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i2c: fsl_i2c: Make live-tree compatible

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Make the fsl_i2c driver compatible with a live device tree.

Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
This commit is contained in:
Mario Six 2018-01-15 11:08:09 +01:00 • committed by Heiko Schocher
parent d4f422f886
commit 84a4d34e96
1 changed files with 6 additions and 10 deletions
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16
drivers/i2c/fsl_i2c.c
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@ -574,22 +574,18 @@ static int fsl_i2c_ofdata_to_platdata(struct udevice *bus)
{ {
struct fsl_i2c_dev *dev = dev_get_priv(bus); struct fsl_i2c_dev *dev = dev_get_priv(bus);
fdt_addr_t addr; fdt_addr_t addr;
fdt_size_t size;
int node = dev_of_offset(bus);
addr = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob, node, "reg", 0, addr = dev_read_u32_default(bus, "reg", -1);
&size, false);
dev->base = map_sysmem(CONFIG_SYS_IMMR + addr, size); dev->base = map_sysmem(CONFIG_SYS_IMMR + addr, sizeof(struct fsl_i2c_base));
if (!dev->base) if (!dev->base)
return -ENOMEM; return -ENOMEM;
dev->index = fdtdec_get_int(gd->fdt_blob, node, "cell-index", -1); dev->index = dev_read_u32_default(bus, "cell-index", -1);
dev->slaveadd = fdtdec_get_int(gd->fdt_blob, node, dev->slaveadd = dev_read_u32_default(bus, "u-boot,i2c-slave-addr",
"u-boot,i2c-slave-addr", 0x7f); 0x7f);
dev->speed = fdtdec_get_int(gd->fdt_blob, node, "clock-frequency", dev->speed = dev_read_u32_default(bus, "clock-frequency", 400000);
400000);
dev->i2c_clk = dev->index ? gd->arch.i2c2_clk : gd->arch.i2c1_clk; dev->i2c_clk = dev->index ? gd->arch.i2c2_clk : gd->arch.i2c1_clk;