diff options
Diffstat (limited to 'arch/arm/mach-ns9xxx')
| -rw-r--r-- | arch/arm/mach-ns9xxx/Kconfig | 30 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/Makefile | 7 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/Makefile.boot | 2 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/board-a9m9750dev.c | 69 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/clock.c | 215 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/clock.h | 35 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/generic.c | 27 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/generic.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/gpio-ns9360.c | 118 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/gpio-ns9360.h | 13 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/gpio.c | 141 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/irq.c | 74 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/mach-cc9p9360dev.c | 8 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/mach-cc9p9360js.c | 8 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/plat-serial8250.c | 69 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/processor-ns9360.c | 54 | ||||
| -rw-r--r-- | arch/arm/mach-ns9xxx/time-ns9360.c (renamed from arch/arm/mach-ns9xxx/time.c) | 75 |
17 files changed, 693 insertions, 257 deletions
diff --git a/arch/arm/mach-ns9xxx/Kconfig b/arch/arm/mach-ns9xxx/Kconfig index 8584ed10799..dd0cd5ac4b8 100644 --- a/arch/arm/mach-ns9xxx/Kconfig +++ b/arch/arm/mach-ns9xxx/Kconfig @@ -2,9 +2,26 @@ if ARCH_NS9XXX menu "NS9xxx Implementations" +config NS9XXX_HAVE_SERIAL8250 + bool + +config PROCESSOR_NS9360 + bool + +config MODULE_CC9P9360 + bool + select PROCESSOR_NS9360 + +config BOARD_A9M9750DEV + select NS9XXX_HAVE_SERIAL8250 + bool + +config BOARD_JSCC9P9360 + bool + config MACH_CC9P9360DEV bool "ConnectCore 9P 9360 on an A9M9750 Devboard" - select PROCESSOR_NS9360 + select MODULE_CC9P9360 select BOARD_A9M9750DEV help Say Y here if you are using the Digi ConnectCore 9P 9360 @@ -12,21 +29,12 @@ config MACH_CC9P9360DEV config MACH_CC9P9360JS bool "ConnectCore 9P 9360 on a JSCC9P9360 Devboard" - select PROCESSOR_NS9360 + select MODULE_CC9P9360 select BOARD_JSCC9P9360 help Say Y here if you are using the Digi ConnectCore 9P 9360 on an JSCC9P9360 Development Board. -config PROCESSOR_NS9360 - bool - -config BOARD_A9M9750DEV - bool - -config BOARD_JSCC9P9360 - bool - endmenu endif diff --git a/arch/arm/mach-ns9xxx/Makefile b/arch/arm/mach-ns9xxx/Makefile index 6fb82b855a5..41efaf9ad50 100644 --- a/arch/arm/mach-ns9xxx/Makefile +++ b/arch/arm/mach-ns9xxx/Makefile @@ -1,7 +1,12 @@ -obj-y := irq.o time.o generic.o gpio.o +obj-y := clock.o generic.o gpio.o irq.o obj-$(CONFIG_MACH_CC9P9360DEV) += mach-cc9p9360dev.o obj-$(CONFIG_MACH_CC9P9360JS) += mach-cc9p9360js.o +obj-$(CONFIG_PROCESSOR_NS9360) += gpio-ns9360.o processor-ns9360.o time-ns9360.o + obj-$(CONFIG_BOARD_A9M9750DEV) += board-a9m9750dev.o obj-$(CONFIG_BOARD_JSCC9P9360) += board-jscc9p9360.o + +# platform devices +obj-$(CONFIG_NS9XXX_HAVE_SERIAL8250) += plat-serial8250.o diff --git a/arch/arm/mach-ns9xxx/Makefile.boot b/arch/arm/mach-ns9xxx/Makefile.boot index 75ed64e90fa..54654919229 100644 --- a/arch/arm/mach-ns9xxx/Makefile.boot +++ b/arch/arm/mach-ns9xxx/Makefile.boot @@ -1,2 +1,2 @@ -zreladdr-y := 0x108000 +zreladdr-y := 0x8000 params_phys-y := 0x100 diff --git a/arch/arm/mach-ns9xxx/board-a9m9750dev.c b/arch/arm/mach-ns9xxx/board-a9m9750dev.c index 0f65177f9e5..a494b71c019 100644 --- a/arch/arm/mach-ns9xxx/board-a9m9750dev.c +++ b/arch/arm/mach-ns9xxx/board-a9m9750dev.c @@ -8,15 +8,14 @@ * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. */ -#include <linux/platform_device.h> -#include <linux/serial_8250.h> #include <linux/irq.h> #include <asm/mach/map.h> #include <asm/gpio.h> #include <asm/arch-ns9xxx/board.h> -#include <asm/arch-ns9xxx/regs-sys.h> +#include <asm/arch-ns9xxx/processor-ns9360.h> +#include <asm/arch-ns9xxx/regs-sys-ns9360.h> #include <asm/arch-ns9xxx/regs-mem.h> #include <asm/arch-ns9xxx/regs-bbu.h> #include <asm/arch-ns9xxx/regs-board-a9m9750dev.h> @@ -105,9 +104,9 @@ void __init board_a9m9750dev_init_irq(void) int i; if (gpio_request(11, "board a9m9750dev extirq2") == 0) - ns9xxx_gpio_configure(11, 0, 1); + ns9360_gpio_configure(11, 0, 1); else - printk(KERN_ERR "%s: cannot get gpio 11 for IRQ_EXT2\n", + printk(KERN_ERR "%s: cannot get gpio 11 for IRQ_NS9XXX_EXT2\n", __func__); for (i = FPGA_IRQ(0); i <= FPGA_IRQ(7); ++i) { @@ -116,69 +115,16 @@ void __init board_a9m9750dev_init_irq(void) set_irq_flags(i, IRQF_VALID); } - /* IRQ_EXT2: level sensitive + active low */ + /* IRQ_NS9XXX_EXT2: level sensitive + active low */ eic = __raw_readl(SYS_EIC(2)); REGSET(eic, SYS_EIC, PLTY, AL); REGSET(eic, SYS_EIC, LVEDG, LEVEL); __raw_writel(eic, SYS_EIC(2)); - set_irq_chained_handler(IRQ_EXT2, + set_irq_chained_handler(IRQ_NS9XXX_EXT2, a9m9750dev_fpga_demux_handler); } -static struct plat_serial8250_port board_a9m9750dev_serial8250_port[] = { - { - .iobase = FPGA_UARTA_BASE, - .membase = (unsigned char*)FPGA_UARTA_BASE, - .mapbase = FPGA_UARTA_BASE, - .irq = IRQ_FPGA_UARTA, - .iotype = UPIO_MEM, - .uartclk = 18432000, - .regshift = 0, - .flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ, - }, { - .iobase = FPGA_UARTB_BASE, - .membase = (unsigned char*)FPGA_UARTB_BASE, - .mapbase = FPGA_UARTB_BASE, - .irq = IRQ_FPGA_UARTB, - .iotype = UPIO_MEM, - .uartclk = 18432000, - .regshift = 0, - .flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ, - }, { - .iobase = FPGA_UARTC_BASE, - .membase = (unsigned char*)FPGA_UARTC_BASE, - .mapbase = FPGA_UARTC_BASE, - .irq = IRQ_FPGA_UARTC, - .iotype = UPIO_MEM, - .uartclk = 18432000, - .regshift = 0, - .flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ, - }, { - .iobase = FPGA_UARTD_BASE, - .membase = (unsigned char*)FPGA_UARTD_BASE, - .mapbase = FPGA_UARTD_BASE, - .irq = IRQ_FPGA_UARTD, - .iotype = UPIO_MEM, - .uartclk = 18432000, - .regshift = 0, - .flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ, - }, { - /* end marker */ - }, -}; - -static struct platform_device board_a9m9750dev_serial_device = { - .name = "serial8250", - .dev = { - .platform_data = board_a9m9750dev_serial8250_port, - }, -}; - -static struct platform_device *board_a9m9750dev_devices[] __initdata = { - &board_a9m9750dev_serial_device, -}; - void __init board_a9m9750dev_init_machine(void) { u32 reg; @@ -210,7 +156,4 @@ void __init board_a9m9750dev_init_machine(void) __raw_writel(0x2, MEM_SMOED(0)); __raw_writel(0x6, MEM_SMRD(0)); __raw_writel(0x6, MEM_SMWD(0)); - - platform_add_devices(board_a9m9750dev_devices, - ARRAY_SIZE(board_a9m9750dev_devices)); } diff --git a/arch/arm/mach-ns9xxx/clock.c b/arch/arm/mach-ns9xxx/clock.c new file mode 100644 index 00000000000..f8639161068 --- /dev/null +++ b/arch/arm/mach-ns9xxx/clock.c @@ -0,0 +1,215 @@ +/* + * arch/arm/mach-ns9xxx/clock.c + * + * Copyright (C) 2007 by Digi International Inc. + * All rights reserved. + * + * 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. + */ +#include <linux/err.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/clk.h> +#include <linux/string.h> +#include <linux/platform_device.h> + +#include <asm/semaphore.h> +#include "clock.h" + +static LIST_HEAD(clocks); +static DEFINE_SPINLOCK(clk_lock); + +struct clk *clk_get(struct device *dev, const char *id) +{ + struct clk *p, *ret = NULL, *retgen = NULL; + unsigned long flags; + int idno; + + if (dev == NULL || dev->bus != &platform_bus_type) + idno = -1; + else + idno = to_platform_device(dev)->id; + + spin_lock_irqsave(&clk_lock, flags); + list_for_each_entry(p, &clocks, node) { + if (strcmp(id, p->name) == 0) { + if (p->id == idno) { + if (!try_module_get(p->owner)) + continue; + ret = p; + break; + } else if (p->id == -1) + /* remember match with id == -1 in case there is + * no clock for idno */ + retgen = p; + } + } + + if (!ret && retgen && try_module_get(retgen->owner)) + ret = retgen; + + if (ret) + ++ret->refcount; + + spin_unlock_irqrestore(&clk_lock, flags); + + return ret ? ret : ERR_PTR(-ENOENT); +} +EXPORT_SYMBOL(clk_get); + +void clk_put(struct clk *clk) +{ + module_put(clk->owner); + --clk->refcount; +} +EXPORT_SYMBOL(clk_put); + +static int clk_enable_unlocked(struct clk *clk) +{ + int ret = 0; + if (clk->parent) { + ret = clk_enable_unlocked(clk->parent); + if (ret) + return ret; + } + + if (clk->usage++ == 0 && clk->endisable) + ret = clk->endisable(clk, 1); + + return ret; +} + +int clk_enable(struct clk *clk) +{ + int ret; + unsigned long flags; + + spin_lock_irqsave(&clk_lock, flags); + + ret = clk_enable_unlocked(clk); + + spin_unlock_irqrestore(&clk_lock, flags); + + return ret; +} +EXPORT_SYMBOL(clk_enable); + +static void clk_disable_unlocked(struct clk *clk) +{ + if (--clk->usage == 0 && clk->endisable) + clk->endisable(clk, 0); + + if (clk->parent) + clk_disable_unlocked(clk->parent); +} + +void clk_disable(struct clk *clk) +{ + unsigned long flags; + + spin_lock_irqsave(&clk_lock, flags); + + clk_disable_unlocked(clk); + + spin_unlock_irqrestore(&clk_lock, flags); +} +EXPORT_SYMBOL(clk_disable); + +unsigned long clk_get_rate(struct clk *clk) +{ + if (clk->get_rate) + return clk->get_rate(clk); + + if (clk->rate) + return clk->rate; + + if (clk->parent) + return clk_get_rate(clk->parent); + + return 0; +} +EXPORT_SYMBOL(clk_get_rate); + +int clk_register(struct clk *clk) +{ + unsigned long flags; + + spin_lock_irqsave(&clk_lock, flags); + + list_add(&clk->node, &clocks); + + if (clk->parent) + ++clk->parent->refcount; + + spin_unlock_irqrestore(&clk_lock, flags); + + return 0; +} + +int clk_unregister(struct clk *clk) +{ + int ret = 0; + unsigned long flags; + + spin_lock_irqsave(&clk_lock, flags); + + if (clk->usage || clk->refcount) + ret = -EBUSY; + else + list_del(&clk->node); + + if (clk->parent) + --clk->parent->refcount; + + spin_unlock_irqrestore(&clk_lock, flags); + + return ret; +} + +#if defined CONFIG_DEBUG_FS + +#include <linux/debugfs.h> +#include <linux/seq_file.h> + +static int clk_debugfs_show(struct seq_file *s, void *null) +{ + unsigned long flags; + struct clk *p; + + spin_lock_irqsave(&clk_lock, flags); + + list_for_each_entry(p, &clocks, node) + seq_printf(s, "%s.%d: usage=%lu refcount=%lu rate=%lu\n", + p->name, p->id, p->usage, p->refcount, + p->usage ? clk_get_rate(p) : 0); + + spin_unlock_irqrestore(&clk_lock, flags); + + return 0; +} + +static int clk_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, clk_debugfs_show, NULL); +} + +static struct file_operations clk_debugfs_operations = { + .open = clk_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init clk_debugfs_init(void) +{ + struct dentry *dentry; + + dentry = debugfs_create_file("clk", S_IFREG | S_IRUGO, NULL, NULL, + &clk_debugfs_operations); + return IS_ERR(dentry) ? PTR_ERR(dentry) : 0; +} +subsys_initcall(clk_debugfs_init); + +#endif /* if defined CONFIG_DEBUG_FS */ diff --git a/arch/arm/mach-ns9xxx/clock.h b/arch/arm/mach-ns9xxx/clock.h new file mode 100644 index 00000000000..b86c30dd79e --- /dev/null +++ b/arch/arm/mach-ns9xxx/clock.h @@ -0,0 +1,35 @@ +/* + * arch/arm/mach-ns9xxx/clock.h + * + * Copyright (C) 2007 by Digi International Inc. + * All rights reserved. + * + * 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. + */ +#ifndef __NS9XXX_CLOCK_H +#define __NS9XXX_CLOCK_H + +#include <linux/list.h> + +struct clk { + struct module *owner; + const char *name; + int id; + + struct clk *parent; + + unsigned long rate; + int (*endisable)(struct clk *, int enable); + unsigned long (*get_rate)(struct clk *); + + struct list_head node; + unsigned long refcount; + unsigned long usage; +}; + +int clk_register(struct clk *clk); +int clk_unregister(struct clk *clk); + +#endif /* ifndef __NS9XXX_CLOCK_H */ diff --git a/arch/arm/mach-ns9xxx/generic.c b/arch/arm/mach-ns9xxx/generic.c index d742c921e34..1e0f467879c 100644 --- a/arch/arm/mach-ns9xxx/generic.c +++ b/arch/arm/mach-ns9xxx/generic.c @@ -1,7 +1,7 @@ /* * arch/arm/mach-ns9xxx/generic.c * - * Copyright (C) 2006 by Digi International Inc. + * Copyright (C) 2006,2007 by Digi International Inc. * All rights reserved. * * This program is free software; you can redistribute it and/or modify it @@ -11,34 +11,9 @@ #include <linux/kernel.h> #include <linux/init.h> #include <asm/memory.h> -#include <asm/page.h> -#include <asm/mach-types.h> -#include <asm/mach/map.h> -#include <asm/arch-ns9xxx/regs-sys.h> -#include <asm/arch-ns9xxx/regs-mem.h> -#include <asm/arch-ns9xxx/board.h> #include "generic.h" -static struct map_desc standard_io_desc[] __initdata = { - { /* BBus */ - .virtual = io_p2v(0x90000000), - .pfn = __phys_to_pfn(0x90000000), - .length = 0x00700000, - .type = MT_DEVICE, - }, { /* AHB */ - .virtual = io_p2v(0xa0100000), - .pfn = __phys_to_pfn(0xa0100000), - .length = 0x00900000, - .type = MT_DEVICE, - }, -}; - -void __init ns9xxx_map_io(void) -{ - iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc)); -} - void __init ns9xxx_init_machine(void) { } diff --git a/arch/arm/mach-ns9xxx/generic.h b/arch/arm/mach-ns9xxx/generic.h index 687e291773f..82493191aad 100644 --- a/arch/arm/mach-ns9xxx/generic.h +++ b/arch/arm/mach-ns9xxx/generic.h @@ -1,7 +1,7 @@ /* * arch/arm/mach-ns9xxx/generic.h * - * Copyright (C) 2006 by Digi International Inc. + * Copyright (C) 2006,2007 by Digi International Inc. * All rights reserved. * * This program is free software; you can redistribute it and/or modify it @@ -13,7 +13,4 @@ #include <linux/init.h> void __init ns9xxx_init_irq(void); -void __init ns9xxx_map_io(void); void __init ns9xxx_init_machine(void); - -extern struct sys_timer ns9xxx_timer; diff --git a/arch/arm/mach-ns9xxx/gpio-ns9360.c b/arch/arm/mach-ns9xxx/gpio-ns9360.c new file mode 100644 index 00000000000..cabfb879dda --- /dev/null +++ b/arch/arm/mach-ns9xxx/gpio-ns9360.c @@ -0,0 +1,118 @@ +/* + * arch/arm/mach-ns9xxx/gpio-ns9360.c + * + * Copyright (C) 2006,2007 by Digi International Inc. + * All rights reserved. + * + * 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. + */ +#include <linux/bug.h> +#include <linux/errno.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> + +#include <asm/arch-ns9xxx/regs-bbu.h> +#include <asm/arch-ns9xxx/processor-ns9360.h> + +#include "gpio-ns9360.h" + +static inline int ns9360_valid_gpio(unsigned gpio) +{ + return gpio <= 72; +} + +static inline void __iomem *ns9360_gpio_get_gconfaddr(unsigned gpio) +{ + if (gpio < 56) + return BBU_GCONFb1(gpio / 8); + else + /* + * this could be optimised away on + * ns9750 only builds, but it isn't ... + */ + return BBU_GCONFb2((gpio - 56) / 8); +} + +static inline void __iomem *ns9360_gpio_get_gctrladdr(unsigned gpio) +{ + if (gpio < 32) + return BBU_GCTRL1; + else if (gpio < 64) + return BBU_GCTRL2; + else + /* this could be optimised away on ns9750 only builds */ + return BBU_GCTRL3; +} + +static inline void __iomem *ns9360_gpio_get_gstataddr(unsigned gpio) +{ + if (gpio < 32) + return BBU_GSTAT1; + else if (gpio < 64) + return BBU_GSTAT2; + else + /* this could be optimised away on ns9750 only builds */ + return BBU_GSTAT3; +} + +/* + * each gpio can serve for 4 different purposes [0..3]. These are called + * "functions" and passed in the parameter func. Functions 0-2 are always some + * special things, function 3 is GPIO. If func == 3 dir specifies input or + * output, and with inv you can enable an inverter (independent of func). + */ +int __ns9360_gpio_configure(unsigned gpio, int dir, int inv, int func) +{ + void __iomem *conf = ns9360_gpio_get_gconfaddr(gpio); + u32 confval; + + confval = __raw_readl(conf); + REGSETIM_IDX(confval, BBU_GCONFx, DIR, gpio & 7, dir); + REGSETIM_IDX(confval, BBU_GCONFx, INV, gpio & 7, inv); + REGSETIM_IDX(confval, BBU_GCONFx, FUNC, gpio & 7, func); + __raw_writel(confval, conf); + + return 0; +} + +int ns9360_gpio_configure(unsigned gpio, int inv, int func) +{ + if (likely(ns9360_valid_gpio(gpio))) { + if (func == 3) { + printk(KERN_WARNING "use gpio_direction_input " + "or gpio_direction_output\n"); + return -EINVAL; + } else + return __ns9360_gpio_configure(gpio, 0, inv, func); + } else + return -EINVAL; +} +EXPORT_SYMBOL(ns9360_gpio_configure); + +int ns9360_gpio_get_value(unsigned gpio) +{ + void __iomem *stat = ns9360_gpio_get_gstataddr(gpio); + int ret; + + ret = 1 & (__raw_readl(stat) >> (gpio & 31)); + + return ret; +} + +void ns9360_gpio_set_value(unsigned gpio, int value) +{ + void __iomem *ctrl = ns9360_gpio_get_gctrladdr(gpio); + u32 ctrlval; + + ctrlval = __raw_readl(ctrl); + + if (value) + ctrlval |= 1 << (gpio & 31); + else + ctrlval &= ~(1 << (gpio & 31)); + + __raw_writel(ctrlval, ctrl); +} diff --git a/arch/arm/mach-ns9xxx/gpio-ns9360.h b/arch/arm/mach-ns9xxx/gpio-ns9360.h new file mode 100644 index 00000000000..131cd1715ca --- /dev/null +++ b/arch/arm/mach-ns9xxx/gpio-ns9360.h @@ -0,0 +1,13 @@ +/* + * arch/arm/mach-ns9xxx/gpio-ns9360.h + * + * Copyright (C) 2006,2007 by Digi International Inc. + * All rights reserved. + * + * 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. + */ +int __ns9360_gpio_configure(unsigned gpio, int dir, int inv, int func); +int ns9360_gpio_get_value(unsigned gpio); +void ns9360_gpio_set_value(unsigned gpio, int value); diff --git a/arch/arm/mach-ns9xxx/gpio.c b/arch/arm/mach-ns9xxx/gpio.c index 5286e9fc1d3..b3c963b0c8f 100644 --- a/arch/arm/mach-ns9xxx/gpio.c +++ b/arch/arm/mach-ns9xxx/gpio.c @@ -1,7 +1,7 @@ /* * arch/arm/mach-ns9xxx/gpio.c * - * Copyright (C) 2006 by Digi International Inc. + * Copyright (C) 2006,2007 by Digi International Inc. * All rights reserved. * * This program is free software; you can redistribute it and/or modify it @@ -15,12 +15,13 @@ #include <asm/arch-ns9xxx/gpio.h> #include <asm/arch-ns9xxx/processor.h> -#include <asm/arch-ns9xxx/regs-bbu.h> -#include <asm/io.h> +#include <asm/arch-ns9xxx/processor-ns9360.h> #include <asm/bug.h> #include <asm/types.h> #include <asm/bitops.h> +#include "gpio-ns9360.h" + #if defined(CONFIG_PROCESSOR_NS9360) #define GPIO_MAX 72 #elif defined(CONFIG_PROCESSOR_NS9750) @@ -45,41 +46,10 @@ static inline int ns9xxx_valid_gpio(unsigned gpio) return gpio <= 49; else #endif + { BUG(); -} - -static inline void __iomem *ns9xxx_gpio_get_gconfaddr(unsigned gpio) -{ - if (gpio < 56) - return BBU_GCONFb1(gpio / 8); - else - /* - * this could be optimised away on - * ns9750 only builds, but it isn't ... - */ - return BBU_GCONFb2((gpio - 56) / 8); -} - -static inline void __iomem *ns9xxx_gpio_get_gctrladdr(unsigned gpio) -{ - if (gpio < 32) - return BBU_GCTRL1; - else if (gpio < 64) - return BBU_GCTRL2; - else - /* this could be optimised away on ns9750 only builds */ - return BBU_GCTRL3; -} - -static inline void __iomem *ns9xxx_gpio_get_gstataddr(unsigned gpio) -{ - if (gpio < 32) - return BBU_GSTAT1; - else if (gpio < 64) - return BBU_GSTAT2; - else - /* this could be optimised away on ns9750 only builds */ - return BBU_GSTAT3; + return 0; + } } int gpio_request(unsigned gpio, const char *label) @@ -98,49 +68,24 @@ void gpio_free(unsigned gpio) } EXPORT_SYMBOL(gpio_free); -/* - * each gpio can serve for 4 different purposes [0..3]. These are called - * "functions" and passed in the parameter func. Functions 0-2 are always some - * special things, function 3 is GPIO. If func == 3 dir specifies input or - * output, and with inv you can enable an inverter (independent of func). - */ -static int __ns9xxx_gpio_configure(unsigned gpio, int dir, int inv, int func) +int gpio_direction_input(unsigned gpio) { - void __iomem *conf = ns9xxx_gpio_get_gconfaddr(gpio); - u32 confval; - unsigned long flags; - - spin_lock_irqsave(&gpio_lock, flags); - - confval = __raw_readl(conf); - REGSETIM_IDX(confval, BBU_GCONFx, DIR, gpio & 7, dir); - REGSETIM_IDX(confval, BBU_GCONFx, INV, gpio & 7, inv); - REGSETIM_IDX(confval, BBU_GCONFx, FUNC, gpio & 7, func); - __raw_writel(confval, conf); + if (likely(ns9xxx_valid_gpio(gpio))) { + int ret = -EINVAL; + unsigned long flags; - spin_unlock_irqrestore(&gpio_lock, flags); + spin_lock_irqsave(&gpio_lock, flags); +#if defined(CONFIG_PROCESSOR_NS9360) + if (processor_is_ns9360()) + ret = __ns9360_gpio_configure(gpio, 0, 0, 3); + else +#endif + BUG(); - return 0; -} + spin_unlock_irqrestore(&gpio_lock, flags); -int ns9xxx_gpio_configure(unsigned gpio, int inv, int func) -{ - if (likely(ns9xxx_valid_gpio(gpio))) { - if (func == 3) { - printk(KERN_WARNING "use gpio_direction_input " - "or gpio_direction_output\n"); - return -EINVAL; - } else - return __ns9xxx_gpio_configure(gpio, 0, inv, func); - } else - return -EINVAL; -} -EXPORT_SYMBOL(ns9xxx_gpio_configure); + return ret; -int gpio_direction_input(unsigned gpio) -{ - if (likely(ns9xxx_valid_gpio(gpio))) { - return __ns9xxx_gpio_configure(gpio, 0, 0, 3); } else return -EINVAL; } @@ -149,9 +94,22 @@ EXPORT_SYMBOL(gpio_direction_input); int gpio_direction_output(unsigned gpio, int value) { if (likely(ns9xxx_valid_gpio(gpio))) { + int ret = -EINVAL; + unsigned long flags; + gpio_set_value(gpio, value); - return __ns9xxx_gpio_configure(gpio, 1, 0, 3); + spin_lock_irqsave(&gpio_lock, flags); +#if defined(CONFIG_PROCESSOR_NS9360) + if (processor_is_ns9360()) + ret = __ns9360_gpio_configure(gpio, 1, 0, 3); + else +#endif + BUG(); + + spin_unlock_irqrestore(&gpio_lock, flags); + + return ret; } else return -EINVAL; } @@ -159,31 +117,28 @@ EXPORT_SYMBOL(gpio_direction_output); int gpio_get_value(unsigned gpio) { - void __iomem *stat = ns9xxx_gpio_get_gstataddr(gpio); - int ret; - - ret = 1 & (__raw_readl(stat) >> (gpio & 31)); - - return ret; +#if defined(CONFIG_PROCESSOR_NS9360) + if (processor_is_ns9360()) + return ns9360_gpio_get_value(gpio); + else +#endif + { + BUG(); + return -EINVAL; + } } EXPORT_SYMBOL(gpio_get_value); void gpio_set_value(unsigned gpio, int value) { - void __iomem *ctrl = ns9xxx_gpio_get_gctrladdr(gpio); - u32 ctrlval; unsigned long flags; - spin_lock_irqsave(&gpio_lock, flags); - - ctrlval = __raw_readl(ctrl); - - if (value) - ctrlval |= 1 << (gpio & 31); +#if defined(CONFIG_PROCESSOR_NS9360) + if (processor_is_ns9360()) + ns9360_gpio_set_value(gpio, value); else - ctrlval &= ~(1 << (gpio & 31)); - - __raw_writel(ctrlval, ctrl); +#endif + BUG(); spin_unlock_irqrestore(&gpio_lock, flags); } diff --git a/arch/arm/mach-ns9xxx/irq.c b/arch/arm/mach-ns9xxx/irq.c index 00001b874e9..36e5835e609 100644 --- a/arch/arm/mach-ns9xxx/irq.c +++ b/arch/arm/mach-ns9xxx/irq.c @@ -9,21 +9,27 @@ * the Free Software Foundation. */ #include <linux/interrupt.h> +#include <linux/kernel_stat.h> #include <asm/io.h> #include <asm/mach/irq.h> #include <asm/mach-types.h> -#include <asm/arch-ns9xxx/regs-sys.h> +#include <asm/arch-ns9xxx/regs-sys-common.h> #include <asm/arch-ns9xxx/irqs.h> #include <asm/arch-ns9xxx/board.h> #include "generic.h" +/* simple interrupt prio table: prio(x) < prio(y) <=> x < y */ +#define irq2prio(i) (i) +#define prio2irq(p) (p) + static void ns9xxx_mask_irq(unsigned int irq) { /* XXX: better use cpp symbols */ - u32 ic = __raw_readl(SYS_IC(irq / 4)); - ic &= ~(1 << (7 + 8 * (3 - (irq & 3)))); - __raw_writel(ic, SYS_IC(irq / 4)); + int prio = irq2prio(irq); + u32 ic = __raw_readl(SYS_IC(prio / 4)); + ic &= ~(1 << (7 + 8 * (3 - (prio & 3)))); + __raw_writel(ic, SYS_IC(prio / 4)); } static void ns9xxx_ack_irq(unsigned int irq) @@ -40,9 +46,10 @@ static void ns9xxx_maskack_irq(unsigned int irq) static void ns9xxx_unmask_irq(unsigned int irq) { /* XXX: better use cpp symbols */ - u32 ic = __raw_readl(SYS_IC(irq / 4)); - ic |= 1 << (7 + 8 * (3 - (irq & 3))); - __raw_writel(ic, SYS_IC(irq / 4)); + int prio = irq2prio(irq); + u32 ic = __raw_readl(SYS_IC(prio / 4)); + ic |= 1 << (7 + 8 * (3 - (prio & 3))); + __raw_writel(ic, SYS_IC(prio / 4)); } static struct irq_chip ns9xxx_chip = { @@ -52,24 +59,61 @@ static struct irq_chip ns9xxx_chip = { .unmask = ns9xxx_unmask_irq, }; +#if 0 +#define handle_irq handle_level_irq +#else +void handle_prio_irq(unsigned int irq, struct irq_desc *desc) +{ + unsigned int cpu = smp_processor_id(); + struct irqaction *action; + irqreturn_t action_ret; + + spin_lock(&desc->lock); + + if (unlikely(desc->status & IRQ_INPROGRESS)) + goto out_unlock; + + desc->status &= ~(IRQ_REPLAY | IRQ_WAITING); + kstat_cpu(cpu).irqs[irq]++; + + action = desc->action; + if (unlikely(!action || (desc->status & IRQ_DISABLED))) + goto out_unlock; + + desc->status |= IRQ_INPROGRESS; + spin_unlock(&desc->lock); + + action_ret = handle_IRQ_event(irq, action); + + spin_lock(&desc->lock); + desc->status &= ~IRQ_INPROGRESS; + if (!(desc->status & IRQ_DISABLED) && desc->chip->ack) + desc->chip->ack(irq); + +out_unlock: + spin_unlock(&desc->lock); +} +#define handle_irq handle_prio_irq +#endif + void __init ns9xxx_init_irq(void) { int i; /* disable all IRQs */ for (i = 0; i < 8; ++i) - __raw_writel((4 * i) << 24 | (4 * i + 1) << 16 | - (4 * i + 2) << 8 | (4 * i + 3), SYS_IC(i)); + __raw_writel(prio2irq(4 * i) << 24 | + prio2irq(4 * i + 1) << 16 | + prio2irq(4 * i + 2) << 8 | + prio2irq(4 * i + 3), + SYS_IC(i)); - /* simple interrupt prio table: - * prio(x) < prio(y) <=> x < y - */ for (i = 0; i < 32; ++i) - __raw_writel(i, SYS_IVA(i)); + __raw_writel(prio2irq(i), SYS_IVA(i)); - for (i = IRQ_WATCHDOG; i <= IRQ_EXT3; ++i) { + for (i = 0; i <= 31; ++i) { set_irq_chip(i, &ns9xxx_chip); - set_irq_handler(i, handle_level_irq); + set_irq_handler(i, handle_irq); set_irq_flags(i, IRQF_VALID); } } diff --git a/arch/arm/mach-ns9xxx/mach-cc9p9360dev.c b/arch/arm/mach-ns9xxx/mach-cc9p9360dev.c index 760c9d0db7c..9623fff6b3b 100644 --- a/arch/arm/mach-ns9xxx/mach-cc9p9360dev.c +++ b/arch/arm/mach-ns9xxx/mach-cc9p9360dev.c @@ -1,7 +1,7 @@ /* * arch/arm/mach-ns9xxx/mach-cc9p9360dev.c * - * Copyright (C) 2006 by Digi International Inc. + * Copyright (C) 2006,2007 by Digi International Inc. * All rights reserved. * * This program is free software; you can redistribute it and/or modify it @@ -11,12 +11,14 @@ #include <asm/mach/arch.h> #include <asm/mach-types.h> +#include <asm/arch-ns9xxx/processor-ns9360.h> + #include "board-a9m9750dev.h" #include "generic.h" static void __init mach_cc9p9360dev_map_io(void) { - ns9xxx_map_io(); + ns9360_map_io(); board_a9m9750dev_map_io(); } @@ -36,6 +38,6 @@ MACHINE_START(CC9P9360DEV, "Digi ConnectCore 9P 9360 on an A9M9750 Devboard") .map_io = mach_cc9p9360dev_map_io, .init_irq = mach_cc9p9360dev_init_irq, .init_machine = mach_cc9p9360dev_init_machine, - .timer = &ns9xxx_timer, + .timer = &ns9360_timer, .boot_params = 0x100, MACHINE_END diff --git a/arch/arm/mach-ns9xxx/mach-cc9p9360js.c b/arch/arm/mach-ns9xxx/mach-cc9p9360js.c index 85c8b41105c..fcc815bdd29 100644 --- a/arch/arm/mach-ns9xxx/mach-cc9p9360js.c +++ b/arch/arm/mach-ns9xxx/mach-cc9p9360js.c @@ -1,7 +1,7 @@ /* * arch/arm/mach-ns9xxx/mach-cc9p9360js.c * - * Copyright (C) 2006 by Digi International Inc. + * Copyright (C) 2006,2007 by Digi International Inc. * All rights reserved. * * This program is free software; you can redistribute it and/or modify it @@ -11,6 +11,8 @@ #include <asm/mach/arch.h> #include <asm/mach-types.h> +#include <asm/arch-ns9xxx/processor-ns9360.h> + #include "board-jscc9p9360.h" #include "generic.h" @@ -21,9 +23,9 @@ static void __init mach_cc9p9360js_init_machine(void) } MACHINE_START(CC9P9360JS, "Digi ConnectCore 9P 9360 on an JSCC9P9360 Devboard") - .map_io = ns9xxx_map_io, + .map_io = ns9360_map_io, .init_irq = ns9xxx_init_irq, .init_machine = mach_cc9p9360js_init_machine, - .timer = &ns9xxx_timer, + .timer = &ns9360_timer, .boot_params = 0x100, MACHINE_END diff --git a/arch/arm/mach-ns9xxx/plat-serial8250.c b/arch/arm/mach-ns9xxx/plat-serial8250.c new file mode 100644 index 00000000000..5aa5d9baf8c --- /dev/null +++ b/arch/arm/mach-ns9xxx/plat-serial8250.c @@ -0,0 +1,69 @@ +/* + * arch/arm/mach-ns9xxx/plat-serial8250.c + * + * Copyright (C) 2008 by Digi International Inc. + * All rights reserved. + * + * 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. + */ +#include <linux/platform_device.h> +#include <linux/serial_8250.h> + +#include <asm/arch-ns9xxx/regs-board-a9m9750dev.h> +#include <asm/arch-ns9xxx/board.h> + +#define DRIVER_NAME "serial8250" + +static int __init ns9xxx_plat_serial8250_init(void) +{ + struct plat_serial8250_port *pdata; + struct platform_device *pdev; + int ret = -ENOMEM; + int i; + + if (!board_is_a9m9750dev()) + return -ENODEV; + + pdev = platform_device_alloc(DRIVER_NAME, 0); + if (!pdev) + goto err; + + pdata = kzalloc(5 * sizeof(*pdata), GFP_KERNEL); + if (!pdata) + goto err; + + pdev->dev.platform_data = pdata; + + pdata[0].iobase = FPGA_UARTA_BASE; + pdata[1].iobase = FPGA_UARTB_BASE; + pdata[2].iobase = FPGA_UARTC_BASE; + pdata[3].iobase = FPGA_UARTD_BASE; + + for (i = 0; i < 4; ++i) { + pdata[i].membase = (void __iomem *)pdata[i].iobase; + pdata[i].mapbase = pdata[i].iobase; + pdata[i].iotype = UPIO_MEM; + pdata[i].uartclk = 18432000; + pdata[i].flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; + } + + pdata[0].irq = IRQ_FPGA_UARTA; + pdata[1].irq = IRQ_FPGA_UARTB; + pdata[2].irq = IRQ_FPGA_UARTC; + pdata[3].irq = IRQ_FPGA_UARTD; + + ret = platform_device_add(pdev); + if (ret) { +err: + platform_device_put(pdev); + + printk(KERN_WARNING "Could not add %s (errno=%d)\n", + DRIVER_NAME, ret); + } + + return 0; +} + +arch_initcall(ns9xxx_plat_serial8250_init); diff --git a/arch/arm/mach-ns9xxx/processor-ns9360.c b/arch/arm/mach-ns9xxx/processor-ns9360.c new file mode 100644 index 00000000000..2bee0b7fccb --- /dev/null +++ b/arch/arm/mach-ns9xxx/processor-ns9360.c @@ -0,0 +1,54 @@ +/* + * arch/arm/mach-ns9xxx/processor-ns9360.c + * + * Copyright (C) 2007 by Digi International Inc. + * All rights reserved. + * + * 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. + */ +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/slab.h> + +#include <asm/page.h> +#include <asm/mach/map.h> +#include <asm/arch-ns9xxx/processor-ns9360.h> +#include <asm/arch-ns9xxx/regs-sys-ns9360.h> + +void ns9360_reset(char mode) +{ + u32 reg; + + reg = __raw_readl(SYS_PLL) >> 16; + REGSET(reg, SYS_PLL, SWC, YES); + __raw_writel(reg, SYS_PLL); +} + +#define CRYSTAL 29491200 /* Hz */ +unsigned long ns9360_systemclock(void) +{ + u32 pll = __raw_readl(SYS_PLL); + return CRYSTAL * (REGGETIM(pll, SYS_PLL, ND) + 1) + >> REGGETIM(pll, SYS_PLL, FS); +} + +static struct map_desc ns9360_io_desc[] __initdata = { + { /* BBus */ + .virtual = io_p2v(0x90000000), + .pfn = __phys_to_pfn(0x90000000), + .length = 0x00700000, + .type = MT_DEVICE, + }, { /* AHB */ + .virtual = io_p2v(0xa0100000), + .pfn = __phys_to_pfn(0xa0100000), + .length = 0x00900000, + .type = MT_DEVICE, + }, +}; + +void __init ns9360_map_io(void) +{ + iotable_init(ns9360_io_desc, ARRAY_SIZE(ns9360_io_desc)); +} diff --git a/arch/arm/mach-ns9xxx/time.c b/arch/arm/mach-ns9xxx/time-ns9360.c index c3dd1f4acb9..4d573c9793e 100644 --- a/arch/arm/mach-ns9xxx/time.c +++ b/arch/arm/mach-ns9xxx/time-ns9360.c @@ -1,7 +1,7 @@ /* - * arch/arm/mach-ns9xxx/time.c + * arch/arm/mach-ns9xxx/time-ns9360.c * - * Copyright (C) 2006 by Digi International Inc. + * Copyright (C) 2006,2007 by Digi International Inc. * All rights reserved. * * This program is free software; you can redistribute it and/or modify it @@ -15,8 +15,8 @@ #include <linux/clocksource.h> #include <linux/clockchips.h> -#include <asm/arch-ns9xxx/regs-sys.h> -#include <asm/arch-ns9xxx/clock.h> +#include <asm/arch-ns9xxx/processor-ns9360.h> +#include <asm/arch-ns9xxx/regs-sys-ns9360.h> #include <asm/arch-ns9xxx/irqs.h> #include <asm/arch/system.h> #include "generic.h" @@ -25,26 +25,26 @@ #define TIMER_CLOCKEVENT 1 static u32 latch; -static cycle_t ns9xxx_clocksource_read(void) +static cycle_t ns9360_clocksource_read(void) { return __raw_readl(SYS_TR(TIMER_CLOCKSOURCE)); } -static struct clocksource ns9xxx_clocksource = { - .name = "ns9xxx-timer" __stringify(TIMER_CLOCKSOURCE), +static struct clocksource ns9360_clocksource = { + .name = "ns9360-timer" __stringify(TIMER_CLOCKSOURCE), .rating = 300, - .read = ns9xxx_clocksource_read, + .read = ns9360_clocksource_read, .mask = CLOCKSOURCE_MASK(32), .shift = 20, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -static void ns9xxx_clockevent_setmode(enum clock_event_mode mode, +static void ns9360_clockevent_setmode(enum clock_event_mode mode, struct clock_event_device *clk) { u32 tc = __raw_readl(SYS_TC(TIMER_CLOCKEVENT)); - switch(mode) { + switch (mode) { case CLOCK_EVT_MODE_PERIODIC: __raw_writel(latch, SYS_TRC(TIMER_CLOCKEVENT)); REGSET(tc, SYS_TCx, REN, EN); @@ -69,7 +69,7 @@ static void ns9xxx_clockevent_setmode(enum clock_event_mode mode, __raw_writel(tc, SYS_TC(TIMER_CLOCKEVENT)); } -static int ns9xxx_clockevent_setnextevent(unsigned long evt, +static int ns9360_clockevent_setnextevent(unsigned long evt, struct clock_event_device *clk) { u32 tc = __raw_readl(SYS_TC(TIMER_CLOCKEVENT)); @@ -88,20 +88,20 @@ static int ns9xxx_clockevent_setnextevent(unsigned long evt, return 0; } -static struct clock_event_device ns9xxx_clockevent_device = { - .name = "ns9xxx-timer" __stringify(TIMER_CLOCKEVENT), +static struct clock_event_device ns9360_clockevent_device = { + .name = "ns9360-timer" __stringify(TIMER_CLOCKEVENT), .shift = 20, .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, - .set_mode = ns9xxx_clockevent_setmode, - .set_next_event = ns9xxx_clockevent_setnextevent, + .set_mode = ns9360_clockevent_setmode, + .set_next_event = ns9360_clockevent_setnextevent, }; -static irqreturn_t ns9xxx_clockevent_handler(int irq, void *dev_id) +static irqreturn_t ns9360_clockevent_handler(int irq, void *dev_id) { - int timerno = irq - IRQ_TIMER0; + int timerno = irq - IRQ_NS9360_TIMER0; u32 tc; - struct clock_event_device *evt = &ns9xxx_clockevent_device; + struct clock_event_device *evt = &ns9360_clockevent_device; /* clear irq */ tc = __raw_readl(SYS_TC(timerno)); @@ -119,13 +119,13 @@ static irqreturn_t ns9xxx_clockevent_handler(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction ns9xxx_clockevent_action = { - .name = "ns9xxx-timer" __stringify(TIMER_CLOCKEVENT), +static struct irqaction ns9360_clockevent_action = { + .name = "ns9360-timer" __stringify(TIMER_CLOCKEVENT), .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, - .handler = ns9xxx_clockevent_handler, + .handler = ns9360_clockevent_handler, }; -static void __init ns9xxx_timer_init(void) +static void __init ns9360_timer_init(void) { int tc; @@ -148,12 +148,12 @@ static void __init ns9xxx_timer_init(void) __raw_writel(tc, SYS_TC(TIMER_CLOCKSOURCE)); - ns9xxx_clocksource.mult = clocksource_hz2mult(ns9xxx_cpuclock(), - ns9xxx_clocksource.shift); + ns9360_clocksource.mult = clocksource_hz2mult(ns9360_cpuclock(), + ns9360_clocksource.shift); - clocksource_register(&ns9xxx_clocksource); + clocksource_register(&ns9360_clocksource); - latch = SH_DIV(ns9xxx_cpuclock(), HZ, 0); + latch = SH_DIV(ns9360_cpuclock(), HZ, 0); tc = __raw_readl(SYS_TC(TIMER_CLOCKEVENT)); REGSET(tc, SYS_TCx, TEN, DIS); @@ -166,19 +166,20 @@ static void __init ns9xxx_timer_init(void) REGSET(tc, SYS_TCx, REN, EN); __raw_writel(tc, SYS_TC(TIMER_CLOCKEVENT)); - ns9xxx_clockevent_device.mult = div_sc(ns9xxx_cpuclock(), - NSEC_PER_SEC, ns9xxx_clockevent_device.shift); - ns9xxx_clockevent_device.max_delta_ns = - clockevent_delta2ns(-1, &ns9xxx_clockevent_device); - ns9xxx_clockevent_device.min_delta_ns = - clockevent_delta2ns(1, &ns9xxx_clockevent_device); + ns9360_clockevent_device.mult = div_sc(ns9360_cpuclock(), + NSEC_PER_SEC, ns9360_clockevent_device.shift); + ns9360_clockevent_device.max_delta_ns = + clockevent_delta2ns(-1, &ns9360_clockevent_device); + ns9360_clockevent_device.min_delta_ns = + clockevent_delta2ns(1, &ns9360_clockevent_device); - ns9xxx_clockevent_device.cpumask = cpumask_of_cpu(0); - clockevents_register_device(&ns9xxx_clockevent_device); + ns9360_clockevent_device.cpumask = cpumask_of_cpu(0); + clockevents_register_device(&ns9360_clockevent_device); - setup_irq(IRQ_TIMER0 + TIMER_CLOCKEVENT, &ns9xxx_clockevent_action); + setup_irq(IRQ_NS9360_TIMER0 + TIMER_CLOCKEVENT, + &ns9360_clockevent_action); } -struct sys_timer ns9xxx_timer = { - .init = ns9xxx_timer_init, +struct sys_timer ns9360_timer = { + .init = ns9360_timer_init, }; |