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/* 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 */
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