1/* OLPC machine specific definitions */ 2 3#ifndef _ASM_X86_OLPC_H 4#define _ASM_X86_OLPC_H 5 6#include <asm/geode.h> 7 8struct olpc_platform_t { 9 int flags; 10 uint32_t boardrev; 11 int ecver; 12}; 13 14#define OLPC_F_PRESENT 0x01 15#define OLPC_F_DCON 0x02 16 17#ifdef CONFIG_OLPC 18 19extern struct olpc_platform_t olpc_platform_info; 20 21/* 22 * OLPC board IDs contain the major build number within the mask 0x0ff0, 23 * and the minor build number withing 0x000f. Pre-builds have a minor 24 * number less than 8, and normal builds start at 8. For example, 0x0B10 25 * is a PreB1, and 0x0C18 is a C1. 26 */ 27 28static inline uint32_t olpc_board(uint8_t id) 29{ 30 return (id << 4) | 0x8; 31} 32 33static inline uint32_t olpc_board_pre(uint8_t id) 34{ 35 return id << 4; 36} 37 38static inline int machine_is_olpc(void) 39{ 40 return (olpc_platform_info.flags & OLPC_F_PRESENT) ? 1 : 0; 41} 42 43/* 44 * The DCON is OLPC's Display Controller. It has a number of unique 45 * features that we might want to take advantage of.. 46 */ 47static inline int olpc_has_dcon(void) 48{ 49 return (olpc_platform_info.flags & OLPC_F_DCON) ? 1 : 0; 50} 51 52/* 53 * The "Mass Production" version of OLPC's XO is identified as being model 54 * C2. During the prototype phase, the following models (in chronological 55 * order) were created: A1, B1, B2, B3, B4, C1. The A1 through B2 models 56 * were based on Geode GX CPUs, and models after that were based upon 57 * Geode LX CPUs. There were also some hand-assembled models floating 58 * around, referred to as PreB1, PreB2, etc. 59 */ 60static inline int olpc_board_at_least(uint32_t rev) 61{ 62 return olpc_platform_info.boardrev >= rev; 63} 64 65#else 66 67static inline int machine_is_olpc(void) 68{ 69 return 0; 70} 71 72static inline int olpc_has_dcon(void) 73{ 74 return 0; 75} 76 77#endif 78 79extern int pci_olpc_init(void); 80 81/* EC related functions */ 82 83extern int olpc_ec_cmd(unsigned char cmd, unsigned char *inbuf, size_t inlen, 84 unsigned char *outbuf, size_t outlen); 85 86extern int olpc_ec_mask_set(uint8_t bits); 87extern int olpc_ec_mask_unset(uint8_t bits); 88 89/* EC commands */ 90 91#define EC_FIRMWARE_REV 0x08 92 93/* SCI source values */ 94 95#define EC_SCI_SRC_EMPTY 0x00 96#define EC_SCI_SRC_GAME 0x01 97#define EC_SCI_SRC_BATTERY 0x02 98#define EC_SCI_SRC_BATSOC 0x04 99#define EC_SCI_SRC_BATERR 0x08 100#define EC_SCI_SRC_EBOOK 0x10 101#define EC_SCI_SRC_WLAN 0x20 102#define EC_SCI_SRC_ACPWR 0x40 103#define EC_SCI_SRC_ALL 0x7F 104 105/* GPIO assignments */ 106 107#define OLPC_GPIO_MIC_AC 1 108#define OLPC_GPIO_DCON_IRQ geode_gpio(7) 109#define OLPC_GPIO_THRM_ALRM geode_gpio(10) 110#define OLPC_GPIO_SMB_CLK geode_gpio(14) 111#define OLPC_GPIO_SMB_DATA geode_gpio(15) 112#define OLPC_GPIO_WORKAUX geode_gpio(24) 113#define OLPC_GPIO_LID geode_gpio(26) 114#define OLPC_GPIO_ECSCI geode_gpio(27) 115 116#endif /* _ASM_X86_OLPC_H */ 117