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>

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);