Commit 220e6cf7 authored by Rob Herring's avatar Rob Herring Committed by Arnd Bergmann

ARM: add Highbank core platform support

This adds basic support for the Calxeda Highbank platform.
Signed-off-by: default avatarRob Herring <rob.herring@calxeda.com>
Reviewed-by: default avatarJamie Iles <jamie@jamieiles.com>
Reviewed-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent 253d7add
...@@ -330,6 +330,20 @@ config ARCH_BCMRING ...@@ -330,6 +330,20 @@ config ARCH_BCMRING
help help
Support for Broadcom's BCMRing platform. Support for Broadcom's BCMRing platform.
config ARCH_HIGHBANK
bool "Calxeda Highbank-based"
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARM_AMBA
select ARM_GIC
select ARM_TIMER_SP804
select CLKDEV_LOOKUP
select CPU_V7
select GENERIC_CLOCKEVENTS
select HAVE_ARM_SCU
select USE_OF
help
Support for the Calxeda Highbank SoC based boards.
config ARCH_CLPS711X config ARCH_CLPS711X
bool "Cirrus Logic CLPS711x/EP721x-based" bool "Cirrus Logic CLPS711x/EP721x-based"
select CPU_ARM720T select CPU_ARM720T
......
...@@ -128,6 +128,13 @@ choice ...@@ -128,6 +128,13 @@ choice
Say Y here if you want the debug print routines to direct Say Y here if you want the debug print routines to direct
their output to the second serial port on these devices. their output to the second serial port on these devices.
config DEBUG_HIGHBANK_UART
bool "Kernel low-level debugging messages via Highbank UART"
depends on ARCH_HIGHBANK
help
Say Y here if you want the debug print routines to direct
their output to the UART on Highbank based devices.
endchoice endchoice
config EARLY_PRINTK config EARLY_PRINTK
......
...@@ -144,6 +144,7 @@ machine-$(CONFIG_ARCH_EBSA110) := ebsa110 ...@@ -144,6 +144,7 @@ machine-$(CONFIG_ARCH_EBSA110) := ebsa110
machine-$(CONFIG_ARCH_EP93XX) := ep93xx machine-$(CONFIG_ARCH_EP93XX) := ep93xx
machine-$(CONFIG_ARCH_GEMINI) := gemini machine-$(CONFIG_ARCH_GEMINI) := gemini
machine-$(CONFIG_ARCH_H720X) := h720x machine-$(CONFIG_ARCH_H720X) := h720x
machine-$(CONFIG_ARCH_HIGHBANK) := highbank
machine-$(CONFIG_ARCH_INTEGRATOR) := integrator machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
machine-$(CONFIG_ARCH_IOP13XX) := iop13xx machine-$(CONFIG_ARCH_IOP13XX) := iop13xx
machine-$(CONFIG_ARCH_IOP32X) := iop32x machine-$(CONFIG_ARCH_IOP32X) := iop32x
......
obj-y := clock.o highbank.o system.o
obj-$(CONFIG_DEBUG_HIGHBANK_UART) += lluart.o
/*
* 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/>.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
struct clk {
unsigned long rate;
};
int clk_enable(struct clk *clk)
{
return 0;
}
void clk_disable(struct clk *clk)
{}
unsigned long clk_get_rate(struct clk *clk)
{
return clk->rate;
}
long clk_round_rate(struct clk *clk, unsigned long rate)
{
return clk->rate;
}
int clk_set_rate(struct clk *clk, unsigned long rate)
{
return 0;
}
static struct clk eclk = { .rate = 200000000 };
static struct clk pclk = { .rate = 150000000 };
static struct clk_lookup lookups[] = {
{ .clk = &pclk, .con_id = "apb_pclk", },
{ .clk = &pclk, .dev_id = "sp804", },
{ .clk = &eclk, .dev_id = "ffe0e000.sdhci", },
{ .clk = &pclk, .dev_id = "fff36000.serial", },
};
void __init highbank_clocks_init(void)
{
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
}
extern void highbank_set_cpu_jump(int cpu, void *jump_addr);
extern void highbank_clocks_init(void);
extern void __iomem *scu_base_addr;
#ifdef CONFIG_DEBUG_HIGHBANK_UART
extern void highbank_lluart_map_io(void);
#else
static inline void highbank_lluart_map_io(void) {}
#endif
/*
* Copyright 2010-2011 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/>.
*/
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <asm/cacheflush.h>
#include <asm/unified.h>
#include <asm/smp_scu.h>
#include <asm/hardware/arm_timer.h>
#include <asm/hardware/timer-sp.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <mach/irqs.h>
#include "core.h"
#include "sysregs.h"
void __iomem *sregs_base;
#define HB_SCU_VIRT_BASE 0xfee00000
void __iomem *scu_base_addr = ((void __iomem *)(HB_SCU_VIRT_BASE));
static struct map_desc scu_io_desc __initdata = {
.virtual = HB_SCU_VIRT_BASE,
.pfn = 0, /* run-time */
.length = SZ_4K,
.type = MT_DEVICE,
};
static void __init highbank_scu_map_io(void)
{
unsigned long base;
/* Get SCU base */
asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (base));
scu_io_desc.pfn = __phys_to_pfn(base);
iotable_init(&scu_io_desc, 1);
}
static void __init highbank_map_io(void)
{
highbank_scu_map_io();
highbank_lluart_map_io();
}
#define HB_JUMP_TABLE_PHYS(cpu) (0x40 + (0x10 * (cpu)))
#define HB_JUMP_TABLE_VIRT(cpu) phys_to_virt(HB_JUMP_TABLE_PHYS(cpu))
void highbank_set_cpu_jump(int cpu, void *jump_addr)
{
writel(BSYM(virt_to_phys(jump_addr)), HB_JUMP_TABLE_VIRT(cpu));
__cpuc_flush_dcache_area(HB_JUMP_TABLE_VIRT(cpu), 16);
outer_clean_range(HB_JUMP_TABLE_PHYS(cpu),
HB_JUMP_TABLE_PHYS(cpu) + 15);
}
const static struct of_device_id irq_match[] = {
{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
{}
};
static void __init highbank_init_irq(void)
{
of_irq_init(irq_match);
l2x0_of_init(0, ~0UL);
}
static void __init highbank_timer_init(void)
{
int irq;
struct device_node *np;
void __iomem *timer_base;
/* Map system registers */
np = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs");
sregs_base = of_iomap(np, 0);
WARN_ON(!sregs_base);
np = of_find_compatible_node(NULL, NULL, "arm,sp804");
timer_base = of_iomap(np, 0);
WARN_ON(!timer_base);
irq = irq_of_parse_and_map(np, 0);
highbank_clocks_init();
sp804_clocksource_init(timer_base + 0x20, "timer1");
sp804_clockevents_init(timer_base, irq, "timer0");
}
static struct sys_timer highbank_timer = {
.init = highbank_timer_init,
};
static void highbank_power_off(void)
{
hignbank_set_pwr_shutdown();
scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
while (1)
cpu_do_idle();
}
static void __init highbank_init(void)
{
pm_power_off = highbank_power_off;
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char *highbank_match[] __initconst = {
"calxeda,highbank",
NULL,
};
DT_MACHINE_START(HIGHBANK, "Highbank")
.map_io = highbank_map_io,
.init_irq = highbank_init_irq,
.timer = &highbank_timer,
.init_machine = highbank_init,
.dt_compat = highbank_match,
MACHINE_END
/*
* Debugging macro include header
*
* Copyright (C) 1994-1999 Russell King
* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
*
* 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.
*/
.macro addruart,rp,rv,tmp
movw \rv, #0x6000
movt \rv, #0xfee3
movw \rp, #0x6000
movt \rp, #0xfff3
.endm
#include <asm/hardware/debug-pl01x.S>
#include <asm/hardware/entry-macro-gic.S>
.macro disable_fiq
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
#ifndef __MACH_IO_H
#define __MACH_IO_H
#define __io(a) ({ (void)(a); __typesafe_io(0); })
#define __mem_pci(a) (a)
#endif
#ifndef __MACH_IRQS_H
#define __MACH_IRQS_H
#define NR_IRQS 192
#endif
/*
* Copyright 2010-2011 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_SYSTEM_H
#define __MACH_SYSTEM_H
static inline void arch_idle(void)
{
cpu_do_idle();
}
extern void arch_reset(char mode, const char *cmd);
#endif
#ifndef __MACH_TIMEX_H
#define __MACH_TIMEX_H
#define CLOCK_TICK_RATE 1000000
#endif
#ifndef __MACH_UNCOMPRESS_H
#define __MACH_UNCOMPRESS_H
#define putc(c)
#define flush()
#define arch_decomp_setup()
#define arch_decomp_wdog()
#endif
#define VMALLOC_END 0xFEE00000UL
/*
* 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/>.
*/
#include <linux/init.h>
#include <asm/page.h>
#include <asm/sizes.h>
#include <asm/mach/map.h>
#define HB_DEBUG_LL_PHYS_BASE 0xfff36000
#define HB_DEBUG_LL_VIRT_BASE 0xfee36000
static struct map_desc lluart_io_desc __initdata = {
.virtual = HB_DEBUG_LL_VIRT_BASE,
.pfn = __phys_to_pfn(HB_DEBUG_LL_PHYS_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
};
void __init highbank_lluart_map_io(void)
{
iotable_init(&lluart_io_desc, 1);
}
/*
* 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 <linux/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 hignbank_set_pwr_suspend(void)
{
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);
}
static inline void hignbank_set_pwr_hard_reset(void)
{
writel(HB_PWR_HARD_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
}
#endif
/*
* 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/>.
*/
#include <linux/io.h>
#include <asm/smp_scu.h>
#include <asm/proc-fns.h>
#include "core.h"
#include "sysregs.h"
void arch_reset(char mode, const char *cmd)
{
if (mode == 'h')
hignbank_set_pwr_hard_reset();
else
hignbank_set_pwr_soft_reset();
scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
cpu_do_idle();
}
...@@ -822,7 +822,7 @@ config CACHE_L2X0 ...@@ -822,7 +822,7 @@ config CACHE_L2X0
REALVIEW_EB_A9MP || SOC_IMX35 || SOC_IMX31 || MACH_REALVIEW_PBX || \ REALVIEW_EB_A9MP || SOC_IMX35 || SOC_IMX31 || MACH_REALVIEW_PBX || \
ARCH_NOMADIK || ARCH_OMAP4 || ARCH_EXYNOS4 || ARCH_TEGRA || \ ARCH_NOMADIK || ARCH_OMAP4 || ARCH_EXYNOS4 || ARCH_TEGRA || \
ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_SHMOBILE || \ ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_SHMOBILE || \
ARCH_PRIMA2 || ARCH_ZYNQ || ARCH_CNS3XXX ARCH_PRIMA2 || ARCH_ZYNQ || ARCH_CNS3XXX || ARCH_HIGHBANK
default y default y
select OUTER_CACHE select OUTER_CACHE
select OUTER_CACHE_SYNC select OUTER_CACHE_SYNC
......
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