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Commit 49e01e3f authored by Russell King's avatar Russell King
Browse files

ARM: sa11x0: assabet: ensure that GPIO27 is driven 



GPIO27 is just connected to a CPLD input without any pull-ups or pull-
downs.  If GPIO27 is left as an input, it will float around mid-supply,
which for CMOS inputs is the worst place for a pin to be.  Ensure that
this pin is driven.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 4f592e6d

arch/arm/mach-sa1100/assabet.c

+8 −0
Original line number Diff line number Diff line
@@ -214,6 +214,14 @@ static void __init assabet_init(void) 
	GPCR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;

	GPDR |= GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;



	/*

	 * Also set GPIO27 as an output; this is used to clock UART3

	 * via the FPGA and as otherwise has no pullups or pulldowns,

	 * so stop it floating.

	 */

	GPCR = GPIO_GPIO27;

	GPDR |= GPIO_GPIO27;



	/*

	 * Set up registers for sleep mode.

	 */