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Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-arm/arch-s3c2410/regs-s3c2443-clock.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/include/asm-arm/arch-s3c2410/regs-s3c2443-clock.h b/include/asm-arm/arch-s3c2410/regs-s3c2443-clock.h new file mode 100644 index 00000000000..e696554f9c2 --- /dev/null +++ b/include/asm-arm/arch-s3c2410/regs-s3c2443-clock.h @@ -0,0 +1,192 @@ +/* linux/include/asm-arm/arch-s3c2410/regs-clock.h + * + * Copyright (c) 2007 Simtec Electronics + * Ben Dooks <ben@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. + * + * S3C2443 clock register definitions +*/ + +#ifndef __ASM_ARM_REGS_S3C2443_CLOCK +#define __ASM_ARM_REGS_S3C2443_CLOCK + +#define S3C2443_CLKREG(x) ((x) + S3C24XX_VA_CLKPWR) + +#define S3C2443_PLLCON_MDIVSHIFT 16 +#define S3C2443_PLLCON_PDIVSHIFT 8 +#define S3C2443_PLLCON_SDIVSHIFT 0 +#define S3C2443_PLLCON_MDIVMASK ((1<<(1+(23-16)))-1) +#define S3C2443_PLLCON_PDIVMASK ((1<<(1+(9-8)))-1) +#define S3C2443_PLLCON_SDIVMASK (3) + +#define S3C2443_MPLLCON S3C2443_CLKREG(0x10) +#define S3C2443_EPLLCON S3C2443_CLKREG(0x18) +#define S3C2443_CLKSRC S3C2443_CLKREG(0x20) +#define S3C2443_CLKDIV0 S3C2443_CLKREG(0x24) +#define S3C2443_CLKDIV1 S3C2443_CLKREG(0x28) +#define S3C2443_HCLKCON S3C2443_CLKREG(0x30) +#define S3C2443_PCLKCON S3C2443_CLKREG(0x34) +#define S3C2443_SCLKCON S3C2443_CLKREG(0x38) +#define S3C2443_PWRMODE S3C2443_CLKREG(0x40) +#define S3C2443_SWRST S3C2443_CLKREG(0x44) +#define S3C2443_BUSPRI0 S3C2443_CLKREG(0x50) +#define S3C2443_SYSID S3C2443_CLKREG(0x5C) +#define S3C2443_PWRCFG S3C2443_CLKREG(0x60) +#define S3C2443_RSTCON S3C2443_CLKREG(0x64) + +#define S3C2443_PLLCON_OFF (1<<24) + +#define S3C2443_CLKSRC_I2S_EXT (1<<14) +#define S3C2443_CLKSRC_I2S_EPLLDIV (0<<14) +#define S3C2443_CLKSRC_I2S_EPLLREF (2<<14) +#define S3C2443_CLKSRC_I2S_EPLLREF3 (3<<14) +#define S3C2443_CLKSRC_I2S_MASK (3<<14) + +#define S3C2443_CLKSRC_EPLLREF_XTAL (2<<8) +#define S3C2443_CLKSRC_EPLLREF_EXTCLK (3<<8) +#define S3C2443_CLKSRC_EPLLREF_MPLLREF (0<<8) +#define S3C2443_CLKSRC_EPLLREF_MPLLREF2 (1<<8) +#define S3C2443_CLKSRC_EPLLREF_MASK (3<<8) + +#define S3C2443_CLKSRC_ESYSCLK_EPLL (1<<6) +#define S3C2443_CLKSRC_MSYSCLK_MPLL (1<<4) +#define S3C2443_CLKSRC_EXTCLK_DIV (1<<3) + +#define S3C2443_CLKDIV0_DVS (1<<13) +#define S3C2443_CLKDIV0_HALF_HCLK (1<<3) +#define S3C2443_CLKDIV0_HALF_PCLK (1<<2) + +#define S3C2443_CLKDIV0_HCLKDIV_MASK (3<<0) + +#define S3C2443_CLKDIV0_EXTDIV_MASK (3<<6) +#define S3C2443_CLKDIV0_EXTDIV_SHIFT (6) + +#define S3C2443_CLKDIV0_PREDIV_MASK (3<<4) +#define S3C2443_CLKDIV0_PREDIV_SHIFT (4) + +#define S3C2443_CLKDIV0_ARMDIV_MASK (15<<9) +#define S3C2443_CLKDIV0_ARMDIV_SHIFT (9) +#define S3C2443_CLKDIV0_ARMDIV_1 (0<<9) +#define S3C2443_CLKDIV0_ARMDIV_2 (8<<9) +#define S3C2443_CLKDIV0_ARMDIV_3 (2<<9) +#define S3C2443_CLKDIV0_ARMDIV_4 (9<<9) +#define S3C2443_CLKDIV0_ARMDIV_6 (10<<9) +#define S3C2443_CLKDIV0_ARMDIV_8 (11<<9) +#define S3C2443_CLKDIV0_ARMDIV_12 (13<<9) +#define S3C2443_CLKDIV0_ARMDIV_16 (15<<9) + +/* S3C2443_CLKDIV1 */ + +#define S3C2443_CLKDIV1_CAMDIV_MASK (15<<26) +#define S3C2443_CLKDIV1_CAMDIV_SHIFT (26) + +#define S3C2443_CLKDIV1_HSSPIDIV_MASK (3<<24) +#define S3C2443_CLKDIV1_HSSPIDIV_SHIFT (24) + +#define S3C2443_CLKDIV1_DISPDIV_MASK (0xff<<16) +#define S3C2443_CLKDIV1_DISPDIV_SHIFT (16) + +#define S3C2443_CLKDIV1_I2SDIV_MASK (15<<12) +#define S3C2443_CLKDIV1_I2SDIV_SHIFT (12) + +#define S3C2443_CLKDIV1_UARTDIV_MASK (15<<8) +#define S3C2443_CLKDIV1_UARTDIV_SHIFT (8) + +#define S3C2443_CLKDIV1_HSMMCDIV_MASK (3<<6) +#define S3C2443_CLKDIV1_HSMMCDIV_SHIFT (6) + +#define S3C2443_CLKDIV1_USBHOSTDIV_MASK (3<<4) +#define S3C2443_CLKDIV1_USBHOSTDIV_SHIFT (4) + +#define S3C2443_CLKCON_NAND + +#define S3C2443_HCLKCON_DMA0 (1<<0) +#define S3C2443_HCLKCON_DMA1 (1<<1) +#define S3C2443_HCLKCON_DMA2 (1<<2) +#define S3C2443_HCLKCON_DMA3 (1<<3) +#define S3C2443_HCLKCON_DMA4 (1<<4) +#define S3C2443_HCLKCON_DMA5 (1<<5) +#define S3C2443_HCLKCON_CAMIF (1<<8) +#define S3C2443_HCLKCON_DISP (1<<9) +#define S3C2443_HCLKCON_LCDC (1<<10) +#define S3C2443_HCLKCON_USBH (1<<11) +#define S3C2443_HCLKCON_USBD (1<<12) +#define S3C2443_HCLKCON_HSMMC (1<<16) +#define S3C2443_HCLKCON_CFC (1<<17) +#define S3C2443_HCLKCON_SSMC (1<<18) +#define S3C2443_HCLKCON_DRAMC (1<<19) + +#define S3C2443_PCLKCON_UART0 (1<<0) +#define S3C2443_PCLKCON_UART1 (1<<1) +#define S3C2443_PCLKCON_UART2 (1<<2) +#define S3C2443_PCLKCON_UART3 (1<<3) +#define S3C2443_PCLKCON_IIC (1<<4) +#define S3C2443_PCLKCON_SDI (1<<5) +#define S3C2443_PCLKCON_ADC (1<<7) +#define S3C2443_PCLKCON_IIS (1<<9) +#define S3C2443_PCLKCON_PWMT (1<<10) +#define S3C2443_PCLKCON_WDT (1<<11) +#define S3C2443_PCLKCON_RTC (1<<12) +#define S3C2443_PCLKCON_GPIO (1<<13) +#define S3C2443_PCLKCON_SPI0 (1<<14) +#define S3C2443_PCLKCON_SPI1 (1<<15) + +#define S3C2443_SCLKCON_DDRCLK (1<<16) +#define S3C2443_SCLKCON_SSMCCLK (1<<15) +#define S3C2443_SCLKCON_HSSPICLK (1<<14) +#define S3C2443_SCLKCON_HSMMCCLK_EXT (1<<13) +#define S3C2443_SCLKCON_HSMMCCLK_EPLL (1<<12) +#define S3C2443_SCLKCON_CAMCLK (1<<11) +#define S3C2443_SCLKCON_DISPCLK (1<<10) +#define S3C2443_SCLKCON_I2SCLK (1<<9) +#define S3C2443_SCLKCON_UARTCLK (1<<8) +#define S3C2443_SCLKCON_USBHOST (1<<1) + +#include <asm/div64.h> + +static inline unsigned int +s3c2443_get_mpll(unsigned int pllval, unsigned int baseclk) +{ + unsigned int mdiv, pdiv, sdiv; + uint64_t fvco; + + mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT; + pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT; + sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT; + + mdiv &= S3C2443_PLLCON_MDIVMASK; + pdiv &= S3C2443_PLLCON_PDIVMASK; + sdiv &= S3C2443_PLLCON_SDIVMASK; + + fvco = (uint64_t)baseclk * (2 * (mdiv + 8)); + do_div(fvco, pdiv << sdiv); + + return (unsigned int)fvco; +} + +static inline unsigned int +s3c2443_get_epll(unsigned int pllval, unsigned int baseclk) +{ + unsigned int mdiv, pdiv, sdiv; + uint64_t fvco; + + mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT; + pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT; + sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT; + + mdiv &= S3C2443_PLLCON_MDIVMASK; + pdiv &= S3C2443_PLLCON_PDIVMASK; + sdiv &= S3C2443_PLLCON_SDIVMASK; + + fvco = (uint64_t)baseclk * (mdiv + 8); + do_div(fvco, (pdiv + 2) << sdiv); + + return (unsigned int)fvco; +} + +#endif /* __ASM_ARM_REGS_S3C2443_CLOCK */ + |