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build/patch/kernel/archive/rockchip-5.16/01-linux-0001-rockchip-from-5.15.patch

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diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml
new file mode 100644
index 000000000000..72b286a1beba
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3399-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3399 Clock and Reset Unit
+
+maintainers:
+ - Xing Zheng <zhengxing@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+
+description: |
+ The RK3399 clock controller generates and supplies clock to various
+ controllers within the SoC and also implements a reset controller for SoC
+ peripherals.
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All available clocks are defined as
+ preprocessor macros in the dt-bindings/clock/rk3399-cru.h headers and can be
+ used in device tree sources. Similar macros exist for the reset sources in
+ these files.
+ There are several clocks that are generated outside the SoC. It is expected
+ that they are defined using standard clock bindings with following
+ clock-output-names:
+ - "xin24m" - crystal input - required,
+ - "xin32k" - rtc clock - optional,
+ - "clkin_gmac" - external GMAC clock - optional,
+ - "clkin_i2s" - external I2S clock - optional,
+ - "pclkin_cif" - external ISP clock - optional,
+ - "clk_usbphy0_480m" - output clock of the pll in the usbphy0
+ - "clk_usbphy1_480m" - output clock of the pll in the usbphy1
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3399-pmucru
+ - rockchip,rk3399-cru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ minItems: 1
+
+ assigned-clocks:
+ minItems: 1
+ maxItems: 64
+
+ assigned-clock-parents:
+ minItems: 1
+ maxItems: 64
+
+ assigned-clock-rates:
+ minItems: 1
+ maxItems: 64
+
+ rockchip,grf:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: >
+ phandle to the syscon managing the "general register files". It is used
+ for GRF muxes, if missing any muxes present in the GRF will not be
+ available.
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ pmucru: pmu-clock-controller@ff750000 {
+ compatible = "rockchip,rk3399-pmucru";
+ reg = <0xff750000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+ - |
+ cru: clock-controller@ff760000 {
+ compatible = "rockchip,rk3399-cru";
+ reg = <0xff760000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 3871c7fd83b0..aa5d7dca3432 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1240,7 +1240,6 @@ vpu: video-codec@ff650000 {
reg = <0x0 0xff650000 0x0 0x800>;
interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH 0>,
<GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH 0>;
- interrupt-names = "vepu", "vdpu";
clocks = <&cru ACLK_VCODEC>, <&cru HCLK_VCODEC>;
clock-names = "aclk", "hclk";
iommus = <&vpu_mmu>;
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Levin Du <djw@t-chip.com.cn>
Date: Fri, 9 Jul 2021 16:01:26 +0800
Subject: [PATCH] arm64: dts: rockchip: add support for Firefly ROC-RK3328-PC
ROC-RK3328-PC is the board inside the portable Firefly Station M1
Geek PC. As a redesign after the ROC-RK3328-CC, it uses TypeC as
power input and OTG port, embedded with eMMC 5.1 storage and a
SDIO WiFi/BT chip (RTL8723DS).
- Rockchip RK3328 SoC
- 2/4GB LPDDR3 RAM
- 16/32/64/128GB eMMC 5.1
- TF card slot
- USB 3.0 Port x 1, USB 2.0 Port x 1, TypeC Port x 1 (Power/OTG)
- HDMI
- Gigabit Ethernet
- WiFi: RTL8723DS
- Audio: RK3328
- Key: Power, Reset, Recovery
- LED: POWER, USER
- IR
Signed-off-by: Levin Du <djw@t-chip.com.cn>
Link: https://lore.kernel.org/r/20210709080126.17045-3-djw@t-chip.com.cn
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/Makefile | 1 +
.../arm64/boot/dts/rockchip/rk3328-roc-pc.dts | 110 ++++++++++++++++++
2 files changed, 111 insertions(+)
create mode 100644 arch/arm64/boot/dts/rockchip/rk3328-roc-pc.dts
diff --git a/arch/arm64/boot/dts/rockchip/rk3328-roc-pc.dts b/arch/arm64/boot/dts/rockchip/rk3328-roc-pc.dts
new file mode 100644
index 000000000000..e3e3984d01d4
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-pc.dts
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+// Copyright (c) 2021 T-Chip Intelligent Technology Co., Ltd
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+
+#include "rk3328-roc-cc.dts"
+
+/ {
+ model = "Firefly ROC-RK3328-PC";
+ compatible = "firefly,roc-rk3328-pc", "rockchip,rk3328";
+
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&saradc 0>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <1750000>;
+
+ /* This button is unpopulated out of the factory. */
+ button-recovery {
+ label = "Recovery";
+ linux,code = <KEY_VENDOR>;
+ press-threshold-microvolt = <10000>;
+ };
+ };
+
+ ir-receiver {
+ compatible = "gpio-ir-receiver";
+ gpios = <&gpio2 RK_PA2 GPIO_ACTIVE_LOW>;
+ linux,rc-map-name = "rc-khadas";
+ pinctrl-names = "default";
+ pinctrl-0 = <&ir_int>;
+ };
+
+ sdio_pwrseq: sdio-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wifi_en>, <&wifi_host_wake>;
+ reset-gpios = <&gpio3 RK_PB0 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&codec {
+ mute-gpios = <&grf_gpio 0 GPIO_ACTIVE_LOW>;
+};
+
+&gpu {
+ mali-supply = <&vdd_logic>;
+};
+
+&pinctrl {
+ ir {
+ ir_int: ir-int {
+ rockchip,pins = <2 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ sdmmcio {
+ sdio_per_pin: sdio-per-pin {
+ rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_down>;
+ };
+ };
+
+ wifi {
+ wifi_en: wifi-en {
+ rockchip,pins = <3 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ wifi_host_wake: wifi-host-wake {
+ rockchip,pins = <3 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none_4ma>;
+ };
+
+ bt_rst: bt-rst {
+ rockchip,pins = <1 RK_PD0 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ bt_en: bt-en {
+ rockchip,pins = <1 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&pmic_int_l {
+ rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
+};
+
+&rk805 {
+ interrupt-parent = <&gpio0>;
+ interrupts = <RK_PA2 IRQ_TYPE_LEVEL_LOW>;
+};
+
+&saradc {
+ vref-supply = <&vcc_18>;
+ status = "okay";
+};
+
+&usb20_host_drv {
+ rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
+};
+
+&vcc_host1_5v {
+ gpio = <&gpio0 RK_PA0 GPIO_ACTIVE_HIGH>;
+};
+
+&vcc_sdio {
+ gpios = <&gpio0 RK_PD3 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio_per_pin>;
+};
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Levin Du <djw@t-chip.com.cn>
Date: Mon, 28 Jun 2021 11:54:02 +0800
Subject: [PATCH] arm64: dts: rockchip: add support for Firefly
ROC-RK3399-PC-PLUS
ROC-RK3399-PC-PLUS is the board inside the portable Firefly Station P1 Geek
PC. As a redesign after the ROC-RK3399-PC, it uses DC-12V as power input
and spares a USB 3 host port. It is also equipped with a USB WiFi chip and
audio codec without the mezzanine board.
- Rockchip RK3399 SoC
- 4GB LPDDR4 RAM
- 16MB SPI-Flash
- eMMC slot
- TF card slot
- USB 3.0 Port x 1, USB 2.0 Port x 1, TypeC Port x 1
- HDMI
- Gigabit Ethernet
- WiFi: RTL8723DU
- Audio: ES8388
- Key: Recovery
- LED: WORK, DIY
- IR
Signed-off-by: Kongxin Deng <dkx@t-chip.com.cn>
Signed-off-by: Levin Du <djw@t-chip.com.cn>
Link: https://lore.kernel.org/r/20210628035402.16812-3-djw@t-chip.com.cn
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/Makefile | 1 +
.../boot/dts/rockchip/rk3399-roc-pc-plus.dts | 218 ++++++++++++++++++
2 files changed, 219 insertions(+)
create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts
new file mode 100644
index 000000000000..5a2661ae0131
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc-plus.dts
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2017 T-Chip Intelligent Technology Co., Ltd
+ */
+
+/dts-v1/;
+#include "rk3399-roc-pc.dtsi"
+
+/*
+ * Notice:
+ * 1. rk3399-roc-pc-plus is powered by dc_12v directly.
+ * 2. rk3399-roc-pc-plus has only vcc_bus_typec0 in schematic, which is coresponding
+ * to vcc_vbus_typec1 in rk3399-roc-pc.
+ * For simplicity, reserve the node name of vcc_vbus_typec1.
+ * 3. vcc5v0_host is actually 2 regulators (host0, 1) controlled by the same gpio.
+ */
+
+/delete-node/ &fusb1;
+/delete-node/ &hub_rst;
+/delete-node/ &mp8859;
+/delete-node/ &vcc_sys_en;
+/delete-node/ &vcc_vbus_typec0;
+/delete-node/ &yellow_led;
+
+/ {
+ model = "Firefly ROC-RK3399-PC-PLUS Board";
+ compatible = "firefly,roc-rk3399-pc-plus", "rockchip,rk3399";
+
+ dc_12v: dc-12v {
+ compatible = "regulator-fixed";
+ regulator-name = "dc_12v";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ };
+
+ es8388-sound {
+ compatible = "simple-audio-card";
+ pinctrl-names = "default";
+ pinctrl-0 = <&hp_det_pin>;
+ simple-audio-card,name = "rockchip,es8388-codec";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,mclk-fs = <256>;
+ simple-audio-card,widgets =
+ "Microphone", "Mic Jack",
+ "Headphone", "Headphones";
+ simple-audio-card,routing =
+ "LINPUT1", "Mic Jack",
+ "Headphone Amp INL", "LOUT2",
+ "Headphone Amp INR", "ROUT2",
+ "Headphones", "Headphone Amp OUTL",
+ "Headphones", "Headphone Amp OUTR";
+ simple-audio-card,hp-det-gpio = <&gpio2 RK_PA6 GPIO_ACTIVE_HIGH>;
+ simple-audio-card,aux-devs = <&headphones_amp>;
+ simple-audio-card,pin-switches = "Headphones";
+
+ simple-audio-card,codec {
+ sound-dai = <&es8388>;
+ };
+
+ simple-audio-card,cpu {
+ sound-dai = <&i2s1>;
+ };
+ };
+
+ gpio-fan {
+ #cooling-cells = <2>;
+ compatible = "gpio-fan";
+ gpio-fan,speed-map = <0 0 3000 1>;
+ gpios = <&gpio1 RK_PA1 GPIO_ACTIVE_HIGH>;
+ };
+
+ /delete-node/ gpio-keys;
+
+ /* not amplifier, used as switcher only */
+ headphones_amp: headphones-amp {
+ compatible = "simple-audio-amplifier";
+ pinctrl-names = "default";
+ pinctrl-0 = <&ear_ctl_pin>;
+ enable-gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_HIGH>;
+ sound-name-prefix = "Headphone Amp";
+ VCC-supply = <&vcca3v0_codec>;
+ };
+
+ ir-receiver {
+ linux,rc-map-name = "rc-khadas";
+ };
+
+ leds {
+ pinctrl-names = "default";
+ pinctrl-0 = <&work_led_pin>, <&diy_led_pin>;
+ };
+};
+
+&fusb0 {
+ vbus-supply = <&vcc_vbus_typec1>;
+};
+
+&i2c0 {
+ hym8563: hym8563@51 {
+ compatible = "haoyu,hym8563";
+ reg = <0x51>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <RK_PA5 IRQ_TYPE_EDGE_FALLING>;
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ clock-output-names = "xin32k";
+ pinctrl-names = "default";
+ pinctrl-0 = <&hym8563_int>;
+ };
+};
+
+&i2c1 {
+ es8388: es8388@11 {
+ compatible = "everest,es8388";
+ reg = <0x11>;
+ clock-names = "mclk";
+ clocks = <&cru SCLK_I2S_8CH_OUT>;
+ #sound-dai-cells = <0>;
+ };
+};
+
+/* <4 RK_PA0 1 &pcfg_pull_none> is used as i2s_8ch_mclk_pin */
+&i2s0_8ch_bus {
+ rockchip,pins =
+ <3 RK_PD0 1 &pcfg_pull_none>,
+ <3 RK_PD1 1 &pcfg_pull_none>,
+ <3 RK_PD2 1 &pcfg_pull_none>,
+ <3 RK_PD3 1 &pcfg_pull_none>,
+ <3 RK_PD4 1 &pcfg_pull_none>,
+ <3 RK_PD5 1 &pcfg_pull_none>,
+ <3 RK_PD6 1 &pcfg_pull_none>,
+ <3 RK_PD7 1 &pcfg_pull_none>;
+};
+
+&i2s1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2s_8ch_mclk_pin>, <&i2s1_2ch_bus>;
+ rockchip,playback-channels = <2>;
+ rockchip,capture-channels = <2>;
+ status = "okay";
+};
+
+&pinctrl {
+ es8388 {
+ ear_ctl_pin: ear-ctl-pin {
+ rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_output_high>;
+ };
+
+ hp_det_pin: hp-det-pin {
+ rockchip,pins = <2 RK_PA6 RK_FUNC_GPIO &pcfg_pull_down>;
+ };
+ };
+
+ hym8563 {
+ hym8563_int: hym8563-int {
+ rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ i2s1 {
+ i2s_8ch_mclk_pin: i2s-8ch-mclk-pin {
+ rockchip,pins = <4 RK_PA0 1 &pcfg_pull_none>;
+ };
+ };
+};
+
+&u2phy0 {
+ status = "okay";
+
+ u2phy0_otg: otg-port {
+ phy-supply = <&vcc_vbus_typec1>;
+ status = "okay";
+ };
+
+ u2phy0_host: host-port {
+ phy-supply = <&vcc5v0_host>;
+ status = "okay";
+ };
+};
+
+&u2phy1 {
+ status = "okay";
+
+ u2phy1_otg: otg-port {
+ phy-supply = <&vcc5v0_host>;
+ status = "okay";
+ };
+
+ u2phy1_host: host-port {
+ phy-supply = <&vcc5v0_host>;
+ status = "okay";
+ };
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
+ status = "okay";
+};
+
+&usbdrd_dwc3_0 {
+ dr_mode = "host";
+ status = "okay";
+};
+
+&vcc_sys {
+ /* vcc_sys is fixed, not controlled by any gpio */
+ /delete-property/ gpio;
+ /delete-property/ pinctrl-names;
+ /delete-property/ pinctrl-0;
+};
+
+&vcc5v0_host {
+ pinctrl-names = "default";
+ pinctrl-0 = <&vcc5v0_host_en>;
+};
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Dennis Gilmore <dgilmore@redhat.com>
Date: Wed, 14 Jul 2021 21:56:31 -0500
Subject: [PATCH] arm64: dts: rockchip: enable tsadc on helios64
Enable the tsadc thermal controller on the helios64
Signed-off-by: Dennis Gilmore <dgilmore@redhat.com>
Link: https://lore.kernel.org/r/20210715025635.70452-4-dgilmore@redhat.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
index b275b4790211..63c7681843da 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts
@@ -502,6 +502,14 @@ &tcphy1 {
status = "okay";
};
+&tsadc {
+ /* tshut mode 0:CRU 1:GPIO */
+ rockchip,hw-tshut-mode = <1>;
+ /* tshut polarity 0:LOW 1:HIGH */
+ rockchip,hw-tshut-polarity = <1>;
+ status = "okay";
+};
+
&u2phy1 {
status = "okay";
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alex Bee <knaerzche@gmail.com>
Date: Fri, 18 Jun 2021 20:12:53 +0200
Subject: [PATCH] arm64: dts: rockchip: Add RK3399 ROCK Pi 4A+ board
ROCK Pi 4A+ board is the successor of ROCK Pi 4A board.
Differences to the original version are
- has RK3399 OP1 SoC revision
- has eMMC (16 or 32 GB) soldered on board (no changes required,
since it is enabled in rk3399-rock-pi-4.dtsi)
- dev boards have SPI flash soldered, but as per manufacturer response,
this won't be the case for mass production boards
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20210618181256.27992-3-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/Makefile | 1 +
.../boot/dts/rockchip/rk3399-rock-pi-4a-plus.dts | 14 ++++++++++++++
2 files changed, 15 insertions(+)
create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a-plus.dts
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a-plus.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a-plus.dts
new file mode 100644
index 000000000000..281a04b2f5e9
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a-plus.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Akash Gajjar <Akash_Gajjar@mentor.com>
+ * Copyright (c) 2019 Pragnesh Patel <Pragnesh_Patel@mentor.com>
+ */
+
+/dts-v1/;
+#include "rk3399-rock-pi-4.dtsi"
+#include "rk3399-op1-opp.dtsi"
+
+/ {
+ model = "Radxa ROCK Pi 4A+";
+ compatible = "radxa,rockpi4a-plus", "radxa,rockpi4", "rockchip,rk3399";
+};
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alex Bee <knaerzche@gmail.com>
Date: Fri, 18 Jun 2021 20:12:54 +0200
Subject: [PATCH] arm64: dts: rockchip: Add RK3399 ROCK Pi 4B+ board
ROCK Pi 4B+ board is the successor of ROCK Pi 4B board.
Differences to the original version are
- has RK3399 OP1 SoC revision
- has eMMC (16 or 32 GB) soldered on board (no changes required,
since it is enabled in rk3399-rock-pi-4.dtsi)
- dev boards have SPI flash soldered, but as per manufacturer response,
this won't be the case for mass production boards
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20210618181256.27992-4-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/Makefile | 1 +
.../dts/rockchip/rk3399-rock-pi-4b-plus.dts | 47 +++++++++++++++++++
2 files changed, 48 insertions(+)
create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b-plus.dts
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b-plus.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b-plus.dts
new file mode 100644
index 000000000000..dfad13d2ab24
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b-plus.dts
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Akash Gajjar <Akash_Gajjar@mentor.com>
+ * Copyright (c) 2019 Pragnesh Patel <Pragnesh_Patel@mentor.com>
+ */
+
+/dts-v1/;
+#include "rk3399-rock-pi-4.dtsi"
+#include "rk3399-op1-opp.dtsi"
+
+/ {
+ model = "Radxa ROCK Pi 4B+";
+ compatible = "radxa,rockpi4b-plus", "radxa,rockpi4", "rockchip,rk3399";
+
+ aliases {
+ mmc2 = &sdio0;
+ };
+};
+
+&sdio0 {
+ status = "okay";
+
+ brcmf: wifi@1 {
+ compatible = "brcm,bcm4329-fmac";
+ reg = <1>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <RK_PA3 GPIO_ACTIVE_HIGH>;
+ interrupt-names = "host-wake";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wifi_host_wake_l>;
+ };
+};
+
+&uart0 {
+ status = "okay";
+
+ bluetooth {
+ compatible = "brcm,bcm43438-bt";
+ clocks = <&rk808 1>;
+ clock-names = "ext_clock";
+ device-wakeup-gpios = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
+ host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>;
+ shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&bt_host_wake_l &bt_wake_l &bt_enable_h>;
+ };
+};
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alex Bee <knaerzche@gmail.com>
Date: Fri, 18 Jun 2021 20:12:55 +0200
Subject: [PATCH] arm64: dts: rockchip: add ES8316 codec for ROCK Pi 4
ROCK Pi 4 boards have the codec connected to i2s0 and it is accessible
via i2c1 address 0x11.
Add an audio-graph-card for it.
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20210618181256.27992-5-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
.../boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 28 +++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
index b28888ea9262..b49072af4014 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
@@ -36,6 +36,12 @@ sdio_pwrseq: sdio-pwrseq {
reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
};
+ sound {
+ compatible = "audio-graph-card";
+ label = "Analog";
+ dais = <&i2s0_p0>;
+ };
+
vcc12v_dcin: dc-12v {
compatible = "regulator-fixed";
regulator-name = "vcc12v_dcin";
@@ -422,6 +428,20 @@ &i2c1 {
i2c-scl-rising-time-ns = <300>;
i2c-scl-falling-time-ns = <15>;
status = "okay";
+
+ es8316: codec@11 {
+ compatible = "everest,es8316";
+ reg = <0x11>;
+ clocks = <&cru SCLK_I2S_8CH_OUT>;
+ clock-names = "mclk";
+ #sound-dai-cells = <0>;
+
+ port {
+ es8316_p0_0: endpoint {
+ remote-endpoint = <&i2s0_p0_0>;
+ };
+ };
+ };
};
&i2c3 {
@@ -441,6 +461,14 @@ &i2s0 {
rockchip,capture-channels = <2>;
rockchip,playback-channels = <2>;
status = "okay";
+
+ i2s0_p0: port {
+ i2s0_p0_0: endpoint {
+ dai-format = "i2s";
+ mclk-fs = <256>;
+ remote-endpoint = <&es8316_p0_0>;
+ };
+ };
};
&i2s1 {
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alex Bee <knaerzche@gmail.com>
Date: Fri, 18 Jun 2021 20:12:56 +0200
Subject: [PATCH] arm64: dts: rockchip: add SPDIF node for ROCK Pi 4
Add a SPDIF audio-graph-card to ROCK Pi 4 device tree.
It's not enabled by default since all dma channels are used by
the (already) enabled i2s0/1/2 and the pin is muxed with GPIO4_C5
which might be in use already.
If enabled SPDIF_TX will be available at pin #15.
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20210618181256.27992-6-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
.../boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
index b49072af4014..98136c88fa49 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
@@ -42,6 +42,23 @@ sound {
dais = <&i2s0_p0>;
};
+ sound-dit {
+ compatible = "audio-graph-card";
+ label = "SPDIF";
+ dais = <&spdif_p0>;
+ };
+
+ spdif-dit {
+ compatible = "linux,spdif-dit";
+ #sound-dai-cells = <0>;
+
+ port {
+ dit_p0_0: endpoint {
+ remote-endpoint = <&spdif_p0_0>;
+ };
+ };
+ };
+
vcc12v_dcin: dc-12v {
compatible = "regulator-fixed";
regulator-name = "vcc12v_dcin";
@@ -631,6 +648,15 @@ &sdhci {
status = "okay";
};
+&spdif {
+
+ spdif_p0: port {
+ spdif_p0_0: endpoint {
+ remote-endpoint = <&dit_p0_0>;
+ };
+ };
+};
+
&tcphy0 {
status = "okay";
};
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Date: Thu, 22 Jul 2021 09:39:55 +0200
Subject: [PATCH] arm64: dts: rockchip: add csi-dphy to px30
Add the CSI dphy node to the core px30 devicetree for later use
with the rkisp.
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Link: https://lore.kernel.org/r/20210722073955.1192168-1-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/px30.dtsi | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
index 248ebb61aa79..6e53a4cc75e6 100644
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
@@ -864,6 +864,19 @@ dsi_dphy: phy@ff2e0000 {
status = "disabled";
};
+ csi_dphy: phy@ff2f0000 {
+ compatible = "rockchip,px30-csi-dphy";
+ reg = <0x0 0xff2f0000 0x0 0x4000>;
+ clocks = <&cru PCLK_MIPICSIPHY>;
+ clock-names = "pclk";
+ #phy-cells = <0>;
+ power-domains = <&power PX30_PD_VI>;
+ resets = <&cru SRST_MIPICSIPHY_P>;
+ reset-names = "apb";
+ rockchip,grf = <&grf>;
+ status = "disabled";
+ };
+
usb20_otg: usb@ff300000 {
compatible = "rockchip,px30-usb", "rockchip,rk3066-usb",
"snps,dwc2";
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Date: Wed, 10 Feb 2021 12:10:18 +0100
Subject: [PATCH] arm64: dts: rockchip: add #phy-cells to mipi-dsi1 on rk3399
The dsi controller includes access to the dphy which might be used
not only for dsi output but also for csi input on dsi1, so add the
necessary #phy-cells to allow it to be used as phy.
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Tested-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Acked-by: Helen Koike <helen.koike@collabora.com>
Link: https://lore.kernel.org/r/20210210111020.2476369-5-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/rk3399.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index aa5d7dca3432..8d68775365a3 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1870,6 +1870,7 @@ mipi_dsi1: mipi@ff968000 {
rockchip,grf = <&grf>;
#address-cells = <1>;
#size-cells = <0>;
+ #phy-cells = <0>;
status = "disabled";
ports {
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Date: Wed, 10 Feb 2021 12:10:19 +0100
Subject: [PATCH] arm64: dts: rockchip: add cif clk-control pinctrl for rk3399
This enables variant a of the clkout signal for camera applications
and also the cifclkin pinctrl setting.
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Tested-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Acked-by: Helen Koike <helen.koike@collabora.com>
Link: https://lore.kernel.org/r/20210210111020.2476369-6-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/rk3399.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 8d68775365a3..493042bc20c0 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -2107,6 +2107,18 @@ clk_32k: clk-32k {
};
};
+ cif {
+ cif_clkin: cif-clkin {
+ rockchip,pins =
+ <2 RK_PB2 3 &pcfg_pull_none>;
+ };
+
+ cif_clkouta: cif-clkouta {
+ rockchip,pins =
+ <2 RK_PB3 3 &pcfg_pull_none>;
+ };
+ };
+
edp {
edp_hpd: edp-hpd {
rockchip,pins =
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Chris Morgan <macromorgan@hotmail.com>
Date: Thu, 12 Aug 2021 21:45:43 +0800
Subject: [PATCH] arm64: dts: rockchip: Add SFC to PX30
Add a devicetree entry for the Rockchip SFC for the PX30 SOC.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20210812134546.31340-4-jon.lin@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/px30.dtsi | 38 ++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
index 185bcc5c16ac..64f643145688 100644
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
@@ -987,6 +987,18 @@ emmc: mmc@ff390000 {
status = "disabled";
};
+ sfc: spi@ff3a0000 {
+ compatible = "rockchip,sfc";
+ reg = <0x0 0xff3a0000 0x0 0x4000>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SFC>, <&cru HCLK_SFC>;
+ clock-names = "clk_sfc", "hclk_sfc";
+ pinctrl-0 = <&sfc_clk &sfc_cs0 &sfc_bus4>;
+ pinctrl-names = "default";
+ power-domains = <&power PX30_PD_MMC_NAND>;
+ status = "disabled";
+ };
+
nfc: nand-controller@ff3b0000 {
compatible = "rockchip,px30-nfc";
reg = <0x0 0xff3b0000 0x0 0x4000>;
@@ -2008,6 +2020,32 @@ flash_bus8: flash-bus8 {
};
};
+ sfc {
+ sfc_bus4: sfc-bus4 {
+ rockchip,pins =
+ <1 RK_PA0 3 &pcfg_pull_none>,
+ <1 RK_PA1 3 &pcfg_pull_none>,
+ <1 RK_PA2 3 &pcfg_pull_none>,
+ <1 RK_PA3 3 &pcfg_pull_none>;
+ };
+
+ sfc_bus2: sfc-bus2 {
+ rockchip,pins =
+ <1 RK_PA0 3 &pcfg_pull_none>,
+ <1 RK_PA1 3 &pcfg_pull_none>;
+ };
+
+ sfc_cs0: sfc-cs0 {
+ rockchip,pins =
+ <1 RK_PA4 3 &pcfg_pull_none>;
+ };
+
+ sfc_clk: sfc-clk {
+ rockchip,pins =
+ <1 RK_PB1 3 &pcfg_pull_none>;
+ };
+ };
+
lcdc {
lcdc_rgb_dclk_pin: lcdc-rgb-dclk-pin {
rockchip,pins =
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Chris Morgan <macromorgan@hotmail.com>
Date: Thu, 12 Aug 2021 21:46:38 +0800
Subject: [PATCH] arm64: dts: rockchip: Add SFC to RK3308
Add a devicetree entry for the Rockchip SFC for the RK3308 SOC.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20210812134639.31586-1-jon.lin@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
arch/arm64/boot/dts/rockchip/rk3308.dtsi | 37 ++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index a185901aba9a..ce6f4a28d169 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -731,6 +731,17 @@ gmac: ethernet@ff4e0000 {
status = "disabled";
};
+ sfc: spi@ff4c0000 {
+ compatible = "rockchip,sfc";
+ reg = <0x0 0xff4c0000 0x0 0x4000>;
+ interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SFC>, <&cru HCLK_SFC>;
+ clock-names = "clk_sfc", "hclk_sfc";
+ pinctrl-0 = <&sfc_clk &sfc_cs0 &sfc_bus4>;
+ pinctrl-names = "default";
+ status = "disabled";
+ };
+
cru: clock-controller@ff500000 {
compatible = "rockchip,rk3308-cru";
reg = <0x0 0xff500000 0x0 0x1000>;
@@ -1004,6 +1015,32 @@ flash_bus8: flash-bus8 {
};
};
+ sfc {
+ sfc_bus4: sfc-bus4 {
+ rockchip,pins =
+ <3 RK_PA0 3 &pcfg_pull_none>,
+ <3 RK_PA1 3 &pcfg_pull_none>,
+ <3 RK_PA2 3 &pcfg_pull_none>,
+ <3 RK_PA3 3 &pcfg_pull_none>;
+ };
+
+ sfc_bus2: sfc-bus2 {
+ rockchip,pins =
+ <3 RK_PA0 3 &pcfg_pull_none>,
+ <3 RK_PA1 3 &pcfg_pull_none>;
+ };
+
+ sfc_cs0: sfc-cs0 {
+ rockchip,pins =
+ <3 RK_PA4 3 &pcfg_pull_none>;
+ };
+
+ sfc_clk: sfc-clk {
+ rockchip,pins =
+ <3 RK_PA5 3 &pcfg_pull_none>;
+ };
+ };
+
gmac {
rmii_pins: rmii-pins {
rockchip,pins =
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Chris Morgan <macromorgan@hotmail.com>
Date: Thu, 12 Aug 2021 21:45:41 +0800
Subject: [PATCH] spi: rockchip-sfc: Bindings for Rockchip serial flash
controller
Add bindings for the Rockchip serial flash controller. New device
specific parameter of rockchip,sfc-no-dma included in documentation.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20210812134546.31340-2-jon.lin@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---
.../devicetree/bindings/spi/rockchip-sfc.yaml | 91 +++++++++++++++++++
1 file changed, 91 insertions(+)
create mode 100644 Documentation/devicetree/bindings/spi/rockchip-sfc.yaml
diff --git a/Documentation/devicetree/bindings/spi/rockchip-sfc.yaml b/Documentation/devicetree/bindings/spi/rockchip-sfc.yaml
new file mode 100644
index 000000000000..339fb39529f3
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/rockchip-sfc.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/rockchip-sfc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip Serial Flash Controller (SFC)
+
+maintainers:
+ - Heiko Stuebner <heiko@sntech.de>
+ - Chris Morgan <macromorgan@hotmail.com>
+
+allOf:
+ - $ref: spi-controller.yaml#
+
+properties:
+ compatible:
+ const: rockchip,sfc
+ description:
+ The rockchip sfc controller is a standalone IP with version register,
+ and the driver can handle all the feature difference inside the IP
+ depending on the version register.
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+
+ clock-names:
+ items:
+ - const: clk_sfc
+ - const: hclk_sfc
+
+ power-domains:
+ maxItems: 1
+
+ rockchip,sfc-no-dma:
+ description: Disable DMA and utilize FIFO mode only
+ type: boolean
+
+patternProperties:
+ "^flash@[0-3]$":
+ type: object
+ properties:
+ reg:
+ minimum: 0
+ maximum: 3
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/px30-cru.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/px30-power.h>
+
+ sfc: spi@ff3a0000 {
+ compatible = "rockchip,sfc";
+ reg = <0xff3a0000 0x4000>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SFC>, <&cru HCLK_SFC>;
+ clock-names = "clk_sfc", "hclk_sfc";
+ pinctrl-0 = <&sfc_clk &sfc_cs &sfc_bus2>;
+ pinctrl-names = "default";
+ power-domains = <&power PX30_PD_MMC_NAND>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <108000000>;
+ spi-rx-bus-width = <2>;
+ spi-tx-bus-width = <2>;
+ };
+ };
+
+...
diff --git a/drivers/spi/spi-rockchip-sfc.c b/drivers/spi/spi-rockchip-sfc.c
new file mode 100644
index 000000000000..7c4d47fe80c2
--- /dev/null
+++ b/drivers/spi/spi-rockchip-sfc.c
@@ -0,0 +1,694 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Rockchip Serial Flash Controller Driver
+ *
+ * Copyright (c) 2017-2021, Rockchip Inc.
+ * Author: Shawn Lin <shawn.lin@rock-chips.com>
+ * Chris Morgan <macroalpha82@gmail.com>
+ * Jon Lin <Jon.lin@rock-chips.com>
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/dma-mapping.h>
+#include <linux/iopoll.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/spi/spi-mem.h>
+
+/* System control */
+#define SFC_CTRL 0x0
+#define SFC_CTRL_PHASE_SEL_NEGETIVE BIT(1)
+#define SFC_CTRL_CMD_BITS_SHIFT 8
+#define SFC_CTRL_ADDR_BITS_SHIFT 10
+#define SFC_CTRL_DATA_BITS_SHIFT 12
+
+/* Interrupt mask */
+#define SFC_IMR 0x4
+#define SFC_IMR_RX_FULL BIT(0)
+#define SFC_IMR_RX_UFLOW BIT(1)
+#define SFC_IMR_TX_OFLOW BIT(2)
+#define SFC_IMR_TX_EMPTY BIT(3)
+#define SFC_IMR_TRAN_FINISH BIT(4)
+#define SFC_IMR_BUS_ERR BIT(5)
+#define SFC_IMR_NSPI_ERR BIT(6)
+#define SFC_IMR_DMA BIT(7)
+
+/* Interrupt clear */
+#define SFC_ICLR 0x8
+#define SFC_ICLR_RX_FULL BIT(0)
+#define SFC_ICLR_RX_UFLOW BIT(1)
+#define SFC_ICLR_TX_OFLOW BIT(2)
+#define SFC_ICLR_TX_EMPTY BIT(3)
+#define SFC_ICLR_TRAN_FINISH BIT(4)
+#define SFC_ICLR_BUS_ERR BIT(5)
+#define SFC_ICLR_NSPI_ERR BIT(6)
+#define SFC_ICLR_DMA BIT(7)
+
+/* FIFO threshold level */
+#define SFC_FTLR 0xc
+#define SFC_FTLR_TX_SHIFT 0
+#define SFC_FTLR_TX_MASK 0x1f
+#define SFC_FTLR_RX_SHIFT 8
+#define SFC_FTLR_RX_MASK 0x1f
+
+/* Reset FSM and FIFO */
+#define SFC_RCVR 0x10
+#define SFC_RCVR_RESET BIT(0)
+
+/* Enhanced mode */
+#define SFC_AX 0x14
+
+/* Address Bit number */
+#define SFC_ABIT 0x18
+
+/* Interrupt status */
+#define SFC_ISR 0x1c
+#define SFC_ISR_RX_FULL_SHIFT BIT(0)
+#define SFC_ISR_RX_UFLOW_SHIFT BIT(1)
+#define SFC_ISR_TX_OFLOW_SHIFT BIT(2)
+#define SFC_ISR_TX_EMPTY_SHIFT BIT(3)
+#define SFC_ISR_TX_FINISH_SHIFT BIT(4)
+#define SFC_ISR_BUS_ERR_SHIFT BIT(5)
+#define SFC_ISR_NSPI_ERR_SHIFT BIT(6)
+#define SFC_ISR_DMA_SHIFT BIT(7)
+
+/* FIFO status */
+#define SFC_FSR 0x20
+#define SFC_FSR_TX_IS_FULL BIT(0)
+#define SFC_FSR_TX_IS_EMPTY BIT(1)
+#define SFC_FSR_RX_IS_EMPTY BIT(2)
+#define SFC_FSR_RX_IS_FULL BIT(3)
+#define SFC_FSR_TXLV_MASK GENMASK(12, 8)
+#define SFC_FSR_TXLV_SHIFT 8
+#define SFC_FSR_RXLV_MASK GENMASK(20, 16)
+#define SFC_FSR_RXLV_SHIFT 16
+
+/* FSM status */
+#define SFC_SR 0x24
+#define SFC_SR_IS_IDLE 0x0
+#define SFC_SR_IS_BUSY 0x1
+
+/* Raw interrupt status */
+#define SFC_RISR 0x28
+#define SFC_RISR_RX_FULL BIT(0)
+#define SFC_RISR_RX_UNDERFLOW BIT(1)
+#define SFC_RISR_TX_OVERFLOW BIT(2)
+#define SFC_RISR_TX_EMPTY BIT(3)
+#define SFC_RISR_TRAN_FINISH BIT(4)
+#define SFC_RISR_BUS_ERR BIT(5)
+#define SFC_RISR_NSPI_ERR BIT(6)
+#define SFC_RISR_DMA BIT(7)
+
+/* Version */
+#define SFC_VER 0x2C
+#define SFC_VER_3 0x3
+#define SFC_VER_4 0x4
+#define SFC_VER_5 0x5
+
+/* Delay line controller resiter */
+#define SFC_DLL_CTRL0 0x3C
+#define SFC_DLL_CTRL0_SCLK_SMP_DLL BIT(15)
+#define SFC_DLL_CTRL0_DLL_MAX_VER4 0xFFU
+#define SFC_DLL_CTRL0_DLL_MAX_VER5 0x1FFU
+
+/* Master trigger */
+#define SFC_DMA_TRIGGER 0x80
+#define SFC_DMA_TRIGGER_START 1
+
+/* Src or Dst addr for master */
+#define SFC_DMA_ADDR 0x84
+
+/* Length control register extension 32GB */
+#define SFC_LEN_CTRL 0x88
+#define SFC_LEN_CTRL_TRB_SEL 1
+#define SFC_LEN_EXT 0x8C
+
+/* Command */
+#define SFC_CMD 0x100
+#define SFC_CMD_IDX_SHIFT 0
+#define SFC_CMD_DUMMY_SHIFT 8
+#define SFC_CMD_DIR_SHIFT 12
+#define SFC_CMD_DIR_RD 0
+#define SFC_CMD_DIR_WR 1
+#define SFC_CMD_ADDR_SHIFT 14
+#define SFC_CMD_ADDR_0BITS 0
+#define SFC_CMD_ADDR_24BITS 1
+#define SFC_CMD_ADDR_32BITS 2
+#define SFC_CMD_ADDR_XBITS 3
+#define SFC_CMD_TRAN_BYTES_SHIFT 16
+#define SFC_CMD_CS_SHIFT 30
+
+/* Address */
+#define SFC_ADDR 0x104
+
+/* Data */
+#define SFC_DATA 0x108
+
+/* The controller and documentation reports that it supports up to 4 CS
+ * devices (0-3), however I have only been able to test a single CS (CS 0)
+ * due to the configuration of my device.
+ */
+#define SFC_MAX_CHIPSELECT_NUM 4
+
+/* The SFC can transfer max 16KB - 1 at one time
+ * we set it to 15.5KB here for alignment.
+ */
+#define SFC_MAX_IOSIZE_VER3 (512 * 31)
+
+/* DMA is only enabled for large data transmission */
+#define SFC_DMA_TRANS_THRETHOLD (0x40)
+
+/* Maximum clock values from datasheet suggest keeping clock value under
+ * 150MHz. No minimum or average value is suggested.
+ */
+#define SFC_MAX_SPEED (150 * 1000 * 1000)
+
+struct rockchip_sfc {
+ struct device *dev;
+ void __iomem *regbase;
+ struct clk *hclk;
+ struct clk *clk;
+ u32 frequency;
+ /* virtual mapped addr for dma_buffer */
+ void *buffer;
+ dma_addr_t dma_buffer;
+ struct completion cp;
+ bool use_dma;
+ u32 max_iosize;
+ u16 version;
+};
+
+static int rockchip_sfc_reset(struct rockchip_sfc *sfc)
+{
+ int err;
+ u32 status;
+
+ writel_relaxed(SFC_RCVR_RESET, sfc->regbase + SFC_RCVR);
+
+ err = readl_poll_timeout(sfc->regbase + SFC_RCVR, status,
+ !(status & SFC_RCVR_RESET), 20,
+ jiffies_to_usecs(HZ));
+ if (err)
+ dev_err(sfc->dev, "SFC reset never finished\n");
+
+ /* Still need to clear the masked interrupt from RISR */
+ writel_relaxed(0xFFFFFFFF, sfc->regbase + SFC_ICLR);
+
+ dev_dbg(sfc->dev, "reset\n");
+
+ return err;
+}
+
+static u16 rockchip_sfc_get_version(struct rockchip_sfc *sfc)
+{
+ return (u16)(readl(sfc->regbase + SFC_VER) & 0xffff);
+}
+
+static u32 rockchip_sfc_get_max_iosize(struct rockchip_sfc *sfc)
+{
+ return SFC_MAX_IOSIZE_VER3;
+}
+
+static void rockchip_sfc_irq_unmask(struct rockchip_sfc *sfc, u32 mask)
+{
+ u32 reg;
+
+ /* Enable transfer complete interrupt */
+ reg = readl(sfc->regbase + SFC_IMR);
+ reg &= ~mask;
+ writel(reg, sfc->regbase + SFC_IMR);
+}
+
+static void rockchip_sfc_irq_mask(struct rockchip_sfc *sfc, u32 mask)
+{
+ u32 reg;
+
+ /* Disable transfer finish interrupt */
+ reg = readl(sfc->regbase + SFC_IMR);
+ reg |= mask;
+ writel(reg, sfc->regbase + SFC_IMR);
+}
+
+static int rockchip_sfc_init(struct rockchip_sfc *sfc)
+{
+ writel(0, sfc->regbase + SFC_CTRL);
+ writel(0xFFFFFFFF, sfc->regbase + SFC_ICLR);
+ rockchip_sfc_irq_mask(sfc, 0xFFFFFFFF);
+ if (rockchip_sfc_get_version(sfc) >= SFC_VER_4)
+ writel(SFC_LEN_CTRL_TRB_SEL, sfc->regbase + SFC_LEN_CTRL);
+
+ return 0;
+}
+
+static int rockchip_sfc_wait_txfifo_ready(struct rockchip_sfc *sfc, u32 timeout_us)
+{
+ int ret = 0;
+ u32 status;
+
+ ret = readl_poll_timeout(sfc->regbase + SFC_FSR, status,
+ status & SFC_FSR_TXLV_MASK, 0,
+ timeout_us);
+ if (ret) {
+ dev_dbg(sfc->dev, "sfc wait tx fifo timeout\n");
+
+ ret = -ETIMEDOUT;
+ }
+
+ return (status & SFC_FSR_TXLV_MASK) >> SFC_FSR_TXLV_SHIFT;
+}
+
+static int rockchip_sfc_wait_rxfifo_ready(struct rockchip_sfc *sfc, u32 timeout_us)
+{
+ int ret = 0;
+ u32 status;
+
+ ret = readl_poll_timeout(sfc->regbase + SFC_FSR, status,
+ status & SFC_FSR_RXLV_MASK, 0,
+ timeout_us);
+ if (ret) {
+ dev_dbg(sfc->dev, "sfc wait rx fifo timeout\n");
+
+ ret = -ETIMEDOUT;
+ }
+
+ return (status & SFC_FSR_RXLV_MASK) >> SFC_FSR_RXLV_SHIFT;
+}
+
+static void rockchip_sfc_adjust_op_work(struct spi_mem_op *op)
+{
+ if (unlikely(op->dummy.nbytes && !op->addr.nbytes)) {
+ /*
+ * SFC not support output DUMMY cycles right after CMD cycles, so
+ * treat it as ADDR cycles.
+ */
+ op->addr.nbytes = op->dummy.nbytes;
+ op->addr.buswidth = op->dummy.buswidth;
+ op->addr.val = 0xFFFFFFFFF;
+
+ op->dummy.nbytes = 0;
+ }
+}
+
+static int rockchip_sfc_xfer_setup(struct rockchip_sfc *sfc,
+ struct spi_mem *mem,
+ const struct spi_mem_op *op,
+ u32 len)
+{
+ u32 ctrl = 0, cmd = 0;
+
+ /* set CMD */
+ cmd = op->cmd.opcode;
+ ctrl |= ((op->cmd.buswidth >> 1) << SFC_CTRL_CMD_BITS_SHIFT);
+
+ /* set ADDR */
+ if (op->addr.nbytes) {
+ if (op->addr.nbytes == 4) {
+ cmd |= SFC_CMD_ADDR_32BITS << SFC_CMD_ADDR_SHIFT;
+ } else if (op->addr.nbytes == 3) {
+ cmd |= SFC_CMD_ADDR_24BITS << SFC_CMD_ADDR_SHIFT;
+ } else {
+ cmd |= SFC_CMD_ADDR_XBITS << SFC_CMD_ADDR_SHIFT;
+ writel(op->addr.nbytes * 8 - 1, sfc->regbase + SFC_ABIT);
+ }
+
+ ctrl |= ((op->addr.buswidth >> 1) << SFC_CTRL_ADDR_BITS_SHIFT);
+ }
+
+ /* set DUMMY */
+ if (op->dummy.nbytes) {
+ if (op->dummy.buswidth == 4)
+ cmd |= op->dummy.nbytes * 2 << SFC_CMD_DUMMY_SHIFT;
+ else if (op->dummy.buswidth == 2)
+ cmd |= op->dummy.nbytes * 4 << SFC_CMD_DUMMY_SHIFT;
+ else
+ cmd |= op->dummy.nbytes * 8 << SFC_CMD_DUMMY_SHIFT;
+ }
+
+ /* set DATA */
+ if (sfc->version >= SFC_VER_4) /* Clear it if no data to transfer */
+ writel(len, sfc->regbase + SFC_LEN_EXT);
+ else
+ cmd |= len << SFC_CMD_TRAN_BYTES_SHIFT;
+ if (len) {
+ if (op->data.dir == SPI_MEM_DATA_OUT)
+ cmd |= SFC_CMD_DIR_WR << SFC_CMD_DIR_SHIFT;
+
+ ctrl |= ((op->data.buswidth >> 1) << SFC_CTRL_DATA_BITS_SHIFT);
+ }
+ if (!len && op->addr.nbytes)
+ cmd |= SFC_CMD_DIR_WR << SFC_CMD_DIR_SHIFT;
+
+ /* set the Controller */
+ ctrl |= SFC_CTRL_PHASE_SEL_NEGETIVE;
+ cmd |= mem->spi->chip_select << SFC_CMD_CS_SHIFT;
+
+ dev_dbg(sfc->dev, "sfc addr.nbytes=%x(x%d) dummy.nbytes=%x(x%d)\n",
+ op->addr.nbytes, op->addr.buswidth,
+ op->dummy.nbytes, op->dummy.buswidth);
+ dev_dbg(sfc->dev, "sfc ctrl=%x cmd=%x addr=%llx len=%x\n",
+ ctrl, cmd, op->addr.val, len);
+
+ writel(ctrl, sfc->regbase + SFC_CTRL);
+ writel(cmd, sfc->regbase + SFC_CMD);
+ if (op->addr.nbytes)
+ writel(op->addr.val, sfc->regbase + SFC_ADDR);
+
+ return 0;
+}
+
+static int rockchip_sfc_write_fifo(struct rockchip_sfc *sfc, const u8 *buf, int len)
+{
+ u8 bytes = len & 0x3;
+ u32 dwords;
+ int tx_level;
+ u32 write_words;
+ u32 tmp = 0;
+
+ dwords = len >> 2;
+ while (dwords) {
+ tx_level = rockchip_sfc_wait_txfifo_ready(sfc, 1000);
+ if (tx_level < 0)
+ return tx_level;
+ write_words = min_t(u32, tx_level, dwords);
+ iowrite32_rep(sfc->regbase + SFC_DATA, buf, write_words);
+ buf += write_words << 2;
+ dwords -= write_words;
+ }
+
+ /* write the rest non word aligned bytes */
+ if (bytes) {
+ tx_level = rockchip_sfc_wait_txfifo_ready(sfc, 1000);
+ if (tx_level < 0)
+ return tx_level;
+ memcpy(&tmp, buf, bytes);
+ writel(tmp, sfc->regbase + SFC_DATA);
+ }
+
+ return len;
+}
+
+static int rockchip_sfc_read_fifo(struct rockchip_sfc *sfc, u8 *buf, int len)
+{
+ u8 bytes = len & 0x3;
+ u32 dwords;
+ u8 read_words;
+ int rx_level;
+ int tmp;
+
+ /* word aligned access only */
+ dwords = len >> 2;
+ while (dwords) {
+ rx_level = rockchip_sfc_wait_rxfifo_ready(sfc, 1000);
+ if (rx_level < 0)
+ return rx_level;
+ read_words = min_t(u32, rx_level, dwords);
+ ioread32_rep(sfc->regbase + SFC_DATA, buf, read_words);
+ buf += read_words << 2;
+ dwords -= read_words;
+ }
+
+ /* read the rest non word aligned bytes */
+ if (bytes) {
+ rx_level = rockchip_sfc_wait_rxfifo_ready(sfc, 1000);
+ if (rx_level < 0)
+ return rx_level;
+ tmp = readl(sfc->regbase + SFC_DATA);
+ memcpy(buf, &tmp, bytes);
+ }
+
+ return len;
+}
+
+static int rockchip_sfc_fifo_transfer_dma(struct rockchip_sfc *sfc, dma_addr_t dma_buf, size_t len)
+{
+ writel(0xFFFFFFFF, sfc->regbase + SFC_ICLR);
+ writel((u32)dma_buf, sfc->regbase + SFC_DMA_ADDR);
+ writel(SFC_DMA_TRIGGER_START, sfc->regbase + SFC_DMA_TRIGGER);
+
+ return len;
+}
+
+static int rockchip_sfc_xfer_data_poll(struct rockchip_sfc *sfc,
+ const struct spi_mem_op *op, u32 len)
+{
+ dev_dbg(sfc->dev, "sfc xfer_poll len=%x\n", len);
+
+ if (op->data.dir == SPI_MEM_DATA_OUT)
+ return rockchip_sfc_write_fifo(sfc, op->data.buf.out, len);
+ else
+ return rockchip_sfc_read_fifo(sfc, op->data.buf.in, len);
+}
+
+static int rockchip_sfc_xfer_data_dma(struct rockchip_sfc *sfc,
+ const struct spi_mem_op *op, u32 len)
+{
+ int ret;
+
+ dev_dbg(sfc->dev, "sfc xfer_dma len=%x\n", len);
+
+ if (op->data.dir == SPI_MEM_DATA_OUT)
+ memcpy_toio(sfc->buffer, op->data.buf.out, len);
+
+ ret = rockchip_sfc_fifo_transfer_dma(sfc, sfc->dma_buffer, len);
+ if (!wait_for_completion_timeout(&sfc->cp, msecs_to_jiffies(2000))) {
+ dev_err(sfc->dev, "DMA wait for transfer finish timeout\n");
+ ret = -ETIMEDOUT;
+ }
+ rockchip_sfc_irq_mask(sfc, SFC_IMR_DMA);
+ if (op->data.dir == SPI_MEM_DATA_IN)
+ memcpy_fromio(op->data.buf.in, sfc->buffer, len);
+
+ return ret;
+}
+
+static int rockchip_sfc_xfer_done(struct rockchip_sfc *sfc, u32 timeout_us)
+{
+ int ret = 0;
+ u32 status;
+
+ ret = readl_poll_timeout(sfc->regbase + SFC_SR, status,
+ !(status & SFC_SR_IS_BUSY),
+ 20, timeout_us);
+ if (ret) {
+ dev_err(sfc->dev, "wait sfc idle timeout\n");
+ rockchip_sfc_reset(sfc);
+
+ ret = -EIO;
+ }
+
+ return ret;
+}
+
+static int rockchip_sfc_exec_mem_op(struct spi_mem *mem, const struct spi_mem_op *op)
+{
+ struct rockchip_sfc *sfc = spi_master_get_devdata(mem->spi->master);
+ u32 len = op->data.nbytes;
+ int ret;
+
+ if (unlikely(mem->spi->max_speed_hz != sfc->frequency)) {
+ ret = clk_set_rate(sfc->clk, mem->spi->max_speed_hz);
+ if (ret)
+ return ret;
+ sfc->frequency = mem->spi->max_speed_hz;
+ dev_dbg(sfc->dev, "set_freq=%dHz real_freq=%ldHz\n",
+ sfc->frequency, clk_get_rate(sfc->clk));
+ }
+
+ rockchip_sfc_adjust_op_work((struct spi_mem_op *)op);
+ rockchip_sfc_xfer_setup(sfc, mem, op, len);
+ if (len) {
+ if (likely(sfc->use_dma) && len >= SFC_DMA_TRANS_THRETHOLD) {
+ init_completion(&sfc->cp);
+ rockchip_sfc_irq_unmask(sfc, SFC_IMR_DMA);
+ ret = rockchip_sfc_xfer_data_dma(sfc, op, len);
+ } else {
+ ret = rockchip_sfc_xfer_data_poll(sfc, op, len);
+ }
+
+ if (ret != len) {
+ dev_err(sfc->dev, "xfer data failed ret %d dir %d\n", ret, op->data.dir);
+
+ return -EIO;
+ }
+ }
+
+ return rockchip_sfc_xfer_done(sfc, 100000);
+}
+
+static int rockchip_sfc_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op)
+{
+ struct rockchip_sfc *sfc = spi_master_get_devdata(mem->spi->master);
+
+ op->data.nbytes = min(op->data.nbytes, sfc->max_iosize);
+
+ return 0;
+}
+
+static const struct spi_controller_mem_ops rockchip_sfc_mem_ops = {
+ .exec_op = rockchip_sfc_exec_mem_op,
+ .adjust_op_size = rockchip_sfc_adjust_op_size,
+};
+
+static irqreturn_t rockchip_sfc_irq_handler(int irq, void *dev_id)
+{
+ struct rockchip_sfc *sfc = dev_id;
+ u32 reg;
+
+ reg = readl(sfc->regbase + SFC_RISR);
+
+ /* Clear interrupt */
+ writel_relaxed(reg, sfc->regbase + SFC_ICLR);
+
+ if (reg & SFC_RISR_DMA) {
+ complete(&sfc->cp);
+
+ return IRQ_HANDLED;
+ }
+
+ return IRQ_NONE;
+}
+
+static int rockchip_sfc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct spi_master *master;
+ struct resource *res;
+ struct rockchip_sfc *sfc;
+ int ret;
+
+ master = devm_spi_alloc_master(&pdev->dev, sizeof(*sfc));
+ if (!master)
+ return -ENOMEM;
+
+ master->flags = SPI_MASTER_HALF_DUPLEX;
+ master->mem_ops = &rockchip_sfc_mem_ops;
+ master->dev.of_node = pdev->dev.of_node;
+ master->mode_bits = SPI_TX_QUAD | SPI_TX_DUAL | SPI_RX_QUAD | SPI_RX_DUAL;
+ master->max_speed_hz = SFC_MAX_SPEED;
+ master->num_chipselect = SFC_MAX_CHIPSELECT_NUM;
+
+ sfc = spi_master_get_devdata(master);
+ sfc->dev = dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ sfc->regbase = devm_ioremap_resource(dev, res);
+ if (IS_ERR(sfc->regbase))
+ return PTR_ERR(sfc->regbase);
+
+ sfc->clk = devm_clk_get(&pdev->dev, "clk_sfc");
+ if (IS_ERR(sfc->clk)) {
+ dev_err(&pdev->dev, "Failed to get sfc interface clk\n");
+ return PTR_ERR(sfc->clk);
+ }
+
+ sfc->hclk = devm_clk_get(&pdev->dev, "hclk_sfc");
+ if (IS_ERR(sfc->hclk)) {
+ dev_err(&pdev->dev, "Failed to get sfc ahb clk\n");
+ return PTR_ERR(sfc->hclk);
+ }
+
+ sfc->use_dma = !of_property_read_bool(sfc->dev->of_node,
+ "rockchip,sfc-no-dma");
+
+ if (sfc->use_dma) {
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+ if (ret) {
+ dev_warn(dev, "Unable to set dma mask\n");
+ return ret;
+ }
+
+ sfc->buffer = dmam_alloc_coherent(dev, SFC_MAX_IOSIZE_VER3,
+ &sfc->dma_buffer,
+ GFP_KERNEL);
+ if (!sfc->buffer)
+ return -ENOMEM;
+ }
+
+ ret = clk_prepare_enable(sfc->hclk);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to enable ahb clk\n");
+ goto err_hclk;
+ }
+
+ ret = clk_prepare_enable(sfc->clk);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to enable interface clk\n");
+ goto err_clk;
+ }
+
+ /* Find the irq */
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0) {
+ dev_err(dev, "Failed to get the irq\n");
+ goto err_irq;
+ }
+
+ ret = devm_request_irq(dev, ret, rockchip_sfc_irq_handler,
+ 0, pdev->name, sfc);
+ if (ret) {
+ dev_err(dev, "Failed to request irq\n");
+
+ return ret;
+ }
+
+ ret = rockchip_sfc_init(sfc);
+ if (ret)
+ goto err_irq;
+
+ sfc->max_iosize = rockchip_sfc_get_max_iosize(sfc);
+ sfc->version = rockchip_sfc_get_version(sfc);
+
+ ret = spi_register_master(master);
+ if (ret)
+ goto err_irq;
+
+ return 0;
+
+err_irq:
+ clk_disable_unprepare(sfc->clk);
+err_clk:
+ clk_disable_unprepare(sfc->hclk);
+err_hclk:
+ return ret;
+}
+
+static int rockchip_sfc_remove(struct platform_device *pdev)
+{
+ struct spi_master *master = platform_get_drvdata(pdev);
+ struct rockchip_sfc *sfc = platform_get_drvdata(pdev);
+
+ spi_unregister_master(master);
+
+ clk_disable_unprepare(sfc->clk);
+ clk_disable_unprepare(sfc->hclk);
+
+ return 0;
+}
+
+static const struct of_device_id rockchip_sfc_dt_ids[] = {
+ { .compatible = "rockchip,sfc"},
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, rockchip_sfc_dt_ids);
+
+static struct platform_driver rockchip_sfc_driver = {
+ .driver = {
+ .name = "rockchip-sfc",
+ .of_match_table = rockchip_sfc_dt_ids,
+ },
+ .probe = rockchip_sfc_probe,
+ .remove = rockchip_sfc_remove,
+};
+module_platform_driver(rockchip_sfc_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Rockchip Serial Flash Controller Driver");
+MODULE_AUTHOR("Shawn Lin <shawn.lin@rock-chips.com>");
+MODULE_AUTHOR("Chris Morgan <macromorgan@hotmail.com>");
+MODULE_AUTHOR("Jon Lin <Jon.lin@rock-chips.com>");
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