diff options
| author | Tom Rini <trini@konsulko.com> | 2019-04-24 12:26:25 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-04-24 12:26:25 -0400 |
| commit | ceb6ddbc73607e9395bb5f0ad94159755f049e77 (patch) | |
| tree | 626729342d117934be03db50981a4bba8ebcceca /drivers/i2c | |
| parent | 3fbd2dce351ab5d40d3244f26bd713caa4f826e2 (diff) | |
| parent | c6e4e8f99c1430e803dc2ef306935a93b46dad7c (diff) | |
Merge tag 'u-boot-amlogic-20190423' of git://git.denx.de/u-boot-amlogic
- Add support for Amlogic p200 & p201 Reference Designs
- Add Amlogic SoC information display
- Add support for the Libretech-AC AML-S805X-AC board
- Add Amlogic AXG reset compatible
- Add I2C support for Amlogic AXG
- Fix AXG PIN and BANK pinctrl definitions
- Fix regmap_read_poll_timeout warning about sandbox_timer_add_offset
- Add initial support for Amlogic G12A SoC and U200 board
- Enable PHY_REALTEK for selected boards
- Fix Khadas VIM2 README
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/meson_i2c.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/drivers/i2c/meson_i2c.c b/drivers/i2c/meson_i2c.c index 7d06d95cf3..ee59bac123 100644 --- a/drivers/i2c/meson_i2c.c +++ b/drivers/i2c/meson_i2c.c @@ -41,7 +41,12 @@ struct i2c_regs { u32 tok_rdata1; }; +struct meson_i2c_data { + unsigned char div_factor; +}; + struct meson_i2c { + const struct meson_i2c_data *data; struct clk clk; struct i2c_regs *regs; struct i2c_msg *msg; /* Current I2C message */ @@ -229,7 +234,7 @@ static int meson_i2c_set_bus_speed(struct udevice *bus, unsigned int speed) if (IS_ERR_VALUE(clk_rate)) return -EINVAL; - div = DIV_ROUND_UP(clk_rate, speed * 4); + div = DIV_ROUND_UP(clk_rate, speed * i2c->data->div_factor); /* clock divider has 12 bits */ if (div >= (1 << 12)) { @@ -253,6 +258,8 @@ static int meson_i2c_probe(struct udevice *bus) struct meson_i2c *i2c = dev_get_priv(bus); int ret; + i2c->data = (const struct meson_i2c_data *)dev_get_driver_data(bus); + ret = clk_get_by_index(bus, 0, &i2c->clk); if (ret < 0) return ret; @@ -272,11 +279,24 @@ static const struct dm_i2c_ops meson_i2c_ops = { .set_bus_speed = meson_i2c_set_bus_speed, }; +static const struct meson_i2c_data i2c_meson6_data = { + .div_factor = 4, +}; + +static const struct meson_i2c_data i2c_gxbb_data = { + .div_factor = 4, +}; + +static const struct meson_i2c_data i2c_axg_data = { + .div_factor = 3, +}; + static const struct udevice_id meson_i2c_ids[] = { - { .compatible = "amlogic,meson6-i2c" }, - { .compatible = "amlogic,meson-gx-i2c" }, - { .compatible = "amlogic,meson-gxbb-i2c" }, - { } + {.compatible = "amlogic,meson6-i2c", .data = (ulong)&i2c_meson6_data}, + {.compatible = "amlogic,meson-gx-i2c", .data = (ulong)&i2c_gxbb_data}, + {.compatible = "amlogic,meson-gxbb-i2c", .data = (ulong)&i2c_gxbb_data}, + {.compatible = "amlogic,meson-axg-i2c", .data = (ulong)&i2c_axg_data}, + {} }; U_BOOT_DRIVER(i2c_meson) = { |