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authorStefan Roese <sr@denx.de>2009-06-09 11:50:40 +0200
committerWolfgang Denk <wd@denx.de>2009-06-12 20:47:19 +0200
commite53b507cee5d976953134a565c72fd32c967d7dd (patch)
tree52050ec85b65e0cae28d6328311b5d365874b010 /board/esd/mecp5123
parent6bd55cc65d0c3aa84d719518254fb3c650239ed9 (diff)
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mpc512x: Add esd gmbh mecp5123 board support
MECP5123 is a MPC5121E based module by esd gmbh. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Diffstat (limited to 'board/esd/mecp5123')
-rw-r--r--board/esd/mecp5123/Makefile50
-rw-r--r--board/esd/mecp5123/config.mk23
-rw-r--r--board/esd/mecp5123/mecp5123.c381
3 files changed, 454 insertions, 0 deletions
diff --git a/board/esd/mecp5123/Makefile b/board/esd/mecp5123/Makefile
new file mode 100644
index 0000000..2e3d73a
--- /dev/null
+++ b/board/esd/mecp5123/Makefile
@@ -0,0 +1,50 @@
+#
+# (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
+#
+# 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-y := $(BOARD).o
+
+COBJS := $(COBJS-y)
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/esd/mecp5123/config.mk b/board/esd/mecp5123/config.mk
new file mode 100644
index 0000000..838a018
--- /dev/null
+++ b/board/esd/mecp5123/config.mk
@@ -0,0 +1,23 @@
+#
+# (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
+#
+# 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
+#
+
+TEXT_BASE = 0xFFF00000
diff --git a/board/esd/mecp5123/mecp5123.c b/board/esd/mecp5123/mecp5123.c
new file mode 100644
index 0000000..909b458
--- /dev/null
+++ b/board/esd/mecp5123/mecp5123.c
@@ -0,0 +1,381 @@
+/*
+ * (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
+ * (C) Copyright 2009 Dave Srl www.dave.eu
+ * (C) Copyright 2009 Stefan Roese <sr@denx.de>
+ *
+ * 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 <asm/bitops.h>
+#include <command.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <fdt_support.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Clocks in use */
+#define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN | \
+ CLOCK_SCCR1_LPC_EN | \
+ CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) | \
+ CLOCK_SCCR1_PSCFIFO_EN | \
+ CLOCK_SCCR1_DDR_EN | \
+ CLOCK_SCCR1_FEC_EN | \
+ CLOCK_SCCR1_NFC_EN | \
+ CLOCK_SCCR1_PCI_EN | \
+ CLOCK_SCCR1_TPR_EN)
+
+#define SCCR2_CLOCKS_EN (CLOCK_SCCR2_MEM_EN | \
+ CLOCK_SCCR2_I2C_EN)
+
+#define CSAW_START(start) ((start) & 0xFFFF0000)
+#define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16)
+
+int eeprom_write_enable(unsigned dev_addr, int state)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+
+ if (dev_addr != CONFIG_SYS_I2C_EEPROM_ADDR)
+ return -1;
+
+ if (state == 0)
+ setbits_be32(&im->gpio.gpdat, 0x00100000);
+ else
+ clrbits_be32(&im->gpio.gpdat, 0x00100000);
+
+return 0;
+}
+
+/*
+ * According to MPC5121e RM, configuring local access windows should
+ * be followed by a dummy read of the config register that was
+ * modified last and an isync.
+ */
+static inline void sync_law(volatile void *addr)
+{
+ in_be32(addr);
+ __asm__ __volatile__ ("isync");
+}
+
+int board_early_init_f(void)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ u32 spridr;
+
+ /*
+ * Initialize Local Window for NOR FLASH access
+ */
+ out_be32(&im->sysconf.lpcs0aw,
+ CSAW_START(CONFIG_SYS_FLASH_BASE) |
+ CSAW_STOP(CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE));
+ sync_law(&im->sysconf.lpcs0aw);
+
+ /*
+ * Initialize Local Window for boot access
+ */
+ out_be32(&im->sysconf.lpbaw,
+ CSAW_START(0xffb00000) | CSAW_STOP(0xffb00000, 0x00010000));
+ sync_law(&im->sysconf.lpbaw);
+
+ /*
+ * Initialize Local Window for VPC3 access
+ */
+ out_be32(&im->sysconf.lpcs1aw,
+ CSAW_START(CONFIG_SYS_VPC3_BASE) |
+ CSAW_STOP(CONFIG_SYS_VPC3_BASE, CONFIG_SYS_VPC3_SIZE));
+ sync_law(&im->sysconf.lpcs1aw);
+
+ /*
+ * Configure Flash Speed
+ */
+ out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);
+
+ /*
+ * Configure VPC3 Speed
+ */
+ out_be32(&im->lpc.cs_cfg[1], CONFIG_SYS_CS1_CFG);
+
+ spridr = in_be32(&im->sysconf.spridr);
+ if (SVR_MJREV(spridr) >= 2)
+ out_be32(&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);
+
+ /*
+ * Enable clocks
+ */
+ out_be32(&im->clk.sccr[0], SCCR1_CLOCKS_EN);
+ out_be32(&im->clk.sccr[1], SCCR2_CLOCKS_EN);
+#if defined(CONFIG_IIM) || defined(CONFIG_CMD_FUSE)
+ setbits_be32(&im->clk.sccr[1], CLOCK_SCCR2_IIM_EN);
+#endif
+
+ /*
+ * Configure MSCAN clocks
+ */
+ out_be32(&im->clk.m1ccr, 0x00300000);
+ out_be32(&im->clk.m2ccr, 0x00300000);
+ out_be32(&im->clk.m3ccr, 0x00300000);
+ out_be32(&im->clk.m4ccr, 0x00300000);
+ out_be32(&im->clk.m1ccr, 0x00310000);
+ out_be32(&im->clk.m2ccr, 0x00310000);
+ out_be32(&im->clk.m3ccr, 0x00310000);
+ out_be32(&im->clk.m4ccr, 0x00310000);
+
+ /*
+ * Configure GPIO's
+ */
+ clrbits_be32(&im->gpio.gpodr, 0x000000e0);
+ clrbits_be32(&im->gpio.gpdir, 0x00ef0000);
+ setbits_be32(&im->gpio.gpdir, 0x001000e0);
+ setbits_be32(&im->gpio.gpdat, 0x00100000);
+
+ return 0;
+}
+
+/*
+ * fixed sdram init:
+ * The board doesn't use memory modules that have serial presence
+ * detect or similar mechanism for discovery of the DRAM settings
+ */
+long int fixed_sdram(void)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024;
+ u32 msize_log2 = __ilog2(msize);
+ u32 i;
+
+ /* Initialize IO Control */
+ out_be32(&im->io_ctrl.io_control_mem, IOCTRL_MUX_DDR);
+
+ /* Initialize DDR Local Window */
+ out_be32(&im->sysconf.ddrlaw.bar, CONFIG_SYS_DDR_BASE & 0xFFFFF000);
+ out_be32(&im->sysconf.ddrlaw.ar, msize_log2 - 1);
+ sync_law(&im->sysconf.ddrlaw.ar);
+
+ /* Enable DDR */
+ out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG_EN);
+
+ /* Initialize DDR Priority Manager */
+ out_be32(&im->mddrc.prioman_config1, CONFIG_SYS_MDDRCGRP_PM_CFG1);
+ out_be32(&im->mddrc.prioman_config2, CONFIG_SYS_MDDRCGRP_PM_CFG2);
+ out_be32(&im->mddrc.hiprio_config, CONFIG_SYS_MDDRCGRP_HIPRIO_CFG);
+ out_be32(&im->mddrc.lut_table0_main_upper, CONFIG_SYS_MDDRCGRP_LUT0_MU);
+ out_be32(&im->mddrc.lut_table0_main_lower, CONFIG_SYS_MDDRCGRP_LUT0_ML);
+ out_be32(&im->mddrc.lut_table1_main_upper, CONFIG_SYS_MDDRCGRP_LUT1_MU);
+ out_be32(&im->mddrc.lut_table1_main_lower, CONFIG_SYS_MDDRCGRP_LUT1_ML);
+ out_be32(&im->mddrc.lut_table2_main_upper, CONFIG_SYS_MDDRCGRP_LUT2_MU);
+ out_be32(&im->mddrc.lut_table2_main_lower, CONFIG_SYS_MDDRCGRP_LUT2_ML);
+ out_be32(&im->mddrc.lut_table3_main_upper, CONFIG_SYS_MDDRCGRP_LUT3_MU);
+ out_be32(&im->mddrc.lut_table3_main_lower, CONFIG_SYS_MDDRCGRP_LUT3_ML);
+ out_be32(&im->mddrc.lut_table4_main_upper, CONFIG_SYS_MDDRCGRP_LUT4_MU);
+ out_be32(&im->mddrc.lut_table4_main_lower, CONFIG_SYS_MDDRCGRP_LUT4_ML);
+ out_be32(&im->mddrc.lut_table0_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT0_AU);
+ out_be32(&im->mddrc.lut_table0_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT0_AL);
+ out_be32(&im->mddrc.lut_table1_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT1_AU);
+ out_be32(&im->mddrc.lut_table1_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT1_AL);
+ out_be32(&im->mddrc.lut_table2_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT2_AU);
+ out_be32(&im->mddrc.lut_table2_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT2_AL);
+ out_be32(&im->mddrc.lut_table3_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT3_AU);
+ out_be32(&im->mddrc.lut_table3_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT3_AL);
+ out_be32(&im->mddrc.lut_table4_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT4_AU);
+ out_be32(&im->mddrc.lut_table4_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT4_AL);
+
+ /* Initialize MDDRC */
+ out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG);
+ out_be32(&im->mddrc.ddr_time_config0, CONFIG_SYS_MDDRC_TIME_CFG0);
+ out_be32(&im->mddrc.ddr_time_config1, CONFIG_SYS_MDDRC_TIME_CFG1);
+ out_be32(&im->mddrc.ddr_time_config2, CONFIG_SYS_MDDRC_TIME_CFG2);
+
+ /* Initialize DDR */
+ for (i = 0; i < 10; i++)
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
+
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM2);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM2);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EM3);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_EN_DLL);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_RFSH);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_INIT_DEV_OP);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_OCD_DEFAULT);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_PCHG_ALL);
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_MICRON_NOP);
+
+ /* Start MDDRC */
+ out_be32(&im->mddrc.ddr_time_config0, CONFIG_SYS_MDDRC_TIME_CFG0_RUN);
+ out_be32(&im->mddrc.ddr_sys_config, CONFIG_SYS_MDDRC_SYS_CFG_RUN);
+
+ return msize;
+}
+
+phys_size_t initdram(int board_type)
+{
+ return get_ram_size(0, fixed_sdram());
+}
+
+int misc_init_r(void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ u32 val;
+
+ /*
+ * Optimize access to profibus chip (VPC3) on the local bus
+ */
+
+ /*
+ * Select 1:1 for LPC_DIV
+ */
+ val = in_be32(&im->clk.scfr[0]) & ~SCFR1_LPC_DIV_MASK;
+ out_be32(&im->clk.scfr[0], val | (0x1 << SCFR1_LPC_DIV_SHIFT));
+
+ /*
+ * Configure LPC Chips Select Deadcycle Control Register
+ * CS0 - device can drive data 2 clock cycle(s) after CS deassertion
+ * CS1 - device can drive data 1 clock cycle(s) after CS deassertion
+ */
+ clrbits_be32(&im->lpc.cs_dccr, 0x000000ff);
+ setbits_be32(&im->lpc.cs_dccr, (0x00 << 4) | (0x01 << 0));
+
+ /*
+ * Configure LPC Chips Select Holdcycle Control Register
+ * CS0 - data is valid 2 clock cycle(s) after CS deassertion
+ * CS1 - data is valid 1 clock cycle(s) after CS deassertion
+ */
+ clrbits_be32(&im->lpc.cs_hccr, 0x000000ff);
+ setbits_be32(&im->lpc.cs_hccr, (0x00 << 4) | (0x01 << 0));
+
+ return 0;
+}
+
+static iopin_t ioregs_init[] = {
+ /* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
+ {
+ offsetof(struct ioctrl512x, io_control_spdif_txclk), 3, 0,
+ IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC1=FEC_COL Sets Next 15 to FEC pads */
+ {
+ offsetof(struct ioctrl512x, io_control_psc0_0), 15, 0,
+ IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC1=SELECT LPC_CS1 */
+ {
+ offsetof(struct ioctrl512x, io_control_lpc_cs1), 1, 0,
+ IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC5_2 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc5_2), 1, 0,
+ IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC5_3 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc5_3), 1, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC7_3 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc7_3), 1, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC9_0 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc9_0), 3, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC10_0 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc10_0), 3, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC10_3 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc10_3), 1, 0,
+ IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC11_0 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc11_0), 4, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC0=SELECT IRQ0 */
+ {
+ offsetof(struct ioctrl512x, io_control_irq0), 4, 0,
+ IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ }
+};
+
+static iopin_t rev2_silicon_pci_ioregs_init[] = {
+ /* FUNC0=PCI Sets next 54 to PCI pads */
+ {
+ offsetof(struct ioctrl512x, io_control_pci_ad31), 54, 0,
+ IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_DS(0)
+ }
+};
+
+int checkboard(void)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ u32 spridr;
+
+ puts("Board: MECP_5123\n");
+
+ /*
+ * Initialize function mux & slew rate IO inter alia on IO
+ * Pins
+ */
+ iopin_initialize(ioregs_init, ARRAY_SIZE(ioregs_init));
+
+ spridr = in_be32(&im->sysconf.spridr);
+ if (SVR_MJREV(spridr) >= 2)
+ iopin_initialize(rev2_silicon_pci_ioregs_init, 1);
+
+ return 0;
+}
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+ fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */