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-rw-r--r--arch/arm/plat-omap/common.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 70b68ef83201..66738c3854c3 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -2,6 +2,10 @@
2 * linux/arch/arm/plat-omap/common.c 2 * linux/arch/arm/plat-omap/common.c
3 * 3 *
4 * Code common to all OMAP machines. 4 * Code common to all OMAP machines.
5 * The file is created by Tony Lindgren <tony@atomide.com>
6 *
7 * Copyright (C) 2009 Texas Instruments
8 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
5 * 9 *
6 * This program is free software; you can redistribute it and/or modify 10 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as 11 * it under the terms of the GNU General Public License version 2 as
@@ -217,6 +221,15 @@ static cycle_t omap34xx_32k_read(struct clocksource *cs)
217#define omap34xx_32k_read NULL 221#define omap34xx_32k_read NULL
218#endif 222#endif
219 223
224#ifdef CONFIG_ARCH_OMAP4
225static cycle_t omap44xx_32k_read(struct clocksource *cs)
226{
227 return omap_readl(OMAP4430_32KSYNCT_BASE + 0x10);
228}
229#else
230#define omap44xx_32k_read NULL
231#endif
232
220/* 233/*
221 * Kernel assumes that sched_clock can be called early but may not have 234 * Kernel assumes that sched_clock can be called early but may not have
222 * things ready yet. 235 * things ready yet.
@@ -264,6 +277,8 @@ static int __init omap_init_clocksource_32k(void)
264 clocksource_32k.read = omap2430_32k_read; 277 clocksource_32k.read = omap2430_32k_read;
265 else if (cpu_is_omap34xx()) 278 else if (cpu_is_omap34xx())
266 clocksource_32k.read = omap34xx_32k_read; 279 clocksource_32k.read = omap34xx_32k_read;
280 else if (cpu_is_omap44xx())
281 clocksource_32k.read = omap44xx_32k_read;
267 else 282 else
268 return -ENODEV; 283 return -ENODEV;
269 284
@@ -351,3 +366,19 @@ void __init omap2_set_globals_343x(void)
351} 366}
352#endif 367#endif
353 368
369#if defined(CONFIG_ARCH_OMAP4)
370static struct omap_globals omap4_globals = {
371 .class = OMAP443X_CLASS,
372 .tap = OMAP2_IO_ADDRESS(0x4830a000),
373 .ctrl = OMAP2_IO_ADDRESS(OMAP443X_CTRL_BASE),
374 .prm = OMAP2_IO_ADDRESS(OMAP4430_PRM_BASE),
375 .cm = OMAP2_IO_ADDRESS(OMAP4430_CM_BASE),
376};
377
378void __init omap2_set_globals_443x(void)
379{
380 omap2_set_globals_tap(&omap4_globals);
381 omap2_set_globals_control(&omap4_globals);
382}
383#endif
384