1 /* 2 * OMAP2/3 System Control Module register access 3 * 4 * Copyright (C) 2007 Texas Instruments, Inc. 5 * Copyright (C) 2007 Nokia Corporation 6 * 7 * Written by Paul Walmsley 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 #undef DEBUG 14 15 #include <linux/kernel.h> 16 17 #include <asm/io.h> 18 19 #include <asm/arch/control.h> 20 21 static u32 omap2_ctrl_base; 22 23 #define OMAP_CTRL_REGADDR(reg) (void __iomem *)IO_ADDRESS(omap2_ctrl_base \ 24 + (reg)) 25 26 void omap_ctrl_base_set(u32 base) 27 { 28 omap2_ctrl_base = base; 29 } 30 31 u32 omap_ctrl_base_get(void) 32 { 33 return omap2_ctrl_base; 34 } 35 36 u8 omap_ctrl_readb(u16 offset) 37 { 38 return __raw_readb(OMAP_CTRL_REGADDR(offset)); 39 } 40 41 u16 omap_ctrl_readw(u16 offset) 42 { 43 return __raw_readw(OMAP_CTRL_REGADDR(offset)); 44 } 45 46 u32 omap_ctrl_readl(u16 offset) 47 { 48 return __raw_readl(OMAP_CTRL_REGADDR(offset)); 49 } 50 51 void omap_ctrl_writeb(u8 val, u16 offset) 52 { 53 pr_debug("omap_ctrl_writeb: writing 0x%0x to 0x%0x\n", val, 54 (u32)OMAP_CTRL_REGADDR(offset)); 55 56 __raw_writeb(val, OMAP_CTRL_REGADDR(offset)); 57 } 58 59 void omap_ctrl_writew(u16 val, u16 offset) 60 { 61 pr_debug("omap_ctrl_writew: writing 0x%0x to 0x%0x\n", val, 62 (u32)OMAP_CTRL_REGADDR(offset)); 63 64 __raw_writew(val, OMAP_CTRL_REGADDR(offset)); 65 } 66 67 void omap_ctrl_writel(u32 val, u16 offset) 68 { 69 pr_debug("omap_ctrl_writel: writing 0x%0x to 0x%0x\n", val, 70 (u32)OMAP_CTRL_REGADDR(offset)); 71 72 __raw_writel(val, OMAP_CTRL_REGADDR(offset)); 73 } 74 75