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Diffstat (limited to 'board/amcc/yellowstone/yellowstone.c')
-rw-r--r--board/amcc/yellowstone/yellowstone.c273
1 files changed, 202 insertions, 71 deletions
diff --git a/board/amcc/yellowstone/yellowstone.c b/board/amcc/yellowstone/yellowstone.c
index a6b81e600..8ddf910c8 100644
--- a/board/amcc/yellowstone/yellowstone.c
+++ b/board/amcc/yellowstone/yellowstone.c
@@ -20,9 +20,12 @@
*/
#include <common.h>
+#include <ppc4xx.h>
#include <asm/processor.h>
#include <spd_sdram.h>
+extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
int board_early_init_f(void)
{
register uint reg;
@@ -35,7 +38,7 @@ int board_early_init_f(void)
mtdcr(ebccfgd, reg | 0x04000000); /* Set ATC */
mtebc(pb0ap, 0x03017300); /* FLASH/SRAM */
- mtebc(pb0cr, 0xfe0ba000); /* BAS=0xfe0 32MB r/w 16-bit */
+ mtebc(pb0cr, 0xfc0da000); /* BAS=0xfc0 64MB r/w 16-bit */
mtebc(pb1ap, 0x00000000);
mtebc(pb1cr, 0x00000000);
@@ -53,32 +56,13 @@ int board_early_init_f(void)
mtebc(pb5cr, 0x00000000);
/*--------------------------------------------------------------------
- * Setup the interrupt controller polarities, triggers, etc.
- *-------------------------------------------------------------------*/
- mtdcr(uic0sr, 0xffffffff); /* clear all */
- mtdcr(uic0er, 0x00000000); /* disable all */
- mtdcr(uic0cr, 0x00000009); /* ATI & UIC1 crit are critical */
- mtdcr(uic0pr, 0xfffffe13); /* per ref-board manual */
- mtdcr(uic0tr, 0x01c00008); /* per ref-board manual */
- mtdcr(uic0vr, 0x00000001); /* int31 highest, base=0x000 */
- mtdcr(uic0sr, 0xffffffff); /* clear all */
-
- mtdcr(uic1sr, 0xffffffff); /* clear all */
- mtdcr(uic1er, 0x00000000); /* disable all */
- mtdcr(uic1cr, 0x00000000); /* all non-critical */
- mtdcr(uic1pr, 0xffffe0ff); /* per ref-board manual */
- mtdcr(uic1tr, 0x00ffc000); /* per ref-board manual */
- mtdcr(uic1vr, 0x00000001); /* int31 highest, base=0x000 */
- mtdcr(uic1sr, 0xffffffff); /* clear all */
-
- /*--------------------------------------------------------------------
* Setup the GPIO pins
*-------------------------------------------------------------------*/
/*CPLD cs */
- /*setup Address lines for flash sizes larger than 16Meg. */
- out32(GPIO0_OSRL, in32(GPIO0_OSRL) | 0x40010000);
- out32(GPIO0_TSRL, in32(GPIO0_TSRL) | 0x40010000);
- out32(GPIO0_ISR1L, in32(GPIO0_ISR1L) | 0x40000000);
+ /*setup Address lines for flash size 64Meg. */
+ out32(GPIO0_OSRL, in32(GPIO0_OSRL) | 0x50010000);
+ out32(GPIO0_TSRL, in32(GPIO0_TSRL) | 0x50010000);
+ out32(GPIO0_ISR1L, in32(GPIO0_ISR1L) | 0x50000000);
/*setup emac */
out32(GPIO0_TCR, in32(GPIO0_TCR) | 0xC080);
@@ -92,12 +76,38 @@ int board_early_init_f(void)
out32(GPIO1_OSRL, in32(GPIO1_OSRL) | 0x00080000);
out32(GPIO1_ISR2L, in32(GPIO1_ISR2L) | 0x00010000);
+ /* external interrupts IRQ0...3 */
+ out32(GPIO1_TCR, in32(GPIO1_TCR) & ~0x0f000000);
+ out32(GPIO1_TSRL, in32(GPIO1_TSRL) & ~0x00005500);
+ out32(GPIO1_ISR1L, in32(GPIO1_ISR1L) | 0x00005500);
+
+#if 0 /* test-only */
/*setup USB 2.0 */
out32(GPIO1_TCR, in32(GPIO1_TCR) | 0xc0000000);
out32(GPIO1_OSRL, in32(GPIO1_OSRL) | 0x50000000);
out32(GPIO0_TCR, in32(GPIO0_TCR) | 0xf);
out32(GPIO0_OSRH, in32(GPIO0_OSRH) | 0xaa);
out32(GPIO0_ISR2H, in32(GPIO0_ISR2H) | 0x00000500);
+#endif
+
+ /*--------------------------------------------------------------------
+ * Setup the interrupt controller polarities, triggers, etc.
+ *-------------------------------------------------------------------*/
+ mtdcr(uic0sr, 0xffffffff); /* clear all */
+ mtdcr(uic0er, 0x00000000); /* disable all */
+ mtdcr(uic0cr, 0x00000009); /* ATI & UIC1 crit are critical */
+ mtdcr(uic0pr, 0xfffffe13); /* per ref-board manual */
+ mtdcr(uic0tr, 0x01c00008); /* per ref-board manual */
+ mtdcr(uic0vr, 0x00000001); /* int31 highest, base=0x000 */
+ mtdcr(uic0sr, 0xffffffff); /* clear all */
+
+ mtdcr(uic1sr, 0xffffffff); /* clear all */
+ mtdcr(uic1er, 0x00000000); /* disable all */
+ mtdcr(uic1cr, 0x00000000); /* all non-critical */
+ mtdcr(uic1pr, 0xffffe0ff); /* per ref-board manual */
+ mtdcr(uic1tr, 0x00ffc000); /* per ref-board manual */
+ mtdcr(uic1vr, 0x00000001); /* int31 highest, base=0x000 */
+ mtdcr(uic1sr, 0xffffffff); /* clear all */
/*--------------------------------------------------------------------
* Setup other serial configuration
@@ -113,28 +123,80 @@ int board_early_init_f(void)
/*enable ethernet */
*(unsigned char *)(CFG_BCSR_BASE | 0x08) = 0xf0;
+#if 0 /* test-only */
/*enable usb 1.1 fs device and remove usb 2.0 reset */
*(unsigned char *)(CFG_BCSR_BASE | 0x09) = 0x00;
+#endif
/*get rid of flash write protect */
- *(unsigned char *)(CFG_BCSR_BASE | 0x07) = 0x40;
+ *(unsigned char *)(CFG_BCSR_BASE | 0x07) = 0x00;
+
+ return 0;
+}
+
+int misc_init_r (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+ uint pbcr;
+ int size_val = 0;
+
+ /* Re-do sizing to get full correct info */
+ mtdcr(ebccfga, pb0cr);
+ pbcr = mfdcr(ebccfgd);
+ switch (gd->bd->bi_flashsize) {
+ case 1 << 20:
+ size_val = 0;
+ break;
+ case 2 << 20:
+ size_val = 1;
+ break;
+ case 4 << 20:
+ size_val = 2;
+ break;
+ case 8 << 20:
+ size_val = 3;
+ break;
+ case 16 << 20:
+ size_val = 4;
+ break;
+ case 32 << 20:
+ size_val = 5;
+ break;
+ case 64 << 20:
+ size_val = 6;
+ break;
+ case 128 << 20:
+ size_val = 7;
+ break;
+ }
+ pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
+ mtdcr(ebccfga, pb0cr);
+ mtdcr(ebccfgd, pbcr);
+
+ /* adjust flash start and offset */
+ gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
+ gd->bd->bi_flashoffset = 0;
+
+ /* Monitor protection ON by default */
+ (void)flash_protect(FLAG_PROTECT_SET,
+ -CFG_MONITOR_LEN,
+ 0xffffffff,
+ &flash_info[0]);
return 0;
}
int checkboard(void)
{
- sys_info_t sysinfo;
+ char *s = getenv("serial#");
- get_sys_info(&sysinfo);
+ printf("Board: Yellowstone - AMCC PPC440GR Evaluation Board");
+ if (s != NULL) {
+ puts(", serial# ");
+ puts(s);
+ }
+ putc('\n');
- printf("Board: AMCC YELLOWSTONE\n");
- printf("\tVCO: %lu MHz\n", sysinfo.freqVCOMhz / 1000000);
- printf("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000);
- printf("\tPLB: %lu MHz\n", sysinfo.freqPLB / 1000000);
- printf("\tOPB: %lu MHz\n", sysinfo.freqOPB / 1000000);
- printf("\tPER: %lu MHz\n", sysinfo.freqEPB / 1000000);
- printf("\tPCI: %lu MHz\n", sysinfo.freqPCI / 1000000);
return (0);
}
@@ -145,9 +207,85 @@ int checkboard(void)
* PLB @ 133 MHz
*
************************************************************************/
+#define NUM_TRIES 64
+#define NUM_READS 10
+
+void sdram_tr1_set(int ram_address, int* tr1_value)
+{
+ int i;
+ int j, k;
+ volatile unsigned int* ram_pointer = (unsigned int*)ram_address;
+ int first_good = -1, last_bad = 0x1ff;
+
+ unsigned long test[NUM_TRIES] = {
+ 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
+ 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
+ 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
+ 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
+ 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
+ 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
+ 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
+ 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
+ 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
+ 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
+ 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
+ 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55,
+ 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55 };
+
+ /* go through all possible SDRAM0_TR1[RDCT] values */
+ for (i=0; i<=0x1ff; i++) {
+ /* set the current value for TR1 */
+ mtsdram(mem_tr1, (0x80800800 | i));
+
+ /* write values */
+ for (j=0; j<NUM_TRIES; j++) {
+ ram_pointer[j] = test[j];
+
+ /* clear any cache at ram location */
+ __asm__("dcbf 0,%0": :"r" (&ram_pointer[j]));
+ }
+
+ /* read values back */
+ for (j=0; j<NUM_TRIES; j++) {
+ for (k=0; k<NUM_READS; k++) {
+ /* clear any cache at ram location */
+ __asm__("dcbf 0,%0": :"r" (&ram_pointer[j]));
+
+ if (ram_pointer[j] != test[j])
+ break;
+ }
+
+ /* read error */
+ if (k != NUM_READS) {
+ break;
+ }
+ }
+
+ /* we have a SDRAM0_TR1[RDCT] that is part of the window */
+ if (j == NUM_TRIES) {
+ if (first_good == -1)
+ first_good = i; /* found beginning of window */
+ } else { /* bad read */
+ /* if we have not had a good read then don't care */
+ if(first_good != -1) {
+ /* first failure after a good read */
+ last_bad = i-1;
+ break;
+ }
+ }
+ }
+
+ /* return the current value for TR1 */
+ *tr1_value = (first_good + last_bad) / 2;
+}
+
void sdram_init(void)
{
register uint reg;
+ int tr1_bank1, tr1_bank2;
/*--------------------------------------------------------------------
* Setup some default
@@ -159,7 +297,7 @@ void sdram_init(void)
mtsdram(mem_wddctr, 0x40000000); /* ?? */
/*clear this first, if the DDR is enabled by a debugger
- then you can not make changes. */
+ then you can not make changes. */
mtsdram(mem_cfg0, 0x00000000); /* Disable EEC */
/*--------------------------------------------------------------------
@@ -170,8 +308,8 @@ void sdram_init(void)
*/
mtsdram(mem_b0cr, 0x000a4001); /* SDBA=0x000 128MB, Mode 3, enabled */
mtsdram(mem_b1cr, 0x080a4001); /* SDBA=0x080 128MB, Mode 3, enabled */
+
mtsdram(mem_tr0, 0x410a4012); /* ?? */
- mtsdram(mem_tr1, 0x8080080b); /* ?? */
mtsdram(mem_rtr, 0x04080000); /* ?? */
mtsdram(mem_cfg1, 0x00000000); /* Self-refresh exit, disable PM */
mtsdram(mem_cfg0, 0x34000000); /* Disable EEC */
@@ -187,6 +325,10 @@ void sdram_init(void)
if (reg & 0x80000000)
break;
}
+
+ sdram_tr1_set(0x00000000, &tr1_bank1);
+ sdram_tr1_set(0x08000000, &tr1_bank2);
+ mtsdram(mem_tr1, (((tr1_bank1+tr1_bank2)/2) | 0x80800800) );
}
/*************************************************************************
@@ -252,41 +394,29 @@ int testdram(void)
#if defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT)
int pci_pre_init(struct pci_controller *hose)
{
- unsigned long strap;
unsigned long addr;
- /*--------------------------------------------------------------------------+
- * Bamboo is always configured as the host & requires the
- * PCI arbiter to be enabled.
- *--------------------------------------------------------------------------*/
- mfsdr(sdr_sdstp1, strap);
- if ((strap & SDR0_SDSTP1_PAE_MASK) == 0) {
- printf("PCI: SDR0_STRP1[PAE] not set.\n");
- printf("PCI: Configuration aborted.\n");
- return 0;
- }
-
- /*-------------------------------------------------------------------------+
- | Set priority for all PLB3 devices to 0.
- | Set PLB3 arbiter to fair mode.
- +-------------------------------------------------------------------------*/
+ /*-------------------------------------------------------------------------+
+ | Set priority for all PLB3 devices to 0.
+ | Set PLB3 arbiter to fair mode.
+ +-------------------------------------------------------------------------*/
mfsdr(sdr_amp1, addr);
mtsdr(sdr_amp1, (addr & 0x000000FF) | 0x0000FF00);
addr = mfdcr(plb3_acr);
mtdcr(plb3_acr, addr | 0x80000000);
- /*-------------------------------------------------------------------------+
- | Set priority for all PLB4 devices to 0.
- +-------------------------------------------------------------------------*/
+ /*-------------------------------------------------------------------------+
+ | Set priority for all PLB4 devices to 0.
+ +-------------------------------------------------------------------------*/
mfsdr(sdr_amp0, addr);
mtsdr(sdr_amp0, (addr & 0x000000FF) | 0x0000FF00);
addr = mfdcr(plb4_acr) | 0xa0000000; /* Was 0x8---- */
mtdcr(plb4_acr, addr);
- /*-------------------------------------------------------------------------+
- | Set Nebula PLB4 arbiter to fair mode.
- +-------------------------------------------------------------------------*/
- /* Segment0 */
+ /*-------------------------------------------------------------------------+
+ | Set Nebula PLB4 arbiter to fair mode.
+ +-------------------------------------------------------------------------*/
+ /* Segment0 */
addr = (mfdcr(plb0_acr) & ~plb0_acr_ppm_mask) | plb0_acr_ppm_fair;
addr = (addr & ~plb0_acr_hbu_mask) | plb0_acr_hbu_enabled;
addr = (addr & ~plb0_acr_rdp_mask) | plb0_acr_rdp_4deep;
@@ -318,13 +448,13 @@ void pci_target_init(struct pci_controller *hose)
/*--------------------------------------------------------------------------+
* Set up Direct MMIO registers
*--------------------------------------------------------------------------*/
- /*--------------------------------------------------------------------------+
- | PowerPC440 EP PCI Master configuration.
- | Map one 1Gig range of PLB/processor addresses to PCI memory space.
- | PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF
- | Use byte reversed out routines to handle endianess.
- | Make this region non-prefetchable.
- +--------------------------------------------------------------------------*/
+ /*--------------------------------------------------------------------------+
+ | PowerPC440 EP PCI Master configuration.
+ | Map one 1Gig range of PLB/processor addresses to PCI memory space.
+ | PLB address 0xA0000000-0xDFFFFFFF ==> PCI address 0xA0000000-0xDFFFFFFF
+ | Use byte reversed out routines to handle endianess.
+ | Make this region non-prefetchable.
+ +--------------------------------------------------------------------------*/
out32r(PCIX0_PMM0MA, 0x00000000); /* PMM0 Mask/Attribute - disabled b4 setting */
out32r(PCIX0_PMM0LA, CFG_PCI_MEMBASE); /* PMM0 Local Address */
out32r(PCIX0_PMM0PCILA, CFG_PCI_MEMBASE); /* PMM0 PCI Low Address */
@@ -374,11 +504,11 @@ void pci_master_init(struct pci_controller *hose)
{
unsigned short temp_short;
- /*--------------------------------------------------------------------------+
- | Write the PowerPC440 EP PCI Configuration regs.
- | Enable PowerPC440 EP to be a master on the PCI bus (PMM).
- | Enable PowerPC440 EP to act as a PCI memory target (PTM).
- +--------------------------------------------------------------------------*/
+ /*--------------------------------------------------------------------------+
+ | Write the PowerPC440 EP PCI Configuration regs.
+ | Enable PowerPC440 EP to be a master on the PCI bus (PMM).
+ | Enable PowerPC440 EP to act as a PCI memory target (PTM).
+ +--------------------------------------------------------------------------*/
pci_read_config_word(0, PCI_COMMAND, &temp_short);
pci_write_config_word(0, PCI_COMMAND,
temp_short | PCI_COMMAND_MASTER |
@@ -418,5 +548,6 @@ int is_pci_host(struct pci_controller *hose)
#if defined(CONFIG_HW_WATCHDOG)
void hw_watchdog_reset(void)
{
+
}
#endif
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