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dm: tegra: spi: Convert to livetree

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Update the tegra114 spi driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
Tested-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Simon Glass 2017-07-25 08:30:05 -06:00
parent 5ae28c0a60
commit 28a3e5a864
1 changed files with 5 additions and 8 deletions
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13
drivers/spi/tegra114_spi.c
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@ -12,7 +12,6 @@
#include <asm/arch/clock.h>
#include <asm/arch-tegra/clk_rst.h>
#include <spi.h>
#include <fdtdec.h>
#include "tegra_spi.h"
DECLARE_GLOBAL_DATA_PTR;
@ -100,10 +99,8 @@ struct tegra114_spi_priv {
static int tegra114_spi_ofdata_to_platdata(struct udevice *bus)
{
struct tegra_spi_platdata *plat = bus->platdata;
const void *blob = gd->fdt_blob;
int node = dev_of_offset(bus);
plat->base = devfdt_get_addr(bus);
plat->base = dev_read_addr(bus);
plat->periph_id = clock_decode_periph_id(bus);
if (plat->periph_id == PERIPH_ID_NONE) {
@ -113,10 +110,10 @@ static int tegra114_spi_ofdata_to_platdata(struct udevice *bus)
}
/* Use 500KHz as a suitable default */
plat->frequency = fdtdec_get_int(blob, node, "spi-max-frequency",
500000);
plat->deactivate_delay_us = fdtdec_get_int(blob, node,
"spi-deactivate-delay", 0);
plat->frequency = dev_read_u32_default(bus, "spi-max-frequency",
500000);
plat->deactivate_delay_us = dev_read_u32_default(bus,
"spi-deactivate-delay", 0);
debug("%s: base=%#08lx, periph_id=%d, max-frequency=%d, deactivate_delay=%d\n",
__func__, plat->base, plat->periph_id, plat->frequency,
plat->deactivate_delay_us);