diff options
| author | Heiko Schocher <hs@denx.de> | 2015-05-18 10:58:12 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-05-26 14:17:00 +0200 |
| commit | e6c8b716c7035fd2b80d0b938e736176053b9ef6 (patch) | |
| tree | 105766702b9ff40ef12216ebd4ce8e778e7d9144 /drivers | |
| parent | 21a26940f9048e668f9a79f64b802406b2e8d18c (diff) | |
| download | talos-obmc-uboot-e6c8b716c7035fd2b80d0b938e736176053b9ef6.tar.gz talos-obmc-uboot-e6c8b716c7035fd2b80d0b938e736176053b9ef6.zip | |
i2c, mxc: rework i2c base address names for different SoCs
rework and unify i2c address names for different SoCs, which
use the mxc_i2c driver.
Signed-off-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/mxc_i2c.c | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index 2949e52b72..b3c50aaf30 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -170,6 +170,9 @@ static int bus_i2c_set_bus_speed(struct mxc_i2c_bus *i2c_bus, int speed) u8 idx = i2c_clk_div[clk_idx][1]; int reg_shift = quirk ? VF610_I2C_REGSHIFT : IMX_I2C_REGSHIFT; + if (!base) + return -ENODEV; + /* Store divider value */ writeb(idx, base + (IFDR << reg_shift)); @@ -351,6 +354,10 @@ static int i2c_init_transfer(struct mxc_i2c_bus *i2c_bus, u8 chip, int ret; int reg_shift = i2c_bus->driver_data & I2C_QUIRK_FLAG ? VF610_I2C_REGSHIFT : IMX_I2C_REGSHIFT; + + if (!i2c_bus->base) + return -ENODEV; + for (retry = 0; retry < 3; retry++) { ret = i2c_init_transfer_(i2c_bus, chip, addr, alen); if (ret >= 0) @@ -503,38 +510,30 @@ static int bus_i2c_write(struct mxc_i2c_bus *i2c_bus, u8 chip, u32 addr, return ret; } -static struct mxc_i2c_bus mxc_i2c_buses[] = { -#if defined(CONFIG_MX25) - { 0, IMX_I2C_BASE }, - { 1, IMX_I2C2_BASE }, - { 2, IMX_I2C3_BASE }, -#elif defined(CONFIG_MX27) - { 0, IMX_I2C1_BASE }, - { 1, IMX_I2C2_BASE }, -#elif defined(CONFIG_MX31) || defined(CONFIG_MX35) || \ - defined(CONFIG_MX51) || defined(CONFIG_MX53) || \ - defined(CONFIG_MX6) - { 0, I2C1_BASE_ADDR }, - { 1, I2C2_BASE_ADDR }, - { 2, I2C3_BASE_ADDR }, -#if defined(CONFIG_MX6DL) - { 3, I2C4_BASE_ADDR }, +#if !defined(I2C2_BASE_ADDR) +#define I2C2_BASE_ADDR 0 #endif -#elif defined(CONFIG_LS102XA) - { 0, I2C1_BASE_ADDR, I2C_QUIRK_FLAG }, - { 1, I2C2_BASE_ADDR, I2C_QUIRK_FLAG }, - { 2, I2C3_BASE_ADDR, I2C_QUIRK_FLAG }, -#elif defined(CONFIG_VF610) - { 0, I2C0_BASE_ADDR, I2C_QUIRK_FLAG }, -#elif defined(CONFIG_FSL_LSCH3) + +#if !defined(I2C3_BASE_ADDR) +#define I2C3_BASE_ADDR 0 +#endif + +#if !defined(I2C4_BASE_ADDR) +#define I2C4_BASE_ADDR 0 +#endif + +static struct mxc_i2c_bus mxc_i2c_buses[] = { +#if defined(CONFIG_LS102XA) || defined(CONFIG_FSL_LSCH3) { 0, I2C1_BASE_ADDR, I2C_QUIRK_FLAG }, { 1, I2C2_BASE_ADDR, I2C_QUIRK_FLAG }, { 2, I2C3_BASE_ADDR, I2C_QUIRK_FLAG }, { 3, I2C4_BASE_ADDR, I2C_QUIRK_FLAG }, #else -#error "architecture not supported" + { 0, I2C1_BASE_ADDR, 0 }, + { 1, I2C2_BASE_ADDR, 0 }, + { 2, I2C3_BASE_ADDR, 0 }, + { 3, I2C4_BASE_ADDR, 0 }, #endif - { } }; struct mxc_i2c_bus *i2c_get_base(struct i2c_adapter *adap) |
