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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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