mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-10-06 03:20:41 +09:00
787fa15860
The invocation of do_auto_update() is moved to the end of the misc_init_r() function, after the flash mappings have been initialized. Please find attached a patch that implements that change. Also correct the decoding of the keypad status. With this update, the key that will trigger the update is Column 2, Row 2.
332 lines
8.6 KiB
C
332 lines
8.6 KiB
C
/*
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* (C) Copyright 2003-2006
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2004
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* Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
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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 <mpc5xxx.h>
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#include <pci.h>
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#include <asm/processor.h>
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/* Two MT48LC8M32B2 for 32 MB */
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/* #include "mt48lc8m32b2-6-7.h" */
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/* One MT48LC16M32S2 for 64 MB */
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/* #include "mt48lc16m32s2-75.h" */
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#if defined (CONFIG_MCC200_SDRAM)
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#include "mt48lc16m16a2-75.h"
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#else
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#include "mt46v16m16-75.h"
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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extern flash_info_t flash_info[]; /* FLASH chips info */
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extern int do_auto_update(void);
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ulong flash_get_size (ulong base, int banknum);
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#ifndef CFG_RAMBOOT
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static void sdram_start (int hi_addr)
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{
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long hi_addr_bit = hi_addr ? 0x01000000 : 0;
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/* unlock mode register */
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*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit;
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__asm__ volatile ("sync");
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/* precharge all banks */
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*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
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__asm__ volatile ("sync");
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#if SDRAM_DDR
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/* set mode register: extended mode */
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*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE;
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__asm__ volatile ("sync");
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/* set mode register: reset DLL */
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*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000;
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__asm__ volatile ("sync");
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#endif
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/* precharge all banks */
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*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
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__asm__ volatile ("sync");
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/* auto refresh */
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*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit;
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__asm__ volatile ("sync");
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/* set mode register */
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*(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
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__asm__ volatile ("sync");
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/* normal operation */
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*(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
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__asm__ volatile ("sync");
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udelay(10);
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}
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#endif
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/*
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* ATTENTION: Although partially referenced initdram does NOT make real use
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* use of CFG_SDRAM_BASE. The code does not work if CFG_SDRAM_BASE
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* is something else than 0x00000000.
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*/
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long int initdram (int board_type)
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{
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ulong dramsize = 0;
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ulong dramsize2 = 0;
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uint svr, pvr;
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#ifndef CFG_RAMBOOT
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ulong test1, test2;
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/* setup SDRAM chip selects */
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*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e;/* 2G at 0x0 */
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*(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000;/* disabled */
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__asm__ volatile ("sync");
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/* setup config registers */
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*(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
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*(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
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__asm__ volatile ("sync");
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#if SDRAM_DDR
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/* set tap delay */
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*(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY;
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__asm__ volatile ("sync");
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#endif
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/* find RAM size using SDRAM CS0 only */
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sdram_start(0);
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test1 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
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sdram_start(1);
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test2 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
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if (test1 > test2) {
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sdram_start(0);
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dramsize = test1;
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} else {
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dramsize = test2;
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}
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/* memory smaller than 1MB is impossible */
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if (dramsize < (1 << 20)) {
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dramsize = 0;
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}
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/* set SDRAM CS0 size according to the amount of RAM found */
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if (dramsize > 0) {
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*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 + __builtin_ffs(dramsize >> 20) - 1;
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} else {
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*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
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}
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/* let SDRAM CS1 start right after CS0 */
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*(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */
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/* find RAM size using SDRAM CS1 only */
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if (!dramsize)
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sdram_start(0);
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test2 = test1 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
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if (!dramsize) {
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sdram_start(1);
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test2 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
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}
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if (test1 > test2) {
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sdram_start(0);
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dramsize2 = test1;
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} else {
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dramsize2 = test2;
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}
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/* memory smaller than 1MB is impossible */
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if (dramsize2 < (1 << 20)) {
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dramsize2 = 0;
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}
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/* set SDRAM CS1 size according to the amount of RAM found */
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if (dramsize2 > 0) {
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*(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize
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| (0x13 + __builtin_ffs(dramsize2 >> 20) - 1);
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} else {
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*(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
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}
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#else /* CFG_RAMBOOT */
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/* retrieve size of memory connected to SDRAM CS0 */
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dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
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if (dramsize >= 0x13) {
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dramsize = (1 << (dramsize - 0x13)) << 20;
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} else {
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dramsize = 0;
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}
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/* retrieve size of memory connected to SDRAM CS1 */
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dramsize2 = *(vu_long *)MPC5XXX_SDRAM_CS1CFG & 0xFF;
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if (dramsize2 >= 0x13) {
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dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
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} else {
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dramsize2 = 0;
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}
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#endif /* CFG_RAMBOOT */
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/*
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* On MPC5200B we need to set the special configuration delay in the
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* DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM
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* Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190:
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*
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* "The SDelay should be written to a value of 0x00000004. It is
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* required to account for changes caused by normal wafer processing
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* parameters."
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*/
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svr = get_svr();
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pvr = get_pvr();
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if ((SVR_MJREV(svr) >= 2) && (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) {
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*(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04;
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__asm__ volatile ("sync");
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}
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return dramsize + dramsize2;
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}
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int checkboard (void)
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{
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#if defined(CONFIG_PRS200)
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puts ("Board: PRS200\n");
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#else
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puts ("Board: MCC200\n");
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#endif
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return 0;
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}
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int misc_init_r (void)
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{
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ulong flash_sup_end, snum;
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/*
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* Adjust flash start and offset to detected values
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*/
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gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
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gd->bd->bi_flashoffset = 0;
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/*
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* Check if boot FLASH isn't max size
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*/
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if (gd->bd->bi_flashsize < (0 - CFG_FLASH_BASE)) {
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/* adjust mapping */
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*(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START =
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START_REG(gd->bd->bi_flashstart);
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*(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP =
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STOP_REG(gd->bd->bi_flashstart, gd->bd->bi_flashsize);
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/*
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* Re-check to get correct base address
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*/
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flash_get_size(gd->bd->bi_flashstart, CFG_MAX_FLASH_BANKS - 1);
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/*
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* Re-do flash protection upon new addresses
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*/
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flash_protect (FLAG_PROTECT_CLEAR,
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gd->bd->bi_flashstart, 0xffffffff,
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&flash_info[CFG_MAX_FLASH_BANKS - 1]);
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/* Monitor protection ON by default */
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flash_protect (FLAG_PROTECT_SET,
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CFG_MONITOR_BASE, CFG_MONITOR_BASE + monitor_flash_len - 1,
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&flash_info[CFG_MAX_FLASH_BANKS - 1]);
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/* Environment protection ON by default */
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flash_protect (FLAG_PROTECT_SET,
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CFG_ENV_ADDR,
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CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
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&flash_info[CFG_MAX_FLASH_BANKS - 1]);
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/* Redundant environment protection ON by default */
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flash_protect (FLAG_PROTECT_SET,
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CFG_ENV_ADDR_REDUND,
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CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 1,
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&flash_info[CFG_MAX_FLASH_BANKS - 1]);
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}
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if (gd->bd->bi_flashsize > (32 << 20)) {
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/* Unprotect the upper bank of the Flash */
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*(volatile int*)MPC5XXX_CS0_CFG |= (1 << 6);
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flash_protect (FLAG_PROTECT_CLEAR,
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flash_info[0].start[0] + flash_info[0].size / 2,
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(flash_info[0].start[0] - 1) + flash_info[0].size,
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&flash_info[0]);
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*(volatile int*)MPC5XXX_CS0_CFG &= ~(1 << 6);
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printf ("Warning: Only 32 of 64 MB of Flash are accessible from U-Boot\n");
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flash_info[0].size = 32 << 20;
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for (snum = 0, flash_sup_end = gd->bd->bi_flashstart + (32<<20);
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flash_info[0].start[snum] < flash_sup_end;
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snum++);
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flash_info[0].sector_count = snum;
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}
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#ifdef CONFIG_AUTO_UPDATE
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do_auto_update();
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#endif
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return (0);
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}
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#ifdef CONFIG_PCI
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static struct pci_controller hose;
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extern void pci_mpc5xxx_init(struct pci_controller *);
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void pci_init_board(void)
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{
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pci_mpc5xxx_init(&hose);
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}
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#endif
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#if defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET)
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void init_ide_reset (void)
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{
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debug ("init_ide_reset\n");
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}
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void ide_set_reset (int idereset)
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{
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debug ("ide_reset(%d)\n", idereset);
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}
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#endif /* defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) */
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#if (CONFIG_COMMANDS & CFG_CMD_DOC)
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extern void doc_probe (ulong physadr);
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void doc_init (void)
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{
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doc_probe (CFG_DOC_BASE);
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}
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#endif
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