arm: add Calxeda Highbank support

currently only tested under qemu

qemu-system-arm -M highbank -nographic -m 4089 -kernel build/highbank/arch/arm/pbl/zbarebox -tftp "." -drive id=disk,if=ide,file=disk.img -device ide-drive,drive=disk,bus=ide.0

with:
- timer (AMBA SP804)
- uart (AMBA PL011)
- gpio (AMBA PL061)
- ahci
- net (XGMAC)

Cc Rob Herring <[email protected]>

Signed-off-by Jean-Christophe PLAGNIOL-VILLARD <[email protected]>

---
 arch/arm/Kconfig                               |   11 +++++
 arch/arm/Makefile                              |    2 +
 arch/arm/boards/highbank/Makefile              |    4 ++
 arch/arm/boards/highbank/config.h              |    5 ++
 arch/arm/boards/highbank/env/config            |   34 +++++++++++++
 arch/arm/boards/highbank/init.c                |   46 ++++++++++++++++++
 arch/arm/boards/highbank/lowlevel.c            |   17 +++++++
 arch/arm/configs/highbank_defconfig            |   61 ++++++++++++++++++++++++
 arch/arm/mach-highbank/Kconfig                 |   18 +++++++
 arch/arm/mach-highbank/Makefile                |    3 ++
 arch/arm/mach-highbank/core.c                  |   50 +++++++++++++++++++
 arch/arm/mach-highbank/devices.c               |   50 +++++++++++++++++++
 arch/arm/mach-highbank/include/mach/clkdev.h   |    7 +++
 arch/arm/mach-highbank/include/mach/debug_ll.h |   26 ++++++++++
 arch/arm/mach-highbank/include/mach/devices.h  |   16 +++++++
 arch/arm/mach-highbank/include/mach/gpio.h     |    1 +
 arch/arm/mach-highbank/reset.c                 |   22 +++++++++
 arch/arm/mach-highbank/sysregs.h               |   52 ++++++++++++++++++++
 18 files changed, 425 insertions(+)
 create mode 100644 arch/arm/boards/highbank/Makefile
 create mode 100644 arch/arm/boards/highbank/config.h
 create mode 100644 arch/arm/boards/highbank/env/config
 create mode 100644 arch/arm/boards/highbank/init.c
 create mode 100644 arch/arm/boards/highbank/lowlevel.c
 create mode 100644 arch/arm/configs/highbank_defconfig
 create mode 100644 arch/arm/mach-highbank/Kconfig
 create mode 100644 arch/arm/mach-highbank/Makefile
 create mode 100644 arch/arm/mach-highbank/core.c
 create mode 100644 arch/arm/mach-highbank/devices.c
 create mode 100644 arch/arm/mach-highbank/include/mach/clkdev.h
 create mode 100644 arch/arm/mach-highbank/include/mach/debug_ll.h
 create mode 100644 arch/arm/mach-highbank/include/mach/devices.h
 create mode 100644 arch/arm/mach-highbank/include/mach/gpio.h
 create mode 100644 arch/arm/mach-highbank/reset.c
 create mode 100644 arch/arm/mach-highbank/sysregs.h

arch/arm/Kconfig +0 -0

index 5ae5bd0..c10b9da 100644
@@ -49,6 +49,16 @@ config ARCH_EP93XX
 	select CPU_ARM920T
 	select GENERIC_GPIO

arch/arm/Kconfig +2 -0

+
 config ARCH_IMX
 	bool "Freescale iMX-based"
 	select GENERIC_GPIO

@@ -126,6 +136,7 @@ source arch/arm/mach-at91/Kconfig
 source arch/arm/mach-bcm2835/Kconfig
 source arch/arm/mach-clps711x/Kconfig
 source arch/arm/mach-ep93xx/Kconfig
+source arch/arm/mach-highbank/Kconfig
 source arch/arm/mach-imx/Kconfig
 source arch/arm/mach-mxs/Kconfig
 source arch/arm/mach-netx/Kconfig

arch/arm/Makefile +2 -0

index 73631ba..15bebf1 100644
@@ -55,6 +55,7 @@ machine-$(CONFIG_ARCH_AT91)		:= at91
 machine-$(CONFIG_ARCH_BCM2835)		:= bcm2835
 machine-$(CONFIG_ARCH_CLPS711X)		:= clps711x
 machine-$(CONFIG_ARCH_EP93XX)		:= ep93xx
+machine-$(CONFIG_ARCH_HIGHBANK)		:= highbank
 machine-$(CONFIG_ARCH_IMX)		:= imx
 machine-$(CONFIG_ARCH_MXS)		:= mxs
 machine-$(CONFIG_ARCH_NOMADIK)		:= nomadik

@@ -99,6 +100,7 @@ board-$(CONFIG_MACH_EUKREA_CPUIMX51SD)		:= eukrea_cpuimx51
 board-$(CONFIG_MACH_FREESCALE_MX25_3STACK)	:= freescale-mx25-3-stack
 board-$(CONFIG_MACH_FREESCALE_MX35_3STACK)	:= freescale-mx35-3-stack
 board-$(CONFIG_MACH_GE863)			:= telit-evk-pro3
+board-$(CONFIG_MACH_HIGHBANK)			:= highbank
 board-$(CONFIG_MACH_IMX21ADS)			:= imx21ads
 board-$(CONFIG_MACH_IMX27ADS)			:= imx27ads
 board-$(CONFIG_MACH_IMX233_OLINUXINO)	:= imx233-olinuxino

arch/arm/boards/highbank/Makefile new file +4 -0

new file mode 100644
index 0000000..98921a4
@@ -0,0 +1,4 @@
+obj-y += init.o
+
+obj-y += lowlevel.o
+pbl-y += lowlevel.o

arch/arm/boards/highbank/config.h new file +5 -0

new file mode 100644
index 0000000..25bb18f
@@ -0,0 +1,5 @@
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#endif	/* __CONFIG_H */

arch/arm/boards/highbank/env/config new file +34 -0

new file mode 100644
index 0000000..3fec087
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# use 'dhcp' to do dhcp in barebox and in kernel
+# use 'none' if you want to skip kernel ip autoconfiguration
+ip=dhcp
+global.dhcp.vendor_id=barebox-highbank
+
+# or set your networking parameters here
+#eth0.ipaddr=a.b.c.d
+#eth0.netmask=a.b.c.d
+#eth0.gateway=a.b.c.d
+#eth0.serverip=a.b.c.d
+
+# can be either 'nfs', 'tftp' or 'nor'
+kernel_loc=tftp
+# can be either 'net', 'nor' or 'initrd'
+rootfs_loc=initrd
+
+# can be either 'jffs2' or 'ubifs'
+rootfs_type=ubifs
+rootfsimage=root.$rootfs_type
+
+kernelimage=zImage
+#kernelimage=uImage
+#kernelimage=Image
+#kernelimage=Image.lzo
+
+autoboot_timeout=3
+
+bootargs="console=ttyAMA0,115200n8 CONSOLE=/dev/ttyAMA0"
+
+# set a fancy prompt (if support is compiled in)
+PS1="\e[1;31m[barebox@\h]:\w\e[0m\n# "
+

arch/arm/boards/highbank/init.c new file +46 -0

new file mode 100644
index 0000000..e28fae4
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <init.h>
+#include <asm/armlinux.h>
+#include <asm/system_info.h>
+#include <generated/mach-types.h>
+#include <mach/devices.h>
+#include <environment.h>
+#include <partition.h>
+#include <sizes.h>
+#include <io.h>
+
+static int highbank_mem_init(void)
+{
+	highbank_add_ddram(4089 << 20);
+
+	return 0;
+}
+mem_initcall(highbank_mem_init);
+
+static int highbank_devices_init(void)
+{
+	highbank_register_ahci();
+	highbank_register_xgmac(0);
+	highbank_register_xgmac(1);
+
+	armlinux_set_bootparams((void *)(0x00000100));
+
+	devfs_add_partition("nvram", 0x00000, SZ_16K, DEVFS_PARTITION_FIXED, "env0");
+
+	return 0;
+}
+device_initcall(highbank_devices_init);
+
+static int highbank_console_init(void)
+{
+	highbank_register_uart();
+
+	return 0;
+}
+console_initcall(highbank_console_init);

arch/arm/boards/highbank/lowlevel.c new file +17 -0

new file mode 100644
index 0000000..2ee57a9
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <sizes.h>
+#include <asm/barebox-arm-head.h>
+#include <asm/barebox-arm.h>
+#include <asm/system_info.h>
+
+void __naked reset(void)
+{
+	common_reset();
+	barebox_arm_entry(0x00000000, SZ_512M, 0);
+}

arch/arm/configs/highbank_defconfig new file +61 -0

new file mode 100644
index 0000000..e0725ed
@@ -0,0 +1,61 @@
+CONFIG_ARCH_HIGHBANK=y
+CONFIG_AEABI=y
+CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
+CONFIG_PBL_IMAGE=y
+CONFIG_MMU=y
+CONFIG_MALLOC_SIZE=0xa00000
+CONFIG_MALLOC_TLSF=y
+CONFIG_PROMPT="vexpress: "
+CONFIG_LONGHELP=y
+CONFIG_GLOB=y
+CONFIG_HUSH_FANCY_PROMPT=y
+CONFIG_CMDLINE_EDITING=y
+CONFIG_AUTO_COMPLETE=y
+CONFIG_MENU=y
+CONFIG_DEFAULT_ENVIRONMENT_GENERIC=y
+CONFIG_DEFAULT_ENVIRONMENT_PATH="arch/arm/boards/highbank/env"
+CONFIG_CMD_EDIT=y
+CONFIG_CMD_SLEEP=y
+CONFIG_CMD_SAVEENV=y
+CONFIG_CMD_EXPORT=y
+CONFIG_CMD_PRINTENV=y
+CONFIG_CMD_READLINE=y
+CONFIG_CMD_MENU=y
+CONFIG_CMD_MENU_MANAGEMENT=y
+CONFIG_CMD_PASSWD=y
+CONFIG_CMD_TFTP=y
+CONFIG_CMD_ECHO_E=y
+CONFIG_CMD_LOADB=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_UIMAGE=y
+# CONFIG_CMD_BOOTU is not set
+CONFIG_CMD_RESET=y
+CONFIG_CMD_GO=y
+CONFIG_CMD_OFTREE=y
+CONFIG_CMD_MTEST=y
+CONFIG_CMD_MTEST_ALTERNATIVE=y
+CONFIG_CMD_TIMEOUT=y
+CONFIG_CMD_PARTITION=y
+CONFIG_CMD_UNCOMPRESS=y
+CONFIG_CMD_CLK=y
+CONFIG_NET=y
+CONFIG_NET_DHCP=y
+CONFIG_NET_NFS=y
+CONFIG_NET_PING=y
+CONFIG_NET_NETCONSOLE=y
+CONFIG_NET_RESOLV=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_DRIVER_NET_CALXEDA_XGMAC=y
+# CONFIG_SPI is not set
+CONFIG_DISK=y
+CONFIG_DISK_AHCI=y
+CONFIG_DISK_AHCI_GENERIC=y
+CONFIG_GPIO_PL061=y
+CONFIG_FS_TFTP=y
+CONFIG_SHA1=y
+CONFIG_SHA256=y

arch/arm/mach-highbank/Kconfig new file +18 -0

new file mode 100644
index 0000000..47c6405
@@ -0,0 +1,18 @@
+if ARCH_HIGHBANK
+
+config ARCH_TEXT_BASE
+	hex
+	default 0x03f00000
+
+config BOARDINFO
+	default "Calxeda Highbank" if MACH_HIGHBANK
+
+choice
+	prompt "Calxeda Board type"
+
+config MACH_HIGHBANK
+	bool "Calxeda Highbank"
+
+endchoice
+
+endif

arch/arm/mach-highbank/Makefile new file +3 -0

new file mode 100644
index 0000000..3f01cbb
@@ -0,0 +1,3 @@
+obj-y += core.o
+obj-y += devices.o
+obj-y += reset.o

arch/arm/mach-highbank/core.c new file +50 -0

new file mode 100644
index 0000000..4bb9bd4
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <init.h>
+#include <io.h>
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/amba/bus.h>
+
+#include <asm/hardware/arm_timer.h>
+#include <asm/hardware/sp810.h>
+
+#include <mach/devices.h>
+
+static void highbank_clk_init(void)
+{
+	struct clk *clk;
+
+	clk = clk_fixed("dummy_apb_pclk", 0);
+	clk_register_clkdev(clk, "apb_pclk", NULL);
+
+	clk = clk_fixed("pclk", 150000000);
+	clk_register_clkdev(clk, NULL, "sp804");
+	clk_register_clkdev(clk, NULL, "uart-pl011");
+
+}
+
+static void highbank_sp804_init(void)
+{
+	amba_apb_device_add(NULL, "sp804", DEVICE_ID_SINGLE, 0xfff34000, 4096, NULL, 0);
+}
+
+static int highbank_init(void)
+{
+	highbank_clk_init();
+	highbank_sp804_init();
+
+	amba_apb_device_add(NULL, "pl061_gpio", 0, 0xfff30000, 4096, NULL, 0);
+	amba_apb_device_add(NULL, "pl061_gpio", 1, 0xfff31000, 4096, NULL, 0);
+	amba_apb_device_add(NULL, "pl061_gpio", 2, 0xfff32000, 4096, NULL, 0);
+	amba_apb_device_add(NULL, "pl061_gpio", 3, 0xfff33000, 4096, NULL, 0);
+
+	return 0;
+}
+postcore_initcall(highbank_init);

arch/arm/mach-highbank/devices.c new file +50 -0

new file mode 100644
index 0000000..d9a174e
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <sizes.h>
+
+#include <linux/amba/bus.h>
+
+#include <asm/memory.h>
+
+#include <mach/devices.h>
+
+void highbank_add_ddram(u32 size)
+{
+	arm_add_mem_device("ram1", 0x00000000, size);
+	add_mem_device("nvram", 0xfff88000, SZ_32K, IORESOURCE_MEM_WRITEABLE);
+}
+
+void highbank_register_uart(void)
+{
+	amba_apb_device_add(NULL, "uart-pl011", DEVICE_ID_SINGLE, 0xfff36000, 4096, NULL, 0);
+}
+
+void highbank_register_ahci(void)
+{
+	add_generic_device("ahci", DEVICE_ID_SINGLE, NULL, 0xffe08000,
+			0x10000, IORESOURCE_MEM, NULL);
+}
+
+void highbank_register_xgmac(unsigned id)
+{
+	resource_size_t start;
+
+	switch (id) {
+	case 0:
+		start = 0xfff50000;
+		break;
+	case 1:
+		start = 0xfff51000;
+		break;
+	default:
+		return;
+	}
+
+	add_generic_device("hb-xgmac", id, NULL, start, 0x1000,
+				IORESOURCE_MEM, NULL);
+}

arch/arm/mach-highbank/include/mach/clkdev.h new file +0 -0

new file mode 100644
index 0000000..04b37a8

arch/arm/mach-highbank/include/mach/clkdev.h new file +2 -0

+
+#endif

arch/arm/mach-highbank/include/mach/debug_ll.h new file +14 -0

new file mode 100644
index 0000000..4cdbb3c
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2013 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#ifndef __MACH_DEBUG_LL_H__
+#define   __MACH_DEBUG_LL_H__
+
+#include <linux/amba/serial.h>
+#include <io.h>
+
+#define UART_BASE 0xfff36000
+

arch/arm/mach-highbank/include/mach/debug_ll.h new file +2 -0

+}
+#endif

arch/arm/mach-highbank/include/mach/devices.h new file +16 -0

new file mode 100644
index 0000000..4c12198
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#ifndef __ASM_ARCH_DEVICES_H__
+#define __ASM_ARCH_DEVICES_H__
+
+void highbank_add_ddram(u32 size);
+
+void highbank_register_uart(void);
+void highbank_register_ahci(void);
+void highbank_register_xgmac(unsigned id);
+
+#endif /* __ASM_ARCH_DEVICES_H__ */

arch/arm/mach-highbank/include/mach/gpio.h new file +1 -0

new file mode 100644
index 0000000..306ab4c
@@ -0,0 +1 @@
+#include <asm-generic/gpio.h>

arch/arm/mach-highbank/reset.c new file +11 -0

new file mode 100644
index 0000000..3306170
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <io.h>
+#include <linux/amba/sp805.h>
+
+#include <mach/devices.h>

arch/arm/mach-highbank/reset.c new file +1 -0

+}

arch/arm/mach-highbank/sysregs.h new file +22 -0

new file mode 100644
index 0000000..ad27c1e
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _MACH_HIGHBANK__SYSREGS_H_
+#define _MACH_HIGHBANK__SYSREGS_H_
+
+#include <io.h>
+
+extern void __iomem *sregs_base;
+

arch/arm/mach-highbank/sysregs.h new file +10 -0

+{
+	writel(HB_PWR_SUSPEND, sregs_base + HB_SREG_A9_PWR_REQ);
+}
+
+static inline void hignbank_set_pwr_shutdown(void)
+{
+	writel(HB_PWR_SHUTDOWN, sregs_base + HB_SREG_A9_PWR_REQ);
+}
+
+static inline void hignbank_set_pwr_soft_reset(void)

Quoted 11 lines · Jean-Christophe PLAGNIOL-VILLARD

currently only tested under qemu

qemu-system-arm -M highbank -nographic -m 4089 -kernel build/highbank/arch/arm/pbl/zbarebox -tftp "." -drive id=disk,if=ide,file=disk.img -device ide-drive,drive=disk,bus=ide.0

with:
- timer (AMBA SP804)
- uart (AMBA PL011)
- gpio (AMBA PL061)
- ahci
- net (XGMAC)

Quoted 2 lines

Cc Rob Herring <[email protected]>

Signed-off-by Jean-Christophe PLAGNIOL-VILLARD <[email protected]>

Looks pretty good. A couple of comments below.

Quoted 45 lines

---
 arch/arm/Kconfig                               |   11 +++++
 arch/arm/Makefile                              |    2 +
 arch/arm/boards/highbank/Makefile              |    4 ++
 arch/arm/boards/highbank/config.h              |    5 ++
 arch/arm/boards/highbank/env/config            |   34 +++++++++++++
 arch/arm/boards/highbank/init.c                |   46 ++++++++++++++++++
 arch/arm/boards/highbank/lowlevel.c            |   17 +++++++
 arch/arm/configs/highbank_defconfig            |   61 ++++++++++++++++++++++++
 arch/arm/mach-highbank/Kconfig                 |   18 +++++++
 arch/arm/mach-highbank/Makefile                |    3 ++
 arch/arm/mach-highbank/core.c                  |   50 +++++++++++++++++++
 arch/arm/mach-highbank/devices.c               |   50 +++++++++++++++++++
 arch/arm/mach-highbank/include/mach/clkdev.h   |    7 +++
 arch/arm/mach-highbank/include/mach/debug_ll.h |   26 ++++++++++
 arch/arm/mach-highbank/include/mach/devices.h  |   16 +++++++
 arch/arm/mach-highbank/include/mach/gpio.h     |    1 +
 arch/arm/mach-highbank/reset.c                 |   22 +++++++++
 arch/arm/mach-highbank/sysregs.h               |   52 ++++++++++++++++++++
 18 files changed, 425 insertions(+)
 create mode 100644 arch/arm/boards/highbank/Makefile
 create mode 100644 arch/arm/boards/highbank/config.h
 create mode 100644 arch/arm/boards/highbank/env/config
 create mode 100644 arch/arm/boards/highbank/init.c
 create mode 100644 arch/arm/boards/highbank/lowlevel.c
 create mode 100644 arch/arm/configs/highbank_defconfig
 create mode 100644 arch/arm/mach-highbank/Kconfig
 create mode 100644 arch/arm/mach-highbank/Makefile
 create mode 100644 arch/arm/mach-highbank/core.c
 create mode 100644 arch/arm/mach-highbank/devices.c
 create mode 100644 arch/arm/mach-highbank/include/mach/clkdev.h
 create mode 100644 arch/arm/mach-highbank/include/mach/debug_ll.h
 create mode 100644 arch/arm/mach-highbank/include/mach/devices.h
 create mode 100644 arch/arm/mach-highbank/include/mach/gpio.h
 create mode 100644 arch/arm/mach-highbank/reset.c
 create mode 100644 arch/arm/mach-highbank/sysregs.h

arch/arm/Kconfig +0 -0

index 5ae5bd0..c10b9da 100644
@@ -49,6 +49,16 @@ config ARCH_EP93XX
 	select CPU_ARM920T
 	select GENERIC_GPIO
 

arch/arm/Kconfig config ARCH_EP93XX · line 60

Quoted 9 lines

arch/arm/Kconfig +9 -0

+config ARCH_HIGHBANK
+	bool "Calxeda Highbank"
+	select HAS_DEBUG_LL
+	select CPU_V7
+	select ARM_AMBA
+	select AMBA_SP804
+	select CLKDEV_LOOKUP
+	select COMMON_CLK
+	select GPIOLIB

GPIO is generally not accessible and needs to be checked whether enabled in the DT. Accessing it will cause an abort.

Quoted 20 lines

arch/arm/Kconfig +2 -0

+
 config ARCH_IMX
 	bool "Freescale iMX-based"
 	select GENERIC_GPIO

@@ -126,6 +136,7 @@ source arch/arm/mach-at91/Kconfig
 source arch/arm/mach-bcm2835/Kconfig
 source arch/arm/mach-clps711x/Kconfig
 source arch/arm/mach-ep93xx/Kconfig
+source arch/arm/mach-highbank/Kconfig
 source arch/arm/mach-imx/Kconfig
 source arch/arm/mach-mxs/Kconfig
 source arch/arm/mach-netx/Kconfig

arch/arm/Makefile +0 -0

index 73631ba..15bebf1 100644

arch/arm/mach-highbank/include/mach/clkdev.h new file +0 -0

new file mode 100644
index 0000000..04b37a8

arch/arm/mach-highbank/include/mach/clkdev.h line 5

Quoted 6 lines

arch/arm/mach-highbank/include/mach/clkdev.h new file +5 -0

@@ -0,0 +1,7 @@
+#ifndef __ASM_MACH_CLKDEV_H
+#define __ASM_MACH_CLKDEV_H
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)

Does any board really do anything with these?

Quoted 27 lines

arch/arm/mach-highbank/include/mach/clkdev.h new file +2 -0

+
+#endif

arch/arm/mach-highbank/include/mach/debug_ll.h new file +18 -0

new file mode 100644
index 0000000..4cdbb3c
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2013 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#ifndef __MACH_DEBUG_LL_H__
+#define   __MACH_DEBUG_LL_H__
+
+#include <linux/amba/serial.h>
+#include <io.h>
+
+#define UART_BASE 0xfff36000
+
+static inline void PUTC_LL(char c)
+{
+	/* Wait until there is space in the FIFO */
+	while (readl(UART_BASE + UART01x_FR) & UART01x_FR_TXFF);

arch/arm/mach-highbank/include/mach/debug_ll.h line 24

Quoted 6 lines

arch/arm/mach-highbank/include/mach/debug_ll.h new file +6 -0

+
+	/* Send the character */
+	writel(c, UART_BASE + UART01x_DR);
+
+	/* Wait to make sure it hits the line, in case we die too soon. */
+	while (readl(UART_BASE + UART01x_FR) & UART01x_FR_TXFF);

This could be generalized to common pl011 code.

Quoted 53 lines

arch/arm/mach-highbank/include/mach/debug_ll.h new file +2 -0

+}
+#endif

arch/arm/mach-highbank/include/mach/devices.h new file +16 -0

new file mode 100644
index 0000000..4c12198
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#ifndef __ASM_ARCH_DEVICES_H__
+#define __ASM_ARCH_DEVICES_H__
+
+void highbank_add_ddram(u32 size);
+
+void highbank_register_uart(void);
+void highbank_register_ahci(void);
+void highbank_register_xgmac(unsigned id);
+
+#endif /* __ASM_ARCH_DEVICES_H__ */

arch/arm/mach-highbank/include/mach/gpio.h new file +1 -0

new file mode 100644
index 0000000..306ab4c
@@ -0,0 +1 @@
+#include <asm-generic/gpio.h>

arch/arm/mach-highbank/reset.c new file +15 -0

new file mode 100644
index 0000000..3306170
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
+ *
+ * GPLv2 only
+ */
+
+#include <common.h>
+#include <io.h>
+#include <linux/amba/sp805.h>
+
+#include <mach/devices.h>
+
+#include "sysregs.h"
+
+void __iomem *sregs_base = IOMEM(0xfff3c00);

arch/arm/mach-highbank/reset.c line 21

Quoted 6 lines

arch/arm/mach-highbank/reset.c new file +6 -0

+
+void __noreturn reset_cpu(ulong addr)
+{
+	hignbank_set_pwr_hard_reset();
+
+	while(1);

This needs a wfi to actually trigger the reset.

Quoted 35 lines

arch/arm/mach-highbank/reset.c new file +1 -0

+}

arch/arm/mach-highbank/sysregs.h new file +27 -0

new file mode 100644
index 0000000..ad27c1e
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2011 Calxeda, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _MACH_HIGHBANK__SYSREGS_H_
+#define _MACH_HIGHBANK__SYSREGS_H_
+
+#include <io.h>
+
+extern void __iomem *sregs_base;
+
+#define HB_SREG_A9_PWR_REQ		0xf00
+#define HB_SREG_A9_BOOT_STAT		0xf04
+#define HB_SREG_A9_BOOT_DATA		0xf08
+
+#define HB_PWR_SUSPEND			0

arch/arm/mach-highbank/sysregs.h line 32

Quoted 5 lines

arch/arm/mach-highbank/sysregs.h new file +5 -0

+#define HB_PWR_SOFT_RESET		1
+#define HB_PWR_HARD_RESET		2
+#define HB_PWR_SHUTDOWN			3
+
+static inline void hignbank_set_pwr_suspend(void)

Same typo as recently fixed in the kernel:
s/hignbank/highbank/

Quoted 14 lines

arch/arm/mach-highbank/sysregs.h new file +13 -0

+{
+	writel(HB_PWR_SUSPEND, sregs_base + HB_SREG_A9_PWR_REQ);
+}
+
+static inline void hignbank_set_pwr_shutdown(void)
+{
+	writel(HB_PWR_SHUTDOWN, sregs_base + HB_SREG_A9_PWR_REQ);
+}
+
+static inline void hignbank_set_pwr_soft_reset(void)
+{
+	writel(HB_PWR_SOFT_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
+}

arch/arm/mach-highbank/sysregs.h line 52

Quoted 8 lines

arch/arm/mach-highbank/sysregs.h new file +7 -0

+
+static inline void hignbank_set_pwr_hard_reset(void)
+{
+	writel(HB_PWR_HARD_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
+}
+
+#endif