mirror of
https://github.com/edk2-porting/linux-next.git
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63245d2cde
Added I/O and DMA allocators to be used by drivers. Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
195 lines
7.2 KiB
C
195 lines
7.2 KiB
C
#ifndef _ASM_ARCH_CRIS_IO_H
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#define _ASM_ARCH_CRIS_IO_H
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#include <asm/arch/svinto.h>
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#include <linux/config.h>
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/* Etrax shadow registers - which live in arch/cris/kernel/shadows.c */
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extern unsigned long gen_config_ii_shadow;
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extern unsigned long port_g_data_shadow;
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extern unsigned char port_pa_dir_shadow;
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extern unsigned char port_pa_data_shadow;
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extern unsigned char port_pb_i2c_shadow;
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extern unsigned char port_pb_config_shadow;
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extern unsigned char port_pb_dir_shadow;
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extern unsigned char port_pb_data_shadow;
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extern unsigned long r_timer_ctrl_shadow;
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extern unsigned long port_cse1_shadow;
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extern unsigned long port_csp0_shadow;
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extern unsigned long port_csp4_shadow;
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extern volatile unsigned long *port_cse1_addr;
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extern volatile unsigned long *port_csp0_addr;
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extern volatile unsigned long *port_csp4_addr;
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/* macro for setting regs through a shadow -
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* r = register name (like R_PORT_PA_DATA)
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* s = shadow name (like port_pa_data_shadow)
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* b = bit number
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* v = value (0 or 1)
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*/
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#define REG_SHADOW_SET(r,s,b,v) *r = s = (s & ~(1 << (b))) | ((v) << (b))
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/* The LED's on various Etrax-based products are set differently. */
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#if defined(CONFIG_ETRAX_NO_LEDS) || defined(CONFIG_SVINTO_SIM)
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#undef CONFIG_ETRAX_PA_LEDS
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#undef CONFIG_ETRAX_PB_LEDS
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#undef CONFIG_ETRAX_CSP0_LEDS
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#define LED_NETWORK_SET_G(x)
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#define LED_NETWORK_SET_R(x)
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#define LED_ACTIVE_SET_G(x)
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#define LED_ACTIVE_SET_R(x)
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#define LED_DISK_WRITE(x)
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#define LED_DISK_READ(x)
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#endif
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#if !defined(CONFIG_ETRAX_CSP0_LEDS)
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#define LED_BIT_SET(x)
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#define LED_BIT_CLR(x)
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#endif
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#define LED_OFF 0x00
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#define LED_GREEN 0x01
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#define LED_RED 0x02
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#define LED_ORANGE (LED_GREEN | LED_RED)
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#if CONFIG_ETRAX_LED1G == CONFIG_ETRAX_LED1R
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#define LED_NETWORK_SET(x) \
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do { \
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LED_NETWORK_SET_G((x) & LED_GREEN); \
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} while (0)
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#else
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#define LED_NETWORK_SET(x) \
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do { \
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LED_NETWORK_SET_G((x) & LED_GREEN); \
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LED_NETWORK_SET_R((x) & LED_RED); \
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} while (0)
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#endif
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#if CONFIG_ETRAX_LED2G == CONFIG_ETRAX_LED2R
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#define LED_ACTIVE_SET(x) \
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do { \
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LED_ACTIVE_SET_G((x) & LED_GREEN); \
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} while (0)
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#else
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#define LED_ACTIVE_SET(x) \
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do { \
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LED_ACTIVE_SET_G((x) & LED_GREEN); \
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LED_ACTIVE_SET_R((x) & LED_RED); \
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} while (0)
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#endif
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#ifdef CONFIG_ETRAX_PA_LEDS
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#define LED_NETWORK_SET_G(x) \
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REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED1G, !(x))
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#define LED_NETWORK_SET_R(x) \
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REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED1R, !(x))
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#define LED_ACTIVE_SET_G(x) \
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REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED2G, !(x))
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#define LED_ACTIVE_SET_R(x) \
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REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED2R, !(x))
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#define LED_DISK_WRITE(x) \
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do{\
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REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED3G, !(x));\
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REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED3R, !(x));\
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}while(0)
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#define LED_DISK_READ(x) \
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REG_SHADOW_SET(R_PORT_PA_DATA, port_pa_data_shadow, CONFIG_ETRAX_LED3G, !(x))
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#endif
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#ifdef CONFIG_ETRAX_PB_LEDS
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#define LED_NETWORK_SET_G(x) \
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REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED1G, !(x))
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#define LED_NETWORK_SET_R(x) \
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REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED1R, !(x))
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#define LED_ACTIVE_SET_G(x) \
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REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED2G, !(x))
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#define LED_ACTIVE_SET_R(x) \
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REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED2R, !(x))
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#define LED_DISK_WRITE(x) \
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do{\
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REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED3G, !(x));\
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REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED3R, !(x));\
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}while(0)
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#define LED_DISK_READ(x) \
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REG_SHADOW_SET(R_PORT_PB_DATA, port_pb_data_shadow, CONFIG_ETRAX_LED3G, !(x))
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#endif
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#ifdef CONFIG_ETRAX_CSP0_LEDS
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#define CONFIGURABLE_LEDS\
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((1 << CONFIG_ETRAX_LED1G ) | (1 << CONFIG_ETRAX_LED1R ) |\
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(1 << CONFIG_ETRAX_LED2G ) | (1 << CONFIG_ETRAX_LED2R ) |\
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(1 << CONFIG_ETRAX_LED3G ) | (1 << CONFIG_ETRAX_LED3R ) |\
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(1 << CONFIG_ETRAX_LED4G ) | (1 << CONFIG_ETRAX_LED4R ) |\
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(1 << CONFIG_ETRAX_LED5G ) | (1 << CONFIG_ETRAX_LED5R ) |\
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(1 << CONFIG_ETRAX_LED6G ) | (1 << CONFIG_ETRAX_LED6R ) |\
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(1 << CONFIG_ETRAX_LED7G ) | (1 << CONFIG_ETRAX_LED7R ) |\
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(1 << CONFIG_ETRAX_LED8Y ) | (1 << CONFIG_ETRAX_LED9Y ) |\
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(1 << CONFIG_ETRAX_LED10Y ) |(1 << CONFIG_ETRAX_LED11Y )|\
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(1 << CONFIG_ETRAX_LED12R ))
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#define LED_NETWORK_SET_G(x) \
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED1G, !(x))
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#define LED_NETWORK_SET_R(x) \
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED1R, !(x))
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#define LED_ACTIVE_SET_G(x) \
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED2G, !(x))
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#define LED_ACTIVE_SET_R(x) \
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED2R, !(x))
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#define LED_DISK_WRITE(x) \
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do{\
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED3G, !(x));\
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED3R, !(x));\
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}while(0)
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#define LED_DISK_READ(x) \
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_LED3G, !(x))
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#define LED_BIT_SET(x)\
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do{\
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if((( 1 << x) & CONFIGURABLE_LEDS) != 0)\
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, x, 1);\
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}while(0)
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#define LED_BIT_CLR(x)\
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do{\
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if((( 1 << x) & CONFIGURABLE_LEDS) != 0)\
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, x, 0);\
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}while(0)
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#endif
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#
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#ifdef CONFIG_ETRAX_SOFT_SHUTDOWN
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#define SOFT_SHUTDOWN() \
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REG_SHADOW_SET(port_csp0_addr, port_csp0_shadow, CONFIG_ETRAX_SHUTDOWN_BIT, 1)
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#else
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#define SOFT_SHUTDOWN()
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#endif
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/* Console I/O for simulated etrax100. Use #ifdef so erroneous
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use will be evident. */
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#ifdef CONFIG_SVINTO_SIM
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/* Let's use the ucsim interface since it lets us do write(2, ...) */
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#define SIMCOUT(s,len) \
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asm ("moveq 4,$r9 \n\t" \
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"moveq 2,$r10 \n\t" \
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"move.d %0,$r11 \n\t" \
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"move.d %1,$r12 \n\t" \
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"push $irp \n\t" \
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"move 0f,$irp \n\t" \
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"jump -6809 \n" \
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"0: \n\t" \
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"pop $irp" \
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: : "rm" (s), "rm" (len) : "r9","r10","r11","r12","memory")
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#define TRACE_ON() __extension__ \
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({ int _Foofoo; __asm__ volatile ("bmod [%0],%0" : "=r" (_Foofoo) : "0" \
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(255)); _Foofoo; })
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#define TRACE_OFF() do { __asm__ volatile ("bmod [%0],%0" :: "r" (254)); } while (0)
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#define SIM_END() do { __asm__ volatile ("bmod [%0],%0" :: "r" (28)); } while (0)
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#define CRIS_CYCLES() __extension__ \
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({ unsigned long c; asm ("bmod [%1],%0" : "=r" (c) : "r" (27)); c;})
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#endif /* ! defined CONFIG_SVINTO_SIM */
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#endif
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