Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

6 files changed, 508 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/board/amcc/ebony/Makefile b/qemu/roms/u-boot/board/amcc/ebony/Makefile
new file mode 100644
index 000000000..5876486f5
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/ebony/Makefile
@@ -0,0 +1,9 @@
+#
+# (C) Copyright 2002-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	= ebony.o flash.o
+extra-y	+= init.o
diff --git a/qemu/roms/u-boot/board/amcc/ebony/README b/qemu/roms/u-boot/board/amcc/ebony/README
new file mode 100644
index 000000000..4df00b356
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/ebony/README
@@ -0,0 +1,136 @@
+			   AMCC Ebony Board
+
+		    Last Update: September 12, 2002
+=======================================================================
+
+This file contains some handy info regarding U-Boot and the AMCC
+Ebony evaluation board. See the README.ppc440 for additional
+information.
+
+
+SWITCH SETTINGS & JUMPERS
+==========================
+
+Here's what I've been using successfully. If you feel inclined to
+change things ... please read the docs!
+
+DIPSW   U46         U80
+------------------------
+SW 1    off         on
+SW 2    on          on
+SW 3    on          on
+SW 4    off         on
+SW 5    on          off
+SW 6    on          on
+SW 7    on          off
+SW 8    on          off
+
+J41: strapped
+J42: open
+
+All others are factory default.
+
+
+I2C probe
+=====================
+
+The i2c utilities have been tested on both Rev B. and Rev C. and
+look good. The CONFIG_SYS_I2C_NOPROBES macro is defined to prevent
+probing the CDCV850 clock controller at address 0x69 (since reading
+it causes the i2c implementation to misbehave. The output of
+'i2c probe' should look like this (assuming you are only using a single
+SO-DIMM:
+
+=> i2c probe
+Valid chip addresses: 50 53 54
+Excluded chip addresses: 69
+
+
+GETTING OUT OF I2C TROUBLE
+===========================
+
+If you're like me ... you may have screwed up your bootstrap serial
+eeprom ... or worse, your SPD eeprom when experimenting with the
+i2c commands. If so, here are some ideas on how to get out of
+trouble:
+
+Serial bootstrap eeprom corruption:
+-----------------------------------
+Power down the board and set the following straps:
+
+J41 - open
+J42 - strapped
+
+This will select the default sys0 and sys1 settings (the serial
+eeproms are not used). Then power up the board and fix the serial
+eeprom using the 'i2c mm' command. Here are the values I currently
+use:
+
+=> i2c md 50 0 10
+0000: bf a2 04 01 ae 94 11 00 00 00 00 00 00 00 00 00    ................
+
+=> i2c md 54 0 10
+0000: 8f b3 24 01 4d 14 11 00 00 00 00 00 00 00 00 00    ..$.M...........
+
+Once you have the eeproms set correctly change the
+J41/J42 straps as you desire.
+
+SPD eeprom corruption:
+------------------------
+I've corrupted the SPD eeprom several times ... perhaps too much coffee
+and not enough presence of mind ;-). By default, the ebony code uses
+the SPD to initialize the DDR SDRAM control registers. So if the SPD
+eeprom is corrupted, U-Boot will never get into ram. Here's how I got
+out of this situation:
+
+0. First, _before_ playing with the i2c utilities, do an 'i2c probe', then
+use 'i2c md' to capture the various device contents to a file. Some day
+you may be glad you did this ... trust me :-). Otherwise try the
+following:
+
+1. In the include/configs/EBONY.h file find the line that defines
+the CONFIG_SPD_EEPROM macro and undefine it. E.g:
+
+#undef CONFIG_SPD_EEPROM
+
+This will make the code use default SDRAM control register
+settings without using the SPD eeprom.
+
+2. Rebuild U-Boot
+
+3. Load the new U-Boot image and reboot ebony.
+
+4. Repair the SPD eeprom using the 'i2c mm' command. Here's the eeprom
+contents that work with the default SO-DIMM that comes with the
+ebony board (micron 8VDDT164AG-265A1). Note: these are probably
+_not_ the factory settings ... but they work.
+
+=> i2c md 53 0 10 80
+0000: 80 08 07 0c 0a 01 40 00 04 75 75 00 80 08 00 01    ......@..uu.....
+0010: 0e 04 0c 01 02 20 00 a0 75 00 00 50 3c 50 2d 20    ..... ..u..P<P-
+0020: 90 90 50 50 00 00 00 00 00 41 4b 34 32 75 00 00    ..PP.....AK42u..
+0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9c    ................
+0040: 2c 00 00 00 00 00 00 00 08 38 56 44 44 54 31 36    ,........8VDDT16
+0050: 36 34 41 47 2d 32 36 35 41 31 20 01 00 01 2c 63    64AG-265A1 ...,c
+0060: 22 25 ab 00 00 00 00 00 00 00 00 00 00 00 00 00    "%..............
+0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
+
+
+PCI DOUBLE-ENUMERATION WOES
+===========================
+
+If you're not using PCI-X cards and are simply using 32-bit and/or
+33 MHz cards via extenders and the like, you may notice that the
+initial pci scan reports various devices twice ... and configuration
+does not succeed (one or more devices are enumerated twice). To correct
+this we replaced the 2K ohm resistor on the IDSEL line(s) with a
+22 ohm resistor and the problem went away. This change hasn't broken
+anything yet -- use at your own risk.
+
+We never tested anything other than 33 MHz/32-bit cards. If you have
+the chance to do this, please let me know how things turn out :-)
+
+
+Regards,
+--Scott
+<smcnutt@artesyncp.com>
diff --git a/qemu/roms/u-boot/board/amcc/ebony/config.mk b/qemu/roms/u-boot/board/amcc/ebony/config.mk
new file mode 100644
index 000000000..f18b09710
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/ebony/config.mk
@@ -0,0 +1,16 @@
+#
+# (C) Copyright 2002
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+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/qemu/roms/u-boot/board/amcc/ebony/ebony.c b/qemu/roms/u-boot/board/amcc/ebony/ebony.c
new file mode 100644
index 000000000..eb424489e
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/ebony/ebony.c
@@ -0,0 +1,151 @@
+/*
+ *  Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <spd_sdram.h>
+
+#define BOOT_SMALL_FLASH	32	/* 00100000 */
+#define FLASH_ONBD_N		2	/* 00000010 */
+#define FLASH_SRAM_SEL		1	/* 00000001 */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+long int fixed_sdram(void);
+
+int board_early_init_f(void)
+{
+	uint reg;
+	unsigned char *fpga_base = (unsigned char *)CONFIG_SYS_FPGA_BASE;
+	unsigned char status;
+
+	/*--------------------------------------------------------------------
+	 * Setup the external bus controller/chip selects
+	 *-------------------------------------------------------------------*/
+	mtdcr(EBC0_CFGADDR, EBC0_CFG);
+	reg = mfdcr(EBC0_CFGDATA);
+	mtdcr(EBC0_CFGDATA, reg | 0x04000000);	/* Set ATC */
+
+	mtebc(PB1AP, 0x02815480);	/* NVRAM/RTC */
+	mtebc(PB1CR, 0x48018000);	/* BA=0x480 1MB R/W 8-bit */
+	mtebc(PB7AP, 0x01015280);	/* FPGA registers */
+	mtebc(PB7CR, 0x48318000);	/* BA=0x483 1MB R/W 8-bit */
+
+	/* read FPGA_REG0  and set the bus controller */
+	status = *fpga_base;
+	if ((status & BOOT_SMALL_FLASH) && !(status & FLASH_ONBD_N)) {
+		mtebc(PB0AP, 0x9b015480);	/* FLASH/SRAM */
+		mtebc(PB0CR, 0xfff18000);	/* BAS=0xfff 1MB R/W 8-bit */
+		mtebc(PB2AP, 0x9b015480);	/* 4MB FLASH */
+		mtebc(PB2CR, 0xff858000);	/* BAS=0xff8 4MB R/W 8-bit */
+	} else {
+		mtebc(PB0AP, 0x9b015480);	/* 4MB FLASH */
+		mtebc(PB0CR, 0xffc58000);	/* BAS=0xffc 4MB R/W 8-bit */
+
+		/* set CS2 if FLASH_ONBD_N == 0 */
+		if (!(status & FLASH_ONBD_N)) {
+			mtebc(PB2AP, 0x9b015480);	/* FLASH/SRAM */
+			mtebc(PB2CR, 0xff818000);	/* BAS=0xff8 4MB R/W 8-bit */
+		}
+	}
+
+	/*--------------------------------------------------------------------
+	 * Setup the interrupt controller polarities, triggers, etc.
+	 *-------------------------------------------------------------------*/
+	mtdcr(UIC0SR, 0xffffffff);	/* clear all */
+	mtdcr(UIC0ER, 0x00000000);	/* disable all */
+	mtdcr(UIC0CR, 0x00000009);	/* SMI & UIC1 crit are critical */
+	mtdcr(UIC0PR, 0xfffffe13);	/* per ref-board manual */
+	mtdcr(UIC0TR, 0x01c00008);	/* per ref-board manual */
+	mtdcr(UIC0VR, 0x00000001);	/* 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, 0xffffe0ff);	/* per ref-board manual */
+	mtdcr(UIC1TR, 0x00ffc000);	/* per ref-board manual */
+	mtdcr(UIC1VR, 0x00000001);	/* int31 highest, base=0x000 */
+	mtdcr(UIC1SR, 0xffffffff);	/* clear all */
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
+
+	printf("Board: Ebony - AMCC PPC440GP Evaluation Board");
+	if (i > 0) {
+		puts(", serial# ");
+		puts(buf);
+	}
+	putc('\n');
+
+	return (0);
+}
+
+phys_size_t initdram(int board_type)
+{
+	long dram_size = 0;
+
+#if defined(CONFIG_SPD_EEPROM)
+	dram_size = spd_sdram();
+#else
+	dram_size = fixed_sdram();
+#endif
+	return dram_size;
+}
+
+#if !defined(CONFIG_SPD_EEPROM)
+/*************************************************************************
+ *  fixed sdram init -- doesn't use serial presence detect.
+ *
+ *  Assumes:    128 MB, non-ECC, non-registered
+ *              PLB @ 133 MHz
+ *
+ ************************************************************************/
+long int fixed_sdram(void)
+{
+	uint reg;
+
+	/*--------------------------------------------------------------------
+	 * Setup some default
+	 *------------------------------------------------------------------*/
+	mtsdram(SDRAM0_UABBA, 0x00000000);	/* ubba=0 (default)             */
+	mtsdram(SDRAM0_SLIO, 0x00000000);	/* rdre=0 wrre=0 rarw=0         */
+	mtsdram(SDRAM0_DEVOPT, 0x00000000);	/* dll=0 ds=0 (normal)          */
+	mtsdram(SDRAM0_WDDCTR, 0x00000000);	/* wrcp=0 dcd=0                 */
+	mtsdram(SDRAM0_CLKTR, 0x40000000);	/* clkp=1 (90 deg wr) dcdt=0    */
+
+	/*--------------------------------------------------------------------
+	 * Setup for board-specific specific mem
+	 *------------------------------------------------------------------*/
+	/*
+	 * Following for CAS Latency = 2.5 @ 133 MHz PLB
+	 */
+	mtsdram(SDRAM0_B0CR, 0x000a4001);	/* SDBA=0x000 128MB, Mode 3, enabled */
+	mtsdram(SDRAM0_TR0, 0x410a4012);	/* WR=2  WD=1 CL=2.5 PA=3 CP=4 LD=2 */
+	/* RA=10 RD=3                       */
+	mtsdram(SDRAM0_TR1, 0x8080082f);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x02f   */
+	mtsdram(SDRAM0_RTR, 0x08200000);	/* Rate 15.625 ns @ 133 MHz PLB     */
+	mtsdram(SDRAM0_CFG1, 0x00000000);	/* Self-refresh exit, disable PM    */
+	udelay(400);		/* Delay 200 usecs (min)            */
+
+	/*--------------------------------------------------------------------
+	 * Enable the controller, then wait for DCEN to complete
+	 *------------------------------------------------------------------*/
+	mtsdram(SDRAM0_CFG0, 0x86000000);	/* DCEN=1, PMUD=1, 64-bit           */
+	for (;;) {
+		mfsdram(SDRAM0_MCSTS, reg);
+		if (reg & 0x80000000)
+			break;
+	}
+
+	return (128 * 1024 * 1024);	/* 128 MB                           */
+}
+#endif				/* !defined(CONFIG_SPD_EEPROM) */
diff --git a/qemu/roms/u-boot/board/amcc/ebony/flash.c b/qemu/roms/u-boot/board/amcc/ebony/flash.c
new file mode 100644
index 000000000..5740a5623
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/ebony/flash.c
@@ -0,0 +1,155 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
+ * Add support for Am29F016D and dynamic switch setting.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * Modified 4/5/2001
+ * Wait for completion of each sector erase command issued
+ * 4/5/2001
+ * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
+ */
+
+#include <common.h>
+#include <asm/ppc4xx.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+#undef DEBUG
+#ifdef DEBUG
+#define DEBUGF(x...) printf(x)
+#else
+#define DEBUGF(x...)
+#endif				/* DEBUG */
+
+#define     BOOT_SMALL_FLASH        32	/* 00100000 */
+#define     FLASH_ONBD_N            2	/* 00000010 */
+#define     FLASH_SRAM_SEL          1	/* 00000001 */
+
+#define     BOOT_SMALL_FLASH_VAL    4
+#define     FLASH_ONBD_N_VAL        2
+#define     FLASH_SRAM_SEL_VAL      1
+
+static unsigned long flash_addr_table[8][CONFIG_SYS_MAX_FLASH_BANKS] = {
+	{0xffc00000, 0xffe00000, 0xff880000},	/* 0:000: configuraton 3 */
+	{0xffc00000, 0xffe00000, 0xff800000},	/* 1:001: configuraton 4 */
+	{0xffc00000, 0xffe00000, 0x00000000},	/* 2:010: configuraton 7 */
+	{0xffc00000, 0xffe00000, 0x00000000},	/* 3:011: configuraton 8 */
+	{0xff800000, 0xffa00000, 0xfff80000},	/* 4:100: configuraton 1 */
+	{0xff800000, 0xffa00000, 0xfff00000},	/* 5:101: configuraton 2 */
+	{0xffc00000, 0xffe00000, 0x00000000},	/* 6:110: configuraton 5 */
+	{0xffc00000, 0xffe00000, 0x00000000}	/* 7:111: configuraton 6 */
+};
+
+/*
+ * include common flash code (for amcc boards)
+ */
+#include "../common/flash.c"
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size(vu_long * addr, flash_info_t * info);
+
+/*
+ * Override the weak default mapping function with a board specific one
+ */
+u32 flash_get_bank_size(int cs, int idx)
+{
+	u8 reg = in_8((void *)CONFIG_SYS_FPGA_BASE);
+
+	if ((reg & BOOT_SMALL_FLASH) && !(reg & FLASH_ONBD_N)) {
+		/*
+		 * cs0: small flash (512KiB)
+		 * cs2: 2 * big flash (2 * 2MiB)
+		 */
+		if (cs == 0)
+			return flash_info[2].size;
+		if (cs == 2)
+			return flash_info[0].size + flash_info[1].size;
+	} else {
+		/*
+		 * cs0: 2 * big flash (2 * 2MiB)
+		 * cs2: small flash (512KiB)
+		 */
+		if (cs == 0)
+			return flash_info[0].size + flash_info[1].size;
+		if (cs == 2)
+			return flash_info[2].size;
+	}
+
+	return 0;
+}
+
+unsigned long flash_init(void)
+{
+	unsigned long total_b = 0;
+	unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
+	unsigned char *fpga_base = (unsigned char *)CONFIG_SYS_FPGA_BASE;
+	unsigned char switch_status;
+	unsigned short index = 0;
+	int i;
+
+	/* read FPGA base register FPGA_REG0 */
+	switch_status = *fpga_base;
+
+	/* check the bitmap of switch status */
+	if (switch_status & BOOT_SMALL_FLASH) {
+		index += BOOT_SMALL_FLASH_VAL;
+	}
+	if (switch_status & FLASH_ONBD_N) {
+		index += FLASH_ONBD_N_VAL;
+	}
+	if (switch_status & FLASH_SRAM_SEL) {
+		index += FLASH_SRAM_SEL_VAL;
+	}
+
+	DEBUGF("\n");
+	DEBUGF("FLASH: Index: %d\n", index);
+
+	/* Init: no FLASHes known */
+	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
+		flash_info[i].flash_id = FLASH_UNKNOWN;
+		flash_info[i].sector_count = -1;
+		flash_info[i].size = 0;
+
+		/* check whether the address is 0 */
+		if (flash_addr_table[index][i] == 0) {
+			continue;
+		}
+
+		/* call flash_get_size() to initialize sector address */
+		size_b[i] = flash_get_size((vu_long *)
+					   flash_addr_table[index][i],
+					   &flash_info[i]);
+		flash_info[i].size = size_b[i];
+		if (flash_info[i].flash_id == FLASH_UNKNOWN) {
+			printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
+			       i, size_b[i], size_b[i] << 20);
+			flash_info[i].sector_count = -1;
+			flash_info[i].size = 0;
+		}
+
+		/* Monitor protection ON by default */
+		(void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
+				    CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
+				    &flash_info[2]);
+#ifdef CONFIG_ENV_IS_IN_FLASH
+		(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
+				    CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
+				    &flash_info[2]);
+		(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
+				    CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
+				    &flash_info[2]);
+#endif
+
+		total_b += flash_info[i].size;
+	}
+
+	return total_b;
+}
diff --git a/qemu/roms/u-boot/board/amcc/ebony/init.S b/qemu/roms/u-boot/board/amcc/ebony/init.S
new file mode 100644
index 000000000..904e64898
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/ebony/init.S
@@ -0,0 +1,41 @@
+/*
+*  Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com>
+ * SPDX-License-Identifier:	GPL-2.0+
+*/
+
+#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
+
+	tlbentry(0xf0000000, SZ_256M, 0xf0000000, 1, AC_RWX | SA_IG)
+
+	/*
+	 * TLB entries for SDRAM are not needed on this platform.
+	 * They are dynamically generated in the SPD DDR(2) detection
+	 * routine.
+	 */
+
+	tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_256M, 0x40000000, 1, AC_RW | SA_IG)
+	tlbentry(CONFIG_SYS_ISRAM_BASE, SZ_4K, 0x80000000, 0, AC_RWX)
+	tlbentry(CONFIG_SYS_ISRAM_BASE + 0x1000, SZ_4K, 0x80001000, 0, AC_RWX)
+	tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 2, AC_RW | SA_IG)
+	tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x00000000, 3, AC_RW | SA_IG)
+	tlbtab_end