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Diffstat (limited to 'board/mpc8641hpcn/mpc8641hpcn.c')
-rw-r--r--board/mpc8641hpcn/mpc8641hpcn.c214
1 files changed, 140 insertions, 74 deletions
diff --git a/board/mpc8641hpcn/mpc8641hpcn.c b/board/mpc8641hpcn/mpc8641hpcn.c
index d02a7ef..c6b2a5b 100644
--- a/board/mpc8641hpcn/mpc8641hpcn.c
+++ b/board/mpc8641hpcn/mpc8641hpcn.c
@@ -1,6 +1,6 @@
/*
* Copyright 2004 Freescale Semiconductor.
- * Jeff Brown (jeffrey@freescale.com)
+ * Jeff Brown
* Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
*
* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
@@ -25,6 +25,7 @@
*/
#include <common.h>
+#include <command.h>
#include <pci.h>
#include <asm/processor.h>
#include <asm/immap_86xx.h>
@@ -35,20 +36,23 @@
extern void ft_cpu_setup(void *blob, bd_t *bd);
#endif
+#include "pixis.h"
+
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
extern void ddr_enable_ecc(unsigned int dram_size);
#endif
-extern long int spd_sdram(void);
+#if defined(CONFIG_SPD_EEPROM)
+#include "spd_sdram.h"
+#endif
-void local_bus_init(void);
void sdram_init(void);
long int fixed_sdram(void);
int board_early_init_f (void)
{
- return 0;
+ return 0;
}
int checkboard (void)
@@ -57,41 +61,34 @@ int checkboard (void)
#ifdef CONFIG_PCI
- volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
- volatile ccsr_gur_t *gur = &immap->im_gur;
- volatile ccsr_pex_t *pex1 = &immap->im_pex1;
-
- uint devdisr = gur->devdisr;
- uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16;
- uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17;
- uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
-
-
- if ((io_sel==2 || io_sel==3 || io_sel==5 \
- || io_sel==6 || io_sel==7 || io_sel==0xF)
- && !(devdisr & MPC86xx_DEVDISR_PCIEX1)){
- debug ("PCI-EXPRESS 1: %s \n",
- pex1_agent ? "Agent" : "Host");
- debug("0x%08x=0x%08x ", &pex1->pme_msg_det,pex1->pme_msg_det);
- if (pex1->pme_msg_det) {
- pex1->pme_msg_det = 0xffffffff;
- debug (" with errors. Clearing. Now 0x%08x",
- pex1->pme_msg_det);
- }
- debug ("\n");
- } else {
- printf ("PCI-EXPRESS 1: Disabled\n");
- }
+ volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
+ volatile ccsr_gur_t *gur = &immap->im_gur;
+ volatile ccsr_pex_t *pex1 = &immap->im_pex1;
+
+ uint devdisr = gur->devdisr;
+ uint io_sel = (gur->pordevsr & MPC86xx_PORDEVSR_IO_SEL) >> 16;
+ uint host1_agent = (gur->porbmsr & MPC86xx_PORBMSR_HA) >> 17;
+ uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
+
+ if ((io_sel == 2 || io_sel == 3 || io_sel == 5
+ || io_sel == 6 || io_sel == 7 || io_sel == 0xF)
+ && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
+ debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
+ debug("0x%08x=0x%08x ", &pex1->pme_msg_det, pex1->pme_msg_det);
+ if (pex1->pme_msg_det) {
+ pex1->pme_msg_det = 0xffffffff;
+ debug(" with errors. Clearing. Now 0x%08x",
+ pex1->pme_msg_det);
+ }
+ debug ("\n");
+ } else {
+ puts("PCI-EXPRESS 1: Disabled\n");
+ }
#else
- printf("PCI-EXPRESS1: Disabled\n");
+ puts("PCI-EXPRESS1: Disabled\n");
#endif
- /*
- * Initialize local bus.
- */
- local_bus_init();
-
return 0;
}
@@ -100,7 +97,6 @@ long int
initdram(int board_type)
{
long dram_size = 0;
- extern long spd_sdram (void);
#if defined(CONFIG_SPD_EEPROM)
dram_size = spd_sdram ();
@@ -112,7 +108,7 @@ initdram(int board_type)
puts(" DDR: ");
return dram_size;
#endif
-
+
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
/*
* Initialize and enable DDR ECC.
@@ -125,34 +121,6 @@ initdram(int board_type)
}
-/*
- * Initialize Local Bus
- */
-
-void
-local_bus_init(void)
-{
- volatile immap_t *immap = (immap_t *)CFG_IMMR;
- volatile ccsr_lbc_t *lbc = &immap->im_lbc;
-
- uint clkdiv;
- uint lbc_hz;
- sys_info_t sysinfo;
-
- /*
- * Errata LBC11.
- * Fix Local Bus clock glitch when DLL is enabled.
- *
- * If localbus freq is < 66Mhz, DLL bypass mode must be used.
- * If localbus freq is > 133Mhz, DLL can be safely enabled.
- * Between 66 and 133, the DLL is enabled with an override workaround.
- */
-
- get_sys_info(&sysinfo);
- clkdiv = lbc->lcrr & 0x0f;
- lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
-}
-
#if defined(CFG_DRAM_TEST)
int testdram(void)
{
@@ -160,7 +128,7 @@ int testdram(void)
uint *pend = (uint *) CFG_MEMTEST_END;
uint *p;
- printf("SDRAM test phase 1:\n");
+ puts("SDRAM test phase 1:\n");
for (p = pstart; p < pend; p++)
*p = 0xaaaaaaaa;
@@ -171,7 +139,7 @@ int testdram(void)
}
}
- printf("SDRAM test phase 2:\n");
+ puts("SDRAM test phase 2:\n");
for (p = pstart; p < pend; p++)
*p = 0x55555555;
@@ -182,7 +150,7 @@ int testdram(void)
}
}
- printf("SDRAM test passed.\n");
+ puts("SDRAM test passed.\n");
return 0;
}
#endif
@@ -207,9 +175,9 @@ long int fixed_sdram(void)
ddr->sdram_mode_1 = CFG_DDR_MODE_1;
ddr->sdram_mode_2 = CFG_DDR_MODE_2;
ddr->sdram_interval = CFG_DDR_INTERVAL;
- ddr->sdram_data_init = CFG_DDR_DATA_INIT;
+ ddr->sdram_data_init = CFG_DDR_DATA_INIT;
ddr->sdram_clk_cntl = CFG_DDR_CLK_CTRL;
- ddr->sdram_ocd_cntl = CFG_DDR_OCD_CTRL;
+ ddr->sdram_ocd_cntl = CFG_DDR_OCD_CTRL;
ddr->sdram_ocd_status = CFG_DDR_OCD_STATUS;
#if defined (CONFIG_DDR_ECC)
@@ -217,7 +185,7 @@ long int fixed_sdram(void)
ddr->err_sbe = 0x00ff0000;
#endif
asm("sync;isync");
-
+
udelay(500);
#if defined (CONFIG_DDR_ECC)
@@ -228,7 +196,7 @@ long int fixed_sdram(void)
ddr->sdram_cfg_2 = CFG_DDR_CONTROL2;
#endif
asm("sync; isync");
-
+
udelay(500);
#endif
return CFG_SDRAM_SIZE * 1024 * 1024;
@@ -281,15 +249,113 @@ ft_board_setup(void *blob, bd_t *bd)
int len;
ft_cpu_setup(blob, bd);
-
+
p = ft_get_prop(blob, "/memory/reg", &len);
if (p != NULL) {
*p++ = cpu_to_be32(bd->bi_memstart);
*p = cpu_to_be32(bd->bi_memsize);
}
-
}
#endif
+void
+mpc8641_reset_board(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ char cmd;
+ ulong val;
+ ulong corepll;
+ /*
+ * No args is a simple reset request.
+ */
+ if (argv <= 0) {
+ out8(PIXIS_BASE + PIXIS_RST, 0);
+ /* not reached */
+ }
+
+ cmd = argv[1][1];
+ switch (cmd) {
+ case 'f': /* reset with frequency changed */
+ if (argc < 5)
+ goto my_usage;
+ read_from_px_regs(0);
+
+ val = set_px_sysclk(simple_strtoul(argv[2], NULL, 10));
+
+ corepll = strfractoint(argv[3]);
+ val = val + set_px_corepll(corepll);
+ val = val + set_px_mpxpll(simple_strtoul(argv[4], NULL, 10));
+ if (val == 3) {
+ puts("Setting registers VCFGEN0 and VCTL\n");
+ read_from_px_regs(1);
+ puts("Resetting board with values from VSPEED0, VSPEED1, VCLKH, and VCLKL ....\n");
+ set_px_go();
+ } else
+ goto my_usage;
+
+ while (1); /* Not reached */
+
+ case 'l':
+ if (argv[2][1] == 'f') {
+ read_from_px_regs(0);
+ read_from_px_regs_altbank(0);
+ /* reset with frequency changed */
+ val = set_px_sysclk(simple_strtoul(argv[3], NULL, 10));
+
+ corepll = strfractoint(argv[4]);
+ val = val + set_px_corepll(corepll);
+ val = val + set_px_mpxpll(simple_strtoul(argv[5], NULL, 10));
+ if (val == 3) {
+ puts("Setting registers VCFGEN0, VCFGEN1, VBOOT, and VCTL\n");
+ set_altbank();
+ read_from_px_regs(1);
+ read_from_px_regs_altbank(1);
+ puts("Enabling watchdog timer on the FPGA and resetting board with values from VSPEED0, VSPEED1, VCLKH, and VCLKL to boot from the other bank ....\n");
+ set_px_go_with_watchdog();
+ } else
+ goto my_usage;
+
+ while(1); /* Not reached */
+
+ } else if(argv[2][1] == 'd'){
+ /*
+ * Reset from alternate bank without changing
+ * frequencies but with watchdog timer enabled.
+ */
+ read_from_px_regs(0);
+ read_from_px_regs_altbank(0);
+ puts("Setting registers VCFGEN1, VBOOT, and VCTL\n");
+ set_altbank();
+ read_from_px_regs_altbank(1);
+ puts("Enabling watchdog timer on the FPGA and resetting board to boot from the other bank....\n");
+ set_px_go_with_watchdog();
+ while(1); /* Not reached */
+
+ } else {
+ /*
+ * Reset from next bank without changing
+ * frequency and without watchdog timer enabled.
+ */
+ read_from_px_regs(0);
+ read_from_px_regs_altbank(0);
+ if(argc > 2)
+ goto my_usage;
+ puts("Setting registers VCFGNE1, VBOOT, and VCTL\n");
+ set_altbank();
+ read_from_px_regs_altbank(1);
+ puts("Resetting board to boot from the other bank....\n");
+ set_px_go();
+ }
+
+ default:
+ goto my_usage;
+ }
+
+my_usage:
+ puts("\nUsage: reset cf <SYSCLK freq> <COREPLL ratio> <MPXPLL ratio>\n");
+ puts(" reset altbank [cf <SYSCLK freq> <COREPLL ratio> <MPXPLL ratio>]\n");
+ puts(" reset altbank [wd]\n");
+ puts("For example: reset cf 40 2.5 10\n");
+ puts("See MPC8641HPCN Design Workbook for valid values of command line parameters.\n");
+}
generated by cgit v1.1 at 2024-12-30 13:52:04 +0000