Remove some unused code.

Signed-off-by: Nils Jacobs <njacobs8@hetnet.nl>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6010 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 2 insertions, 171 deletions

diff --git a/src/northbridge/amd/gx2/pll_reset.c b/src/northbridge/amd/gx2/pll_reset.c
index 19b0946346..f9e780cb61 100644
--- a/src/northbridge/amd/gx2/pll_reset.c
+++ b/src/northbridge/amd/gx2/pll_reset.c
@@ -24,69 +24,6 @@
 #define CALIBRATE_INTERVAL ((20*CLOCK_TICK_RATE)/1000) /* 20ms */
 #define CALIBRATE_DIVISOR  (20*1000) /* 20ms / 20000 == 1usec */
 
-#if 0
-static unsigned int calibrate_tsc(void)
-{
-	/* Set the Gate high, disable speaker */
-	outb((inb(0x61) & ~0x02) | 0x01, 0x61);
-
-	/*
-	 * Now let's take care of CTC channel 2
-	 *
-	 * Set the Gate high, program CTC channel 2 for mode 0,
-	 * (interrupt on terminal count mode), binary count,
-	 * load 5 * LATCH count, (LSB and MSB) to begin countdown.
-	 */
-	outb(0xb0, 0x43);			/* binary, mode 0, LSB/MSB, Ch 2 */
-	outb(CALIBRATE_INTERVAL	& 0xff, 0x42);	/* LSB of count */
-	outb(CALIBRATE_INTERVAL	>> 8, 0x42);	/* MSB of count */
-
-	{
-		tsc_t start;
-		tsc_t end;
-		unsigned long count;
-
-		start = rdtsc();
-		count = 0;
-		do {
-			count++;
-		} while ((inb(0x61) & 0x20) == 0);
-		end = rdtsc();
-
-		/* Error: ECTCNEVERSET */
-		if (count <= 1)
-			goto bad_ctc;
-
-		/* 64-bit subtract - gcc just messes up with long longs */
-		__asm__("subl %2,%0\n\t"
-			"sbbl %3,%1"
-			:"=a" (end.lo), "=d" (end.hi)
-			:"g" (start.lo), "g" (start.hi),
-			 "0" (end.lo), "1" (end.hi));
-
-		/* Error: ECPUTOOFAST */
-		if (end.hi)
-			goto bad_ctc;
-
-
-		/* Error: ECPUTOOSLOW */
-		if (end.lo <= CALIBRATE_DIVISOR)
-			goto bad_ctc;
-
-		return (end.lo + CALIBRATE_DIVISOR -1)/CALIBRATE_DIVISOR;
-	}
-
-	/*
-	 * The CTC wasn't reliable: we got a hit on the very first read,
-	 * or the CPU was so fast/slow that the quotient wouldn't fit in
-	 * 32 bits..
-	 */
-bad_ctc:
-	print_err("bad_ctc\n");
-	return 0;
-}
-#endif
-
 /* spll_raw_clk = SYSREF * FbDIV,
  * GLIU Clock   = spll_raw_clk / MDIV
  * CPU Clock    = spll_raw_clk / VDIV
@@ -108,17 +45,6 @@ static const unsigned char fbdiv2plldiv[] = {
 	49, 40, 19, 59, 32, 54, 35,  0, 41, 60, 55,  0, 61,  0,  0,  0
 };
 
-static const unsigned char pci33_ddr_crt [] = {
-	/* FbDIV, VDIV, MDIV		   CPU/GeodeLink */
-	     12,    2,    3,		// 200/133
-	     16,    2,    3,		// 266/177
-             18,    2,    3,		// 300/200
-             20,    2,    3,		// 333/222
-             22,    2,    3,		// 366/244
-             24,    2,    3,		// 400/266
-             26,    2,    3             // 433/289
-};
-
 /*	FbDIV	VDIV	MDIV	CPU/GeodeLink */
 /*	12	2	3	200/133 */
 /*	16	2	3	266/177 */
@@ -128,31 +54,12 @@ static const unsigned char pci33_ddr_crt [] = {
 /*	24	2	3	400/266 */
 /*	26	2	3	433/289 */
 
-#if 0
-static unsigned int get_memory_speed(void)
-{
-	unsigned char val, hi, lo;
-
-	val = spd_read_byte(0xA0, 9);
-	hi = (val >> 4) & 0x0f;
-	lo = val & 0x0f;
-
-	return 20000/(hi*10 + lo);
-}
-#endif
-
-#define USE_GOODRICH_VERSION 1
-
-#if USE_GOODRICH_VERSION
-///////////////////////////////////////////////////////////////////////////////
-// Goodrich Version of pll_reset
-
 /* PLLCHECK_COMPLETED is the "we've already done this" flag */
 #define PLLCHECK_COMPLETED (1 << RSTPLL_LOWER_SWFLAGS_SHIFT)
 
 #ifndef RSTPPL_LOWER_BYPASS_SET
 #define RSTPPL_LOWER_BYPASS_SET (1 << GLCP_SYS_RSTPLL_BYPASS)
-#endif /* RSTPPL_LOWER_BYPASS_SET */
+#endif // RSTPPL_LOWER_BYPASS_SET
 
 #define DEFAULT_MDIV	3
 #define DEFAULT_VDIV	2
@@ -218,7 +125,7 @@ static void pll_reset(void)
 		/* CheckSemiSync proc */
 		/* Check for Semi-Sync in GeodeLink and CPU. */
 		/* We need to do this here since the strap settings don't account for these bits. */
-		SyncBits = 0;			// store the sync bits in up ebx
+		SyncBits = 0;			/* store the sync bits in up ebx */
 
 		/* Check for Bypass mode. */
 		if (msrGlcpSysRstpll.lo & RSTPPL_LOWER_BYPASS_SET)
@@ -247,7 +154,6 @@ static void pll_reset(void)
 			}
 		}
 
-
 		/*	SetSync: */
 		msrGlcpSysRstpll.lo &= ~(RSTPPL_LOWER_PCI_SEMI_SYNC_SET | RSTPPL_LOWER_CPU_SEMI_SYNC_SET);
 		msrGlcpSysRstpll.lo |= SyncBits;
@@ -273,78 +179,3 @@ static void pll_reset(void)
 	} /* we haven't configured the PLL; do it now */
 
 }
-// End of Goodrich version of pll_reset
-///////////////////////////////////////////////////////////////////////////////
-
-#else // #if USE_GOODRICH_VERSION
-
-static void pll_reset(void)
-{
-	msr_t msr;
-	unsigned int sysref, spll_raw, cpu_core, gliu;
-	unsigned mdiv, vdiv, fbdiv;
-
-	/* get CPU core clock in MHZ */
-	cpu_core = calibrate_tsc();
-	print_debug("Cpu core is ");
-	print_debug_hex32(cpu_core);
-	print_debug("\n");
-
-	msr = rdmsr(GLCP_SYS_RSTPLL);
-	if (msr.lo & (1 << GLCP_SYS_RSTPLL_BYPASS)) {
-#if 0
-		print_debug("MSR ");
-		print_debug_hex32(GLCP_SYS_RSTPLL);
-		print_debug("is ");
-		print_debug_hex32(msr.hi);
-		print_debug(":");
-		print_debug_hex32(msr.lo);
-
-		msr.hi = PLLMSRhi;
-		msr.lo = PLLMSRlo;
-		wrmsr(GLCP_SYS_RSTPLL, msr);
-		msr.lo |= PLLMSRlo1;
-		wrmsr(GLCP_SYS_RSTPLL, msr);
-
-		print_debug("Reset PLL\n");
-
-		msr.lo |= PLLMSRlo2;
-		wrmsr(GLCP_SYS_RSTPLL,msr);
-		print_debug("should not be here\n");
-#endif
-		print_err("shit");
-		while (1)
-			;
-	}
-
-	if (msr.lo & GLCP_SYS_RSTPLL_SWFLAGS_MASK) {
-		/* PLL is already set and we are reboot from PLL reset */
-		print_debug("reboot from BIOS reset\n");
-		return;
-	}
-
-	/* get the sysref clock rate */
-	vdiv  = (msr.hi >> GLCP_SYS_RSTPLL_VDIV_SHIFT) & 0x07;
-	vdiv += 2;
-	fbdiv = (msr.hi >> GLCP_SYS_RSTPLL_FBDIV_SHIFT) & 0x3f;
-	fbdiv = fbdiv2plldiv[fbdiv];
-	spll_raw = cpu_core * vdiv;
-	sysref   = spll_raw / fbdiv;
-
-	/* get target memory rate by SPD */
-	//gliu = get_memory_speed();
-
-	msr.hi = 0x00000019;
-	msr.lo = 0x06de0378;
-	wrmsr(0x4c000014, msr);
-	msr.lo |= ((0xde << 16) | (1 << 26) | (1 << 24));
-	wrmsr(0x4c000014, msr);
-
-	print_debug("Reset PLL\n");
-
-	msr.lo |= ((1<<14) |(1<<13) | (1<<0));
-	wrmsr(0x4c000014,msr);
-
-	print_debug("should not be here\n");
-}
-#endif // #if USE_GOODRICH_VERSION