diff options
| author | Michal Simek <michal.simek@xilinx.com> | 2016-04-14 14:15:47 +0200 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2016-05-17 08:28:48 +0200 |
| commit | a13767bc0ee8ccaf4e7f64192e7f1d408dc7f900 (patch) | |
| tree | 88cfd6f574117cd44d93603ae7e5b570de397015 | |
| parent | aeaec0e682f45b9e0c62c522fafea353931f73ed (diff) | |
i2c: cdns: Read address from DT in ofdata_to_platdata
Extract reading IP base address in function which is designed for it.
Also enable option to read more information from DT in this function.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
| -rw-r--r-- | drivers/i2c/i2c-cdns.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/i2c/i2c-cdns.c b/drivers/i2c/i2c-cdns.c index 909cea2418..66bd580aad 100644 --- a/drivers/i2c/i2c-cdns.c +++ b/drivers/i2c/i2c-cdns.c @@ -125,10 +125,6 @@ static int cdns_i2c_probe(struct udevice *dev) { struct i2c_cdns_bus *bus = dev_get_priv(dev); - bus->regs = (struct cdns_i2c_regs *)dev_get_addr(dev); - if (!bus->regs) - return -ENOMEM; - /* TODO: Calculate dividers based on CPU_CLK_1X */ /* 111MHz / ( (3 * 17) * 22 ) = ~100KHz */ writel((16 << CDNS_I2C_CONTROL_DIV_B_SHIFT) | @@ -313,6 +309,17 @@ static int cdns_i2c_xfer(struct udevice *dev, struct i2c_msg *msg, return 0; } +static int cdns_i2c_ofdata_to_platdata(struct udevice *dev) +{ + struct i2c_cdns_bus *i2c_bus = dev_get_priv(dev); + + i2c_bus->regs = (struct cdns_i2c_regs *)dev_get_addr(dev); + if (!i2c_bus->regs) + return -ENOMEM; + + return 0; +} + static const struct dm_i2c_ops cdns_i2c_ops = { .xfer = cdns_i2c_xfer, .probe_chip = cdns_i2c_probe_chip, @@ -330,6 +337,7 @@ U_BOOT_DRIVER(cdns_i2c) = { .of_match = cdns_i2c_of_match, .probe = cdns_i2c_probe, .remove = cdns_i2c_remove, + .ofdata_to_platdata = cdns_i2c_ofdata_to_platdata, .priv_auto_alloc_size = sizeof(struct i2c_cdns_bus), .ops = &cdns_i2c_ops, }; |