diff options
| author | Simon Glass <sjg@chromium.org> | 2016-11-13 21:22:02 (GMT) |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2016-11-26 00:59:30 (GMT) |
| commit | 6e019c4f288c269c492d732b6b101bde2ca9cc44 (patch) | |
| tree | f75bdf8e3a6aa0176e506c48394c86fa56a8a6e1 /drivers/spi | |
| parent | 71634f289de5850503738635cc96753c9b2c5d09 (diff) | |
| download | u-boot-6e019c4f288c269c492d732b6b101bde2ca9cc44.tar.xz | |
rockchip: spi: Add support for of-platdata
Allow this driver to be used with of-platdata on rk3288.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/rk_spi.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/spi/rk_spi.c b/drivers/spi/rk_spi.c index 105ee4a..8d64249 100644 --- a/drivers/spi/rk_spi.c +++ b/drivers/spi/rk_spi.c @@ -12,6 +12,7 @@ #include <common.h> #include <clk.h> #include <dm.h> +#include <dt-structs.h> #include <errno.h> #include <spi.h> #include <linux/errno.h> @@ -27,6 +28,9 @@ DECLARE_GLOBAL_DATA_PTR; #define DEBUG_RK_SPI 0 struct rockchip_spi_platdata { +#if CONFIG_IS_ENABLED(OF_PLATDATA) + struct dtd_rockchip_rk3288_spi of_plat; +#endif s32 frequency; /* Default clock frequency, -1 for none */ fdt_addr_t base; uint deactivate_delay_us; /* Delay to wait after deactivate */ @@ -127,9 +131,29 @@ static void spi_cs_deactivate(struct udevice *dev, uint cs) priv->last_transaction_us = timer_get_us(); } +#if CONFIG_IS_ENABLED(OF_PLATDATA) +static int conv_of_platdata(struct udevice *dev) +{ + struct rockchip_spi_platdata *plat = dev->platdata; + struct dtd_rockchip_rk3288_spi *dtplat = &plat->of_plat; + struct rockchip_spi_priv *priv = dev_get_priv(dev); + int ret; + + plat->base = dtplat->reg[0]; + plat->frequency = 20000000; + ret = clk_get_by_index_platdata(dev, 0, dtplat->clocks, &priv->clk); + if (ret < 0) + return ret; + dev->req_seq = 0; + + return 0; +} +#endif + static int rockchip_spi_ofdata_to_platdata(struct udevice *bus) { - struct rockchip_spi_platdata *plat = bus->platdata; +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + struct rockchip_spi_platdata *plat = dev_get_platdata(bus); struct rockchip_spi_priv *priv = dev_get_priv(bus); const void *blob = gd->fdt_blob; int node = bus->of_offset; @@ -153,6 +177,7 @@ static int rockchip_spi_ofdata_to_platdata(struct udevice *bus) debug("%s: base=%x, max-frequency=%d, deactivate_delay=%d\n", __func__, (uint)plat->base, plat->frequency, plat->deactivate_delay_us); +#endif return 0; } @@ -164,6 +189,11 @@ static int rockchip_spi_probe(struct udevice *bus) int ret; debug("%s: probe\n", __func__); +#if CONFIG_IS_ENABLED(OF_PLATDATA) + ret = conv_of_platdata(bus); + if (ret) + return ret; +#endif priv->regs = (struct rockchip_spi *)plat->base; priv->last_transaction_us = timer_get_us(); @@ -369,7 +399,11 @@ static const struct udevice_id rockchip_spi_ids[] = { }; U_BOOT_DRIVER(rockchip_spi) = { +#if CONFIG_IS_ENABLED(OF_PLATDATA) + .name = "rockchip_rk3288_spi", +#else .name = "rockchip_spi", +#endif .id = UCLASS_SPI, .of_match = rockchip_spi_ids, .ops = &rockchip_spi_ops, |