Add support for Korat PPC440EPx board

These patches add support for the PPC440EPx-based "Korat" board to U-Boot. They are based primarily on support for the Sequoia board.

Signed-off-by Larry Johnson <[email protected]>

---
 MAINTAINERS            |    4 +
 MAKEALL                |    1 +
 Makefile               |    3 +
 board/korat/Makefile   |   51 ++++
 board/korat/config.mk  |   37 +++
 board/korat/init.S     |   80 +++++
 board/korat/korat.c    |  761
++++++++++++++++++++++++++++++++++++++++++++++++ board/korat/u-boot.lds | 
145 +++++++++
 8 files changed, 1082 insertions(+), 0 deletions(-)
 create mode 100644 board/korat/Makefile
 create mode 100644 board/korat/config.mk
 create mode 100644 board/korat/init.S
 create mode 100644 board/korat/korat.c
 create mode 100644 board/korat/u-boot.lds

MAINTAINERS +4 -0

index bf0ebb1..0238d2e 100644
@@ -204,6 +204,10 @@ Murray Jensen <[email protected]>
 	cogent_mpc8260		MPC8260
 	hymod			MPC8260
 
+Larry Johnson <[email protected]>
+
+	korat			PPC440EPx
+
 Brad Kemp <[email protected]>
 
 	ppmc8260		MPC8260

MAKEALL +1 -0

index fb53a91..97e3891 100755
@@ -191,6 +191,7 @@ LIST_4xx="		\
 	katmai		\
 	kilauea		\
 	kilauea_nand	\
+	korat		\
 	luan		\
 	lwmon5		\
 	makalu		\

Makefile +3 -0

index c73d4cf..c127bcf 100644
@@ -1231,6 +1231,9 @@ haleakala_nand_config: unconfig
 	@echo "TEXT_BASE = 0x01000000" > $(obj)board/amcc/kilauea/config.tmp
 	@echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk
 
+korat_config:	unconfig
+	@$(MKCONFIG) $(@:_config=) ppc ppc4xx korat
+
 luan_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc ppc4xx luan amcc
 

board/korat/Makefile new file +51 -0

new file mode 100644
index 0000000..fa19e6f
@@ -0,0 +1,51 @@
+#
+# (C) Copyright 2002-2007
+# Wolfgang Denk, DENX Software Engineering, wd at 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	= $(BOARD).o
+SOBJS	= init.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################

board/korat/config.mk new file +37 -0

new file mode 100644
index 0000000..39966e0
@@ -0,0 +1,37 @@
+#
+# (C) Copyright 2002
+# Wolfgang Denk, DENX Software Engineering, wd at 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
+#
+#
+# Korat (PPC440EPx) board
+#
+
+TEXT_BASE = 0xFFFA0000
+
+PLATFORM_CPPFLAGS += -DCONFIG_440=1
+
+ifeq ($(debug),1)
+PLATFORM_CPPFLAGS += -DDEBUG
+endif
+
+ifeq ($(dbcr),1)
+PLATFORM_CPPFLAGS += -DCFG_INIT_DBCR=0x8cff0000
+endif

board/korat/init.S new file +26 -0

new file mode 100644
index 0000000..bd0e8b4
@@ -0,0 +1,80 @@
+/*
+ *
+ * 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 <ppc_asm.tmpl>
+#include <asm-ppc/mmu.h>
+#include <config.h>
+
+/*************************************************************************

* + * TLB TABLE
+ *
+ * This table is used by the cpu boot code to setup the initial tlb
+ * entries. Rather than make broad assumptions in the cpu source tree,
+ * this table lets each board set things up however they like.
+ *
+ * Pointer to the table is returned in r1
+ *
+ *************************************************************************/

board/korat/init.S new file +8 -0

+    .section .bootpg,"ax"
+    .globl tlbtab
+
+tlbtab:
+	tlbtab_start
+
+	/*
+	 * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to

use the + * speed up boot process. It is patched after relocation to
enable SA_I + */

board/korat/init.S new file +1 -0

+	tlbentry( CFG_BOOT_BASE_ADDR, SZ_256M, CFG_BOOT_BASE_ADDR, 1,

AC_R|AC_W|AC_X|SA_G ) +

board/korat/init.S new file +8 -0

+	/*
+	 * TLB entries for SDRAM are not needed on this platform.  They are
+	 * generated dynamically in the SPD DDR2 detection routine.
+	 */
+
+#ifdef CFG_INIT_RAM_DCACHE
+	/* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
+	tlbentry( CFG_INIT_RAM_ADDR, SZ_64K, CFG_INIT_RAM_ADDR, 0,

AC_R|AC_W|AC_X|SA_G ) +#endif

board/korat/init.S new file +3 -0

+
+	/* TLB-entry for PCI Memory */
+	tlbentry( CFG_PCI_MEMBASE, SZ_256M, CFG_PCI_MEMBASE, 1,

AC_R|AC_W|SA_G|SA_I ) + tlbentry( CFG_PCI_MEMBASE1, SZ_256M,
CFG_PCI_MEMBASE1, 1, AC_R|AC_W|SA_G|SA_I ) + tlbentry( CFG_PCI_MEMBASE2,
SZ_256M, CFG_PCI_MEMBASE2, 1, AC_R|AC_W|SA_G|SA_I ) + tlbentry(
CFG_PCI_MEMBASE3, SZ_256M, CFG_PCI_MEMBASE3, 1, AC_R|AC_W|SA_G|SA_I ) +

board/korat/init.S new file +17 -0

+	/* TLB-entry for EBC */
+	tlbentry( CFG_CPLD_BASE, SZ_1K, CFG_CPLD_BASE, 1, AC_R|AC_W|SA_G|SA_I )
+
+	/* TLB-entry for Internal Registers & OCM */
+	/* I wonder why this must be executable -- lrj at acm.org 2007-10-08 */
+	tlbentry( 0xE0000000, SZ_16M, 0xE0000000, 0,  AC_R|AC_W|AC_X|SA_I )
+
+	/*TLB-entry PCI registers*/
+	tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1,  AC_R|AC_W|SA_G|SA_I )
+
+	/* TLB-entry for peripherals */
+	tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_R|AC_W|SA_G|SA_I)
+
+	/* TLB-entry PCI IO Space - from sr at denx.de */
+	tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_R|AC_W|SA_G|SA_I)
+
+	tlbtab_end

board/korat/korat.c new file +36 -0

new file mode 100644
index 0000000..7cb9ee1
@@ -0,0 +1,761 @@
+/*
+ * (C) Copyright 2007
+ * Larry Johnson, lrj at acm.org
+ *
+ * (C) Copyright 2006
+ * Stefan Roese, DENX Software Engineering, sr at denx.de.
+ *
+ * (C) Copyright 2006
+ * Jacqueline Pira-Ferriol, AMCC/IBM, jpira-ferriol at fr.ibm.com
+ * Alain Saurel,	    AMCC/IBM, alain.saurel at fr.ibm.com
+ *
+ * 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/processor.h>
+#include <asm-ppc/io.h>
+#include <i2c.h>
+#include <ppc440.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH

chips */ +

board/korat/korat.c new file +97 -0

+ulong flash_get_size(ulong base, int banknum);
+
+int board_early_init_f(void)
+{
+	u32 sdr0_pfc1, sdr0_pfc2;
+	u32 gpio0_ir;
+	u32 reg;
+	int eth;
+
+	mtdcr(ebccfga, xbcfg);
+	mtdcr(ebccfgd, 0xb8400000);
+
+	/*--------------------------------------------------------------------
+	 * Setup the GPIO pins
+	 *
+	 * Korat GPIO usage:
+	 *
+	 *                   Init.
+	 * Pin    Source I/O value Function
+	 * ------ ------ --- ----- ---------------------------------
+	 * GPIO00  Alt1  I/O   x   PerAddr07
+	 * GPIO01  Alt1  I/O   x   PerAddr06
+	 * GPIO02  Alt1  I/O   x   PerAddr05
+	 * GPIO03  GPIO   x    x   GPIO03 to expansion bus connector
+	 * GPIO04  GPIO   x    x   GPIO04 to expansion bus connector
+	 * GPIO05  GPIO   x    x   GPIO05 to expansion bus connector
+	 * GPIO06  Alt1   O    x   PerCS1 (2nd NOR flash)
+	 * GPIO07  Alt1   O    x   PerCS2 (CPLD)
+	 * GPIO08  Alt1   O    x   PerCS3 to expansion bus connector
+	 * GPIO09  Alt1   O    x   PerCS4 to expansion bus connector
+	 * GPIO10  Alt1   O    x   PerCS5 to expansion bus connector
+	 * GPIO11  Alt1   I    x   PerErr
+	 * GPIO12  GPIO   O    0   ATMega !Reset
+	 * GPIO13  GPIO   O    1   SPI Atmega !SS
+	 * GPIO14  GPIO   O    1   Write protect EEPROM #1 (0xA8)
+	 * GPIO15  GPIO   O    0   CPU Run LED !On
+	 * GPIO16  Alt1   O    x   GMC1TxD0
+	 * GPIO17  Alt1   O    x   GMC1TxD1
+	 * GPIO18  Alt1   O    x   GMC1TxD2
+	 * GPIO19  Alt1   O    x   GMC1TxD3
+	 * GPIO20  Alt1   O    x   RejectPkt0
+	 * GPIO21  Alt1   O    x   RejectPkt1
+	 * GPIO22  GPIO   I    x   PGOOD_DDR
+	 * GPIO23  Alt1   O    x   SCPD0
+	 * GPIO24  Alt1   O    x   GMC0TxD2
+	 * GPIO25  Alt1   O    x   GMC0TxD3
+	 * GPIO26  GPIO? I/O   x   IIC0SDA (selected in SDR0_PFC4)
+	 * GPIO27  GPIO   O    0   PHY #0 1000BASE-X
+	 * GPIO28  GPIO   O    0   PHY #1 1000BASE-X
+	 * GPIO29  GPIO   I    x   Test jumper !Present
+	 * GPIO30  GPIO   I    x   SFP module #0 !Present
+	 * GPIO31  GPIO   I    x   SFP module #1 !Present
+	 *
+	 * GPIO32  GPIO   O    1   SFP module #0 Tx !Enable
+	 * GPIO33  GPIO   O    1   SFP module #1 Tx !Enable
+	 * GPIO34  Alt2   I    x   !UART1_CTS
+	 * GPIO35  Alt2   O    x   !UART1_RTS
+	 * GPIO36  Alt1   I    x   !UART0_CTS
+	 * GPIO37  Alt1   O    x   !UART0_RTS
+	 * GPIO38  Alt2   O    x   UART1_Tx
+	 * GPIO39  Alt2   I    x   UART1_Rx
+	 * GPIO40  Alt1   I    x   IRQ0 (Ethernet 0)
+	 * GPIO41  Alt1   I    x   IRQ1 (Ethernet 1)
+	 * GPIO42  Alt1   I    x   IRQ2 (PCI interrupt)
+	 * GPIO43  Alt1   I    x   IRQ3 (System Alert from CPLD)
+	 * GPIO44  xxxx   x    x   (grounded through pulldown)
+	 * GPIO45  GPIO   O    0   PHY #0 Enable
+	 * GPIO46  GPIO   O    0   PHY #1 Enable
+	 * GPIO47  GPIO   I    x   Reset switch !Pressed
+	 * GPIO48  GPIO   I    x   Shutdown switch !Pressed
+	 * GPIO49  xxxx   x    x   (reserved for trace port)
+	 *   .      .     .    .               .
+	 *   .      .     .    .               .
+	 *   .      .     .    .               .
+	 * GPIO63  xxxx   x    x   (reserved for trace port)
+	 *-------------------------------------------------------------------*/
+
+	out_be32((u32 *) GPIO0_OR, 0x00060000);
+	out_be32((u32 *) GPIO1_OR, 0xC0000000);
+
+	out_be32((u32 *) GPIO0_OSRL, 0x54055400);
+	out_be32((u32 *) GPIO0_OSRH, 0x55015000);
+	out_be32((u32 *) GPIO1_OSRL, 0x02180000);
+	out_be32((u32 *) GPIO1_OSRH, 0x00000000);
+
+	out_be32((u32 *) GPIO0_TSRL, 0x54055500);
+	out_be32((u32 *) GPIO0_TSRH, 0x00015000);
+	out_be32((u32 *) GPIO1_TSRL, 0x00000000);
+	out_be32((u32 *) GPIO1_TSRH, 0x00000000);
+
+	out_be32((u32 *) GPIO0_TCR, 0x000FF0D8);
+	out_be32((u32 *) GPIO1_TCR, 0xD6060000);
+
+	out_be32((u32 *) GPIO0_ISR1L, 0x54000100);
+	out_be32((u32 *) GPIO0_ISR1H, 0x00500000);
+	out_be32((u32 *) GPIO1_ISR1L, 0x00405500);
+	out_be32((u32 *) GPIO1_ISR1H, 0x00000000);

These patches add support for the PPC440EPx-based "Korat" board to U-Boot. They are based primarily on support for the Sequoia board.

Just for your information: The LWMON5 has a complete GPIO setup via the CFG_4xx_GPIO_TABLE define in the board config file. This is much easier to maintain. I suggest you change this GPIO configuration at some time to use this method. For now I will accept this version since it is tested.

And yes, this should be done for Sequoia too at some time. Patches as always welcome. ;)

Best regards,
Stefan

=====================================================================
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office at denx.de
=====================================================================

Thanks for the hint; I'll take a look at this. Are you also interested in Sequoia patches, for example, to use the new common Denali data-eye search code?