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-rw-r--r--board/freescale/mpc8349itx/Makefile48
-rw-r--r--board/freescale/mpc8349itx/config.mk31
-rw-r--r--board/freescale/mpc8349itx/mpc8349itx.c407
-rw-r--r--board/freescale/mpc8349itx/pci.c392
4 files changed, 878 insertions, 0 deletions
diff --git a/board/freescale/mpc8349itx/Makefile b/board/freescale/mpc8349itx/Makefile
new file mode 100644
index 0000000..31bcdb8
--- /dev/null
+++ b/board/freescale/mpc8349itx/Makefile
@@ -0,0 +1,48 @@
+#
+# Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).a
+
+COBJS := $(BOARD).o pci.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) crv $@ $(OBJS)
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/freescale/mpc8349itx/config.mk b/board/freescale/mpc8349itx/config.mk
new file mode 100644
index 0000000..79f1765
--- /dev/null
+++ b/board/freescale/mpc8349itx/config.mk
@@ -0,0 +1,31 @@
+#
+# Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
+#
+# 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
+#
+
+#
+# MPC8349E-mITX and MPC8349E-mITX-GP
+#
+
+sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
+
+ifndef TEXT_BASE
+TEXT_BASE = 0xFEF00000
+endif
diff --git a/board/freescale/mpc8349itx/mpc8349itx.c b/board/freescale/mpc8349itx/mpc8349itx.c
new file mode 100644
index 0000000..c82f784
--- /dev/null
+++ b/board/freescale/mpc8349itx/mpc8349itx.c
@@ -0,0 +1,407 @@
+/*
+ * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
+ *
+ * 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 <ioports.h>
+#include <mpc83xx.h>
+#include <i2c.h>
+#include <spd.h>
+#include <miiphy.h>
+
+#ifdef CONFIG_PCI
+#include <asm/mpc8349_pci.h>
+#include <pci.h>
+#endif
+
+#ifdef CONFIG_SPD_EEPROM
+#include <spd_sdram.h>
+#else
+#include <asm/mmu.h>
+#endif
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+#elif defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#endif
+
+#ifndef CONFIG_SPD_EEPROM
+/*************************************************************************
+ * fixed sdram init -- doesn't use serial presence detect.
+ ************************************************************************/
+int fixed_sdram(void)
+{
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
+ u32 ddr_size; /* The size of RAM, in bytes */
+ u32 ddr_size_log2 = 0;
+
+ for (ddr_size = CFG_DDR_SIZE * 0x100000; ddr_size > 1; ddr_size >>= 1) {
+ if (ddr_size & 1) {
+ return -1;
+ }
+ ddr_size_log2++;
+ }
+
+ im->sysconf.ddrlaw[0].ar =
+ LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
+ im->sysconf.ddrlaw[0].bar = (CFG_DDR_SDRAM_BASE >> 12) & 0xfffff;
+
+ /* Only one CS0 for DDR */
+ im->ddr.csbnds[0].csbnds = 0x0000000f;
+ im->ddr.cs_config[0] = CFG_DDR_CONFIG;
+
+ debug("cs0_bnds = 0x%08x\n", im->ddr.csbnds[0].csbnds);
+ debug("cs0_config = 0x%08x\n", im->ddr.cs_config[0]);
+
+ debug("DDR:bar=0x%08x\n", im->sysconf.ddrlaw[0].bar);
+ debug("DDR:ar=0x%08x\n", im->sysconf.ddrlaw[0].ar);
+
+ im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
+ im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;/* Was "2 << TIMING_CFG2_WR_DATA_DELAY_SHIFT" */
+ im->ddr.sdram_cfg = SDRAM_CFG_SREN | SDRAM_CFG_SDRAM_TYPE_DDR1;
+ im->ddr.sdram_mode =
+ (0x0000 << SDRAM_MODE_ESD_SHIFT) | (0x0032 << SDRAM_MODE_SD_SHIFT);
+ im->ddr.sdram_interval =
+ (0x0410 << SDRAM_INTERVAL_REFINT_SHIFT) | (0x0100 <<
+ SDRAM_INTERVAL_BSTOPRE_SHIFT);
+ im->ddr.sdram_clk_cntl = CFG_DDR_SDRAM_CLK_CNTL;
+
+ udelay(200);
+
+ im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
+
+ debug("DDR:timing_cfg_1=0x%08x\n", im->ddr.timing_cfg_1);
+ debug("DDR:timing_cfg_2=0x%08x\n", im->ddr.timing_cfg_2);
+ debug("DDR:sdram_mode=0x%08x\n", im->ddr.sdram_mode);
+ debug("DDR:sdram_interval=0x%08x\n", im->ddr.sdram_interval);
+ debug("DDR:sdram_cfg=0x%08x\n", im->ddr.sdram_cfg);
+
+ return CFG_DDR_SIZE;
+}
+#endif
+
+#ifdef CONFIG_PCI
+/*
+ * Initialize PCI Devices, report devices found
+ */
+#ifndef CONFIG_PCI_PNP
+static struct pci_config_table pci_mpc83xxmitx_config_table[] = {
+ {
+ PCI_ANY_ID,
+ PCI_ANY_ID,
+ PCI_ANY_ID,
+ PCI_ANY_ID,
+ 0x0f,
+ PCI_ANY_ID,
+ pci_cfgfunc_config_device,
+ {
+ PCI_ENET0_IOADDR,
+ PCI_ENET0_MEMADDR,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER}
+ },
+ {}
+}
+#endif
+
+volatile static struct pci_controller hose[] = {
+ {
+#ifndef CONFIG_PCI_PNP
+ config_table:pci_mpc83xxmitx_config_table,
+#endif
+ },
+ {
+#ifndef CONFIG_PCI_PNP
+ config_table:pci_mpc83xxmitx_config_table,
+#endif
+ }
+};
+#endif /* CONFIG_PCI */
+
+long int initdram(int board_type)
+{
+ volatile immap_t *im = (immap_t *) CFG_IMMR;
+ u32 msize = 0;
+#ifdef CONFIG_DDR_ECC
+ volatile ddr83xx_t *ddr = &im->ddr;
+#endif
+
+ if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
+ return -1;
+
+ /* DDR SDRAM - Main SODIMM */
+ im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR;
+#ifdef CONFIG_SPD_EEPROM
+ msize = spd_sdram();
+#else
+ msize = fixed_sdram();
+#endif
+
+#ifdef CONFIG_DDR_ECC
+ if (ddr->sdram_cfg & SDRAM_CFG_ECC_EN)
+ /* Unlike every other board, on the 83xx spd_sdram() returns
+ megabytes instead of just bytes. That's why we need to
+ multiple by 1MB when calling ddr_enable_ecc(). */
+ ddr_enable_ecc(msize * 1048576);
+#endif
+
+ /* return total bus RAM size(bytes) */
+ return msize * 1024 * 1024;
+}
+
+int checkboard(void)
+{
+#ifdef CONFIG_MPC8349ITX
+ puts("Board: Freescale MPC8349E-mITX\n");
+#else
+ puts("Board: Freescale MPC8349E-mITX-GP\n");
+#endif
+
+ return 0;
+}
+
+/*
+ * Implement a work-around for a hardware problem with compact
+ * flash.
+ *
+ * Program the UPM if compact flash is enabled.
+ */
+int misc_init_f(void)
+{
+#ifdef CONFIG_VSC7385
+ volatile u32 *vsc7385_cpuctrl;
+
+ /* 0x1c0c0 is the VSC7385 CPU Control (CPUCTRL) Register. The power up
+ default of VSC7385 L1_IRQ and L2_IRQ requests are active high. That
+ means it is 0 when the IRQ is not active. This makes the wire-AND
+ logic always assert IRQ7 to CPU even if there is no request from the
+ switch. Since the compact flash and the switch share the same IRQ,
+ the Linux kernel will think that the compact flash is requesting irq
+ and get stuck when it tries to clear the IRQ. Thus we need to set
+ the L2_IRQ0 and L2_IRQ1 to active low.
+
+ The following code sets the L1_IRQ and L2_IRQ polarity to active low.
+ Without this code, compact flash will not work in Linux because
+ unlike U-Boot, Linux uses the IRQ, so this code is necessary if we
+ don't enable compact flash for U-Boot.
+ */
+
+ vsc7385_cpuctrl = (volatile u32 *)(CFG_VSC7385_BASE + 0x1c0c0);
+ *vsc7385_cpuctrl |= 0x0c;
+#endif
+
+#ifdef CONFIG_COMPACT_FLASH
+ /* UPM Table Configuration Code */
+ static uint UPMATable[] = {
+ 0xcffffc00, 0x0fffff00, 0x0fafff00, 0x0fafff00,
+ 0x0faffd00, 0x0faffc04, 0x0ffffc00, 0x3ffffc01,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfff7fc00,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+ 0xcffffc00, 0x0fffff00, 0x0ff3ff00, 0x0ff3ff00,
+ 0x0ff3fe00, 0x0ffffc00, 0x3ffffc05, 0xfffffc00,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01,
+ 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01
+ };
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile lbus83xx_t *lbus = &immap->lbus;
+
+ lbus->bank[3].br = CFG_BR3_PRELIM;
+ lbus->bank[3].or = CFG_OR3_PRELIM;
+
+ /* Program the MAMR. RFEN=0, OP=00, UWPL=1, AM=000, DS=01, G0CL=000,
+ GPL4=0, RLF=0001, WLF=0001, TLF=0001, MAD=000000
+ */
+ lbus->mamr = 0x08404440;
+
+ upmconfig(0, UPMATable, sizeof(UPMATable) / sizeof(UPMATable[0]));
+
+ puts("UPMA: Configured for compact flash\n");
+#endif
+
+ return 0;
+}
+
+/*
+ * Make sure the EEPROM has the HRCW correctly programmed.
+ * Make sure the RTC is correctly programmed.
+ *
+ * The MPC8349E-mITX can be configured to load the HRCW from
+ * EEPROM instead of flash. This is controlled via jumpers
+ * LGPL0, 1, and 3. Normally, these jumpers are set to 000 (all
+ * jumpered), but if they're set to 001 or 010, then the HRCW is
+ * read from the "I2C EEPROM".
+ *
+ * This function makes sure that the I2C EEPROM is programmed
+ * correctly.
+ */
+int misc_init_r(void)
+{
+ int rc = 0;
+
+#ifdef CONFIG_HARD_I2C
+
+ unsigned int orig_bus = i2c_get_bus_num();
+ u8 i2c_data;
+
+#ifdef CFG_I2C_RTC_ADDR
+ u8 ds1339_data[17];
+#endif
+
+#ifdef CFG_I2C_EEPROM_ADDR
+ static u8 eeprom_data[] = /* HRCW data */
+ {
+ 0xAA, 0x55, 0xAA, /* Preamble */
+ 0x7C, /* ACS=0, BYTE_EN=1111, CONT=1 */
+ 0x02, 0x40, /* RCWL ADDR=0x0_0900 */
+ (CFG_HRCW_LOW >> 24) & 0xFF,
+ (CFG_HRCW_LOW >> 16) & 0xFF,
+ (CFG_HRCW_LOW >> 8) & 0xFF,
+ CFG_HRCW_LOW & 0xFF,
+ 0x7C, /* ACS=0, BYTE_EN=1111, CONT=1 */
+ 0x02, 0x41, /* RCWH ADDR=0x0_0904 */
+ (CFG_HRCW_HIGH >> 24) & 0xFF,
+ (CFG_HRCW_HIGH >> 16) & 0xFF,
+ (CFG_HRCW_HIGH >> 8) & 0xFF,
+ CFG_HRCW_HIGH & 0xFF
+ };
+
+ u8 data[sizeof(eeprom_data)];
+#endif
+
+ printf("Board revision: ");
+ i2c_set_bus_num(1);
+ if (i2c_read(CFG_I2C_8574A_ADDR2, 0, 0, &i2c_data, sizeof(i2c_data)) == 0)
+ printf("%u.%u (PCF8475A)\n", (i2c_data & 0x02) >> 1, i2c_data & 0x01);
+ else if (i2c_read(CFG_I2C_8574_ADDR2, 0, 0, &i2c_data, sizeof(i2c_data)) == 0)
+ printf("%u.%u (PCF8475)\n", (i2c_data & 0x02) >> 1, i2c_data & 0x01);
+ else {
+ printf("Unknown\n");
+ rc = 1;
+ }
+
+#ifdef CFG_I2C_EEPROM_ADDR
+ i2c_set_bus_num(0);
+
+ if (i2c_read(CFG_I2C_EEPROM_ADDR, 0, 2, data, sizeof(data)) == 0) {
+ if (memcmp(data, eeprom_data, sizeof(data)) != 0) {
+ if (i2c_write
+ (CFG_I2C_EEPROM_ADDR, 0, 2, eeprom_data,
+ sizeof(eeprom_data)) != 0) {
+ puts("Failure writing the HRCW to EEPROM via I2C.\n");
+ rc = 1;
+ }
+ }
+ } else {
+ puts("Failure reading the HRCW from EEPROM via I2C.\n");
+ rc = 1;
+ }
+#endif
+
+#ifdef CFG_I2C_RTC_ADDR
+ i2c_set_bus_num(1);
+
+ if (i2c_read(CFG_I2C_RTC_ADDR, 0, 1, ds1339_data, sizeof(ds1339_data))
+ == 0) {
+
+ /* Work-around for MPC8349E-mITX bug #13601.
+ If the RTC does not contain valid register values, the DS1339
+ Linux driver will not work.
+ */
+
+ /* Make sure status register bits 6-2 are zero */
+ ds1339_data[0x0f] &= ~0x7c;
+
+ /* Check for a valid day register value */
+ ds1339_data[0x03] &= ~0xf8;
+ if (ds1339_data[0x03] == 0) {
+ ds1339_data[0x03] = 1;
+ }
+
+ /* Check for a valid date register value */
+ ds1339_data[0x04] &= ~0xc0;
+ if ((ds1339_data[0x04] == 0) ||
+ ((ds1339_data[0x04] & 0x0f) > 9) ||
+ (ds1339_data[0x04] >= 0x32)) {
+ ds1339_data[0x04] = 1;
+ }
+
+ /* Check for a valid month register value */
+ ds1339_data[0x05] &= ~0x60;
+
+ if ((ds1339_data[0x05] == 0) ||
+ ((ds1339_data[0x05] & 0x0f) > 9) ||
+ ((ds1339_data[0x05] >= 0x13)
+ && (ds1339_data[0x05] <= 0x19))) {
+ ds1339_data[0x05] = 1;
+ }
+
+ /* Enable Oscillator and rate select */
+ ds1339_data[0x0e] = 0x1c;
+
+ /* Work-around for MPC8349E-mITX bug #13330.
+ Ensure that the RTC control register contains the value 0x1c.
+ This affects SATA performance.
+ */
+
+ if (i2c_write
+ (CFG_I2C_RTC_ADDR, 0, 1, ds1339_data,
+ sizeof(ds1339_data))) {
+ puts("Failure writing to the RTC via I2C.\n");
+ rc = 1;
+ }
+ } else {
+ puts("Failure reading from the RTC via I2C.\n");
+ rc = 1;
+ }
+#endif
+
+ i2c_set_bus_num(orig_bus);
+#endif
+
+ return rc;
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+#if defined(CONFIG_OF_FLAT_TREE)
+ u32 *p;
+ int len;
+
+ 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
+ ft_cpu_setup(blob, bd);
+#ifdef CONFIG_PCI
+ ft_pci_setup(blob, bd);
+#endif
+}
+#endif
diff --git a/board/freescale/mpc8349itx/pci.c b/board/freescale/mpc8349itx/pci.c
new file mode 100644
index 0000000..5ca094d
--- /dev/null
+++ b/board/freescale/mpc8349itx/pci.c
@@ -0,0 +1,392 @@
+/*
+ * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
+ *
+ * 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>
+
+#ifdef CONFIG_PCI
+
+#include <asm/mmu.h>
+#include <asm/global_data.h>
+#include <pci.h>
+#include <asm/mpc8349_pci.h>
+#include <i2c.h>
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+#elif defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* System RAM mapped to PCI space */
+#define CONFIG_PCI_SYS_MEM_BUS CFG_SDRAM_BASE
+#define CONFIG_PCI_SYS_MEM_PHYS CFG_SDRAM_BASE
+
+#ifndef CONFIG_PCI_PNP
+static struct pci_config_table pci_mpc8349itx_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 pci_hose[] = {
+ {
+#ifndef CONFIG_PCI_PNP
+ config_table:pci_mpc8349itx_config_table,
+#endif
+ },
+ {
+#ifndef CONFIG_PCI_PNP
+ config_table:pci_mpc8349itx_config_table,
+#endif
+ }
+};
+
+/**************************************************************************
+ * pci_init_board()
+ *
+ * NOTICE: PCI2 is not currently supported
+ *
+ */
+void pci_init_board(void)
+{
+ volatile immap_t *immr;
+ volatile clk83xx_t *clk;
+ volatile law83xx_t *pci_law;
+ volatile pot83xx_t *pci_pot;
+ volatile pcictrl83xx_t *pci_ctrl;
+ volatile pciconf83xx_t *pci_conf;
+ u8 reg8;
+ u16 reg16;
+ u32 reg32;
+ u32 dev;
+ struct pci_controller *hose;
+
+ immr = (immap_t *) CFG_IMMR;
+ clk = (clk83xx_t *) & immr->clk;
+ pci_law = immr->sysconf.pcilaw;
+ pci_pot = immr->ios.pot;
+ pci_ctrl = immr->pci_ctrl;
+ pci_conf = immr->pci_conf;
+
+ hose = &pci_hose[0];
+
+ /*
+ * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
+ */
+
+ reg32 = clk->occr;
+ udelay(2000);
+
+#ifdef CONFIG_HARD_I2C
+ i2c_set_bus_num(1);
+ /* Read the PCI_M66EN jumper setting */
+ if ((i2c_read(CFG_I2C_8574_ADDR2, 0, 0, &reg8, sizeof(reg8)) == 0) ||
+ (i2c_read(CFG_I2C_8574A_ADDR2, 0, 0, &reg8, sizeof(reg8)) == 0)) {
+ if (reg8 & I2C_8574_PCI66)
+ clk->occr = 0xff000000; /* 66 MHz PCI */
+ else
+ clk->occr = 0xff600001; /* 33 MHz PCI */
+ } else {
+ clk->occr = 0xff600001; /* 33 MHz PCI */
+ }
+#else
+ clk->occr = 0xff000000; /* 66 MHz PCI */
+#endif
+
+ udelay(2000);
+
+ /*
+ * Release PCI RST Output signal
+ */
+ pci_ctrl[0].gcr = 0;
+ udelay(2000);
+ pci_ctrl[0].gcr = 1;
+
+#ifdef CONFIG_MPC83XX_PCI2
+ pci_ctrl[1].gcr = 0;
+ udelay(2000);
+ pci_ctrl[1].gcr = 1;
+#endif
+
+ /* We need to wait at least a 1sec based on PCI specs */
+ {
+ int i;
+
+ for (i = 0; i < 1000; i++)
+ udelay(1000);
+ }
+
+ /*
+ * Configure PCI Local Access Windows
+ */
+ pci_law[0].bar = CFG_PCI1_MEM_PHYS & LAWBAR_BAR;
+ pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G;
+
+ pci_law[1].bar = CFG_PCI1_IO_PHYS & LAWBAR_BAR;
+ pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_32M;
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+
+ /* PCI1 mem space - prefetch */
+ pci_pot[0].potar = (CFG_PCI1_MEM_BASE >> 12) & POTAR_TA_MASK;
+ pci_pot[0].pobar = (CFG_PCI1_MEM_PHYS >> 12) & POBAR_BA_MASK;
+ pci_pot[0].pocmr = POCMR_EN | POCMR_PREFETCH_EN | POCMR_CM_256M;
+
+ /* PCI1 IO space */
+ pci_pot[1].potar = (CFG_PCI1_IO_BASE >> 12) & POTAR_TA_MASK;
+ pci_pot[1].pobar = (CFG_PCI1_IO_PHYS >> 12) & POBAR_BA_MASK;
+ pci_pot[1].pocmr = POCMR_EN | POCMR_IO | POCMR_CM_16M;
+
+ /* PCI1 mmio - non-prefetch mem space */
+ pci_pot[2].potar = (CFG_PCI1_MMIO_BASE >> 12) & POTAR_TA_MASK;
+ pci_pot[2].pobar = (CFG_PCI1_MMIO_PHYS >> 12) & POBAR_BA_MASK;
+ pci_pot[2].pocmr = POCMR_EN | POCMR_CM_256M;
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+
+ /* we need RAM mapped to PCI space for the devices to
+ * access main memory */
+ pci_ctrl[0].pitar1 = 0x0;
+ pci_ctrl[0].pibar1 = 0x0;
+ pci_ctrl[0].piebar1 = 0x0;
+ pci_ctrl[0].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP |
+ PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1);
+
+ hose->first_busno = 0;
+ hose->last_busno = 0xff;
+
+ /* PCI memory prefetch space */
+ pci_set_region(hose->regions + 0,
+ CFG_PCI1_MEM_BASE,
+ CFG_PCI1_MEM_PHYS,
+ CFG_PCI1_MEM_SIZE, PCI_REGION_MEM | PCI_REGION_PREFETCH);
+
+ /* PCI memory space */
+ pci_set_region(hose->regions + 1,
+ CFG_PCI1_MMIO_BASE,
+ CFG_PCI1_MMIO_PHYS, CFG_PCI1_MMIO_SIZE, PCI_REGION_MEM);
+
+ /* PCI IO space */
+ pci_set_region(hose->regions + 2,
+ CFG_PCI1_IO_BASE,
+ CFG_PCI1_IO_PHYS, CFG_PCI1_IO_SIZE, PCI_REGION_IO);
+
+ /* System memory space */
+ pci_set_region(hose->regions + 3,
+ CONFIG_PCI_SYS_MEM_BUS,
+ CONFIG_PCI_SYS_MEM_PHYS,
+ gd->ram_size, PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+ hose->region_count = 4;
+
+ pci_setup_indirect(hose,
+ (CFG_IMMR + 0x8300), (CFG_IMMR + 0x8304));
+
+ pci_register_hose(hose);
+
+ /*
+ * Write to Command register
+ */
+ reg16 = 0xff;
+ dev = PCI_BDF(hose->first_busno, 0, 0);
+ pci_hose_read_config_word(hose, dev, PCI_COMMAND, &reg16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff);
+ pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
+ pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
+
+#ifdef CONFIG_PCI_SCAN_SHOW
+ printf("PCI: Bus Dev VenId DevId Class Int\n");
+#endif
+ /*
+ * Hose scan.
+ */
+ hose->last_busno = pci_hose_scan(hose);
+
+#ifdef CONFIG_MPC83XX_PCI2
+ hose = &pci_hose[1];
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+
+ /* PCI2 mem space - prefetch */
+ pci_pot[3].potar = (CFG_PCI2_MEM_BASE >> 12) & POTAR_TA_MASK;
+ pci_pot[3].pobar = (CFG_PCI2_MEM_PHYS >> 12) & POBAR_BA_MASK;
+ pci_pot[3].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_PREFETCH_EN | POCMR_CM_256M;
+
+ /* PCI2 IO space */
+ pci_pot[4].potar = (CFG_PCI2_IO_BASE >> 12) & POTAR_TA_MASK;
+ pci_pot[4].pobar = (CFG_PCI2_IO_PHYS >> 12) & POBAR_BA_MASK;
+ pci_pot[4].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_IO | POCMR_CM_16M;
+
+ /* PCI2 mmio - non-prefetch mem space */
+ pci_pot[5].potar = (CFG_PCI2_MMIO_BASE >> 12) & POTAR_TA_MASK;
+ pci_pot[5].pobar = (CFG_PCI2_MMIO_PHYS >> 12) & POBAR_BA_MASK;
+ pci_pot[5].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_CM_256M;
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+
+ /* we need RAM mapped to PCI space for the devices to
+ * access main memory */
+ pci_ctrl[1].pitar1 = 0x0;
+ pci_ctrl[1].pibar1 = 0x0;
+ pci_ctrl[1].piebar1 = 0x0;
+ pci_ctrl[1].piwar1 =
+ PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP |
+ (__ilog2(gd->ram_size) - 1);
+
+ hose->first_busno = pci_hose[0].last_busno + 1;
+ hose->last_busno = 0xff;
+
+ /* PCI memory prefetch space */
+ pci_set_region(hose->regions + 0,
+ CFG_PCI2_MEM_BASE,
+ CFG_PCI2_MEM_PHYS,
+ CFG_PCI2_MEM_SIZE, PCI_REGION_MEM | PCI_REGION_PREFETCH);
+
+ /* PCI memory space */
+ pci_set_region(hose->regions + 1,
+ CFG_PCI2_MMIO_BASE,
+ CFG_PCI2_MMIO_PHYS, CFG_PCI2_MMIO_SIZE, PCI_REGION_MEM);
+
+ /* PCI IO space */
+ pci_set_region(hose->regions + 2,
+ CFG_PCI2_IO_BASE,
+ CFG_PCI2_IO_PHYS, CFG_PCI2_IO_SIZE, PCI_REGION_IO);
+
+ /* System memory space */
+ pci_set_region(hose->regions + 3,
+ CONFIG_PCI_SYS_MEM_BUS,
+ CONFIG_PCI_SYS_MEM_PHYS,
+ gd->ram_size, PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+ hose->region_count = 4;
+
+ pci_setup_indirect(hose,
+ (CFG_IMMR + 0x8380), (CFG_IMMR + 0x8384));
+
+ pci_register_hose(hose);
+
+ /*
+ * Write to Command register
+ */
+ reg16 = 0xff;
+ dev = PCI_BDF(hose->first_busno, 0, 0);
+ pci_hose_read_config_word(hose, dev, PCI_COMMAND, &reg16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff);
+ pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
+ pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
+
+ /*
+ * Hose scan.
+ */
+ hose->last_busno = pci_hose_scan(hose);
+#endif
+}
+
+#if defined(CONFIG_OF_LIBFDT)
+void
+ft_pci_setup(void *blob, bd_t *bd)
+{
+ int nodeoffset;
+ int err;
+ int tmp[2];
+
+ nodeoffset = fdt_find_node_by_path(blob, "/" OF_SOC "/pci@8500");
+ if (nodeoffset >= 0) {
+ tmp[0] = cpu_to_be32(pci_hose[0].first_busno);
+ tmp[1] = cpu_to_be32(pci_hose[0].last_busno);
+ err = fdt_setprop(blob, nodeoffset, "bus-range",
+ tmp, sizeof(tmp));
+
+ tmp[0] = cpu_to_be32(gd->pci_clk);
+ err = fdt_setprop(blob, nodeoffset, "clock-frequency",
+ tmp, sizeof(tmp[0]));
+ }
+#ifdef CONFIG_MPC83XX_PCI2
+ nodeoffset = fdt_find_node_by_path(blob, "/" OF_SOC "/pci@8500");
+ if (nodeoffset >= 0) {
+ tmp[0] = cpu_to_be32(pci_hose[1].first_busno);
+ tmp[1] = cpu_to_be32(pci_hose[1].last_busno);
+ err = fdt_setprop(blob, nodeoffset, "bus-range",
+ tmp, sizeof(tmp));
+
+ tmp[0] = cpu_to_be32(gd->pci_clk);
+ err = fdt_setprop(blob, nodeoffset, "clock-frequency",
+ tmp, sizeof(tmp[0]));
+ }
+#endif
+}
+#elif defined(CONFIG_OF_FLAT_TREE)
+void
+ft_pci_setup(void *blob, bd_t *bd)
+{
+ u32 *p;
+ int len;
+
+ p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8500/bus-range", &len);
+ if (p != NULL) {
+ p[0] = pci_hose[0].first_busno;
+ p[1] = pci_hose[0].last_busno;
+ }
+
+#ifdef CONFIG_MPC83XX_PCI2
+ p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8600/bus-range", &len);
+ if (p != NULL) {
+ p[0] = pci_hose[1].first_busno;
+ p[1] = pci_hose[1].last_busno;
+ }
+#endif
+}
+#endif /* CONFIG_OF_FLAT_TREE */
+#endif /* CONFIG_PCI */
generated by cgit v1.1 at 2024-11-23 04:14:47 +0000