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mb/pcengines/apu2/gpio_ftns.h: add comment about GPIO numbers 

The mapping of the package GPIO numbers to the GPIO numbers on the GPIO
controller isn't a 1:1 one, so add a comment about that to avoid
confusion. Also change the comment style to match the style guide.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ie30bf5483ea2e2516d7e3fdd21ea9338362e526e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56808
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
This commit is contained in:
Felix Held 2021-08-04 19:28:45 +02:00
parent 5d933c483f
commit 99c4a29cdc
1 changed files with 6 additions and 5 deletions
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11
src/mainboard/pcengines/apu2/gpio_ftns.h
View File

@ -5,11 +5,12 @@
int get_spd_offset(void);
//
// Based on PC Engines APU2C and APU3A schematics
// http://www.pcengines.ch/schema/apu2c.pdf
// http://www.pcengines.ch/schema/apu3a.pdf
//
/*
* Based on PC Engines APU2C and APU3A schematics
* http://www.pcengines.ch/schema/apu2c.pdf
* http://www.pcengines.ch/schema/apu3a.pdf
* Beware that the GPIO pin numbers on the package don't match the internal GPIO numbers
*/
#define GPIO_22 0x09 // MODESW (APU5)
#define GPIO_32 0x59 // MODESW (SIMSWAP2 on APU5)
#define GPIO_33 0x5A // SIMSWAP (SIMSWAP3 on APU5)