diff options
| author | Furquan Shaikh <furquan@chromium.org> | 2017-05-18 11:10:20 -0700 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2017-05-24 04:39:07 +0200 |
| commit | e173ee8f01dae8d645235347f80b6c0ec4aacf0d (patch) | |
| tree | d0f68f4855aec43192b57da3579112dd6115ac05 /src | |
| parent | 23d5d99098a61b90cb4bea07a357531f74e7be38 (diff) | |
soc/imgtec/pistachio: Move spi driver to use spi_bus_map
This is in preparation to get rid of the strong spi_setup_slave
implemented by different platforms.
BUG=b:38430839
Change-Id: Ie4ec74fccaf25900537ccd5c146bb0a333a2754c
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19772
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/imgtec/pistachio/spi.c | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/src/soc/imgtec/pistachio/spi.c b/src/soc/imgtec/pistachio/spi.c index 30e14fab10..bfd982cf62 100644 --- a/src/soc/imgtec/pistachio/spi.c +++ b/src/soc/imgtec/pistachio/spi.c @@ -533,22 +533,13 @@ static int spi_ctrlr_xfer(const struct spi_slave *slave, const void *dout, return SPIM_OK; } -static const struct spi_ctrlr spi_ctrlr = { - .claim_bus = spi_ctrlr_claim_bus, - .release_bus = spi_ctrlr_release_bus, - .xfer = spi_ctrlr_xfer, - .xfer_vector = spi_xfer_two_vectors, - .max_xfer_size = IMGTEC_SPI_MAX_TRANSFER_SIZE, -}; - -/* Set up communications parameters for a SPI slave. */ -int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) +static int spi_ctrlr_setup(const struct spi_slave *slave) { struct img_spi_slave *img_slave = NULL; struct spim_device_parameters *device_parameters; u32 base; - switch (bus) { + switch (slave->bus) { case 0: base = IMG_SPIM0_BASE_ADDRESS; break; @@ -560,16 +551,12 @@ int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) __func__); return -1; } - if (cs > SPIM_DEVICE4) { + if (slave->cs > SPIM_DEVICE4) { printk(BIOS_ERR, "%s: Error: unsupported chipselect.\n", __func__); return -1; } - slave->bus = bus; - slave->cs = cs; - slave->ctrlr = &spi_ctrlr; - img_slave = get_img_slave(slave); device_parameters = &(img_slave->device_parameters); @@ -586,3 +573,22 @@ int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) return 0; } + +static const struct spi_ctrlr spi_ctrlr = { + .setup = spi_ctrlr_setup, + .claim_bus = spi_ctrlr_claim_bus, + .release_bus = spi_ctrlr_release_bus, + .xfer = spi_ctrlr_xfer, + .xfer_vector = spi_xfer_two_vectors, + .max_xfer_size = IMGTEC_SPI_MAX_TRANSFER_SIZE, +}; + +const struct spi_ctrlr_buses spi_ctrlr_bus_map[] = { + { + .ctrlr = &spi_ctrlr, + .bus_start = 0, + .bus_end = 1, + }, +}; + +const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map); |