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tqm5200: Correct comment and code in post_hotkeys_pressed.

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This fixes the code and the comment according to the original intent of
doing an intensive memory test when PSC6_3 is pulled low on the STK52xx.
Notably PORT_CONFIG will be overridden with this correct code now,
so beware.

The original code only worked by coincidence depending on the PORT_CONFIG
setting from the header file.  The new code was tested to ensure that the
(undocumented) memory test still works on the STK52x.

Signed-off-by: Detlev Zundel <dzu@denx.de>
CC: Martin Krause <Martin.Krause@tqs.de>

Minor white-space cleanup.
Signed-off-by: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Detlev Zundel 2009-10-07 16:38:05 +02:00 • committed by Wolfgang Denk
parent da01f53404
commit 95c44ec485
2 changed files with 10 additions and 10 deletions
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6
board/tqc/tqm5200/tqm5200.c
View file

@ -358,11 +358,9 @@ int post_hotkeys_pressed(void)
gpio = (struct mpc5xxx_gpio*) MPC5XXX_GPIO;
/*
* Configure PSC6_1 and PSC6_3 as GPIO. PSC6 then couldn't be used in
* CODEC or UART mode. Consumer IrDA should still be possible.
* Configure PSC6_0 through PSC6_3 as GPIO.
*/
gpio->port_config &= ~(0x07000000);
gpio->port_config |= 0x03000000;
gpio->port_config &= ~(0x00700000);
/* Enable GPIO for GPIO_IRDA_1 (IR_USB_CLK pin) = PSC6_3 */
gpio->simple_gpioe |= 0x20000000;

2
include/configs/TQM5200.h
View file

@ -540,6 +540,8 @@
* 101 -> use PSC6 as UART. Pins PSC6_0 to PSC6_3 are used.
* Extended POST test is not available.
* Use for STK52xx, FO300 and CAM5200 boards.
* WARNING: When the extended POST is enabled, these bits will
* be overridden by this code as GPIOs!
* use PCI_DIS: Bit 16 (mask 0x00008000):
* 1 -> disable PCI controller (on CAM5200 board).
* use USB: Bits 18-19 (mask 0x00003000):