Commit b867d705 authored by stroese's avatar stroese
Browse files

PPC405EP support added.

parent bedc4970
......@@ -75,10 +75,10 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
print_num ("immr_base", bd->bi_immr_base );
#endif
print_num ("bootflags", bd->bi_bootflags );
#if defined(CONFIG_405GP) || defined(CONFIG_405CR)
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405EP)
print_str ("procfreq", strmhz(buf, bd->bi_procfreq));
print_str ("plb_busfreq", strmhz(buf, bd->bi_plb_busfreq));
#if defined(CONFIG_405GP)
#if defined(CONFIG_405GP) || defined(CONFIG_405EP)
print_str ("pci_busfreq", strmhz(buf, bd->bi_pci_busfreq));
#endif
#else
......
......@@ -90,7 +90,7 @@ int do_reginfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
*/
/* DBU[dave@cray.com] For the CRAY-L1, but should be generically 405gp */
#elif defined (CONFIG_405GP)
#elif defined (CONFIG_405GP) || defined(CONFIG_405EP)
printf("\n405GP registers; MSR=%x\n",mfmsr());
printf ("\nUniversal Interrupt Controller Regs\n"
"uicsr uicsrs uicer uiccr uicpr uictr uicmsr uicvr uicvcr"
......
......@@ -80,7 +80,7 @@
#include <malloc.h>
#include "vecnum.h"
#if defined(CONFIG_405GP) || defined(CONFIG_440)
#if defined(CONFIG_405GP) || defined(CONFIG_440) || defined(CONFIG_405EP)
#define EMAC_RESET_TIMEOUT 1000 /* 1000 ms reset timeout */
#define PHY_AUTONEGOTIATE_TIMEOUT 2000 /* 2000 ms autonegotiate timeout */
......@@ -705,7 +705,7 @@ void mal_err (unsigned long isr, unsigned long uic, unsigned long maldef,
mtdcr (maltxdeir, 0xC0000000);
mtdcr (malrxdeir, 0x80000000);
#if 1 /*sr */
#ifdef INFO_405_ENET
printf ("\nMAL error occured.... ISR = %lx UIC = = %lx MAL_DEF = %lx MAL_ERR= %lx \n",
isr, uic, maldef, mal_errr);
#else
......@@ -716,7 +716,7 @@ void mal_err (unsigned long isr, unsigned long uic, unsigned long maldef,
*/
printf ("M"); /* just to see something upon mal error */
#endif
#endif /*sr */
#endif
eth_init (bis_save); /* start again... */
}
......
......@@ -78,7 +78,7 @@
#include <asm/processor.h>
#include <pci.h>
#if defined(CONFIG_405GP)
#if defined(CONFIG_405GP) || defined(CONFIG_405EP)
#ifdef CONFIG_PCI
......
......@@ -48,17 +48,24 @@ static int do_chip_reset( unsigned long sys0, unsigned long sys1 );
int checkcpu (void)
{
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_IOP480) || defined(CONFIG_440)
#if defined(CONFIG_405GP) || \
defined(CONFIG_405CR) || \
defined(CONFIG_IOP480) || \
defined(CONFIG_440) || \
defined(CONFIG_405EP)
uint pvr = get_pvr();
#endif
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_IOP480)
#if defined(CONFIG_405GP) || \
defined(CONFIG_405CR) || \
defined(CONFIG_IOP480) || \
defined(CONFIG_405EP)
DECLARE_GLOBAL_DATA_PTR;
ulong clock = gd->cpu_clk;
char buf[32];
#endif
#if defined(CONFIG_405GP) || defined(CONFIG_405CR)
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405EP)
PPC405_SYS_INFO sys_info;
puts ("CPU: ");
......@@ -74,6 +81,9 @@ int checkcpu (void)
#endif
#if CONFIG_405CR
puts("IBM PowerPC 405CR Rev. ");
#endif
#if CONFIG_405EP
puts("IBM PowerPC 405EP Rev. ");
#endif
switch (pvr) {
case PVR_405GP_RB:
......@@ -98,6 +108,7 @@ int checkcpu (void)
putc('A');
break;
case PVR_405CR_RB:
case PVR_405EP_RB:
putc('B');
break;
default:
......@@ -110,7 +121,7 @@ int checkcpu (void)
sys_info.freqPLB / sys_info.pllOpbDiv / 1000000,
sys_info.freqPLB / sys_info.pllExtBusDiv / 1000000);
#if CONFIG_405GP
#if defined(CONFIG_405GP)
if (mfdcr(strap) & PSR_PCI_ASYNC_EN)
printf(" PCI async ext clock used, ");
else
......@@ -120,15 +131,27 @@ int checkcpu (void)
printf("internal PCI arbiter enabled\n");
else
printf("external PCI arbiter enabled\n");
#elif defined(CONFIG_405EP)
if (mfdcr(cpc0_boot) & CPC0_BOOT_SEP)
printf(" IIC Boot EEPROM enabled\n");
else
printf(" IIC Boot EEPROM disabled\n");
printf(" PCI async ext clock used, ");
if (mfdcr(cpc0_pci) & CPC0_PCI_ARBIT_EN)
printf("internal PCI arbiter enabled\n");
else
printf("external PCI arbiter enabled\n");
#endif
#if defined(CONFIG_405EP)
printf(" 16 kB I-Cache 16 kB D-Cache");
#else
if ((pvr | 0x00000001) == PVR_405GPR_RB) {
printf(" 16 kB I-Cache 16 kB D-Cache");
} else {
printf(" 16 kB I-Cache 8 kB D-Cache");
}
#endif
#endif /* defined(CONFIG_405GP) || defined(CONFIG_405CR) */
#ifdef CONFIG_IOP480
......@@ -213,7 +236,10 @@ unsigned long get_tbclk (void)
get_sys_info(&sys_info);
return (sys_info.freqProcessor);
#elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405)
#elif defined(CONFIG_405GP) || \
defined(CONFIG_405CR) || \
defined(CONFIG_405) || \
defined(CONFIG_405EP)
PPC405_SYS_INFO sys_info;
......
......@@ -40,6 +40,24 @@
void
cpu_init_f (void)
{
#if defined(CONFIG_405EP)
/*
* GPIO0 setup (select GPIO or alternate function)
*/
out32(GPIO0_OSRH, CFG_GPIO0_OSRH); /* output select */
out32(GPIO0_OSRL, CFG_GPIO0_OSRL);
out32(GPIO0_ISR1H, CFG_GPIO0_ISR1H); /* input select */
out32(GPIO0_ISR1L, CFG_GPIO0_ISR1L);
out32(GPIO0_TSRH, CFG_GPIO0_TSRH); /* three-state select */
out32(GPIO0_TSRL, CFG_GPIO0_TSRL);
out32(GPIO0_TCR, CFG_GPIO0_TCR); /* enable output driver for outputs */
/*
* Set EMAC noise filter bits
*/
mtdcr(cpc0_epctl, CPC0_EPRCSR_E0NFE | CPC0_EPRCSR_E1NFE);
#endif /* CONFIG_405EP */
/*
* External Bus Controller (EBC) Setup
*/
......@@ -119,12 +137,14 @@ cpu_init_f (void)
*/
int cpu_init_r (void)
{
#ifdef CONFIG_405GP
#if defined(CONFIG_405GP) || defined(CONFIG_405EP)
DECLARE_GLOBAL_DATA_PTR;
bd_t *bd = gd->bd;
unsigned long reg;
#if defined(CONFIG_405GP)
uint pvr = get_pvr();
#endif
/*
* Write Ethernetaddress into on-chip register
......@@ -145,6 +165,7 @@ int cpu_init_r (void)
reg |= bd->bi_enetaddr[5];
out32 (EMAC_IAL, reg);
#if defined(CONFIG_405GP)
/*
* Set edge conditioning circuitry on PPC405GPr
* for compatibility to existing PPC405GP designs.
......@@ -152,7 +173,7 @@ int cpu_init_r (void)
if ((pvr & 0xfffffff0) == (PVR_405GPR_RB & 0xfffffff0)) {
mtdcr(ecr, 0x60606000);
}
#endif /* CONFIG_405GP */
#endif /* defined(CONFIG_405GP) */
#endif /* defined(CONFIG_405GP) || defined(CONFIG_405EP) */
return (0);
}
......@@ -48,7 +48,7 @@
#include <405_mal.h>
#include <miiphy.h>
#if defined(CONFIG_405GP) || defined(CONFIG_440)
#if defined(CONFIG_405GP) || defined(CONFIG_440) || defined(CONFIG_405EP)
/***********************************************************/
......
......@@ -118,9 +118,11 @@ long int spd_sdram(int(read_spd)(uint addr))
int bank_cnt;
int sdram0_pmit=0x07c00000;
#ifndef CONFIG_405EP /* not on PPC405EP */
int sdram0_besr0=-1;
int sdram0_besr1=-1;
int sdram0_eccesr=-1;
#endif
int sdram0_ecccfg;
int sdram0_rtr=0;
......@@ -153,8 +155,46 @@ long int spd_sdram(int(read_spd)(uint addr))
* Calculate the bus period, we do it this
* way to minimize stack utilization.
*/
#ifndef CONFIG_405EP
tmp = (mfdcr(pllmd) >> (31-6)) & 0xf; /* get FBDV bits */
tmp = CONFIG_SYS_CLK_FREQ * tmp; /* get plb freq */
#else
{
unsigned long freqCPU;
unsigned long pllmr0;
unsigned long pllmr1;
unsigned long pllFbkDiv;
unsigned long pllPlbDiv;
unsigned long pllmr0_ccdv;
/*
* Read PLL Mode registers
*/
pllmr0 = mfdcr (cpc0_pllmr0);
pllmr1 = mfdcr (cpc0_pllmr1);
pllFbkDiv = ((pllmr1 & PLLMR1_FBMUL_MASK) >> 20);
if (pllFbkDiv == 0) {
pllFbkDiv = 16;
}
pllPlbDiv = ((pllmr0 & PLLMR0_CPU_TO_PLB_MASK) >> 16) + 1;
/*
* Determine CPU clock frequency
*/
pllmr0_ccdv = ((pllmr0 & PLLMR0_CPU_DIV_MASK) >> 20) + 1;
if (pllmr1 & PLLMR1_SSCS_MASK) {
freqCPU = (CONFIG_SYS_CLK_FREQ * pllFbkDiv) / pllmr0_ccdv;
} else {
freqCPU = CONFIG_SYS_CLK_FREQ / pllmr0_ccdv;
}
/*
* Determine PLB clock frequency
*/
tmp = freqCPU / pllPlbDiv;
}
#endif
bus_period = sdram_HZ_to_ns(tmp); /* get sdram speed */
/* Make shure we are using SDRAM */
......@@ -414,8 +454,12 @@ long int spd_sdram(int(read_spd)(uint addr))
sdram0_cfg = 0;
mtsdram0( mem_mcopt1, sdram0_cfg );
#ifndef CONFIG_405EP /* not on PPC405EP */
mtsdram0( mem_besra , sdram0_besr0 );
mtsdram0( mem_besrb , sdram0_besr1 );
mtsdram0( mem_ecccf , sdram0_ecccfg );
mtsdram0( mem_eccerr, sdram0_eccesr );
#endif
mtsdram0( mem_rtr , sdram0_rtr );
mtsdram0( mem_pmit , sdram0_pmit );
mtsdram0( mem_mb0cf , sdram0_b0cr );
......@@ -423,8 +467,6 @@ long int spd_sdram(int(read_spd)(uint addr))
mtsdram0( mem_mb2cf , sdram0_b2cr );
mtsdram0( mem_mb3cf , sdram0_b3cr );
mtsdram0( mem_sdtr1 , sdram0_tr );
mtsdram0( mem_ecccf , sdram0_ecccfg );
mtsdram0( mem_eccerr, sdram0_eccesr );
/* SDRAM have a power on delay, 500 micro should do */
udelay(500);
......
......@@ -257,11 +257,132 @@ void get_sys_info (sys_info_t * sysInfo) {
}
#elif defined(CONFIG_405EP)
void get_sys_info (PPC405_SYS_INFO * sysInfo)
{
unsigned long pllmr0;
unsigned long pllmr1;
unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ / 1000);
unsigned long m;
unsigned long pllmr0_ccdv;
/*
* Read PLL Mode registers
*/
pllmr0 = mfdcr (cpc0_pllmr0);
pllmr1 = mfdcr (cpc0_pllmr1);
/*
* Determine forward divider A
*/
sysInfo->pllFwdDiv = 8 - ((pllmr1 & PLLMR1_FWDVA_MASK) >> 16);
/*
* Determine forward divider B (should be equal to A)
*/
sysInfo->pllFwdDivB = 8 - ((pllmr1 & PLLMR1_FWDVB_MASK) >> 12);
/*
* Determine FBK_DIV.
*/
sysInfo->pllFbkDiv = ((pllmr1 & PLLMR1_FBMUL_MASK) >> 20);
if (sysInfo->pllFbkDiv == 0) {
sysInfo->pllFbkDiv = 16;
}
/*
* Determine PLB_DIV.
*/
sysInfo->pllPlbDiv = ((pllmr0 & PLLMR0_CPU_TO_PLB_MASK) >> 16) + 1;
/*
* Determine PCI_DIV.
*/
sysInfo->pllPciDiv = (pllmr0 & PLLMR0_PCI_TO_PLB_MASK) + 1;
/*
* Determine EXTBUS_DIV.
*/
sysInfo->pllExtBusDiv = ((pllmr0 & PLLMR0_EXB_TO_PLB_MASK) >> 8) + 2;
/*
* Determine OPB_DIV.
*/
sysInfo->pllOpbDiv = ((pllmr0 & PLLMR0_OPB_TO_PLB_MASK) >> 12) + 1;
/*
* Determine the M factor
*/
m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivB;
/*
* Determine VCO clock frequency
*/
sysInfo->freqVCOMhz = (1000000 * m) / sysClkPeriodPs;
/*
* Determine CPU clock frequency
*/
pllmr0_ccdv = ((pllmr0 & PLLMR0_CPU_DIV_MASK) >> 20) + 1;
if (pllmr1 & PLLMR1_SSCS_MASK) {
sysInfo->freqProcessor = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv)
/ pllmr0_ccdv;
} else {
sysInfo->freqProcessor = CONFIG_SYS_CLK_FREQ / pllmr0_ccdv;
}
/*
* Determine PLB clock frequency
*/
sysInfo->freqPLB = sysInfo->freqProcessor / sysInfo->pllPlbDiv;
if (!((sysInfo->freqVCOMhz >= VCO_MIN) && (sysInfo->freqVCOMhz <= VCO_MAX))) {
printf ("\nInvalid VCO frequency calculated : %ld MHz \a\n",
sysInfo->freqVCOMhz);
printf ("It must be between %d-%d MHz \a\n", VCO_MIN, VCO_MAX);
printf ("PLL Mode reg 0 : %8.8lx\a\n", pllmr0);
printf ("PLL Mode reg 1 : %8.8lx\a\n", pllmr1);
hang ();
}
}
/********************************************
* get_OPB_freq
* return OPB bus freq in Hz
*********************************************/
ulong get_OPB_freq (void)
{
ulong val = 0;
PPC405_SYS_INFO sys_info;
get_sys_info (&sys_info);
val = sys_info.freqPLB / sys_info.pllOpbDiv;
return val;
}
/********************************************
* get_PCI_freq
* return PCI bus freq in Hz
*********************************************/
ulong get_PCI_freq (void)
{
ulong val;
PPC405_SYS_INFO sys_info;
get_sys_info (&sys_info);
val = sys_info.freqPLB / sys_info.pllPciDiv;
return val;
}
#endif
int get_clocks (void)
{
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) || defined(CONFIG_405)
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) || defined(CONFIG_405) || defined(CONFIG_405EP)
DECLARE_GLOBAL_DATA_PTR;
sys_info_t sys_info;
......@@ -290,7 +411,7 @@ ulong get_bus_freq (ulong dummy)
{
ulong val;
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405) || defined(CONFIG_440)
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405) || defined(CONFIG_440) || defined(CONFIG_405EP)
sys_info_t sys_info;
get_sys_info (&sys_info);
......
......@@ -297,7 +297,7 @@ _start_440:
mflr r1
mtspr srr0,r1
rfi
#endif
#endif /* CONFIG_440 */
/*
* r3 - 1st arg to board_init(): IMMP pointer
......@@ -504,7 +504,7 @@ _start:
#endif /* CONFIG_IOP480 */
/*****************************************************************************/
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405)
#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405) || defined(CONFIG_405EP)
/*----------------------------------------------------------------------- */
/* Clear and set up some registers. */
/*----------------------------------------------------------------------- */
......@@ -551,6 +551,17 @@ _start:
bl ext_bus_cntlr_init
#endif
#if defined(CONFIG_405EP)
/*----------------------------------------------------------------------- */
/* DMA Status, clear to come up clean */
/*----------------------------------------------------------------------- */
addis r3,r0, 0xFFFF /* Clear all existing DMA status */
ori r3,r3, 0xFFFF
mtdcr dmasr, r3
bl ppc405ep_init /* do ppc405ep specific init */
#endif /* CONFIG_405EP */
#if defined(CFG_OCM_DATA_ADDR) && defined(CFG_OCM_DATA_SIZE)
/********************************************************************
* Setup OCM - On Chip Memory
......@@ -693,6 +704,7 @@ _start:
#endif /* CONFIG_405GP || CONFIG_405CR */
/*****************************************************************************/
.globl _start_of_vectors
_start_of_vectors:
......@@ -1437,3 +1449,164 @@ trap_reloc:
stw r0, 4(r7)
blr
/**************************************************************************/
/* PPC405EP specific stuff */
/**************************************************************************/
#ifdef CONFIG_405EP
ppc405ep_init:
/*
!-----------------------------------------------------------------------
! Check FPGA for PCI internal/external arbitration
! If board is set to internal arbitration, update cpc0_pci
!-----------------------------------------------------------------------
*/
addi r3,0,CPC0_PCI_HOST_CFG_EN
#ifdef CONFIG_BUBINGA405EP
addis r5,r0,FPGA_REG1@h /* set offset for FPGA_REG1 */
ori r5,r5,FPGA_REG1@l
lbz r5,0x0(r5) /* read to get PCI arb selection */
andi. r6,r5,FPGA_REG1_PCI_INT_ARB /* using internal arbiter ?*/
beq ..pci_cfg_set /* if not set, then bypass reg write*/
#endif
ori r3,r3,CPC0_PCI_ARBIT_EN
..pci_cfg_set:
mtdcr CPC0_PCI, r3 /* Enable internal arbiter*/
/*
!-----------------------------------------------------------------------
! Check to see if chip is in bypass mode.
! If so, write stored CPC0_PLLMR0 and CPC0_PLLMR1 values and perform a
! CPU reset Otherwise, skip this step and keep going.
! Note: Running BIOS in bypass mode is not supported since PLB speed
! will not be fast enough for the SDRAM (min 66MHz)
!-----------------------------------------------------------------------
*/
mfdcr r5, CPC0_PLLMR1
rlwinm r4,r5,1,0x1 /* get system clock source (SSCS) */
cmpi cr0,0,r4,0x1
beq pll_done /* if SSCS =b'1' then PLL has */
/* already been set */
/* and CPU has been reset */
/* so skip to next section */
#ifdef CONFIG_BUBINGA405EP
/*
!-----------------------------------------------------------------------
! Read NVRAM to get value to write in PLLMR.
! If value has not been correctly saved, write default value
! Default config values (assuming on-board 33MHz SYS_CLK) are above.
! See CPU_DEFAULT_200 and CPU_DEFAULT_266 above.
!
! WARNING: This code assumes the first three words in the nvram_t
! structure in openbios.h. Changing the beginning of
! the structure will break this code.
!
!-----------------------------------------------------------------------
*/
addis r3,0,NVRAM_BASE@h
addi r3,r3,NVRAM_BASE@l
lwz r4, 0(r3)
addis r5,0,NVRVFY1@h
addi r5,r5,NVRVFY1@l
cmp cr0,0,r4,r5 /* Compare 1st NVRAM Magic number*/
bne ..no_pllset
addi r3,r3,4
lwz r4, 0(r3)
addis r5,0,NVRVFY2@h
addi r5,r5,NVRVFY2@l
cmp cr0,0,r4,r5 /* Compare 2 NVRAM Magic number */
bne ..no_pllset
addi r3,r3,8 /* Skip over conf_size */
lwz r4, 4(r3) /* Load PLLMR1 value from NVRAM */
lwz r3, 0(r3) /* Load PLLMR0 value from NVRAM */
rlwinm r5,r4,1,0x1 /* get system clock source (SSCS) */
cmpi cr0,0,r5,1 /* See if PLL is locked */
beq pll_write
..no_pllset:
#endif /* CONFIG_BUBINGA405EP */
addis r3,0,PLLMR0_DEFAULT@h /* PLLMR0 default value */
ori r3,r3,PLLMR0_DEFAULT@l /* */
addis r4,0,PLLMR1_DEFAULT@h /* PLLMR1 default value */
ori r4,r4,PLLMR1_DEFAULT@l /* */
b pll_write /* Write the CPC0_PLLMR with new value */
pll_done:
/*
!-----------------------------------------------------------------------
! Clear Soft Reset Register
! This is needed to enable PCI if not booting from serial EPROM
!-----------------------------------------------------------------------
*/
addi r3, 0, 0x0
mtdcr CPC0_SRR, r3
addis r3,0,0x0010
mtctr r3
pci_wait:
bdnz pci_wait
blr /* return to main code */
/*
!-----------------------------------------------------------------------------
! Function: pll_write
! Description: Updates the value of the CPC0_PLLMR according to CMOS27E documentation
! That is:
! 1. Pll is first disabled (de-activated by putting in bypass mode)
! 2. PLL is reset
! 3. Clock dividers are set while PLL is held in reset and bypassed
! 4. PLL Reset is cleared
! 5. Wait 100us for PLL to lock
! 6. A core reset is performed
! Input: r3 = Value to write to CPC0_PLLMR0
! Input: r4 = Value to write to CPC0_PLLMR1
! Output r3 = none
!-----------------------------------------------------------------------------
*/
pll_write:
mfdcr r5, CPC0_UCR
andis. r5,r5,0xFFFF
ori r5,r5,0x0101 /* Stop the UART clocks */
mtdcr CPC0_UCR,r5 /* Before changing PLL */
mfdcr r5, CPC0_PLLMR1
rlwinm r5,r5,0,0x7FFFFFFF /* Disable PLL */
mtdcr CPC0_PLLMR1,r5
oris r5,r5,0x4000 /* Set PLL Reset */
mtdcr CPC0_PLLMR1,r5
mtdcr CPC0_PLLMR0,r3 /* Set clock dividers */
rlwinm r5,r4,0,0x3FFFFFFF /* Reset & Bypass new PLL dividers */
oris r5,r5,0x4000 /* Set PLL Reset */
mtdcr CPC0_PLLMR1,r5 /* Set clock dividers */