[PATCH 1/7] ARM: MediaTek: Add support for MediaTek MT8512 SoC

mingming lee
2019-12-23T09:28:23Z

Add support for MediaTek MT8512 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>
---
arch/arm/dts/mt8512.dtsi | 115 ++++++++++++++++++
arch/arm/mach-mediatek/Kconfig | 15 +++
arch/arm/mach-mediatek/Makefile | 1 +
arch/arm/mach-mediatek/mt8512/Makefile | 4 +
arch/arm/mach-mediatek/mt8512/init.c | 78 ++++++++++++
arch/arm/mach-mediatek/mt8512/lowlevel_init.S | 32 +++++
6 files changed, 245 insertions(+)
create mode 100644 arch/arm/dts/mt8512.dtsi
create mode 100644 arch/arm/mach-mediatek/mt8512/Makefile
create mode 100644 arch/arm/mach-mediatek/mt8512/init.c
create mode 100644 arch/arm/mach-mediatek/mt8512/lowlevel_init.S

diff --git a/arch/arm/dts/mt8512.dtsi b/arch/arm/dts/mt8512.dtsi
new file mode 100644
index 0000000000..543f068cb8
--- /dev/null
+++ b/arch/arm/dts/mt8512.dtsi
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2019 MediaTek Inc.
+ * Author: Mingming Lee <mingming.lee@mediatek.com>
+ *
+ */
+
+#include <dt-bindings/clock/mt8512-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,mt8512";
+ interrupt-parent = <&sysirq>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ topckgen: clock-controller at 10000000 {
+ compatible = "mediatek,mt8512-topckgen";
+ reg = <0x10000000 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ topckgen_cg: clock-controller-cg at 10000000 {
+ compatible = "mediatek,mt8512-topckgen-cg";
+ reg = <0x10000000 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ infracfg: clock-controller at 10001000 {
+ compatible = "mediatek,mt8512-infracfg";
+ reg = <0x10001000 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ gic: interrupt-controller at 0c000000 {
+ compatible = "arm,gic-v3";
+ #interrupt-cells = <3>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ reg = <0xc000000 0x40000>, /* GICD */
+ <0xc080000 0x200000>; /* GICR */
+ interrupts = <GIC_PPI 9
+ (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ sysirq: interrupt-controller at 10200a80 {
+ compatible = "mediatek,sysirq";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ interrupt-parent = <&gic>;
+ reg = <0x10200a80 0x50>;
+ };
+
+ timer0: apxgpt at 10008000 {
+ compatible = "mediatek,timer";
+ reg = <0x10008000 0x1000>;
+ interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_SYS_26M_D2>,
+ <&topckgen CLK_TOP_CLK32K>,
+ <&infracfg CLK_INFRA_APXGPT>;
+ clock-names = "clk13m",
+ "clk32k",
+ "bus";
+ };
+
+ watchdog0: watchdog at 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;
+ };
+
+ pinctrl: pinctrl at 10005000 {
+ compatible = "mediatek,mt8512-pinctrl";
+ reg = <0x10005000 0x1000>;
+ gpio: gpio-controller {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };
+
+ apmixedsys: clock-controller at 1000c000 {
+ compatible = "mediatek,mt8512-apmixedsys";
+ reg = <0x1000c000 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ mmc0: mmc at 11230000 {
+ compatible = "mediatek,mt8512-mmc";
+ reg = <0x11230000 0x1000>,
+ <0x11cd0000 0x1000>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_MSDC50_0_SEL>,
+ <&infracfg CLK_INFRA_MSDC0>,
+ <&infracfg CLK_INFRA_MSDC0_SRC>;
+ clock-names = "source", "hclk", "source_cg";
+ status = "disabled";
+ };
+
+ uart0: serial at 11002000 {
+ compatible = "mediatek,hsuart";
+ reg = <0x11002000 0x1000>;
+ interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_CLK26M>,
+ <&infracfg CLK_INFRA_UART0>;
+ clock-names = "baud", "bus";
+ status = "disabled";
+ };
+
+};
diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach-mediatek/Kconfig
index ad453a60c1..bca88b8db8 100644
--- a/arch/arm/mach-mediatek/Kconfig
+++ b/arch/arm/mach-mediatek/Kconfig
@@ -6,6 +6,10 @@ config SYS_SOC
config SYS_VENDOR
default "mediatek"

+config MT8512
+ bool "MediaTek MT8512 SoC"
+ default n
+
choice
prompt "MediaTek board select"

@@ -29,6 +33,16 @@ 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_MT8512
+ bool "MediaTek MT8512 M1 Board"
+ select ARM64
+ select MT8512
+ help
+ The MediaTek MT8512 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.
+
config TARGET_MT8516
bool "MediaTek MT8516 SoC"
select ARM64
@@ -51,6 +65,7 @@ endchoice

source "board/mediatek/mt7623/Kconfig"
source "board/mediatek/mt7629/Kconfig"
+source "board/mediatek/mt8512/Kconfig"
source "board/mediatek/mt8518/Kconfig"
source "board/mediatek/pumpkin/Kconfig"

diff --git a/arch/arm/mach-mediatek/Makefile b/arch/arm/mach-mediatek/Makefile
index b9b2355e03..6129ac88ab 100644
--- a/arch/arm/mach-mediatek/Makefile
+++ b/arch/arm/mach-mediatek/Makefile
@@ -3,6 +3,7 @@
obj-y += cpu.o
obj-$(CONFIG_SPL_BUILD) += spl.o

+obj-$(CONFIG_MT8512) += mt8512/
obj-$(CONFIG_TARGET_MT7623) += mt7623/
obj-$(CONFIG_TARGET_MT7629) += mt7629/
obj-$(CONFIG_TARGET_MT8516) += mt8516/
diff --git a/arch/arm/mach-mediatek/mt8512/Makefile b/arch/arm/mach-mediatek/mt8512/Makefile
new file mode 100644
index 0000000000..007eb4a367
--- /dev/null
+++ b/arch/arm/mach-mediatek/mt8512/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/mt8512/init.c b/arch/arm/mach-mediatek/mt8512/init.c
new file mode 100644
index 0000000000..a38b5d12d9
--- /dev/null
+++ b/arch/arm/mach-mediatek/mt8512/init.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Configuration for MediaTek MT8512 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 <wdt.h>
+#include <asm/arch/misc.h>
+#include <asm/armv8/mmu.h>
+#include <asm/sections.h>
+#include <dm/uclass.h>
+#include <dt-bindings/clock/mt8512-clk.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+ return fdtdec_setup_mem_size_base();
+}
+
+phys_size_t get_effective_memsize(void)
+{
+ /* limit stack below tee reserve memory */
+ return gd->ram_size - 6 * SZ_1M;
+}
+
+int dram_init_banksize(void)
+{
+ gd->bd->bi_dram[0].start = gd->ram_base;
+ gd->bd->bi_dram[0].size = get_effective_memsize();
+
+ return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+ struct udevice *watchdog_dev = NULL;
+
+ if (uclass_get_device_by_seq(UCLASS_WDT, 0, &watchdog_dev))
+ if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev))
+ psci_system_reset();
+
+ wdt_expire_now(watchdog_dev, 0);
+}
+
+int print_cpuinfo(void)
+{
+ debug("CPU: MediaTek MT8512\n");
+ return 0;
+}
+
+static struct mm_region mt8512_mem_map[] = {
+ {
+ /* DDR */
+ .virt = 0x40000000UL,
+ .phys = 0x40000000UL,
+ .size = 0x40000000UL,
+ .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 = mt8512_mem_map;
diff --git a/arch/arm/mach-mediatek/mt8512/lowlevel_init.S b/arch/arm/mach-mediatek/mt8512/lowlevel_init.S
new file mode 100644
index 0000000000..ad392120f4
--- /dev/null
+++ b/arch/arm/mach-mediatek/mt8512/lowlevel_init.S
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 MediaTek Inc.
+ * Author: Mingming Lee <mingming.lee@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
+*/
+.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
--
2.18.0