400c; /* init PAPAR: TXD2, RXD2, BRGO4 */
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immr->im_ioport.iop_padir &= 0xbff3; /* init PADIR: BRGO4 */
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immr->im_ioport.iop_padir |= 0x4000;
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/* get temporary BD; no need for permanent alloc */
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bd_off = dpram_base_align (8);
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bd = (cbd_t *) (immr->im_cpm.cp_dpmem + bd_off);
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bd->cbd_bufaddr = 0;
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bd->cbd_datlen = 0;
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bd->cbd_sc = BD_SC_WRAP | BD_SC_LAST | BD_SC_INTRPT | BD_SC_TC;
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/* init. baudrate generator BRG4 */
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cp->cp_brgc4 = (0x00010000 | (50 << 1)); /* output 1 MHz */
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cp->cp_sicr &= 0xFFFF00FF; /* SICR: mask SCC2 */
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cp->cp_sicr |= 0x00001B00; /* SICR: SCC2 clk BRG4 */
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/* init SCC_SM register */
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sp->scc_psmr = 0x0000; /* init PSMR: no additional flags */
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sp->scc_todr = 0x0000;
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sp->scc_dsr = 0x7e7e;
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/* init. SCC_SM parameter area */
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hp = (hdlc_pram_t *) & cp->cp_dparam[PROFF];
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hp->tbase = bd_off; /* offset from beginning of DPRAM */
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hp->rfcr = 0x18;
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hp->tfcr = 0x18;
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hp->mrblr = 10;
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hp->c_mask = 0x0000f0b8;
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hp->c_pres = 0x0000ffff;
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hp->disfc = 0;
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hp->crcec = 0;
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hp->abtsc = 0;
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hp->nmarc = 0;
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hp->retrc = 0;
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hp->mflr = 10;
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hp->rfthr = 1;
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hp->hmask = 0;
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hp->haddr1 = 0;
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hp->haddr2 = 0;
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hp->haddr3 = 0;
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hp->haddr4 = 0;
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cp->cp_cpcr = SCC_SM << 6 | 0x0001; /* SCC_SM: init TX/RX params */
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while (cp->cp_cpcr & CPM_CR_FLG);
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/* clear all outstanding SCC events */
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sp->scc_scce = ~0;
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/* enable transmitter: GSMR_L: TPL=2(16bits), TPP=3(all ones), ENT */
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|
sp->scc_gsmrh = 0;
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|
sp->scc_gsmrl |= SCC_GSMRL_TPL_16 | SCC_GSMRL_TPP_ALL1 |
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SCC_GSMRL_ENT | SCC_GSMRL_MODE_HDLC;
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|
|
|
#if 0
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smimsg[0] = 0x00; /* CHIP/HUB ID */
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smimsg[1] = 0x38; /* WRITE CMD */
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|
smimsg[2] = (RPRESET_ADDR << 4) & 0xf0;
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|
smimsg[3] = RPRESET_ADDR >> 4;
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|
smimsg[4] = 0x01;
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|
smimsg[5] = 0x00;
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|
smimsg[6] = 0x00;
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|
smimsg[7] = 0x00;
|
|
|
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send_smi_frame (sp, bd, smimsg);
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|
#endif
|
|
|
|
smimsg[0] = 0x7f; /* BROADCAST */
|
|
smimsg[1] = 0x34; /* ASSIGN HUB ID */
|
|
smimsg[2] = 0x00;
|
|
smimsg[3] = 0x00;
|
|
smimsg[4] = 0x00; /* HUB ID = 0 */
|
|
smimsg[5] = 0x00;
|
|
smimsg[6] = 0x00;
|
|
smimsg[7] = 0x00;
|
|
|
|
send_smi_frame (sp, bd, smimsg);
|
|
|
|
smimsg[0] = 0x7f; /* BROADCAST */
|
|
smimsg[1] = 0x3c; /* SET ARBOUT TO 0 */
|
|
smimsg[2] = 0x00; /* ADDRESS = 0 */
|
|
smimsg[3] = 0x00;
|
|
smimsg[4] = 0x00; /* DATA = 0 */
|
|
smimsg[5] = 0x00;
|
|
smimsg[6] = 0x00;
|
|
smimsg[7] = 0x00;
|
|
|
|
send_smi_frame (sp, bd, smimsg);
|
|
|
|
if (speed == 100) {
|
|
phypcrval = PHYPCR_SPEED; /* 100 MBIT, disable autoneg. */
|
|
} else {
|
|
phypcrval = 0; /* 10 MBIT, disable autoneg. */
|
|
}
|
|
|
|
/* send MSGs */
|
|
for (pnr = 0; pnr < 8; pnr++) {
|
|
smimsg[0] = 0x00; /* CHIP/HUB ID */
|
|
smimsg[1] = 0x38; /* WRITE CMD */
|
|
smimsg[2] = ((PHYPCR_ADDR + pnr) << 4) & 0xf0;
|
|
smimsg[3] = (PHYPCR_ADDR + pnr) >> 4;
|
|
smimsg[4] = (unsigned char) (phypcrval & 0xff);
|
|
smimsg[5] = (unsigned char) (phypcrval >> 8);
|
|
smimsg[6] = 0x00;
|
|
smimsg[7] = 0x00;
|
|
|
|
send_smi_frame (sp, bd, smimsg);
|
|
}
|
|
|
|
smimsg[0] = 0x00; /* CHIP/HUB ID */
|
|
smimsg[1] = 0x38; /* WRITE CMD */
|
|
smimsg[2] = (PHYGPCR_ADDR << 4) & 0xf0;
|
|
smimsg[3] = PHYGPCR_ADDR >> 4;
|
|
smimsg[4] = 0xff; /* enable port 1-8 */
|
|
smimsg[5] = 0x01; /* enable MII1 (0x01) */
|
|
smimsg[6] = 0x00;
|
|
smimsg[7] = 0x00;
|
|
|
|
send_smi_frame (sp, bd, smimsg);
|
|
|
|
smimsg[0] = 0x00; /* CHIP/HUB ID */
|
|
smimsg[1] = 0x38; /* WRITE CMD */
|
|
smimsg[2] = (LEDPCR_ADDR << 4) & 0xf0;
|
|
smimsg[3] = LEDPCR_ADDR >> 4;
|
|
smimsg[4] = 0xaa; /* Port 1-8 Conf.bits = 10 (Hardware control) */
|
|
smimsg[5] = 0xaa;
|
|
smimsg[6] = 0x00;
|
|
smimsg[7] = 0x00;
|
|
|
|
send_smi_frame (sp, bd, smimsg);
|
|
|
|
/*
|
|
* Disable Transmitter (so that we can free the BD, too)
|
|
*/
|
|
sp->scc_gsmrl &= ~SCC_GSMRL_ENT;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
static void send_smi_frame (volatile scc_t * sp, volatile cbd_t * bd,
|
|
uchar * msg)
|
|
{
|
|
#ifdef DEBUG
|
|
unsigned hub, chip, cmd, length, addr;
|
|
|
|
hub = msg[0] & 0x1F;
|
|
chip = msg[0] >> 5;
|
|
cmd = msg[1] & 0x1F;
|
|
length = (msg[1] >> 5) | ((msg[2] & 0x0F) << 3);
|
|
addr = (msg[2] >> 4) | (msg[3] << 4);
|
|
|
|
printf ("SMI send: Hub %02x Chip %x Cmd %02x Len %d Addr %03x: "
|
|
"%02x %02x %02x %02x\n",
|
|
hub, chip, cmd, length, addr, msg[4], msg[5], msg[6], msg[7]);
|
|
#endif /* DEBUG */
|
|
|
|
bd->cbd_bufaddr = (uint) msg;
|
|
bd->cbd_datlen = SMI_MSGLEN;
|
|
bd->cbd_sc |= BD_SC_READY;
|
|
|
|
/* wait for msg transmitted */
|
|
while ((sp->scc_scce & 0x0002) == 0);
|
|
/* clear all events */
|
|
sp->scc_scce = ~0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
void show_boot_progress (int status)
|
|
{
|
|
volatile immap_t *immr = (immap_t *) CFG_IMMR;
|
|
|
|
if (status < -32) status = -1; /* let things compatible */
|
|
status ^= 0x0F;
|
|
status = (status & 0x0F) << 14;
|
|
immr->im_cpm.cp_pbdat = (immr->im_cpm.cp_pbdat & ~PB_LED_ALL) | status;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|