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author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
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committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
tree | 6135abc790ca67dedbe07c39806591e70eda81ce /arch/arm/mach-at91/sam9_smc.c | |
download | linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.gz linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.bz2 linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.zip |
initial_commit
Diffstat (limited to 'arch/arm/mach-at91/sam9_smc.c')
-rw-r--r-- | arch/arm/mach-at91/sam9_smc.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/sam9_smc.c b/arch/arm/mach-at91/sam9_smc.c new file mode 100644 index 00000000..5eab6aa6 --- /dev/null +++ b/arch/arm/mach-at91/sam9_smc.c @@ -0,0 +1,47 @@ +/* + * linux/arch/arm/mach-at91/sam9_smc.c + * + * Copyright (C) 2008 Andrew Victor + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/io.h> + +#include <mach/at91sam9_smc.h> + +#include "sam9_smc.h" + +void __init sam9_smc_configure(int cs, struct sam9_smc_config* config) +{ + /* Setup register */ + at91_sys_write(AT91_SMC_SETUP(cs), + AT91_SMC_NWESETUP_(config->nwe_setup) + | AT91_SMC_NCS_WRSETUP_(config->ncs_write_setup) + | AT91_SMC_NRDSETUP_(config->nrd_setup) + | AT91_SMC_NCS_RDSETUP_(config->ncs_read_setup) + ); + + /* Pulse register */ + at91_sys_write(AT91_SMC_PULSE(cs), + AT91_SMC_NWEPULSE_(config->nwe_pulse) + | AT91_SMC_NCS_WRPULSE_(config->ncs_write_pulse) + | AT91_SMC_NRDPULSE_(config->nrd_pulse) + | AT91_SMC_NCS_RDPULSE_(config->ncs_read_pulse) + ); + + /* Cycle register */ + at91_sys_write(AT91_SMC_CYCLE(cs), + AT91_SMC_NWECYCLE_(config->write_cycle) + | AT91_SMC_NRDCYCLE_(config->read_cycle) + ); + + /* Mode register */ + at91_sys_write(AT91_SMC_MODE(cs), + config->mode + | AT91_SMC_TDF_(config->tdf_cycles) + ); +} |