1 /* SPDX-License-Identifier: GPL-2.0-only */ 1
2 /*
3 * MTD primitives for XIP support. Architectur
4 *
5 * Do not include this file directly. It's inc
6 *
7 * Author: Vladimir Barinov <vbarinov@embedded
8 *
9 * (c) 2005 MontaVista Software, Inc.
10 */
11
12 #ifndef __ARCH_OMAP_MTD_XIP_H__
13 #define __ARCH_OMAP_MTD_XIP_H__
14
15 #include "hardware.h"
16 #include <linux/soc/ti/omap1-io.h>
17 #define OMAP_MPU_TIMER_BASE (0xfffec500)
18 #define OMAP_MPU_TIMER_OFFSET 0x100
19
20 typedef struct {
21 u32 cntl; /* CNT
22 u32 load_tim; /* LOA
23 u32 read_tim; /* REA
24 } xip_omap_mpu_timer_regs_t;
25
26 #define xip_omap_mpu_timer_base(n)
27 ((volatile xip_omap_mpu_timer_regs_t*)OMAP1_IO
28 (n)*OMAP_MPU_TIMER_OFFSET))
29
30 static inline unsigned long xip_omap_mpu_timer
31 {
32 volatile xip_omap_mpu_timer_regs_t* ti
33 return timer->read_tim;
34 }
35
36 #define xip_irqpending() \
37 (omap_readl(OMAP_IH1_ITR) & ~omap_read
38 #define xip_currtime() (~xip_omap_mpu
39
40 /*
41 * It's permitted to do approximation for xip_
42 * (see linux/mtd/xip.h)
43 */
44
45 #define xip_elapsed_since(x) (signed)((~xip
46
47 /*
48 * xip_cpu_idle() is used when waiting for a d
49 * the system timer tick period. This should
50 * to save power and to be woken up only when
51 * As above, this should not rely upon standar
52 */
53
54 #define xip_cpu_idle() asm volatile ("mcr p15
55
56 #endif /* __ARCH_OMAP_MTD_XIP_H__ */
57
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