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| author | Jon Hunter <jon-hunter@ti.com> | 2013-02-21 23:46:22 +0400 |
|---|---|---|
| committer | Jon Hunter <jon-hunter@ti.com> | 2013-04-01 23:53:41 +0400 |
| commit | c3be5b457ae1bb6dc93ef25bfa03e595969acbfc (patch) | |
| tree | 8c06dd50cfd5c181be4b7cfe561d7a52cdf03fa0 /arch/arm/mach-omap2/gpmc-onenand.c | |
| parent | 9f8331562aa1fd72e80dd6037c958cb3faf4cc38 (diff) | |
| download | linux-c3be5b457ae1bb6dc93ef25bfa03e595969acbfc.tar.xz | |
ARM: OMAP2+: Add structure for storing GPMC settings
The GPMC has various different configuration options such as bus-width,
synchronous or asychronous mode selection, burst mode options etc.
Currently, there is no central structure for storing all these options
when configuring the GPMC for a given device. Some of the options are
stored in the GPMC timing structure and some are directly programmed
into the GPMC configuration register. Add a new structure to store
these options and convert code to use this structure. Adding this
structure will allow us to create a common function for configuring
these options.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Diffstat (limited to 'arch/arm/mach-omap2/gpmc-onenand.c')
| -rw-r--r-- | arch/arm/mach-omap2/gpmc-onenand.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c index db52c4b28f8b..e175ceb0dc05 100644 --- a/arch/arm/mach-omap2/gpmc-onenand.c +++ b/arch/arm/mach-omap2/gpmc-onenand.c @@ -47,6 +47,15 @@ static struct platform_device gpmc_onenand_device = { .resource = &gpmc_onenand_resource, }; +static struct gpmc_settings onenand_async = { + .mux_add_data = GPMC_MUX_AD, +}; + +static struct gpmc_settings onenand_sync = { + .burst_read = true, + .mux_add_data = GPMC_MUX_AD, +}; + static void omap2_onenand_calc_async_timings(struct gpmc_timings *t) { struct gpmc_device_timings dev_t; @@ -63,7 +72,6 @@ static void omap2_onenand_calc_async_timings(struct gpmc_timings *t) memset(&dev_t, 0, sizeof(dev_t)); - dev_t.mux = true; dev_t.t_avdp_r = max_t(int, t_avdp, t_cer) * 1000; dev_t.t_avdp_w = dev_t.t_avdp_r; dev_t.t_aavdh = t_aavdh * 1000; @@ -75,7 +83,7 @@ static void omap2_onenand_calc_async_timings(struct gpmc_timings *t) dev_t.t_wpl = t_wpl * 1000; dev_t.t_wph = t_wph * 1000; - gpmc_calc_timings(t, &dev_t); + gpmc_calc_timings(t, &onenand_async, &dev_t); } static int gpmc_set_async_mode(int cs, struct gpmc_timings *t) @@ -235,10 +243,8 @@ static void omap2_onenand_calc_sync_timings(struct gpmc_timings *t, /* Set synchronous read timings */ memset(&dev_t, 0, sizeof(dev_t)); - dev_t.mux = true; - dev_t.sync_read = true; if (onenand_flags & ONENAND_FLAG_SYNCWRITE) { - dev_t.sync_write = true; + onenand_sync.sync_write = true; } else { dev_t.t_avdp_w = max(t_avdp, t_cer) * 1000; dev_t.t_wpl = t_wpl * 1000; @@ -261,7 +267,7 @@ static void omap2_onenand_calc_sync_timings(struct gpmc_timings *t, dev_t.cyc_aavdh_oe = 1; dev_t.t_rdyo = t_rdyo * 1000 + min_gpmc_clk_period; - gpmc_calc_timings(t, &dev_t); + gpmc_calc_timings(t, &onenand_sync, &dev_t); } static int gpmc_set_sync_mode(int cs, struct gpmc_timings *t) |