* [PATCH 1/5] MIPS: xburst: add JZ4770 SoC support
2015-04-10 23:22 [PATCH 0/5] MIPS: xburst: add initial JZ4770 SoC support Antony Pavlov
@ 2015-04-10 23:22 ` Antony Pavlov
2015-04-10 23:22 ` [PATCH 2/5] MIPS: xburst: debug_ll: add JZ4770 support Antony Pavlov
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Antony Pavlov @ 2015-04-10 23:22 UTC (permalink / raw)
To: barebox
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
arch/mips/dts/jz4770.dtsi | 90 +++++++++++++++++++++++++++++++++++++++++++
arch/mips/include/asm/cpu.h | 1 +
arch/mips/lib/cpu-probe.c | 1 +
arch/mips/mach-xburst/Kconfig | 6 +++
4 files changed, 98 insertions(+)
diff --git a/arch/mips/dts/jz4770.dtsi b/arch/mips/dts/jz4770.dtsi
new file mode 100644
index 0000000..3823d9a
--- /dev/null
+++ b/arch/mips/dts/jz4770.dtsi
@@ -0,0 +1,90 @@
+#include "skeleton.dtsi"
+
+/ {
+ soc {
+ model = "Ingenic JZ4770";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ ranges = <>;
+
+ wdt: wdt@10002000 {
+ compatible = "ingenic,jz4740-wdt";
+ reg = <0x10002000 0x10>;
+ };
+
+ uart0: serial@10030000 {
+ compatible = "ingenic,jz4740-uart";
+ reg = <0x10030000 0x100>;
+ reg-shift = <2>;
+ clock-frequency = <12000000>;
+ status = "disabled";
+ };
+
+ uart1: serial@10031000 {
+ compatible = "ingenic,jz4740-uart";
+ reg = <0x10031000 0x100>;
+ reg-shift = <2>;
+ clock-frequency = <12000000>;
+ status = "disabled";
+ };
+
+ uart2: serial@10032000 {
+ compatible = "ingenic,jz4740-uart";
+ reg = <0x10032000 0x100>;
+ reg-shift = <2>;
+ clock-frequency = <12000000>;
+ status = "disabled";
+ };
+
+ uart3: serial@10033000 {
+ compatible = "ingenic,jz4740-uart";
+ reg = <0x10033000 0x100>;
+ reg-shift = <2>;
+ clock-frequency = <12000000>;
+ status = "disabled";
+ };
+
+ gpio0: gpio@10010000 {
+ compatible = "ingenic,jz4740-gpio";
+ gpio-controller;
+ reg = <0x10010000 0x100>;
+ #gpio-cells = <2>;
+ };
+
+ gpio1: gpio@10010100 {
+ compatible = "ingenic,jz4740-gpio";
+ gpio-controller;
+ reg = <0x10010100 0x100>;
+ #gpio-cells = <2>;
+ };
+
+ gpio2: gpio@10010200 {
+ compatible = "ingenic,jz4740-gpio";
+ gpio-controller;
+ reg = <0x10010200 0x100>;
+ #gpio-cells = <2>;
+ };
+
+ gpio3: gpio@10010300 {
+ compatible = "ingenic,jz4740-gpio";
+ gpio-controller;
+ reg = <0x10010300 0x100>;
+ #gpio-cells = <2>;
+ };
+
+ gpio4: gpio@10010400 {
+ compatible = "ingenic,jz4740-gpio";
+ gpio-controller;
+ reg = <0x10010400 0x100>;
+ #gpio-cells = <2>;
+ };
+
+ gpio5: gpio@10010500 {
+ compatible = "ingenic,jz4740-gpio";
+ gpio-controller;
+ reg = <0x10010500 0x100>;
+ #gpio-cells = <2>;
+ };
+ };
+};
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 572cabb..02a4446 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -27,6 +27,7 @@
#define PRID_COMP_MIPS 0x010000
#define PRID_COMP_BROADCOM 0x020000
#define PRID_COMP_INGENIC 0xd00000
+#define PRID_COMP_INGENIC_JZ4770 0xd10000
#define PRID_COMP_INGENIC2 0xe10000
/*
diff --git a/arch/mips/lib/cpu-probe.c b/arch/mips/lib/cpu-probe.c
index 4622bcd..13f9586 100644
--- a/arch/mips/lib/cpu-probe.c
+++ b/arch/mips/lib/cpu-probe.c
@@ -158,6 +158,7 @@ void cpu_probe(void)
cpu_probe_broadcom(c);
break;
case PRID_COMP_INGENIC:
+ case PRID_COMP_INGENIC_JZ4770:
case PRID_COMP_INGENIC2:
cpu_probe_ingenic(c);
break;
diff --git a/arch/mips/mach-xburst/Kconfig b/arch/mips/mach-xburst/Kconfig
index 2598c41..1fadf3f 100644
--- a/arch/mips/mach-xburst/Kconfig
+++ b/arch/mips/mach-xburst/Kconfig
@@ -10,6 +10,12 @@ config CPU_JZ4755
select WATCHDOG
select WATCHDOG_JZ4740
+config CPU_JZ4770
+ bool
+ select SYS_HAS_CPU_MIPS32_R2
+ select WATCHDOG
+ select WATCHDOG_JZ4740
+
config CPU_JZ4780
bool
select SYS_HAS_CPU_MIPS32_R2
--
2.1.4
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^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH 2/5] MIPS: xburst: debug_ll: add JZ4770 support
2015-04-10 23:22 [PATCH 0/5] MIPS: xburst: add initial JZ4770 SoC support Antony Pavlov
2015-04-10 23:22 ` [PATCH 1/5] MIPS: xburst: add " Antony Pavlov
@ 2015-04-10 23:22 ` Antony Pavlov
2015-04-10 23:22 ` [PATCH 3/5] MIPS: xburst: add Ainol Novo7 Paladin support Antony Pavlov
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Antony Pavlov @ 2015-04-10 23:22 UTC (permalink / raw)
To: barebox
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
arch/mips/mach-xburst/Kconfig | 8 ++--
.../mach-xburst/include/mach/debug_ll_jz4770.h | 47 ++++++++++++++++++++++
arch/mips/mach-xburst/include/mach/jz4770.h | 25 ++++++++++++
3 files changed, 76 insertions(+), 4 deletions(-)
diff --git a/arch/mips/mach-xburst/Kconfig b/arch/mips/mach-xburst/Kconfig
index 1fadf3f..3623d1a 100644
--- a/arch/mips/mach-xburst/Kconfig
+++ b/arch/mips/mach-xburst/Kconfig
@@ -41,19 +41,19 @@ choice
prompt "DEBUG_LL port"
config JZ47XX_DEBUG_LL_UART0
- depends on CPU_JZ4755 || CPU_JZ4780
+ depends on CPU_JZ4755 || CPU_JZ4770 || CPU_JZ4780
bool "UART0"
config JZ47XX_DEBUG_LL_UART1
- depends on CPU_JZ4755 || CPU_JZ4780
+ depends on CPU_JZ4755 || CPU_JZ4770 || CPU_JZ4780
bool "UART1"
config JZ47XX_DEBUG_LL_UART2
- depends on CPU_JZ4755 || CPU_JZ4780
+ depends on CPU_JZ4755 || CPU_JZ4770 || CPU_JZ4780
bool "UART2"
config JZ47XX_DEBUG_LL_UART3
- depends on CPU_JZ4780
+ depends on CPU_JZ4770 || CPU_JZ4780
bool "UART3"
config JZ47XX_DEBUG_LL_UART4
diff --git a/arch/mips/mach-xburst/include/mach/debug_ll_jz4770.h b/arch/mips/mach-xburst/include/mach/debug_ll_jz4770.h
new file mode 100644
index 0000000..79d72a0
--- /dev/null
+++ b/arch/mips/mach-xburst/include/mach/debug_ll_jz4770.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2015 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * This file is part of barebox.
+ * See file CREDITS for list of people who contributed to this project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __INCLUDE_DEBUG_LL_JZ4770_H__
+#define __INCLUDE_DEBUG_LL_JZ4770_H__
+
+#include <mach/jz4770.h>
+
+#ifdef CONFIG_JZ47XX_DEBUG_LL_UART0
+#define DEBUG_LL_UART_ADDR JZ4770_UART0_BASE
+#endif
+
+#ifdef CONFIG_JZ47XX_DEBUG_LL_UART1
+#define DEBUG_LL_UART_ADDR JZ4770_UART1_BASE
+#endif
+
+#ifdef CONFIG_JZ47XX_DEBUG_LL_UART2
+#define DEBUG_LL_UART_ADDR JZ4770_UART2_BASE
+#endif
+
+#ifdef CONFIG_JZ47XX_DEBUG_LL_UART3
+#define DEBUG_LL_UART_ADDR JZ4770_UART3_BASE
+#endif
+
+#define DEBUG_LL_UART_SHIFT 2
+
+#ifndef DEBUG_LL_UART_CLK
+#define DEBUG_LL_UART_CLK (12000000 / 16)
+#endif
+#define DEBUG_LL_UART_BPS CONFIG_BAUDRATE
+#define DEBUG_LL_UART_DIVISOR (DEBUG_LL_UART_CLK / DEBUG_LL_UART_BPS)
+
+#endif /* __INCLUDE_DEBUG_LL_JZ4770_H__ */
diff --git a/arch/mips/mach-xburst/include/mach/jz4770.h b/arch/mips/mach-xburst/include/mach/jz4770.h
new file mode 100644
index 0000000..161c1af
--- /dev/null
+++ b/arch/mips/mach-xburst/include/mach/jz4770.h
@@ -0,0 +1,25 @@
+/*
+ * JZ4770 SoC definitions
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __MIPS_ASM_MACH_JZ4770_JZ4770_H__
+#define __MIPS_ASM_MACH_JZ4770_JZ4770_H__
+
+/* APB bus devices */
+#define JZ4770_UART0_BASE 0xb0030000
+#define JZ4770_UART1_BASE 0xb0031000
+#define JZ4770_UART2_BASE 0xb0032000
+#define JZ4770_UART3_BASE 0xb0033000
+
+#endif /* __MIPS_ASM_MACH_JZ4770_JZ4770_H__ */
--
2.1.4
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^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH 3/5] MIPS: xburst: add Ainol Novo7 Paladin support
2015-04-10 23:22 [PATCH 0/5] MIPS: xburst: add initial JZ4770 SoC support Antony Pavlov
2015-04-10 23:22 ` [PATCH 1/5] MIPS: xburst: add " Antony Pavlov
2015-04-10 23:22 ` [PATCH 2/5] MIPS: xburst: debug_ll: add JZ4770 support Antony Pavlov
@ 2015-04-10 23:22 ` Antony Pavlov
2015-04-10 23:23 ` [PATCH 4/5] MIPS: add ainol-novo7-paladin_defconfig Antony Pavlov
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Antony Pavlov @ 2015-04-10 23:22 UTC (permalink / raw)
To: barebox
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
arch/mips/Makefile | 1 +
arch/mips/boards/ainol-novo7-paladin/Makefile | 1 +
arch/mips/boards/ainol-novo7-paladin/board.c | 27 +++++++++++++++++
.../ainol-novo7-paladin/include/board/debug_ll.h | 23 +++++++++++++++
arch/mips/dts/ainol-novo7-paladin.dts | 34 ++++++++++++++++++++++
arch/mips/mach-xburst/Kconfig | 4 +++
6 files changed, 90 insertions(+)
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 6ef2bf7..8478aa3 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -88,6 +88,7 @@ machine-$(CONFIG_MACH_MIPS_LOONGSON) := loongson
board-$(CONFIG_BOARD_LOONGSON_TECH_LS1B) := loongson-ls1b
machine-$(CONFIG_MACH_MIPS_XBURST) := xburst
+board-$(CONFIG_BOARD_AINOL_NOVO7_PALADIN) := ainol-novo7-paladin
board-$(CONFIG_BOARD_RZX50) := ritmix-rzx50
board-$(CONFIG_BOARD_CI20) := img-ci20
diff --git a/arch/mips/boards/ainol-novo7-paladin/Makefile b/arch/mips/boards/ainol-novo7-paladin/Makefile
new file mode 100644
index 0000000..dcfc293
--- /dev/null
+++ b/arch/mips/boards/ainol-novo7-paladin/Makefile
@@ -0,0 +1 @@
+obj-y += board.o
diff --git a/arch/mips/boards/ainol-novo7-paladin/board.c b/arch/mips/boards/ainol-novo7-paladin/board.c
new file mode 100644
index 0000000..61ee886
--- /dev/null
+++ b/arch/mips/boards/ainol-novo7-paladin/board.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2015 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * This file is part of barebox.
+ * See file CREDITS for list of people who contributed to this project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <common.h>
+#include <init.h>
+
+static int novo7_paladin_hostname_init(void)
+{
+ barebox_set_hostname("novo7-paladin");
+
+ return 0;
+}
+console_initcall(novo7_paladin_hostname_init);
diff --git a/arch/mips/boards/ainol-novo7-paladin/include/board/debug_ll.h b/arch/mips/boards/ainol-novo7-paladin/include/board/debug_ll.h
new file mode 100644
index 0000000..ef78f94
--- /dev/null
+++ b/arch/mips/boards/ainol-novo7-paladin/include/board/debug_ll.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2012, 2015 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * This file is part of barebox.
+ * See file CREDITS for list of people who contributed to this project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __INCLUDE_NOVO_7_PALADIN_BOARD_DEBUG_LL_H__
+#define __INCLUDE_NOVO_7_PALADIN_BOARD_DEBUG_LL_H__
+
+#include <mach/debug_ll_jz4770.h>
+
+#endif /* __INCLUDE_NOVO_7_PALADIN_BOARD_DEBUG_LL_H__ */
diff --git a/arch/mips/dts/ainol-novo7-paladin.dts b/arch/mips/dts/ainol-novo7-paladin.dts
new file mode 100644
index 0000000..cccd6ad
--- /dev/null
+++ b/arch/mips/dts/ainol-novo7-paladin.dts
@@ -0,0 +1,34 @@
+/*
+ * Ainol Novo7 Paladin device tree
+ *
+ * Copyright (c) 2015 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+/dts-v1/;
+
+#include "jz4770.dtsi"
+
+/ {
+ model = "Ainol Novo7 Paladin";
+ compatible = "ainol,novo7-paladin";
+
+ memory {
+ device_type = "memory";
+ reg = <0x0 0x10000000>;
+ };
+};
+
+&uart2 {
+ status = "okay";
+};
diff --git a/arch/mips/mach-xburst/Kconfig b/arch/mips/mach-xburst/Kconfig
index 3623d1a..a0ee4c6 100644
--- a/arch/mips/mach-xburst/Kconfig
+++ b/arch/mips/mach-xburst/Kconfig
@@ -30,6 +30,10 @@ config BOARD_RZX50
select HAS_POWEROFF
select CPU_JZ4755
+config BOARD_AINOL_NOVO7_PALADIN
+ bool "Ainol Novo7 Paladin"
+ select CPU_JZ4770
+
config BOARD_CI20
bool "Imagination Creator CI20"
select CPU_JZ4780
--
2.1.4
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^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH 4/5] MIPS: add ainol-novo7-paladin_defconfig
2015-04-10 23:22 [PATCH 0/5] MIPS: xburst: add initial JZ4770 SoC support Antony Pavlov
` (2 preceding siblings ...)
2015-04-10 23:22 ` [PATCH 3/5] MIPS: xburst: add Ainol Novo7 Paladin support Antony Pavlov
@ 2015-04-10 23:23 ` Antony Pavlov
2015-04-10 23:23 ` [PATCH 5/5] Documentation: add Ainol Novo7 Paladin board mini-howto Antony Pavlov
2015-04-13 8:02 ` [PATCH 0/5] MIPS: xburst: add initial JZ4770 SoC support Sascha Hauer
5 siblings, 0 replies; 7+ messages in thread
From: Antony Pavlov @ 2015-04-10 23:23 UTC (permalink / raw)
To: barebox
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
arch/mips/configs/ainol-novo7-paladin_defconfig | 42 +++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/arch/mips/configs/ainol-novo7-paladin_defconfig b/arch/mips/configs/ainol-novo7-paladin_defconfig
new file mode 100644
index 0000000..abb4a07
--- /dev/null
+++ b/arch/mips/configs/ainol-novo7-paladin_defconfig
@@ -0,0 +1,42 @@
+CONFIG_BUILTIN_DTB=y
+CONFIG_BUILTIN_DTB_NAME="ainol-novo7-paladin"
+CONFIG_MACH_MIPS_XBURST=y
+CONFIG_BOARD_AINOL_NOVO7_PALADIN=y
+CONFIG_JZ47XX_DEBUG_LL_UART2=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_BAUDRATE=57600
+CONFIG_GLOB=y
+CONFIG_HUSH_FANCY_PROMPT=y
+CONFIG_CMDLINE_EDITING=y
+CONFIG_AUTO_COMPLETE=y
+# CONFIG_DEFAULT_ENVIRONMENT is not set
+CONFIG_DEBUG_LL=y
+CONFIG_LONGHELP=y
+CONFIG_CMD_IOMEM=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_BOOTM_SHOW_TYPE=y
+CONFIG_CMD_BOOTM_VERBOSE=y
+CONFIG_CMD_BOOTM_INITRD=y
+CONFIG_CMD_BOOTM_OFTREE=y
+CONFIG_CMD_BOOTM_OFTREE_UIMAGE=y
+CONFIG_CMD_GO=y
+CONFIG_CMD_LOADB=y
+CONFIG_CMD_LOADS=y
+CONFIG_CMD_LOADY=y
+CONFIG_CMD_RESET=y
+CONFIG_CMD_SAVES=y
+CONFIG_CMD_UIMAGE=y
+CONFIG_CMD_GLOBAL=y
+CONFIG_CMD_FILETYPE=y
+CONFIG_CMD_MD5SUM=y
+CONFIG_CMD_SLEEP=y
+CONFIG_CMD_EDIT=y
+CONFIG_CMD_GPIO=y
+CONFIG_OFDEVICE=y
+# CONFIG_SPI is not set
+CONFIG_CLOCKSOURCE_DUMMY_RATE=16000
+CONFIG_GPIO_JZ4740=y
+# CONFIG_PINCTRL is not set
+CONFIG_SHA1=y
+CONFIG_SHA224=y
+CONFIG_SHA256=y
--
2.1.4
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^ permalink raw reply [flat|nested] 7+ messages in thread* [PATCH 5/5] Documentation: add Ainol Novo7 Paladin board mini-howto
2015-04-10 23:22 [PATCH 0/5] MIPS: xburst: add initial JZ4770 SoC support Antony Pavlov
` (3 preceding siblings ...)
2015-04-10 23:23 ` [PATCH 4/5] MIPS: add ainol-novo7-paladin_defconfig Antony Pavlov
@ 2015-04-10 23:23 ` Antony Pavlov
2015-04-13 8:02 ` [PATCH 0/5] MIPS: xburst: add initial JZ4770 SoC support Sascha Hauer
5 siblings, 0 replies; 7+ messages in thread
From: Antony Pavlov @ 2015-04-10 23:23 UTC (permalink / raw)
To: barebox
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
Documentation/boards/mips/ainol-novo7-paladin.rst | 45 +++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/Documentation/boards/mips/ainol-novo7-paladin.rst b/Documentation/boards/mips/ainol-novo7-paladin.rst
new file mode 100644
index 0000000..becfcd0
--- /dev/null
+++ b/Documentation/boards/mips/ainol-novo7-paladin.rst
@@ -0,0 +1,45 @@
+Ainol Novo7 Paladin
+===================
+
+The tablet has
+
+ * Ingenic JZ4770 SoC;
+ * 512 MiB DDR2 SDRAM;
+ * 8 GiB eMMC Flash Memory;
+ * UART;
+ * touchscreen (800x480);
+ * 1xUSB interface;
+ * buttons.
+
+The tablet uses X-Boot (Ingenic's not interactive U-Boot) as bootloader.
+
+Running barebox
+---------------
+
+ 1. Connect to the tablet's UART (see. http://a320.emulate.su/2012/05/14/mini-obzor-planshet-ainol-novo7-paladin-i-processor-jz4770/);
+
+ 2. Download and compile ingenic-boot tool for GCW0
+
+.. code-block:: none
+
+ $ git clone https://github.com/gcwnow/ingenic-boot
+ $ cd ingenic-boot
+ ingenic-boot$ make
+..
+
+ 3. Push & hold VOL- (GPIO 114 aka D18) while power on or reset (this selects USB boot mode by activating BOOTSEL1 signal);
+
+ 3. Upload and start barebox:
+
+.. code-block:: none
+
+ ingenic-boot$ sudo ./tool/down2ram.sh --config=gcw0_v11_ddr2_512mb --bin=${PATH_TO_BAREBOX_DIR}/barebox-flash-image --downto=0xa0800000 --runat=0xa0800000
+..
+
+Links
+-----
+
+ * http://www.ainol-novo.com/ainol-novo-7-paladin-first-android-4-0-tablet-pc.html
+ * ftp://ftp.ingenic.cn/SOC/JZ4770/JZ4770_DS.PDF
+ * https://github.com/IngenicSemiconductor/X-BOOT_NPM801
+ * https://github.com/gcwnow/UBIBoot
--
2.1.4
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^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH 0/5] MIPS: xburst: add initial JZ4770 SoC support
2015-04-10 23:22 [PATCH 0/5] MIPS: xburst: add initial JZ4770 SoC support Antony Pavlov
` (4 preceding siblings ...)
2015-04-10 23:23 ` [PATCH 5/5] Documentation: add Ainol Novo7 Paladin board mini-howto Antony Pavlov
@ 2015-04-13 8:02 ` Sascha Hauer
5 siblings, 0 replies; 7+ messages in thread
From: Sascha Hauer @ 2015-04-13 8:02 UTC (permalink / raw)
To: Antony Pavlov; +Cc: barebox
Hi Antony,
On Sat, Apr 11, 2015 at 02:22:56AM +0300, Antony Pavlov wrote:
> This patchseries adds initial JZ4770 SoC and Ainol Novo7 Paladin tablet support.
>
> The patchseries can be found on github:
> https://github.com/frantony/barebox/tree/20150411.jz4770
>
> The most notable problems and todos:
>
> * no PBL support; I have a PBL-enabled barebox version
> for the tablet, so barebox can be used as only bootloader for tablet.
> But this version is based on some dirty hacks
> e.g. it uses special pre-compiled X-Boot blob for bootstraping.
>
> Nowadays barebox mips PBL is written in assembler
> and I see no way to switch it to C. gcc-4.9.1 for mips has no __naked
> directive support, see this gcc output
>
> $ cat > 1.c <<EOF;
> int __attribute__((naked)) __attribute__((no_instrument_function)) main()
> {
> }
> EOF
>
> $ /opt/mips-2014.11/bin/mips-linux-gnu-gcc -o 1.o 1.c
> 1.c:2:1: warning: 'naked' attribute directive ignored [-Wattributes]
> {
> ^
>
> So for moving X-Boot bootstrap C-code into barebox PBL we have to convert it
> from C to assembler language :(
Is this really necessary? Only the entry point up to the point where you
setup the stack needs to be assembly, from then on C can be used.
>
> Please see JZ4770 bootstrap code in these repos:
>
> https://github.com/gcwnow/UBIBoot/
> https://github.com/IngenicSemiconductor/X-BOOT_NPM801
>
> * no clk support just now; we can easely steal it from linux
> JZ4780 support code (see wip-ci20-v4.1 branch in https://github.com/paulburton/linux);
>
> * no hardware clocksource support; this can be easely fixed,
> see linux JZ4780 support code again;
> also see https://github.com/frantony/barebox/blob/next.xburst.jz4770.20130511/arch/mips/mach-xburst/csrc-jz4770.c
Before merging this series I'd like to have clocksource support. Using
the dummy clocksource is fine during initial bringup, but I think merged
code should not depend on it.
Sascha
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