Hello,
I'm trying to convert from legacy at91_spi to newer atmel_spi driver in my
board.
Linux kernel 2.6.22rc2 + corresponding patch from maxim.org.za/at91_26.html
board specific spi info :
static struct spi_board_info chub_spi_devices[] = {
{ /* DataFlash chip */
.modalias = "mtd_dataflash",
.chip_select = 0,
.max_speed_hz = 15 * 1000 * 1000,
},
};
snip from .config:
CONFIG_MTD_DATAFLASH=y
#
# SPI support
#
CONFIG_SPI=y
CONFIG_SPI_DEBUG=y
CONFIG_SPI_MASTER=y
#
# SPI Master Controller Drivers
#
CONFIG_SPI_ATMEL=y
# CONFIG_SPI_BITBANG is not set
CONFIG_SPI_AT91_MANUAL_CS=y
#
# SPI Protocol Masters
#
# CONFIG_SPI_AT25 is not set
# CONFIG_SPI_SPIDEV is not set
While boot, the board stumbles on SPI initialization:
Uncompressing
Linux.......................................................................
done, booting the kernel.
Linux version 2.6.22-rc1 ([EMAIL PROTECTED]) (gcc version 3.4.2) #12 Wed May 23
14:05:30 EEST 2007
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
Machine: Promwad Chub
---snip----
eth0: Link now 100-FullDuplex
eth0: AT91 ethernet at 0xfefbc000 int=24 100-FullDuplex (00:12:34:56:78:9a)
eth0: National Semiconductor DP83848 PHY
NAND device: Manufacturer ID: 0xec, Chip ID: 0x76 (Samsung NAND 64MiB 3,3V
8-bit)
Scanning device for bad blocks
Creating 1 MTD partitions on "NAND 64MiB 3,3V 8-bit":
0x00000000-0x04000000 : "NAND Partition 1"
atmel_spi atmel_spi.0: Atmel SPI Controller at 0xfffe0000 (irq 13)
Not booting further. Timer led is still blinking. Is atmel_spi usable?
I have working setup on 2.6.20 + corresponding patch from
maxim.org.za/at91_26.html + legacy "at91_dataflash" + legacy "at91_spi"
Best regards, Ivan
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