78af473530
Fix the S3C2443 clock register definitions for selecting the EPLL reference clock described by S3C2443_CLKSRC_EPLLREF. Signed-off-by: Wei Shuai <cpuwolf@gmail.com> [ben-linux@fluff.org: minor description fixes] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
195 lines
5.9 KiB
C
195 lines
5.9 KiB
C
/* arch/arm/mach-s3c2410/include/mach/regs-s3c2443-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_SWRST_RESET (0x533c2443)
|
|
|
|
#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<<7)
|
|
#define S3C2443_CLKSRC_EPLLREF_EXTCLK (3<<7)
|
|
#define S3C2443_CLKSRC_EPLLREF_MPLLREF (0<<7)
|
|
#define S3C2443_CLKSRC_EPLLREF_MPLLREF2 (1<<7)
|
|
#define S3C2443_CLKSRC_EPLLREF_MASK (3<<7)
|
|
|
|
#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_AC97 (1<<8)
|
|
#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 */
|
|
|