arm: mediatek: add support for MediaTek MT7981 SoC
authorWeijie Gao <weijie.gao@mediatek.com>
Fri, 9 Sep 2022 11:59:11 +0000 (19:59 +0800)
committerTom Rini <trini@konsulko.com>
Fri, 23 Sep 2022 19:09:15 +0000 (15:09 -0400)
This patch adds basic support for MediaTek MT7981 SoC.
This include the file that will initialize the SoC after boot and its
device tree.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
arch/arm/dts/mt7981.dtsi [new file with mode: 0644]
arch/arm/mach-mediatek/Kconfig
arch/arm/mach-mediatek/Makefile
arch/arm/mach-mediatek/mt7981/Makefile [new file with mode: 0644]
arch/arm/mach-mediatek/mt7981/init.c [new file with mode: 0644]
arch/arm/mach-mediatek/mt7981/lowlevel_init.S [new file with mode: 0644]

diff --git a/arch/arm/dts/mt7981.dtsi b/arch/arm/dts/mt7981.dtsi
new file mode 100644 (file)
index 0000000..3089371
--- /dev/null
@@ -0,0 +1,295 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/mt7981-clk.h>
+#include <dt-bindings/reset/mt7629-reset.h>
+#include <dt-bindings/pinctrl/mt65xx.h>
+
+/ {
+       compatible = "mediatek,mt7981";
+       interrupt-parent = <&gic>;
+       #address-cells = <1>;
+       #size-cells = <1>;
+       cpus {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               cpu0: cpu@0 {
+                       device_type = "cpu";
+                       compatible = "arm,cortex-a53";
+                       reg = <0x0>;
+                       mediatek,hwver = <&hwver>;
+               };
+               cpu1: cpu@1 {
+                       device_type = "cpu";
+                       compatible = "arm,cortex-a53";
+                       reg = <0x1>;
+                       mediatek,hwver = <&hwver>;
+               };
+       };
+
+       gpt_clk: gpt_dummy20m {
+               compatible = "fixed-clock";
+               clock-frequency = <13000000>;
+               #clock-cells = <0>;
+               u-boot,dm-pre-reloc;
+       };
+
+       hwver: hwver {
+               compatible = "mediatek,hwver", "syscon";
+               reg = <0x8000000 0x1000>;
+       };
+
+       timer {
+               compatible = "arm,armv8-timer";
+               interrupt-parent = <&gic>;
+               clock-frequency = <13000000>;
+               interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+                            <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+                            <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+                            <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+               arm,cpu-registers-not-fw-configured;
+       };
+
+       timer0: timer@10008000 {
+               compatible = "mediatek,mt7986-timer";
+               reg = <0x10008000 0x1000>;
+               interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&gpt_clk>;
+               clock-names = "gpt-clk";
+               u-boot,dm-pre-reloc;
+       };
+
+       watchdog: watchdog@1001c000 {
+               compatible = "mediatek,mt7986-wdt";
+               reg = <0x1001c000 0x1000>;
+               interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+               #reset-cells = <1>;
+               status = "disabled";
+       };
+
+       gic: interrupt-controller@c000000 {
+               compatible = "arm,gic-v3";
+               #interrupt-cells = <3>;
+               interrupt-parent = <&gic>;
+               interrupt-controller;
+               reg = <0x0c000000 0x40000>,  /* GICD */
+                     <0x0c080000 0x200000>; /* GICR */
+
+               interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+       };
+
+       fixed_plls: apmixedsys@1001e000 {
+               compatible = "mediatek,mt7981-fixed-plls";
+               reg = <0x1001e000 0x1000>;
+               #clock-cells = <1>;
+               u-boot,dm-pre-reloc;
+       };
+
+       topckgen: topckgen@1001b000 {
+               compatible = "mediatek,mt7981-topckgen";
+               reg = <0x1001b000 0x1000>;
+               clock-parent = <&fixed_plls>;
+               #clock-cells = <1>;
+               u-boot,dm-pre-reloc;
+       };
+
+       infracfg_ao: infracfg_ao@10001000 {
+               compatible = "mediatek,mt7981-infracfg_ao";
+               reg = <0x10001000 0x80>;
+               clock-parent = <&infracfg>;
+               #clock-cells = <1>;
+               u-boot,dm-pre-reloc;
+       };
+
+       infracfg: infracfg@10001000 {
+               compatible = "mediatek,mt7981-infracfg";
+               reg = <0x10001000 0x30>;
+               clock-parent = <&topckgen>;
+               #clock-cells = <1>;
+               u-boot,dm-pre-reloc;
+       };
+
+       pinctrl: pinctrl@11d00000 {
+               compatible = "mediatek,mt7981-pinctrl";
+               reg = <0x11d00000 0x1000>,
+                     <0x11c00000 0x1000>,
+                     <0x11c10000 0x1000>,
+                     <0x11d20000 0x1000>,
+                     <0x11e00000 0x1000>,
+                     <0x11e20000 0x1000>,
+                     <0x11f00000 0x1000>,
+                     <0x11f10000 0x1000>,
+                     <0x1000b000 0x1000>;
+               reg-names = "gpio_base", "iocfg_rt_base", "iocfg_rm_base",
+                           "iocfg_rb_base", "iocfg_lb_base", "iocfg_bl_base",
+                           "iocfg_tm_base", "iocfg_tl_base", "eint";
+               gpio: gpio-controller {
+                       gpio-controller;
+                       #gpio-cells = <2>;
+               };
+       };
+
+       pwm: pwm@10048000 {
+               compatible = "mediatek,mt7981-pwm";
+               reg = <0x10048000 0x1000>;
+               #clock-cells = <1>;
+               #pwm-cells = <2>;
+               interrupts = <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&infracfg CK_INFRA_PWM>,
+                        <&infracfg_ao CK_INFRA_PWM_BSEL>,
+                        <&infracfg_ao CK_INFRA_PWM1_CK>,
+                        <&infracfg_ao CK_INFRA_PWM2_CK>,
+                        /* FIXME */
+                        <&infracfg_ao CK_INFRA_PWM2_CK>;
+               assigned-clocks = <&topckgen CK_TOP_PWM_SEL>;
+               assigned-clock-parents = <&topckgen CK_TOP_CB_CKSQ_40M>;
+               clock-names = "top", "main", "pwm1", "pwm2", "pwm3";
+               status = "disabled";
+       };
+
+       uart0: serial@11002000 {
+               compatible = "mediatek,hsuart";
+               reg = <0x11002000 0x400>;
+               interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&infracfg_ao CK_INFRA_UART0_CK>;
+               assigned-clocks = <&topckgen CK_TOP_UART_SEL>,
+                                 <&infracfg_ao CK_INFRA_UART0_SEL>;
+               assigned-clock-parents = <&topckgen CK_TOP_CB_CKSQ_40M>,
+                                        <&infracfg CK_INFRA_UART>;
+               mediatek,force-highspeed;
+               status = "disabled";
+               u-boot,dm-pre-reloc;
+       };
+
+       uart1: serial@11003000 {
+               compatible = "mediatek,hsuart";
+               reg = <0x11003000 0x400>;
+               interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&infracfg_ao CK_INFRA_UART1_CK>;
+               assigned-clocks = <&topckgen CK_TOP_UART_SEL>,
+                                 <&infracfg_ao CK_INFRA_UART1_SEL>;
+               assigned-clock-parents = <&topckgen CK_TOP_CB_CKSQ_40M>,
+                                        <&infracfg CK_INFRA_UART>;
+               mediatek,force-highspeed;
+               status = "disabled";
+       };
+
+       uart2: serial@11004000 {
+               compatible = "mediatek,hsuart";
+               reg = <0x11004000 0x400>;
+               interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&infracfg_ao CK_INFRA_UART2_CK>;
+               assigned-clocks = <&topckgen CK_TOP_UART_SEL>,
+                                 <&infracfg_ao CK_INFRA_UART2_SEL>;
+               assigned-clock-parents = <&topckgen CK_TOP_CB_CKSQ_40M>,
+                                        <&infracfg CK_INFRA_UART>;
+               mediatek,force-highspeed;
+               status = "disabled";
+       };
+
+       snand: snand@11005000 {
+               compatible = "mediatek,mt7986-snand";
+               reg = <0x11005000 0x1000>,
+                     <0x11006000 0x1000>;
+               reg-names = "nfi", "ecc";
+               clocks = <&infracfg_ao CK_INFRA_SPINFI1_CK>,
+                        <&infracfg_ao CK_INFRA_NFI1_CK>,
+                        <&infracfg_ao CK_INFRA_NFI_HCK_CK>;
+               clock-names = "pad_clk", "nfi_clk", "nfi_hclk";
+               assigned-clocks = <&topckgen CK_TOP_SPINFI_SEL>,
+                                 <&topckgen CK_TOP_NFI1X_SEL>;
+               assigned-clock-parents = <&topckgen CK_TOP_CB_M_D8>,
+                                        <&topckgen CK_TOP_CB_M_D8>;
+               status = "disabled";
+       };
+
+       ethsys: syscon@15000000 {
+               compatible = "mediatek,mt7981-ethsys", "syscon";
+               reg = <0x15000000 0x1000>;
+               clock-parent = <&topckgen>;
+               #clock-cells = <1>;
+               #reset-cells = <1>;
+       };
+
+       eth: ethernet@15100000 {
+               compatible = "mediatek,mt7981-eth", "syscon";
+               reg = <0x15100000 0x20000>;
+               resets = <&ethsys ETHSYS_FE_RST>;
+               reset-names = "fe";
+               mediatek,ethsys = <&ethsys>;
+               mediatek,sgmiisys = <&sgmiisys0>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               status = "disabled";
+       };
+
+       sgmiisys0: syscon@10060000 {
+               compatible = "mediatek,mt7986-sgmiisys", "syscon";
+               reg = <0x10060000 0x1000>;
+               pn_swap;
+               #clock-cells = <1>;
+       };
+
+       sgmiisys1: syscon@10070000 {
+               compatible = "mediatek,mt7986-sgmiisys", "syscon";
+               reg = <0x10070000 0x1000>;
+               #clock-cells = <1>;
+       };
+
+       spi0: spi@1100a000 {
+               compatible = "mediatek,ipm-spi";
+               reg = <0x1100a000 0x100>;
+               clocks = <&infracfg_ao CK_INFRA_SPI0_CK>,
+                        <&topckgen CK_TOP_SPI_SEL>;
+               assigned-clocks = <&topckgen CK_TOP_SPI_SEL>,
+                                 <&infracfg CK_INFRA_SPI0_SEL>;
+               assigned-clock-parents = <&topckgen CK_TOP_CB_M_D2>,
+                                        <&topckgen CK_INFRA_ISPI0>;
+               clock-names = "sel-clk", "spi-clk";
+               interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+               status = "disabled";
+       };
+
+       spi1: spi@1100b000 {
+               compatible = "mediatek,ipm-spi";
+               reg = <0x1100b000 0x100>;
+               interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
+               status = "disabled";
+       };
+
+       spi2: spi@11009000 {
+               compatible = "mediatek,ipm-spi";
+               reg = <0x11009000 0x100>;
+               clocks = <&infracfg_ao CK_INFRA_SPI0_CK>,
+                        <&topckgen CK_TOP_SPI_SEL>;
+               assigned-clocks = <&topckgen CK_TOP_SPI_SEL>,
+                                 <&infracfg CK_INFRA_SPI0_SEL>;
+               assigned-clock-parents = <&topckgen CK_TOP_CB_M_D2>,
+                                        <&topckgen CK_INFRA_ISPI0>;
+               clock-names = "sel-clk", "spi-clk";
+               interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>;
+               status = "disabled";
+       };
+
+       mmc0: mmc@11230000 {
+               compatible = "mediatek,mt7981-mmc";
+               reg = <0x11230000 0x1000>,
+                     <0x11C20000 0x1000>;
+               interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&topckgen CK_TOP_EMMC_400M>,
+                        <&topckgen CK_TOP_EMMC_208M>,
+                        <&infracfg_ao CK_INFRA_MSDC_CK>;
+               assigned-clocks = <&topckgen CK_TOP_EMMC_400M_SEL>,
+                                 <&topckgen CK_TOP_EMMC_208M_SEL>;
+               assigned-clock-parents = <&topckgen CK_TOP_CB_NET2_D2>,
+                                        <&topckgen CK_TOP_CB_M_D2>;
+               clock-names = "source", "hclk", "source_cg";
+               status = "disabled";
+       };
+
+};
index 82fadeb..04aa2fd 100644 (file)
@@ -40,6 +40,15 @@ 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_MT7981
+       bool "MediaTek MT7981 SoC"
+       select ARM64
+       select CPU
+       help
+         The MediaTek MT7981 is a ARM64-based SoC with a dual-core Cortex-A53.
+         including UART, SPI, USB, NAND, SNFI, PWM, Gigabit Ethernet, I2C,
+          built-in Wi-Fi, and PCIe.
+
 config TARGET_MT7986
        bool "MediaTek MT7986 SoC"
        select ARM64
@@ -93,6 +102,7 @@ config SYS_BOARD
        default "mt7622" if TARGET_MT7622
        default "mt7623" if TARGET_MT7623
        default "mt7629" if TARGET_MT7629
+       default "mt7981" if TARGET_MT7981
        default "mt7986" if TARGET_MT7986
        default "mt8183" if TARGET_MT8183
        default "mt8512" if TARGET_MT8512
@@ -109,6 +119,7 @@ config SYS_CONFIG_NAME
        default "mt7622" if TARGET_MT7622
        default "mt7623" if TARGET_MT7623
        default "mt7629" if TARGET_MT7629
+       default "mt7981" if TARGET_MT7981
        default "mt7986" if TARGET_MT7986
        default "mt8183" if TARGET_MT8183
        default "mt8512" if TARGET_MT8512
@@ -124,7 +135,7 @@ config MTK_BROM_HEADER_INFO
        string
        default "media=nor" if TARGET_MT8518 || TARGET_MT8512 || TARGET_MT7629 || TARGET_MT7622
        default "media=emmc" if TARGET_MT8516 || TARGET_MT8365 || TARGET_MT8183
-       default "media=snand;nandinfo=2k+64" if TARGET_MT7986
+       default "media=snand;nandinfo=2k+64" if TARGET_MT7981 || TARGET_MT7986
        default "lk=1" if TARGET_MT7623
 
 endif
index fe5c3a8..fc85293 100644 (file)
@@ -7,6 +7,7 @@ obj-$(CONFIG_MT8512) += mt8512/
 obj-$(CONFIG_TARGET_MT7622) += mt7622/
 obj-$(CONFIG_TARGET_MT7623) += mt7623/
 obj-$(CONFIG_TARGET_MT7629) += mt7629/
+obj-$(CONFIG_TARGET_MT7981) += mt7981/
 obj-$(CONFIG_TARGET_MT7986) += mt7986/
 obj-$(CONFIG_TARGET_MT8183) += mt8183/
 obj-$(CONFIG_TARGET_MT8516) += mt8516/
diff --git a/arch/arm/mach-mediatek/mt7981/Makefile b/arch/arm/mach-mediatek/mt7981/Makefile
new file mode 100644 (file)
index 0000000..007eb4a
--- /dev/null
@@ -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/mt7981/init.c b/arch/arm/mach-mediatek/mt7981/init.c
new file mode 100644 (file)
index 0000000..4f77a3d
--- /dev/null
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+#include <init.h>
+#include <asm/armv8/mmu.h>
+#include <asm/system.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+       gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, SZ_2G);
+
+       return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+       psci_system_reset();
+}
+
+static struct mm_region mt7981_mem_map[] = {
+       {
+               /* DDR */
+               .virt = 0x40000000UL,
+               .phys = 0x40000000UL,
+               .size = 0x80000000UL,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE,
+       }, {
+               .virt = 0x00000000UL,
+               .phys = 0x00000000UL,
+               .size = 0x40000000UL,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+                        PTE_BLOCK_NON_SHARE |
+                        PTE_BLOCK_PXN | PTE_BLOCK_UXN
+       }, {
+               0,
+       }
+};
+
+struct mm_region *mem_map = mt7981_mem_map;
diff --git a/arch/arm/mach-mediatek/mt7981/lowlevel_init.S b/arch/arm/mach-mediatek/mt7981/lowlevel_init.S
new file mode 100644 (file)
index 0000000..85a1cea
--- /dev/null
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+/*
+ * 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
+ *
+ * [1] https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/tree/plat/mediatek/common/mtk_sip_svc.c
+*/
+
+.global armv8_el2_to_aarch32
+armv8_el2_to_aarch32:
+       mov     x3, x2
+       mov     x2, x1
+       mov     x1, x4
+       mov     x4, #0
+       ldr     x0, =0x82000200 /* MTK_SIP_KERNEL_BOOT_AARCH32 */
+       SMC     #0
+       ret