RE: [PATCH 6/7] arm64: dts: exynos: Add initial Exynos850 SoC support
From: Chanho Park <hidden>
Date: 2021-12-17 03:13:42
Also in:
linux-clk, linux-devicetree, linux-samsung-soc, lkml
Hi,
quoted hunk ↗ jump to hunk
-----Original Message----- From: Sam Protsenko <semen.protsenko@linaro.org> Sent: Thursday, December 16, 2021 1:09 AM To: Krzysztof Kozlowski <redacted>; Rob Herring [off-list ref]; Sylwester Nawrocki [off-list ref] Cc: Jaewon Kim <redacted>; Chanho Park [off-list ref]; David Virag [off-list ref]; Youngmin Nam [off-list ref]; Tomasz Figa [off-list ref]; Chanwoo Choi [off-list ref]; Michael Turquette [off-list ref]; Stephen Boyd [off-list ref]; Linus Walleij [off-list ref]; Daniel Palmer [off-list ref]; Hao Fang [off-list ref]; linux-arm-kernel@lists.infradead.org; linux-samsung-soc@vger.kernel.org; devicetree@vger.kernel.org; linux- kernel@vger.kernel.org; linux-clk@vger.kernel.org Subject: [PATCH 6/7] arm64: dts: exynos: Add initial Exynos850 SoC support Samsung Exynos850 is ARMv8-based mobile-oriented SoC. This patch adds initial SoC support. It's not comprehensive yet, some more devices will be added later. Right now only crucial system components and most needed platform devices are defined. Crucial features (needed to boot Linux up to shell with serial console): * Octa cores (Cortex-A55), supporting PSCI v1.0 * ARM architected timer (armv8-timer) * Interrupt controller (GIC-400) * Pinctrl nodes for GPIO * Serial node Basic platform features: * Clock controller CMUs * OSCCLK clock * RTC clock * MCT timer * ARM PMU (Performance Monitor Unit) * Chip-id * RTC * Reset * Watchdog timers * eMMC * I2C * HSI2C * USI All those features were already enabled and tested on E850-96 board with minimal BusyBox rootfs. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> --- .../boot/dts/exynos/exynos850-pinctrl.dtsi | 755 ++++++++++++++++++ arch/arm64/boot/dts/exynos/exynos850.dtsi | 755 ++++++++++++++++++ 2 files changed, 1510 insertions(+) create mode 100644 arch/arm64/boot/dts/exynos/exynos850-pinctrl.dtsi create mode 100644 arch/arm64/boot/dts/exynos/exynos850.dtsidiff --git a/arch/arm64/boot/dts/exynos/exynos850-pinctrl.dtsib/arch/arm64/boot/dts/exynos/exynos850-pinctrl.dtsi new file mode 100644 index 000000000000..ba4e8d3129ac--- /dev/null +++ b/arch/arm64/boot/dts/exynos/exynos850-pinctrl.dtsi@@ -0,0 +1,755 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Samsung's Exynos850 SoC pin-mux and pin-config device tree source + * + * Copyright (C) 2017 Samsung Electronics Co., Ltd. + * Copyright (C) 2021 Linaro Ltd. + * + * Samsung's Exynos850 SoC pin-mux and pin-config options are listed as +device + * tree nodes in this file. + */ + +#include <dt-bindings/interrupt-controller/arm-gic.h> +#include <dt-bindings/pinctrl/samsung.h> + +&pinctrl_alive { + gpa0: gpa0 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpa1: gpa1 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpa2: gpa2 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpa3: gpa3 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpa4: gpa4 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpq0: gpq0 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + + /* I2C5 (also called CAM_PMIC_I2C in TRM) */ + i2c5_pins: i2c5-pins { + samsung,pins = "gpa3-5", "gpa3-6"; + samsung,pin-function = <EXYNOS_PIN_FUNC_3>; + samsung,pin-pud = <EXYNOS_PIN_PULL_UP>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; + + /* I2C6 (also called MOTOR_I2C in TRM) */ + i2c6_pins: i2c6-pins { + samsung,pins = "gpa3-7", "gpa4-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_3>; + samsung,pin-pud = <EXYNOS_PIN_PULL_UP>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; + + /* USI: UART_DEBUG_0 pins */ + uart0_pins: uart0-pins { + samsung,pins = "gpq0-0", "gpq0-1"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; + + /* USI: UART_DEBUG_1 pins */ + uart1_pins: uart1-pins { + samsung,pins = "gpa3-7", "gpa4-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; +}; + +&pinctrl_cmgp { + gpm0: gpm0 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpm1: gpm1 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpm2: gpm2 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpm3: gpm3 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpm4: gpm4 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>; + }; + + gpm5: gpm5 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>; + }; + + /* USI_CMGP0: HSI2C function */ + hsi2c3_pins: hsi2c3-pins { + samsung,pins = "gpm0-0", "gpm1-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_UP>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; + + /* USI_CMGP0: UART function (4 pins, Auto Flow Control) */ + uart1_single_pins: uart1-single-pins { + samsung,pins = "gpm0-0", "gpm1-0", "gpm2-0", "gpm3-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; + + /* USI_CMGP0: UART function (2 pins, Non-Auto Flow Control) */ + uart1_dual_pins: uart1-dual-pins { + samsung,pins = "gpm0-0", "gpm1-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; + + /* USI_CMGP0: SPI function */ + spi1_pins: spi1-pins { + samsung,pins = "gpm0-0", "gpm1-0", "gpm2-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; + + spi1_cs_pins: spi1-cs-pins { + samsung,pins = "gpm3-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; + + spi1_cs_func_pins: spi1-cs-func-pins { + samsung,pins = "gpm3-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; + + /* USI_CMGP1: HSI2C function */ + hsi2c4_pins: hsi2c4-pins { + samsung,pins = "gpm4-0", "gpm5-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_UP>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; + + /* USI_CMGP1: UART function (4 pins, Auto Flow Control) */ + uart2_single_pins: uart2-single-pins { + samsung,pins = "gpm4-0", "gpm5-0", "gpm6-0", "gpm7-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; + + /* USI_CMGP1: UART function (2 pins, Non-Auto Flow Control) */ + uart2_dual_pins: uart2-dual-pins { + samsung,pins = "gpm4-0", "gpm5-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; + + /* USI_CMGP1: SPI function */ + spi2_pins: spi2-pins { + samsung,pins = "gpm4-0", "gpm5-0", "gpm6-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; + + spi2_cs_pins: spi2-cs-pins { + samsung,pins = "gpm7-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; + + spi2_cs_func_pins: spi2-cs-func-pins { + samsung,pins = "gpm7-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; + }; +}; + +&pinctrl_aud { + gpb0: gpb0 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpb1: gpb1 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + + aud_codec_mclk_pins: aud-codec-mclk-pins { + samsung,pins = "gpb0-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; + }; + + aud_codec_mclk_idle_pins: aud-codec-mclk-idle-pins { + samsung,pins = "gpb0-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>; + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; + }; + + aud_i2s0_pins: aud-i2s0-pins { + samsung,pins = "gpb0-1", "gpb0-2", "gpb0-3", "gpb0-4"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; + }; + + aud_i2s0_idle_pins: aud-i2s0-idle-pins { + samsung,pins = "gpb0-1", "gpb0-2", "gpb0-3", "gpb0-4"; + samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>; + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; + }; + + aud_i2s1_pins: aud-i2s1-pins { + samsung,pins = "gpb1-0", "gpb1-1", "gpb1-2", "gpb1-3"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; + }; + + aud_i2s1_idle_pins: aud-i2s1-idle-pins { + samsung,pins = "gpb1-0", "gpb1-1", "gpb1-2", "gpb1-3"; + samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>; + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; + }; + + aud_fm_pins: aud-fm-pins { + samsung,pins = "gpb1-4"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; + }; + + aud_fm_idle_pins: aud-fm-idle-pins { + samsung,pins = "gpb1-4"; + samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>; + samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; + }; +}; + +&pinctrl_hsi { + gpf2: gpf2 { + gpio-controller; + #gpio-cells = <2>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + + sd2_clk_pins: sd2-clk-pins { + samsung,pins = "gpf2-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV2>; + }; + + sd2_clk_fast_slew_rate_1x_pins: sd2-clk-fast-slew-rate-1x-pins { + samsung,pins = "gpf2-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV1>; + }; + + sd2_clk_fast_slew_rate_1_5x_pins: sd2-clk-fast-slew-rate-1-5x-pins{ + samsung,pins = "gpf2-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV1_5>; + }; + + sd2_clk_fast_slew_rate_2x_pins: sd2-clk-fast-slew-rate-2x-pins { + samsung,pins = "gpf2-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV2>; + }; + + sd2_clk_fast_slew_rate_2_5x_pins: sd2-clk-fast-slew-rate-2-5x-pins { + samsung,pins = "gpf2-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV2_5>; + }; + + sd2_clk_fast_slew_rate_3x_pins: sd2-clk-fast-slew-rate-3x-pins { + samsung,pins = "gpf2-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV3>; + }; + + sd2_clk_fast_slew_rate_4x_pins: sd2-clk-fast-slew-rate-4x-pins { + samsung,pins = "gpf2-0"; + samsung,pin-function = <EXYNOS_PIN_FUNC_2>; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV4>; + };
All the flew_rate_XX pins are necessary to be defined? They might be
required by board dts files and it's convenient to use them but I don't
think they should be pre-defined. We can override the sd2_clk_pins like
below in a board dts file.
&sd2_clk_pins {
samsung,pin-drv = <EXYNOS850_HSI_PIN_DRV_LV4>;
Otherwise, looks good to me.
Reviewed-by: Chanho Park <redacted>
Best Regards,
Chanho Park
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