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ec9964b480
Move the olpc-ec driver away from the X86 OLPC platform so that it could be used by the ARM based laptops too. Notably, the driver for the OLPC battery, which is also used on the ARM models, builds on this driver's interface. It is actually plaform independent: the OLPC EC commands with their argument and responses are mostly the same despite the delivery mechanism is different. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
102 lines
2.3 KiB
C
102 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* OLPC machine specific definitions */
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#ifndef _ASM_X86_OLPC_H
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#define _ASM_X86_OLPC_H
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#include <asm/geode.h>
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struct olpc_platform_t {
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int flags;
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uint32_t boardrev;
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};
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#define OLPC_F_PRESENT 0x01
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#define OLPC_F_DCON 0x02
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#ifdef CONFIG_OLPC
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extern struct olpc_platform_t olpc_platform_info;
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/*
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* OLPC board IDs contain the major build number within the mask 0x0ff0,
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* and the minor build number within 0x000f. Pre-builds have a minor
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* number less than 8, and normal builds start at 8. For example, 0x0B10
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* is a PreB1, and 0x0C18 is a C1.
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*/
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static inline uint32_t olpc_board(uint8_t id)
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{
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return (id << 4) | 0x8;
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}
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static inline uint32_t olpc_board_pre(uint8_t id)
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{
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return id << 4;
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}
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static inline int machine_is_olpc(void)
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{
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return (olpc_platform_info.flags & OLPC_F_PRESENT) ? 1 : 0;
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}
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/*
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* The DCON is OLPC's Display Controller. It has a number of unique
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* features that we might want to take advantage of..
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*/
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static inline int olpc_has_dcon(void)
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{
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return (olpc_platform_info.flags & OLPC_F_DCON) ? 1 : 0;
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}
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/*
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* The "Mass Production" version of OLPC's XO is identified as being model
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* C2. During the prototype phase, the following models (in chronological
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* order) were created: A1, B1, B2, B3, B4, C1. The A1 through B2 models
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* were based on Geode GX CPUs, and models after that were based upon
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* Geode LX CPUs. There were also some hand-assembled models floating
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* around, referred to as PreB1, PreB2, etc.
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*/
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static inline int olpc_board_at_least(uint32_t rev)
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{
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return olpc_platform_info.boardrev >= rev;
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}
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#else
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static inline int machine_is_olpc(void)
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{
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return 0;
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}
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static inline int olpc_has_dcon(void)
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{
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return 0;
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}
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#endif
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#ifdef CONFIG_OLPC_XO1_PM
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extern void do_olpc_suspend_lowlevel(void);
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extern void olpc_xo1_pm_wakeup_set(u16 value);
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extern void olpc_xo1_pm_wakeup_clear(u16 value);
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#endif
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extern int pci_olpc_init(void);
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/* GPIO assignments */
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#define OLPC_GPIO_MIC_AC 1
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#define OLPC_GPIO_DCON_STAT0 5
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#define OLPC_GPIO_DCON_STAT1 6
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#define OLPC_GPIO_DCON_IRQ 7
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#define OLPC_GPIO_THRM_ALRM geode_gpio(10)
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#define OLPC_GPIO_DCON_LOAD 11
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#define OLPC_GPIO_DCON_BLANK 12
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#define OLPC_GPIO_SMB_CLK 14
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#define OLPC_GPIO_SMB_DATA 15
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#define OLPC_GPIO_WORKAUX geode_gpio(24)
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#define OLPC_GPIO_LID 26
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#define OLPC_GPIO_ECSCI 27
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#endif /* _ASM_X86_OLPC_H */
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