[PATCH v4 5/8] MIPS: ranchu: Add Ranchu as a new generic-based board

2017-08-18 Thread Aleksandar Markovic 
From: Miodrag Dinic 

Provide amendments to the Mips generic platform framework so that
the new generic-based board Ranchu can be chosen to be built.

Signed-off-by: Miodrag Dinic 
Signed-off-by: Goran Ferenc 
Signed-off-by: Aleksandar Markovic 
---
 MAINTAINERS   |  6 +++
 arch/mips/configs/generic/board-ranchu.config | 30 +++
 arch/mips/generic/Kconfig | 11 
 arch/mips/generic/Makefile|  1 +
 arch/mips/generic/board-ranchu.c  | 78 +++
 5 files changed, 126 insertions(+)
 create mode 100644 arch/mips/configs/generic/board-ranchu.config
 create mode 100644 arch/mips/generic/board-ranchu.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 6426875..03403c9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11063,6 +11063,12 @@ S: Maintained
 F: Documentation/blockdev/ramdisk.txt
 F: drivers/block/brd.c
 
+RANCHU VIRTUAL BOARD FOR MIPS
+M: Miodrag Dinic 
+L: linux-m...@linux-mips.org
+S: Supported
+F: arch/mips/generic/board-ranchu.c
+
 RANDOM NUMBER DRIVER
 M: "Theodore Ts'o" 
 S: Maintained
diff --git a/arch/mips/configs/generic/board-ranchu.config 
b/arch/mips/configs/generic/board-ranchu.config
new file mode 100644
index 000..fee9ad4
--- /dev/null
+++ b/arch/mips/configs/generic/board-ranchu.config
@@ -0,0 +1,30 @@
+CONFIG_VIRT_BOARD_RANCHU=y
+
+CONFIG_BATTERY_GOLDFISH=y
+CONFIG_FB=y
+CONFIG_FB_GOLDFISH=y
+CONFIG_GOLDFISH=y
+CONFIG_STAGING=y
+CONFIG_GOLDFISH_AUDIO=y
+CONFIG_GOLDFISH_PIC=y
+CONFIG_GOLDFISH_PIPE=y
+CONFIG_GOLDFISH_TTY=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_GOLDFISH=y
+
+CONFIG_INPUT_EVDEV=y
+CONFIG_INPUT_KEYBOARD=y
+CONFIG_KEYBOARD_GOLDFISH_EVENTS=y
+
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_POWER_RESET_SYSCON_POWEROFF=y
+
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
+CONFIG_NETDEVICES=y
+CONFIG_VIRTIO_NET=y
diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
index 51ffbba..fe1231d 100644
--- a/arch/mips/generic/Kconfig
+++ b/arch/mips/generic/Kconfig
@@ -36,4 +36,15 @@ config FIT_IMAGE_FDT_BOSTON
  enable this if you wish to boot on a MIPS Boston board, as it is
  expected by the bootloader.
 
+config VIRT_BOARD_RANCHU
+   bool "Ranchu platform for Android emulator"
+   select LEGACY_BOARDS
+   help
+ This enables support for the platform used by Android emulator.
+
+ Ranchu platform consists of a set of virtual devices. This platform
+ enables emulation of variety of virtual configurations while using
+ Android emulator. Android emulator is based on Qemu, and contains
+ the support for the same set of virtual devices.
+
 endif
diff --git a/arch/mips/generic/Makefile b/arch/mips/generic/Makefile
index 56b3ea5..14931f2 100644
--- a/arch/mips/generic/Makefile
+++ b/arch/mips/generic/Makefile
@@ -14,4 +14,5 @@ obj-y += proc.o
 
 obj-$(CONFIG_YAMON_DT_SHIM)+= yamon-dt.o
 obj-$(CONFIG_LEGACY_BOARD_SEAD3)   += board-sead3.o
+obj-$(CONFIG_VIRT_BOARD_RANCHU)+= board-ranchu.o
 obj-$(CONFIG_KEXEC)+= kexec.o
diff --git a/arch/mips/generic/board-ranchu.c b/arch/mips/generic/board-ranchu.c
new file mode 100644
index 000..500874d
--- /dev/null
+++ b/arch/mips/generic/board-ranchu.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2017 Imagination Technologies Ltd.
+ * Author: Miodrag Dinic 
+ *
+ * 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.
+ */
+
+#include 
+
+#include 
+#include 
+
+#define GOLDFISH_TIMER_LOW 0x00
+#define GOLDFISH_TIMER_HIGH0x04
+
+static __init uint64_t read_rtc_time(void __iomem *base)
+{
+   u64 time_low;
+   u64 time_high;
+
+   time_low = readl(base + GOLDFISH_TIMER_LOW);
+   time_high = readl(base + GOLDFISH_TIMER_HIGH);
+
+   return (time_high << 32) | time_low;
+}
+
+static __init unsigned int ranchu_measure_hpt_freq(void)
+{
+   u64 rtc_start, rtc_current, rtc_delta;
+   unsigned int start, count;
+   struct device_node *np;
+   void __iomem *rtc_base;
+
+   np = of_find_compatible_node(NULL, NULL, "google,goldfish-rtc");
+   if (!np)
+   panic("%s(): Failed to find 'google,goldfish-rtc' dt node!",
+ __func__);
+
+   rtc_base = of_iomap(np, 0);
+   if (!rtc_base)
+   panic("%s(): Failed to ioremap Goldfish RTC base!", __func__);
+
+   /*
+* poll the nanosecond resolution RTC

[PATCH v4 5/8] MIPS: ranchu: Add Ranchu as a new generic-based board

2017-08-18 Thread Aleksandar Markovic 
From: Miodrag Dinic 

Provide amendments to the Mips generic platform framework so that
the new generic-based board Ranchu can be chosen to be built.

Signed-off-by: Miodrag Dinic 
Signed-off-by: Goran Ferenc 
Signed-off-by: Aleksandar Markovic 
---
 MAINTAINERS   |  6 +++
 arch/mips/configs/generic/board-ranchu.config | 30 +++
 arch/mips/generic/Kconfig | 11 
 arch/mips/generic/Makefile|  1 +
 arch/mips/generic/board-ranchu.c  | 78 +++
 5 files changed, 126 insertions(+)
 create mode 100644 arch/mips/configs/generic/board-ranchu.config
 create mode 100644 arch/mips/generic/board-ranchu.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 6426875..03403c9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11063,6 +11063,12 @@ S: Maintained
 F: Documentation/blockdev/ramdisk.txt
 F: drivers/block/brd.c
 
+RANCHU VIRTUAL BOARD FOR MIPS
+M: Miodrag Dinic 
+L: linux-m...@linux-mips.org
+S: Supported
+F: arch/mips/generic/board-ranchu.c
+
 RANDOM NUMBER DRIVER
 M: "Theodore Ts'o" 
 S: Maintained
diff --git a/arch/mips/configs/generic/board-ranchu.config 
b/arch/mips/configs/generic/board-ranchu.config
new file mode 100644
index 000..fee9ad4
--- /dev/null
+++ b/arch/mips/configs/generic/board-ranchu.config
@@ -0,0 +1,30 @@
+CONFIG_VIRT_BOARD_RANCHU=y
+
+CONFIG_BATTERY_GOLDFISH=y
+CONFIG_FB=y
+CONFIG_FB_GOLDFISH=y
+CONFIG_GOLDFISH=y
+CONFIG_STAGING=y
+CONFIG_GOLDFISH_AUDIO=y
+CONFIG_GOLDFISH_PIC=y
+CONFIG_GOLDFISH_PIPE=y
+CONFIG_GOLDFISH_TTY=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_GOLDFISH=y
+
+CONFIG_INPUT_EVDEV=y
+CONFIG_INPUT_KEYBOARD=y
+CONFIG_KEYBOARD_GOLDFISH_EVENTS=y
+
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
+CONFIG_POWER_RESET_SYSCON_POWEROFF=y
+
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
+CONFIG_NETDEVICES=y
+CONFIG_VIRTIO_NET=y
diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
index 51ffbba..fe1231d 100644
--- a/arch/mips/generic/Kconfig
+++ b/arch/mips/generic/Kconfig
@@ -36,4 +36,15 @@ config FIT_IMAGE_FDT_BOSTON
  enable this if you wish to boot on a MIPS Boston board, as it is
  expected by the bootloader.
 
+config VIRT_BOARD_RANCHU
+   bool "Ranchu platform for Android emulator"
+   select LEGACY_BOARDS
+   help
+ This enables support for the platform used by Android emulator.
+
+ Ranchu platform consists of a set of virtual devices. This platform
+ enables emulation of variety of virtual configurations while using
+ Android emulator. Android emulator is based on Qemu, and contains
+ the support for the same set of virtual devices.
+
 endif
diff --git a/arch/mips/generic/Makefile b/arch/mips/generic/Makefile
index 56b3ea5..14931f2 100644
--- a/arch/mips/generic/Makefile
+++ b/arch/mips/generic/Makefile
@@ -14,4 +14,5 @@ obj-y += proc.o
 
 obj-$(CONFIG_YAMON_DT_SHIM)+= yamon-dt.o
 obj-$(CONFIG_LEGACY_BOARD_SEAD3)   += board-sead3.o
+obj-$(CONFIG_VIRT_BOARD_RANCHU)+= board-ranchu.o
 obj-$(CONFIG_KEXEC)+= kexec.o
diff --git a/arch/mips/generic/board-ranchu.c b/arch/mips/generic/board-ranchu.c
new file mode 100644
index 000..500874d
--- /dev/null
+++ b/arch/mips/generic/board-ranchu.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2017 Imagination Technologies Ltd.
+ * Author: Miodrag Dinic 
+ *
+ * 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.
+ */
+
+#include 
+
+#include 
+#include 
+
+#define GOLDFISH_TIMER_LOW 0x00
+#define GOLDFISH_TIMER_HIGH0x04
+
+static __init uint64_t read_rtc_time(void __iomem *base)
+{
+   u64 time_low;
+   u64 time_high;
+
+   time_low = readl(base + GOLDFISH_TIMER_LOW);
+   time_high = readl(base + GOLDFISH_TIMER_HIGH);
+
+   return (time_high << 32) | time_low;
+}
+
+static __init unsigned int ranchu_measure_hpt_freq(void)
+{
+   u64 rtc_start, rtc_current, rtc_delta;
+   unsigned int start, count;
+   struct device_node *np;
+   void __iomem *rtc_base;
+
+   np = of_find_compatible_node(NULL, NULL, "google,goldfish-rtc");
+   if (!np)
+   panic("%s(): Failed to find 'google,goldfish-rtc' dt node!",
+ __func__);
+
+   rtc_base = of_iomap(np, 0);
+   if (!rtc_base)
+   panic("%s(): Failed to ioremap Goldfish RTC base!", __func__);
+
+   /*
+* poll the nanosecond resolution RTC for 1 second
+* to calibrate the CPU frequency
+*/
+   rtc_start = read_rtc_time(rtc_base);
+   start = read_c0_count();
+
+   do {
+