Re: [U-Boot] [PATCH v5 3/3] mx28evk: Add initial support for MX28EVK board

Add initial support for Freescale MX28EVK board.

Tested boot via SD card and by loading a kernel via TFTP through the FEC interface.

Signed-off-by: Fabio Estevam fabio.estevam@freescale.com

• For correct operation of saving environment variables into the SD card,

the following patch is needed: http://lists.denx.de/pipermail/u-boot/2011-November/111448.html

Changes since v4:

• No changes

Changes since v3:

• Fix Copyright in mx28evk.h
• Call mx28_dram_init from dram_init

Changes since v2:

• Generate the patch again due to error in applying unrelated changes

Changes since v1:

• Read the MAC from fuses
• Use tabs instead of space in u-boot.bd
• Use puts instead of print
• Factor out mac reading function
• Factor out ddr size calculation function
• Use GENERATED_GBL_DATA_SIZE
• Protect CONFIG_ENV_IS_IN_MMC

MAINTAINERS | 1 + board/freescale/mx28evk/Makefile | 49 ++++++++++ board/freescale/mx28evk/iomux.c | 138 +++++++++++++++++++++++++++++ board/freescale/mx28evk/mx28evk.c | 170 +++++++++++++++++++++++++++++++++++ board/freescale/mx28evk/u-boot.bd | 14 +++ boards.cfg | 1 + include/configs/mx28evk.h | 176 +++++++++++++++++++++++++++++++++++++ 7 files changed, 549 insertions(+), 0 deletions(-) create mode 100644 board/freescale/mx28evk/Makefile create mode 100644 board/freescale/mx28evk/iomux.c create mode 100644 board/freescale/mx28evk/mx28evk.c create mode 100644 board/freescale/mx28evk/u-boot.bd create mode 100644 include/configs/mx28evk.h

diff --git a/MAINTAINERS b/MAINTAINERS index a56ca10..72e1089 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -639,6 +639,7 @@ Kristoffer Ericson kristoffer.ericson@gmail.com Fabio Estevam fabio.estevam@freescale.com

mx25pdk i.MX25

• mx28evk i.MX28 mx31pdk i.MX31 mx53ard i.MX53 mx53smd i.MX53

diff --git a/board/freescale/mx28evk/Makefile b/board/freescale/mx28evk/Makefile new file mode 100644 index 0000000..7459107 --- /dev/null +++ b/board/freescale/mx28evk/Makefile @@ -0,0 +1,49 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@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).o

+ifndef CONFIG_SPL_BUILD +COBJS := mx28evk.o +else +COBJS := iomux.o +endif

+SRCS := $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS))

+$(LIB): $(obj).depend $(OBJS)

• $(call cmd_link_o_target, $(OBJS))

+all: $(ALL)

+#########################################################################

+# defines $(obj).depend target +include $(SRCTREE)/rules.mk

+sinclude $(obj).depend

+######################################################################### diff --git a/board/freescale/mx28evk/iomux.c b/board/freescale/mx28evk/iomux.c new file mode 100644 index 0000000..904e3f3 --- /dev/null +++ b/board/freescale/mx28evk/iomux.c @@ -0,0 +1,138 @@ +/*

• • Freescale MX28EVK IOMUX setup
• • Copyright (C) 2011 Marek Vasut marek.vasut@gmail.com
• • on behalf of DENX Software Engineering GmbH
• • 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.
• */

+#include <common.h> +#include <config.h> +#include <asm/io.h> +#include <asm/arch/iomux-mx28.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/sys_proto.h>

+#define MUX_CONFIG_SSP0 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP) +#define MUX_CONFIG_ENET (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP) +#define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL)

+const iomux_cfg_t iomux_setup[] = {

• /* DUART */
• MX28_PAD_PWM0__DUART_RX,
• MX28_PAD_PWM1__DUART_TX,
• /* MMC0 */
• MX28_PAD_SSP0_DATA0__SSP0_D0 | MUX_CONFIG_SSP0,
• MX28_PAD_SSP0_DATA1__SSP0_D1 | MUX_CONFIG_SSP0,
• MX28_PAD_SSP0_DATA2__SSP0_D2 | MUX_CONFIG_SSP0,
• MX28_PAD_SSP0_DATA3__SSP0_D3 | MUX_CONFIG_SSP0,
• MX28_PAD_SSP0_DATA4__SSP0_D4 | MUX_CONFIG_SSP0,
• MX28_PAD_SSP0_DATA5__SSP0_D5 | MUX_CONFIG_SSP0,
• MX28_PAD_SSP0_DATA6__SSP0_D6 | MUX_CONFIG_SSP0,
• MX28_PAD_SSP0_DATA7__SSP0_D7 | MUX_CONFIG_SSP0,
• MX28_PAD_SSP0_CMD__SSP0_CMD | MUX_CONFIG_SSP0,
• MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT |

• (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
  

• MX28_PAD_SSP0_SCK__SSP0_SCK |

• (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
  

• /* write protect */
• MX28_PAD_SSP1_SCK__GPIO_2_12,
• /* MMC0 slot power enable */
• MX28_PAD_PWM3__GPIO_3_28 |

• (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
  

• /* FEC0 */
• MX28_PAD_ENET0_MDC__ENET0_MDC | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_MDIO__ENET0_MDIO | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MUX_CONFIG_ENET,
• MX28_PAD_ENET_CLK__CLKCTRL_ENET | MUX_CONFIG_ENET,
• /* FEC0 Enable */
• MX28_PAD_SSP1_DATA3__GPIO_2_15 |

• (MXS_PAD_12MA | MXS_PAD_3V3),
  

• /* FEC0 Reset */
• MX28_PAD_ENET0_RX_CLK__GPIO_4_13 |

• (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
  

• /* FEC1 */
• MX28_PAD_ENET0_COL__ENET1_TX_EN | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_CRS__ENET1_RX_EN | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_RXD2__ENET1_RXD0 | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_RXD3__ENET1_RXD1 | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_TXD2__ENET1_TXD0 | MUX_CONFIG_ENET,
• MX28_PAD_ENET0_TXD3__ENET1_TXD1 | MUX_CONFIG_ENET,
• /* EMI */
• MX28_PAD_EMI_D00__EMI_DATA0 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D01__EMI_DATA1 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D02__EMI_DATA2 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D03__EMI_DATA3 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D04__EMI_DATA4 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D05__EMI_DATA5 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D06__EMI_DATA6 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D07__EMI_DATA7 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D08__EMI_DATA8 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D09__EMI_DATA9 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D10__EMI_DATA10 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D11__EMI_DATA11 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D12__EMI_DATA12 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D13__EMI_DATA13 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D14__EMI_DATA14 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_D15__EMI_DATA15 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_ODT0__EMI_ODT0 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_ODT1__EMI_ODT1 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_DDR_OPEN_FB__EMI_DDR_OPEN_FEEDBACK | MUX_CONFIG_EMI,
• MX28_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI,
• MX28_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_DDR_OPEN__EMI_DDR_OPEN | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A00__EMI_ADDR0 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A01__EMI_ADDR1 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A02__EMI_ADDR2 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A03__EMI_ADDR3 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A04__EMI_ADDR4 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A05__EMI_ADDR5 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A06__EMI_ADDR6 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A07__EMI_ADDR7 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A08__EMI_ADDR8 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A09__EMI_ADDR9 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A10__EMI_ADDR10 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A11__EMI_ADDR11 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A12__EMI_ADDR12 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A13__EMI_ADDR13 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_A14__EMI_ADDR14 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_BA2__EMI_BA2 | MUX_CONFIG_EMI,
• MX28_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI,
• MX28_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI,
• MX28_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI,
• MX28_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI,
• MX28_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI,
• MX28_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI,

+};

+void board_init_ll(void) +{

• mx28_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));

+} diff --git a/board/freescale/mx28evk/mx28evk.c b/board/freescale/mx28evk/mx28evk.c new file mode 100644 index 0000000..542e806 --- /dev/null +++ b/board/freescale/mx28evk/mx28evk.c @@ -0,0 +1,170 @@ +/*

• • Freescale MX28EVK board
• • (C) Copyright 2011 Freescale Semiconductor, Inc.
• • Author: Fabio Estevam fabio.estevam@freescale.com
• • Based on m28evk.c:
• • Copyright (C) 2011 Marek Vasut marek.vasut@gmail.com
• • on behalf of DENX Software Engineering GmbH
• • 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.
• */

+#include <common.h> +#include <asm/gpio.h> +#include <asm/io.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/iomux-mx28.h> +#include <asm/arch/clock.h> +#include <asm/arch/sys_proto.h> +#include <linux/mii.h> +#include <miiphy.h> +#include <netdev.h> +#include <errno.h>

+DECLARE_GLOBAL_DATA_PTR;

+/*

• • Functions
• */

+int board_early_init_f(void) +{

• /* IO0 clock at 480MHz */
• mx28_set_ioclk(MXC_IOCLK0, 480000);
• /* IO1 clock at 480MHz */
• mx28_set_ioclk(MXC_IOCLK1, 480000);
• /* SSP0 clock at 96MHz */
• mx28_set_sspclk(MXC_SSPCLK0, 96000, 0);
• /* SSP2 clock at 96MHz */
• mx28_set_sspclk(MXC_SSPCLK2, 96000, 0);
• return 0;

+}

+int dram_init(void) +{

• mx28_dram_init();
• return 0;

+}

+int board_init(void) +{

• /* Adress of boot parameters */
• gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
• return 0;

+}

+#ifdef CONFIG_CMD_MMC +static int mx28evk_mmc_wp(int id) +{

• if (id != 0) {

• printf("MXS MMC: Invalid card selected (card id = %d)\n", id);
  

• return 1;
  

• }
• return gpio_get_value(MX28_PAD_SSP1_SCK__GPIO_2_12);

+}

+int board_mmc_init(bd_t *bis) +{

• /* Configure WP as input */
• gpio_direction_input(MX28_PAD_SSP1_SCK__GPIO_2_12);
• /* Configure MMC0 Power Enable */
• gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
• return mxsmmc_initialize(bis, 0, mx28evk_mmc_wp);

+} +#endif

+#ifdef CONFIG_CMD_NET

+#define MII_OPMODE_STRAP_OVERRIDE 0x16 +#define MII_PHY_CTRL1 0x1e +#define MII_PHY_CTRL2 0x1f

+int fecmxc_mii_postcall(int phy) +{

• miiphy_write("FEC1", phy, MII_BMCR, 0x9000);
• miiphy_write("FEC1", phy, MII_OPMODE_STRAP_OVERRIDE, 0x0202);
• if (phy == 3)

• miiphy_write("FEC1", 3, MII_PHY_CTRL2, 0x8180);
  

• return 0;

+}

+int board_eth_init(bd_t *bis) +{

• struct mx28_clkctrl_regs *clkctrl_regs =

• (struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
  

• struct eth_device *dev;
• int ret;
• ret = cpu_eth_init(bis);
• /* MX28EVK uses ENET_CLK PAD to drive FEC clock */
• writel(CLKCTRL_ENET_TIME_SEL_RMII_CLK | CLKCTRL_ENET_CLK_OUT_EN,

• 			&clkctrl_regs->hw_clkctrl_enet);
  

• /* Power-on FECs */
• gpio_direction_output(MX28_PAD_SSP1_DATA3__GPIO_2_15, 0);
• /* Reset FEC PHYs */
• gpio_direction_output(MX28_PAD_ENET0_RX_CLK__GPIO_4_13, 0);
• udelay(200);
• gpio_set_value(MX28_PAD_ENET0_RX_CLK__GPIO_4_13, 1);
• ret = fecmxc_initialize_multi(bis, 0, 0, MXS_ENET0_BASE);
• if (ret) {

• puts("FEC MXS: Unable to init FEC0\n");
  

• return ret;
  

• }
• ret = fecmxc_initialize_multi(bis, 1, 3, MXS_ENET1_BASE);
• if (ret) {

• puts("FEC MXS: Unable to init FEC1\n");
  

• return ret;
  

• }
• dev = eth_get_dev_by_name("FEC0");
• if (!dev) {

• puts("FEC MXS: Unable to get FEC0 device entry\n");
  

• return -EINVAL;
  

• }
• ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
• if (ret) {

• puts("FEC MXS: Unable to register FEC0 mii postcall\n");
  

• return ret;
  

• }
• dev = eth_get_dev_by_name("FEC1");
• if (!dev) {

• puts("FEC MXS: Unable to get FEC1 device entry\n");
  

• return -EINVAL;
  

• }
• ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall);
• if (ret) {

• puts("FEC MXS: Unable to register FEC1 mii postcall\n");
  

• return ret;
  

• }
• return ret;

+}

+#endif diff --git a/board/freescale/mx28evk/u-boot.bd b/board/freescale/mx28evk/u-boot.bd new file mode 100644 index 0000000..c60615a --- /dev/null +++ b/board/freescale/mx28evk/u-boot.bd @@ -0,0 +1,14 @@ +sources {

• u_boot_spl="spl/u-boot-spl.bin";
• u_boot="u-boot.bin";

+}

+section (0) {

• load u_boot_spl > 0x0000;
• load ivt (entry = 0x0014) > 0x8000;
• hab call 0x8000;
• load u_boot > 0x40000100;
• load ivt (entry = 0x40000100) > 0x8000;
• hab call 0x8000;

+} diff --git a/boards.cfg b/boards.cfg index 1e5b3e0..e859024 100644 --- a/boards.cfg +++ b/boards.cfg @@ -160,6 +160,7 @@ zmx25 arm arm926ejs zmx25 syteco imx27lite arm arm926ejs imx27lite logicpd mx27 magnesium arm arm926ejs imx27lite logicpd mx27 m28evk arm arm926ejs - denx mx28 +mx28evk arm arm926ejs

•               freescale      mx28 nhk8815                      arm  
  arm926ejs   nhk8815             st             nomadik
  

nhk8815_onenand arm arm926ejs nhk8815 st nomadik nhk8815:BOOT_ONENAND omap1610h2 arm arm926ejs omap1610inn ti omap omap1610inn:CS3_BOOT

diff --git

a/include/configs/mx28evk.h b/include/configs/mx28evk.h new file mode 100644 index 0000000..5b8a1bf --- /dev/null +++ b/include/configs/mx28evk.h @@ -0,0 +1,176 @@ +/*

• • (C) Copyright 2011 Freescale Semiconductor, Inc.
• • Author: Fabio Estevam fabio.estevam@freescale.com
• • Based on m28evk.h:
• • Copyright (C) 2011 Marek Vasut marek.vasut@gmail.com
• • on behalf of DENX Software Engineering GmbH
• • 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.
• */

+#ifndef __CONFIG_H +#define __CONFIG_H

+#include <asm/arch/regs-base.h>

+/*

• • SoC configurations
• */

+#define CONFIG_MX28 /* i.MX28 SoC */ +#define CONFIG_MXS_GPIO /* GPIO control */ +#define CONFIG_SYS_HZ 1000 /* Ticks per second */

+#define CONFIG_MACH_TYPE MACH_TYPE_MX28EVK

+#define CONFIG_SYS_NO_FLASH +#define CONFIG_SYS_ICACHE_OFF +#define CONFIG_SYS_DCACHE_OFF +#define CONFIG_BOARD_EARLY_INIT_F +#define CONFIG_ARCH_CPU_INIT +#define CONFIG_ARCH_MISC_INIT

+/*

• • SPL
• */

+#define CONFIG_SPL +#define CONFIG_SPL_NO_CPU_SUPPORT_CODE +#define CONFIG_SPL_START_S_PATH "arch/arm/cpu/arm926ejs/mx28" +#define CONFIG_SPL_LDSCRIPT "arch/arm/cpu/arm926ejs/mx28/u-boot-spl.lds" +#define CONFIG_SPL_LIBCOMMON_SUPPORT +#define CONFIG_SPL_LIBGENERIC_SUPPORT

+/*

• • U-Boot Commands
• */

+#include <config_cmd_default.h> +#define CONFIG_DISPLAY_CPUINFO +#define CONFIG_DOS_PARTITION +#define CONFIG_CMD_FAT

+#define CONFIG_CMD_CACHE +#define CONFIG_CMD_DHCP +#define CONFIG_CMD_GPIO +#define CONFIG_CMD_MII +#define CONFIG_CMD_MMC +#define CONFIG_CMD_NET +#define CONFIG_CMD_NFS +#define CONFIG_CMD_PING

+/*

• • Memory configurations
• */

+#define CONFIG_NR_DRAM_BANKS 1 /* 1 bank of

DRAM */

+#define PHYS_SDRAM_1 0x40000000 /* Base address

*/

+#define PHYS_SDRAM_1_SIZE 0x40000000 /* Max 1 GB RAM

*/

+#define CONFIG_STACKSIZE (128 * 1024) /* 128 KB stack

*/

+#define CONFIG_SYS_MALLOC_LEN 0x00400000 /* 4 MB for

malloc */

+#define CONFIG_SYS_MEMTEST_START 0x40000000 /* Memtest start

adr */

+#define CONFIG_SYS_MEMTEST_END 0x40400000 /* 4 MB RAM test

*/

+#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1 +/* Point initial SP in SRAM so SPL can use it too. */

+#define CONFIG_SYS_INIT_RAM_ADDR 0x00002000 +#define CONFIG_SYS_INIT_RAM_SIZE (128 * 1024)

+#define CONFIG_SYS_INIT_SP_OFFSET \

• (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)

+#define CONFIG_SYS_INIT_SP_ADDR \

• (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)

+/*

• • We need to sacrifice first 4 bytes of RAM here to avoid triggering some
• • strange BUG in ROM corrupting first 4 bytes of RAM when loading U-Boot
• • binary. In case there was more of this mess, 0x100 bytes are skipped.
• */

+#define CONFIG_SYS_TEXT_BASE 0x40000100

+#define CONFIG_ENV_OVERWRITE +/*

• • U-Boot general configurations
• */

+#define CONFIG_SYS_LONGHELP +#define CONFIG_SYS_PROMPT "MX28EVK U-Boot > " +#define CONFIG_SYS_CBSIZE 1024 /* Console I/O buffer

size */

+#define CONFIG_SYS_PBSIZE \

• (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)

• 				/* Print buffer size */
  

+#define CONFIG_SYS_MAXARGS 32 /* Max number of command

args */

+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE

• 				/* Boot argument buffer size */
  

+#define CONFIG_VERSION_VARIABLE /* U-BOOT version */ +#define CONFIG_AUTO_COMPLETE /* Command auto complete

*/

+#define CONFIG_CMDLINE_EDITING /* Command history etc

*/

+#define CONFIG_SYS_HUSH_PARSER +#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "

+/*

• • Serial Driver
• */

+#define CONFIG_PL011_SERIAL +#define CONFIG_PL011_CLOCK 24000000 +#define CONFIG_PL01x_PORTS { (void *)MXS_UARTDBG_BASE } +#define CONFIG_CONS_INDEX 0 +#define CONFIG_BAUDRATE 115200 /* Default baud rate */ +#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600,

115200 }

+/*

• • MMC Driver
• */

+#define CONFIG_ENV_IS_IN_MMC +#define CONFIG_ENV_OFFSET (256 * 1024) +#define CONFIG_ENV_SIZE (16 * 1024) +#define CONFIG_SYS_MMC_ENV_DEV 0 +#define CONFIG_CMD_SAVEENV +#ifdef CONFIG_CMD_MMC +#define CONFIG_MMC +#define CONFIG_GENERIC_MMC +#define CONFIG_MXS_MMC +#endif

Tabs vs. spaces, please fix globally.

M