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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>
This commit is contained in:
Linus Walleij
2011-08-09 21:30:01 +02:00
parent 7328514654
commit c43ed5600b
2 changed files with 1 additions and 16 deletions
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8
arch/arm/mach-u300/Kconfig
View File

@ -54,14 +54,6 @@ config U300_DEBUG
help help
Debug support for U300 in sysfs, procfs etc. 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 config MACH_U300_SPIDUMMY
bool "SSP/SPI dummy chip" bool "SSP/SPI dummy chip"
select SPI select SPI

9
arch/arm/mach-u300/core.c
View File

@ -1837,17 +1837,10 @@ void __init u300_init_devices(void)
/* Register subdevices on the SPI bus */ /* Register subdevices on the SPI bus */
u300_spi_register_board_devices(); u300_spi_register_board_devices();
#ifndef CONFIG_MACH_U300_SEMI_IS_SHARED /* Enable SEMI self refresh */
/*
* 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.
*/
val = readw(U300_SYSCON_VBASE + U300_SYSCON_SMCR) | val = readw(U300_SYSCON_VBASE + U300_SYSCON_SMCR) |
U300_SYSCON_SMCR_SEMI_SREFREQ_ENABLE; U300_SYSCON_SMCR_SEMI_SREFREQ_ENABLE;
writew(val, U300_SYSCON_VBASE + U300_SYSCON_SMCR); writew(val, U300_SYSCON_VBASE + U300_SYSCON_SMCR);
#endif /* CONFIG_MACH_U300_SEMI_IS_SHARED */
} }
static int core_module_init(void) static int core_module_init(void)