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Clean up some more comments and white space in model_gx2/cpureginit.c.

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This is Abuild and boot tested.

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@6015 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Nils Jacobs
2010-11-03 13:21:41 +00:00
committed by Uwe Hermann
parent 5beac7f996
commit e98db798c9
1 changed files with 55 additions and 74 deletions
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123
src/cpu/amd/model_gx2/cpureginit.c
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@@ -1,16 +1,12 @@
/* ***************************************************************************/ /* cpuRegInit */
/* * cpuRegInit*/
/* ***************************************************************************/
void cpuRegInit (void) void cpuRegInit (void)
{ {
int msrnum; int msrnum;
msr_t msr; msr_t msr;
/* Turn on BTM for early debug based on setup. */ /* Turn on BTM for early debug based on setup. */
/*if (getnvram( TOKEN_BTM_DIAG_MODE) & 3) {*/ /* if (getnvram( TOKEN_BTM_DIAG_MODE) & 3) { */
/* /* The following is only for diagnostics mode; do not use for OLPC */
* The following is only for diagnostics mode; do not use for OLPC
*/
if (0) { if (0) {
/* Set Diagnostic Mode */ /* Set Diagnostic Mode */
msrnum = CPU_GLD_MSR_DIAG; msrnum = CPU_GLD_MSR_DIAG;
@@ -18,117 +14,107 @@ void cpuRegInit (void)
msr.lo = DIAG_SEL1_SET | DIAG_SET0_SET; msr.lo = DIAG_SEL1_SET | DIAG_SET0_SET;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* Set up GLCP to grab BTM data.*/ /* Set up GLCP to grab BTM data. */
msrnum = 0x04C00000C; /* GLCP_DBGOUT MSR*/ msrnum = 0x04C00000C; /* GLCP_DBGOUT MSR */
msr.hi = 0x0; msr.hi = 0x0;
msr.lo = 0x08; /* reset value (SCOPE_SEL = 0) causes FIFO toshift out,*/ msr.lo = 0x08; /* reset value (SCOPE_SEL = 0) causes FIFO toshift out, */
wrmsr(msrnum, msr); /* exchange it to anything else to prevent this*/ wrmsr(msrnum, msr); /* exchange it to anything else to prevent this */
/* ;Turn off debug clock*/ /* Turn off debug clock */
msrnum = 0x04C000016; /* DBG_CLK_CTL*/ msrnum = 0x04C000016; /* DBG_CLK_CTL*/
msr.lo = 0x00; /* No clock*/ msr.lo = 0x00; /* No clock*/
msr.hi = 0x00; msr.hi = 0x00;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* ;Set debug clock to CPU*/ /* Set debug clock to CPU */
msrnum = 0x04C000016; /* DBG_CLK_CTL*/ msrnum = 0x04C000016; /* DBG_CLK_CTL */
msr.lo = 0x01; /* CPU CLOCK*/ msr.lo = 0x01; /* CPU CLOCK */
msr.hi = 0x00; msr.hi = 0x00;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* ;Set fifo ctl to BTM bits wide*/ /* Set fifo ctl to BTM bits wide */
msrnum = 0x04C00005E; /* FIFO_CTL*/ msrnum = 0x04C00005E; /* FIFO_CTL */
msr.lo = 0x003880000; /* Bit [25:24] are size (11=BTM, 10 = 64 bit, 01= 32 bit, 00 = 16bit)*/ msr.lo = 0x003880000; /* Bit [25:24] are size (11=BTM, 10 = 64 bit, 01= 32 bit, 00 = 16bit) */
wrmsr(msrnum, msr); /* Bit [23:21] are position (100 = CPU downto0)*/ wrmsr(msrnum, msr); /* Bit [23:21] are position (100 = CPU downto0) */
/* Bit [19] sets it up in slow data mode.*/ /* Bit [19] sets it up in slow data mode. */
/* ;enable fifo loading - BTM sizing will constrain*/ /* enable fifo loading - BTM sizing will constrain */
/* ; only valid BTM packets to load - this action should always be on*/ /* only valid BTM packets to load - this action should always be on */
msrnum = 0x04C00006F; /* GLCP ACTION7 - load fifo */
msrnum = 0x04C00006F; /* GLCP ACTION7 - load fifo*/ msr.lo = 0x00000F000; /* Any nibble all 1's will always trigger */
msr.lo = 0x00000F000; /* Any nibble all 1's will always trigger*/
msr.hi = 0x000000000; /* */
wrmsr(msrnum, msr);
/* ;start storing diag data in the fifo*/
msrnum = 0x04C00005F; /* DIAG CTL*/
msr.lo = 0x080000000; /* enable actions*/
msr.hi = 0x000000000; msr.hi = 0x000000000;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* Set up delay on data lines, so that the hold time*/ /* start storing diag data in the fifo */
/* is 1 ns.*/ msrnum = 0x04C00005F; /* DIAG CTL */
msrnum = 0x04C00000D ; /* GLCP IO DELAY CONTROLS*/ msr.lo = 0x080000000; /* enable actions */
msr.lo = 0x082b5ad68; msr.hi = 0x000000000;
msr.hi = 0x080ad6b57; /* RGB delay = 0x07*/
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* Set up DF to output diag information on DF pins.*/ /* Set up delay on data lines, so that the hold time */
/* is 1 ns. */
msrnum = 0x04C00000D ; /* GLCP IO DELAY CONTROLS */
msr.lo = 0x082b5ad68;
msr.hi = 0x080ad6b57; /* RGB delay = 0x07 */
wrmsr(msrnum, msr);
/* Set up DF to output diag information on DF pins. */
msrnum = DF_GLD_MSR_MASTER_CONF; msrnum = DF_GLD_MSR_MASTER_CONF;
msr.lo = 0x0220; msr.lo = 0x0220;
msr.hi = 0; msr.hi = 0;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
msrnum = 0x04C00000C ; /* GLCP_DBGOUT MSR*/ msrnum = 0x04C00000C ; /* GLCP_DBGOUT MSR */
msr.hi = 0x0; msr.hi = 0x0;
msr.lo = 0x0; /* reset value (SCOPE_SEL = 0) causes FIFO to shift out,*/ msr.lo = 0x0; /* reset value (SCOPE_SEL = 0) causes FIFO to shift out, */
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* end of code for BTM */ /* end of code for BTM */
} }
/* Enable Suspend on Halt*/ /* Enable Suspend on Halt */
msrnum = CPU_XC_CONFIG; msrnum = CPU_XC_CONFIG;
msr = rdmsr(msrnum); msr = rdmsr(msrnum);
msr.lo |= XC_CONFIG_SUSP_ON_HLT; msr.lo |= XC_CONFIG_SUSP_ON_HLT;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* ENable SUSP and allow TSC to run in Suspend */ /* ENable SUSP and allow TSC to run in Suspend */
/* to keep speed detection happy*/ /* to keep speed detection happy */
msrnum = CPU_BC_CONF_0; msrnum = CPU_BC_CONF_0;
msr = rdmsr(msrnum); msr = rdmsr(msrnum);
msr.lo |= TSC_SUSP_SET | SUSP_EN_SET; msr.lo |= TSC_SUSP_SET | SUSP_EN_SET;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* Setup throttling to proper mode if it is ever enabled.*/ /* Setup throttling to proper mode if it is ever enabled. */
msrnum = 0x04C00001E; msrnum = 0x04C00001E;
msr.hi = 0x000000000; msr.hi = 0x000000000;
msr.lo = 0x00000603C; msr.lo = 0x00000603C;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* Only do this if we are building for 5535 */
/* Only do this if we are building for 5535*/ /* FooGlue Setup */
/* */
/* FooGlue Setup*/
/* */
#if 1 #if 1
/* Enable CIS mode B in FooGlue*/ /* Enable CIS mode B in FooGlue */
msrnum = MSR_FG + 0x10; msrnum = MSR_FG + 0x10;
msr = rdmsr(msrnum); msr = rdmsr(msrnum);
msr.lo &= ~3; msr.lo &= ~3;
msr.lo |= 2; /* ModeB*/ msr.lo |= 2; /* ModeB */
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
#endif #endif
/* */ /* Disable DOT PLL. Graphics init will enable it if needed. */
/* Disable DOT PLL. Graphics init will enable it if needed.*/
/* */
msrnum = GLCP_DOTPLL; msrnum = GLCP_DOTPLL;
msr = rdmsr(msrnum); msr = rdmsr(msrnum);
msr.lo |= DOTPPL_LOWER_PD_SET; msr.lo |= DOTPPL_LOWER_PD_SET;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* */ /* Enable RSDC */
/* Enable RSDC*/
/* */
msrnum = 0x1301 ; msrnum = 0x1301 ;
msr = rdmsr(msrnum); msr = rdmsr(msrnum);
msr.lo |= 0x08; msr.lo |= 0x08;
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
/* */ /* Enable BTB */
/* Enable BTB*/ /* I hate to put this check here but it doesn't really work in cpubug.asm */
/* */
/* I hate to put this check here but it doesn't really work in cpubug.asm*/
msrnum = MSR_GLCP+0x17; msrnum = MSR_GLCP+0x17;
msr = rdmsr(msrnum); msr = rdmsr(msrnum);
if (msr.lo >= CPU_REV_2_1){ if (msr.lo >= CPU_REV_2_1){
@@ -138,10 +124,8 @@ void cpuRegInit (void)
wrmsr(msrnum, msr); wrmsr(msrnum, msr);
} }
/* */ /* FPU impercise exceptions bit */
/* FPU impercise exceptions bit*/ /* if (getnvram( TOKEN_FPU_IE_ENABLE) != TVALUE_DISABLE) { */
/* */
/*if (getnvram( TOKEN_FPU_IE_ENABLE) != TVALUE_DISABLE) {*/
{ {
msrnum = CPU_FPU_MSR_MODE; msrnum = CPU_FPU_MSR_MODE;
msr = rdmsr(msrnum); msr = rdmsr(msrnum);
@@ -150,16 +134,13 @@ void cpuRegInit (void)
} }
#if 0 #if 0
/* */ /* Cache Overides */
/* Cache Overides*/
/* */
/* This code disables the data cache. Don't execute this /* This code disables the data cache. Don't execute this
* unless you're testing something. * unless you're testing something.
*/ */
/* Allow NVRam to override DM Setup*/ /* Allow NVRam to override DM Setup */
/*if (getnvram( TOKEN_CACHE_DM_MODE) != 1) {*/ /* if (getnvram( TOKEN_CACHE_DM_MODE) != 1) { */
{ {
msrnum = CPU_DM_CONFIG0; msrnum = CPU_DM_CONFIG0;
msr = rdmsr(msrnum); msr = rdmsr(msrnum);
msr.lo |= DM_CONFIG0_LOWER_DCDIS_SET; msr.lo |= DM_CONFIG0_LOWER_DCDIS_SET;
@@ -168,8 +149,8 @@ void cpuRegInit (void)
/* This code disables the instruction cache. Don't execute /* This code disables the instruction cache. Don't execute
* this unless you're testing something. * this unless you're testing something.
*/ */
/* Allow NVRam to override IM Setup*/ /* Allow NVRam to override IM Setup */
/*if (getnvram( TOKEN_CACHE_IM_MODE) ==1) {*/ /* if (getnvram( TOKEN_CACHE_IM_MODE) ==1) { */
{ {
msrnum = CPU_IM_CONFIG; msrnum = CPU_IM_CONFIG;
msr = rdmsr(msrnum); msr = rdmsr(msrnum);