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arm926ejs, davinci: add cpuinfo for dm365

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Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This commit is contained in:
Heiko Schocher 2011-11-01 20:00:33 +00:00 committed by Albert ARIBAUD
parent 53d3b2ceed
commit 29b0bef54c
2 changed files with 29 additions and 2 deletions
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27
arch/arm/cpu/arm926ejs/davinci/cpu.c
View File

@ -146,13 +146,15 @@ static inline unsigned pll_prediv(volatile void *pllbase)
return 8;
else
return pll_div(pllbase, PLLC_PREDIV);
#elif defined(CONFIG_SOC_DM365)
return pll_div(pllbase, PLLC_PREDIV);
#endif
return 1;
}
static inline unsigned pll_postdiv(volatile void *pllbase)
{
#ifdef CONFIG_SOC_DM355
#if defined(CONFIG_SOC_DM355) || defined(CONFIG_SOC_DM365)
return pll_div(pllbase, PLLC_POSTDIV);
#elif defined(CONFIG_SOC_DM6446)
if (pllbase == (volatile void *)DAVINCI_PLL_CNTRL0_BASE)
@ -171,9 +173,13 @@ static unsigned pll_sysclk_mhz(unsigned pll_addr, unsigned div)
#endif
/* the PLL might be bypassed */
if (REG(pllbase + PLLC_PLLCTL) & BIT(0)) {
if (readl(pllbase + PLLC_PLLCTL) & BIT(0)) {
base /= pll_prediv(pllbase);
#if defined(CONFIG_SOC_DM365)
base *= 2 * (readl(pllbase + PLLC_PLLM) & 0x0ff);
#else
base *= 1 + (REG(pllbase + PLLC_PLLM) & 0x0ff);
#endif
base /= pll_postdiv(pllbase);
}
return DIV_ROUND_UP(base, 1000 * pll_div(pllbase, div));
@ -184,8 +190,13 @@ int print_cpuinfo(void)
/* REVISIT fetch and display CPU ID and revision information
* too ... that will matter as more revisions appear.
*/
#if defined(CONFIG_SOC_DM365)
printf("Cores: ARM %d MHz",
pll_sysclk_mhz(DAVINCI_PLL_CNTRL1_BASE, ARM_PLLDIV));
#else
printf("Cores: ARM %d MHz",
pll_sysclk_mhz(DAVINCI_PLL_CNTRL0_BASE, ARM_PLLDIV));
#endif
#ifdef DSP_PLLDIV
printf(", DSP %d MHz",
@ -194,8 +205,13 @@ int print_cpuinfo(void)
printf("\nDDR: %d MHz\n",
/* DDR PHY uses an x2 input clock */
#if defined(CONFIG_SOC_DM365)
pll_sysclk_mhz(DAVINCI_PLL_CNTRL0_BASE, DDR_PLLDIV)
/ 2);
#else
pll_sysclk_mhz(DAVINCI_PLL_CNTRL1_BASE, DDR_PLLDIV)
/ 2);
#endif
return 0;
}
@ -205,6 +221,13 @@ unsigned int davinci_arm_clk_get()
return pll_sysclk_mhz(DAVINCI_PLL_CNTRL0_BASE, ARM_PLLDIV) * 1000000;
}
#endif
#if defined(CONFIG_SOC_DM365)
unsigned int davinci_clk_get(unsigned int div)
{
return pll_sysclk_mhz(DAVINCI_PLL_CNTRL0_BASE, div) * 1000000;
}
#endif
#endif /* CONFIG_DISPLAY_CPUINFO */
#endif /* !CONFIG_SOC_DA8XX */

4
arch/arm/include/asm/arch-davinci/pll_defs.h
View File

@ -76,4 +76,8 @@ struct dv_pll_regs {
#define dv_pll0_regs ((struct dv_pll_regs *)DAVINCI_PLL_CNTRL0_BASE)
#define dv_pll1_regs ((struct dv_pll_regs *)DAVINCI_PLL_CNTRL1_BASE)
#define ARM_PLLDIV (offsetof(struct dv_pll_regs, plldiv2))
#define DDR_PLLDIV (offsetof(struct dv_pll_regs, plldiv7))
unsigned int davinci_clk_get(unsigned int div);
#endif /* _DV_PLL_DEFS_H_ */