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| author | Jingchang Lu <b35083@freescale.com> | 2013-08-07 17:05:43 +0800 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2013-08-15 16:14:50 +0200 |
| commit | ad90efae1b9203baeb0f6fd668e6c61c2377bd5f (patch) | |
| tree | 575cc9b933551265bab15dc4e9634823b645f38a /drivers/i2c | |
| parent | 4b775022f6fdcfba6d219f46b2606e77a0dc38d9 (diff) | |
| download | lwn-ad90efae1b9203baeb0f6fd668e6c61c2377bd5f.tar.gz lwn-ad90efae1b9203baeb0f6fd668e6c61c2377bd5f.zip | |
i2c: imx: Add Vybrid VF610 I2C controller support
Add Freescale Vybrid VF610 I2C controller support to
imx I2C driver framework.
Signed-off-by: Jason Jin <Jason.jin@freescale.com>
Signed-off-by: Jingchang Lu <b35083@freescale.com>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-imx.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index ce31196bb5e7..9c0f8bda692a 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -79,6 +79,7 @@ #define IMX_I2C_I2DR 0x04 /* i2c transfer data */ #define IMX_I2C_REGSHIFT 2 +#define VF610_I2C_REGSHIFT 0 /* Bits of IMX I2C registers */ #define I2SR_RXAK 0x01 @@ -140,9 +141,29 @@ static struct imx_i2c_clk_pair imx_i2c_clk_div[] = { { 3072, 0x1E }, { 3840, 0x1F } }; +/* Vybrid VF610 clock divider, register value pairs */ +static struct imx_i2c_clk_pair vf610_i2c_clk_div[] = { + { 20, 0x00 }, { 22, 0x01 }, { 24, 0x02 }, { 26, 0x03 }, + { 28, 0x04 }, { 30, 0x05 }, { 32, 0x09 }, { 34, 0x06 }, + { 36, 0x0A }, { 40, 0x07 }, { 44, 0x0C }, { 48, 0x0D }, + { 52, 0x43 }, { 56, 0x0E }, { 60, 0x45 }, { 64, 0x12 }, + { 68, 0x0F }, { 72, 0x13 }, { 80, 0x14 }, { 88, 0x15 }, + { 96, 0x19 }, { 104, 0x16 }, { 112, 0x1A }, { 128, 0x17 }, + { 136, 0x4F }, { 144, 0x1C }, { 160, 0x1D }, { 176, 0x55 }, + { 192, 0x1E }, { 208, 0x56 }, { 224, 0x22 }, { 228, 0x24 }, + { 240, 0x1F }, { 256, 0x23 }, { 288, 0x5C }, { 320, 0x25 }, + { 384, 0x26 }, { 448, 0x2A }, { 480, 0x27 }, { 512, 0x2B }, + { 576, 0x2C }, { 640, 0x2D }, { 768, 0x31 }, { 896, 0x32 }, + { 960, 0x2F }, { 1024, 0x33 }, { 1152, 0x34 }, { 1280, 0x35 }, + { 1536, 0x36 }, { 1792, 0x3A }, { 1920, 0x37 }, { 2048, 0x3B }, + { 2304, 0x3C }, { 2560, 0x3D }, { 3072, 0x3E }, { 3584, 0x7A }, + { 3840, 0x3F }, { 4096, 0x7B }, { 5120, 0x7D }, { 6144, 0x7E }, +}; + enum imx_i2c_type { IMX1_I2C, IMX21_I2C, + VF610_I2C, }; struct imx_i2c_hwdata { @@ -186,6 +207,16 @@ static const struct imx_i2c_hwdata imx21_i2c_hwdata = { }; +static struct imx_i2c_hwdata vf610_i2c_hwdata = { + .devtype = VF610_I2C, + .regshift = VF610_I2C_REGSHIFT, + .clk_div = vf610_i2c_clk_div, + .ndivs = ARRAY_SIZE(vf610_i2c_clk_div), + .i2sr_clr_opcode = I2SR_CLR_OPCODE_W1C, + .i2cr_ien_opcode = I2CR_IEN_OPCODE_0, + +}; + static struct platform_device_id imx_i2c_devtype[] = { { .name = "imx1-i2c", @@ -202,6 +233,7 @@ MODULE_DEVICE_TABLE(platform, imx_i2c_devtype); static const struct of_device_id i2c_imx_dt_ids[] = { { .compatible = "fsl,imx1-i2c", .data = &imx1_i2c_hwdata, }, { .compatible = "fsl,imx21-i2c", .data = &imx21_i2c_hwdata, }, + { .compatible = "fsl,vf610-i2c", .data = &vf610_i2c_hwdata, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, i2c_imx_dt_ids); |