* [PATCH 1/3] arm: dts: meson: import dts files from Linux 4.12-rc6
2017-06-25 15:55 [PATCH 0/3] GPIO support for Meson GXBB and Odroid-C2 Beniamino Galvani
@ 2017-06-25 15:55 ` Beniamino Galvani
2017-07-07 3:57 ` Simon Glass
2017-06-25 15:55 ` [PATCH 2/3] pinctrl: meson: add GPIO support Beniamino Galvani
` (2 subsequent siblings)
3 siblings, 1 reply; 9+ messages in thread
From: Beniamino Galvani @ 2017-06-25 15:55 UTC (permalink / raw)
To: linus-amlogic
Import Amlogic Meson DTS files from Linux kernel version 4.12-rc6.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
arch/arm/dts/meson-gx.dtsi | 97 ++++++++++++++++--
arch/arm/dts/meson-gxbb-odroidc2.dts | 82 ++++++++++++++-
arch/arm/dts/meson-gxbb.dtsi | 187 ++++++++++++++++++++++++++++------
include/dt-bindings/clock/gxbb-clkc.h | 14 ++-
4 files changed, 335 insertions(+), 45 deletions(-)
diff --git a/arch/arm/dts/meson-gx.dtsi b/arch/arm/dts/meson-gx.dtsi
index c129100..436b875 100644
--- a/arch/arm/dts/meson-gx.dtsi
+++ b/arch/arm/dts/meson-gx.dtsi
@@ -71,6 +71,14 @@
reg = <0x0 0x10000000 0x0 0x200000>;
no-map;
};
+
+ linux,cma {
+ compatible = "shared-dma-pool";
+ reusable;
+ size = <0x0 0xbc00000>;
+ alignment = <0x0 0x400000>;
+ linux,cma-default;
+ };
};
cpus {
@@ -233,7 +241,7 @@
};
i2c_A: i2c at 8500 {
- compatible = "amlogic,meson-gxbb-i2c";
+ compatible = "amlogic,meson-gx-i2c", "amlogic,meson-gxbb-i2c";
reg = <0x0 0x08500 0x0 0x20>;
interrupts = <GIC_SPI 21 IRQ_TYPE_EDGE_RISING>;
#address-cells = <1>;
@@ -255,6 +263,14 @@
status = "disabled";
};
+ saradc: adc at 8680 {
+ compatible = "amlogic,meson-saradc";
+ reg = <0x0 0x8680 0x0 0x34>;
+ #io-channel-cells = <1>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ };
+
pwm_ef: pwm at 86c0 {
compatible = "amlogic,meson-gx-pwm", "amlogic,meson-gxbb-pwm";
reg = <0x0 0x086c0 0x0 0x10>;
@@ -271,7 +287,7 @@
};
i2c_B: i2c at 87c0 {
- compatible = "amlogic,meson-gxbb-i2c";
+ compatible = "amlogic,meson-gx-i2c", "amlogic,meson-gxbb-i2c";
reg = <0x0 0x087c0 0x0 0x20>;
interrupts = <GIC_SPI 214 IRQ_TYPE_EDGE_RISING>;
#address-cells = <1>;
@@ -280,7 +296,7 @@
};
i2c_C: i2c at 87e0 {
- compatible = "amlogic,meson-gxbb-i2c";
+ compatible = "amlogic,meson-gx-i2c", "amlogic,meson-gxbb-i2c";
reg = <0x0 0x087e0 0x0 0x20>;
interrupts = <GIC_SPI 215 IRQ_TYPE_EDGE_RISING>;
#address-cells = <1>;
@@ -288,6 +304,14 @@
status = "disabled";
};
+ spifc: spi at 8c80 {
+ compatible = "amlogic,meson-gx-spifc", "amlogic,meson-gxbb-spifc";
+ reg = <0x0 0x08c80 0x0 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
watchdog at 98d0 {
compatible = "amlogic,meson-gx-wdt", "amlogic,meson-gxbb-wdt";
reg = <0x0 0x098d0 0x0 0x10>;
@@ -309,7 +333,7 @@
};
sram: sram at c8000000 {
- compatible = "amlogic,meson-gxbb-sram", "mmio-sram";
+ compatible = "amlogic,meson-gx-sram", "amlogic,meson-gxbb-sram", "mmio-sram";
reg = <0x0 0xc8000000 0x0 0x14000>;
#address-cells = <1>;
@@ -317,12 +341,12 @@
ranges = <0 0x0 0xc8000000 0x14000>;
cpu_scp_lpri: scp-shmem at 0 {
- compatible = "amlogic,meson-gxbb-scp-shmem";
+ compatible = "amlogic,meson-gx-scp-shmem", "amlogic,meson-gxbb-scp-shmem";
reg = <0x13000 0x400>;
};
cpu_scp_hpri: scp-shmem at 200 {
- compatible = "amlogic,meson-gxbb-scp-shmem";
+ compatible = "amlogic,meson-gx-scp-shmem", "amlogic,meson-gxbb-scp-shmem";
reg = <0x13400 0x400>;
};
};
@@ -334,6 +358,13 @@
#size-cells = <2>;
ranges = <0x0 0x0 0x0 0xc8100000 0x0 0x100000>;
+ clkc_AO: clock-controller at 040 {
+ compatible = "amlogic,gx-aoclkc", "amlogic,gxbb-aoclkc";
+ reg = <0x0 0x00040 0x0 0x4>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
uart_AO: serial at 4c0 {
compatible = "amlogic,meson-uart";
reg = <0x0 0x004c0 0x0 0x14>;
@@ -350,8 +381,24 @@
status = "disabled";
};
+ i2c_AO: i2c at 500 {
+ compatible = "amlogic,meson-gx-i2c", "amlogic,meson-gxbb-i2c";
+ reg = <0x0 0x500 0x0 0x20>;
+ interrupts = <GIC_SPI 195 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ pwm_AO_ab: pwm at 550 {
+ compatible = "amlogic,meson-gx-pwm", "amlogic,meson-gxbb-pwm";
+ reg = <0x0 0x00550 0x0 0x10>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
ir: ir at 580 {
- compatible = "amlogic,meson-gxbb-ir";
+ compatible = "amlogic,meson-gx-ir", "amlogic,meson-gxbb-ir";
reg = <0x0 0x00580 0x0 0x40>;
interrupts = <GIC_SPI 196 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
@@ -365,13 +412,12 @@
#size-cells = <2>;
ranges = <0x0 0x0 0x0 0xc8834000 0x0 0x2000>;
- rng {
+ hwrng: rng {
compatible = "amlogic,meson-rng";
reg = <0x0 0x0 0x0 0x4>;
};
};
-
hiubus: hiubus at c883c000 {
compatible = "simple-bus";
reg = <0x0 0xc883c000 0x0 0x2000>;
@@ -395,7 +441,6 @@
0x0 0xc8834540 0x0 0x4>;
interrupts = <0 8 1>;
interrupt-names = "macirq";
- phy-mode = "rgmii";
status = "disabled";
};
@@ -442,6 +487,38 @@
cvbs_vdac_port: port at 0 {
reg = <0>;
};
+
+ /* HDMI-TX output port */
+ hdmi_tx_port: port at 1 {
+ reg = <1>;
+
+ hdmi_tx_out: endpoint {
+ remote-endpoint = <&hdmi_tx_in>;
+ };
+ };
+ };
+
+ hdmi_tx: hdmi-tx at c883a000 {
+ compatible = "amlogic,meson-gx-dw-hdmi";
+ reg = <0x0 0xc883a000 0x0 0x1c>;
+ interrupts = <GIC_SPI 57 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ /* VPU VENC Input */
+ hdmi_tx_venc_port: port at 0 {
+ reg = <0>;
+
+ hdmi_tx_in: endpoint {
+ remote-endpoint = <&hdmi_tx_out>;
+ };
+ };
+
+ /* TMDS Output */
+ hdmi_tx_tmds_port: port at 1 {
+ reg = <1>;
+ };
};
};
};
diff --git a/arch/arm/dts/meson-gxbb-odroidc2.dts b/arch/arm/dts/meson-gxbb-odroidc2.dts
index c737183..54a9c6a 100644
--- a/arch/arm/dts/meson-gxbb-odroidc2.dts
+++ b/arch/arm/dts/meson-gxbb-odroidc2.dts
@@ -50,7 +50,7 @@
/ {
compatible = "hardkernel,odroid-c2", "amlogic,meson-gxbb";
model = "Hardkernel ODROID-C2";
-
+
aliases {
serial0 = &uart_AO;
};
@@ -96,7 +96,7 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
- gpio = <&gpio_ao GPIOAO_12 GPIO_ACTIVE_HIGH>;
+ gpio = <&gpio GPIOY_12 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
@@ -152,6 +152,13 @@
pinctrl-0 = <ð_rgmii_pins>;
pinctrl-names = "default";
phy-handle = <ð_phy0>;
+ phy-mode = "rgmii";
+
+ snps,reset-gpio = <&gpio GPIOZ_14 0>;
+ snps,reset-delays-us = <0 10000 1000000>;
+ snps,reset-active-low;
+
+ amlogic,tx-delay-ns = <2>;
mdio {
compatible = "snps,dwmac-mdio";
@@ -165,6 +172,57 @@
};
};
+&pinctrl_aobus {
+ gpio-line-names = "UART TX", "UART RX", "VCCK En", "TF 3V3/1V8 En",
+ "USB HUB nRESET", "USB OTG Power En",
+ "J7 Header Pin2", "IR In", "J7 Header Pin4",
+ "J7 Header Pin6", "J7 Header Pin5", "J7 Header Pin7",
+ "HDMI CEC", "SYS LED";
+};
+
+&pinctrl_periphs {
+ gpio-line-names = /* Bank GPIOZ */
+ "Eth MDIO", "Eth MDC", "Eth RGMII RX Clk",
+ "Eth RX DV", "Eth RX D0", "Eth RX D1", "Eth RX D2",
+ "Eth RX D3", "Eth RGMII TX Clk", "Eth TX En",
+ "Eth TX D0", "Eth TX D1", "Eth TX D2", "Eth TX D3",
+ "Eth PHY nRESET", "Eth PHY Intc",
+ /* Bank GPIOH */
+ "HDMI HPD", "HDMI DDC SDA", "HDMI DDC SCL", "",
+ /* Bank BOOT */
+ "eMMC D0", "eMMC D1", "eMMC D2", "eMMC D3", "eMMC D4",
+ "eMMC D5", "eMMC D6", "eMMC D7", "eMMC Clk",
+ "eMMC Reset", "eMMC CMD",
+ "", "", "", "", "", "", "",
+ /* Bank CARD */
+ "SDCard D1", "SDCard D0", "SDCard CLK", "SDCard CMD",
+ "SDCard D3", "SDCard D2", "SDCard Det",
+ /* Bank GPIODV */
+ "", "", "", "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "", "",
+ "I2C A SDA", "I2C A SCK", "I2C B SDA", "I2C B SCK",
+ "PWM D", "PWM B",
+ /* Bank GPIOY */
+ "Revision Bit0", "Revision Bit1", "",
+ "J2 Header Pin35", "", "", "", "J2 Header Pin36",
+ "J2 Header Pin31", "", "", "", "TF VDD En",
+ "J2 Header Pin32", "J2 Header Pin26", "", "",
+ /* Bank GPIOX */
+ "J2 Header Pin29", "J2 Header Pin24",
+ "J2 Header Pin23", "J2 Header Pin22",
+ "J2 Header Pin21", "J2 Header Pin18",
+ "J2 Header Pin33", "J2 Header Pin19",
+ "J2 Header Pin16", "J2 Header Pin15",
+ "J2 Header Pin12", "J2 Header Pin13",
+ "J2 Header Pin8", "J2 Header Pin10",
+ "", "", "", "", "",
+ "J2 Header Pin11", "", "J2 Header Pin7",
+ /* Bank GPIOCLK */
+ "", "", "", "",
+ /* GPIO_TEST_N */
+ "";
+};
+
&ir {
status = "okay";
pinctrl-0 = <&remote_input_ao_pins>;
@@ -177,6 +235,21 @@
pinctrl-names = "default";
};
+&gpio_ao {
+ /*
+ * WARNING: The USB Hub on the Odroid-C2 needs a reset signal
+ * to be turned high in order to be detected by the USB Controller
+ * This signal should be handled by a USB specific power sequence
+ * in order to reset the Hub when USB bus is powered down.
+ */
+ usb-hub {
+ gpio-hog;
+ gpios = <GPIOAO_4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "usb-hub-reset";
+ };
+};
+
&usb0_phy {
status = "okay";
phy-supply = <&usb_otg_pwr>;
@@ -194,6 +267,11 @@
status = "okay";
};
+&saradc {
+ status = "okay";
+ vref-supply = <&vcc1v8>;
+};
+
/* SD */
&sd_emmc_b {
status = "okay";
diff --git a/arch/arm/dts/meson-gxbb.dtsi b/arch/arm/dts/meson-gxbb.dtsi
index 39a774a..86105a6 100644
--- a/arch/arm/dts/meson-gxbb.dtsi
+++ b/arch/arm/dts/meson-gxbb.dtsi
@@ -97,17 +97,6 @@
};
};
-&cbus {
- spifc: spi at 8c80 {
- compatible = "amlogic,meson-gxbb-spifc";
- reg = <0x0 0x08c80 0x0 0x80>;
- #address-cells = <1>;
- #size-cells = <0>;
- clocks = <&clkc CLKID_SPI>;
- status = "disabled";
- };
-};
-
ðmac {
clocks = <&clkc CLKID_ETH>,
<&clkc CLKID_FCLK_DIV2>,
@@ -129,6 +118,7 @@
reg-names = "mux", "pull", "gpio";
gpio-controller;
#gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_aobus 0 0 14>;
};
uart_ao_a_pins: uart_ao_a {
@@ -203,30 +193,62 @@
function = "pwm_ao_b";
};
};
- };
- clkc_AO: clock-controller at 040 {
- compatible = "amlogic,gxbb-aoclkc";
- reg = <0x0 0x00040 0x0 0x4>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
+ i2s_am_clk_pins: i2s_am_clk {
+ mux {
+ groups = "i2s_am_clk";
+ function = "i2s_out_ao";
+ };
+ };
- pwm_ab_AO: pwm at 550 {
- compatible = "amlogic,meson-gxbb-pwm";
- reg = <0x0 0x0550 0x0 0x10>;
- #pwm-cells = <3>;
- status = "disabled";
- };
+ i2s_out_ao_clk_pins: i2s_out_ao_clk {
+ mux {
+ groups = "i2s_out_ao_clk";
+ function = "i2s_out_ao";
+ };
+ };
+
+ i2s_out_lr_clk_pins: i2s_out_lr_clk {
+ mux {
+ groups = "i2s_out_lr_clk";
+ function = "i2s_out_ao";
+ };
+ };
+
+ i2s_out_ch01_ao_pins: i2s_out_ch01_ao {
+ mux {
+ groups = "i2s_out_ch01_ao";
+ function = "i2s_out_ao";
+ };
+ };
+
+ i2s_out_ch23_ao_pins: i2s_out_ch23_ao {
+ mux {
+ groups = "i2s_out_ch23_ao";
+ function = "i2s_out_ao";
+ };
+ };
+
+ i2s_out_ch45_ao_pins: i2s_out_ch45_ao {
+ mux {
+ groups = "i2s_out_ch45_ao";
+ function = "i2s_out_ao";
+ };
+ };
+
+ spdif_out_ao_6_pins: spdif_out_ao_6 {
+ mux {
+ groups = "spdif_out_ao_6";
+ function = "spdif_out_ao";
+ };
+ };
- i2c_AO: i2c at 500 {
- compatible = "amlogic,meson-gxbb-i2c";
- reg = <0x0 0x500 0x0 0x20>;
- interrupts = <GIC_SPI 195 IRQ_TYPE_EDGE_RISING>;
- clocks = <&clkc CLKID_AO_I2C>;
- #address-cells = <1>;
- #size-cells = <0>;
- status = "disabled";
+ spdif_out_ao_13_pins: spdif_out_ao_13 {
+ mux {
+ groups = "spdif_out_ao_13";
+ function = "spdif_out_ao";
+ };
+ };
};
};
@@ -245,6 +267,7 @@
reg-names = "mux", "pull", "pull-enable", "gpio";
gpio-controller;
#gpio-cells = <2>;
+ gpio-ranges = <&pinctrl_periphs 0 14 120>;
};
emmc_pins: emmc {
@@ -467,6 +490,34 @@
function = "hdmi_i2c";
};
};
+
+ i2sout_ch23_y_pins: i2sout_ch23_y {
+ mux {
+ groups = "i2sout_ch23_y";
+ function = "i2s_out";
+ };
+ };
+
+ i2sout_ch45_y_pins: i2sout_ch45_y {
+ mux {
+ groups = "i2sout_ch45_y";
+ function = "i2s_out";
+ };
+ };
+
+ i2sout_ch67_y_pins: i2sout_ch67_y {
+ mux {
+ groups = "i2sout_ch67_y";
+ function = "i2s_out";
+ };
+ };
+
+ spdif_out_y_pins: spdif_out_y {
+ mux {
+ groups = "spdif_out_y";
+ function = "spdif_out";
+ };
+ };
};
};
@@ -478,10 +529,51 @@
};
};
+&apb {
+ mali: gpu at c0000 {
+ compatible = "amlogic,meson-gxbb-mali", "arm,mali-450";
+ reg = <0x0 0xc0000 0x0 0x40000>;
+ interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "gp", "gpmmu", "pp", "pmu",
+ "pp0", "ppmmu0", "pp1", "ppmmu1",
+ "pp2", "ppmmu2";
+ clocks = <&clkc CLKID_CLK81>, <&clkc CLKID_MALI>;
+ clock-names = "bus", "core";
+
+ /*
+ * Mali clocking is provided by two identical clock paths
+ * MALI_0 and MALI_1 muxed to a single clock by a glitch
+ * free mux to safely change frequency while running.
+ */
+ assigned-clocks = <&clkc CLKID_MALI_0_SEL>,
+ <&clkc CLKID_MALI_0>,
+ <&clkc CLKID_MALI>; /* Glitch free mux */
+ assigned-clock-parents = <&clkc CLKID_FCLK_DIV3>,
+ <0>, /* Do Nothing */
+ <&clkc CLKID_MALI_0>;
+ assigned-clock-rates = <0>, /* Do Nothing */
+ <666666666>,
+ <0>; /* Do Nothing */
+ };
+};
+
&i2c_A {
clocks = <&clkc CLKID_I2C>;
};
+&i2c_AO {
+ clocks = <&clkc CLKID_AO_I2C>;
+};
+
&i2c_B {
clocks = <&clkc CLKID_I2C>;
};
@@ -490,6 +582,16 @@
clocks = <&clkc CLKID_I2C>;
};
+&saradc {
+ compatible = "amlogic,meson-gxbb-saradc", "amlogic,meson-saradc";
+ clocks = <&xtal>,
+ <&clkc CLKID_SAR_ADC>,
+ <&clkc CLKID_SANA>,
+ <&clkc CLKID_SAR_ADC_CLK>,
+ <&clkc CLKID_SAR_ADC_SEL>;
+ clock-names = "clkin", "core", "sana", "adc_clk", "adc_sel";
+};
+
&sd_emmc_a {
clocks = <&clkc CLKID_SD_EMMC_A>,
<&xtal>,
@@ -511,6 +613,27 @@
clock-names = "core", "clkin0", "clkin1";
};
+&spifc {
+ clocks = <&clkc CLKID_SPI>;
+};
+
&vpu {
compatible = "amlogic,meson-gxbb-vpu", "amlogic,meson-gx-vpu";
};
+
+&hwrng {
+ clocks = <&clkc CLKID_RNG0>;
+ clock-names = "core";
+};
+
+&hdmi_tx {
+ compatible = "amlogic,meson-gxbb-dw-hdmi", "amlogic,meson-gx-dw-hdmi";
+ resets = <&reset RESET_HDMITX_CAPB3>,
+ <&reset RESET_HDMI_SYSTEM_RESET>,
+ <&reset RESET_HDMI_TX>;
+ reset-names = "hdmitx_apb", "hdmitx", "hdmitx_phy";
+ clocks = <&clkc CLKID_HDMI_PCLK>,
+ <&clkc CLKID_CLK81>,
+ <&clkc CLKID_GCLK_VENCI_INT0>;
+ clock-names = "isfr", "iahb", "venci";
+};
diff --git a/include/dt-bindings/clock/gxbb-clkc.h b/include/dt-bindings/clock/gxbb-clkc.h
index 692846c..3190e30 100644
--- a/include/dt-bindings/clock/gxbb-clkc.h
+++ b/include/dt-bindings/clock/gxbb-clkc.h
@@ -10,12 +10,18 @@
#define CLKID_FCLK_DIV2 4
#define CLKID_FCLK_DIV3 5
#define CLKID_FCLK_DIV4 6
+#define CLKID_GP0_PLL 9
#define CLKID_CLK81 12
#define CLKID_MPLL2 15
-#define CLKID_SPI 34
#define CLKID_I2C 22
#define CLKID_SAR_ADC 23
+#define CLKID_RNG0 25
+#define CLKID_SPI 34
#define CLKID_ETH 36
+#define CLKID_AIU_GLUE 38
+#define CLKID_I2S_OUT 40
+#define CLKID_MIXER_IFACE 44
+#define CLKID_AIU 47
#define CLKID_USB0 50
#define CLKID_USB1 51
#define CLKID_USB 55
@@ -24,11 +30,17 @@
#define CLKID_USB0_DDR_BRIDGE 65
#define CLKID_SANA 69
#define CLKID_GCLK_VENCI_INT0 77
+#define CLKID_AOCLK_GATE 80
#define CLKID_AO_I2C 93
#define CLKID_SD_EMMC_A 94
#define CLKID_SD_EMMC_B 95
#define CLKID_SD_EMMC_C 96
#define CLKID_SAR_ADC_CLK 97
#define CLKID_SAR_ADC_SEL 98
+#define CLKID_MALI_0_SEL 100
+#define CLKID_MALI_0 102
+#define CLKID_MALI_1_SEL 103
+#define CLKID_MALI_1 105
+#define CLKID_MALI 106
#endif /* __GXBB_CLKC_H */
--
2.9.3
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH 2/3] pinctrl: meson: add GPIO support
2017-06-25 15:55 [PATCH 0/3] GPIO support for Meson GXBB and Odroid-C2 Beniamino Galvani
2017-06-25 15:55 ` [PATCH 1/3] arm: dts: meson: import dts files from Linux 4.12-rc6 Beniamino Galvani
@ 2017-06-25 15:55 ` Beniamino Galvani
2017-07-07 3:57 ` Simon Glass
2017-06-25 15:55 ` [PATCH 3/3] odroid-c2: enable GPIO Beniamino Galvani
2017-06-26 10:24 ` [PATCH 0/3] GPIO support for Meson GXBB and Odroid-C2 Jerome Brunet
3 siblings, 1 reply; 9+ messages in thread
From: Beniamino Galvani @ 2017-06-25 15:55 UTC (permalink / raw)
To: linus-amlogic
This commit adds GPIO support to the Amlogic Meson pin controller
driver, based on code from Linux kernel.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
drivers/pinctrl/meson/pinctrl-meson-gxbb.c | 21 ++++
drivers/pinctrl/meson/pinctrl-meson.c | 167 ++++++++++++++++++++++++++++-
drivers/pinctrl/meson/pinctrl-meson.h | 63 +++++++++++
3 files changed, 249 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/meson/pinctrl-meson-gxbb.c b/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
index 2fa840c..87c9912 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
@@ -391,14 +391,33 @@ static struct meson_pmx_func meson_gxbb_aobus_functions[] = {
FUNCTION(i2c_slave_ao),
};
+static struct meson_bank meson_gxbb_periphs_banks[] = {
+ /* name first last pullen pull dir out in */
+ BANK("X", PIN(GPIOX_0, EE_OFF), PIN(GPIOX_22, EE_OFF), 4, 0, 4, 0, 12, 0, 13, 0, 14, 0),
+ BANK("Y", PIN(GPIOY_0, EE_OFF), PIN(GPIOY_16, EE_OFF), 1, 0, 1, 0, 3, 0, 4, 0, 5, 0),
+ BANK("DV", PIN(GPIODV_0, EE_OFF), PIN(GPIODV_29, EE_OFF), 0, 0, 0, 0, 0, 0, 1, 0, 2, 0),
+ BANK("H", PIN(GPIOH_0, EE_OFF), PIN(GPIOH_3, EE_OFF), 1, 20, 1, 20, 3, 20, 4, 20, 5, 20),
+ BANK("Z", PIN(GPIOZ_0, EE_OFF), PIN(GPIOZ_15, EE_OFF), 3, 0, 3, 0, 9, 0, 10, 0, 11, 0),
+ BANK("CARD", PIN(CARD_0, EE_OFF), PIN(CARD_6, EE_OFF), 2, 20, 2, 20, 6, 20, 7, 20, 8, 20),
+ BANK("BOOT", PIN(BOOT_0, EE_OFF), PIN(BOOT_17, EE_OFF), 2, 0, 2, 0, 6, 0, 7, 0, 8, 0),
+ BANK("CLK", PIN(GPIOCLK_0, EE_OFF), PIN(GPIOCLK_3, EE_OFF), 3, 28, 3, 28, 9, 28, 10, 28, 11, 28),
+};
+
+static struct meson_bank meson_gxbb_aobus_banks[] = {
+ /* name first last pullen pull dir out in */
+ BANK("AO", PIN(GPIOAO_0, 0), PIN(GPIOAO_13, 0), 0, 0, 0, 16, 0, 0, 0, 16, 1, 0),
+};
+
struct meson_pinctrl_data meson_gxbb_periphs_pinctrl_data = {
.name = "periphs-banks",
.pin_base = 14,
.groups = meson_gxbb_periphs_groups,
.funcs = meson_gxbb_periphs_functions,
+ .banks = meson_gxbb_periphs_banks,
.num_pins = 120,
.num_groups = ARRAY_SIZE(meson_gxbb_periphs_groups),
.num_funcs = ARRAY_SIZE(meson_gxbb_periphs_functions),
+ .num_banks = ARRAY_SIZE(meson_gxbb_periphs_banks),
};
struct meson_pinctrl_data meson_gxbb_aobus_pinctrl_data = {
@@ -406,9 +425,11 @@ struct meson_pinctrl_data meson_gxbb_aobus_pinctrl_data = {
.pin_base = 0,
.groups = meson_gxbb_aobus_groups,
.funcs = meson_gxbb_aobus_functions,
+ .banks = meson_gxbb_aobus_banks,
.num_pins = 14,
.num_groups = ARRAY_SIZE(meson_gxbb_aobus_groups),
.num_funcs = ARRAY_SIZE(meson_gxbb_aobus_functions),
+ .num_banks = ARRAY_SIZE(meson_gxbb_aobus_banks),
};
static const struct udevice_id meson_gxbb_pinctrl_match[] = {
diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c
index 6281f52..0ac1dc6 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.c
+++ b/drivers/pinctrl/meson/pinctrl-meson.c
@@ -6,11 +6,14 @@
#include <common.h>
#include <dm.h>
+#include <dm/device-internal.h>
+#include <dm/lists.h>
#include <dm/pinctrl.h>
#include <fdt_support.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/sizes.h>
+#include <asm/gpio.h>
#include "pinctrl-meson.h"
@@ -135,12 +138,152 @@ static fdt_addr_t parse_address(int offset, const char *name, int na, int ns)
return fdt_translate_address((void *)gd->fdt_blob, offset, reg);
}
+static int meson_gpio_calc_reg_and_bit(struct udevice *dev, unsigned int offset,
+ enum meson_reg_type reg_type,
+ unsigned int *reg, unsigned int *bit)
+{
+ struct meson_pinctrl *priv = dev_get_priv(dev->parent);
+ struct meson_bank *bank = NULL;
+ struct meson_reg_desc *desc;
+ unsigned int pin;
+ int i;
+
+ pin = priv->data->pin_base + offset;
+
+ for (i = 0; i < priv->data->num_banks; i++) {
+ if (pin >= priv->data->banks[i].first &&
+ pin <= priv->data->banks[i].last) {
+ bank = &priv->data->banks[i];
+ break;
+ }
+ }
+
+ if (!bank)
+ return -EINVAL;
+
+ desc = &bank->regs[reg_type];
+ *reg = desc->reg * 4;
+ *bit = desc->bit + pin - bank->first;
+
+ return 0;
+}
+
+static int meson_gpio_get(struct udevice *dev, unsigned int offset)
+{
+ struct meson_pinctrl *priv = dev_get_priv(dev->parent);
+ unsigned int reg, bit;
+ int ret;
+
+ ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_IN, ®, &bit);
+ if (ret)
+ return ret;
+
+ return !!(readl(priv->reg_gpio + reg) & BIT(bit));
+}
+
+static int meson_gpio_set(struct udevice *dev, unsigned int offset, int value)
+{
+ struct meson_pinctrl *priv = dev_get_priv(dev->parent);
+ unsigned int reg, bit;
+ int ret;
+
+ ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_OUT, ®, &bit);
+ if (ret)
+ return ret;
+
+ clrsetbits_le32(priv->reg_gpio + reg, BIT(bit), value ? BIT(bit) : 0);
+
+ return 0;
+}
+
+static int meson_gpio_get_direction(struct udevice *dev, unsigned int offset)
+{
+ struct meson_pinctrl *priv = dev_get_priv(dev->parent);
+ unsigned int reg, bit, val;
+ int ret;
+
+ ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_DIR, ®, &bit);
+ if (ret)
+ return ret;
+
+ val = readl(priv->reg_gpio + reg);
+
+ return (val & BIT(bit)) ? GPIOF_INPUT : GPIOF_OUTPUT;
+}
+
+static int meson_gpio_direction_input(struct udevice *dev, unsigned int offset)
+{
+ struct meson_pinctrl *priv = dev_get_priv(dev->parent);
+ unsigned int reg, bit;
+ int ret;
+
+ ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_DIR, ®, &bit);
+ if (ret)
+ return ret;
+
+ clrsetbits_le32(priv->reg_gpio + reg, BIT(bit), 1);
+
+ return 0;
+}
+
+static int meson_gpio_direction_output(struct udevice *dev,
+ unsigned int offset, int value)
+{
+ struct meson_pinctrl *priv = dev_get_priv(dev->parent);
+ unsigned int reg, bit;
+ int ret;
+
+ ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_DIR, ®, &bit);
+ if (ret)
+ return ret;
+
+ clrsetbits_le32(priv->reg_gpio + reg, BIT(bit), 0);
+
+ ret = meson_gpio_calc_reg_and_bit(dev, offset, REG_OUT, ®, &bit);
+ if (ret)
+ return ret;
+
+ clrsetbits_le32(priv->reg_gpio + reg, BIT(bit), value ? BIT(bit) : 0);
+
+ return 0;
+}
+
+static int meson_gpio_probe(struct udevice *dev)
+{
+ struct meson_pinctrl *priv = dev_get_priv(dev->parent);
+ struct gpio_dev_priv *uc_priv;
+
+ uc_priv = dev_get_uclass_priv(dev);
+ uc_priv->bank_name = priv->data->name;
+ uc_priv->gpio_count = priv->data->num_pins;
+
+ return 0;
+}
+
+static const struct dm_gpio_ops meson_gpio_ops = {
+ .set_value = meson_gpio_set,
+ .get_value = meson_gpio_get,
+ .get_function = meson_gpio_get_direction,
+ .direction_input = meson_gpio_direction_input,
+ .direction_output = meson_gpio_direction_output,
+};
+
+static struct driver meson_gpio_driver = {
+ .name = "meson-gpio",
+ .id = UCLASS_GPIO,
+ .probe = meson_gpio_probe,
+ .ops = &meson_gpio_ops,
+};
+
int meson_pinctrl_probe(struct udevice *dev)
{
struct meson_pinctrl *priv = dev_get_priv(dev);
+ struct uclass_driver *drv;
+ struct udevice *gpio_dev;
fdt_addr_t addr;
int node, gpio = -1, len;
int na, ns;
+ char *name;
na = fdt_address_cells(gd->fdt_blob, dev_of_offset(dev->parent));
if (na < 1) {
@@ -168,12 +311,32 @@ int meson_pinctrl_probe(struct udevice *dev)
addr = parse_address(gpio, "mux", na, ns);
if (addr == FDT_ADDR_T_NONE) {
- debug("mux not found\n");
+ debug("mux address not found\n");
return -EINVAL;
}
-
priv->reg_mux = (void __iomem *)addr;
+
+ addr = parse_address(gpio, "gpio", na, ns);
+ if (addr == FDT_ADDR_T_NONE) {
+ debug("gpio address not found\n");
+ return -EINVAL;
+ }
+ priv->reg_gpio = (void __iomem *)addr;
priv->data = (struct meson_pinctrl_data *)dev_get_driver_data(dev);
+ /* Lookup GPIO driver */
+ drv = lists_uclass_lookup(UCLASS_GPIO);
+ if (!drv) {
+ puts("Cannot find GPIO driver\n");
+ return -ENOENT;
+ }
+
+ name = calloc(1, 32);
+ sprintf(name, "meson-gpio");
+
+ /* Create child device UCLASS_GPIO and bind it */
+ device_bind(dev, &meson_gpio_driver, name, NULL, gpio, &gpio_dev);
+ dev_set_of_offset(gpio_dev, gpio);
+
return 0;
}
diff --git a/drivers/pinctrl/meson/pinctrl-meson.h b/drivers/pinctrl/meson/pinctrl-meson.h
index 4127a60..90d2369 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.h
+++ b/drivers/pinctrl/meson/pinctrl-meson.h
@@ -28,15 +28,64 @@ struct meson_pinctrl_data {
const char *name;
struct meson_pmx_group *groups;
struct meson_pmx_func *funcs;
+ struct meson_bank *banks;
unsigned int pin_base;
unsigned int num_pins;
unsigned int num_groups;
unsigned int num_funcs;
+ unsigned int num_banks;
};
struct meson_pinctrl {
struct meson_pinctrl_data *data;
void __iomem *reg_mux;
+ void __iomem *reg_gpio;
+};
+
+/**
+ * struct meson_reg_desc - a register descriptor
+ *
+ * @reg: register offset in the regmap
+ * @bit: bit index in register
+ *
+ * The structure describes the information needed to control pull,
+ * pull-enable, direction, etc. for a single pin
+ */
+struct meson_reg_desc {
+ unsigned int reg;
+ unsigned int bit;
+};
+
+/**
+ * enum meson_reg_type - type of registers encoded in @meson_reg_desc
+ */
+enum meson_reg_type {
+ REG_PULLEN,
+ REG_PULL,
+ REG_DIR,
+ REG_OUT,
+ REG_IN,
+ NUM_REG,
+};
+
+/**
+ * struct meson bank
+ *
+ * @name: bank name
+ * @first: first pin of the bank
+ * @last: last pin of the bank
+ * @regs: array of register descriptors
+ *
+ * A bank represents a set of pins controlled by a contiguous set of
+ * bits in the domain registers. The structure specifies which bits in
+ * the regmap control the different functionalities. Each member of
+ * the @regs array refers to the first pin of the bank.
+ */
+struct meson_bank {
+ const char *name;
+ unsigned int first;
+ unsigned int last;
+ struct meson_reg_desc regs[NUM_REG];
};
#define PIN(x, b) (b + x)
@@ -65,6 +114,20 @@ struct meson_pinctrl {
.num_groups = ARRAY_SIZE(fn ## _groups), \
}
+#define BANK(n, f, l, per, peb, pr, pb, dr, db, or, ob, ir, ib) \
+ { \
+ .name = n, \
+ .first = f, \
+ .last = l, \
+ .regs = { \
+ [REG_PULLEN] = { per, peb }, \
+ [REG_PULL] = { pr, pb }, \
+ [REG_DIR] = { dr, db }, \
+ [REG_OUT] = { or, ob }, \
+ [REG_IN] = { ir, ib }, \
+ }, \
+ }
+
#define MESON_PIN(x, b) PINCTRL_PIN(PIN(x, b), #x)
extern const struct pinctrl_ops meson_pinctrl_ops;
--
2.9.3
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