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arm: add 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 <rob.herring@calxeda.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2013-02-13 11:06:42 +01:00 committed by Sascha Hauer
parent 59cfe5905b
commit f6b23059c9
18 changed files with 448 additions and 0 deletions
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11
arch/arm/Kconfig
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@ -49,6 +49,16 @@ config ARCH_EP93XX
select CPU_ARM920T
select GENERIC_GPIO
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
config ARCH_IMX
bool "Freescale iMX-based"
select GENERIC_GPIO
@ -117,6 +127,7 @@ 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

2
arch/arm/Makefile
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@ -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
@ -98,6 +99,7 @@ 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

4
arch/arm/boards/highbank/Makefile Normal file
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@ -0,0 +1,4 @@
obj-y += init.o
obj-y += lowlevel.o
pbl-y += lowlevel.o

5
arch/arm/boards/highbank/config.h Normal file
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@ -0,0 +1,5 @@
#ifndef __CONFIG_H
#define __CONFIG_H
#endif /* __CONFIG_H */

33
arch/arm/boards/highbank/env/config vendored Normal file
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@ -0,0 +1,33 @@
#!/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# "

50
arch/arm/boards/highbank/init.c Normal file
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@ -0,0 +1,50 @@
/*
* Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
*
* 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_gpio(0);
highbank_register_gpio(1);
highbank_register_gpio(2);
highbank_register_gpio(3);
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);

17
arch/arm/boards/highbank/lowlevel.c Normal file
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@ -0,0 +1,17 @@
/*
* Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
*
* 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 barebox_arm_reset_vector(void)
{
arm_cpu_lowlevel_init();
barebox_arm_entry(0x00000000, SZ_512M, 0);
}

60
arch/arm/configs/highbank_defconfig Normal file
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@ -0,0 +1,60 @@
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_GPIO_PL061=y
CONFIG_FS_TFTP=y
CONFIG_SHA1=y
CONFIG_SHA256=y

18
arch/arm/mach-highbank/Kconfig Normal file
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@ -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

3
arch/arm/mach-highbank/Makefile Normal file
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@ -0,0 +1,3 @@
obj-y += core.o
obj-y += devices.o
obj-y += reset.o

48
arch/arm/mach-highbank/core.c Normal file
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@ -0,0 +1,48 @@
/*
* Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
*
* 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 <mach/devices.h>
#include "sysregs.h"
void __iomem *sregs_base = IOMEM(0xfff3c00);
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();
return 0;
}
postcore_initcall(highbank_init);

74
arch/arm/mach-highbank/devices.c Normal file
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@ -0,0 +1,74 @@
/*
* Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
*
* 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);
}
void highbank_register_gpio(unsigned id)
{
resource_size_t start;
switch (id) {
case 0:
start = 0xfff30000;
break;
case 1:
start = 0xfff31000;
break;
case 2:
start = 0xfff32000;
break;
case 3:
start = 0xfff33000;
break;
default:
return;
}
amba_apb_device_add(NULL, "pl061_gpio", id, start, 0x1000, NULL, 0);
}

7
arch/arm/mach-highbank/include/mach/clkdev.h Normal file
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@ -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)
#endif

26
arch/arm/mach-highbank/include/mach/debug_ll.h Normal file
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@ -0,0 +1,26 @@
/*
* Copyright 2013 Jean-Christophe PLAGNIOL-VILLARD <plagniol@jcrosoft.com>
*
* 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);
/* 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);
}
#endif

17
arch/arm/mach-highbank/include/mach/devices.h Normal file
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@ -0,0 +1,17 @@
/*
* Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
*
* 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);
void highbank_register_gpio(unsigned id);
#endif /* __ASM_ARCH_DEVICES_H__ */

1
arch/arm/mach-highbank/include/mach/gpio.h Normal file
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@ -0,0 +1 @@
#include <asm-generic/gpio.h>

20
arch/arm/mach-highbank/reset.c Normal file
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@ -0,0 +1,20 @@
/*
* Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
*
* GPLv2 only
*/
#include <common.h>
#include <io.h>
#include <mach/devices.h>
#include "sysregs.h"
void __noreturn reset_cpu(ulong addr)
{
hingbank_set_pwr_hard_reset();
asm(" wfi");
while(1);
}

52
arch/arm/mach-highbank/sysregs.h Normal file
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@ -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
#define HB_PWR_SOFT_RESET 1
#define HB_PWR_HARD_RESET 2
#define HB_PWR_SHUTDOWN 3
static inline void hingbank_set_pwr_suspend(void)
{
writel(HB_PWR_SUSPEND, sregs_base + HB_SREG_A9_PWR_REQ);
}
static inline void hingbank_set_pwr_shutdown(void)
{
writel(HB_PWR_SHUTDOWN, sregs_base + HB_SREG_A9_PWR_REQ);
}
static inline void hingbank_set_pwr_soft_reset(void)
{
writel(HB_PWR_SOFT_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
}
static inline void hingbank_set_pwr_hard_reset(void)
{
writel(HB_PWR_HARD_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
}
#endif