summaryrefslogtreecommitdiff
path: root/drivers/i2c
diff options
context:
space:
mode:
authorJean-Jacques Hiblot <jjhiblot@ti.com>2018-12-07 14:50:42 +0100
committerHeiko Schocher <hs@denx.de>2018-12-10 06:11:18 +0100
commit5f97ae681428f5623503e3e4b6d8d2c34b76ea3d (patch)
tree6f74bd607623586d1ff2ea5b20f4f2218188219f /drivers/i2c
parentbca09ce4b044b3a517f18e40902b0a399ffab361 (diff)
i2c: omap24xx_i2c: Use platdata to probe the device
This allows the driver to be used without OF_CONTROL. AM335x support DM_SPL but does not use SPL_OF_CONTROL. Enabling DM_I2C in SPL thus requires that the omap I2C can be passed platdata. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/omap24xx_i2c.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/i2c/omap24xx_i2c.c b/drivers/i2c/omap24xx_i2c.c
index 9f716396da..4b93e02bbe 100644
--- a/drivers/i2c/omap24xx_i2c.c
+++ b/drivers/i2c/omap24xx_i2c.c
@@ -43,6 +43,7 @@
#include <i2c.h>
#include <asm/io.h>
+#include <asm/omap_i2c.h>
/*
* Provide access to architecture-specific I2C header files for platforms
@@ -62,11 +63,6 @@
#define I2C_WAIT 200
enum {
- OMAP_I2C_REV_V1 = 0,
- OMAP_I2C_REV_V2 = 1,
-};
-
-enum {
OMAP_I2C_REV_REG = 0, /* Only on IP V1 (OMAP34XX) */
OMAP_I2C_IE_REG, /* Only on IP V1 (OMAP34XX) */
OMAP_I2C_STAT_REG,
@@ -1051,8 +1047,12 @@ static int omap_i2c_probe_chip(struct udevice *bus, uint chip_addr,
static int omap_i2c_probe(struct udevice *bus)
{
struct omap_i2c *priv = dev_get_priv(bus);
+ struct omap_i2c_platdata *plat = dev_get_platdata(bus);
- priv->ip_rev = dev_get_driver_data(bus);
+ priv->speed = plat->speed;
+ priv->regs = map_physmem(plat->base, sizeof(void *),
+ MAP_NOCACHE);
+ priv->ip_rev = plat->ip_rev;
__omap24_i2c_init(priv->regs, priv->ip_rev, priv->speed, 0,
&priv->waitdelay);
@@ -1063,11 +1063,11 @@ static int omap_i2c_probe(struct udevice *bus)
#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
static int omap_i2c_ofdata_to_platdata(struct udevice *bus)
{
- struct omap_i2c *priv = dev_get_priv(bus);
+ struct omap_i2c_platdata *plat = dev_get_platdata(bus);
- priv->regs = map_physmem(devfdt_get_addr(bus), sizeof(void *),
- MAP_NOCACHE);
- priv->speed = CONFIG_SYS_OMAP24_I2C_SPEED;
+ plat->base = devfdt_get_addr(bus);
+ plat->speed = dev_read_u32_default(bus, "clock-frequency", 100000);
+ plat->ip_rev = dev_get_driver_data(bus);
return 0;
}
@@ -1091,6 +1091,7 @@ U_BOOT_DRIVER(i2c_omap) = {
#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
.of_match = omap_i2c_ids,
.ofdata_to_platdata = omap_i2c_ofdata_to_platdata,
+ .platdata_auto_alloc_size = sizeof(struct omap_i2c_platdata),
#endif
.probe = omap_i2c_probe,
.priv_auto_alloc_size = sizeof(struct omap_i2c),