diff options
Diffstat (limited to 'include/asm-arm/arch-ns9xxx')
-rw-r--r-- | include/asm-arm/arch-ns9xxx/clock.h | 6 | ||||
-rw-r--r-- | include/asm-arm/arch-ns9xxx/gpio.h | 47 | ||||
-rw-r--r-- | include/asm-arm/arch-ns9xxx/hardware.h | 47 | ||||
-rw-r--r-- | include/asm-arm/arch-ns9xxx/regs-board-a9m9750dev.h | 4 | ||||
-rw-r--r-- | include/asm-arm/arch-ns9xxx/system.h | 4 |
5 files changed, 83 insertions, 25 deletions
diff --git a/include/asm-arm/arch-ns9xxx/clock.h b/include/asm-arm/arch-ns9xxx/clock.h index bf30cbdcc2bf..b943d3a92a1d 100644 --- a/include/asm-arm/arch-ns9xxx/clock.h +++ b/include/asm-arm/arch-ns9xxx/clock.h @@ -19,7 +19,7 @@ static inline u32 ns9xxx_systemclock(void) __attribute__((const)); static inline u32 ns9xxx_systemclock(void) { - u32 pll = SYS_PLL; + u32 pll = __raw_readl(SYS_PLL); /* * The system clock should be a multiple of HZ * TIMERCLOCKSELECT (in @@ -46,8 +46,8 @@ static inline u32 ns9xxx_systemclock(void) * * Fine. */ - return CRYSTAL * (REGGET(pll, SYS_PLL, ND) + 1) - >> REGGET(pll, SYS_PLL, FS); + return CRYSTAL * (REGGETIM(pll, SYS_PLL, ND) + 1) + >> REGGETIM(pll, SYS_PLL, FS); } static inline u32 ns9xxx_cpuclock(void) __attribute__((const)); diff --git a/include/asm-arm/arch-ns9xxx/gpio.h b/include/asm-arm/arch-ns9xxx/gpio.h new file mode 100644 index 000000000000..adbca08583c0 --- /dev/null +++ b/include/asm-arm/arch-ns9xxx/gpio.h @@ -0,0 +1,47 @@ +/* + * include/asm-arm/arch-ns9xxx/gpio.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 __ASM_ARCH_GPIO_H +#define __ASM_ARCH_GPIO_H + +#include <asm/errno.h> + +int gpio_request(unsigned gpio, const char *label); + +void gpio_free(unsigned gpio); + +int ns9xxx_gpio_configure(unsigned gpio, int inv, int func); + +int gpio_direction_input(unsigned gpio); + +int gpio_direction_output(unsigned gpio, int value); + +int gpio_get_value(unsigned gpio); + +void gpio_set_value(unsigned gpio, int value); + +/* + * ns9xxx can use gpio pins to trigger an irq, but it's not generic + * enough to be supported by the gpio_to_irq/irq_to_gpio interface + */ +static inline int gpio_to_irq(unsigned gpio) +{ + return -EINVAL; +} + +static inline int irq_to_gpio(unsigned irq) +{ + return -EINVAL; +} + +/* get the cansleep() stubs */ +#include <asm-generic/gpio.h> + +#endif /* ifndef __ASM_ARCH_GPIO_H */ diff --git a/include/asm-arm/arch-ns9xxx/hardware.h b/include/asm-arm/arch-ns9xxx/hardware.h index 25600554c4fe..0b7b34603f1c 100644 --- a/include/asm-arm/arch-ns9xxx/hardware.h +++ b/include/asm-arm/arch-ns9xxx/hardware.h @@ -27,42 +27,53 @@ #define io_v2p(x) ((((x) & 0x0f000000) << 4) \ + ((x) & 0x00ffffff)) +#define __REGSHIFT(mask) ((mask) & (-(mask))) + #define __REGBIT(bit) ((u32)1 << (bit)) #define __REGBITS(hbit, lbit) ((((u32)1 << ((hbit) - (lbit) + 1)) - 1) << (lbit)) -#define __REGVAL(mask, value) (((value) * ((mask) & (-(mask))) & (mask))) +#define __REGVAL(mask, value) (((value) * __REGSHIFT(mask)) & (mask)) #ifndef __ASSEMBLY__ -# define __REG(x) (*((volatile u32 *)io_p2v((x)))) -# define __REG2(x, y) (*((volatile u32 *)io_p2v((x)) + (y))) +# define __REG(x) ((void __iomem __force *)io_p2v((x))) +# define __REG2(x, y) ((void __iomem __force *)(io_p2v((x)) + 4 * (y))) -# define __REGB(x) (*((volatile u8 *)io_p2v((x)))) -# define __REGB2(x) (*((volatile u8 *)io_p2v((x)) + (y))) +# define __REGSET(var, field, value) \ + ((var) = (((var) & ~((field) & ~(value))) | (value))) # define REGSET(var, reg, field, value) \ - ((var) = (((var) \ - & ~(reg ## _ ## field & \ - ~ reg ## _ ## field ## _ ## value)) \ - | (reg ## _ ## field ## _ ## value))) + __REGSET(var, reg ## _ ## field, reg ## _ ## field ## _ ## value) + +# define REGSET_IDX(var, reg, field, idx, value) \ + __REGSET(var, reg ## _ ## field((idx)), reg ## _ ## field ## _ ## value((idx))) # define REGSETIM(var, reg, field, value) \ - ((var) = (((var) \ - & ~(reg ## _ ## field & \ - ~(__REGVAL(reg ## _ ## field, value)))) \ - | (__REGVAL(reg ## _ ## field, value)))) + __REGSET(var, reg ## _ ## field, __REGVAL(reg ## _ ## field, (value))) + +# define REGSETIM_IDX(var, reg, field, idx, value) \ + __REGSET(var, reg ## _ ## field((idx)), __REGVAL(reg ## _ ## field((idx)), (value))) + +# define __REGGET(var, field) \ + (((var) & (field))) # define REGGET(var, reg, field) \ - ((var & (reg ## _ ## field)) / \ - ((reg ## _ ## field) & (-(reg ## _ ## field)))) + __REGGET(var, reg ## _ ## field) + +# define REGGET_IDX(var, reg, field, idx) \ + __REGGET(var, reg ## _ ## field((idx))) + +# define REGGETIM(var, reg, field) \ + __REGGET(var, reg ## _ ## field) / __REGSHIFT(reg ## _ ## field) + +# define REGGETIM_IDX(var, reg, field, idx) \ + __REGGET(var, reg ## _ ## field((idx))) / \ + __REGSHIFT(reg ## _ ## field((idx))) #else # define __REG(x) io_p2v(x) # define __REG2(x, y) io_p2v((x) + (y)) -# define __REGB(x) __REG((x)) -# define __REGB2(x, y) __REG2((x), (y)) - #endif #endif /* ifndef __ASM_ARCH_HARDWARE_H */ diff --git a/include/asm-arm/arch-ns9xxx/regs-board-a9m9750dev.h b/include/asm-arm/arch-ns9xxx/regs-board-a9m9750dev.h index c3dc532dd20c..afa3a9db3e1d 100644 --- a/include/asm-arm/arch-ns9xxx/regs-board-a9m9750dev.h +++ b/include/asm-arm/arch-ns9xxx/regs-board-a9m9750dev.h @@ -18,7 +18,7 @@ #define FPGA_UARTC_BASE io_p2v(NS9XXX_CSxSTAT_PHYS(0) + 0x10) #define FPGA_UARTD_BASE io_p2v(NS9XXX_CSxSTAT_PHYS(0) + 0x18) -#define FPGA_IER __REGB(NS9XXX_CSxSTAT_PHYS(0) + 0x50) -#define FPGA_ISR __REGB(NS9XXX_CSxSTAT_PHYS(0) + 0x60) +#define FPGA_IER __REG(NS9XXX_CSxSTAT_PHYS(0) + 0x50) +#define FPGA_ISR __REG(NS9XXX_CSxSTAT_PHYS(0) + 0x60) #endif /* ifndef __ASM_ARCH_REGSBOARDA9M9750_H */ diff --git a/include/asm-arm/arch-ns9xxx/system.h b/include/asm-arm/arch-ns9xxx/system.h index e3cd4d31b3f3..c1082bd8977c 100644 --- a/include/asm-arm/arch-ns9xxx/system.h +++ b/include/asm-arm/arch-ns9xxx/system.h @@ -24,9 +24,9 @@ static inline void arch_reset(char mode) { u32 reg; - reg = SYS_PLL >> 16; + reg = __raw_readl(SYS_PLL) >> 16; REGSET(reg, SYS_PLL, SWC, YES); - SYS_PLL = reg; + __raw_writel(reg, SYS_PLL); BUG(); } |