[U-Boot] [PATCH 02/20] arm: MediaTek: add basic support for MT7629 boards
Ryder Lee
ryder.lee at mediatek.com
Tue Oct 2 06:13:39 UTC 2018
This adds a general board file based on MT7629 SoCs from MediaTek.
Apart from the generic parts (cpu) we add some low level init codes and
initialize the early clocks.
Signed-off-by: Ryder Lee <ryder.lee at mediatek.com>
Signed-off-by: Weijie Gao <weijie.gao at mediatek.com>
---
arch/arm/Kconfig | 14 +++
arch/arm/Makefile | 1 +
arch/arm/mach-mediatek/Kconfig | 24 +++++
arch/arm/mach-mediatek/Makefile | 6 ++
arch/arm/mach-mediatek/cpu.c | 34 ++++++
arch/arm/mach-mediatek/include/mach/chipid.h | 17 +++
arch/arm/mach-mediatek/include/mach/gpio.h | 9 ++
arch/arm/mach-mediatek/init.h | 11 ++
arch/arm/mach-mediatek/mt7629/Makefile | 4 +
arch/arm/mach-mediatek/mt7629/init.c | 142 ++++++++++++++++++++++++++
arch/arm/mach-mediatek/mt7629/lowlevel_init.S | 50 +++++++++
arch/arm/mach-mediatek/spl.c | 43 ++++++++
board/mediatek/mt7629/Kconfig | 17 +++
board/mediatek/mt7629/MAINTAINERS | 7 ++
board/mediatek/mt7629/Makefile | 4 +
board/mediatek/mt7629/mt7629_rfb.c | 16 +++
include/configs/mt7629.h | 68 ++++++++++++
17 files changed, 467 insertions(+)
create mode 100644 arch/arm/mach-mediatek/Kconfig
create mode 100644 arch/arm/mach-mediatek/Makefile
create mode 100644 arch/arm/mach-mediatek/cpu.c
create mode 100644 arch/arm/mach-mediatek/include/mach/chipid.h
create mode 100644 arch/arm/mach-mediatek/include/mach/gpio.h
create mode 100644 arch/arm/mach-mediatek/init.h
create mode 100644 arch/arm/mach-mediatek/mt7629/Makefile
create mode 100644 arch/arm/mach-mediatek/mt7629/init.c
create mode 100644 arch/arm/mach-mediatek/mt7629/lowlevel_init.S
create mode 100644 arch/arm/mach-mediatek/spl.c
create mode 100644 board/mediatek/mt7629/Kconfig
create mode 100644 board/mediatek/mt7629/MAINTAINERS
create mode 100644 board/mediatek/mt7629/Makefile
create mode 100644 board/mediatek/mt7629/mt7629_rfb.c
create mode 100644 include/configs/mt7629.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ccf2a84..eac03f0 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -668,6 +668,18 @@ config ARCH_MESON
targeted at media players and tablet computers. We currently
support the S905 (GXBaby) 64-bit SoC.
+config ARCH_MEDIATEK
+ bool "MediaTek SoCs"
+ select DM
+ select OF_CONTROL
+ select SPL_DM if SPL
+ select SPL_LIBCOMMON_SUPPORT if SPL
+ select SPL_LIBGENERIC_SUPPORT if SPL
+ select SPL_OF_CONTROL if SPL
+ select SUPPORT_SPL
+ help
+ Support for the MediaTek SoCs family.
+
config ARCH_MX8M
bool "NXP i.MX8M platform"
select ARM64
@@ -1423,6 +1435,8 @@ source "arch/arm/mach-rmobile/Kconfig"
source "arch/arm/mach-meson/Kconfig"
+source "arch/arm/mach-mediatek/Kconfig"
+
source "arch/arm/mach-qemu/Kconfig"
source "arch/arm/mach-rockchip/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 8f50560..ddb9618 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -62,6 +62,7 @@ machine-$(CONFIG_ARCH_K3) += k3
machine-$(CONFIG_ARCH_KEYSTONE) += keystone
# TODO: rename CONFIG_KIRKWOOD -> CONFIG_ARCH_KIRKWOOD
machine-$(CONFIG_KIRKWOOD) += kirkwood
+machine-$(CONFIG_ARCH_MEDIATEK) += mediatek
machine-$(CONFIG_ARCH_MESON) += meson
machine-$(CONFIG_ARCH_MVEBU) += mvebu
# TODO: rename CONFIG_TEGRA -> CONFIG_ARCH_TEGRA
diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach-mediatek/Kconfig
new file mode 100644
index 0000000..a932e70
--- /dev/null
+++ b/arch/arm/mach-mediatek/Kconfig
@@ -0,0 +1,24 @@
+if ARCH_MEDIATEK
+
+config SYS_SOC
+ default "mediatek"
+
+config SYS_VENDOR
+ default "mediatek"
+
+choice
+ prompt "MediaTek board select"
+
+config TARGET_MT7629
+ bool "MediaTek MT7629 SoC"
+ select CPU_V7A
+ select SPL
+ select ARCH_MISC_INIT
+ help
+ Support MediaTek MT7629 SoC.
+
+endchoice
+
+source "board/mediatek/mt7629/Kconfig"
+
+endif
diff --git a/arch/arm/mach-mediatek/Makefile b/arch/arm/mach-mediatek/Makefile
new file mode 100644
index 0000000..852d330
--- /dev/null
+++ b/arch/arm/mach-mediatek/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-y += cpu.o
+obj-$(CONFIG_SPL_BUILD) += spl.o
+
+obj-$(CONFIG_TARGET_MT7629) += mt7629/
diff --git a/arch/arm/mach-mediatek/cpu.c b/arch/arm/mach-mediatek/cpu.c
new file mode 100644
index 0000000..2bfeab7
--- /dev/null
+++ b/arch/arm/mach-mediatek/cpu.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/uclass-internal.h>
+#include <wdt.h>
+
+int arch_misc_init(void)
+{
+ struct udevice *wdt;
+ int ret;
+
+ ret = uclass_get_device(UCLASS_WDT, 0, &wdt);
+ if (!ret)
+ wdt_stop(wdt);
+
+ return 0;
+}
+
+int arch_cpu_init(void)
+{
+ icache_enable();
+
+ return 0;
+}
+
+void enable_caches(void)
+{
+ /* Enable D-cache. I-cache is already enabled in start.S */
+ dcache_enable();
+}
diff --git a/arch/arm/mach-mediatek/include/mach/chipid.h b/arch/arm/mach-mediatek/include/mach/chipid.h
new file mode 100644
index 0000000..a2bc0a6
--- /dev/null
+++ b/arch/arm/mach-mediatek/include/mach/chipid.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ */
+
+#ifndef __MEDIATEK_CHIPID_H_
+#define __MEDIATEK_CHIPID_H_
+
+#define VER_BASE 0x08000000
+#define VER_SIZE 0x10
+
+#define APHW_CODE 0x00
+#define APHW_SUBCODE 0x04
+#define APHW_VER 0x08
+#define APSW_VER 0x0c
+
+#endif /* __MEDIATEK_CHIPID_H_ */
diff --git a/arch/arm/mach-mediatek/include/mach/gpio.h b/arch/arm/mach-mediatek/include/mach/gpio.h
new file mode 100644
index 0000000..d302ab3
--- /dev/null
+++ b/arch/arm/mach-mediatek/include/mach/gpio.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ */
+
+#ifndef __MEDIATEK_GPIO_H_
+#define __MEDIATEK_GPIO_H_
+
+#endif /* __MEDIATEK_GPIO_H_ */
diff --git a/arch/arm/mach-mediatek/init.h b/arch/arm/mach-mediatek/init.h
new file mode 100644
index 0000000..1d896fb
--- /dev/null
+++ b/arch/arm/mach-mediatek/init.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ */
+
+#ifndef __MEDIATEK_INIT_H_
+#define __MEDIATEK_INIT_H_
+
+extern int mtk_soc_early_init(void);
+
+#endif /* __MEDIATEK_INIT_H_ */
diff --git a/arch/arm/mach-mediatek/mt7629/Makefile b/arch/arm/mach-mediatek/mt7629/Makefile
new file mode 100644
index 0000000..007eb4a
--- /dev/null
+++ b/arch/arm/mach-mediatek/mt7629/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/mt7629/init.c b/arch/arm/mach-mediatek/mt7629/init.c
new file mode 100644
index 0000000..00cf8af
--- /dev/null
+++ b/arch/arm/mach-mediatek/mt7629/init.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ * Author: Ryder Lee <ryder.lee at mediatek.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/uclass.h>
+#include <fdtdec.h>
+#include <ram.h>
+#include <clk.h>
+#include <linux/io.h>
+#include <mach/chipid.h>
+#include <asm/sections.h>
+
+#define L2_SHARE_CFG_MP0 0x7f0
+#define L2_SHARE_MODE_OFF BIT(8)
+
+#define BROM_SF_HDR_SIZE 0x920
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int mtk_pll_early_init(void)
+{
+ unsigned long pll_rates[] = {
+ [CLK_APMIXED_ARMPLL] = 1250000000,
+ [CLK_APMIXED_MAINPLL] = 1120000000,
+ [CLK_APMIXED_UNIV2PLL] = 1200000000,
+ [CLK_APMIXED_ETH1PLL] = 500000000,
+ [CLK_APMIXED_ETH2PLL] = 700000000,
+ [CLK_APMIXED_SGMIPLL] = 650000000,
+ };
+ 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;
+ }
+
+ /* setup mcu bus */
+ ret = uclass_get_device_by_driver(UCLASS_SYSCON,
+ DM_GET_DRIVER(mtk_mcucfg), &dev);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+int mtk_soc_early_init(void)
+{
+ struct udevice *dev;
+ int ret;
+
+ /* initialize early clocks */
+ ret = mtk_pll_early_init();
+ if (ret)
+ return ret;
+
+ ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+int mach_cpu_init(void)
+{
+ void __iomem *base;
+ int node;
+
+ node = fdt_node_offset_by_compatible(gd->fdt_blob, -1,
+ "mediatek,mt7629-mcucfg");
+ base = (void __iomem *)fdtdec_get_addr(gd->fdt_blob, node, "reg");
+ if (!base)
+ return -ENOENT;
+
+ /* disable L2C shared mode */
+ writel(L2_SHARE_MODE_OFF, base + L2_SHARE_CFG_MP0);
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ struct ram_info ram;
+ struct udevice *dev;
+ int ret;
+
+ ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+ if (ret)
+ return ret;
+
+ ret = ram_get_info(dev, &ram);
+ if (ret)
+ return ret;
+
+ debug("RAM init base=%lx, size=%x\n", ram.base, ram.size);
+
+ gd->ram_size = ram.size;
+
+ return 0;
+}
+
+int print_cpuinfo(void)
+{
+ void __iomem *chipid;
+ u32 hwcode, swver;
+
+ chipid = ioremap(VER_BASE, VER_SIZE);
+ hwcode = readl(chipid + APHW_CODE);
+ swver = readl(chipid + APSW_VER);
+
+ printf("CPU: MediaTek MT%04x E%d\n", hwcode, (swver & 0xf) + 1);
+
+ return 0;
+}
+
+unsigned long get_spl_size(void)
+{
+ ulong sz = (unsigned long)&_image_binary_end -
+ (unsigned long)&__image_copy_start;
+
+#if defined(CONFIG_SPL_SPI_SUPPORT) || defined(CONFIG_SPL_NOR_SUPPORT)
+ sz += BROM_SF_HDR_SIZE;
+#endif
+ return sz;
+}
diff --git a/arch/arm/mach-mediatek/mt7629/lowlevel_init.S b/arch/arm/mach-mediatek/mt7629/lowlevel_init.S
new file mode 100644
index 0000000..90dd4ea
--- /dev/null
+++ b/arch/arm/mach-mediatek/mt7629/lowlevel_init.S
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ */
+
+#include <linux/linkage.h>
+
+ENTRY(lowlevel_init)
+
+#ifndef CONFIG_SPL_BUILD
+ /* Return to U-Boot via saved link register */
+ mov pc, lr
+#else
+ /*
+ * Arch timer :
+ * set CNTFRQ = 20Mhz, set CNTVOFF = 0
+ */
+ movw r0, #0x2d00
+ movt r0, #0x131
+ mcr p15, 0, r0, c14, c0, 0
+
+ /* enable SMP bit */
+ mrc p15, 0, r0, c1, c0, 1
+ orr r0, r0, #0x40
+ mcr p15, 0, r0, c1, c0, 1
+
+ /* if MP core, handle secondary cores */
+ mrc p15, 0, r0, c0, c0, 5
+ ands r1, r0, #0x40000000
+ bne go @ Go if UP
+ ands r0, r0, #0x0f
+ beq go @ Go if core0 on primary core tile
+ b secondary
+
+go:
+ /* master CPU */
+ mov pc, lr
+
+secondary:
+ /* read slave CPU number into r0 firstly */
+ mrc p15, 0, r0, c0, c0, 5
+ and r0, r0, #0x0f
+
+loop:
+ dsb
+ isb
+ wfi @Zzz...
+ b loop
+#endif
+ENDPROC(lowlevel_init)
diff --git a/arch/arm/mach-mediatek/spl.c b/arch/arm/mach-mediatek/spl.c
new file mode 100644
index 0000000..9b3590f
--- /dev/null
+++ b/arch/arm/mach-mediatek/spl.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ * Author: Ryder Lee <ryder.lee at mediatek.com>
+ */
+
+#include <clk.h>
+#include <common.h>
+#include <spl.h>
+
+#include "init.h"
+
+void board_init_f(ulong dummy)
+{
+ int ret;
+
+ ret = spl_early_init();
+ if (ret)
+ hang();
+
+ /* enable console uart printing */
+ preloader_console_init();
+
+ /* soc early initialization */
+ ret = mtk_soc_early_init();
+ if (ret)
+ hang();
+}
+
+u32 spl_boot_device(void)
+{
+#if defined(CONFIG_SPL_SPI_SUPPORT)
+ return BOOT_DEVICE_SPI;
+#elif defined(CONFIG_SPL_MMC_SUPPORT)
+ return BOOT_DEVICE_MMC1;
+#elif defined(CONFIG_SPL_NAND_SUPPORT)
+ return BOOT_DEVICE_NAND;
+#elif defined(CONFIG_SPL_NOR_SUPPORT)
+ return BOOT_DEVICE_NOR;
+#else
+ return BOOT_DEVICE_NONE;
+#endif
+}
diff --git a/board/mediatek/mt7629/Kconfig b/board/mediatek/mt7629/Kconfig
new file mode 100644
index 0000000..6055164
--- /dev/null
+++ b/board/mediatek/mt7629/Kconfig
@@ -0,0 +1,17 @@
+if TARGET_MT7629
+
+config SYS_BOARD
+ default "mt7629"
+
+config SYS_CONFIG_NAME
+ default "mt7629"
+
+config MTK_SPL_PAD_SIZE
+ hex
+ default 0x10000
+
+config MTK_BROM_HEADER_INFO
+ string
+ default "media=nor"
+
+endif
diff --git a/board/mediatek/mt7629/MAINTAINERS b/board/mediatek/mt7629/MAINTAINERS
new file mode 100644
index 0000000..424f115
--- /dev/null
+++ b/board/mediatek/mt7629/MAINTAINERS
@@ -0,0 +1,7 @@
+MT7629
+M: Ryder Lee <ryder.lee at mediatek.com>
+M: Weijie Gao <weijie.gao at mediatek.com>
+S: Maintained
+F: board/mediatek/mt7629
+F: include/configs/mt7629.h
+F: configs/mt7629_rfb_defconfig
diff --git a/board/mediatek/mt7629/Makefile b/board/mediatek/mt7629/Makefile
new file mode 100644
index 0000000..aa8790c
--- /dev/null
+++ b/board/mediatek/mt7629/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += mt7629_rfb.o
+
diff --git a/board/mediatek/mt7629/mt7629_rfb.c b/board/mediatek/mt7629/mt7629_rfb.c
new file mode 100644
index 0000000..08468b5
--- /dev/null
+++ b/board/mediatek/mt7629/mt7629_rfb.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+ return 0;
+}
diff --git a/include/configs/mt7629.h b/include/configs/mt7629.h
new file mode 100644
index 0000000..ea979f0
--- /dev/null
+++ b/include/configs/mt7629.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Configuration for MediaTek MT7629 SoC
+ *
+ * Copyright (C) 2018 MediaTek Inc.
+ * Author: Ryder Lee <ryder.lee at mediatek.com>
+ */
+
+#ifndef __MT7629_H
+#define __MT7629_H
+
+#include <linux/sizes.h>
+
+#ifndef __ASSEMBLY__
+extern unsigned long get_spl_size(void);
+#endif
+
+/* Machine ID */
+#define CONFIG_MACH_TYPE 7629
+
+/* Miscellaneous configurable options */
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_CMDLINE_TAG
+
+#define CONFIG_SYS_MAXARGS 8
+#define CONFIG_SYS_BOOTM_LEN SZ_64M
+#define CONFIG_SYS_CBSIZE SZ_1K
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
+ sizeof(CONFIG_SYS_PROMPT) + 16)
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN SZ_4M
+
+/* Environment */
+#define CONFIG_ENV_SIZE SZ_4K
+/* Allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+
+/* Defines for SPL */
+#define CONFIG_SPL_STACK 0x106000
+#define CONFIG_SPL_TEXT_BASE 0x201000
+#define CONFIG_SPL_MAX_SIZE SZ_128K
+#define CONFIG_SPL_MAX_FOOTPRINT SZ_64K
+
+#define NOR_MMAP_ADDR 0x30000000
+#define CONFIG_SYS_SPI_U_BOOT_OFFS get_spl_size()
+#define CONFIG_SYS_UBOOT_BASE (NOR_MMAP_ADDR + get_spl_size())
+
+/* SPL -> Uboot */
+#define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_TEXT_BASE + SZ_2M - \
+ GENERATED_GBL_DATA_SIZE)
+
+/* UBoot -> Kernel */
+#define CONFIG_SYS_SPL_ARGS_ADDR 0x40000000
+#define CONFIG_LOADADDR 0x42007f1c
+#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
+
+/* Serial device */
+#define CONFIG_SYS_NS16550_CLK 40000000
+#define CONFIG_SYS_NS16550_MEM32
+#define CONFIG_BAUDRATE 115200
+
+/* DRAM */
+#define CONFIG_SYS_SDRAM_BASE 0x40000000
+
+#endif
--
1.9.1
More information about the U-Boot
mailing list