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dts: i2c: Add dts support for i2c

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Change-Id: I9104f5230a4efbf1b6979e146e7ea73a76891947
Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
This commit is contained in:
Savinay Dharmappa 2018-03-28 04:57:36 +05:30 • committed by Anas Nashif
commit 9ee4929d56
4 changed files with 28 additions and 0 deletions
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9
arch/xtensa/soc/intel_s1000/dts.fixup
View file

@ -8,4 +8,13 @@
#define L2_SRAM_SIZE CONFIG_SRAM_SIZE_0 * 1024
#define CONFIG_I2C_0_BASE_ADDR SNPS_DESIGNWARE_I2C_80400_BASE_ADDRESS
#define CONFIG_I2C_0_BITRATE SNPS_DESIGNWARE_I2C_80400_CLOCK_FREQUENCY
#define CONFIG_I2C_0_NAME SNPS_DESIGNWARE_I2C_80400_LABEL
#define CONFIG_I2C_0_IRQ (SNPS_DESIGNWARE_I2C_80400_IRQ_0 << 16) | DW_ICTL_IRQ
#define CONFIG_I2C_0_IRQ_FLAGS SNPS_DESIGNWARE_I2C_80400_IRQ_0_SENSE
/* End of SoC Level DTS fixup file */

1
boards/xtensa/intel_s1000_crb/Kconfig.board
View file

@ -7,3 +7,4 @@ config BOARD_INTEL_S1000_CRB
bool "Xtensa on Intel_S1000"
depends on SOC_INTEL_S1000
select HAS_DTS
select HAS_DTS_I2C

4
boards/xtensa/intel_s1000_crb/intel_s1000_crb.dts
View file

@ -21,3 +21,7 @@
current-speed = <115200>;
};
&i2c0 {
status = "ok";
clock-frequency = <I2C_BITRATE_FAST>;
};

14
dts/xtensa/intel_s1000.dtsi
View file

@ -1,4 +1,5 @@
#include "skeleton.dtsi"
#include <dt-bindings/i2c/i2c.h>
#define __SIZE_K(x) (x * 1024)
@ -40,5 +41,18 @@
status = "disabled";
};
i2c0: i2c@80400 {
compatible = "snps,designware-i2c";
clock-frequency = <I2C_BITRATE_STANDARD>;
#address-cells = <1>;
#size-cells = <0>;
reg = <0x80400 0x400>;
interrupts = <2 0>;
interrupt-parent = <&intc>;
label = "I2C_0";
status = "disabled";
};
};
};