From b6f837575edc5213e00903afea240f0119ee5ec9 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Thu, 4 Feb 2010 09:42:13 +0900 Subject: ARM: S5P6442: Add clock support for S5P6442 This patch adds clock support for S5P6442. This patch adds the clock register definitions and the various system clocks in S5P6442. Signed-off-by: Adityapratap Sharma Signed-off-by: Atul Dahiya Signed-off-by: Kukjin Kim Signed-off-by: Ben Dooks --- arch/arm/mach-s5p6442/include/mach/pwm-clock.h | 69 ++++++++++++++++ arch/arm/mach-s5p6442/include/mach/regs-clock.h | 103 ++++++++++++++++++++++++ arch/arm/mach-s5p6442/include/mach/tick.h | 26 ++++++ 3 files changed, 198 insertions(+) create mode 100644 arch/arm/mach-s5p6442/include/mach/pwm-clock.h create mode 100644 arch/arm/mach-s5p6442/include/mach/regs-clock.h create mode 100644 arch/arm/mach-s5p6442/include/mach/tick.h (limited to 'arch/arm/mach-s5p6442/include') diff --git a/arch/arm/mach-s5p6442/include/mach/pwm-clock.h b/arch/arm/mach-s5p6442/include/mach/pwm-clock.h new file mode 100644 index 000000000000..15e8525da0f1 --- /dev/null +++ b/arch/arm/mach-s5p6442/include/mach/pwm-clock.h @@ -0,0 +1,69 @@ +/* linux/arch/arm/mach-s5p6442/include/mach/pwm-clock.h + * + * Copyright 2008 Simtec Electronics + * Ben Dooks + * http://armlinux.simtec.co.uk/ + * + * Copyright 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Based on arch/arm/plat-s3c24xx/include/mach/pwm-clock.h + * + * S5P6442 - pwm clock and timer support + * + * 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. +*/ + +#ifndef __ASM_ARCH_PWMCLK_H +#define __ASM_ARCH_PWMCLK_H __FILE__ + +/** + * pwm_cfg_src_is_tclk() - return whether the given mux config is a tclk + * @cfg: The timer TCFG1 register bits shifted down to 0. + * + * Return true if the given configuration from TCFG1 is a TCLK instead + * any of the TDIV clocks. + */ +static inline int pwm_cfg_src_is_tclk(unsigned long tcfg) +{ + return tcfg == S3C2410_TCFG1_MUX_TCLK; +} + +/** + * tcfg_to_divisor() - convert tcfg1 setting to a divisor + * @tcfg1: The tcfg1 setting, shifted down. + * + * Get the divisor value for the given tcfg1 setting. We assume the + * caller has already checked to see if this is not a TCLK source. + */ +static inline unsigned long tcfg_to_divisor(unsigned long tcfg1) +{ + return 1 << (1 + tcfg1); +} + +/** + * pwm_tdiv_has_div1() - does the tdiv setting have a /1 + * + * Return true if we have a /1 in the tdiv setting. + */ +static inline unsigned int pwm_tdiv_has_div1(void) +{ + return 0; +} + +/** + * pwm_tdiv_div_bits() - calculate TCFG1 divisor value. + * @div: The divisor to calculate the bit information for. + * + * Turn a divisor into the necessary bit field for TCFG1. + */ +static inline unsigned long pwm_tdiv_div_bits(unsigned int div) +{ + return ilog2(div) - 1; +} + +#define S3C_TCFG1_MUX_TCLK S3C2410_TCFG1_MUX_TCLK + +#endif /* __ASM_ARCH_PWMCLK_H */ diff --git a/arch/arm/mach-s5p6442/include/mach/regs-clock.h b/arch/arm/mach-s5p6442/include/mach/regs-clock.h new file mode 100644 index 000000000000..d8360b5d4ece --- /dev/null +++ b/arch/arm/mach-s5p6442/include/mach/regs-clock.h @@ -0,0 +1,103 @@ +/* linux/arch/arm/mach-s5p6442/include/mach/regs-clock.h + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * S5P6442 - Clock register definitions + * + * 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. +*/ + +#ifndef __ASM_ARCH_REGS_CLOCK_H +#define __ASM_ARCH_REGS_CLOCK_H __FILE__ + +#include + +#define S5P_CLKREG(x) (S3C_VA_SYS + (x)) + +#define S5P_APLL_LOCK S5P_CLKREG(0x00) +#define S5P_MPLL_LOCK S5P_CLKREG(0x08) +#define S5P_EPLL_LOCK S5P_CLKREG(0x10) +#define S5P_VPLL_LOCK S5P_CLKREG(0x20) + +#define S5P_APLL_CON S5P_CLKREG(0x100) +#define S5P_MPLL_CON S5P_CLKREG(0x108) +#define S5P_EPLL_CON S5P_CLKREG(0x110) +#define S5P_VPLL_CON S5P_CLKREG(0x120) + +#define S5P_CLK_SRC0 S5P_CLKREG(0x200) +#define S5P_CLK_SRC1 S5P_CLKREG(0x204) +#define S5P_CLK_SRC2 S5P_CLKREG(0x208) +#define S5P_CLK_SRC3 S5P_CLKREG(0x20C) +#define S5P_CLK_SRC4 S5P_CLKREG(0x210) +#define S5P_CLK_SRC5 S5P_CLKREG(0x214) +#define S5P_CLK_SRC6 S5P_CLKREG(0x218) + +#define S5P_CLK_SRC_MASK0 S5P_CLKREG(0x280) +#define S5P_CLK_SRC_MASK1 S5P_CLKREG(0x284) + +#define S5P_CLK_DIV0 S5P_CLKREG(0x300) +#define S5P_CLK_DIV1 S5P_CLKREG(0x304) +#define S5P_CLK_DIV2 S5P_CLKREG(0x308) +#define S5P_CLK_DIV3 S5P_CLKREG(0x30C) +#define S5P_CLK_DIV4 S5P_CLKREG(0x310) +#define S5P_CLK_DIV5 S5P_CLKREG(0x314) +#define S5P_CLK_DIV6 S5P_CLKREG(0x318) + +#define S5P_CLKGATE_IP3 S5P_CLKREG(0x46C) + +/* CLK_OUT */ +#define S5P_CLK_OUT_SHIFT (12) +#define S5P_CLK_OUT_MASK (0x1F << S5P_CLK_OUT_SHIFT) +#define S5P_CLK_OUT S5P_CLKREG(0x500) + +#define S5P_CLK_DIV_STAT0 S5P_CLKREG(0x1000) +#define S5P_CLK_DIV_STAT1 S5P_CLKREG(0x1004) + +#define S5P_CLK_MUX_STAT0 S5P_CLKREG(0x1100) +#define S5P_CLK_MUX_STAT1 S5P_CLKREG(0x1104) + +#define S5P_MDNIE_SEL S5P_CLKREG(0x7008) + +/* Register Bit definition */ +#define S5P_EPLL_EN (1<<31) +#define S5P_EPLL_MASK 0xffffffff +#define S5P_EPLLVAL(_m, _p, _s) ((_m) << 16 | ((_p) << 8) | ((_s))) + +/* CLKDIV0 */ +#define S5P_CLKDIV0_APLL_SHIFT (0) +#define S5P_CLKDIV0_APLL_MASK (0x7 << S5P_CLKDIV0_APLL_SHIFT) +#define S5P_CLKDIV0_A2M_SHIFT (4) +#define S5P_CLKDIV0_A2M_MASK (0x7 << S5P_CLKDIV0_A2M_SHIFT) +#define S5P_CLKDIV0_D0CLK_SHIFT (16) +#define S5P_CLKDIV0_D0CLK_MASK (0xF << S5P_CLKDIV0_D0CLK_SHIFT) +#define S5P_CLKDIV0_P0CLK_SHIFT (20) +#define S5P_CLKDIV0_P0CLK_MASK (0x7 << S5P_CLKDIV0_P0CLK_SHIFT) +#define S5P_CLKDIV0_D1CLK_SHIFT (24) +#define S5P_CLKDIV0_D1CLK_MASK (0xF << S5P_CLKDIV0_D1CLK_SHIFT) +#define S5P_CLKDIV0_P1CLK_SHIFT (28) +#define S5P_CLKDIV0_P1CLK_MASK (0x7 << S5P_CLKDIV0_P1CLK_SHIFT) + +/* Clock MUX status Registers */ +#define S5P_CLK_MUX_STAT0_APLL_SHIFT (0) +#define S5P_CLK_MUX_STAT0_APLL_MASK (0x7 << S5P_CLK_MUX_STAT0_APLL_SHIFT) +#define S5P_CLK_MUX_STAT0_MPLL_SHIFT (4) +#define S5P_CLK_MUX_STAT0_MPLL_MASK (0x7 << S5P_CLK_MUX_STAT0_MPLL_SHIFT) +#define S5P_CLK_MUX_STAT0_EPLL_SHIFT (8) +#define S5P_CLK_MUX_STAT0_EPLL_MASK (0x7 << S5P_CLK_MUX_STAT0_EPLL_SHIFT) +#define S5P_CLK_MUX_STAT0_VPLL_SHIFT (12) +#define S5P_CLK_MUX_STAT0_VPLL_MASK (0x7 << S5P_CLK_MUX_STAT0_VPLL_SHIFT) +#define S5P_CLK_MUX_STAT0_MUXARM_SHIFT (16) +#define S5P_CLK_MUX_STAT0_MUXARM_MASK (0x7 << S5P_CLK_MUX_STAT0_MUXARM_SHIFT) +#define S5P_CLK_MUX_STAT0_MUXD0_SHIFT (20) +#define S5P_CLK_MUX_STAT0_MUXD0_MASK (0x7 << S5P_CLK_MUX_STAT0_MUXD0_SHIFT) +#define S5P_CLK_MUX_STAT0_MUXD1_SHIFT (24) +#define S5P_CLK_MUX_STAT0_MUXD1_MASK (0x7 << S5P_CLK_MUX_STAT0_MUXD1_SHIFT) +#define S5P_CLK_MUX_STAT1_D1SYNC_SHIFT (24) +#define S5P_CLK_MUX_STAT1_D1SYNC_MASK (0x7 << S5P_CLK_MUX_STAT1_D1SYNC_SHIFT) +#define S5P_CLK_MUX_STAT1_D0SYNC_SHIFT (28) +#define S5P_CLK_MUX_STAT1_D0SYNC_MASK (0x7 << S5P_CLK_MUX_STAT1_D0SYNC_SHIFT) + +#endif /* __ASM_ARCH_REGS_CLOCK_H */ diff --git a/arch/arm/mach-s5p6442/include/mach/tick.h b/arch/arm/mach-s5p6442/include/mach/tick.h new file mode 100644 index 000000000000..e1d4cabf8297 --- /dev/null +++ b/arch/arm/mach-s5p6442/include/mach/tick.h @@ -0,0 +1,26 @@ +/* linux/arch/arm/mach-s5p6442/include/mach/tick.h + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Based on arch/arm/mach-s3c6400/include/mach/tick.h + * + * S5P6442 - Timer tick support definitions + * + * 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. +*/ + +#ifndef __ASM_ARCH_TICK_H +#define __ASM_ARCH_TICK_H __FILE__ + +static inline u32 s3c24xx_ostimer_pending(void) +{ + u32 pend = __raw_readl(VA_VIC0 + VIC_RAW_STATUS); + return pend & (1 << (IRQ_TIMER4_VIC - S5P_IRQ_VIC0(0))); +} + +#define TICK_MAX (0xffffffff) + +#endif /* __ASM_ARCH_TICK_H */ -- cgit v1.2.1