From: Koen Martens <linuxarm@metro.cx>
To: linux-arm-kernel@lists.arm.linux.org.uk, ben@simtec.co.uk,
linux-kernel@vger.kernel.org
Subject: [patch 5/14] s3c2412/s3c2413 support
Date: Fri, 03 Mar 2006 12:02:19 +0100 [thread overview]
Message-ID: <4408223B.2060605@metro.cx> (raw)
Added function to get s3c2412 pll.
Added extra/changed CLKDIV register bits for s3c2412.
Signed-off-by: Koen Martens <gmc@sonologic.nl>
--- linux-2.6.15.4/include/asm-arm/arch-s3c2410/regs-clock.h
2006-02-10 08:22:48.000000000 +0100
+++ golinux/include/asm-arm/arch-s3c2410/regs-clock.h 2006-03-03
11:02:19.000000000 +0100
@@ -112,6 +112,29 @@
return (unsigned int)fvco;
}
+#ifdef CONFIG_CPU_S3C2412
+static inline unsigned int
+s3c2412_get_pll(int pllval, int baseclk)
+{
+ 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)<<1);
+ do_div(fvco, (pdiv + 2) << sdiv);
+
+ return (unsigned int)fvco;
+}
+#endif /* CONFIG_CPU_S3C2412 */
+
+
#endif /* __ASSEMBLY__ */
#ifdef CONFIG_CPU_S3C2440
@@ -138,5 +161,21 @@
#endif /* CONFIG_CPU_S3C2440 */
+#ifdef CONFIG_CPU_S3C2412
+
+#define S3C2412_CLKDIVN_HCLKDIV_MASK (3<<0)
+#define S3C2412_CLKDIVN_HCLKDIV_1_2 (0<<0)
+#define S3C2412_CLKDIVN_HCLKDIV_2_4 (1<<0)
+#define S3C2412_CLKDIVN_HCLKDIV_3_6 (2<<0)
+#define S3C2412_CLKDIVN_HCLKDIV_4_8 (3<<0)
+#define S3C2412_CLKDIVN_PCLKDIV (1<<2)
+#define S3C2412_CLKDIVN_ARMDIV (1<<3)
+#define S3C2412_CLKDIVN_DVSEN (1<<4)
+#define S3C2412_CLKDIVN_HALFHCLK (1<<5)
+#define S3C2412_CLKDIVN_USB48DIV (1<<6)
+#define S3C2412_CLKDIVN_UARTCLK_MASK (15<<8)
+#define S3C2412_CLKDIVN_I2SCLK_MASK (15<<12)
+
+#endif /* CONFIG_CPU_S3C2412 */
#endif /* __ASM_ARM_REGS_CLOCK */
--
K.F.J. Martens, Sonologic, http://www.sonologic.nl/
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reply other threads:[~2006-03-03 11:02 UTC|newest]
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