[U-Boot] [PATCH v2 2/2] APM82xxx: Add bluestone board support

tmarri at apm.com tmarri at apm.com
Thu Sep 2 03:17:03 CEST 2010


From: Tirumala Marri <tmarri at apm.com>

Add support code for bluestone board wth APM82XXX processor based.
This patch includes early board init, misc init, configure EBC,
initializes UIC, MAKEALL, board.cfg and MAINTAINERS file.

Signed-off-by: Tirumala R Marri <tmarri at apm.com>
---
 V1:
  * Remove "All rights reserved" phrase from headers.
  * Add empty line which was removed.
  * Move EBC definititions to bluestone_config.h file
  * Remove reconfigure_EBC() function.
  * Remove unused CONFIG_SDRAM16BIT_OFFSET.
  * Remove unused CONFIG_SDRAM_INFO_EEPROM_ADDR.
  * Add empty lines in bluestone.c file.
  * Replacing AC_R | AC_W | AC_X with AC_RWX.
  * Remove changes to main Makefile
  * Remove NAND references from config file.
  * Squash some of the patches.

V2:
  * Missing space before "<".
  * SDR_AHB_CFG not used, remove.
  * boot device dfinitions are board specific ? removed.
  * APM82161_MASK not used, remove
  * set_mcsr() is already called in ddr init, no need to call here.
  * removed finding bootdevice function which is not used.
  * Add spaces in tlbentry() function.
  * Board early init function is empty remove.
  * Remove CONFIG_SYS_EXTSRAM_BASE.
  * Set CONFIG_SYS_FLASH_SIZE to 4MB
  * Remove CONFIG_SIZE_REDUCE & CONFIG_SECTOR_REDUCE.
  * Spaces around " >> " .
  * Correct the phy name CONFIG_M88E1111_PHY to CONFIG_RTL8211CL_PHY.
---
 MAINTAINERS                      |    3 +
 MAKEALL                          |    1 +
 board/amcc/bluestone/Makefile    |   52 ++++++++++++
 board/amcc/bluestone/bluestone.c |  111 ++++++++++++++++++++++++
 board/amcc/bluestone/config.mk   |   40 +++++++++
 board/amcc/bluestone/init.S      |   55 ++++++++++++
 boards.cfg                       |    1 +
 include/configs/bluestone.h      |  171 ++++++++++++++++++++++++++++++++++++++
 8 files changed, 434 insertions(+), 0 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 4b91b0f..ad7e598 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -253,6 +253,9 @@ Feng Kan <fkan at amcc.com>
 
 	redwood			PPC4xx
 
+Tirumala Marri <tmarri at apm.com>
+	bluestone	APM82XXX
+
 Brad Kemp <Brad.Kemp at seranoa.com>
 
 	ppmc8260	MPC8260
diff --git a/MAKEALL b/MAKEALL
index b34ae33..02d5c17 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -191,6 +191,7 @@ LIST_4xx="		\
 	ASH405		\
 	bamboo		\
 	bamboo_nand	\
+	bluestone	\
 	bubinga		\
 	CANBT		\
 	canyonlands	\
diff --git a/board/amcc/bluestone/Makefile b/board/amcc/bluestone/Makefile
new file mode 100644
index 0000000..41751c8
--- /dev/null
+++ b/board/amcc/bluestone/Makefile
@@ -0,0 +1,52 @@
+#
+# Copyright (c) 2010, Applied Micro Circuits Corporation
+# Author: Tirumala R Marri <tmarri at apm.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 $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).a
+
+COBJS-y	:= $(BOARD).o
+SOBJS	:= init.o
+
+COBJS   := $(COBJS-y)
+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 $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/amcc/bluestone/bluestone.c b/board/amcc/bluestone/bluestone.c
new file mode 100644
index 0000000..182038f
--- /dev/null
+++ b/board/amcc/bluestone/bluestone.c
@@ -0,0 +1,111 @@
+/*
+ * Bluestone board support
+ *
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri at apm.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 <ppc440.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <i2c.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/mmu.h>
+#include <asm/gpio.h>
+
+int board_early_init_f(void)
+{
+	/*
+	 * Setup the interrupt controller polarities, triggers, etc.
+	 */
+	mtdcr(UIC0SR, 0xffffffff);	/* clear all */
+	mtdcr(UIC0ER, 0x00000000);	/* disable all */
+	mtdcr(UIC0CR, 0x00000005);	/* ATI & UIC1 crit are critical */
+	mtdcr(UIC0PR, 0xffffffff);	/* per ref-board manual */
+	mtdcr(UIC0TR, 0x00000000);	/* per ref-board manual */
+	mtdcr(UIC0VR, 0x00000000);	/* int31 highest, base=0x000 */
+	mtdcr(UIC0SR, 0xffffffff);	/* clear all */
+
+	mtdcr(UIC1SR, 0xffffffff);	/* clear all */
+	mtdcr(UIC1ER, 0x00000000);	/* disable all */
+	mtdcr(UIC1CR, 0x00000000);	/* all non-critical */
+	mtdcr(UIC1PR, 0xffffffff);	/* per ref-board manual */
+	mtdcr(UIC1TR, 0x00000000);	/* per ref-board manual */
+	mtdcr(UIC1VR, 0x00000000);	/* int31 highest, base=0x000 */
+	mtdcr(UIC1SR, 0xffffffff);	/* clear all */
+
+	mtdcr(UIC2SR, 0xffffffff);	/* clear all */
+	mtdcr(UIC2ER, 0x00000000);	/* disable all */
+	mtdcr(UIC2CR, 0x00000000);	/* all non-critical */
+	mtdcr(UIC2PR, 0xffffffff);	/* per ref-board manual */
+	mtdcr(UIC2TR, 0x00000000);	/* per ref-board manual */
+	mtdcr(UIC2VR, 0x00000000);	/* int31 highest, base=0x000 */
+	mtdcr(UIC2SR, 0xffffffff);	/* clear all */
+
+	mtdcr(UIC3SR, 0xffffffff);	/* clear all */
+	mtdcr(UIC3ER, 0x00000000);	/* disable all */
+	mtdcr(UIC3CR, 0x00000000);	/* all non-critical */
+	mtdcr(UIC3PR, 0xffffffff);	/* per ref-board manual */
+	mtdcr(UIC3TR, 0x00000000);	/* per ref-board manual */
+	mtdcr(UIC3VR, 0x00000000);	/* int31 highest, base=0x000 */
+	mtdcr(UIC3SR, 0xffffffff);	/* clear all */
+
+	/*
+	 * Configure PFC (Pin Function Control) registers
+	 * UART0: 2 pins
+	 */
+	mtsdr(SDR0_PFC1, 0x0000000);
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	char *s = getenv("serial#");
+
+	printf("Board: Bluestone Evaluation Board");
+
+	if (s != NULL) {
+		puts(", serial# ");
+		puts(s);
+	}
+	putc('\n');
+
+	return 0;
+}
+
+int misc_init_r(void)
+{
+	u32 sdr0_srst1 = 0;
+
+	/* Setup PLB4-AHB bridge based on the system address map */
+	mtdcr(AHB_TOP, 0x8000004B);
+	mtdcr(AHB_BOT, 0x8000004B);
+
+	/*
+	 * The AHB Bridge core is held in reset after power-on or reset
+	 * so enable it now
+	 */
+	mfsdr(SDR0_SRST1, sdr0_srst1);
+	sdr0_srst1 &= ~SDR0_SRST1_AHB;
+	mtsdr(SDR0_SRST1, sdr0_srst1);
+
+	return 0;
+}
diff --git a/board/amcc/bluestone/config.mk b/board/amcc/bluestone/config.mk
new file mode 100644
index 0000000..13cd6c0
--- /dev/null
+++ b/board/amcc/bluestone/config.mk
@@ -0,0 +1,40 @@
+#
+# Copyright (c) 2010, Applied Micro Circuits Corporation
+# Author: Tirumala R Marri <tmarri at apm.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
+#
+# Applied Micro APM82XXX Evaluation board.
+#
+
+sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
+
+ifndef TEXT_BASE
+TEXT_BASE = 0xFFFA0000
+endif
+
+PLATFORM_CPPFLAGS += -DCONFIG_440=1
+
+ifeq ($(debug),1)
+PLATFORM_CPPFLAGS += -DDEBUG
+endif
+
+ifeq ($(dbcr),1)
+PLATFORM_CPPFLAGS += -DCONFIG_SYS_INIT_DBCR=0x8cff0000
+endif
diff --git a/board/amcc/bluestone/init.S b/board/amcc/bluestone/init.S
new file mode 100644
index 0000000..f5c9792
--- /dev/null
+++ b/board/amcc/bluestone/init.S
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri at apm.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 <ppc_asm.tmpl>
+#include <config.h>
+#include <asm/mmu.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
+
+	/* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
+	tlbentry(CONFIG_SYS_INIT_RAM_ADDR, SZ_4K, CONFIG_SYS_INIT_RAM_ADDR,
+			0, AC_RWX | SA_G)
+
+	/* TLB-entry for OCM */
+	tlbentry(CONFIG_SYS_OCM_BASE, SZ_64K, 0x00040000, 4,
+			AC_RWX | SA_I)
+
+	/* TLB-entry for Local Configuration registers => peripherals */
+	tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_16K,
+			CONFIG_SYS_PERIPHERAL_BASE, 4, AC_RWX | SA_IG)
+	tlbtab_end
diff --git a/boards.cfg b/boards.cfg
index 69c6897..48001d3 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -196,6 +196,7 @@ redwood		powerpc	ppc4xx		-		amcc
 taihu		powerpc	ppc4xx		-		amcc
 taishan		powerpc	ppc4xx		-		amcc
 yucca		powerpc	ppc4xx		-		amcc
+bluestone 	powerpc ppc4xx		-		amcc
 AP1000		powerpc	ppc4xx		ap1000		amirix
 CRAYL1		powerpc	ppc4xx		L1		cray
 ADCIOP		powerpc	ppc4xx		adciop		esd
diff --git a/include/configs/bluestone.h b/include/configs/bluestone.h
new file mode 100644
index 0000000..0ddd6c2
--- /dev/null
+++ b/include/configs/bluestone.h
@@ -0,0 +1,171 @@
+/*
+ * bluestone.h - configuration for Blouestone (APM82XXX)
+ *
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri at apm.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
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * High Level Configuration Options
+ */
+#define CONFIG_APM82181		1	/* Specific APM82XXX  */
+#define CONFIG_APM82XXX		1	/* APM82XXX series    */
+#define CONFIG_HOSTNAME		bluestone
+
+#define CONFIG_440		1
+#define CONFIG_4xx		1	/* ... PPC4xx family */
+
+/*
+ * Include common defines/options for all AMCC eval boards
+ */
+#include "amcc-common.h"
+#define CONFIG_SYS_CLK_FREQ	50000000
+
+#define CONFIG_BOARD_TYPES		1	/* support board types */
+#define CONFIG_BOARD_EARLY_INIT_F	1       /* Call board_early_init_f */
+#define CONFIG_MISC_INIT_R		1       /* Call misc_init_r */
+
+/*
+ * Base addresses -- Note these are effective addresses where the
+ * actual resources get mapped (not physical addresses)
+ */
+/* EBC stuff */
+/* later mapped to this addr */
+#define CONFIG_SYS_FLASH_BASE		0xFFF00000
+#define CONFIG_SYS_FLASH_SIZE		(4 << 20)	/* 1MB usable */
+
+/* EBC Boot Space: 0xFF000000 */
+#define CONFIG_SYS_BOOT_BASE_ADDR	0xFF000000
+#define CONFIG_SYS_OCM_BASE		0xE3000000 /* OCM: 32k             */
+#define CONFIG_SYS_SRAM_BASE		0xE8000000 /* SRAM: 256k           */
+#define CONFIG_SYS_PERIPHERAL_BASE	0xEF600000 /* internal peripherals */
+#define CONFIG_SYS_AHB_BASE		0xE2000000 /* internal AHB peripherals*/
+
+/*
+ * Initial RAM & stack pointer (placed in OCM)
+ */
+#define CONFIG_SYS_INIT_RAM_ADDR	CONFIG_SYS_OCM_BASE	/* OCM    */
+#define CONFIG_SYS_INIT_RAM_END		(4 << 10)
+#define CONFIG_SYS_GBL_DATA_SIZE	256	/* num bytes initial data */
+#define CONFIG_SYS_GBL_DATA_OFFSET	\
+	(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
+
+/*
+ * Environment
+ */
+/*
+ * Define here the location of the environment variables (FLASH).
+ */
+#define	CONFIG_ENV_IS_IN_FLASH	1	/* use FLASH for environment vars */
+#define CONFIG_SYS_NOR_CS	0	/* NOR chip connected to CSx */
+
+/*
+ * FLASH related
+ */
+#define CONFIG_SYS_FLASH_CFI	/* The flash is CFI compatible  */
+#define CONFIG_FLASH_CFI_DRIVER	/* Use common CFI driver        */
+#define CONFIG_SYS_FLASH_CFI_WIDTH      FLASH_CFI_8BIT
+#define CONFIG_SYS_FLASH_BANKS_LIST    {CONFIG_SYS_FLASH_BASE}
+/* max number of memory banks           */
+#define CONFIG_SYS_MAX_FLASH_BANKS	1
+/* max number of sectors on one chip    */
+#define CONFIG_SYS_MAX_FLASH_SECT	80
+/* Timeout for Flash Erase (in ms)      */
+#define CONFIG_SYS_FLASH_ERASE_TOUT	120000
+/* Timeout for Flash Write (in ms)      */
+#define CONFIG_SYS_FLASH_WRITE_TOUT	500
+/* use buffered writes (20x faster)     */
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1
+/* print 'E' for empty sector on flinfo */
+#define CONFIG_SYS_FLASH_EMPTY_INFO
+#ifdef CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_SECT_SIZE	0x10000	/* size of one complete sector  */
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
+#define	CONFIG_ENV_SIZE		0x4000	/* Total Size of Environment Sector   */
+/* Address and size of Redundant Environment Sector	*/
+#define CONFIG_ENV_ADDR_REDUND	(CONFIG_ENV_ADDR - CONFIG_ENV_SECT_SIZE)
+#define CONFIG_ENV_SIZE_REDUND	(CONFIG_ENV_SIZE)
+#endif /* CONFIG_ENV_IS_IN_FLASH */
+
+/* NOR Flash */
+#define CONFIG_SYS_EBC_PB0AP 	(EBC_BXAP_BME_DISABLED   | \
+				EBC_BXAP_TWT_ENCODE(64)  | \
+				EBC_BXAP_BCE_DISABLE    | \
+				EBC_BXAP_BCT_2TRANS     | \
+				EBC_BXAP_CSN_ENCODE(1)  | \
+				EBC_BXAP_OEN_ENCODE(2)  | \
+				EBC_BXAP_WBN_ENCODE(2)  | \
+				EBC_BXAP_WBF_ENCODE(2)  | \
+				EBC_BXAP_TH_ENCODE(7)   | \
+				EBC_BXAP_SOR_DELAYED    | \
+				EBC_BXAP_BEM_WRITEONLY  | \
+				EBC_BXAP_PEN_DISABLED)
+/* Peripheral Bank Configuration Register - EBC_BxCR */
+#define CONFIG_SYS_EBC_PB0CR	\
+			(EBC_BXCR_BAS_ENCODE(CONFIG_SYS_FLASH_BASE) | \
+			EBC_BXCR_BS_1MB                | \
+			EBC_BXCR_BU_RW                  | \
+			EBC_BXCR_BW_8BIT)
+
+/* SDRAM */
+#define CONFIG_SPD_EEPROM       1       /* Use SPD EEPROM for setup     */
+#define SPD_EEPROM_ADDRESS	{0x53, 0x51}	/* SPD i2c spd addresses */
+#define CONFIG_PPC4xx_DDR_AUTOCALIBRATION       /* IBM DDR autocalibration */
+#define CONFIG_AUTOCALIB      "silent\0"	/* default is non-verbose    */
+#define CONFIG_DDR_ECC		1	/* with ECC support             */
+
+/*
+ * I2C
+ */
+#define CONFIG_SYS_I2C_SPEED		400000	/* I2C speed            */
+#define CONFIG_SYS_I2C_MULTI_EEPROMS
+#define CONFIG_SYS_I2C_EEPROM_ADDR		(0xa8 >> 1)
+#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN		1
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS	3
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS	5	/* Data sheet */
+
+/* I2C bootstrap EEPROM */
+#define CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR	0x52
+#define CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET	0
+#define CONFIG_4xx_CONFIG_BLOCKSIZE		16
+
+/*
+ * Ethernet
+ */
+#define CONFIG_IBM_EMAC4_V4    1
+#define CONFIG_EMAC_PHY_MODE  EMAC_PHY_MODE_NONE_RGMII
+#define CONFIG_HAS_ETH0
+#define CONFIG_RTL8211CL_PHY
+/* PHY address, See schematics  */
+#define CONFIG_PHY_ADDR			0x1f
+/* reset phy upon startup       */
+#define CONFIG_PHY_RESET		1
+#define CONFIG_PHY_RESET_R
+/* Include GbE speed/duplex detection */
+#define CONFIG_PHY_GIGE			1
+#define CONFIG_PHY_DYNAMIC_ANEG		1
+/*
+ * External Bus Controller (EBC) Setup
+ **/
+#define CONFIG_SYS_EBC_CFG		0xB8400000	/*  EBC0_CFG */
+
+#endif /* __CONFIG_H */
-- 
1.6.1.rc3



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