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mach-u300: drop SEMI config option
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When we have only dual-RAM configurations, the SEMI (shared
memory interface) must always be enabled.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Linus Walleij committed Aug 17, 2011
1 parent 7328514 commit c43ed56
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Showing 2 changed files with 1 addition and 16 deletions.
8 changes: 0 additions & 8 deletions arch/arm/mach-u300/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -54,14 +54,6 @@ config U300_DEBUG
help
Debug support for U300 in sysfs, procfs etc.

config MACH_U300_SEMI_IS_SHARED
bool "The SEMI is used by both the access and application side"
depends on MACH_U300
help
This makes it possible to use the SEMI (Shared External
Memory Interface) from both from access and application
side.

config MACH_U300_SPIDUMMY
bool "SSP/SPI dummy chip"
select SPI
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9 changes: 1 addition & 8 deletions arch/arm/mach-u300/core.c
Original file line number Diff line number Diff line change
Expand Up @@ -1837,17 +1837,10 @@ void __init u300_init_devices(void)
/* Register subdevices on the SPI bus */
u300_spi_register_board_devices();

#ifndef CONFIG_MACH_U300_SEMI_IS_SHARED
/*
* Enable SEMI self refresh. Self-refresh of the SDRAM is entered when
* both subsystems are requesting this mode.
* If we not share the Acc SDRAM, this is never the case. Therefore
* enable it here from the App side.
*/
/* Enable SEMI self refresh */
val = readw(U300_SYSCON_VBASE + U300_SYSCON_SMCR) |
U300_SYSCON_SMCR_SEMI_SREFREQ_ENABLE;
writew(val, U300_SYSCON_VBASE + U300_SYSCON_SMCR);
#endif /* CONFIG_MACH_U300_SEMI_IS_SHARED */
}

static int core_module_init(void)
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