Add support for MediaTek MT8516 SoC. This include the file that will initialize the SoC after boot and its device tree.
Signed-off-by: Fabien Parent fparent@baylibre.com --- arch/arm/dts/mt8516.dtsi | 142 +++++++++++++++++++++++++ arch/arm/mach-mediatek/Kconfig | 10 ++ arch/arm/mach-mediatek/Makefile | 1 + arch/arm/mach-mediatek/mt8516/Makefile | 3 + arch/arm/mach-mediatek/mt8516/init.c | 112 +++++++++++++++++++ 5 files changed, 268 insertions(+) create mode 100644 arch/arm/dts/mt8516.dtsi create mode 100644 arch/arm/mach-mediatek/mt8516/Makefile create mode 100644 arch/arm/mach-mediatek/mt8516/init.c
diff --git a/arch/arm/dts/mt8516.dtsi b/arch/arm/dts/mt8516.dtsi new file mode 100644 index 0000000000..72808c5757 --- /dev/null +++ b/arch/arm/dts/mt8516.dtsi @@ -0,0 +1,142 @@ +/* + * Copyright (C) 2018 BayLibre, SAS + * Author: Fabien Parent fparent@baylibre.com + * + * SPDX-License-Identifier: (GPL-2.0 OR MIT) + */ + +#include <dt-bindings/clock/mt8516-clk.h> +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/interrupt-controller/arm-gic.h> + +/ { + compatible = "mediatek,mt8516"; + interrupt-parent = <&sysirq>; + #address-cells = <1>; + #size-cells = <1>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + enable-method = "mediatek,mt8516-smp"; + + cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a35"; + reg = <0x0>; + clock-frequency = <1300000000>; + }; + + cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a35"; + reg = <0x1>; + clock-frequency = <1300000000>; + }; + + cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a35"; + reg = <0x2>; + clock-frequency = <1300000000>; + }; + + cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a35"; + reg = <0x3>; + clock-frequency = <1300000000>; + }; + }; + + topckgen: clock-controller@10000000 { + compatible = "mediatek,mt8516-topckgen"; + reg = <0x10000000 0x1000>; + #clock-cells = <1>; + u-boot,dm-pre-reloc; + }; + + topckgen_cg: clock-controller-cg@10000000 { + compatible = "mediatek,mt8516-topckgen-cg"; + reg = <0x10000000 0x1000>; + #clock-cells = <1>; + u-boot,dm-pre-reloc; + }; + + infracfg: clock-controller@10001000 { + compatible = "mediatek,mt8516-infracfg"; + reg = <0x10001000 0x1000>; + #clock-cells = <1>; + u-boot,dm-pre-reloc; + }; + + apmixedsys: clock-controller@10018000 { + compatible = "mediatek,mt8516-apmixedsys"; + reg = <0x10018000 0x710>; + #clock-cells = <1>; + u-boot,dm-pre-reloc; + }; + + gic: interrupt-controller@10310000 { + compatible = "arm,gic-400"; + interrupt-controller; + #interrupt-cells = <3>; + interrupt-parent = <&gic>; + reg = <0x10310000 0x1000>, + <0x10320000 0x1000>, + <0x10340000 0x2000>, + <0x10360000 0x2000>; + interrupts = <GIC_PPI 9 + (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>; + }; + + sysirq: interrupt-controller@10200620 { + compatible = "mediatek,sysirq"; + interrupt-controller; + #interrupt-cells = <3>; + interrupt-parent = <&gic>; + reg = <0x10200620 0x20>; + }; + + watchdog: watchdog@10007000 { + compatible = "mediatek,wdt"; + reg = <0x10007000 0x1000>; + interrupts = <GIC_SPI 198 IRQ_TYPE_EDGE_FALLING>; + #reset-cells = <1>; + status = "disabled"; + }; + + pinctrl: pinctrl@10005000 { + compatible = "mediatek,mt8516-pinctrl"; + reg = <0x10005000 0x1000>; + + gpio: gpio-controller { + gpio-controller; + #gpio-cells = <2>; + }; + }; + + mmc0: mmc@11120000 { + compatible = "mediatek,mt8516-mmc"; + reg = <0x11120000 0x1000>; + interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_LOW>; + clocks = <&topckgen_cg CLK_TOP_MSDC0>, + <&topckgen CLK_TOP_AHB_INFRA_SEL>, + <&topckgen_cg CLK_TOP_MSDC0_INFRA>; + clock-names = "source", "hclk", "source_cg"; + status = "disabled"; + }; + + uart0: serial@11005000 { + compatible = "mediatek,hsuart"; + reg = <0x11005000 0x1000>; + reg-shift = <2>; + interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_LOW>; + clocks = <&topckgen CLK_TOP_UART0_SEL>, + <&topckgen_cg CLK_TOP_UART0>; + clock-names = "baud","bus"; + status = "disabled"; + u-boot,dm-pre-reloc; + }; +}; diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach-mediatek/Kconfig index 7a733e95df..b5e91d4a7d 100644 --- a/arch/arm/mach-mediatek/Kconfig +++ b/arch/arm/mach-mediatek/Kconfig @@ -31,6 +31,16 @@ config TARGET_MT7629 including DDR3, crypto engine, 3x3 11n/ac Wi-Fi, Gigabit Ethernet, switch, USB3.0, PCIe, UART, SPI, I2C and PWM.
+config TARGET_MT8516 + bool "MediaTek MT8516 SoC" + select ARM64 + select ARCH_MISC_INIT + help + The MediaTek MT8516 is a ARM64-based SoC with a quad-core Cortex-A35. + including UART, SPI, USB2.0 and OTG, SD and MMC cards, NAND, PWM, + Ethernet, IR TX/RX, I2C, I2S, S/PDIF, and built-in Wi-Fi / Bluetooth combo + chip and several DDR3 and DDR4 options. + endchoice
source "board/mediatek/mt7623/Kconfig" diff --git a/arch/arm/mach-mediatek/Makefile b/arch/arm/mach-mediatek/Makefile index b5d3a379bc..ea414dc407 100644 --- a/arch/arm/mach-mediatek/Makefile +++ b/arch/arm/mach-mediatek/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_SPL_BUILD) += spl.o
obj-$(CONFIG_TARGET_MT7623) += mt7623/ obj-$(CONFIG_TARGET_MT7629) += mt7629/ +obj-$(CONFIG_TARGET_MT8516) += mt8516/ diff --git a/arch/arm/mach-mediatek/mt8516/Makefile b/arch/arm/mach-mediatek/mt8516/Makefile new file mode 100644 index 0000000000..886ab7e4eb --- /dev/null +++ b/arch/arm/mach-mediatek/mt8516/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-y += init.o diff --git a/arch/arm/mach-mediatek/mt8516/init.c b/arch/arm/mach-mediatek/mt8516/init.c new file mode 100644 index 0000000000..2dbd4369af --- /dev/null +++ b/arch/arm/mach-mediatek/mt8516/init.c @@ -0,0 +1,112 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 MediaTek Inc. + * Copyright (C) 2018 BayLibre, SAS + * Author: Fabien Parent fparent@baylibre.com + */ + +#include <clk.h> +#include <common.h> +#include <dm.h> +#include <fdtdec.h> +#include <ram.h> +#include <asm/arch/misc.h> +#include <asm/armv8/mmu.h> +#include <asm/sections.h> +#include <dm/uclass.h> +#include <linux/io.h> +#include <dt-bindings/clock/mt8516-clk.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define WDOG_SWRST 0x10007014 +#define WDOG_SWRST_KEY 0x1209 + +int dram_init(void) +{ + int ret; + + ret = fdtdec_setup_memory_banksize(); + if (ret) + return ret; + + return fdtdec_setup_mem_size_base(); +} + +int mtk_pll_early_init(void) +{ + unsigned long pll_rates[] = { + [CLK_APMIXED_ARMPLL] = 1300000000, + [CLK_APMIXED_MAINPLL] = 1501000000, + [CLK_APMIXED_UNIVPLL] = 1248000000, + [CLK_APMIXED_MMPLL] = 380000000, + }; + struct udevice *dev; + int ret, i; + + ret = uclass_get_device_by_driver(UCLASS_CLK, + DM_GET_DRIVER(mtk_clk_apmixedsys), &dev); + if (ret) + return ret; + + /* configure default rate then enable apmixedsys */ + for (i = 0; i < ARRAY_SIZE(pll_rates); i++) { + struct clk clk = { .id = i, .dev = dev }; + + ret = clk_set_rate(&clk, pll_rates[i]); + if (ret) + return ret; + + ret = clk_enable(&clk); + if (ret) + return ret; + } + + return 0; +} + +int mtk_soc_early_init(void) +{ + int ret; + + /* initialize early clocks */ + ret = mtk_pll_early_init(); + if (ret) + return ret; + + return 0; +} + +void reset_cpu(ulong addr) +{ + while (1) { + writel(WDOG_SWRST_KEY, WDOG_SWRST); + mdelay(5); + } +} + +int print_cpuinfo(void) +{ + printf("CPU: MediaTek MT8516\n"); + return 0; +} + +static struct mm_region mt8516_mem_map[] = { + { + /* DDR */ + .virt = 0x40000000UL, + .phys = 0x40000000UL, + .size = 0x20000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE, + }, { + .virt = 0x00000000UL, + .phys = 0x00000000UL, + .size = 0x20000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | + PTE_BLOCK_NON_SHARE | + PTE_BLOCK_PXN | PTE_BLOCK_UXN + }, { + 0, + } +}; +struct mm_region *mem_map = mt8516_mem_map;