summaryrefslogtreecommitdiff
path: root/board/mpc8641hpcn/mpc8641hpcn.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/mpc8641hpcn/mpc8641hpcn.c')
-rw-r--r--board/mpc8641hpcn/mpc8641hpcn.c295
1 files changed, 295 insertions, 0 deletions
diff --git a/board/mpc8641hpcn/mpc8641hpcn.c b/board/mpc8641hpcn/mpc8641hpcn.c
new file mode 100644
index 0000000..d02a7ef
--- /dev/null
+++ b/board/mpc8641hpcn/mpc8641hpcn.c
@@ -0,0 +1,295 @@
+/*
+ * Copyright 2004 Freescale Semiconductor.
+ * Jeff Brown (jeffrey@freescale.com)
+ * Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
+ *
+ * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <asm/processor.h>
+#include <asm/immap_86xx.h>
+#include <spd.h>
+
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+extern void ft_cpu_setup(void *blob, bd_t *bd);
+#endif
+
+#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);
+
+void local_bus_init(void);
+void sdram_init(void);
+long int fixed_sdram(void);
+
+
+int board_early_init_f (void)
+{
+ return 0;
+}
+
+int checkboard (void)
+{
+ puts("Board: MPC8641HPCN\n");
+
+#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");
+ }
+
+#else
+ printf("PCI-EXPRESS1: Disabled\n");
+#endif
+
+ /*
+ * Initialize local bus.
+ */
+ local_bus_init();
+
+ return 0;
+}
+
+
+long int
+initdram(int board_type)
+{
+ long dram_size = 0;
+ extern long spd_sdram (void);
+
+#if defined(CONFIG_SPD_EEPROM)
+ dram_size = spd_sdram ();
+#else
+ dram_size = fixed_sdram ();
+#endif
+
+#if defined(CFG_RAMBOOT)
+ puts(" DDR: ");
+ return dram_size;
+#endif
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+ /*
+ * Initialize and enable DDR ECC.
+ */
+ ddr_enable_ecc(dram_size);
+#endif
+
+ puts(" DDR: ");
+ return dram_size;
+}
+
+
+/*
+ * 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)
+{
+ uint *pstart = (uint *) CFG_MEMTEST_START;
+ uint *pend = (uint *) CFG_MEMTEST_END;
+ uint *p;
+
+ printf("SDRAM test phase 1:\n");
+ for (p = pstart; p < pend; p++)
+ *p = 0xaaaaaaaa;
+
+ for (p = pstart; p < pend; p++) {
+ if (*p != 0xaaaaaaaa) {
+ printf ("SDRAM test fails at: %08x\n", (uint) p);
+ return 1;
+ }
+ }
+
+ printf("SDRAM test phase 2:\n");
+ for (p = pstart; p < pend; p++)
+ *p = 0x55555555;
+
+ for (p = pstart; p < pend; p++) {
+ if (*p != 0x55555555) {
+ printf ("SDRAM test fails at: %08x\n", (uint) p);
+ return 1;
+ }
+ }
+
+ printf("SDRAM test passed.\n");
+ return 0;
+}
+#endif
+
+
+#if !defined(CONFIG_SPD_EEPROM)
+/*
+ * Fixed sdram init -- doesn't use serial presence detect.
+ */
+long int fixed_sdram(void)
+{
+#if !defined(CFG_RAMBOOT)
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile ccsr_ddr_t *ddr= &immap->im_ddr1;
+
+ ddr->cs0_bnds = CFG_DDR_CS0_BNDS;
+ ddr->cs0_config = CFG_DDR_CS0_CONFIG;
+ ddr->ext_refrec = CFG_DDR_EXT_REFRESH;
+ ddr->timing_cfg_0 = CFG_DDR_TIMING_0;
+ ddr->timing_cfg_1 = CFG_DDR_TIMING_1;
+ ddr->timing_cfg_2 = CFG_DDR_TIMING_2;
+ 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_clk_cntl = CFG_DDR_CLK_CTRL;
+ ddr->sdram_ocd_cntl = CFG_DDR_OCD_CTRL;
+ ddr->sdram_ocd_status = CFG_DDR_OCD_STATUS;
+
+#if defined (CONFIG_DDR_ECC)
+ ddr->err_disable = 0x0000008D;
+ ddr->err_sbe = 0x00ff0000;
+#endif
+ asm("sync;isync");
+
+ udelay(500);
+
+#if defined (CONFIG_DDR_ECC)
+ /* Enable ECC checking */
+ ddr->sdram_cfg_1 = (CFG_DDR_CONTROL | 0x20000000);
+#else
+ ddr->sdram_cfg_1 = CFG_DDR_CONTROL;
+ ddr->sdram_cfg_2 = CFG_DDR_CONTROL2;
+#endif
+ asm("sync; isync");
+
+ udelay(500);
+#endif
+ return CFG_SDRAM_SIZE * 1024 * 1024;
+}
+#endif /* !defined(CONFIG_SPD_EEPROM) */
+
+
+#if defined(CONFIG_PCI)
+/*
+ * Initialize PCI Devices, report devices found.
+ */
+
+#ifndef CONFIG_PCI_PNP
+static struct pci_config_table pci_fsl86xxads_config_table[] = {
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
+ PCI_IDSEL_NUMBER, PCI_ANY_ID,
+ pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
+ PCI_ENET0_MEMADDR,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
+ } },
+ { }
+};
+#endif
+
+
+static struct pci_controller hose = {
+#ifndef CONFIG_PCI_PNP
+ config_table: pci_mpc86xxcts_config_table,
+#endif
+};
+
+#endif /* CONFIG_PCI */
+
+
+void
+pci_init_board(void)
+{
+#ifdef CONFIG_PCI
+ extern void pci_mpc86xx_init(struct pci_controller *hose);
+
+ pci_mpc86xx_init(&hose);
+#endif /* CONFIG_PCI */
+}
+
+#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup(void *blob, bd_t *bd)
+{
+ u32 *p;
+ 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
+
+
+
generated by cgit v1.1 at 2024-12-23 19:01:59 +0000