| /* linux/include/asm/arch-s3c2410/regs-clock.h |
| * |
| * Copyright (c) 2003,2004,2005 Simtec Electronics <linux@simtec.co.uk> |
| * http://armlinux.simtec.co.uk/ |
| * |
| * 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. |
| * |
| * S3C2410 clock register definitions |
| * |
| * Changelog: |
| * 18-Aug-2004 Ben Dooks Added 2440 definitions |
| * 08-Aug-2004 Herbert Pötzl Added CLKCON definitions |
| * 19-06-2003 Ben Dooks Created file |
| * 12-03-2004 Ben Dooks Updated include protection |
| * 29-Sep-2004 Ben Dooks Fixed usage for assembly inclusion |
| * 10-Feb-2005 Ben Dooks Fixed CAMDIVN address (Guillaume Gourat) |
| * 10-Mar-2005 Lucas Villa Real Changed S3C2410_VA to S3C24XX_VA |
| * 27-Aug-2005 Ben Dooks Add clock-slow info |
| * 20-Oct-2005 Ben Dooks Fixed overflow in PLL (Guillaume Gourat) |
| * 20-Oct-2005 Ben Dooks Add masks for DCLK (Guillaume Gourat) |
| */ |
| |
| #ifndef __ASM_ARM_REGS_CLOCK |
| #define __ASM_ARM_REGS_CLOCK "$Id: clock.h,v 1.4 2003/04/30 14:50:51 ben Exp $" |
| |
| #define S3C2410_CLKREG(x) ((x) + S3C24XX_VA_CLKPWR) |
| |
| #define S3C2410_PLLVAL(_m,_p,_s) ((_m) << 12 | ((_p) << 4) | ((_s))) |
| |
| #define S3C2410_LOCKTIME S3C2410_CLKREG(0x00) |
| #define S3C2410_MPLLCON S3C2410_CLKREG(0x04) |
| #define S3C2410_UPLLCON S3C2410_CLKREG(0x08) |
| #define S3C2410_CLKCON S3C2410_CLKREG(0x0C) |
| #define S3C2410_CLKSLOW S3C2410_CLKREG(0x10) |
| #define S3C2410_CLKDIVN S3C2410_CLKREG(0x14) |
| |
| #define S3C2410_CLKCON_IDLE (1<<2) |
| #define S3C2410_CLKCON_POWER (1<<3) |
| #define S3C2410_CLKCON_NAND (1<<4) |
| #define S3C2410_CLKCON_LCDC (1<<5) |
| #define S3C2410_CLKCON_USBH (1<<6) |
| #define S3C2410_CLKCON_USBD (1<<7) |
| #define S3C2410_CLKCON_PWMT (1<<8) |
| #define S3C2410_CLKCON_SDI (1<<9) |
| #define S3C2410_CLKCON_UART0 (1<<10) |
| #define S3C2410_CLKCON_UART1 (1<<11) |
| #define S3C2410_CLKCON_UART2 (1<<12) |
| #define S3C2410_CLKCON_GPIO (1<<13) |
| #define S3C2410_CLKCON_RTC (1<<14) |
| #define S3C2410_CLKCON_ADC (1<<15) |
| #define S3C2410_CLKCON_IIC (1<<16) |
| #define S3C2410_CLKCON_IIS (1<<17) |
| #define S3C2410_CLKCON_SPI (1<<18) |
| |
| #define S3C2410_PLLCON_MDIVSHIFT 12 |
| #define S3C2410_PLLCON_PDIVSHIFT 4 |
| #define S3C2410_PLLCON_SDIVSHIFT 0 |
| #define S3C2410_PLLCON_MDIVMASK ((1<<(1+(19-12)))-1) |
| #define S3C2410_PLLCON_PDIVMASK ((1<<5)-1) |
| #define S3C2410_PLLCON_SDIVMASK 3 |
| |
| /* DCLKCON register addresses in gpio.h */ |
| |
| #define S3C2410_DCLKCON_DCLK0EN (1<<0) |
| #define S3C2410_DCLKCON_DCLK0_PCLK (0<<1) |
| #define S3C2410_DCLKCON_DCLK0_UCLK (1<<1) |
| #define S3C2410_DCLKCON_DCLK0_DIV(x) (((x) - 1 )<<4) |
| #define S3C2410_DCLKCON_DCLK0_CMP(x) (((x) - 1 )<<8) |
| #define S3C2410_DCLKCON_DCLK0_DIV_MASK ((0xf)<<4) |
| #define S3C2410_DCLKCON_DCLK0_CMP_MASK ((0xf)<<8) |
| |
| #define S3C2410_DCLKCON_DCLK1EN (1<<16) |
| #define S3C2410_DCLKCON_DCLK1_PCLK (0<<17) |
| #define S3C2410_DCLKCON_DCLK1_UCLK (1<<17) |
| #define S3C2410_DCLKCON_DCLK1_DIV(x) (((x) - 1) <<20) |
| #define S3C2410_DCLKCON_DCLK1_CMP(x) (((x) - 1) <<24) |
| #define S3C2410_DCLKCON_DCLK1_DIV_MASK ((0xf) <<20) |
| #define S3C2410_DCLKCON_DCLK1_CMP_MASK ((0xf) <<24) |
| |
| #define S3C2410_CLKDIVN_PDIVN (1<<0) |
| #define S3C2410_CLKDIVN_HDIVN (1<<1) |
| |
| #define S3C2410_CLKSLOW_UCLK_OFF (1<<7) |
| #define S3C2410_CLKSLOW_MPLL_OFF (1<<5) |
| #define S3C2410_CLKSLOW_SLOW (1<<4) |
| #define S3C2410_CLKSLOW_SLOWVAL(x) (x) |
| #define S3C2410_CLKSLOW_GET_SLOWVAL(x) ((x) & 7) |
| |
| #ifndef __ASSEMBLY__ |
| |
| #include <asm/div64.h> |
| |
| static inline unsigned int |
| s3c2410_get_pll(unsigned int pllval, unsigned int baseclk) |
| { |
| unsigned int mdiv, pdiv, sdiv; |
| uint64_t fvco; |
| |
| mdiv = pllval >> S3C2410_PLLCON_MDIVSHIFT; |
| pdiv = pllval >> S3C2410_PLLCON_PDIVSHIFT; |
| sdiv = pllval >> S3C2410_PLLCON_SDIVSHIFT; |
| |
| mdiv &= S3C2410_PLLCON_MDIVMASK; |
| pdiv &= S3C2410_PLLCON_PDIVMASK; |
| sdiv &= S3C2410_PLLCON_SDIVMASK; |
| |
| fvco = (uint64_t)baseclk * (mdiv + 8); |
| do_div(fvco, (pdiv + 2) << sdiv); |
| |
| return (unsigned int)fvco; |
| } |
| |
| #endif /* __ASSEMBLY__ */ |
| |
| #if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2442) |
| |
| /* extra registers */ |
| #define S3C2440_CAMDIVN S3C2410_CLKREG(0x18) |
| |
| #define S3C2440_CLKCON_CAMERA (1<<19) |
| #define S3C2440_CLKCON_AC97 (1<<20) |
| |
| #define S3C2440_CLKDIVN_PDIVN (1<<0) |
| #define S3C2440_CLKDIVN_HDIVN_MASK (3<<1) |
| #define S3C2440_CLKDIVN_HDIVN_1 (0<<1) |
| #define S3C2440_CLKDIVN_HDIVN_2 (1<<1) |
| #define S3C2440_CLKDIVN_HDIVN_4_8 (2<<1) |
| #define S3C2440_CLKDIVN_HDIVN_3_6 (3<<1) |
| #define S3C2440_CLKDIVN_UCLK (1<<3) |
| |
| #define S3C2440_CAMDIVN_CAMCLK_MASK (0xf<<0) |
| #define S3C2440_CAMDIVN_CAMCLK_SEL (1<<4) |
| #define S3C2440_CAMDIVN_HCLK3_HALF (1<<8) |
| #define S3C2440_CAMDIVN_HCLK4_HALF (1<<9) |
| #define S3C2440_CAMDIVN_DVSEN (1<<12) |
| |
| #define S3C2442_CAMDIVN_CAMCLK_DIV3 (1<<5) |
| |
| #endif /* CONFIG_CPU_S3C2440 or CONFIG_CPU_S3C2442 */ |
| |
| |
| #endif /* __ASM_ARM_REGS_CLOCK */ |