projects
/
oweals
/
u-boot.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
dm: gpio: Allow control of GPIO uclass in SPL
[oweals/u-boot.git]
/
drivers
/
spi
/
atmel_spi.c
diff --git
a/drivers/spi/atmel_spi.c
b/drivers/spi/atmel_spi.c
index 4701b79f161f46b38c1cd39c4580e91248e08740..f076e92a93c59e01c99428c61a8adeca46446709 100644
(file)
--- a/
drivers/spi/atmel_spi.c
+++ b/
drivers/spi/atmel_spi.c
@@
-1,7
+1,6
@@
+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2007 Atmel Corporation
/*
* Copyright (C) 2007 Atmel Corporation
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <clk.h>
*/
#include <common.h>
#include <clk.h>
@@
-18,14
+17,12
@@
#ifdef CONFIG_DM_SPI
#include <asm/arch/at91_spi.h>
#endif
#ifdef CONFIG_DM_SPI
#include <asm/arch/at91_spi.h>
#endif
-#if
def CONFIG_DM_GPIO
+#if
CONFIG_IS_ENABLED(DM_GPIO)
#include <asm/gpio.h>
#endif
#include "atmel_spi.h"
#include <asm/gpio.h>
#endif
#include "atmel_spi.h"
-DECLARE_GLOBAL_DATA_PTR;
-
#ifndef CONFIG_DM_SPI
static int spi_has_wdrbt(struct atmel_spi_slave *slave)
#ifndef CONFIG_DM_SPI
static int spi_has_wdrbt(struct atmel_spi_slave *slave)
@@
-37,11
+34,6
@@
static int spi_has_wdrbt(struct atmel_spi_slave *slave)
return (ATMEL_SPI_VERSION_REV(ver) >= 0x210);
}
return (ATMEL_SPI_VERSION_REV(ver) >= 0x210);
}
-void spi_init()
-{
-
-}
-
struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
unsigned int max_hz, unsigned int mode)
{
struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
unsigned int max_hz, unsigned int mode)
{
@@
-236,7
+228,9
@@
struct atmel_spi_priv {
unsigned int freq; /* Default frequency */
unsigned int mode;
ulong bus_clk_rate;
unsigned int freq; /* Default frequency */
unsigned int mode;
ulong bus_clk_rate;
+#if CONFIG_IS_ENABLED(DM_GPIO)
struct gpio_desc cs_gpios[MAX_CS_COUNT];
struct gpio_desc cs_gpios[MAX_CS_COUNT];
+#endif
};
static int atmel_spi_claim_bus(struct udevice *dev)
};
static int atmel_spi_claim_bus(struct udevice *dev)
@@
-291,6
+285,7
@@
static int atmel_spi_release_bus(struct udevice *dev)
static void atmel_spi_cs_activate(struct udevice *dev)
{
static void atmel_spi_cs_activate(struct udevice *dev)
{
+#if CONFIG_IS_ENABLED(DM_GPIO)
struct udevice *bus = dev_get_parent(dev);
struct atmel_spi_priv *priv = dev_get_priv(bus);
struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
struct udevice *bus = dev_get_parent(dev);
struct atmel_spi_priv *priv = dev_get_priv(bus);
struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
@@
-300,10
+295,12
@@
static void atmel_spi_cs_activate(struct udevice *dev)
return;
dm_gpio_set_value(&priv->cs_gpios[cs], 0);
return;
dm_gpio_set_value(&priv->cs_gpios[cs], 0);
+#endif
}
static void atmel_spi_cs_deactivate(struct udevice *dev)
{
}
static void atmel_spi_cs_deactivate(struct udevice *dev)
{
+#if CONFIG_IS_ENABLED(DM_GPIO)
struct udevice *bus = dev_get_parent(dev);
struct atmel_spi_priv *priv = dev_get_priv(bus);
struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
struct udevice *bus = dev_get_parent(dev);
struct atmel_spi_priv *priv = dev_get_priv(bus);
struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
@@
-313,6
+310,7
@@
static void atmel_spi_cs_deactivate(struct udevice *dev)
return;
dm_gpio_set_value(&priv->cs_gpios[cs], 1);
return;
dm_gpio_set_value(&priv->cs_gpios[cs], 1);
+#endif
}
static int atmel_spi_xfer(struct udevice *dev, unsigned int bitlen,
}
static int atmel_spi_xfer(struct udevice *dev, unsigned int bitlen,
@@
-394,8
+392,8
@@
out:
* Wait until the transfer is completely done before
* we deactivate CS.
*/
* Wait until the transfer is completely done before
* we deactivate CS.
*/
- wait_for_bit
(__func__,
®_base->sr,
- ATMEL_SPI_SR_TXEMPTY, true, 1000, false);
+ wait_for_bit
_le32(
®_base->sr,
+
ATMEL_SPI_SR_TXEMPTY, true, 1000, false);
atmel_spi_cs_deactivate(dev);
}
atmel_spi_cs_deactivate(dev);
}
@@
-462,19
+460,22
@@
static int atmel_spi_enable_clk(struct udevice *bus)
static int atmel_spi_probe(struct udevice *bus)
{
struct atmel_spi_platdata *bus_plat = dev_get_platdata(bus);
static int atmel_spi_probe(struct udevice *bus)
{
struct atmel_spi_platdata *bus_plat = dev_get_platdata(bus);
- struct atmel_spi_priv *priv = dev_get_priv(bus);
- int i, ret;
+ int ret;
ret = atmel_spi_enable_clk(bus);
if (ret)
return ret;
ret = atmel_spi_enable_clk(bus);
if (ret)
return ret;
- bus_plat->regs = (struct at91_spi *)dev_get_addr(bus);
+ bus_plat->regs = (struct at91_spi *)devfdt_get_addr(bus);
+
+#if CONFIG_IS_ENABLED(DM_GPIO)
+ struct atmel_spi_priv *priv = dev_get_priv(bus);
+ int i;
ret = gpio_request_list_by_name(bus, "cs-gpios", priv->cs_gpios,
ARRAY_SIZE(priv->cs_gpios), 0);
if (ret < 0) {
ret = gpio_request_list_by_name(bus, "cs-gpios", priv->cs_gpios,
ARRAY_SIZE(priv->cs_gpios), 0);
if (ret < 0) {
-
erro
r("Can't get %s gpios! Error: %d", bus->name, ret);
+
pr_er
r("Can't get %s gpios! Error: %d", bus->name, ret);
return ret;
}
return ret;
}
@@
-485,6
+486,7
@@
static int atmel_spi_probe(struct udevice *bus)
dm_gpio_set_dir_flags(&priv->cs_gpios[i],
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
}
dm_gpio_set_dir_flags(&priv->cs_gpios[i],
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
}
+#endif
writel(ATMEL_SPI_CR_SWRST, &bus_plat->regs->cr);
writel(ATMEL_SPI_CR_SWRST, &bus_plat->regs->cr);