9
0
Fork 0

ARM i.MX: Add Ka-Ro TX53 board support

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2012-08-06 16:15:14 +02:00
parent 526a745f68
commit ae50b6287a
8 changed files with 438 additions and 0 deletions

View File

@ -141,6 +141,7 @@ board-$(CONFIG_MACH_TOSHIBA_AC100) := toshiba-ac100
board-$(CONFIG_MACH_CCMX51) := ccxmx51
board-$(CONFIG_MACH_TINY210) := friendlyarm-tiny210
board-$(CONFIG_MACH_SABRELITE) := freescale-mx6-sabrelite
board-$(CONFIG_MACH_TX53) := karo-tx53
machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))

View File

@ -0,0 +1,2 @@
obj-y += board.o
obj-y += flash_header.o

View File

@ -0,0 +1,240 @@
/*
* Copyright (C) 2012 Sascha Hauer, Pengutronix
*
* 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 <environment.h>
#include <fcntl.h>
#include <fec.h>
#include <fs.h>
#include <init.h>
#include <nand.h>
#include <net.h>
#include <partition.h>
#include <sizes.h>
#include <generated/mach-types.h>
#include <mach/imx-regs.h>
#include <mach/iomux-mx53.h>
#include <mach/devices-imx53.h>
#include <mach/generic.h>
#include <mach/gpio.h>
#include <mach/imx-nand.h>
#include <mach/iim.h>
#include <mach/imx5.h>
#include <asm/armlinux.h>
#include <io.h>
#include <asm/mmu.h>
static struct fec_platform_data fec_info = {
.xcv_type = RMII,
};
static iomux_v3_cfg_t tx53_pads[] = {
/* UART1 */
MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
MX53_PAD_PATA_DMARQ__UART2_TXD_MUX,
MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX,
MX53_PAD_PATA_CS_0__UART3_TXD_MUX,
MX53_PAD_PATA_CS_1__UART3_RXD_MUX,
/* setup FEC PHY pins for GPIO function */
MX53_PAD_FEC_REF_CLK__GPIO1_23,
MX53_PAD_FEC_MDC__GPIO1_31,
MX53_PAD_FEC_MDIO__GPIO1_22,
MX53_PAD_FEC_RXD0__GPIO1_27,
MX53_PAD_FEC_RXD1__GPIO1_26,
MX53_PAD_FEC_RX_ER__GPIO1_24,
MX53_PAD_FEC_TX_EN__GPIO1_28,
MX53_PAD_FEC_TXD0__GPIO1_30,
MX53_PAD_FEC_TXD1__GPIO1_29,
MX53_PAD_FEC_CRS_DV__GPIO1_25,
/* FEC PHY reset */
MX53_PAD_PATA_DA_0__GPIO7_6,
/* FEC PHY power */
MX53_PAD_EIM_D20__GPIO3_20,
/* SD1 */
MX53_PAD_SD1_CMD__ESDHC1_CMD,
MX53_PAD_SD1_CLK__ESDHC1_CLK,
MX53_PAD_SD1_DATA0__ESDHC1_DAT0,
MX53_PAD_SD1_DATA1__ESDHC1_DAT1,
MX53_PAD_SD1_DATA2__ESDHC1_DAT2,
MX53_PAD_SD1_DATA3__ESDHC1_DAT3,
/* SD1_CD */
MX53_PAD_EIM_D24__GPIO3_24,
MX53_PAD_GPIO_3__I2C3_SCL,
MX53_PAD_GPIO_6__I2C3_SDA,
MX53_PAD_CSI0_DAT12__IPU_CSI0_D_12,
MX53_PAD_CSI0_DAT13__IPU_CSI0_D_13,
MX53_PAD_CSI0_DAT14__IPU_CSI0_D_14,
MX53_PAD_CSI0_DAT15__IPU_CSI0_D_15,
MX53_PAD_CSI0_DAT16__IPU_CSI0_D_16,
MX53_PAD_CSI0_DAT17__IPU_CSI0_D_17,
MX53_PAD_CSI0_DAT18__IPU_CSI0_D_18,
MX53_PAD_CSI0_DAT19__IPU_CSI0_D_19,
MX53_PAD_CSI0_VSYNC__IPU_CSI0_VSYNC,
MX53_PAD_CSI0_MCLK__IPU_CSI0_HSYNC,
MX53_PAD_CSI0_PIXCLK__IPU_CSI0_PIXCLK,
};
static int tx53_mem_init(void)
{
arm_add_mem_device("ram0", 0x70000000, SZ_1G);
return 0;
}
mem_initcall(tx53_mem_init);
#define TX53_SD1_CD IMX_GPIO_NR(3, 24)
static struct esdhc_platform_data tx53_sd1_data = {
.cd_gpio = TX53_SD1_CD,
.cd_type = ESDHC_CD_GPIO,
.wp_type = ESDHC_WP_NONE,
};
struct imx_nand_platform_data nand_info = {
.width = 1,
.hw_ecc = 1,
.flash_bbt = 1,
};
#define FEC_POWER_GPIO IMX_GPIO_NR(3, 20)
#define FEC_RESET_GPIO IMX_GPIO_NR(7, 6)
static struct tx53_fec_gpio_setup {
iomux_v3_cfg_t pad;
unsigned gpio:9,
dir:1,
level:1;
} tx53_fec_gpios[] = {
{ MX53_PAD_PATA_DA_0__GPIO7_6, FEC_RESET_GPIO, 1, 0, }, /* PHY reset */
{ MX53_PAD_EIM_D20__GPIO3_20, FEC_POWER_GPIO, 1, 1, }, /* PHY power enable */
{ MX53_PAD_FEC_REF_CLK__GPIO1_23, IMX_GPIO_NR(1, 23), 0, }, /* ENET_CLK */
{ MX53_PAD_FEC_MDC__GPIO1_31, IMX_GPIO_NR(1, 31), 1, 0, }, /* MDC */
{ MX53_PAD_FEC_MDIO__GPIO1_22, IMX_GPIO_NR(1, 22), 1, 0, }, /* MDIO */
{ MX53_PAD_FEC_RXD0__GPIO1_27, IMX_GPIO_NR(1, 27), 1, 1, }, /* Mode0/RXD0 */
{ MX53_PAD_FEC_RXD1__GPIO1_26, IMX_GPIO_NR(1, 26), 1, 1, }, /* Mode1/RXD1 */
{ MX53_PAD_FEC_RX_ER__GPIO1_24, IMX_GPIO_NR(1, 24), 0, }, /* RX_ER */
{ MX53_PAD_FEC_TX_EN__GPIO1_28, IMX_GPIO_NR(1, 28), 1, 0, }, /* TX_EN */
{ MX53_PAD_FEC_TXD0__GPIO1_30, IMX_GPIO_NR(1, 30), 1, 0, }, /* TXD0 */
{ MX53_PAD_FEC_TXD1__GPIO1_29, IMX_GPIO_NR(1, 29), 1, 0, }, /* TXD1 */
{ MX53_PAD_FEC_CRS_DV__GPIO1_25, IMX_GPIO_NR(1, 25), 1, 1, }, /* Mode2/CRS_DV */
};
static iomux_v3_cfg_t tx53_fec_pads[] = {
MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
MX53_PAD_FEC_MDC__FEC_MDC,
MX53_PAD_FEC_MDIO__FEC_MDIO,
MX53_PAD_FEC_RXD0__FEC_RDATA_0,
MX53_PAD_FEC_RXD1__FEC_RDATA_1,
MX53_PAD_FEC_RX_ER__FEC_RX_ER,
MX53_PAD_FEC_TX_EN__FEC_TX_EN,
MX53_PAD_FEC_TXD0__FEC_TDATA_0,
MX53_PAD_FEC_TXD1__FEC_TDATA_1,
MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
};
static inline void tx53_fec_init(void)
{
int i;
/* Configure LAN8700 pads as GPIO and set up
* necessary strap options for PHY
*/
for (i = 0; i < ARRAY_SIZE(tx53_fec_gpios); i++) {
struct tx53_fec_gpio_setup *gs = &tx53_fec_gpios[i];
if (gs->dir)
gpio_direction_output(gs->gpio, gs->level);
else
gpio_direction_input(gs->gpio);
mxc_iomux_v3_setup_pad(gs->pad);
}
/*
*Turn on phy power, leave in reset state
*/
gpio_set_value(FEC_POWER_GPIO, 1);
/*
* Wait some time to let the phy activate the internal regulator
*/
mdelay(10);
/*
* Deassert reset, phy latches the rest of bootstrap pins
*/
gpio_set_value(FEC_RESET_GPIO, 1);
/* LAN7800 has an internal Power On Reset (POR) signal (OR'ed with
* the external RESET signal) which is deactivated 21ms after
* power on and latches the strap options.
* Delay for 22ms to ensure, that the internal POR is inactive
* before reconfiguring the strap pins.
*/
mdelay(22);
/*
* The phy is ready, now configure imx51 pads for fec operation
*/
mxc_iomux_v3_setup_multiple_pads(tx53_fec_pads,
ARRAY_SIZE(tx53_fec_pads));
}
static int tx53_devices_init(void)
{
imx53_iim_register_fec_ethaddr();
tx53_fec_init();
imx53_add_fec(&fec_info);
imx53_add_mmc0(&tx53_sd1_data);
imx53_add_nand(&nand_info);
armlinux_set_bootparams((void *)0x70000100);
armlinux_set_architecture(MACH_TYPE_TX53);
return 0;
}
device_initcall(tx53_devices_init);
static int tx53_part_init(void)
{
devfs_add_partition("disk0", 0x00000, SZ_512K, DEVFS_PARTITION_FIXED, "self0");
devfs_add_partition("disk0", SZ_512K, SZ_1M, DEVFS_PARTITION_FIXED, "env0");
return 0;
}
late_initcall(tx53_part_init);
static int tx53_console_init(void)
{
mxc_iomux_v3_setup_multiple_pads(tx53_pads, ARRAY_SIZE(tx53_pads));
imx53_init_lowlevel(1000);
imx53_add_uart0();
return 0;
}
console_initcall(tx53_console_init);

View File

@ -0,0 +1,24 @@
/**
* @file
* @brief Global defintions for the ARM i.MX51 based babbage board
*
* 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
#endif /* __CONFIG_H */

View File

@ -0,0 +1,8 @@
#!/bin/sh
if [ "$1" = menu ]; then
init-menu-add-entry "$0" "Base bootargs"
exit
fi
global.linux.bootargs.base="console=ttymxc0,115200"

View File

@ -0,0 +1,8 @@
#!/bin/sh
if [ "$1" = menu ]; then
init-menu-add-entry "$0" "hostname"
exit
fi
global.hostname=tx53

View File

@ -0,0 +1,147 @@
/*
* Copyright (C) 2011 Marc Kleine-Budde <mkl@pengutronix.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.
*
*/
#include <common.h>
#include <asm/byteorder.h>
#include <mach/imx-flash-header.h>
#include <asm/barebox-arm-head.h>
void __naked __flash_header_start go(void)
{
barebox_arm_head();
}
/*
* FIXME: These are the dcd values for a Ka-Ro TX53 1011 which
* is not in production. It has 1GB DDR2 memory.
*/
struct imx_dcd_v2_entry __dcd_entry_section dcd_entry[] = {
{ .addr = cpu_to_be32(0x53fd406c), .val = cpu_to_be32(0xffffffff), },
{ .addr = cpu_to_be32(0x53fd4070), .val = cpu_to_be32(0xffffffff), },
{ .addr = cpu_to_be32(0x53fd4074), .val = cpu_to_be32(0xffffffff), },
{ .addr = cpu_to_be32(0x53fd4078), .val = cpu_to_be32(0xffffffff), },
{ .addr = cpu_to_be32(0x53fd407c), .val = cpu_to_be32(0xffffffff), },
{ .addr = cpu_to_be32(0x53fd4080), .val = cpu_to_be32(0xffffffff), },
{ .addr = cpu_to_be32(0x53fd4088), .val = cpu_to_be32(0xffffffff), },
{ .addr = cpu_to_be32(0x53fa8174), .val = cpu_to_be32(0x00000011), },
{ .addr = cpu_to_be32(0x63fd800c), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa8554), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa8560), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa8594), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa8584), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa8558), .val = cpu_to_be32(0x00200040), },
{ .addr = cpu_to_be32(0x53fa8568), .val = cpu_to_be32(0x00200040), },
{ .addr = cpu_to_be32(0x53fa8590), .val = cpu_to_be32(0x00200040), },
{ .addr = cpu_to_be32(0x53fa857c), .val = cpu_to_be32(0x00200040), },
{ .addr = cpu_to_be32(0x53fa8564), .val = cpu_to_be32(0x00200040), },
{ .addr = cpu_to_be32(0x53fa8580), .val = cpu_to_be32(0x00200040), },
{ .addr = cpu_to_be32(0x53fa8570), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa8578), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa872c), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa8728), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa871c), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa8718), .val = cpu_to_be32(0x00200000), },
{ .addr = cpu_to_be32(0x53fa8574), .val = cpu_to_be32(0x00280000), },
{ .addr = cpu_to_be32(0x53fa8588), .val = cpu_to_be32(0x00280000), },
{ .addr = cpu_to_be32(0x53fa86f0), .val = cpu_to_be32(0x00280000), },
{ .addr = cpu_to_be32(0x53fa8720), .val = cpu_to_be32(0x00280000), },
{ .addr = cpu_to_be32(0x53fa86fc), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa86f4), .val = cpu_to_be32(0x00000200), },
{ .addr = cpu_to_be32(0x53fa8714), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa8724), .val = cpu_to_be32(0x06000000), },
{ .addr = cpu_to_be32(0x63fd9088), .val = cpu_to_be32(0x36353b38), },
{ .addr = cpu_to_be32(0x63fd9090), .val = cpu_to_be32(0x49434942), },
{ .addr = cpu_to_be32(0x63fd90f8), .val = cpu_to_be32(0x00000800), },
{ .addr = cpu_to_be32(0x63fd907c), .val = cpu_to_be32(0x01350138), },
{ .addr = cpu_to_be32(0x63fd9080), .val = cpu_to_be32(0x01380139), },
{ .addr = cpu_to_be32(0x63fd9018), .val = cpu_to_be32(0x00001710), },
{ .addr = cpu_to_be32(0x63fd9000), .val = cpu_to_be32(0x84110000), },
{ .addr = cpu_to_be32(0x63fd900c), .val = cpu_to_be32(0x4d5122d2), },
{ .addr = cpu_to_be32(0x63fd9010), .val = cpu_to_be32(0xb6f18a22), },
{ .addr = cpu_to_be32(0x63fd9014), .val = cpu_to_be32(0x00c700db), },
{ .addr = cpu_to_be32(0x63fd902c), .val = cpu_to_be32(0x000026d2), },
{ .addr = cpu_to_be32(0x63fd9030), .val = cpu_to_be32(0x009f000e), },
{ .addr = cpu_to_be32(0x63fd9008), .val = cpu_to_be32(0x12272000), },
{ .addr = cpu_to_be32(0x63fd9004), .val = cpu_to_be32(0x00030012), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x04008010), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x00008020), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x00008020), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x0a528030), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x03868031), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x00068031), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x00008032), },
{ .addr = cpu_to_be32(0x63fd9020), .val = cpu_to_be32(0x00005800), },
{ .addr = cpu_to_be32(0x63fd9058), .val = cpu_to_be32(0x00033332), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x00448031), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x04008018), },
{ .addr = cpu_to_be32(0x63fd901c), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x63fd9040), .val = cpu_to_be32(0x04b80003), },
{ .addr = cpu_to_be32(0x53fa8004), .val = cpu_to_be32(0x00194005), },
{ .addr = cpu_to_be32(0x53fa819c), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa81a0), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa81a4), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa81a8), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa81ac), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa81b0), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa81b4), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa81b8), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa81dc), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa81e0), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa8228), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa822c), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa8230), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa8234), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa8238), .val = cpu_to_be32(0x00000000), },
{ .addr = cpu_to_be32(0x53fa84ec), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa84f0), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa84f4), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa84f8), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa84fc), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa8500), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa8504), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa8508), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa852c), .val = cpu_to_be32(0x00000004), },
{ .addr = cpu_to_be32(0x53fa8530), .val = cpu_to_be32(0x00000004), },
{ .addr = cpu_to_be32(0x53fa85a0), .val = cpu_to_be32(0x00000004), },
{ .addr = cpu_to_be32(0x53fa85a4), .val = cpu_to_be32(0x00000004), },
{ .addr = cpu_to_be32(0x53fa85a8), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa85ac), .val = cpu_to_be32(0x000000e4), },
{ .addr = cpu_to_be32(0x53fa85b0), .val = cpu_to_be32(0x00000004), },
};
#define APP_DEST 0x70000000
struct imx_flash_header_v2 __flash_header_section flash_header = {
.header.tag = IVT_HEADER_TAG,
.header.length = cpu_to_be16(32),
.header.version = IVT_VERSION,
.entry = APP_DEST + 0x1000,
.dcd_ptr = APP_DEST + 0x400 + offsetof(struct imx_flash_header_v2, dcd),
.boot_data_ptr = APP_DEST + 0x400 + offsetof(struct imx_flash_header_v2, boot_data),
.self = APP_DEST + 0x400,
.boot_data.start = APP_DEST,
.boot_data.size = DCD_BAREBOX_SIZE,
.dcd.header.tag = DCD_HEADER_TAG,
.dcd.header.length = cpu_to_be16(sizeof(struct imx_dcd) + sizeof(dcd_entry)),
.dcd.header.version = DCD_VERSION,
.dcd.command.tag = DCD_COMMAND_WRITE_TAG,
.dcd.command.length = cpu_to_be16(sizeof(struct imx_dcd_command) + sizeof(dcd_entry)),
.dcd.command.param = DCD_COMMAND_WRITE_PARAM,
};

View File

@ -27,6 +27,7 @@ config ARCH_TEXT_BASE
default 0x4fc00000 if MACH_MX6Q_ARM2
default 0x97f00000 if MACH_CCMX51
default 0x4fc00000 if MACH_SABRELITE
default 0x7fe00000 if MACH_TX53
config BOARDINFO
default "Eukrea CPUIMX25" if MACH_EUKREA_CPUIMX25
@ -53,6 +54,7 @@ config BOARDINFO
default "Freescale i.MX6q armadillo2" if MACH_MX6Q_ARM2
default "ConnectCore i.MX51" if MACH_CCMX51
default "Sabre Lite" if MACH_SABRELITE
default "Ka-Ro tx53" if MACH_TX53
choice
prompt "Select boot mode"
@ -459,6 +461,12 @@ config MACH_TQMA53_1GB_RAM
help
use 1GiB of SDRAM (512MiB otherwise)
config MACH_TX53
bool "Ka-Ro TX53"
select HAVE_DEFAULT_ENVIRONMENT_NEW
help
Say Y here if you are using the Ka-Ro tx53 board
endchoice
endif