mpc85xx: Add support for SBC8548 (updated)
Add support for Wind River's SBC8548 reference board.
Signed-off by: Joe Hamman <joe.hamman@embeddedspecialties.com>
Signed-off by: Andy Fleming <afleming@freescale.com>
diff --git a/board/sbc8548/sbc8548.c b/board/sbc8548/sbc8548.c
new file mode 100644
index 0000000..5e258f5
--- /dev/null
+++ b/board/sbc8548/sbc8548.c
@@ -0,0 +1,569 @@
+/*
+ * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
+ * Copyright 2007 Embedded Specialties, Inc.
+ *
+ * Copyright 2004, 2007 Freescale Semiconductor.
+ *
+ * (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_85xx.h>
+#include <asm/immap_fsl_pci.h>
+#include <spd.h>
+#include <miiphy.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+extern void ddr_enable_ecc(unsigned int dram_size);
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+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)
+{
+ volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
+ volatile ccsr_local_ecm_t *ecm = (void *)(CFG_MPC85xx_ECM_ADDR);
+
+ printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
+ (volatile)(*(u_char *)CFG_BD_REV) >> 4);
+
+ /*
+ * Initialize local bus.
+ */
+ local_bus_init ();
+
+ /*
+ * Fix CPU2 errata: A core hang possible while executing a
+ * msync instruction and a snoopable transaction from an I/O
+ * master tagged to make quick forward progress is present.
+ */
+ ecm->eebpcr |= (1 << 16);
+
+ /*
+ * Hack TSEC 3 and 4 IO voltages.
+ */
+ gur->tsec34ioovcr = 0xe7e0; /* 1110 0111 1110 0xxx */
+
+ ecm->eedr = 0xffffffff; /* clear ecm errors */
+ ecm->eeer = 0xffffffff; /* enable ecm errors */
+ return 0;
+}
+
+long int
+initdram(int board_type)
+{
+ long dram_size = 0;
+
+ puts("Initializing\n");
+
+#if defined(CONFIG_DDR_DLL)
+ {
+ /*
+ * Work around to stabilize DDR DLL MSYNC_IN.
+ * Errata DDR9 seems to have been fixed.
+ * This is now the workaround for Errata DDR11:
+ * Override DLL = 1, Course Adj = 1, Tap Select = 0
+ */
+
+ volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
+
+ gur->ddrdllcr = 0x81000000;
+ asm("sync;isync;msync");
+ udelay(200);
+ }
+#endif
+
+#if defined(CONFIG_SPD_EEPROM)
+ dram_size = spd_sdram ();
+#else
+ dram_size = fixed_sdram ();
+#endif
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+ /*
+ * Initialize and enable DDR ECC.
+ */
+ ddr_enable_ecc(dram_size);
+#endif
+ /*
+ * SDRAM Initialization
+ */
+ sdram_init();
+
+ puts(" DDR: ");
+ return dram_size;
+}
+
+/*
+ * Initialize Local Bus
+ */
+void
+local_bus_init(void)
+{
+ volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
+ volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
+
+ uint clkdiv;
+ uint lbc_hz;
+ sys_info_t sysinfo;
+
+ get_sys_info(&sysinfo);
+ clkdiv = (lbc->lcrr & 0x0f) * 2;
+ lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
+
+ gur->lbiuiplldcr1 = 0x00078080;
+ if (clkdiv == 16) {
+ gur->lbiuiplldcr0 = 0x7c0f1bf0;
+ } else if (clkdiv == 8) {
+ gur->lbiuiplldcr0 = 0x6c0f1bf0;
+ } else if (clkdiv == 4) {
+ gur->lbiuiplldcr0 = 0x5c0f1bf0;
+ }
+
+ lbc->lcrr |= 0x00030000;
+
+ asm("sync;isync;msync");
+
+ lbc->ltesr = 0xffffffff; /* Clear LBC error interrupts */
+ lbc->lteir = 0xffffffff; /* Enable LBC error interrupts */
+}
+
+/*
+ * Initialize SDRAM memory on the Local Bus.
+ */
+void
+sdram_init(void)
+{
+#if defined(CFG_OR3_PRELIM) && defined(CFG_BR3_PRELIM)
+
+ uint idx;
+ volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
+ uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE;
+ uint lsdmr_common;
+
+ puts(" SDRAM: ");
+
+ print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
+
+ /*
+ * Setup SDRAM Base and Option Registers
+ */
+ lbc->or3 = CFG_OR3_PRELIM;
+ asm("msync");
+
+ lbc->br3 = CFG_BR3_PRELIM;
+ asm("msync");
+
+ lbc->lbcr = CFG_LBC_LBCR;
+ asm("msync");
+
+
+ lbc->lsrt = CFG_LBC_LSRT;
+ lbc->mrtpr = CFG_LBC_MRTPR;
+ asm("msync");
+
+ /*
+ * MPC8548 uses "new" 15-16 style addressing.
+ */
+ lsdmr_common = CFG_LBC_LSDMR_COMMON;
+ lsdmr_common |= CFG_LBC_LSDMR_BSMA1516;
+
+ /*
+ * Issue PRECHARGE ALL command.
+ */
+ lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_PCHALL;
+ asm("sync;msync");
+ *sdram_addr = 0xff;
+ ppcDcbf((unsigned long) sdram_addr);
+ udelay(100);
+
+ /*
+ * Issue 8 AUTO REFRESH commands.
+ */
+ for (idx = 0; idx < 8; idx++) {
+ lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_ARFRSH;
+ asm("sync;msync");
+ *sdram_addr = 0xff;
+ ppcDcbf((unsigned long) sdram_addr);
+ udelay(100);
+ }
+
+ /*
+ * Issue 8 MODE-set command.
+ */
+ lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_MRW;
+ asm("sync;msync");
+ *sdram_addr = 0xff;
+ ppcDcbf((unsigned long) sdram_addr);
+ udelay(100);
+
+ /*
+ * Issue NORMAL OP command.
+ */
+ lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_NORMAL;
+ asm("sync;msync");
+ *sdram_addr = 0xff;
+ ppcDcbf((unsigned long) sdram_addr);
+ udelay(200); /* Overkill. Must wait > 200 bus cycles */
+
+#endif /* enable SDRAM init */
+}
+
+#if defined(CFG_DRAM_TEST)
+int
+testdram(void)
+{
+ uint *pstart = (uint *) CFG_MEMTEST_START;
+ uint *pend = (uint *) CFG_MEMTEST_END;
+ uint *p;
+
+ printf("Testing DRAM from 0x%08x to 0x%08x\n",
+ CFG_MEMTEST_START,
+ CFG_MEMTEST_END);
+
+ printf("DRAM test phase 1:\n");
+ for (p = pstart; p < pend; p++)
+ *p = 0xaaaaaaaa;
+
+ for (p = pstart; p < pend; p++) {
+ if (*p != 0xaaaaaaaa) {
+ printf ("DRAM test fails at: %08x\n", (uint) p);
+ return 1;
+ }
+ }
+
+ printf("DRAM test phase 2:\n");
+ for (p = pstart; p < pend; p++)
+ *p = 0x55555555;
+
+ for (p = pstart; p < pend; p++) {
+ if (*p != 0x55555555) {
+ printf ("DRAM test fails at: %08x\n", (uint) p);
+ return 1;
+ }
+ }
+
+ printf("DRAM test passed.\n");
+ return 0;
+}
+#endif
+
+#if !defined(CONFIG_SPD_EEPROM)
+/*************************************************************************
+ * fixed_sdram init -- doesn't use serial presence detect.
+ * assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
+ ************************************************************************/
+long int fixed_sdram (void)
+{
+ #define CFG_DDR_CONTROL 0xc300c000
+
+ volatile ccsr_ddr_t *ddr = (void *)(CFG_MPC85xx_DDR_ADDR);
+
+ ddr->cs0_bnds = 0x0000007f;
+ ddr->cs1_bnds = 0x008000ff;
+ ddr->cs2_bnds = 0x00000000;
+ ddr->cs3_bnds = 0x00000000;
+ ddr->cs0_config = 0x80010101;
+ ddr->cs1_config = 0x80010101;
+ ddr->cs2_config = 0x00000000;
+ ddr->cs3_config = 0x00000000;
+ ddr->ext_refrec = 0x00000000;
+ ddr->timing_cfg_0 = 0x00220802;
+ ddr->timing_cfg_1 = 0x38377322;
+ ddr->timing_cfg_2 = 0x0fa044C7;
+ ddr->sdram_cfg = 0x4300C000;
+ ddr->sdram_cfg_2 = 0x24401000;
+ ddr->sdram_mode = 0x23C00542;
+ ddr->sdram_mode_2 = 0x00000000;
+ ddr->sdram_interval = 0x05080100;
+ ddr->sdram_md_cntl = 0x00000000;
+ ddr->sdram_data_init = 0x00000000;
+ ddr->sdram_clk_cntl = 0x03800000;
+ asm("sync;isync;msync");
+ udelay(500);
+
+ #if defined (CONFIG_DDR_ECC)
+ /* Enable ECC checking */
+ ddr->sdram_cfg = (CFG_DDR_CONTROL | 0x20000000);
+ #else
+ ddr->sdram_cfg = CFG_DDR_CONTROL;
+ #endif
+
+ return CFG_SDRAM_SIZE * 1024 * 1024;
+}
+#endif
+
+#if defined(CONFIG_PCI) || defined(CONFIG_PCI1)
+/* For some reason the Tundra PCI bridge shows up on itself as a
+ * different device. Work around that by refusing to configure it.
+ */
+void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }
+
+static struct pci_config_table pci_sbc8548_config_table[] = {
+ {0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
+ {0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
+ {0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
+ mpc85xx_config_via_usbide, {0,0,0}},
+ {0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
+ mpc85xx_config_via_usb, {0,0,0}},
+ {0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
+ mpc85xx_config_via_usb2, {0,0,0}},
+ {0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
+ mpc85xx_config_via_power, {0,0,0}},
+ {0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
+ mpc85xx_config_via_ac97, {0,0,0}},
+ {},
+};
+
+static struct pci_controller pci1_hose = {
+ config_table: pci_sbc8548_config_table};
+#endif /* CONFIG_PCI */
+
+#ifdef CONFIG_PCI2
+static struct pci_controller pci2_hose;
+#endif /* CONFIG_PCI2 */
+
+#ifdef CONFIG_PCIE1
+static struct pci_controller pcie1_hose;
+#endif /* CONFIG_PCIE1 */
+
+int first_free_busno=0;
+
+void
+pci_init_board(void)
+{
+ volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
+
+#ifdef CONFIG_PCI1
+{
+ volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR;
+ extern void fsl_pci_init(struct pci_controller *hose);
+ struct pci_controller *hose = &pci1_hose;
+ struct pci_config_table *table;
+
+ uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; /* PORDEVSR[15] */
+ uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; /* PORDEVSR[14] */
+ uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; /* PORPLLSR[16] */
+
+ uint pci_agent = (host_agent == 3) || (host_agent == 4 ) || (host_agent == 6);
+
+ uint pci_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
+
+ if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) {
+ printf (" PCI: %d bit, %s MHz, %s, %s, %s\n",
+ (pci_32) ? 32 : 64,
+ (pci_speed == 33333000) ? "33" :
+ (pci_speed == 66666000) ? "66" : "unknown",
+ pci_clk_sel ? "sync" : "async",
+ pci_agent ? "agent" : "host",
+ pci_arb ? "arbiter" : "external-arbiter"
+ );
+
+
+ /* inbound */
+ pci_set_region(hose->regions + 0,
+ CFG_PCI_MEMORY_BUS,
+ CFG_PCI_MEMORY_PHYS,
+ CFG_PCI_MEMORY_SIZE,
+ PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+
+ /* outbound memory */
+ pci_set_region(hose->regions + 1,
+ CFG_PCI1_MEM_BASE,
+ CFG_PCI1_MEM_PHYS,
+ CFG_PCI1_MEM_SIZE,
+ PCI_REGION_MEM);
+
+ /* outbound io */
+ pci_set_region(hose->regions + 2,
+ CFG_PCI1_IO_BASE,
+ CFG_PCI1_IO_PHYS,
+ CFG_PCI1_IO_SIZE,
+ PCI_REGION_IO);
+ hose->region_count = 3;
+
+ /* relocate config table pointers */
+ hose->config_table = \
+ (struct pci_config_table *)((uint)hose->config_table + gd->reloc_off);
+ for (table = hose->config_table; table && table->vendor; table++)
+ table->config_device += gd->reloc_off;
+
+ hose->first_busno=first_free_busno;
+ pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
+
+ fsl_pci_init(hose);
+ first_free_busno=hose->last_busno+1;
+ printf ("PCI on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
+#ifdef CONFIG_PCIX_CHECK
+ if (!(gur->pordevsr & PORDEVSR_PCI)) {
+ /* PCI-X init */
+ if (CONFIG_SYS_CLK_FREQ < 66000000)
+ printf("PCI-X will only work at 66 MHz\n");
+
+ reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
+ | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
+ pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16);
+ }
+#endif
+ } else {
+ printf (" PCI: disabled\n");
+ }
+}
+#else
+ gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
+#endif
+
+#ifdef CONFIG_PCI2
+{
+ uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
+ uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
+ if (pci_dual) {
+ printf (" PCI2: 32 bit, 66 MHz, %s\n",
+ pci2_clk_sel ? "sync" : "async");
+ } else {
+ printf (" PCI2: disabled\n");
+ }
+}
+#else
+ gur->devdisr |= MPC85xx_DEVDISR_PCI2; /* disable */
+#endif /* CONFIG_PCI2 */
+
+#ifdef CONFIG_PCIE1
+{
+ volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE1_ADDR;
+ extern void fsl_pci_init(struct pci_controller *hose);
+ struct pci_controller *hose = &pcie1_hose;
+ int pcie_ep = (host_agent == 0) || (host_agent == 2 ) || (host_agent == 3);
+
+ int pcie_configured = io_sel >= 1;
+
+ if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
+ printf ("\n PCIE connected to slot as %s (base address %x)",
+ pcie_ep ? "End Point" : "Root Complex",
+ (uint)pci);
+
+ if (pci->pme_msg_det) {
+ pci->pme_msg_det = 0xffffffff;
+ debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det);
+ }
+ printf ("\n");
+
+ /* inbound */
+ pci_set_region(hose->regions + 0,
+ CFG_PCI_MEMORY_BUS,
+ CFG_PCI_MEMORY_PHYS,
+ CFG_PCI_MEMORY_SIZE,
+ PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+ /* outbound memory */
+ pci_set_region(hose->regions + 1,
+ CFG_PCIE1_MEM_BASE,
+ CFG_PCIE1_MEM_PHYS,
+ CFG_PCIE1_MEM_SIZE,
+ PCI_REGION_MEM);
+
+ /* outbound io */
+ pci_set_region(hose->regions + 2,
+ CFG_PCIE1_IO_BASE,
+ CFG_PCIE1_IO_PHYS,
+ CFG_PCIE1_IO_SIZE,
+ PCI_REGION_IO);
+
+ hose->region_count = 3;
+
+ hose->first_busno=first_free_busno;
+ pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
+
+ fsl_pci_init(hose);
+ printf ("PCIE on bus %d - %d\n",hose->first_busno,hose->last_busno);
+
+ first_free_busno=hose->last_busno+1;
+
+ } else {
+ printf (" PCIE: disabled\n");
+ }
+ }
+#else
+ gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
+#endif
+
+}
+
+int last_stage_init(void)
+{
+ return 0;
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_pci_setup(void *blob, bd_t *bd)
+{
+ int node, tmp[2];
+ const char *path;
+
+ node = fdt_path_offset(blob, "/aliases");
+ tmp[0] = 0;
+ if (node >= 0) {
+#ifdef CONFIG_PCI1
+ path = fdt_getprop(blob, node, "pci0", NULL);
+ if (path) {
+ tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno;
+ do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
+ }
+#endif
+#ifdef CONFIG_PCIE1
+ path = fdt_getprop(blob, node, "pci1", NULL);
+ if (path) {
+ tmp[1] = pcie1_hose.last_busno - pcie1_hose.first_busno;
+ do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
+ }
+#endif
+ }
+}
+#endif
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+#ifdef CONFIG_PCI
+ ft_pci_setup(blob, bd);
+#endif
+}
+#endif
+