arm, davinci: add cam_enc_4xx support

- DM368 SOC
- booting with spl not with UBL from TI
- before loading u-boot from NAND into RAM, test
  the RAM with the post memory test. If error
  is found, switch all LEDs on and halt system.
- SPI Flash
  Dataflash Typ: M25PE80
- Ethernet DM9161BI
- MMC
- USB

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

5 files changed, 628 insertions, 0 deletions

diff --git a/board/ait/cam_enc_4xx/Makefile b/board/ait/cam_enc_4xx/Makefile
new file mode 100644
index 0000000..2b22124
--- /dev/null
+++ b/board/ait/cam_enc_4xx/Makefile
@@ -0,0 +1,46 @@
+#
+# (C) Copyright 2000, 2001, 2002
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+#
+# 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).o
+
+COBJS	:= $(BOARD).o
+SOBJS	:=
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+#########################################################################
+# This is for $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/ait/cam_enc_4xx/cam_enc_4xx.c b/board/ait/cam_enc_4xx/cam_enc_4xx.c
new file mode 100644
index 0000000..1351358
--- /dev/null
+++ b/board/ait/cam_enc_4xx/cam_enc_4xx.c
@@ -0,0 +1,446 @@
+/*
+ * Copyright (C) 2009 Texas Instruments Incorporated
+ *
+ * Copyright (C) 2011
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <common.h>
+#include <linux/mtd/nand.h>
+#include <nand.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/nand_defs.h>
+#include <asm/arch/davinci_misc.h>
+#ifdef CONFIG_DAVINCI_MMC
+#include <mmc.h>
+#include <asm/arch/sdmmc_defs.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifndef CONFIG_SPL_BUILD
+int dram_init(void)
+{
+	/* dram_init must store complete ramsize in gd->ram_size */
+	gd->ram_size = get_ram_size(
+			(void *)CONFIG_SYS_SDRAM_BASE,
+			CONFIG_MAX_RAM_BANK_SIZE);
+	return 0;
+}
+
+void dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_dram[0].size = gd->ram_size;
+}
+
+static struct davinci_timer *timer =
+	(struct davinci_timer *)DAVINCI_TIMER3_BASE;
+
+static unsigned long get_timer_val(void)
+{
+	unsigned long now = readl(&timer->tim34);
+
+	return now;
+}
+
+static void stop_timer(void)
+{
+	writel(0x0, &timer->tcr);
+	return;
+}
+
+int checkboard(void)
+{
+	printf("Board: AIT CAM ENC 4XX\n");
+	return 0;
+}
+
+int board_init(void)
+{
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	return 0;
+}
+
+#ifdef CONFIG_DRIVER_TI_EMAC
+int board_eth_init(bd_t *bis)
+{
+	davinci_emac_initialize();
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_NAND_DAVINCI
+static int
+davinci_std_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
+				   uint8_t *buf, int page)
+{
+	struct nand_chip *this = mtd->priv;
+	int i, eccsize = chip->ecc.size;
+	int eccbytes = chip->ecc.bytes;
+	int eccsteps = chip->ecc.steps;
+	uint8_t *p = buf;
+	uint8_t *oob = chip->oob_poi;
+
+	chip->cmdfunc(mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask);
+
+	chip->read_buf(mtd, oob, mtd->oobsize);
+
+	chip->cmdfunc(mtd, NAND_CMD_READ0, 0x0, page & this->pagemask);
+
+
+	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		int stat;
+
+		chip->ecc.hwctl(mtd, NAND_ECC_READ);
+		chip->read_buf(mtd, p, eccsize);
+		chip->ecc.hwctl(mtd, NAND_ECC_READSYN);
+
+		if (chip->ecc.prepad)
+			oob += chip->ecc.prepad;
+
+		stat = chip->ecc.correct(mtd, p, oob, NULL);
+
+		if (stat == -1)
+			mtd->ecc_stats.failed++;
+		else
+			mtd->ecc_stats.corrected += stat;
+
+		oob += eccbytes;
+
+		if (chip->ecc.postpad)
+			oob += chip->ecc.postpad;
+	}
+
+	/* Calculate remaining oob bytes */
+	i = mtd->oobsize - (oob - chip->oob_poi);
+	if (i)
+		chip->read_buf(mtd, oob, i);
+
+	return 0;
+}
+
+static void davinci_std_write_page_syndrome(struct mtd_info *mtd,
+				    struct nand_chip *chip, const uint8_t *buf)
+{
+	unsigned char davinci_ecc_buf[NAND_MAX_OOBSIZE];
+	struct nand_chip *this = mtd->priv;
+	int i, eccsize = chip->ecc.size;
+	int eccbytes = chip->ecc.bytes;
+	int eccsteps = chip->ecc.steps;
+	int chunk = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad;
+	int offset = 0;
+	const uint8_t *p = buf;
+	uint8_t *oob = chip->oob_poi;
+
+	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
+		chip->write_buf(mtd, p, eccsize);
+
+		/* Calculate ECC without prepad */
+		chip->ecc.calculate(mtd, p, oob + chip->ecc.prepad);
+
+		if (chip->ecc.prepad) {
+			offset = (chip->ecc.steps - eccsteps) * chunk;
+			memcpy(&davinci_ecc_buf[offset], oob, chip->ecc.prepad);
+			oob += chip->ecc.prepad;
+		}
+
+		offset = ((chip->ecc.steps - eccsteps) * chunk) +
+				chip->ecc.prepad;
+		memcpy(&davinci_ecc_buf[offset], oob, eccbytes);
+		oob += eccbytes;
+
+		if (chip->ecc.postpad) {
+			offset = ((chip->ecc.steps - eccsteps) * chunk) +
+					chip->ecc.prepad + eccbytes;
+			memcpy(&davinci_ecc_buf[offset], oob,
+				chip->ecc.postpad);
+			oob += chip->ecc.postpad;
+		}
+	}
+
+	/*
+	 * Write the sparebytes into the page once
+	 * all eccsteps have been covered
+	 */
+	for (i = 0; i < mtd->oobsize; i++)
+		writeb(davinci_ecc_buf[i], this->IO_ADDR_W);
+
+	/* Calculate remaining oob bytes */
+	i = mtd->oobsize - (oob - chip->oob_poi);
+	if (i)
+		chip->write_buf(mtd, oob, i);
+}
+
+static int davinci_std_write_oob_syndrome(struct mtd_info *mtd,
+				   struct nand_chip *chip, int page)
+{
+	int pos, status = 0;
+	const uint8_t *bufpoi = chip->oob_poi;
+
+	pos = mtd->writesize;
+
+	chip->cmdfunc(mtd, NAND_CMD_SEQIN, pos, page);
+
+	chip->write_buf(mtd, bufpoi, mtd->oobsize);
+
+	chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+	status = chip->waitfunc(mtd, chip);
+
+	return status & NAND_STATUS_FAIL ? -1 : 0;
+}
+
+static int davinci_std_read_oob_syndrome(struct mtd_info *mtd,
+	struct nand_chip *chip, int page, int sndcmd)
+{
+	struct nand_chip *this = mtd->priv;
+	uint8_t *buf = chip->oob_poi;
+	uint8_t *bufpoi = buf;
+
+	chip->cmdfunc(mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask);
+
+	chip->read_buf(mtd, bufpoi, mtd->oobsize);
+
+	return 1;
+}
+
+static void nand_dm365evm_select_chip(struct mtd_info *mtd, int chip)
+{
+	struct nand_chip	*this = mtd->priv;
+	unsigned long		wbase = (unsigned long) this->IO_ADDR_W;
+	unsigned long		rbase = (unsigned long) this->IO_ADDR_R;
+
+	if (chip == 1) {
+		__set_bit(14, &wbase);
+		__set_bit(14, &rbase);
+	} else {
+		__clear_bit(14, &wbase);
+		__clear_bit(14, &rbase);
+	}
+	this->IO_ADDR_W = (void *)wbase;
+	this->IO_ADDR_R = (void *)rbase;
+}
+
+int board_nand_init(struct nand_chip *nand)
+{
+	davinci_nand_init(nand);
+	nand->select_chip = nand_dm365evm_select_chip;
+
+	return 0;
+}
+
+struct nand_ecc_ctrl org_ecc;
+static int notsaved = 1;
+
+static int nand_switch_hw_func(int mode)
+{
+	struct nand_chip *nand;
+	struct mtd_info *mtd;
+
+	if (nand_curr_device < 0 ||
+	    nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE ||
+	    !nand_info[nand_curr_device].name) {
+		printf("Error: Can't switch hw functions," \
+			" no devices available\n");
+		return -1;
+	}
+
+	mtd = &nand_info[nand_curr_device];
+	nand = mtd->priv;
+
+	if (mode == 0) {
+		printf("switching to uboot hw functions.\n");
+		memcpy(&nand->ecc, &org_ecc, sizeof(struct nand_ecc_ctrl));
+	} else {
+		/* RBL */
+		printf("switching to RBL hw functions.\n");
+		if (notsaved == 1) {
+			memcpy(&org_ecc, &nand->ecc,
+				sizeof(struct nand_ecc_ctrl));
+			notsaved = 0;
+		}
+		nand->ecc.mode = NAND_ECC_HW_SYNDROME;
+		nand->ecc.prepad = 6;
+		nand->ecc.read_page = davinci_std_read_page_syndrome;
+		nand->ecc.write_page = davinci_std_write_page_syndrome;
+		nand->ecc.read_oob = davinci_std_read_oob_syndrome;
+		nand->ecc.write_oob = davinci_std_write_oob_syndrome;
+	}
+	return mode;
+}
+
+static int hwmode;
+
+static int do_switch_ecc(cmd_tbl_t *cmdtp, int flag, int argc,
+		char *const argv[])
+{
+	if (argc != 2)
+		goto usage;
+	if (strncmp(argv[1], "rbl", 2) == 0)
+		hwmode = nand_switch_hw_func(1);
+	else if (strncmp(argv[1], "uboot", 2) == 0)
+		hwmode = nand_switch_hw_func(0);
+	else
+		goto usage;
+
+	return 0;
+
+usage:
+	printf("Usage: nandrbl %s\n", cmdtp->usage);
+	return 1;
+}
+
+U_BOOT_CMD(
+	nandrbl, 2, 1,	do_switch_ecc,
+	"switch between rbl/uboot NAND ECC calculation algorithm",
+	"[rbl/uboot] - Switch between rbl/uboot NAND ECC algorithm"
+);
+
+
+#endif /* #ifdef CONFIG_NAND_DAVINCI */
+
+#ifdef CONFIG_DAVINCI_MMC
+static struct davinci_mmc mmc_sd0 = {
+	.reg_base	= (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
+	.input_clk	= 121500000,
+	.host_caps	= MMC_MODE_4BIT,
+	.voltages	= MMC_VDD_32_33 | MMC_VDD_33_34,
+	.version	= MMC_CTLR_VERSION_2,
+};
+
+int board_mmc_init(bd_t *bis)
+{
+	int err;
+
+	/* Add slot-0 to mmc subsystem */
+	err = davinci_mmc_init(bis, &mmc_sd0);
+
+	return err;
+}
+#endif
+
+int board_late_init(void)
+{
+	struct davinci_gpio *gpio = davinci_gpio_bank45;
+
+	/* 24MHz InputClock / 15 prediv -> 1.6 MHz timer running */
+	while (get_timer_val() < 0x186a00)
+		;
+
+	/* 1 sec reached -> stop timer, clear all LED */
+	stop_timer();
+	clrbits_le32(&gpio->out_data, CONFIG_CAM_ENC_LED_MASK);
+	return 0;
+}
+
+void reset_phy(void)
+{
+	char *name = "GENERIC @ 0x00";
+
+	/* reset the phy */
+	miiphy_reset(name, 0x0);
+}
+
+#else /* #ifndef CONFIG_SPL_BUILD */
+static void cam_enc_4xx_set_all_led(void)
+{
+	struct davinci_gpio *gpio = davinci_gpio_bank45;
+
+	setbits_le32(&gpio->out_data, CONFIG_CAM_ENC_LED_MASK);
+}
+
+/*
+ * TIMER 0 is used for tick
+ */
+static struct davinci_timer *timer =
+	(struct davinci_timer *)DAVINCI_TIMER3_BASE;
+
+#define TIMER_LOAD_VAL	0xffffffff
+#define TIM_CLK_DIV	16
+
+static int cam_enc_4xx_timer_init(void)
+{
+	/* We are using timer34 in unchained 32-bit mode, full speed */
+	writel(0x0, &timer->tcr);
+	writel(0x0, &timer->tgcr);
+	writel(0x06 | ((TIM_CLK_DIV - 1) << 8), &timer->tgcr);
+	writel(0x0, &timer->tim34);
+	writel(TIMER_LOAD_VAL, &timer->prd34);
+	writel(2 << 22, &timer->tcr);
+	return 0;
+}
+
+void board_gpio_init(void)
+{
+	struct davinci_gpio *gpio;
+
+	cam_enc_4xx_set_all_led();
+	cam_enc_4xx_timer_init();
+	gpio = davinci_gpio_bank01;
+	clrbits_le32(&gpio->dir, ~0xfdfffffe);
+	/* clear LED D14 = GPIO25 */
+	clrbits_le32(&gpio->out_data, 0x02000000);
+	gpio = davinci_gpio_bank23;
+	clrbits_le32(&gpio->dir, ~0x5ff0afef);
+	/* set GPIO61 to 1 -> intern UART0 as Console */
+	setbits_le32(&gpio->out_data, 0x20000000);
+	/*
+	 * PHY out of reset GIO 50 = 1
+	 * NAND WP off GIO 51 = 1
+	 */
+	setbits_le32(&gpio->out_data, 0x000c0004);
+	gpio = davinci_gpio_bank45;
+	clrbits_le32(&gpio->dir, ~(0xdb2fffff) | CONFIG_CAM_ENC_LED_MASK);
+	/*
+	 * clear LED:
+	 * D17 = GPIO86
+	 * D11 = GPIO87
+	 * GPIO88
+	 * GPIO89
+	 * D13 = GPIO90
+	 * GPIO91
+	 */
+	clrbits_le32(&gpio->out_data, CONFIG_CAM_ENC_LED_MASK);
+	gpio = davinci_gpio_bank67;
+	clrbits_le32(&gpio->dir, ~0x000007ff);
+}
+
+/*
+ * functions for the post memory test.
+ */
+int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset)
+{
+	*vstart = CONFIG_SYS_SDRAM_BASE;
+	*size = PHYS_SDRAM_1_SIZE;
+	*phys_offset = 0;
+	return 0;
+}
+
+void arch_memory_failure_handle(void)
+{
+	cam_enc_4xx_set_all_led();
+	puts("mem failure\n");
+	while (1)
+		;
+}
+#endif
diff --git a/board/ait/cam_enc_4xx/config.mk b/board/ait/cam_enc_4xx/config.mk
new file mode 100644
index 0000000..b1f9b6c
--- /dev/null
+++ b/board/ait/cam_enc_4xx/config.mk
@@ -0,0 +1,15 @@
+#
+# 	AIT cam_enc_4xx board
+#	cam_enc_4xx board has 1 bank of 256 MB DDR RAM
+#	Physical Address: 8000'0000 to 9000'0000
+#
+# Linux Kernel is expected to be at 8000'8000, entry 8000'8000
+# (mem base + reserved)
+#
+
+#Provide at least 16MB spacing between us and the Linux Kernel image
+PAD_TO	:= 12320
+UBL_CONFIG = $(SRCTREE)/board/$(BOARDDIR)/ublimage.cfg
+ifndef CONFIG_SPL_BUILD
+ALL-y += $(obj)u-boot.ubl
+endif
diff --git a/board/ait/cam_enc_4xx/u-boot-spl.lds b/board/ait/cam_enc_4xx/u-boot-spl.lds
new file mode 100644
index 0000000..6f6e065
--- /dev/null
+++ b/board/ait/cam_enc_4xx/u-boot-spl.lds
@@ -0,0 +1,73 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
+ *
+ * (C) Copyright 2008
+ * Guennadi Liakhovetki, DENX Software Engineering, <lg@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
+ */
+
+MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE,\
+		LENGTH = CONFIG_SPL_MAX_SIZE }
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text      :
+	{
+	__start = .;
+	  arch/arm/cpu/arm926ejs/start.o	(.text)
+	  *(.text*)
+	} >.sram
+
+	. = ALIGN(4);
+	.rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } >.sram
+
+	. = ALIGN(4);
+	.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
+	. = ALIGN(4);
+	.rel.dyn : {
+		__rel_dyn_start = .;
+		*(.rel*)
+		__rel_dyn_end = .;
+	} >.sram
+
+	.dynsym : {
+		__dynsym_start = .;
+		*(.dynsym)
+	} >.sram
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start = .;
+		*(.bss*)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} >.sram
+
+	__image_copy_end = .;
+	_end = .;
+}
diff --git a/board/ait/cam_enc_4xx/ublimage.cfg b/board/ait/cam_enc_4xx/ublimage.cfg
new file mode 100644
index 0000000..95182ca
--- /dev/null
+++ b/board/ait/cam_enc_4xx/ublimage.cfg
@@ -0,0 +1,48 @@
+#
+# (C Copyright 2011
+# Heiko Schocher DENX Software Engineering hs@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. 51 Franklin Street Fifth Floor Boston,
+# MA 02110-1301 USA
+#
+# Refer doc/README.ublimage for more details about how-to configure
+# and create ublimage boot image
+#
+# The syntax is taken as close as possible with the kwbimage
+
+# UBL special mode : one of
+# safe (the board has no nand neither onenand)
+MODE	safe
+
+# Entry point address for the user bootloader (absolute address)
+# nand spl TEXT_BASE = 0x20 !!
+ENTRY	0x00000020
+
+# Number of pages (size of user bootloader in number of pages)
+# @ nand spl 6 pages
+PAGES	6
+
+# Block number where user bootloader is present
+# RBL starts always with block 1
+START_BLOCK	5
+
+# Page number where user bootloader is present
+# Page 0 is always UBL header
+START_PAGE	0
+
+LD_ADDR		0x20