unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
1
Fork 0
Code Pull requests 5 Wiki Activity

[MTD] [NAND] Add Blackfin BF52x support in bf5xx_nand driver

Browse source 
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
Michael Hennerich 2007-10-30 17:08:29 +08:00 committed by David Woodhouse
parent 3c441baa03
commit a25b7fee53
2 changed files with 19 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/mtd/nand/Kconfig
View file

@ -93,7 +93,7 @@ config MTD_NAND_AU1550
config MTD_NAND_BF5XX
tristate "Blackfin on-chip NAND Flash Controller driver"
depends on BF54x && MTD_NAND
depends on (BF54x || BF52x) && MTD_NAND
help
This enables the Blackfin on-chip NAND flash controller

20
drivers/mtd/nand/bf5xx_nand.c
View file

@ -74,7 +74,22 @@ static int hardware_ecc = 1;
static int hardware_ecc;
#endif
static unsigned short bfin_nfc_pin_req[] = {P_NAND_CE, P_NAND_RB, 0};
static unsigned short bfin_nfc_pin_req[] =
{P_NAND_CE,
P_NAND_RB,
P_NAND_D0,
P_NAND_D1,
P_NAND_D2,
P_NAND_D3,
P_NAND_D4,
P_NAND_D5,
P_NAND_D6,
P_NAND_D7,
P_NAND_WE,
P_NAND_RE,
P_NAND_CLE,
P_NAND_ALE,
0};
/*
* Data structures for bf5xx nand flash controller driver
@ -507,12 +522,13 @@ static int bf5xx_nand_dma_init(struct bf5xx_nand_info *info)
init_completion(&info->dma_completion);
#ifdef CONFIG_BF54x
/* Setup DMAC1 channel mux for NFC which shared with SDH */
val = bfin_read_DMAC1_PERIMUX();
val &= 0xFFFE;
bfin_write_DMAC1_PERIMUX(val);
SSYNC();
#endif
/* Request NFC DMA channel */
ret = request_dma(CH_NFC, "BF5XX NFC driver");
if (ret < 0) {