/* SPDX-License-Identifier: GPL-2.0 */
/* OLPC machine specific definitions */
#ifndef _ASM_X86_OLPC_H
#define _ASM_X86_OLPC_H
#include <asm /geode.h>
struct olpc_platform_t {
int flags;
uint32_t boardrev;
};
#define OLPC_F_PRESENT 0 x01
#define OLPC_F_DCON 0 x02
#ifdef CONFIG_OLPC
extern struct olpc_platform_t olpc_platform_info;
/*
* OLPC board IDs contain the major build number within the mask 0 x0ff0 ,
* and the minor build number within 0 x000f . Pre - builds have a minor
* number less than 8 , and normal builds start at 8 . For example , 0 x0B10
* is a PreB1 , and 0 x0C18 is a C1 .
*/
static inline uint32_t olpc_board(uint8_t id)
{
return (id << 4 ) | 0 x8;
}
static inline uint32_t olpc_board_pre(uint8_t id)
{
return id << 4 ;
}
static inline int machine_is_olpc(void )
{
return (olpc_platform_info.flags & OLPC_F_PRESENT) ? 1 : 0 ;
}
/*
* The DCON is OLPC ' s Display Controller . It has a number of unique
* features that we might want to take advantage of . .
*/
static inline int olpc_has_dcon(void )
{
return (olpc_platform_info.flags & OLPC_F_DCON) ? 1 : 0 ;
}
/*
* The " Mass Production " version of OLPC ' s XO is identified as being model
* C2 . During the prototype phase , the following models ( in chronological
* order ) were created : A1 , B1 , B2 , B3 , B4 , C1 . The A1 through B2 models
* were based on Geode GX CPUs , and models after that were based upon
* Geode LX CPUs . There were also some hand - assembled models floating
* around , referred to as PreB1 , PreB2 , etc .
*/
static inline int olpc_board_at_least(uint32_t rev)
{
return olpc_platform_info.boardrev >= rev;
}
#else
static inline int machine_is_olpc(void )
{
return 0 ;
}
static inline int olpc_has_dcon(void )
{
return 0 ;
}
#endif
#ifdef CONFIG_OLPC_XO1_PM
extern void do_olpc_suspend_lowlevel(void );
extern void olpc_xo1_pm_wakeup_set(u16 value);
extern void olpc_xo1_pm_wakeup_clear(u16 value);
#endif
extern int pci_olpc_init(void );
/* GPIO assignments */
#define OLPC_GPIO_MIC_AC 1
#define OLPC_GPIO_DCON_STAT0 5
#define OLPC_GPIO_DCON_STAT1 6
#define OLPC_GPIO_DCON_IRQ 7
#define OLPC_GPIO_THRM_ALRM geode_gpio(10 )
#define OLPC_GPIO_DCON_LOAD 11
#define OLPC_GPIO_DCON_BLANK 12
#define OLPC_GPIO_SMB_CLK 14
#define OLPC_GPIO_SMB_DATA 15
#define OLPC_GPIO_WORKAUX geode_gpio(24 )
#define OLPC_GPIO_LID 26
#define OLPC_GPIO_ECSCI 27
#endif /* _ASM_X86_OLPC_H */
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