1356290Sjkim/* SPDX-License-Identifier: GPL-2.0 */ 296593Smarkm/* OLPC machine specific definitions */ 396593Smarkm 4142429Snectar#ifndef _ASM_X86_OLPC_H 596593Smarkm#define _ASM_X86_OLPC_H 696593Smarkm 796593Smarkm#include <asm/geode.h> 896593Smarkm 996593Smarkmstruct olpc_platform_t { 1096593Smarkm int flags; 1196593Smarkm uint32_t boardrev; 1296593Smarkm}; 1396593Smarkm 1496593Smarkm#define OLPC_F_PRESENT 0x01 1596593Smarkm#define OLPC_F_DCON 0x02 1696593Smarkm 1796593Smarkm#ifdef CONFIG_OLPC 1896593Smarkm 1996593Smarkmextern struct olpc_platform_t olpc_platform_info; 20215698Ssimon 21215698Ssimon/* 22215698Ssimon * OLPC board IDs contain the major build number within the mask 0x0ff0, 23215698Ssimon * and the minor build number within 0x000f. Pre-builds have a minor 24215698Ssimon * number less than 8, and normal builds start at 8. For example, 0x0B10 2596593Smarkm * is a PreB1, and 0x0C18 is a C1. 2696593Smarkm */ 2796593Smarkm 2896593Smarkmstatic inline uint32_t olpc_board(uint8_t id) 2996593Smarkm{ 3096593Smarkm return (id << 4) | 0x8; 3196593Smarkm} 3296593Smarkm 3396593Smarkmstatic inline uint32_t olpc_board_pre(uint8_t id) 3496593Smarkm{ 3596593Smarkm return id << 4; 3696593Smarkm} 3796593Smarkm 3896593Smarkmstatic inline int machine_is_olpc(void) 3996593Smarkm{ 4096593Smarkm return (olpc_platform_info.flags & OLPC_F_PRESENT) ? 1 : 0; 41276861Sjkim} 42276861Sjkim 4396593Smarkm/* 4496593Smarkm * The DCON is OLPC's Display Controller. It has a number of unique 45215698Ssimon * features that we might want to take advantage of.. 46215698Ssimon */ 47215698Ssimonstatic inline int olpc_has_dcon(void) 48215698Ssimon{ 49312826Sjkim return (olpc_platform_info.flags & OLPC_F_DCON) ? 1 : 0; 50215698Ssimon} 51142429Snectar 52142429Snectar/* 53276861Sjkim * The "Mass Production" version of OLPC's XO is identified as being model 54276861Sjkim * C2. During the prototype phase, the following models (in chronological 55276861Sjkim * order) were created: A1, B1, B2, B3, B4, C1. The A1 through B2 models 5696593Smarkm * were based on Geode GX CPUs, and models after that were based upon 57344604Sjkim * Geode LX CPUs. There were also some hand-assembled models floating 58344604Sjkim * around, referred to as PreB1, PreB2, etc. 59344604Sjkim */ 60344604Sjkimstatic inline int olpc_board_at_least(uint32_t rev) 61344604Sjkim{ 62344604Sjkim return olpc_platform_info.boardrev >= rev; 63215698Ssimon} 64344604Sjkim 65344604Sjkim#else 66344604Sjkim 67344604Sjkimstatic inline int machine_is_olpc(void) 68276861Sjkim{ 69215698Ssimon return 0; 70344604Sjkim} 7196593Smarkm 7296593Smarkmstatic inline int olpc_has_dcon(void) 7396593Smarkm{ 7496593Smarkm return 0; 7596593Smarkm} 7696593Smarkm 7796593Smarkm#endif 7896593Smarkm 7996593Smarkm#ifdef CONFIG_OLPC_XO1_PM 8096593Smarkmextern void do_olpc_suspend_lowlevel(void); 8196593Smarkmextern void olpc_xo1_pm_wakeup_set(u16 value); 8296593Smarkmextern void olpc_xo1_pm_wakeup_clear(u16 value); 8396593Smarkm#endif 8496593Smarkm 8596593Smarkmextern int pci_olpc_init(void); 8696593Smarkm 8796593Smarkm/* GPIO assignments */ 8896593Smarkm 8996593Smarkm#define OLPC_GPIO_MIC_AC 1 9096593Smarkm#define OLPC_GPIO_DCON_STAT0 5 9196593Smarkm#define OLPC_GPIO_DCON_STAT1 6 9296593Smarkm#define OLPC_GPIO_DCON_IRQ 7 9396593Smarkm#define OLPC_GPIO_THRM_ALRM geode_gpio(10) 9496593Smarkm#define OLPC_GPIO_DCON_LOAD 11 9596593Smarkm#define OLPC_GPIO_DCON_BLANK 12 9696593Smarkm#define OLPC_GPIO_SMB_CLK 14 9796593Smarkm#define OLPC_GPIO_SMB_DATA 15 9896593Smarkm#define OLPC_GPIO_WORKAUX geode_gpio(24) 9996593Smarkm#define OLPC_GPIO_LID 26 10096593Smarkm#define OLPC_GPIO_ECSCI 27 10196593Smarkm 10296593Smarkm#endif /* _ASM_X86_OLPC_H */ 10396593Smarkm