diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2019-09-18 14:50:37 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2022-05-07 22:55:49 +0200 |
| commit | 6a946f1bd5cc966c9dd377b14efa4cec388101ce (patch) | |
| tree | 9ebe3dad341cbf6cfe68f6cb65e8b9d4fefd1231 /arch/arm/mach-pxa | |
| parent | 85c611991255603fef24e374eed3b35175be490b (diff) | |
ARM: pxa: pcmcia: move smemc configuration back to arch
Rather than poking at the smemc registers directly from the
pcmcia/pxa2xx_base driver, move those bits into machine file
to have a cleaner interface.
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Link: https://lore.kernel.org/lkml/87d0egjzxk.fsf@belgarion.home/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-pxa')
| -rw-r--r-- | arch/arm/mach-pxa/generic.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index f9083c4f0aea..fe1d55d328e5 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -70,6 +70,35 @@ unsigned int get_clk_frequency_khz(int info) } EXPORT_SYMBOL(get_clk_frequency_khz); +void pxa_smemc_set_pcmcia_timing(int sock, u32 mcmem, u32 mcatt, u32 mcio) +{ + __raw_writel(mcmem, MCMEM(sock)); + __raw_writel(mcatt, MCATT(sock)); + __raw_writel(mcio, MCIO(sock)); +} +EXPORT_SYMBOL_GPL(pxa_smemc_set_pcmcia_timing); + +void pxa_smemc_set_pcmcia_socket(int nr) +{ + switch (nr) { + case 0: + __raw_writel(0, MECR); + break; + case 1: + /* + * We have at least one socket, so set MECR:CIT + * (Card Is There) + */ + __raw_writel(MECR_CIT, MECR); + break; + case 2: + /* Set CIT and MECR:NOS (Number Of Sockets) */ + __raw_writel(MECR_CIT | MECR_NOS, MECR); + break; + } +} +EXPORT_SYMBOL_GPL(pxa_smemc_set_pcmcia_socket); + /* * Intel PXA2xx internal register mapping. * |