119 строки
2.7 KiB
C
119 строки
2.7 KiB
C
/* 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;
|
|
int ecver;
|
|
};
|
|
|
|
#define OLPC_F_PRESENT 0x01
|
|
#define OLPC_F_DCON 0x02
|
|
|
|
#ifdef CONFIG_OLPC
|
|
|
|
extern struct olpc_platform_t olpc_platform_info;
|
|
|
|
/*
|
|
* OLPC board IDs contain the major build number within the mask 0x0ff0,
|
|
* and the minor build number withing 0x000f. Pre-builds have a minor
|
|
* number less than 8, and normal builds start at 8. For example, 0x0B10
|
|
* is a PreB1, and 0x0C18 is a C1.
|
|
*/
|
|
|
|
static inline uint32_t olpc_board(uint8_t id)
|
|
{
|
|
return (id << 4) | 0x8;
|
|
}
|
|
|
|
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
|
|
|
|
extern int pci_olpc_init(void);
|
|
|
|
/* EC related functions */
|
|
|
|
extern int olpc_ec_cmd(unsigned char cmd, unsigned char *inbuf, size_t inlen,
|
|
unsigned char *outbuf, size_t outlen);
|
|
|
|
extern int olpc_ec_mask_set(uint8_t bits);
|
|
extern int olpc_ec_mask_unset(uint8_t bits);
|
|
|
|
/* EC commands */
|
|
|
|
#define EC_FIRMWARE_REV 0x08
|
|
#define EC_WLAN_ENTER_RESET 0x35
|
|
#define EC_WLAN_LEAVE_RESET 0x25
|
|
|
|
/* SCI source values */
|
|
|
|
#define EC_SCI_SRC_EMPTY 0x00
|
|
#define EC_SCI_SRC_GAME 0x01
|
|
#define EC_SCI_SRC_BATTERY 0x02
|
|
#define EC_SCI_SRC_BATSOC 0x04
|
|
#define EC_SCI_SRC_BATERR 0x08
|
|
#define EC_SCI_SRC_EBOOK 0x10
|
|
#define EC_SCI_SRC_WLAN 0x20
|
|
#define EC_SCI_SRC_ACPWR 0x40
|
|
#define EC_SCI_SRC_ALL 0x7F
|
|
|
|
/* GPIO assignments */
|
|
|
|
#define OLPC_GPIO_MIC_AC 1
|
|
#define OLPC_GPIO_DCON_IRQ geode_gpio(7)
|
|
#define OLPC_GPIO_THRM_ALRM geode_gpio(10)
|
|
#define OLPC_GPIO_SMB_CLK geode_gpio(14)
|
|
#define OLPC_GPIO_SMB_DATA geode_gpio(15)
|
|
#define OLPC_GPIO_WORKAUX geode_gpio(24)
|
|
#define OLPC_GPIO_LID geode_gpio(26)
|
|
#define OLPC_GPIO_ECSCI geode_gpio(27)
|
|
|
|
#endif /* _ASM_X86_OLPC_H */
|