Add support for MediaTek MT8518 SoC. This include the file that will initialize the SoC after boot and its device tree.
Signed-off-by: mingming lee mingming.lee@mediatek.com --- Changes for v2: -drop unused 'device' in dtsi to keep it simple --- arch/arm/dts/mt8518.dtsi | 91 ++++++++++++++ arch/arm/mach-mediatek/Kconfig | 9 ++ arch/arm/mach-mediatek/Makefile | 1 + arch/arm/mach-mediatek/mt8518/Makefile | 4 + arch/arm/mach-mediatek/mt8518/init.c | 116 ++++++++++++++++++ arch/arm/mach-mediatek/mt8518/lowlevel_init.S | 59 +++++++++ 6 files changed, 280 insertions(+) create mode 100644 arch/arm/dts/mt8518.dtsi create mode 100644 arch/arm/mach-mediatek/mt8518/Makefile create mode 100644 arch/arm/mach-mediatek/mt8518/init.c create mode 100644 arch/arm/mach-mediatek/mt8518/lowlevel_init.S
diff --git a/arch/arm/dts/mt8518.dtsi b/arch/arm/dts/mt8518.dtsi new file mode 100644 index 0000000000..9f56122319 --- /dev/null +++ b/arch/arm/dts/mt8518.dtsi @@ -0,0 +1,91 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Copyright (C) 2019 MediaTek Inc. + * Author: Mingming Lee mingming.lee@mediatek.com + * + */ + +#include <dt-bindings/clock/mt8518-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,mt8518"; + interrupt-parent = <&sysirq>; + #address-cells = <1>; + #size-cells = <1>; + + + + topckgen: clock-controller@10000000 { + compatible = "mediatek,mt8518-topckgen"; + reg = <0x10000000 0x1000>; + #clock-cells = <1>; + }; + + gic: interrupt-controller@0c000000 { + compatible = "arm,gic-v3"; + #interrupt-cells = <3>; + interrupt-parent = <&gic>; + interrupt-controller; + reg = <0xc000000 0x40000>, /* GICD */ + <0xc100000 0x200000>; /* GICR */ + interrupts = <GIC_PPI 9 + (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>; + }; + + sysirq: interrupt-controller@10200a80 { + compatible = "mediatek,sysirq"; + interrupt-controller; + #interrupt-cells = <3>; + interrupt-parent = <&gic>; + reg = <0x10200a80 0x50>; + }; + + timer0: apxgpt@10008000 { + compatible = "mediatek,timer"; + reg = <0x10008000 0x1000>; + interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_LOW>; + clocks = <&topckgen CLK_TOP_CLK26M_D2>, + <&topckgen CLK_TOP_CLK32K>, + <&topckgen CLK_TOP_APXGPT>; + clock-names = "clk13m", + "clk32k", + "bus"; + }; + + watchdog0: watchdog@10007000 { + compatible = "mediatek,wdt"; + reg = <0x10007000 0x1000>; + interrupts = <GIC_SPI 190 IRQ_TYPE_EDGE_FALLING>; + #reset-cells = <1>; + status = "disabled"; + timeout-sec = <60>; + reset-on-timeout; + }; + + + + mmc0: mmc@11120000 { + compatible = "mediatek,mt8516-mmc"; + reg = <0x11120000 0x1000>; + interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_LOW>; + clocks = <&topckgen CLK_TOP_MSDC0>, + <&topckgen CLK_TOP_MSDC0>, + <&topckgen CLK_TOP_MSDC0_B>; + clock-names = "source", "hclk", "source_cg"; + status = "disabled"; + }; + + uart0: serial@11005000 { + compatible = "mediatek,hsuart"; + reg = <0x11005000 0x1000>; + interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_LOW>; + clocks = <&topckgen CLK_TOP_UART0_SEL>, + <&topckgen CLK_TOP_UART0>; + clock-names = "baud", "bus"; + status = "disabled"; + }; + +}; diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach-mediatek/Kconfig index 25ef7651f0..8e343c3182 100644 --- a/arch/arm/mach-mediatek/Kconfig +++ b/arch/arm/mach-mediatek/Kconfig @@ -38,6 +38,15 @@ config TARGET_MT8516 Ethernet, IR TX/RX, I2C, I2S, S/PDIF, and built-in Wi-Fi / Bluetooth combo chip and several DDR3 and DDR4 options.
+config TARGET_MT8518 + bool "MediaTek MT8518 SoC" + select ARM64 + help + The MediaTek MT8518 is a ARM64-based SoC with a quad-core Cortex-A53. + 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 ea414dc407..b9b2355e03 100644 --- a/arch/arm/mach-mediatek/Makefile +++ b/arch/arm/mach-mediatek/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_SPL_BUILD) += spl.o obj-$(CONFIG_TARGET_MT7623) += mt7623/ obj-$(CONFIG_TARGET_MT7629) += mt7629/ obj-$(CONFIG_TARGET_MT8516) += mt8516/ +obj-$(CONFIG_TARGET_MT8518) += mt8518/ diff --git a/arch/arm/mach-mediatek/mt8518/Makefile b/arch/arm/mach-mediatek/mt8518/Makefile new file mode 100644 index 0000000000..007eb4a367 --- /dev/null +++ b/arch/arm/mach-mediatek/mt8518/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-y += init.o +obj-y += lowlevel_init.o diff --git a/arch/arm/mach-mediatek/mt8518/init.c b/arch/arm/mach-mediatek/mt8518/init.c new file mode 100644 index 0000000000..419454f794 --- /dev/null +++ b/arch/arm/mach-mediatek/mt8518/init.c @@ -0,0 +1,116 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Configuration for MediaTek MT8518 SoC + * + * Copyright (C) 2019 MediaTek Inc. + * Author: Mingming Lee mingming.lee@mediatek.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 <dt-bindings/clock/mt8518-clk.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + int ret; + + ret = fdtdec_setup_memory_banksize(); + if (ret) + return ret; + + return fdtdec_setup_mem_size_base(); +} + +int dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = gd->ram_base; + gd->bd->bi_dram[0].size = gd->ram_size; + + return 0; +} + +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) +{ + psci_system_reset(); +} + +int print_cpuinfo(void) +{ + printf("CPU: MediaTek MT8518\n"); + return 0; +} + +static struct mm_region mt8518_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 = mt8518_mem_map; diff --git a/arch/arm/mach-mediatek/mt8518/lowlevel_init.S b/arch/arm/mach-mediatek/mt8518/lowlevel_init.S new file mode 100644 index 0000000000..3db4ee5b85 --- /dev/null +++ b/arch/arm/mach-mediatek/mt8518/lowlevel_init.S @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2019 MediaTek Inc. + * Author: Mingming Lee mingming.lee@mediatek.com + */ + +/*pre-loader LK to uboot argument Location*/ +.global BOOT_ARGUMENT_DRAM_SIZE +BOOT_ARGUMENT_DRAM_SIZE: + .word 0x00000000 + +.global BOOT_ARGUMENT_LINUX_ID +BOOT_ARGUMENT_LINUX_ID: + .word 0x00000000 + +.global BOOT_ARGUMENT_LOCATION +BOOT_ARGUMENT_LOCATION: + .word 0x00000000 + +/****************To instead what defined in start.S************************** + *void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3) __attribute__((weak)) + ****************************************************************************/ + +.globl save_boot_params +save_boot_params: + ldr x6, =BOOT_ARGUMENT_DRAM_SIZE + str x0, [x6] + ldr x6, =BOOT_ARGUMENT_LINUX_ID + str x1, [x6] + ldr x6, =BOOT_ARGUMENT_LOCATION + str x2, [x6] + b save_boot_params_ret + +/* + * Switch from AArch64 EL2 to AArch32 EL2 + * @param inputs: + * x0: argument, zero + * x1: machine nr + * x2: fdt address + * x3: input argument + * x4: kernel entry point + * @param outputs for secure firmware: + * x0: function id + * x1: kernel entry point + * x2: machine nr + * x3: fdt address +*/ +.global armv8_el2_to_aarch32 +armv8_el2_to_aarch32: + mov x3, x2 + mov x2, x1 + mov x1, x4 + mov x4, #0 + /* Define in src\bsp\trustzone\atf\v1.2\ */ + /* mt8xxx\plat\mediatek\common\sip_svc.h */ + /* MTK_SIP_KERNEL_BOOT_AARCH64 for U-BOOT-64 to KERNEL*/ + ldr x0, =0xC2000200 + SMC #0 + ret