diff options
| author |   Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2011-11-27 19:29:57 +0800 |
|---|---|---|
| committer |   Nicolas Ferre <nicolas.ferre@atmel.com> | 2012-02-13 18:31:36 +0100 |
| commit | 59594e13e4d83239332746395fe03ba49b8efa12 (patch) | |
| tree | a60e58e60039d413b5ac73ffa64d699913f17d33 /arch/arm/mach-at91/include | |
| parent | ARM: at91:rtc/rtc-at91sam9: ioremap register bank (diff) | |
| download | linux-dev-59594e13e4d83239332746395fe03ba49b8efa12.tar.xz linux-dev-59594e13e4d83239332746395fe03ba49b8efa12.zip | |
ARM: at91: add accessor to manage SMC
SMC, Static Memory Controller will need more accessors to fine
configure its parameters.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91/include')
| -rw-r--r-- | arch/arm/mach-at91/include/mach/at91sam9_smc.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/at91sam9_smc.h b/arch/arm/mach-at91/include/mach/at91sam9_smc.h index eb18a70fa647..175e1fdd9fe8 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9_smc.h +++ b/arch/arm/mach-at91/include/mach/at91sam9_smc.h @@ -18,6 +18,35 @@ #include <mach/cpu.h> +#ifndef __ASSEMBLY__ +struct sam9_smc_config { + /* Setup register */ + u8 ncs_read_setup; + u8 nrd_setup; + u8 ncs_write_setup; + u8 nwe_setup; + + /* Pulse register */ + u8 ncs_read_pulse; + u8 nrd_pulse; + u8 ncs_write_pulse; + u8 nwe_pulse; + + /* Cycle register */ + u16 read_cycle; + u16 write_cycle; + + /* Mode register */ + u32 mode; + u8 tdf_cycles:4; +}; + +extern void sam9_smc_configure(int id, int cs, struct sam9_smc_config *config); +extern void sam9_smc_read(int id, int cs, struct sam9_smc_config *config); +extern void sam9_smc_read_mode(int id, int cs, struct sam9_smc_config *config); +extern void sam9_smc_write_mode(int id, int cs, struct sam9_smc_config *config); +#endif + #define AT91_SMC_SETUP 0x00 /* Setup Register for CS n */ #define AT91_SMC_NWESETUP (0x3f << 0) /* NWE Setup Length */ #define AT91_SMC_NWESETUP_(x) ((x) << 0) |