diff options
Diffstat (limited to 'kernel/drivers/pcmcia/at91_cf.c')
| -rw-r--r-- | kernel/drivers/pcmcia/at91_cf.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/kernel/drivers/pcmcia/at91_cf.c b/kernel/drivers/pcmcia/at91_cf.c index e7775a41a..87147bcd1 100644 --- a/kernel/drivers/pcmcia/at91_cf.c +++ b/kernel/drivers/pcmcia/at91_cf.c @@ -20,16 +20,15 @@ #include <linux/platform_data/atmel.h> #include <linux/io.h> #include <linux/sizes.h> +#include <linux/mfd/syscon.h> +#include <linux/mfd/syscon/atmel-mc.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_gpio.h> +#include <linux/regmap.h> #include <pcmcia/ss.h> -#include <mach/at91rm9200_mc.h> -#include <mach/at91_ramc.h> - - /* * A0..A10 work in each range; A23 indicates I/O space; A25 is CFRNW; * some other bit in {A24,A22..A11} is nREG to flag memory access @@ -40,6 +39,8 @@ #define CF_IO_PHYS (1 << 23) #define CF_MEM_PHYS (0x017ff800) +struct regmap *mc; + /*--------------------------------------------------------------------------*/ struct at91_cf_socket { @@ -155,10 +156,7 @@ static int at91_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io) /* * Use 16 bit accesses unless/until we need 8-bit i/o space. - */ - csr = at91_ramc_read(0, AT91_SMC_CSR(cf->board->chipselect)) & ~AT91_SMC_DBW; - - /* + * * NOTE: this CF controller ignores IOIS16, so we can't really do * MAP_AUTOSZ. The 16bit mode allows single byte access on either * D0-D7 (even addr) or D8-D15 (odd), so it's close enough for many @@ -169,13 +167,14 @@ static int at91_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io) * CF 3.0 spec table 35 also giving the D8-D15 option. */ if (!(io->flags & (MAP_16BIT | MAP_AUTOSZ))) { - csr |= AT91_SMC_DBW_8; + csr = AT91_MC_SMC_DBW_8; dev_dbg(&cf->pdev->dev, "8bit i/o bus\n"); } else { - csr |= AT91_SMC_DBW_16; + csr = AT91_MC_SMC_DBW_16; dev_dbg(&cf->pdev->dev, "16bit i/o bus\n"); } - at91_ramc_write(0, AT91_SMC_CSR(cf->board->chipselect), csr); + regmap_update_bits(mc, AT91_MC_SMC_CSR(cf->board->chipselect), + AT91_MC_SMC_DBW, csr); io->start = cf->socket.io_offset; io->stop = io->start + SZ_2K - 1; @@ -236,6 +235,10 @@ static int at91_cf_dt_init(struct platform_device *pdev) pdev->dev.platform_data = board; + mc = syscon_regmap_lookup_by_compatible("atmel,at91rm9200-sdramc"); + if (IS_ERR(mc)) + return PTR_ERR(mc); + return 0; } #else |