I have problem with MMC/SD Linux device driver, I have OMAPL137 EVM board,
2.6.33-rc4 linux ver, form DaVinci-PSP-SDK-03.20.00.11. Linux kernel
doesn't recognize either RS MMC or SD. I commented out part related to LCD
and NAND to make sure that pinmux configuration is ok. Even with default
config I'm unable to access to SD or MMC cord. I compiled MMC/SD driver with
debug and I this is what I get:
This is what I get without SD/MMC card:
0.070000] Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
[ 0.070000] serial8250.0: ttyS0 at MMIO 0x1c42000 (irq = 25) is a 16550A
[ 0.070000] serial8250.0: ttyS1 at MMIO 0x1d0c000 (irq = 53) is a 16550A
[ 0.070000] serial8250.0: ttyS2 at MMIO 0x1d0d000 (irq = 61) is a 16550A
[ 0.080000] brd: module loaded
[ 0.080000] spi_davinci spi_davinci.0: DaVinci SPI driver in EDMA mode
[ 0.080000] Using RX channel = 14 , TX channel = 15 and event queue = 1
[ 0.080000] spi_davinci spi_davinci.0: Controller at 0xfec41000
[ 0.080000] console [netcon0] enabled
[ 0.080000] netconsole: network logging started
[ 0.080000] i2c /dev entries driver
[ 0.080000] sdhci: Secure Digital Host Controller Interface driver
[ 0.080000] sdhci: Copyright(c) Pierre Ossman
[ 0.080000] davinci_mmc davinci_mmc.0: max_phys_segs=16
[ 0.080000] davinci_mmc davinci_mmc.0: max_hw_segs=16
[ 0.080000] davinci_mmc davinci_mmc.0: max_blk_size=4095
[ 0.080000] davinci_mmc davinci_mmc.0: max_req_size=268365825
[ 0.080000] davinci_mmc davinci_mmc.0: max_seg_size=2097120
[ 0.080000] mmc0: clock 0Hz busmode 1 powermode 0 cs 0 Vdd 0 width 0
timing 0
[ 0.080000] davinci_mmc davinci_mmc.0: clock 0Hz busmode 1 powermode 0
Vdd 0000
[ 0.080000] davinci_mmc davinci_mmc.0: Disabling 4 bit mode
[ 0.080000] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
When I plug in SD card:
[ 3.480000] Warning: unable to open an initial console.
[ 282.080000] mmc0: clock 0Hz busmode 1 powermode 1 cs 0 Vdd 21 width 0
timing 0
[ 282.080000] davinci_mmc davinci_mmc.0: clock 0Hz busmode 1 powermode 1
Vdd 0015
[ 282.080000] davinci_mmc davinci_mmc.0: Disabling 4 bit mode
[ 282.100000] mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width
0 timing 0
[ 282.100000] davinci_mmc davinci_mmc.0: clock 400000Hz busmode 1 powermode
2 Vdd 0015
[ 282.100000] davinci_mmc davinci_mmc.0: Disabling 4 bit mode
[ 282.120000] mmc0: clock 400000Hz busmode 1 powermode 2 cs 1 Vdd 21 width
0 timing 0
[ 282.120000] davinci_mmc davinci_mmc.0: clock 400000Hz busmode 1 powermode
2 Vdd 0015
[ 282.120000] davinci_mmc davinci_mmc.0: Disabling 4 bit mode
[ 282.120000] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 282.120000] davinci_mmc davinci_mmc.0: CMD0, arg 0x00000000, (R?
response)
[ 282.120000] davinci_mmc davinci_mmc.0: unknown resp_type 0000
[ 282.120000] mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000
[ 282.120000] mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width
0 timing 0
[ 282.120000] davinci_mmc davinci_mmc.0: clock 400000Hz busmode 1 powermode
2 Vdd 0015
[ 282.120000] davinci_mmc davinci_mmc.0: Disabling 4 bit mode
[ 282.120000] mmc0: starting CMD8 arg 000001aa flags 000002f5
[ 282.120000] davinci_mmc davinci_mmc.0: CMD8, arg 0x000001aa, R1/R5/R6/R7
response
[ 282.120000] mmc0: req done (CMD8): 0: 00000000 00000000 00000000 00000000
[ 282.120000] mmc0: starting CMD5 arg 00000000 flags 000002e1
[ 282.120000] davinci_mmc davinci_mmc.0: CMD5, arg 0x00000000, R3/R4
response
[ 282.120000] mmc0: req done (CMD5): 0: 00000000 00000000 00000000 00000000
[ 282.120000] mmc0: host doesn't support card's voltages
Here is kernel config related to MMC:
CONFIG_MMC=y
CONFIG_MMC_DEBUG=y
# CONFIG_MMC_UNSAFE_RESUME is not set
#
# MMC/SD/SDIO Card Drivers
#
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_BOUNCE=y
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set
#
# MMC/SD/SDIO Host Controller Drivers
#
CONFIG_MMC_SDHCI=y
# CONFIG_MMC_SDHCI_PLTFM is not set
# CONFIG_MMC_AT91 is not set
# CONFIG_MMC_ATMELMCI is not set
CONFIG_MMC_DAVINCI=y
# CONFIG_MMC_SPI is not set
Any ideas what I'm doing wrong ? I use 2 MB SD card and 1GB MMC card and I
have the same result
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