#22072: Issue with MMC MOD on brcm47xx legacy branch.
---------------------------------+---------------------------------------
 Reporter:  gooolash@…           |      Owner:  developers
     Type:  defect               |     Status:  new
 Priority:  normal               |  Milestone:  Designated Driver (Trunk)
Component:  base system          |    Version:  Chaos Calmer 15.05
 Keywords:  MMC MOD on brcm47xx  |
---------------------------------+---------------------------------------
 I own WRT54GL wit 16MB Flash & 64MB RAM.
 While running newer OPENWRT versions (BB & CC), MMC MOD does not work.

 Here's how dmesg log  used to look before legacy branch (AA):

     [35947.072000] gpio-mmc: Failed to request mmc_spi module.
     [35947.096000] mmc_spi spi32766.0: ASSUMING 3.2-3.4 V slot power
     [35947.104000] mmc_spi spi32766.0: SD/MMC host mmc0, no DMA, no WP, no
 poweroff
     [35947.112000] gpio-mmc: MMC-Card "default" attached to GPIO pins
 di=2, do=4, clk=3, cs=7
     [35947.156000] mmc_spi spi32766.0: setup: unsupported mode bits 4
     [35947.164000] mmc_spi spi32766.0: can't change chip-select polarity
     [35947.508000] mmc0: host does not support reading read-only switch.
 assuming write-enable.
     [35947.516000] mmc0: new SD card on SPI
     [35947.540000] mmcblk0: mmc0:0000 SMI   1.87 GiB
     [35947.904000]  mmcblk0: p1

 Here's what it looks now (both BB & CC):

     [127.730000] gpio-mmc: Failed to request mmc_spi module.
     [127.740000] spi-gpio: probe of spi-gpio.0 failed with error -16
     [127.740000] gpio-mmc: MMC-Card "default" attached to GPIO pins di=2,
 do=4, clk

 There is one file missing in the BB & CC distributions of brcm47xx legacy
 branch, /etc/modules.d/30-b43, which is vital to perform MMC Mod on
 brcm47xx.

 There are two similar ones:
 /etc/modules.d/b43
 /etc/modules.d/b43legacy
 However modifying them does not help.
 Manually adding the 30-b43 file does not help either.

--
Ticket URL: <https://dev.openwrt.org/ticket/22072>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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