mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
a05e3f9a08
The commit ecad289fc6
(OneNAND: Remove
unused read_spareram and add unlock_all as kernel does) forgot to remove
a local reference to read_spareram in board/micronas/vct/ebi_onenand.c,
which causes the following build failure when configured with OneNAND:
ebi_onenand.c: In function 'onenand_board_init':
ebi_onenand.c:196: error: 'struct onenand_chip' has no member named 'read_spareram'
make[1]: *** [ebi_onenand.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [board/micronas/vct/libvct.a] Error 2
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
Acked-by: Stefan Roese <sr@denx.de>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
197 lines
5.3 KiB
C
197 lines
5.3 KiB
C
/*
|
|
* (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering
|
|
*
|
|
* 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 <linux/mtd/mtd.h>
|
|
#include <linux/mtd/onenand.h>
|
|
#include "vct.h"
|
|
|
|
#define BURST_SIZE_WORDS 4
|
|
|
|
static u16 ebi_nand_read_word(void __iomem *addr)
|
|
{
|
|
reg_write(EBI_CPU_IO_ACCS(EBI_BASE), (EXT_DEVICE_CHANNEL_2 | (u32)addr));
|
|
ebi_wait();
|
|
|
|
return reg_read(EBI_IO_ACCS_DATA(EBI_BASE)) >> 16;
|
|
}
|
|
|
|
static void ebi_nand_write_word(u16 data, void __iomem * addr)
|
|
{
|
|
ebi_wait();
|
|
reg_write(EBI_IO_ACCS_DATA(EBI_BASE), (data << 16));
|
|
reg_write(EBI_CPU_IO_ACCS(EBI_BASE),
|
|
EXT_DEVICE_CHANNEL_2 | EBI_CPU_WRITE | (u32)addr);
|
|
ebi_wait();
|
|
}
|
|
|
|
/*
|
|
* EBI initialization for OneNAND FLASH access
|
|
*/
|
|
int ebi_init_onenand(void)
|
|
{
|
|
reg_write(EBI_DEV1_CONFIG1(EBI_BASE), 0x83000);
|
|
|
|
reg_write(EBI_DEV2_CONFIG1(EBI_BASE), 0x00403002);
|
|
reg_write(EBI_DEV2_CONFIG2(EBI_BASE), 0x50);
|
|
|
|
reg_write(EBI_DEV3_CONFIG1(EBI_BASE), 0x00403002);
|
|
reg_write(EBI_DEV3_CONFIG2(EBI_BASE), 0x0); /* byte/word ordering */
|
|
|
|
reg_write(EBI_DEV2_TIM1_RD1(EBI_BASE), 0x00504000);
|
|
reg_write(EBI_DEV2_TIM1_RD2(EBI_BASE), 0x00001000);
|
|
reg_write(EBI_DEV2_TIM1_WR1(EBI_BASE), 0x12002223);
|
|
reg_write(EBI_DEV2_TIM1_WR2(EBI_BASE), 0x3FC02220);
|
|
reg_write(EBI_DEV3_TIM1_RD1(EBI_BASE), 0x00504000);
|
|
reg_write(EBI_DEV3_TIM1_RD2(EBI_BASE), 0x00001000);
|
|
reg_write(EBI_DEV3_TIM1_WR1(EBI_BASE), 0x05001000);
|
|
reg_write(EBI_DEV3_TIM1_WR2(EBI_BASE), 0x00010200);
|
|
|
|
reg_write(EBI_DEV2_TIM_EXT(EBI_BASE), 0xFFF00000);
|
|
reg_write(EBI_DEV2_EXT_ACC(EBI_BASE), 0x0FFFFFFF);
|
|
|
|
reg_write(EBI_DEV3_TIM_EXT(EBI_BASE), 0xFFF00000);
|
|
reg_write(EBI_DEV3_EXT_ACC(EBI_BASE), 0x0FFFFFFF);
|
|
|
|
/* prepare DMA configuration for EBI */
|
|
reg_write(EBI_DEV3_FIFO_CONFIG(EBI_BASE), 0x0101ff00);
|
|
|
|
/* READ only no byte order change, TAG 1 used */
|
|
reg_write(EBI_DEV3_DMA_CONFIG2(EBI_BASE), 0x00000004);
|
|
|
|
reg_write(EBI_TAG1_SYS_ID(EBI_BASE), 0x0); /* SCC DMA channel 0 */
|
|
reg_write(EBI_TAG2_SYS_ID(EBI_BASE), 0x1);
|
|
reg_write(EBI_TAG3_SYS_ID(EBI_BASE), 0x2);
|
|
reg_write(EBI_TAG4_SYS_ID(EBI_BASE), 0x3);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void *memcpy_16_from_onenand(void *dst, const void *src, unsigned int len)
|
|
{
|
|
void *ret = dst;
|
|
u16 *d = dst;
|
|
u16 *s = (u16 *)src;
|
|
|
|
len >>= 1;
|
|
while (len-- > 0)
|
|
*d++ = ebi_nand_read_word(s++);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void *memcpy_32_from_onenand(void *dst, const void *src, unsigned int len)
|
|
{
|
|
void *ret = dst;
|
|
u32 *d = (u32 *)dst;
|
|
u32 s = (u32)src;
|
|
u32 bytes_per_block = BURST_SIZE_WORDS * sizeof(int);
|
|
u32 n_blocks = len / bytes_per_block;
|
|
u32 block = 0;
|
|
u32 burst_word;
|
|
|
|
for (block = 0; block < n_blocks; block++) {
|
|
/* Trigger read channel 3 */
|
|
reg_write(EBI_CPU_IO_ACCS(EBI_BASE),
|
|
(EXT_DEVICE_CHANNEL_3 | (s + (block * bytes_per_block))));
|
|
/* Poll status to see whether read has finished */
|
|
ebi_wait();
|
|
|
|
/* Squirrel the data away in a safe place */
|
|
for (burst_word = 0; burst_word < BURST_SIZE_WORDS; burst_word++)
|
|
*d++ = reg_read(EBI_IO_ACCS_DATA(EBI_BASE));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void *memcpy_16_to_onenand(void *dst, const void *src, unsigned int len)
|
|
{
|
|
void *ret = dst;
|
|
u16 *d = dst;
|
|
u16 *s = (u16 *)src;
|
|
|
|
len >>= 1;
|
|
while (len-- > 0)
|
|
ebi_nand_write_word(*s++, d++);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline int onenand_bufferram_offset(struct mtd_info *mtd, int area)
|
|
{
|
|
struct onenand_chip *this = mtd->priv;
|
|
|
|
if (ONENAND_CURRENT_BUFFERRAM(this)) {
|
|
if (area == ONENAND_DATARAM)
|
|
return mtd->writesize;
|
|
if (area == ONENAND_SPARERAM)
|
|
return mtd->oobsize;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ebi_read_bufferram(struct mtd_info *mtd, loff_t addr, int area,
|
|
unsigned char *buffer, int offset,
|
|
size_t count)
|
|
{
|
|
struct onenand_chip *this = mtd->priv;
|
|
void __iomem *bufferram;
|
|
|
|
bufferram = this->base + area;
|
|
bufferram += onenand_bufferram_offset(mtd, area);
|
|
|
|
if (count < 4)
|
|
memcpy_16_from_onenand(buffer, bufferram + offset, count);
|
|
else
|
|
memcpy_32_from_onenand(buffer, bufferram + offset, count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ebi_write_bufferram(struct mtd_info *mtd, loff_t addr, int area,
|
|
const unsigned char *buffer, int offset,
|
|
size_t count)
|
|
{
|
|
struct onenand_chip *this = mtd->priv;
|
|
void __iomem *bufferram;
|
|
|
|
bufferram = this->base + area;
|
|
bufferram += onenand_bufferram_offset(mtd, area);
|
|
|
|
memcpy_16_to_onenand(bufferram + offset, buffer, count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void onenand_board_init(struct mtd_info *mtd)
|
|
{
|
|
struct onenand_chip *chip = mtd->priv;
|
|
|
|
/*
|
|
* Insert board specific OneNAND access functions
|
|
*/
|
|
chip->read_word = ebi_nand_read_word;
|
|
chip->write_word = ebi_nand_write_word;
|
|
|
|
chip->read_bufferram = ebi_read_bufferram;
|
|
chip->write_bufferram = ebi_write_bufferram;
|
|
}
|