blob: be4fdd8c0f154e0d87353b1f966c8e0c698d4a71 [file] [log] [blame]
From ba27a37aafaa504af71b55afed614504f61e5eaf Mon Sep 17 00:00:00 2001
From: Jingchang Lu <b35083@freescale.com>
Date: Wed, 7 Aug 2013 17:05:43 +0800
Subject: 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>
(cherry picked from commit ad90efae1b9203baeb0f6fd668e6c61c2377bd5f)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
---
drivers/i2c/busses/i2c-imx.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
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);
--
1.8.5.rc3