From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefan Roese <sr@denx.de>
Date: Thu, 27 Dec 2007 16:21:58 +0100
Subject: [U-Boot-Users] [PATCH 9/9] Add support for Korat PPC440EPx board
In-Reply-To: <476D70BA.3060807@arlinx.com>
References: <476D70BA.3060807@arlinx.com>
Message-ID: <200712271621.58805.sr@denx.de>
List-Id: <u-boot.lists.denx.de>
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To: u-boot@lists.denx.de

On Saturday 22 December 2007, Larry Johnson wrote:
> 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 <lrj@acm.org>
> ---
>  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
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index bf0ebb1..0238d2e 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -204,6 +204,10 @@ Murray Jensen <Murray.Jensen@csiro.au>
>  	cogent_mpc8260		MPC8260
>  	hymod			MPC8260
>
> +Larry Johnson <lrj@acm.org>
> +
> +	korat			PPC440EPx
> +
>  Brad Kemp <Brad.Kemp@seranoa.com>
>
>  	ppmc8260		MPC8260
> diff --git a/MAKEALL b/MAKEALL
> index fb53a91..97e3891 100755
> --- a/MAKEALL
> +++ b/MAKEALL
> @@ -191,6 +191,7 @@ LIST_4xx="		\
>  	katmai		\
>  	kilauea		\
>  	kilauea_nand	\
> +	korat		\
>  	luan		\
>  	lwmon5		\
>  	makalu		\
> diff --git a/Makefile b/Makefile
> index c73d4cf..c127bcf 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -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
>
> diff --git a/board/korat/Makefile b/board/korat/Makefile
> new file mode 100644
> index 0000000..fa19e6f
> --- /dev/null
> +++ b/board/korat/Makefile
> @@ -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 $(obj).depend
> +
> +#########################################################################
> diff --git a/board/korat/config.mk b/board/korat/config.mk
> new file mode 100644
> index 0000000..39966e0
> --- /dev/null
> +++ b/board/korat/config.mk
> @@ -0,0 +1,37 @@
> +#
> +# (C) Copyright 2002
> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
> +#
> +# See file CREDITS for list of people who contributed to this
> +# project.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation; either version 2 of
> +# the License, or (at your option) any later version.
> +#
> +# This program is distributed in the hope that it will be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write to the Free Software
> +# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> +# MA 02111-1307 USA
> +#
> +#
> +# Korat (PPC440EPx) board
> +#
> +
> +TEXT_BASE = 0xFFFA0000
> +
> +PLATFORM_CPPFLAGS += -DCONFIG_440=1
> +
> +ifeq ($(debug),1)
> +PLATFORM_CPPFLAGS += -DDEBUG
> +endif
> +
> +ifeq ($(dbcr),1)
> +PLATFORM_CPPFLAGS += -DCFG_INIT_DBCR=0x8cff0000
> +endif
> diff --git a/board/korat/init.S b/board/korat/init.S
> new file mode 100644
> index 0000000..bd0e8b4
> --- /dev/null
> +++ b/board/korat/init.S
> @@ -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
> + *
> +
> *************************************************************************/
> +    .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 +	 */
> +	tlbentry( CFG_BOOT_BASE_ADDR, SZ_256M, CFG_BOOT_BASE_ADDR, 1,
> AC_R|AC_W|AC_X|SA_G ) +
> +	/*
> +	 * 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
> +
> +	/* 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 ) +
> +	/* 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
> diff --git a/board/korat/korat.c b/board/korat/korat.c
> new file mode 100644
> index 0000000..7cb9ee1
> --- /dev/null
> +++ b/board/korat/korat.c
> @@ -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    */ +
> +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);
> +
> +	out_be32((u32 *) GPIO0_ISR2L, 0x00000000);
> +	out_be32((u32 *) GPIO0_ISR2H, 0x00000000);
> +	out_be32((u32 *) GPIO1_ISR2L, 0x04010000);
> +	out_be32((u32 *) GPIO1_ISR2H, 0x00000000);
> +
> +	out_be32((u32 *) GPIO0_ISR3L, 0x00000000);
> +	out_be32((u32 *) GPIO0_ISR3H, 0x00000000);
> +	out_be32((u32 *) GPIO1_ISR3L, 0x00000000);
> +	out_be32((u32 *) GPIO1_ISR3H, 0x00000000);

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

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