From 3d66ac7d81ac70dfaab8a573f7ad2be94f7d6da3 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Wed, 12 Jun 2013 18:53:32 +0200 Subject: [PATCH] i2c: mv64xxx: Add Allwinner sun4i compatible Add the compatible string for the Allwinner A10 i2c controller and the associated register layout. Signed-off-by: Maxime Ripard Tested-by: Sebastian Hesselbarth Tested-by: Andrew Lunn Signed-off-by: Wolfram Sang --- drivers/i2c/busses/Kconfig | 3 ++- drivers/i2c/busses/i2c-mv64xxx.c | 11 +++++++++++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 6582611bfee6..96c6d82da3ed 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -497,10 +497,11 @@ config I2C_MPC config I2C_MV64XXX tristate "Marvell mv64xxx I2C Controller" - depends on (MV64X60 || PLAT_ORION) + depends on (MV64X60 || PLAT_ORION || ARCH_SUNXI) help If you say yes to this option, support will be included for the built-in I2C interface on the Marvell 64xxx line of host bridges. + This driver is also used for Allwinner SoCs I2C controllers. This driver can also be built as a module. If so, the module will be called i2c-mv64xxx. diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index 7ba9bac18478..7a0e39b7f928 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c @@ -129,6 +129,16 @@ static struct mv64xxx_i2c_regs mv64xxx_i2c_regs_mv64xxx = { .soft_reset = 0x1c, }; +static struct mv64xxx_i2c_regs mv64xxx_i2c_regs_sun4i = { + .addr = 0x00, + .ext_addr = 0x04, + .data = 0x08, + .control = 0x0c, + .status = 0x10, + .clock = 0x14, + .soft_reset = 0x18, +}; + static void mv64xxx_i2c_prepare_for_io(struct mv64xxx_i2c_data *drv_data, struct i2c_msg *msg) @@ -509,6 +519,7 @@ static const struct i2c_algorithm mv64xxx_i2c_algo = { ***************************************************************************** */ static const struct of_device_id mv64xxx_i2c_of_match_table[] = { + { .compatible = "allwinner,sun4i-i2c", .data = &mv64xxx_i2c_regs_sun4i}, { .compatible = "marvell,mv64xxx-i2c", .data = &mv64xxx_i2c_regs_mv64xxx}, {} };