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-rw-r--r--Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml12
-rw-r--r--Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml159
-rw-r--r--Documentation/devicetree/bindings/vendor-prefixes.yaml2
-rw-r--r--arch/arm64/boot/dts/exynos/exynos5433.dtsi24
-rw-r--r--arch/arm64/boot/dts/exynos/exynos7.dtsi24
-rw-r--r--arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts4
-rw-r--r--arch/arm64/boot/dts/exynos/exynosautov9.dtsi36
-rw-r--r--include/dt-bindings/pinctrl/samsung.h13
-rw-r--r--include/dt-bindings/soc/samsung,exynos-usi.h17
9 files changed, 258 insertions, 33 deletions
diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
index ef6dc14be4b5..052cd94113d4 100644
--- a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
+++ b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
@@ -199,6 +199,18 @@ properties:
- samsung,exynos7-espresso # Samsung Exynos7 Espresso
- const: samsung,exynos7
+ - description: Exynos7885 based boards
+ items:
+ - enum:
+ - samsung,jackpotlte # Samsung Galaxy A8 (2018)
+ - const: samsung,exynos7885
+
+ - description: Exynos850 based boards
+ items:
+ - enum:
+ - winlink,e850-96 # WinLink E850-96
+ - const: samsung,exynos850
+
- description: Exynos Auto v9 based boards
items:
- enum:
diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
new file mode 100644
index 000000000000..273f2d95a043
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/samsung/exynos-usi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung's Exynos USI (Universal Serial Interface) binding
+
+maintainers:
+ - Sam Protsenko <semen.protsenko@linaro.org>
+ - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+description: |
+ USI IP-core provides selectable serial protocol (UART, SPI or High-Speed I2C).
+ USI shares almost all internal circuits within each protocol, so only one
+ protocol can be chosen at a time. USI is modeled as a node with zero or more
+ child nodes, each representing a serial sub-node device. The mode setting
+ selects which particular function will be used.
+
+ Refer to next bindings documentation for information on protocol subnodes that
+ can exist under USI node:
+
+ [1] Documentation/devicetree/bindings/serial/samsung_uart.yaml
+ [2] Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
+ [3] Documentation/devicetree/bindings/spi/spi-samsung.txt
+
+properties:
+ $nodename:
+ pattern: "^usi@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - samsung,exynos850-usi # for USIv2 (Exynos850, ExynosAutoV9)
+
+ reg: true
+
+ clocks: true
+
+ clock-names: true
+
+ ranges: true
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ samsung,sysreg:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ Should be phandle/offset pair. The phandle to System Register syscon node
+ (for the same domain where this USI controller resides) and the offset
+ of SW_CONF register for this USI controller.
+
+ samsung,mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Selects USI function (which serial protocol to use). Refer to
+ <include/dt-bindings/soc/samsung,exynos-usi.h> for valid USI mode values.
+
+ samsung,clkreq-on:
+ type: boolean
+ description:
+ Enable this property if underlying protocol requires the clock to be
+ continuously provided without automatic gating. As suggested by SoC
+ manual, it should be set in case of SPI/I2C slave, UART Rx and I2C
+ multi-master mode. Usually this property is needed if USI mode is set
+ to "UART".
+
+ This property is optional.
+
+patternProperties:
+ # All other properties should be child nodes
+ "^(serial|spi|i2c)@[0-9a-f]+$":
+ type: object
+ description: Child node describing underlying USI serial protocol
+
+required:
+ - compatible
+ - ranges
+ - "#address-cells"
+ - "#size-cells"
+ - samsung,sysreg
+ - samsung,mode
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos850-usi
+
+then:
+ properties:
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Bus (APB) clock
+ - description: Operating clock for UART/SPI/I2C protocol
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: ipclk
+
+ required:
+ - reg
+ - clocks
+ - clock-names
+
+else:
+ properties:
+ reg: false
+ clocks: false
+ clock-names: false
+ samsung,clkreq-on: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/soc/samsung,exynos-usi.h>
+
+ usi0: usi@138200c0 {
+ compatible = "samsung,exynos850-usi";
+ reg = <0x138200c0 0x20>;
+ samsung,sysreg = <&sysreg_peri 0x1010>;
+ samsung,mode = <USI_V2_UART>;
+ samsung,clkreq-on; /* needed for UART mode */
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ clocks = <&cmu_peri 32>, <&cmu_peri 31>;
+ clock-names = "pclk", "ipclk";
+
+ serial_0: serial@13820000 {
+ compatible = "samsung,exynos850-uart";
+ reg = <0x13820000 0xc0>;
+ interrupts = <GIC_SPI 227 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cmu_peri 32>, <&cmu_peri 31>;
+ clock-names = "uart", "clk_uart_baud0";
+ status = "disabled";
+ };
+
+ hsi2c_0: i2c@13820000 {
+ compatible = "samsung,exynosautov9-hsi2c";
+ reg = <0x13820000 0xc0>;
+ interrupts = <GIC_SPI 227 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&cmu_peri 31>, <&cmu_peri 32>;
+ clock-names = "hsi2c", "hsi2c_pclk";
+ status = "disabled";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index b491666ba620..6e2ac5bd16f8 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -1322,6 +1322,8 @@ patternProperties:
description: Wiligear, Ltd.
"^winbond,.*":
description: Winbond Electronics corp.
+ "^winlink,.*":
+ description: WinLink Co., Ltd
"^winstar,.*":
description: Winstar Display Corp.
"^wits,.*":
diff --git a/arch/arm64/boot/dts/exynos/exynos5433.dtsi b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
index 4422021cf4b2..bfe4ed8a23d6 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
@@ -1585,7 +1585,7 @@
status = "disabled";
};
- hsi2c_0: hsi2c@14e40000 {
+ hsi2c_0: i2c@14e40000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14e40000 0x1000>;
interrupts = <GIC_SPI 428 IRQ_TYPE_LEVEL_HIGH>;
@@ -1598,7 +1598,7 @@
status = "disabled";
};
- hsi2c_1: hsi2c@14e50000 {
+ hsi2c_1: i2c@14e50000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14e50000 0x1000>;
interrupts = <GIC_SPI 429 IRQ_TYPE_LEVEL_HIGH>;
@@ -1611,7 +1611,7 @@
status = "disabled";
};
- hsi2c_2: hsi2c@14e60000 {
+ hsi2c_2: i2c@14e60000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14e60000 0x1000>;
interrupts = <GIC_SPI 430 IRQ_TYPE_LEVEL_HIGH>;
@@ -1624,7 +1624,7 @@
status = "disabled";
};
- hsi2c_3: hsi2c@14e70000 {
+ hsi2c_3: i2c@14e70000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14e70000 0x1000>;
interrupts = <GIC_SPI 431 IRQ_TYPE_LEVEL_HIGH>;
@@ -1637,7 +1637,7 @@
status = "disabled";
};
- hsi2c_4: hsi2c@14ec0000 {
+ hsi2c_4: i2c@14ec0000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14ec0000 0x1000>;
interrupts = <GIC_SPI 424 IRQ_TYPE_LEVEL_HIGH>;
@@ -1650,7 +1650,7 @@
status = "disabled";
};
- hsi2c_5: hsi2c@14ed0000 {
+ hsi2c_5: i2c@14ed0000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14ed0000 0x1000>;
interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH>;
@@ -1663,7 +1663,7 @@
status = "disabled";
};
- hsi2c_6: hsi2c@14ee0000 {
+ hsi2c_6: i2c@14ee0000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14ee0000 0x1000>;
interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH>;
@@ -1676,7 +1676,7 @@
status = "disabled";
};
- hsi2c_7: hsi2c@14ef0000 {
+ hsi2c_7: i2c@14ef0000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14ef0000 0x1000>;
interrupts = <GIC_SPI 427 IRQ_TYPE_LEVEL_HIGH>;
@@ -1689,7 +1689,7 @@
status = "disabled";
};
- hsi2c_8: hsi2c@14d90000 {
+ hsi2c_8: i2c@14d90000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14d90000 0x1000>;
interrupts = <GIC_SPI 443 IRQ_TYPE_LEVEL_HIGH>;
@@ -1702,7 +1702,7 @@
status = "disabled";
};
- hsi2c_9: hsi2c@14da0000 {
+ hsi2c_9: i2c@14da0000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14da0000 0x1000>;
interrupts = <GIC_SPI 444 IRQ_TYPE_LEVEL_HIGH>;
@@ -1715,7 +1715,7 @@
status = "disabled";
};
- hsi2c_10: hsi2c@14de0000 {
+ hsi2c_10: i2c@14de0000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14de0000 0x1000>;
interrupts = <GIC_SPI 445 IRQ_TYPE_LEVEL_HIGH>;
@@ -1728,7 +1728,7 @@
status = "disabled";
};
- hsi2c_11: hsi2c@14df0000 {
+ hsi2c_11: i2c@14df0000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14df0000 0x1000>;
interrupts = <GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi b/arch/arm64/boot/dts/exynos/exynos7.dtsi
index c73a597ca66e..c3efbc8add38 100644
--- a/arch/arm64/boot/dts/exynos/exynos7.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi
@@ -359,7 +359,7 @@
interrupts = <GIC_SPI 384 IRQ_TYPE_LEVEL_HIGH>;
};
- hsi2c_0: hsi2c@13640000 {
+ hsi2c_0: i2c@13640000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x13640000 0x1000>;
interrupts = <GIC_SPI 441 IRQ_TYPE_LEVEL_HIGH>;
@@ -372,7 +372,7 @@
status = "disabled";
};
- hsi2c_1: hsi2c@13650000 {
+ hsi2c_1: i2c@13650000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x13650000 0x1000>;
interrupts = <GIC_SPI 442 IRQ_TYPE_LEVEL_HIGH>;
@@ -385,7 +385,7 @@
status = "disabled";
};
- hsi2c_2: hsi2c@14e60000 {
+ hsi2c_2: i2c@14e60000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14e60000 0x1000>;
interrupts = <GIC_SPI 459 IRQ_TYPE_LEVEL_HIGH>;
@@ -398,7 +398,7 @@
status = "disabled";
};
- hsi2c_3: hsi2c@14e70000 {
+ hsi2c_3: i2c@14e70000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14e70000 0x1000>;
interrupts = <GIC_SPI 460 IRQ_TYPE_LEVEL_HIGH>;
@@ -411,7 +411,7 @@
status = "disabled";
};
- hsi2c_4: hsi2c@13660000 {
+ hsi2c_4: i2c@13660000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x13660000 0x1000>;
interrupts = <GIC_SPI 443 IRQ_TYPE_LEVEL_HIGH>;
@@ -424,7 +424,7 @@
status = "disabled";
};
- hsi2c_5: hsi2c@13670000 {
+ hsi2c_5: i2c@13670000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x13670000 0x1000>;
interrupts = <GIC_SPI 444 IRQ_TYPE_LEVEL_HIGH>;
@@ -437,7 +437,7 @@
status = "disabled";
};
- hsi2c_6: hsi2c@14e00000 {
+ hsi2c_6: i2c@14e00000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14e00000 0x1000>;
interrupts = <GIC_SPI 461 IRQ_TYPE_LEVEL_HIGH>;
@@ -450,7 +450,7 @@
status = "disabled";
};
- hsi2c_7: hsi2c@13e10000 {
+ hsi2c_7: i2c@13e10000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x13e10000 0x1000>;
interrupts = <GIC_SPI 462 IRQ_TYPE_LEVEL_HIGH>;
@@ -463,7 +463,7 @@
status = "disabled";
};
- hsi2c_8: hsi2c@14e20000 {
+ hsi2c_8: i2c@14e20000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x14e20000 0x1000>;
interrupts = <GIC_SPI 463 IRQ_TYPE_LEVEL_HIGH>;
@@ -476,7 +476,7 @@
status = "disabled";
};
- hsi2c_9: hsi2c@13680000 {
+ hsi2c_9: i2c@13680000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x13680000 0x1000>;
interrupts = <GIC_SPI 445 IRQ_TYPE_LEVEL_HIGH>;
@@ -489,7 +489,7 @@
status = "disabled";
};
- hsi2c_10: hsi2c@13690000 {
+ hsi2c_10: i2c@13690000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x13690000 0x1000>;
interrupts = <GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>;
@@ -502,7 +502,7 @@
status = "disabled";
};
- hsi2c_11: hsi2c@136a0000 {
+ hsi2c_11: i2c@136a0000 {
compatible = "samsung,exynos7-hsi2c";
reg = <0x136a0000 0x1000>;
interrupts = <GIC_SPI 447 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
index ef46d7aa6e28..57518cb5e8c4 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
+++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
@@ -54,3 +54,7 @@
vcc-supply = <&ufs_0_fixed_vcc_reg>;
vcc-fixed-regulator;
};
+
+&usi_0 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
index 3e4727344b4a..0fab0aa4db3f 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
@@ -7,6 +7,7 @@
*/
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/soc/samsung,exynos-usi.h>
/ {
compatible = "samsung,exynosautov9";
@@ -256,16 +257,35 @@
reg = <0x17c20000 0x1000>;
};
- /* USI: UART */
- serial_0: uart@10300000 {
- compatible = "samsung,exynos850-uart";
- reg = <0x10300000 0x100>;
- interrupts = <GIC_SPI 345 IRQ_TYPE_LEVEL_HIGH>;
- pinctrl-names = "default";
- pinctrl-0 = <&uart0_bus_dual>;
+ syscon_peric0: syscon@10220000 {
+ compatible = "samsung,exynosautov9-sysreg", "syscon";
+ reg = <0x10220000 0x2000>;
+ };
+
+ usi_0: usi@103000c0 {
+ compatible = "samsung,exynos850-usi";
+ reg = <0x103000c0 0x20>;
+ samsung,sysreg = <&syscon_peric0 0x1000>;
+ samsung,mode = <USI_V2_UART>;
+ samsung,clkreq-on; /* needed for UART mode */
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
clocks = <&uart_clock>, <&uart_clock>;
- clock-names = "uart", "clk_uart_baud0";
+ clock-names = "pclk", "ipclk";
status = "disabled";
+
+ /* USI: UART */
+ serial_0: serial@10300000 {
+ compatible = "samsung,exynos850-uart";
+ reg = <0x10300000 0xc0>;
+ interrupts = <GIC_SPI 345 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_bus_dual>;
+ clocks = <&uart_clock>, <&uart_clock>;
+ clock-names = "uart", "clk_uart_baud0";
+ status = "disabled";
+ };
};
ufs_0_phy: ufs0-phy@17e04000 {
diff --git a/include/dt-bindings/pinctrl/samsung.h b/include/dt-bindings/pinctrl/samsung.h
index b1832506b923..950970634dfe 100644
--- a/include/dt-bindings/pinctrl/samsung.h
+++ b/include/dt-bindings/pinctrl/samsung.h
@@ -36,7 +36,10 @@
#define EXYNOS5260_PIN_DRV_LV4 2
#define EXYNOS5260_PIN_DRV_LV6 3
-/* Drive strengths for Exynos5410, Exynos542x and Exynos5800 */
+/*
+ * Drive strengths for Exynos5410, Exynos542x, Exynos5800 and Exynos850 (except
+ * GPIO_HSI block)
+ */
#define EXYNOS5420_PIN_DRV_LV1 0
#define EXYNOS5420_PIN_DRV_LV2 1
#define EXYNOS5420_PIN_DRV_LV3 2
@@ -56,6 +59,14 @@
#define EXYNOS5433_PIN_DRV_SLOW_SR5 0xc
#define EXYNOS5433_PIN_DRV_SLOW_SR6 0xf
+/* Drive strengths for Exynos850 GPIO_HSI block */
+#define EXYNOS850_HSI_PIN_DRV_LV1 0 /* 1x */
+#define EXYNOS850_HSI_PIN_DRV_LV1_5 1 /* 1.5x */
+#define EXYNOS850_HSI_PIN_DRV_LV2 2 /* 2x */
+#define EXYNOS850_HSI_PIN_DRV_LV2_5 3 /* 2.5x */
+#define EXYNOS850_HSI_PIN_DRV_LV3 4 /* 3x */
+#define EXYNOS850_HSI_PIN_DRV_LV4 5 /* 4x */
+
#define EXYNOS_PIN_FUNC_INPUT 0
#define EXYNOS_PIN_FUNC_OUTPUT 1
#define EXYNOS_PIN_FUNC_2 2
diff --git a/include/dt-bindings/soc/samsung,exynos-usi.h b/include/dt-bindings/soc/samsung,exynos-usi.h
new file mode 100644
index 000000000000..a01af169d249
--- /dev/null
+++ b/include/dt-bindings/soc/samsung,exynos-usi.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2021 Linaro Ltd.
+ * Author: Sam Protsenko <semen.protsenko@linaro.org>
+ *
+ * Device Tree bindings for Samsung Exynos USI (Universal Serial Interface).
+ */
+
+#ifndef __DT_BINDINGS_SAMSUNG_EXYNOS_USI_H
+#define __DT_BINDINGS_SAMSUNG_EXYNOS_USI_H
+
+#define USI_V2_NONE 0
+#define USI_V2_UART 1
+#define USI_V2_SPI 2
+#define USI_V2_I2C 3
+
+#endif /* __DT_BINDINGS_SAMSUNG_EXYNOS_USI_H */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.