From 39f45d7bc0df52db8a7dd099ac02fef89514b7fc Mon Sep 17 00:00:00 2001 From: Michel Pollet <buserror@gmail.com> Date: Wed, 20 May 2009 11:10:31 +0100 Subject: [PATCH] [ARM] MINI2440: Document the mini2440= kernel parameter Also explains why the touchscreen support is not present, and were to find a working one... Signed-off-by: Michel Pollet <buserror@gmail.com> [ben-linux@fluff.org: Fix header description] Signed-off-by: Ben Dooks <ben-linux@fluff.org> --- Documentation/kernel-parameters.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 5f66ba295c5d3..4b765b7ded9fb 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1351,6 +1351,27 @@ and is between 256 and 4096 characters. It is defined in the file min_addr=nn[KMG] [KNL,BOOT,ia64] All physical memory below this physical address is ignored. + mini2440= [ARM,HW,KNL] + Format:[0..2][b][c][t] + Default: "0tb" + MINI2440 configuration specification: + 0 - The attached screen is the 3.5" TFT + 1 - The attached screen is the 7" TFT + 2 - The VGA Shield is attached (1024x768) + Leaving out the screen size parameter will not load + the TFT driver, and the framebuffer will be left + unconfigured. + b - Enable backlight. The TFT backlight pin will be + linked to the kernel VESA blanking code and a GPIO + LED. This parameter is not necessary when using the + VGA shield. + c - Enable the s3c camera interface. + t - Reserved for enabling touchscreen support. The + touchscreen support is not enabled in the mainstream + kernel as of 2.6.30, a preliminary port can be found + in the "bleeding edge" mini2440 support kernel at + http://repo.or.cz/w/linux-2.6/mini2440.git + mminit_loglevel= [KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this parameter allows control of the logging verbosity for -- GitLab