[PATCH 1/7] I2C: i.MX: Add early i2c support for i.MX6

[John Watts]

Signed-off-by: John Watts <contact at jookia.org>
---
 drivers/i2c/busses/i2c-imx-early.c | 14 ++++++++++++++
 include/pbl/i2c.h                  |  1 +
 2 files changed, 15 insertions(+)

diff --git a/drivers/i2c/busses/i2c-imx-early.c b/drivers/i2c/busses/i2c-imx-early.c
index 4e0f7e517d..6c8bdc7904 100644
--- a/drivers/i2c/busses/i2c-imx-early.c
+++ b/drivers/i2c/busses/i2c-imx-early.c
@@ -303,6 +303,20 @@ struct pbl_i2c *ls1046_i2c_init(void __iomem *regs)
 	return &fsl_i2c.i2c;
 }
 
+struct pbl_i2c *imx6_i2c_early_init(void __iomem *regs)
+{
+	fsl_i2c.regs = regs;
+	fsl_i2c.regshift = 2;
+	fsl_i2c.i2cr_ien_opcode = I2CR_IEN_OPCODE_1;
+	fsl_i2c.i2sr_clr_opcode = I2SR_CLR_OPCODE_W0C;
+	/* Divider for ~100kHz when coming from the ROM */
+	fsl_i2c.ifdr = 0x36;
+
+	fsl_i2c.i2c.xfer = i2c_fsl_xfer;
+
+	return &fsl_i2c.i2c;
+}
+
 struct pbl_i2c *imx8m_i2c_early_init(void __iomem *regs)
 {
 	fsl_i2c.regs = regs;
diff --git a/include/pbl/i2c.h b/include/pbl/i2c.h
index d9910f531f..32e456d46b 100644
--- a/include/pbl/i2c.h
+++ b/include/pbl/i2c.h
@@ -16,6 +16,7 @@ static inline int pbl_i2c_xfer(struct pbl_i2c *i2c,
 }
 
 struct pbl_i2c *imx8m_i2c_early_init(void __iomem *regs);
+struct pbl_i2c *imx6_i2c_early_init(void __iomem *regs);
 struct pbl_i2c *ls1046_i2c_init(void __iomem *regs);
 
 static inline int i2c_dev_probe(struct pbl_i2c *i2c, int addr, bool onebyte)
-- 
2.39.0