The following series adds support for an optional wl12xx based expansion
card for the AM18x EVM:
http://processors.wiki.ti.com/index.php/AM18x_%2B_WL1271
The first couple of patches address issues which had to be fixed for this
series to work. However, these should be fixed regardless of the
Commit 7416401 (arm: davinci: Fix fallout from generic irq chip
conversion) introduced a bug, causing low level interrupt handlers to
get a bogus irq number as an argument. The gpio irq handler falsely
assumes that the handler data is the irq base number and that is no
longer true.
Fix this by
Davinci platforms may define a default queue for each channel
controller. If one is not defined, the default queue is set to EVENTQ_1.
However, there's no way to distinguish between an unset default queue to
one that is set to EVENTQ_0, as EVENTQ_0 = 0.
Explicitly specify the default queue for
Some devices connected to the MMC bus are power controlled by external
means. For instance, an SDIO device may be powered down/up by an
external gpio line.
In order to avoid toggling power from within the MMC host driver, add a
set_power callback function, which will be called by set_ios upon
AM18x has two MMC slots. Add the required pinmux configuration for the
second slot.
Signed-off-by: Ido Yariv i...@wizery.com
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arch/arm/mach-davinci/da850.c|7 +++
arch/arm/mach-davinci/include/mach/mux.h |8
2 files changed, 15 insertions(+), 0 deletions(-)
The wl1271 daughter board makes use of a few GPIOs:
GPIO6_9 is used for powering down/up the WLAN functionality.
GPIO6_10 is used as an input IRQ line from the WLAN chip.
Add the required pinmux configuration for these GPIOs.
Signed-off-by: Ido Yariv i...@wizery.com
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The wl1271 daughter card for AM18x EVMs is a combo wireless connectivity
add-on card, based on the LS Research TiWi module with Texas
Instruments' wl1271 solution.
It is a 4-wire, 1.8V, embedded SDIO WLAN device with an external IRQ
line and is power-controlled by a GPIO-based fixed regulator.
Documentation about the background and the design of mmc non-blocking.
Host driver guidelines to minimize request preparation overhead.
Signed-off-by: Per Forlin per.for...@linaro.org
Acked-by: Randy Dunlap rdun...@xenotime.net
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ChangeLog:
v2: - Minor updates after proofreading comments from
Currently, the retuning timer for retuning mode 1 will be deleted in
function sdhci_tasklet_finish after a mmc request done, which will make
retuning timing never trigger again. This patch fixed this problem.
Signed-off-by: Aaron Lu aaron...@amd.com
---
drivers/mmc/host/sdhci.c |3 ---
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