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This commit is contained in:
Wolfgang Denk
2010-04-01 11:28:32 +02:00
parent ca6e1c136d fd03ea8964
commit ffa37fc98d
136 changed files with 3340 additions and 2311 deletions
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52
drivers/fpga/spartan3.c
View File

@@ -385,34 +385,38 @@ static int Spartan3_ss_load (Xilinx_desc * desc, void *buf, size_t bsize)
} while ((*fn->init) (cookie));
/* Load the data */
while (bytecount < bsize) {
if(*fn->bwr)
(*fn->bwr) (data, bsize, TRUE, cookie);
else {
while (bytecount < bsize) {
/* Xilinx detects an error if INIT goes low (active)
while DONE is low (inactive) */
if ((*fn->done) (cookie) == 0 && (*fn->init) (cookie)) {
puts ("** CRC error during FPGA load.\n");
return (FPGA_FAIL);
}
val = data [bytecount ++];
i = 8;
do {
/* Deassert the clock */
(*fn->clk) (FALSE, TRUE, cookie);
CONFIG_FPGA_DELAY ();
/* Write data */
(*fn->wr) ((val & 0x80), TRUE, cookie);
CONFIG_FPGA_DELAY ();
/* Assert the clock */
(*fn->clk) (TRUE, TRUE, cookie);
CONFIG_FPGA_DELAY ();
val <<= 1;
i --;
} while (i > 0);
/* Xilinx detects an error if INIT goes low (active)
while DONE is low (inactive) */
if ((*fn->done) (cookie) == 0 && (*fn->init) (cookie)) {
puts ("** CRC error during FPGA load.\n");
return (FPGA_FAIL);
}
val = data [bytecount ++];
i = 8;
do {
/* Deassert the clock */
(*fn->clk) (FALSE, TRUE, cookie);
CONFIG_FPGA_DELAY ();
/* Write data */
(*fn->wr) ((val & 0x80), TRUE, cookie);
CONFIG_FPGA_DELAY ();
/* Assert the clock */
(*fn->clk) (TRUE, TRUE, cookie);
CONFIG_FPGA_DELAY ();
val <<= 1;
i --;
} while (i > 0);
#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK
if (bytecount % (bsize / 40) == 0)
putc ('.'); /* let them know we are alive */
if (bytecount % (bsize / 40) == 0)
putc ('.'); /* let them know we are alive */
#endif
}
}
CONFIG_FPGA_DELAY ();

11
drivers/input/ps2ser.c
View File

@@ -36,8 +36,6 @@ DECLARE_GLOBAL_DATA_PTR;
#define PSC_BASE MPC5XXX_PSC2
#elif CONFIG_PS2SERIAL == 3
#define PSC_BASE MPC5XXX_PSC3
#elif defined(CONFIG_MGT5100)
#error CONFIG_PS2SERIAL must be in 1, 2 or 3
#elif CONFIG_PS2SERIAL == 4
#define PSC_BASE MPC5XXX_PSC4
#elif CONFIG_PS2SERIAL == 5
@@ -87,23 +85,14 @@ int ps2ser_init(void)
psc->command = PSC_SEL_MODE_REG_1;
/* select clock sources */
#if defined(CONFIG_MGT5100)
psc->psc_clock_select = 0xdd00;
baseclk = (CONFIG_SYS_MPC5XXX_CLKIN + 16) / 32;
#elif defined(CONFIG_MPC5200)
psc->psc_clock_select = 0;
baseclk = (gd->ipb_clk + 16) / 32;
#endif
/* switch to UART mode */
psc->sicr = 0;
/* configure parity, bit length and so on */
#if defined(CONFIG_MGT5100)
psc->mode = PSC_MODE_ERR | PSC_MODE_8_BITS | PSC_MODE_PARNONE;
#elif defined(CONFIG_MPC5200)
psc->mode = PSC_MODE_8_BITS | PSC_MODE_PARNONE;
#endif
psc->mode = PSC_MODE_ONE_STOP;
/* set up UART divisor */

93
drivers/mtd/cfi_flash.c
View File

@@ -605,6 +605,63 @@ static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
return retcode;
}
static int use_flash_status_poll(flash_info_t *info)
{
#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL
if (info->vendor == CFI_CMDSET_AMD_EXTENDED ||
info->vendor == CFI_CMDSET_AMD_STANDARD)
return 1;
#endif
return 0;
}
static int flash_status_poll(flash_info_t *info, void *src, void *dst,
ulong tout, char *prompt)
{
#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL
ulong start;
int ready;
#if CONFIG_SYS_HZ != 1000
if ((ulong)CONFIG_SYS_HZ > 100000)
tout *= (ulong)CONFIG_SYS_HZ / 1000; /* for a big HZ, avoid overflow */
else
tout = DIV_ROUND_UP(tout * (ulong)CONFIG_SYS_HZ, 1000);
#endif
/* Wait for command completion */
start = get_timer(0);
while (1) {
switch (info->portwidth) {
case FLASH_CFI_8BIT:
ready = flash_read8(dst) == flash_read8(src);
break;
case FLASH_CFI_16BIT:
ready = flash_read16(dst) == flash_read16(src);
break;
case FLASH_CFI_32BIT:
ready = flash_read32(dst) == flash_read32(src);
break;
case FLASH_CFI_64BIT:
ready = flash_read64(dst) == flash_read64(src);
break;
default:
ready = 0;
break;
}
if (ready)
break;
if (get_timer(start) > tout) {
printf("Flash %s timeout at address %lx data %lx\n",
prompt, (ulong)dst, (ulong)flash_read8(dst));
return ERR_TIMOUT;
}
udelay(1); /* also triggers watchdog */
}
#endif /* CONFIG_SYS_CFI_FLASH_STATUS_POLL */
return ERR_OK;
}
/*-----------------------------------------------------------------------
*/
static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
@@ -752,7 +809,12 @@ static int flash_write_cfiword (flash_info_t * info, ulong dest,
if (!sect_found)
sect = find_sector (info, dest);
return flash_full_status_check (info, sect, info->write_tout, "write");
if (use_flash_status_poll(info))
return flash_status_poll(info, &cword, dstaddr,
info->write_tout, "write");
else
return flash_full_status_check(info, sect,
info->write_tout, "write");
}
#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
@@ -914,9 +976,15 @@ static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
}
flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_BUFFER_CONFIRM);
retcode = flash_full_status_check (info, sector,
info->buffer_write_tout,
"buffer write");
if (use_flash_status_poll(info))
retcode = flash_status_poll(info, src - (1 << shift),
dst - (1 << shift),
info->buffer_write_tout,
"buffer write");
else
retcode = flash_full_status_check(info, sector,
info->buffer_write_tout,
"buffer write");
break;
default:
@@ -938,6 +1006,7 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
int rcode = 0;
int prot;
flash_sect_t sect;
int st;
if (info->flash_id != FLASH_MAN_CFI) {
puts ("Can't erase unknown flash type - aborted\n");
@@ -1001,10 +1070,20 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
break;
}
if (flash_full_status_check
(info, sect, info->erase_blk_tout, "erase")) {
if (use_flash_status_poll(info)) {
cfiword_t cword = (cfiword_t)0xffffffffffffffffULL;
void *dest;
dest = flash_map(info, sect, 0);
st = flash_status_poll(info, &cword, dest,
info->erase_blk_tout, "erase");
flash_unmap(info, sect, 0, dest);
} else
st = flash_full_status_check(info, sect,
info->erase_blk_tout,
"erase");
if (st)
rcode = 1;
} else if (flash_verbose)
else if (flash_verbose)
putc ('.');
}
}

265
drivers/mtd/nand/atmel_nand.c
View File

@@ -31,6 +31,209 @@
#include <nand.h>
#ifdef CONFIG_ATMEL_NAND_HWECC
/* Register access macros */
#define ecc_readl(add, reg) \
readl(AT91_BASE_SYS + add + ATMEL_ECC_##reg)
#define ecc_writel(add, reg, value) \
writel((value), AT91_BASE_SYS + add + ATMEL_ECC_##reg)
#include "atmel_nand_ecc.h" /* Hardware ECC registers */
/* oob layout for large page size
* bad block info is on bytes 0 and 1
* the bytes have to be consecutives to avoid
* several NAND_CMD_RNDOUT during read
*/
static struct nand_ecclayout atmel_oobinfo_large = {
.eccbytes = 4,
.eccpos = {60, 61, 62, 63},
.oobfree = {
{2, 58}
},
};
/* oob layout for small page size
* bad block info is on bytes 4 and 5
* the bytes have to be consecutives to avoid
* several NAND_CMD_RNDOUT during read
*/
static struct nand_ecclayout atmel_oobinfo_small = {
.eccbytes = 4,
.eccpos = {0, 1, 2, 3},
.oobfree = {
{6, 10}
},
};
/*
* Calculate HW ECC
*
* function called after a write
*
* mtd: MTD block structure
* dat: raw data (unused)
* ecc_code: buffer for ECC
*/
static int atmel_nand_calculate(struct mtd_info *mtd,
const u_char *dat, unsigned char *ecc_code)
{
struct nand_chip *nand_chip = mtd->priv;
unsigned int ecc_value;
/* get the first 2 ECC bytes */
ecc_value = ecc_readl(CONFIG_SYS_NAND_ECC_BASE, PR);
ecc_code[0] = ecc_value & 0xFF;
ecc_code[1] = (ecc_value >> 8) & 0xFF;
/* get the last 2 ECC bytes */
ecc_value = ecc_readl(CONFIG_SYS_NAND_ECC_BASE, NPR) & ATMEL_ECC_NPARITY;
ecc_code[2] = ecc_value & 0xFF;
ecc_code[3] = (ecc_value >> 8) & 0xFF;
return 0;
}
/*
* HW ECC read page function
*
* mtd: mtd info structure
* chip: nand chip info structure
* buf: buffer to store read data
*/
static int atmel_nand_read_page(struct mtd_info *mtd,
struct nand_chip *chip, uint8_t *buf, int page)
{
int eccsize = chip->ecc.size;
int eccbytes = chip->ecc.bytes;
uint32_t *eccpos = chip->ecc.layout->eccpos;
uint8_t *p = buf;
uint8_t *oob = chip->oob_poi;
uint8_t *ecc_pos;
int stat;
/* read the page */
chip->read_buf(mtd, p, eccsize);
/* move to ECC position if needed */
if (eccpos[0] != 0) {
/* This only works on large pages
* because the ECC controller waits for
* NAND_CMD_RNDOUTSTART after the
* NAND_CMD_RNDOUT.
* anyway, for small pages, the eccpos[0] == 0
*/
chip->cmdfunc(mtd, NAND_CMD_RNDOUT,
mtd->writesize + eccpos[0], -1);
}
/* the ECC controller needs to read the ECC just after the data */
ecc_pos = oob + eccpos[0];
chip->read_buf(mtd, ecc_pos, eccbytes);
/* check if there's an error */
stat = chip->ecc.correct(mtd, p, oob, NULL);
if (stat < 0)
mtd->ecc_stats.failed++;
else
mtd->ecc_stats.corrected += stat;
/* get back to oob start (end of page) */
chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize, -1);
/* read the oob */
chip->read_buf(mtd, oob, mtd->oobsize);
return 0;
}
/*
* HW ECC Correction
*
* function called after a read
*
* mtd: MTD block structure
* dat: raw data read from the chip
* read_ecc: ECC from the chip (unused)
* isnull: unused
*
* Detect and correct a 1 bit error for a page
*/
static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat,
u_char *read_ecc, u_char *isnull)
{
struct nand_chip *nand_chip = mtd->priv;
unsigned int ecc_status, ecc_parity, ecc_mode;
unsigned int ecc_word, ecc_bit;
/* get the status from the Status Register */
ecc_status = ecc_readl(CONFIG_SYS_NAND_ECC_BASE, SR);
/* if there's no error */
if (likely(!(ecc_status & ATMEL_ECC_RECERR)))
return 0;
/* get error bit offset (4 bits) */
ecc_bit = ecc_readl(CONFIG_SYS_NAND_ECC_BASE, PR) & ATMEL_ECC_BITADDR;
/* get word address (12 bits) */
ecc_word = ecc_readl(CONFIG_SYS_NAND_ECC_BASE, PR) & ATMEL_ECC_WORDADDR;
ecc_word >>= 4;
/* if there are multiple errors */
if (ecc_status & ATMEL_ECC_MULERR) {
/* check if it is a freshly erased block
* (filled with 0xff) */
if ((ecc_bit == ATMEL_ECC_BITADDR)
&& (ecc_word == (ATMEL_ECC_WORDADDR >> 4))) {
/* the block has just been erased, return OK */
return 0;
}
/* it doesn't seems to be a freshly
* erased block.
* We can't correct so many errors */
printk(KERN_WARNING "atmel_nand : multiple errors detected."
" Unable to correct.\n");
return -EIO;
}
/* if there's a single bit error : we can correct it */
if (ecc_status & ATMEL_ECC_ECCERR) {
/* there's nothing much to do here.
* the bit error is on the ECC itself.
*/
printk(KERN_WARNING "atmel_nand : one bit error on ECC code."
" Nothing to correct\n");
return 0;
}
printk(KERN_WARNING "atmel_nand : one bit error on data."
" (word offset in the page :"
" 0x%x bit offset : 0x%x)\n",
ecc_word, ecc_bit);
/* correct the error */
if (nand_chip->options & NAND_BUSWIDTH_16) {
/* 16 bits words */
((unsigned short *) dat)[ecc_word] ^= (1 << ecc_bit);
} else {
/* 8 bits words */
dat[ecc_word] ^= (1 << ecc_bit);
}
printk(KERN_WARNING "atmel_nand : error corrected\n");
return 1;
}
/*
* Enable HW ECC : unused on most chips
*/
static void atmel_nand_hwctl(struct mtd_info *mtd, int mode)
{
}
#endif
static void at91_nand_hwcontrol(struct mtd_info *mtd,
int cmd, unsigned int ctrl)
{
@@ -64,6 +267,11 @@ static int at91_nand_ready(struct mtd_info *mtd)
int board_nand_init(struct nand_chip *nand)
{
#ifdef CONFIG_ATMEL_NAND_HWECC
static int chip_nr = 0;
struct mtd_info *mtd;
#endif
nand->ecc.mode = NAND_ECC_SOFT;
#ifdef CONFIG_SYS_NAND_DBW_16
nand->options = NAND_BUSWIDTH_16;
@@ -74,5 +282,62 @@ int board_nand_init(struct nand_chip *nand)
#endif
nand->chip_delay = 20;
#ifdef CONFIG_ATMEL_NAND_HWECC
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.calculate = atmel_nand_calculate;
nand->ecc.correct = atmel_nand_correct;
nand->ecc.hwctl = atmel_nand_hwctl;
nand->ecc.read_page = atmel_nand_read_page;
nand->ecc.bytes = 4;
#endif
#ifdef CONFIG_ATMEL_NAND_HWECC
mtd = &nand_info[chip_nr++];
mtd->priv = nand;
/* Detect NAND chips */
if (nand_scan_ident(mtd, 1)) {
printk(KERN_WARNING "NAND Flash not found !\n");
return -ENXIO;
}
if (nand->ecc.mode == NAND_ECC_HW) {
/* ECC is calculated for the whole page (1 step) */
nand->ecc.size = mtd->writesize;
/* set ECC page size and oob layout */
switch (mtd->writesize) {
case 512:
nand->ecc.layout = &atmel_oobinfo_small;
ecc_writel(CONFIG_SYS_NAND_ECC_BASE, MR, ATMEL_ECC_PAGESIZE_528);
break;
case 1024:
nand->ecc.layout = &atmel_oobinfo_large;
ecc_writel(CONFIG_SYS_NAND_ECC_BASE, MR, ATMEL_ECC_PAGESIZE_1056);
break;
case 2048:
nand->ecc.layout = &atmel_oobinfo_large;
ecc_writel(CONFIG_SYS_NAND_ECC_BASE, MR, ATMEL_ECC_PAGESIZE_2112);
break;
case 4096:
nand->ecc.layout = &atmel_oobinfo_large;
ecc_writel(CONFIG_SYS_NAND_ECC_BASE, MR, ATMEL_ECC_PAGESIZE_4224);
break;
default:
/* page size not handled by HW ECC */
/* switching back to soft ECC */
nand->ecc.mode = NAND_ECC_SOFT;
nand->ecc.calculate = NULL;
nand->ecc.correct = NULL;
nand->ecc.hwctl = NULL;
nand->ecc.read_page = NULL;
nand->ecc.postpad = 0;
nand->ecc.prepad = 0;
nand->ecc.bytes = 0;
break;
}
}
#endif
return 0;
}

36
drivers/mtd/nand/atmel_nand_ecc.h Normal file
View File

@@ -0,0 +1,36 @@
/*
* Error Corrected Code Controller (ECC) - System peripherals regsters.
* Based on AT91SAM9260 datasheet revision B.
*
* 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.
*/
#ifndef ATMEL_NAND_ECC_H
#define ATMEL_NAND_ECC_H
#define ATMEL_ECC_CR 0x00 /* Control register */
#define ATMEL_ECC_RST (1 << 0) /* Reset parity */
#define ATMEL_ECC_MR 0x04 /* Mode register */
#define ATMEL_ECC_PAGESIZE (3 << 0) /* Page Size */
#define ATMEL_ECC_PAGESIZE_528 (0)
#define ATMEL_ECC_PAGESIZE_1056 (1)
#define ATMEL_ECC_PAGESIZE_2112 (2)
#define ATMEL_ECC_PAGESIZE_4224 (3)
#define ATMEL_ECC_SR 0x08 /* Status register */
#define ATMEL_ECC_RECERR (1 << 0) /* Recoverable Error */
#define ATMEL_ECC_ECCERR (1 << 1) /* ECC Single Bit Error */
#define ATMEL_ECC_MULERR (1 << 2) /* Multiple Errors */
#define ATMEL_ECC_PR 0x0c /* Parity register */
#define ATMEL_ECC_BITADDR (0xf << 0) /* Bit Error Address */
#define ATMEL_ECC_WORDADDR (0xfff << 4) /* Word Error Address */
#define ATMEL_ECC_NPR 0x10 /* NParity register */
#define ATMEL_ECC_NPARITY (0xffff << 0) /* NParity */
#endif

128
drivers/mtd/nand/davinci_nand.c
View File

@@ -57,8 +57,6 @@
#define ECC_STATE_ERR_CORR_COMP_P 0x2
#define ECC_STATE_ERR_CORR_COMP_N 0x3
static emif_registers *const emif_regs = (void *) DAVINCI_ASYNC_EMIF_CNTRL_BASE;
/*
* Exploit the little endianness of the ARM to do multi-byte transfers
* per device read. This can perform over twice as quickly as individual
@@ -93,7 +91,7 @@ static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
/* copy aligned data */
while (len >= 4) {
*(u32 *)buf = readl(nand);
*(u32 *)buf = __raw_readl(nand);
buf += 4;
len -= 4;
}
@@ -138,7 +136,7 @@ static void nand_davinci_write_buf(struct mtd_info *mtd, const uint8_t *buf,
/* copy aligned data */
while (len >= 4) {
writel(*(u32 *)buf, nand);
__raw_writel(*(u32 *)buf, nand);
buf += 4;
len -= 4;
}
@@ -156,7 +154,8 @@ static void nand_davinci_write_buf(struct mtd_info *mtd, const uint8_t *buf,
}
}
static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd,
unsigned int ctrl)
{
struct nand_chip *this = mtd->priv;
u_int32_t IO_ADDR_W = (u_int32_t)this->IO_ADDR_W;
@@ -164,9 +163,9 @@ static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int c
if (ctrl & NAND_CTRL_CHANGE) {
IO_ADDR_W &= ~(MASK_ALE|MASK_CLE);
if ( ctrl & NAND_CLE )
if (ctrl & NAND_CLE)
IO_ADDR_W |= MASK_CLE;
if ( ctrl & NAND_ALE )
if (ctrl & NAND_ALE)
IO_ADDR_W |= MASK_ALE;
this->IO_ADDR_W = (void __iomem *) IO_ADDR_W;
}
@@ -181,24 +180,26 @@ static void nand_davinci_enable_hwecc(struct mtd_info *mtd, int mode)
{
u_int32_t val;
(void)readl(&(emif_regs->NANDFECC[CONFIG_SYS_NAND_CS - 2]));
(void)__raw_readl(&(davinci_emif_regs->nandfecc[
CONFIG_SYS_NAND_CS - 2]));
val = readl(&emif_regs->NANDFCR);
val = __raw_readl(&davinci_emif_regs->nandfcr);
val |= DAVINCI_NANDFCR_NAND_ENABLE(CONFIG_SYS_NAND_CS);
val |= DAVINCI_NANDFCR_1BIT_ECC_START(CONFIG_SYS_NAND_CS);
writel(val, &emif_regs->NANDFCR);
__raw_writel(val, &davinci_emif_regs->nandfcr);
}
static u_int32_t nand_davinci_readecc(struct mtd_info *mtd, u_int32_t region)
{
u_int32_t ecc = 0;
ecc = readl(&(emif_regs->NANDFECC[region - 1]));
ecc = __raw_readl(&(davinci_emif_regs->nandfecc[region - 1]));
return(ecc);
return ecc;
}
static int nand_davinci_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
static int nand_davinci_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
u_char *ecc_code)
{
u_int32_t tmp;
const int region = 1;
@@ -232,7 +233,8 @@ static int nand_davinci_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u
return 0;
}
static int nand_davinci_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)
static int nand_davinci_correct_data(struct mtd_info *mtd, u_char *dat,
u_char *read_ecc, u_char *calc_ecc)
{
struct nand_chip *this = mtd->priv;
u_int32_t ecc_nand = read_ecc[0] | (read_ecc[1] << 8) |
@@ -268,7 +270,7 @@ static int nand_davinci_correct_data(struct mtd_info *mtd, u_char *dat, u_char *
return -1;
}
}
return(0);
return 0;
}
#endif /* CONFIG_SYS_NAND_HW_ECC */
@@ -315,15 +317,15 @@ static void nand_davinci_4bit_enable_hwecc(struct mtd_info *mtd, int mode)
* Start a new ECC calculation for reading or writing 512 bytes
* of data.
*/
val = readl(&emif_regs->NANDFCR);
val = __raw_readl(&davinci_emif_regs->nandfcr);
val &= ~DAVINCI_NANDFCR_4BIT_ECC_SEL_MASK;
val |= DAVINCI_NANDFCR_NAND_ENABLE(CONFIG_SYS_NAND_CS);
val |= DAVINCI_NANDFCR_4BIT_ECC_SEL(CONFIG_SYS_NAND_CS);
val |= DAVINCI_NANDFCR_4BIT_ECC_START;
writel(val, &emif_regs->NANDFCR);
__raw_writel(val, &davinci_emif_regs->nandfcr);
break;
case NAND_ECC_READSYN:
val = emif_regs->NAND4BITECC1;
val = __raw_readl(&davinci_emif_regs->nand4bitecc[0]);
break;
default:
break;
@@ -332,10 +334,12 @@ static void nand_davinci_4bit_enable_hwecc(struct mtd_info *mtd, int mode)
static u32 nand_davinci_4bit_readecc(struct mtd_info *mtd, unsigned int ecc[4])
{
ecc[0] = emif_regs->NAND4BITECC1 & NAND_4BITECC_MASK;
ecc[1] = emif_regs->NAND4BITECC2 & NAND_4BITECC_MASK;
ecc[2] = emif_regs->NAND4BITECC3 & NAND_4BITECC_MASK;
ecc[3] = emif_regs->NAND4BITECC4 & NAND_4BITECC_MASK;
int i;
for (i = 0; i < 4; i++) {
ecc[i] = __raw_readl(&davinci_emif_regs->nand4bitecc[i]) &
NAND_4BITECC_MASK;
}
return 0;
}
@@ -418,32 +422,36 @@ static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
*/
/*Take 2 bits from 8th byte and 8 bits from 9th byte */
writel(((ecc16[4]) >> 6) & 0x3FF, &emif_regs->NAND4BITECCLOAD);
__raw_writel(((ecc16[4]) >> 6) & 0x3FF,
&davinci_emif_regs->nand4biteccload);
/* Take 4 bits from 7th byte and 6 bits from 8th byte */
writel((((ecc16[3]) >> 12) & 0xF) | ((((ecc16[4])) << 4) & 0x3F0),
&emif_regs->NAND4BITECCLOAD);
__raw_writel((((ecc16[3]) >> 12) & 0xF) | ((((ecc16[4])) << 4) & 0x3F0),
&davinci_emif_regs->nand4biteccload);
/* Take 6 bits from 6th byte and 4 bits from 7th byte */
writel((ecc16[3] >> 2) & 0x3FF, &emif_regs->NAND4BITECCLOAD);
__raw_writel((ecc16[3] >> 2) & 0x3FF,
&davinci_emif_regs->nand4biteccload);
/* Take 8 bits from 5th byte and 2 bits from 6th byte */
writel(((ecc16[2]) >> 8) | ((((ecc16[3])) << 8) & 0x300),
&emif_regs->NAND4BITECCLOAD);
__raw_writel(((ecc16[2]) >> 8) | ((((ecc16[3])) << 8) & 0x300),
&davinci_emif_regs->nand4biteccload);
/*Take 2 bits from 3rd byte and 8 bits from 4th byte */
writel((((ecc16[1]) >> 14) & 0x3) | ((((ecc16[2])) << 2) & 0x3FC),
&emif_regs->NAND4BITECCLOAD);
__raw_writel((((ecc16[1]) >> 14) & 0x3) | ((((ecc16[2])) << 2) & 0x3FC),
&davinci_emif_regs->nand4biteccload);
/* Take 4 bits form 2nd bytes and 6 bits from 3rd bytes */
writel(((ecc16[1]) >> 4) & 0x3FF, &emif_regs->NAND4BITECCLOAD);
__raw_writel(((ecc16[1]) >> 4) & 0x3FF,
&davinci_emif_regs->nand4biteccload);
/* Take 6 bits from 1st byte and 4 bits from 2nd byte */
writel((((ecc16[0]) >> 10) & 0x3F) | (((ecc16[1]) << 6) & 0x3C0),
&emif_regs->NAND4BITECCLOAD);
__raw_writel((((ecc16[0]) >> 10) & 0x3F) | (((ecc16[1]) << 6) & 0x3C0),
&davinci_emif_regs->nand4biteccload);
/* Take 10 bits from 0th and 1st bytes */
writel((ecc16[0]) & 0x3FF, &emif_regs->NAND4BITECCLOAD);
__raw_writel((ecc16[0]) & 0x3FF,
&davinci_emif_regs->nand4biteccload);
/*
* Perform a dummy read to the EMIF Revision Code and Status register.
@@ -451,7 +459,7 @@ static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
* writing the ECC values in previous step.
*/
val = emif_regs->NANDFSR;
val = __raw_readl(&davinci_emif_regs->nandfsr);
/*
* Read the syndrome from the NAND Flash 4-Bit ECC 1-4 registers.
@@ -467,13 +475,13 @@ static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
* Clear any previous address calculation by doing a dummy read of an
* error address register.
*/
val = emif_regs->NANDERRADD1;
val = __raw_readl(&davinci_emif_regs->nanderradd1);
/*
* Set the addr_calc_st bit(bit no 13) in the NAND Flash Control
* register to 1.
*/
emif_regs->NANDFCR |= 1 << 13;
__raw_writel(1 << 13, &davinci_emif_regs->nandfcr);
/*
* Wait for the corr_state field (bits 8 to 11)in the
@@ -481,12 +489,12 @@ static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
*/
i = NAND_TIMEOUT;
do {
val = emif_regs->NANDFSR;
val = __raw_readl(&davinci_emif_regs->nandfsr);
val &= 0xc00;
i--;
} while ((i > 0) && val);
iserror = emif_regs->NANDFSR;
iserror = __raw_readl(&davinci_emif_regs->nandfsr);
iserror &= EMIF_NANDFSR_ECC_STATE_MASK;
iserror = iserror >> 8;
@@ -501,32 +509,33 @@ static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
*/
if (iserror == ECC_STATE_NO_ERR) {
val = emif_regs->NANDERRVAL1;
val = __raw_readl(&davinci_emif_regs->nanderrval1);
return 0;
} else if (iserror == ECC_STATE_TOO_MANY_ERRS) {
val = emif_regs->NANDERRVAL1;
val = __raw_readl(&davinci_emif_regs->nanderrval1);
return -1;
}
numerrors = ((emif_regs->NANDFSR >> 16) & 0x3) + 1;
numerrors = ((__raw_readl(&davinci_emif_regs->nandfsr) >> 16)
& 0x3) + 1;
/* Read the error address, error value and correct */
for (i = 0; i < numerrors; i++) {
if (i > 1) {
erroraddress =
((emif_regs->NANDERRADD2 >>
((__raw_readl(&davinci_emif_regs->nanderradd2) >>
(16 * (i & 1))) & 0x3FF);
erroraddress = ((512 + 7) - erroraddress);
errorvalue =
((emif_regs->NANDERRVAL2 >>
((__raw_readl(&davinci_emif_regs->nanderrval2) >>
(16 * (i & 1))) & 0xFF);
} else {
erroraddress =
((emif_regs->NANDERRADD1 >>
((__raw_readl(&davinci_emif_regs->nanderradd1) >>
(16 * (i & 1))) & 0x3FF);
erroraddress = ((512 + 7) - erroraddress);
errorvalue =
((emif_regs->NANDERRVAL1 >>
((__raw_readl(&davinci_emif_regs->nanderrval1) >>
(16 * (i & 1))) & 0xFF);
}
/* xor the corrupt data with error value */
@@ -540,7 +549,7 @@ static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
static int nand_davinci_dev_ready(struct mtd_info *mtd)
{
return emif_regs->NANDFSR & 0x1;
return __raw_readl(&davinci_emif_regs->nandfsr) & 0x1;
}
static void nand_flash_init(void)
@@ -561,21 +570,22 @@ static void nand_flash_init(void)
* *
*------------------------------------------------------------------*/
acfg1 = 0
| (0 << 31 ) /* selectStrobe */
| (0 << 30 ) /* extWait */
| (1 << 26 ) /* writeSetup 10 ns */
| (3 << 20 ) /* writeStrobe 40 ns */
| (1 << 17 ) /* writeHold 10 ns */
| (1 << 13 ) /* readSetup 10 ns */
| (5 << 7 ) /* readStrobe 60 ns */
| (1 << 4 ) /* readHold 10 ns */
| (3 << 2 ) /* turnAround ?? ns */
| (0 << 0 ) /* asyncSize 8-bit bus */
| (0 << 31) /* selectStrobe */
| (0 << 30) /* extWait */
| (1 << 26) /* writeSetup 10 ns */
| (3 << 20) /* writeStrobe 40 ns */
| (1 << 17) /* writeHold 10 ns */
| (1 << 13) /* readSetup 10 ns */
| (5 << 7) /* readStrobe 60 ns */
| (1 << 4) /* readHold 10 ns */
| (3 << 2) /* turnAround ?? ns */
| (0 << 0) /* asyncSize 8-bit bus */
;
emif_regs->AB1CR = acfg1; /* CS2 */
__raw_writel(acfg1, &davinci_emif_regs->ab1cr); /* CS2 */
emif_regs->NANDFCR = 0x00000101; /* NAND flash on CS2 */
/* NAND flash on CS2 */
__raw_writel(0x00000101, &davinci_emif_regs->nandfcr);
#endif
}

10
drivers/net/mpc5xxx_fec.c
View File

@@ -336,13 +336,11 @@ static int mpc5xxx_fec_init(struct eth_device *dev, bd_t * bis)
*/
fec->eth->xmit_fsm = 0x03000000;
#if defined(CONFIG_MPC5200)
/*
* Turn off COMM bus prefetch in the MGT5200 BestComm. It doesn't
* Turn off COMM bus prefetch in the MPC5200 BestComm. It doesn't
* work w/ the current receive task.
*/
sdma->PtdCntrl |= 0x00000001;
#endif
/*
* Set priority of different initiators
@@ -579,9 +577,7 @@ static int mpc5xxx_fec_init_phy(struct eth_device *dev, bd_t * bis)
/********************************************************************/
static void mpc5xxx_fec_halt(struct eth_device *dev)
{
#if defined(CONFIG_MPC5200)
struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA;
#endif
mpc5xxx_fec_priv *fec = (mpc5xxx_fec_priv *)dev->priv;
int counter = 0xffff;
@@ -611,13 +607,11 @@ static void mpc5xxx_fec_halt(struct eth_device *dev)
SDMA_TASK_DISABLE (FEC_XMIT_TASK_NO);
SDMA_TASK_DISABLE (FEC_RECV_TASK_NO);
#if defined(CONFIG_MPC5200)
/*
* Turn on COMM bus prefetch in the MGT5200 BestComm after we're
* Turn on COMM bus prefetch in the MPC5200 BestComm after we're
* done. It doesn't work w/ the current receive task.
*/
sdma->PtdCntrl &= ~0x00000001;
#endif
/*
* Disable the Ethernet Controller

4
drivers/serial/mcfuart.c
View File

@@ -34,7 +34,7 @@
DECLARE_GLOBAL_DATA_PTR;
extern void uart_port_conf(void);
extern void uart_port_conf(int port);
int serial_init(void)
{
@@ -43,7 +43,7 @@ int serial_init(void)
uart = (volatile uart_t *)(CONFIG_SYS_UART_BASE);
uart_port_conf();
uart_port_conf(CONFIG_SYS_UART_PORT);
/* write to SICR: SIM2 = uart mode,dcd does not affect rx */
uart->ucr = UART_UCR_RESET_RX;