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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>
This commit is contained in:
Jingchang Lu 2013-08-07 17:05:43 +08:00 committed by Wolfram Sang
parent 4b775022f6
commit ad90efae1b
1 changed files with 32 additions and 0 deletions
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32
drivers/i2c/busses/i2c-imx.c
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@ -79,6 +79,7 @@
#define IMX_I2C_I2DR 0x04 /* i2c transfer data */ #define IMX_I2C_I2DR 0x04 /* i2c transfer data */
#define IMX_I2C_REGSHIFT 2 #define IMX_I2C_REGSHIFT 2
#define VF610_I2C_REGSHIFT 0
/* Bits of IMX I2C registers */ /* Bits of IMX I2C registers */
#define I2SR_RXAK 0x01 #define I2SR_RXAK 0x01
@ -140,9 +141,29 @@ static struct imx_i2c_clk_pair imx_i2c_clk_div[] = {
{ 3072, 0x1E }, { 3840, 0x1F } { 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 { enum imx_i2c_type {
IMX1_I2C, IMX1_I2C,
IMX21_I2C, IMX21_I2C,
VF610_I2C,
}; };
struct imx_i2c_hwdata { 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[] = { static struct platform_device_id imx_i2c_devtype[] = {
{ {
.name = "imx1-i2c", .name = "imx1-i2c",
@ -202,6 +233,7 @@ MODULE_DEVICE_TABLE(platform, imx_i2c_devtype);
static const struct of_device_id i2c_imx_dt_ids[] = { static const struct of_device_id i2c_imx_dt_ids[] = {
{ .compatible = "fsl,imx1-i2c", .data = &imx1_i2c_hwdata, }, { .compatible = "fsl,imx1-i2c", .data = &imx1_i2c_hwdata, },
{ .compatible = "fsl,imx21-i2c", .data = &imx21_i2c_hwdata, }, { .compatible = "fsl,imx21-i2c", .data = &imx21_i2c_hwdata, },
{ .compatible = "fsl,vf610-i2c", .data = &vf610_i2c_hwdata, },
{ /* sentinel */ } { /* sentinel */ }
}; };
MODULE_DEVICE_TABLE(of, i2c_imx_dt_ids); MODULE_DEVICE_TABLE(of, i2c_imx_dt_ids);