mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
102 lines
2.3 KiB
102 lines
2.3 KiB
/* 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 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 within 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 |
|
|
|
#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 */
|
|
|