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Commit b3b3c176 authored by Bruno Randolf's avatar Bruno Randolf Committed by Ralf Baechle
Browse files

MIPS: MTX-1: cleanup and comments 



Add some comments about mtx1_pci_idsel() and remove a dead block of old code.

Signed-off-by: default avatarBruno Randolf <br1@einfach.org>
To: linux-mips@linux-mips.org
To: manuel.lauss@googlemail.com
Cc: florian@openwrt.org
Patchwork: https://patchwork.linux-mips.org/patch/1449/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent f5c1ca77

arch/mips/alchemy/mtx-1/board_setup.c

+4 −8
Original line number Diff line number Diff line
@@ -108,14 +108,10 @@ void __init board_setup(void) 
int

mtx1_pci_idsel(unsigned int devsel, int assert)

{

#define MTX_IDSEL_ONLY_0_AND_3 0

#if MTX_IDSEL_ONLY_0_AND_3

	if (devsel != 0 && devsel != 3) {

		printk(KERN_ERR "*** not 0 or 3\n");

		return 0;

	}

#endif



	/* This function is only necessary to support a proprietary Cardbus

	 * adapter on the mtx-1 "singleboard" variant. It triggers a custom

	 * logic chip connected to EXT_IO3 (GPIO1) to suppress IDSEL signals.

	 */

	if (assert && devsel != 0)

		/* Suppress signal to Cardbus */

		alchemy_gpio_set_value(1, 0);	/* set EXT_IO3 OFF */