diff options
Diffstat (limited to 'arch/arm/mach-sa1100')
| -rw-r--r-- | arch/arm/mach-sa1100/clock.c | 100 | ||||
| -rw-r--r-- | arch/arm/mach-sa1100/collie_pm.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-sa1100/dma.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-sa1100/include/mach/io.h | 8 | ||||
| -rw-r--r-- | arch/arm/mach-sa1100/include/mach/memory.h | 13 |
5 files changed, 32 insertions, 93 deletions
diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c index 43c30f84abf2..dab3c6347a8f 100644 --- a/arch/arm/mach-sa1100/clock.c +++ b/arch/arm/mach-sa1100/clock.c @@ -3,6 +3,7 @@ */ #include <linux/module.h> #include <linux/kernel.h> +#include <linux/device.h> #include <linux/list.h> #include <linux/errno.h> #include <linux/err.h> @@ -14,36 +15,39 @@ #include <mach/hardware.h> /* - * Very simple clock implementation - we only have one clock to - * deal with at the moment, so we only match using the "name". + * Very simple clock implementation - we only have one clock to deal with. */ struct clk { - struct list_head node; - unsigned long rate; - const char *name; unsigned int enabled; - void (*enable)(void); - void (*disable)(void); }; -static LIST_HEAD(clocks); -static DEFINE_MUTEX(clocks_mutex); +static void clk_gpio27_enable(void) +{ + /* + * First, set up the 3.6864MHz clock on GPIO 27 for the SA-1111: + * (SA-1110 Developer's Manual, section 9.1.2.1) + */ + GAFR |= GPIO_32_768kHz; + GPDR |= GPIO_32_768kHz; + TUCR = TUCR_3_6864MHz; +} + +static void clk_gpio27_disable(void) +{ + TUCR = 0; + GPDR &= ~GPIO_32_768kHz; + GAFR &= ~GPIO_32_768kHz; +} + +static struct clk clk_gpio27; + static DEFINE_SPINLOCK(clocks_lock); struct clk *clk_get(struct device *dev, const char *id) { - struct clk *p, *clk = ERR_PTR(-ENOENT); - - mutex_lock(&clocks_mutex); - list_for_each_entry(p, &clocks, node) { - if (strcmp(id, p->name) == 0) { - clk = p; - break; - } - } - mutex_unlock(&clocks_mutex); + const char *devname = dev_name(dev); - return clk; + return strcmp(devname, "sa1111.0") ? ERR_PTR(-ENOENT) : &clk_gpio27; } EXPORT_SYMBOL(clk_get); @@ -58,7 +62,7 @@ int clk_enable(struct clk *clk) spin_lock_irqsave(&clocks_lock, flags); if (clk->enabled++ == 0) - clk->enable(); + clk_gpio27_enable(); spin_unlock_irqrestore(&clocks_lock, flags); return 0; } @@ -72,63 +76,13 @@ void clk_disable(struct clk *clk) spin_lock_irqsave(&clocks_lock, flags); if (--clk->enabled == 0) - clk->disable(); + clk_gpio27_disable(); spin_unlock_irqrestore(&clocks_lock, flags); } EXPORT_SYMBOL(clk_disable); unsigned long clk_get_rate(struct clk *clk) { - return clk->rate; + return 3686400; } EXPORT_SYMBOL(clk_get_rate); - - -static void clk_gpio27_enable(void) -{ - /* - * First, set up the 3.6864MHz clock on GPIO 27 for the SA-1111: - * (SA-1110 Developer's Manual, section 9.1.2.1) - */ - GAFR |= GPIO_32_768kHz; - GPDR |= GPIO_32_768kHz; - TUCR = TUCR_3_6864MHz; -} - -static void clk_gpio27_disable(void) -{ - TUCR = 0; - GPDR &= ~GPIO_32_768kHz; - GAFR &= ~GPIO_32_768kHz; -} - -static struct clk clk_gpio27 = { - .name = "SA1111_CLK", - .rate = 3686400, - .enable = clk_gpio27_enable, - .disable = clk_gpio27_disable, -}; - -int clk_register(struct clk *clk) -{ - mutex_lock(&clocks_mutex); - list_add(&clk->node, &clocks); - mutex_unlock(&clocks_mutex); - return 0; -} -EXPORT_SYMBOL(clk_register); - -void clk_unregister(struct clk *clk) -{ - mutex_lock(&clocks_mutex); - list_del(&clk->node); - mutex_unlock(&clocks_mutex); -} -EXPORT_SYMBOL(clk_unregister); - -static int __init clk_init(void) -{ - clk_register(&clk_gpio27); - return 0; -} -arch_initcall(clk_init); diff --git a/arch/arm/mach-sa1100/collie_pm.c b/arch/arm/mach-sa1100/collie_pm.c index b1161fc80602..947883a483df 100644 --- a/arch/arm/mach-sa1100/collie_pm.c +++ b/arch/arm/mach-sa1100/collie_pm.c @@ -26,7 +26,7 @@ #include <asm/irq.h> #include <mach/hardware.h> #include <asm/hardware/scoop.h> -#include <asm/dma.h> +#include <mach/dma.h> #include <mach/collie.h> #include <asm/mach/sharpsl_param.h> #include <asm/hardware/sharpsl_pm.h> diff --git a/arch/arm/mach-sa1100/dma.c b/arch/arm/mach-sa1100/dma.c index f990a3e85846..3f445ffd99f8 100644 --- a/arch/arm/mach-sa1100/dma.c +++ b/arch/arm/mach-sa1100/dma.c @@ -19,7 +19,7 @@ #include <asm/system.h> #include <asm/irq.h> #include <mach/hardware.h> -#include <asm/dma.h> +#include <mach/dma.h> #undef DEBUG diff --git a/arch/arm/mach-sa1100/include/mach/io.h b/arch/arm/mach-sa1100/include/mach/io.h index 0c070a6149bc..d8b43f3dcd2d 100644 --- a/arch/arm/mach-sa1100/include/mach/io.h +++ b/arch/arm/mach-sa1100/include/mach/io.h @@ -16,11 +16,7 @@ * We don't actually have real ISA nor PCI buses, but there is so many * drivers out there that might just work if we fake them... */ -static inline void __iomem *__io(unsigned long addr) -{ - return (void __iomem *)addr; -} -#define __io(a) __io(a) -#define __mem_pci(a) (a) +#define __io(a) __typesafe_io(a) +#define __mem_pci(a) (a) #endif diff --git a/arch/arm/mach-sa1100/include/mach/memory.h b/arch/arm/mach-sa1100/include/mach/memory.h index 1c127b68581d..e9f8eed900f5 100644 --- a/arch/arm/mach-sa1100/include/mach/memory.h +++ b/arch/arm/mach-sa1100/include/mach/memory.h @@ -23,23 +23,12 @@ void sa1111_adjust_zones(int node, unsigned long *size, unsigned long *holes); sa1111_adjust_zones(node, size, holes) #define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_1M - 1) +#define MAX_DMA_ADDRESS (PAGE_OFFSET + SZ_1M) #endif #endif /* - * Virtual view <-> DMA view memory address translations - * virt_to_bus: Used to translate the virtual address to an - * address suitable to be passed to set_dma_addr - * bus_to_virt: Used to convert an address for DMA operations - * to an address that the kernel can use. - * - * On the SA1100, bus addresses are equivalent to physical addresses. - */ -#define __virt_to_bus(x) __virt_to_phys(x) -#define __bus_to_virt(x) __phys_to_virt(x) - -/* * Because of the wide memory address space between physical RAM banks on the * SA1100, it's much convenient to use Linux's SparseMEM support to implement * our memory map representation. Assuming all memory nodes have equal access |