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Commit ee0263cc authored by Graf Yang's avatar Graf Yang Committed by Mike Frysinger
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Blackfin: BF518F-EZBRD: handle required portmuxing of async pins 



The two high address lines on the BF51x are not dedicated which means we
need to handle them like any other peripheral pin if we want to access the
upper 2MB of parallel flash.

Signed-off-by: default avatarGraf Yang <graf.yang@analog.com>
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent 7f3aee3c

arch/blackfin/mach-bf518/boards/ezbrd.c

+9 −0
Original line number Diff line number Diff line
@@ -82,7 +82,11 @@ static struct physmap_flash_data ezbrd_flash_data = { 


static struct resource ezbrd_flash_resource = {

	.start = 0x20000000,

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)

	.end   = 0x202fffff,

#else

	.end   = 0x203fffff,

#endif

	.flags = IORESOURCE_MEM,

};
@@ -678,6 +682,11 @@ static int __init ezbrd_init(void) 
				ARRAY_SIZE(bfin_i2c_board_info));

	platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));

	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));

	/* setup BF518-EZBRD GPIO pin PG11 to AMS2, PG15 to AMS3. */

	peripheral_request(P_AMS2, "ParaFlash");

#if !defined(CONFIG_SPI_BFIN) && !defined(CONFIG_SPI_BFIN_MODULE)

	peripheral_request(P_AMS3, "ParaFlash");

#endif

	return 0;

}

arch/blackfin/mach-bf518/include/mach/portmux.h

+5 −1
Original line number Diff line number Diff line
@@ -185,6 +185,10 @@ 
#define P_PTP_PPS		(P_DEFINED | P_IDENT(GPIO_PG12) | P_FUNCT(2))

#define P_PTP_CLKOUT		(P_DEFINED | P_IDENT(GPIO_PG13) | P_FUNCT(2))



/* AMS */

#define P_AMS2			(P_DEFINED | P_IDENT(GPIO_PG11) | P_FUNCT(1))

#define P_AMS3			(P_DEFINED | P_IDENT(GPIO_PG15) | P_FUNCT(2))



#define P_HWAIT			(P_DEFINED | P_IDENT(GPIO_PG000000000) | P_FUNCT(1))



#endif				/* _MACH_PORTMUX_H_ */