mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
6cbec7b3ba
Removed boot_flash_* extern variables. boot_flash_type was totally unused. The other ones were actually constants, so they have been replaced with #defines in the board config files. Signed-off-by: Luca Ceresoli <luca.ceresoli@comelit.it> Cc: Wolfgang Denk <wd@denx.de> Cc: Albert Aribaud <albert.aribaud@free.fr> Cc: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
159 lines
4.2 KiB
C
159 lines
4.2 KiB
C
/*
|
|
* (C) Copyright 2008
|
|
* Texas Instruments, <www.ti.com>
|
|
*
|
|
* Author :
|
|
* Manikandan Pillai <mani.pillai@ti.com>
|
|
*
|
|
* Initial Code from:
|
|
* Richard Woodruff <r-woodruff2@ti.com>
|
|
* Syed Mohammed Khasim <khasim@ti.com>
|
|
*
|
|
* 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 <asm/io.h>
|
|
#include <asm/arch/mem.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
#include <command.h>
|
|
|
|
struct gpmc *gpmc_cfg;
|
|
|
|
#if defined(CONFIG_CMD_NAND)
|
|
static const u32 gpmc_m_nand[GPMC_MAX_REG] = {
|
|
M_NAND_GPMC_CONFIG1,
|
|
M_NAND_GPMC_CONFIG2,
|
|
M_NAND_GPMC_CONFIG3,
|
|
M_NAND_GPMC_CONFIG4,
|
|
M_NAND_GPMC_CONFIG5,
|
|
M_NAND_GPMC_CONFIG6, 0
|
|
};
|
|
|
|
#if defined(CONFIG_ENV_IS_IN_NAND)
|
|
#define GPMC_CS 0
|
|
#else
|
|
#define GPMC_CS 1
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_ONENAND)
|
|
static const u32 gpmc_onenand[GPMC_MAX_REG] = {
|
|
ONENAND_GPMC_CONFIG1,
|
|
ONENAND_GPMC_CONFIG2,
|
|
ONENAND_GPMC_CONFIG3,
|
|
ONENAND_GPMC_CONFIG4,
|
|
ONENAND_GPMC_CONFIG5,
|
|
ONENAND_GPMC_CONFIG6, 0
|
|
};
|
|
|
|
#if defined(CONFIG_ENV_IS_IN_ONENAND)
|
|
#define GPMC_CS 0
|
|
#else
|
|
#define GPMC_CS 1
|
|
#endif
|
|
|
|
#endif
|
|
|
|
/********************************************************
|
|
* mem_ok() - test used to see if timings are correct
|
|
* for a part. Helps in guessing which part
|
|
* we are currently using.
|
|
*******************************************************/
|
|
u32 mem_ok(u32 cs)
|
|
{
|
|
u32 val1, val2, addr;
|
|
u32 pattern = 0x12345678;
|
|
|
|
addr = OMAP34XX_SDRC_CS0 + get_sdr_cs_offset(cs);
|
|
|
|
writel(0x0, addr + 0x400); /* clear pos A */
|
|
writel(pattern, addr); /* pattern to pos B */
|
|
writel(0x0, addr + 4); /* remove pattern off the bus */
|
|
val1 = readl(addr + 0x400); /* get pos A value */
|
|
val2 = readl(addr); /* get val2 */
|
|
|
|
if ((val1 != 0) || (val2 != pattern)) /* see if pos A val changed */
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
void enable_gpmc_cs_config(const u32 *gpmc_config, struct gpmc_cs *cs, u32 base,
|
|
u32 size)
|
|
{
|
|
writel(0, &cs->config7);
|
|
sdelay(1000);
|
|
/* Delay for settling */
|
|
writel(gpmc_config[0], &cs->config1);
|
|
writel(gpmc_config[1], &cs->config2);
|
|
writel(gpmc_config[2], &cs->config3);
|
|
writel(gpmc_config[3], &cs->config4);
|
|
writel(gpmc_config[4], &cs->config5);
|
|
writel(gpmc_config[5], &cs->config6);
|
|
/* Enable the config */
|
|
writel((((size & 0xF) << 8) | ((base >> 24) & 0x3F) |
|
|
(1 << 6)), &cs->config7);
|
|
sdelay(2000);
|
|
}
|
|
|
|
/*****************************************************
|
|
* gpmc_init(): init gpmc bus
|
|
* Init GPMC for x16, MuxMode (SDRAM in x32).
|
|
* This code can only be executed from SRAM or SDRAM.
|
|
*****************************************************/
|
|
void gpmc_init(void)
|
|
{
|
|
/* putting a blanket check on GPMC based on ZeBu for now */
|
|
gpmc_cfg = (struct gpmc *)GPMC_BASE;
|
|
#if defined(CONFIG_CMD_NAND) || defined(CONFIG_CMD_ONENAND)
|
|
const u32 *gpmc_config = NULL;
|
|
u32 base = 0;
|
|
u32 size = 0;
|
|
#endif
|
|
u32 config = 0;
|
|
|
|
/* global settings */
|
|
writel(0, &gpmc_cfg->irqenable); /* isr's sources masked */
|
|
writel(0, &gpmc_cfg->timeout_control);/* timeout disable */
|
|
|
|
config = readl(&gpmc_cfg->config);
|
|
config &= (~0xf00);
|
|
writel(config, &gpmc_cfg->config);
|
|
|
|
/*
|
|
* Disable the GPMC0 config set by ROM code
|
|
* It conflicts with our MPDB (both at 0x08000000)
|
|
*/
|
|
writel(0, &gpmc_cfg->cs[0].config7);
|
|
sdelay(1000);
|
|
|
|
#if defined(CONFIG_CMD_NAND) /* CS 0 */
|
|
gpmc_config = gpmc_m_nand;
|
|
|
|
base = PISMO1_NAND_BASE;
|
|
size = PISMO1_NAND_SIZE;
|
|
enable_gpmc_cs_config(gpmc_config, &gpmc_cfg->cs[0], base, size);
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_ONENAND)
|
|
gpmc_config = gpmc_onenand;
|
|
base = PISMO1_ONEN_BASE;
|
|
size = PISMO1_ONEN_SIZE;
|
|
enable_gpmc_cs_config(gpmc_config, &gpmc_cfg->cs[0], base, size);
|
|
#endif
|
|
}
|