| /* |
| * OMAP4 CM module functions |
| * |
| * Copyright (C) 2009 Nokia Corporation |
| * Paul Walmsley |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/types.h> |
| #include <linux/delay.h> |
| #include <linux/spinlock.h> |
| #include <linux/list.h> |
| #include <linux/errno.h> |
| #include <linux/err.h> |
| #include <linux/io.h> |
| |
| #include <asm/atomic.h> |
| |
| #include "cm.h" |
| |
| /* XXX move this to cm.h */ |
| /* MAX_MODULE_READY_TIME: max milliseconds for module to leave idle */ |
| #define MAX_MODULE_READY_TIME 20000 |
| |
| /* |
| * OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK: isolates the IDLEST field in the |
| * CM_CLKCTRL register. |
| */ |
| #define OMAP4_PRCM_CM_CLKCTRL_IDLEST_MASK (0x2 << 16) |
| |
| /* |
| * OMAP4 prcm_mod u32 fields contain packed data: the CM ID in bit 16 and |
| * the PRCM module offset address (from the CM module base) in bits 15-0. |
| */ |
| #define OMAP4_PRCM_MOD_CM_ID_SHIFT 16 |
| #define OMAP4_PRCM_MOD_OFFS_MASK 0xffff |
| |
| /** |
| * omap4_cm_wait_idlest_ready - wait for a module to leave idle or standby |
| * @prcm_mod: PRCM module offset (XXX example) |
| * @prcm_dev_offs: PRCM device offset (e.g. MCASP XXX example) |
| * |
| * XXX document |
| */ |
| int omap4_cm_wait_idlest_ready(u32 prcm_mod, u8 prcm_dev_offs) |
| { |
| /* FIXME: Add clock manager related code */ |
| return 0; |
| } |
| |
