upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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296 lines
6.3 KiB
296 lines
6.3 KiB
/*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* (C) Copyright 2002
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* David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
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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 <s3c2410.h>
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#include <i2c.h>
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#include "vcma9.h"
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#include "../common/common_util.h"
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/* ------------------------------------------------------------------------- */
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#define FCLK_SPEED 1
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#if FCLK_SPEED==0 /* Fout = 203MHz, Fin = 12MHz for Audio */
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#define M_MDIV 0xC3
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#define M_PDIV 0x4
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#define M_SDIV 0x1
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#elif FCLK_SPEED==1 /* Fout = 202.8MHz */
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#define M_MDIV 0xA1
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#define M_PDIV 0x3
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#define M_SDIV 0x1
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#endif
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#define USB_CLOCK 1
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#if USB_CLOCK==0
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#define U_M_MDIV 0xA1
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#define U_M_PDIV 0x3
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#define U_M_SDIV 0x1
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#elif USB_CLOCK==1
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#define U_M_MDIV 0x48
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#define U_M_PDIV 0x3
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#define U_M_SDIV 0x2
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#endif
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static inline void delay(unsigned long loops)
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{
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__asm__ volatile ("1:\n"
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"subs %0, %1, #1\n"
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"bne 1b":"=r" (loops):"0" (loops));
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}
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/*
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* Miscellaneous platform dependent initialisations
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*/
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int board_init(void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
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S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
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/* to reduce PLL lock time, adjust the LOCKTIME register */
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clk_power->LOCKTIME = 0xFFFFFF;
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/* configure MPLL */
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clk_power->MPLLCON = ((M_MDIV << 12) + (M_PDIV << 4) + M_SDIV);
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/* some delay between MPLL and UPLL */
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delay (4000);
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/* configure UPLL */
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clk_power->UPLLCON = ((U_M_MDIV << 12) + (U_M_PDIV << 4) + U_M_SDIV);
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/* some delay between MPLL and UPLL */
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delay (8000);
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/* set up the I/O ports */
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gpio->GPACON = 0x007FFFFF;
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gpio->GPBCON = 0x002AAAAA;
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gpio->GPBUP = 0x000002BF;
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gpio->GPCCON = 0xAAAAAAAA;
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gpio->GPCUP = 0x0000FFFF;
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gpio->GPDCON = 0xAAAAAAAA;
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gpio->GPDUP = 0x0000FFFF;
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gpio->GPECON = 0xAAAAAAAA;
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gpio->GPEUP = 0x000037F7;
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gpio->GPFCON = 0x00000000;
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gpio->GPFUP = 0x00000000;
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gpio->GPGCON = 0xFFEAFF5A;
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gpio->GPGUP = 0x0000F0DC;
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gpio->GPHCON = 0x0028AAAA;
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gpio->GPHUP = 0x00000656;
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/* setup correct IRQ modes for NIC */
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gpio->EXTINT2 = (gpio->EXTINT2 & ~(7<<8)) | (4<<8); /* rising edge mode */
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/* select USB port 2 to be host or device (fix to host for now) */
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gpio->MISCCR |= 0x08;
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/* init serial */
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gd->baudrate = CONFIG_BAUDRATE;
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gd->have_console = 1;
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serial_init();
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/* arch number of VCMA9-Board */
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gd->bd->bi_arch_number = 227;
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/* adress of boot parameters */
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gd->bd->bi_boot_params = 0x30000100;
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icache_enable();
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dcache_enable();
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return 0;
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}
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int dram_init(void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
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gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
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return 0;
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}
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/*
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* NAND flash initialization.
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*/
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#if (CONFIG_COMMANDS & CFG_CMD_NAND)
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extern void
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nand_probe(ulong physadr);
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static inline void NF_Reset(void)
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{
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int i;
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NF_SetCE(NFCE_LOW);
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NF_Cmd(0xFF); /* reset command */
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for(i = 0; i < 10; i++); /* tWB = 100ns. */
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NF_WaitRB(); /* wait 200~500us; */
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NF_SetCE(NFCE_HIGH);
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}
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static inline void NF_Init(void)
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{
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#define TACLS 0
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#define TWRPH0 3
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#define TWRPH1 0
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NF_Conf((1<<15)|(0<<14)|(0<<13)|(1<<12)|(1<<11)|(TACLS<<8)|(TWRPH0<<4)|(TWRPH1<<0));
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//nand->NFCONF = (1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(TACLS<<8)|(TWRPH0<<4)|(TWRPH1<<0);
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// 1 1 1 1, 1 xxx, r xxx, r xxx
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// En 512B 4step ECCR nFCE=H tACLS tWRPH0 tWRPH1
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NF_Reset();
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}
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void
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nand_init(void)
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{
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S3C2410_NAND * const nand = S3C2410_GetBase_NAND();
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NF_Init();
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printf("NAND flash probing at 0x%.8lX\n", (ulong)nand);
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nand_probe((ulong)nand);
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}
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#endif
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/*
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* Get some Board/PLD Info
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*/
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static uchar Get_PLD_ID(void)
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{
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return(*(volatile uchar *)PLD_ID_REG);
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}
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static uchar Get_PLD_BOARD(void)
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{
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return(*(volatile uchar *)PLD_BOARD_REG);
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}
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static uchar Get_PLD_Version(void)
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{
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return((Get_PLD_ID() >> 4) & 0x0F);
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}
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static uchar Get_PLD_Revision(void)
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{
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return(Get_PLD_ID() & 0x0F);
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}
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static int Get_Board_Config(void)
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{
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uchar config = Get_PLD_BOARD() & 0x03;
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if (config == 3)
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return 1;
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else
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return 0;
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}
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static uchar Get_Board_PCB(void)
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{
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return(((Get_PLD_BOARD() >> 4) & 0x03) + 'A');
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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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int checkboard(void)
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{
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unsigned char s[50];
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int i;
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backup_t *b = (backup_t *) s;
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puts("Board: ");
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i = getenv_r("serial#", s, 32);
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if ((i < 0) || strncmp (s, "VCMA9", 5)) {
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get_backup_values (b);
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if (strncmp (b->signature, "MPL\0", 4) != 0) {
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puts ("### No HW ID - assuming VCMA9");
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} else {
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b->serial_name[5] = 0;
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printf ("%s-%d PCB Rev %c SN: %s", b->serial_name, Get_Board_Config(),
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Get_Board_PCB(), &b->serial_name[6]);
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}
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} else {
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s[5] = 0;
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printf ("%s-%d PCB Rev %c SN: %s", s, Get_Board_Config(), Get_Board_PCB(),
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&s[6]);
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}
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printf("\n");
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return(0);
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}
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void print_vcma9_rev(void)
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{
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printf("Board: VCMA9-%d PCB Rev: %c (PLD Ver: %d, Rev: %d)\n",
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Get_Board_Config(), Get_Board_PCB(),
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Get_PLD_Version(), Get_PLD_Revision());
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}
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extern void mem_test_reloc(void);
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int last_stage_init(void)
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{
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mem_test_reloc();
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print_vcma9_rev();
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show_stdio_dev();
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check_env();
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return 0;
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}
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/***************************************************************************
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* some helping routines
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*/
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int overwrite_console(void)
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{
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/* return TRUE if console should be overwritten */
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return 0;
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}
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/************************************************************************
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* Print VCMA9 Info
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************************************************************************/
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void print_vcma9_info(void)
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{
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print_vcma9_rev();
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}
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