APM821xx: Add bluestone board support

Add support code for bluestone board wth APM821XX 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@apm.com
Signed-off-by: Stefan Roese <sr@denx.de>

MAINTAINERS

@@ -501,6 +501,10 @@ Detlev Zundel <dzu@denx.de>
 
 	inka4x0		MPC5200
 
+Tirumala Marri <tmarri@apm.com>
+
+	bluestone       APM821XX
+
 -------------------------------------------------------------------------
 
 Unknown / orphaned boards:

board/amcc/bluestone/Makefile

@@ -0,0 +1,52 @@
+#
+# Copyright (c) 2010, Applied Micro Circuits Corporation
+# Author: Tirumala R Marri <tmarri@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
+
+#########################################################################

board/amcc/bluestone/bluestone.c

@@ -0,0 +1,111 @@
+/*
+ * Bluestone board support
+ *
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri@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 <asm/apm821xx.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/ppc4xx-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#");
+
+	puts("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;
+}

board/amcc/bluestone/config.mk

@@ -0,0 +1,40 @@
+#
+# Copyright (c) 2010, Applied Micro Circuits Corporation
+# Author: Tirumala R Marri <tmarri@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 APM821XX 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

board/amcc/bluestone/init.S

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri@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>
+#include <asm/ppc4xx.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 0 */
+	tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR,
+	4, AC_RWX | SA_G)
+
+	/* 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

boards.cfg

@@ -184,6 +184,7 @@ t3corp		powerpc	ppc4xx
 zeus		powerpc	ppc4xx
 acadia		powerpc	ppc4xx		-		amcc
 bamboo		powerpc	ppc4xx		-		amcc
+bluestone	powerpc ppc4xx		-		amcc
 bubinga		powerpc	ppc4xx		-		amcc
 ebony		powerpc	ppc4xx		-		amcc
 katmai		powerpc	ppc4xx		-		amcc

include/configs/bluestone.h

@@ -0,0 +1,178 @@
+/*
+ * bluestone.h - configuration for Bluestone (APM821XX)
+ *
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Tirumala R Marri <tmarri@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_APM821XX		1	/* APM821XX series    */
+#define CONFIG_HOSTNAME		bluestone
+
+#define CONFIG_4xx		1	/* ... PPC4xx family */
+#define CONFIG_440		1
+/*
+ * 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_AHB_BASE		0xE2000000 /* internal AHB peripherals*/
+
+#define CONFIG_SYS_SRAM_SIZE            (256 << 10)
+/*
+ * 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 */
+
+/*
+ * 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 */
+
+/* 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             */
+
+/*
+ * Serial Port
+ */
+#define CONFIG_CONS_INDEX	1	/* Use UART0			*/
+
+/*
+ * I2C
+ */
+#define CONFIG_SYS_I2C_SPEED		400000	/* I2C speed            */
+#define CONFIG_SYS_I2C_MULTI_EEPROMS
+#define CONFIG_SYS_I2C_EEPROM_ADDR		0x54
+#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
+/* PHY address, See schematics  */
+#define CONFIG_PHY_ADDR			0x1f
+/* reset phy upon startup       */
+#define CONFIG_PHY_RESET		1
+/* 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	(EBC_CFG_LE_LOCK    |	\
+				 EBC_CFG_PTD_ENABLE   |	\
+				 EBC_CFG_RTC_2048PERCLK | \
+				 EBC_CFG_ATC_HI | \
+				 EBC_CFG_DTC_HI | \
+				 EBC_CFG_CTC_HI | \
+				 EBC_CFG_OEO_PREVIOUS)
+/* 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)
+
+
+#endif /* __CONFIG_H */