[PATCH 3/4] initial karo tx25 board support
Sascha Hauer
s.hauer at pengutronix.de
Thu Feb 17 06:39:30 EST 2011
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
arch/arm/Makefile | 1 +
arch/arm/boards/karo-tx25/Makefile | 24 ++
arch/arm/boards/karo-tx25/board.c | 312 ++++++++++++++++++++++++++
arch/arm/boards/karo-tx25/config.h | 31 +++
arch/arm/boards/karo-tx25/env/bin/init_board | 6 +
arch/arm/boards/karo-tx25/env/config | 53 +++++
arch/arm/boards/karo-tx25/lowlevel.c | 173 ++++++++++++++
arch/arm/mach-imx/Kconfig | 9 +
8 files changed, 609 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/boards/karo-tx25/Makefile
create mode 100644 arch/arm/boards/karo-tx25/board.c
create mode 100644 arch/arm/boards/karo-tx25/config.h
create mode 100644 arch/arm/boards/karo-tx25/env/bin/init_board
create mode 100644 arch/arm/boards/karo-tx25/env/config
create mode 100644 arch/arm/boards/karo-tx25/lowlevel.c
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 57a045f..14fd4f1 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -95,6 +95,7 @@ board-$(CONFIG_MACH_FREESCALE_MX51_PDK) := freescale-mx51-pdk
board-$(CONFIG_MACH_GUF_CUPID) := guf-cupid
board-$(CONFIG_MACH_MINI2440) := mini2440
board-$(CONFIG_MACH_VERSATILEPB) := versatile
+board-$(CONFIG_MACH_TX25) := karo-tx25
machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
diff --git a/arch/arm/boards/karo-tx25/Makefile b/arch/arm/boards/karo-tx25/Makefile
new file mode 100644
index 0000000..e909a2c
--- /dev/null
+++ b/arch/arm/boards/karo-tx25/Makefile
@@ -0,0 +1,24 @@
+#
+# (C) Copyright 2011 Sascha Hauer <s.hauer at pengutronix.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
+#
+
+obj-y += lowlevel.o
+obj-y += board.o
diff --git a/arch/arm/boards/karo-tx25/board.c b/arch/arm/boards/karo-tx25/board.c
new file mode 100644
index 0000000..ea35857
--- /dev/null
+++ b/arch/arm/boards/karo-tx25/board.c
@@ -0,0 +1,312 @@
+/*
+ * (C) 2011 Pengutronix, Sascha Hauer <s.hauer at pengutronix.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 <common.h>
+#include <init.h>
+#include <driver.h>
+#include <environment.h>
+#include <mach/imx-regs.h>
+#include <asm/armlinux.h>
+#include <mach/gpio.h>
+#include <asm/io.h>
+#include <partition.h>
+#include <generated/mach-types.h>
+#include <mach/imx-nand.h>
+#include <fec.h>
+#include <nand.h>
+#include <mach/iomux-mx25.h>
+#include <mach/generic.h>
+#include <linux/err.h>
+#include <mach/devices-imx25.h>
+#include <asm/mmu.h>
+
+static struct fec_platform_data fec_info = {
+ .xcv_type = RMII,
+ .phy_addr = 0x1f,
+};
+
+static struct memory_platform_data sdram0_pdata = {
+ .name = "ram0",
+ .flags = DEVFS_RDWR,
+};
+
+static struct device_d sdram0_dev = {
+ .id = -1,
+ .name = "mem",
+ .map_base = IMX_SDRAM_CS0,
+ .size = 32 * 1024 * 1024,
+ .platform_data = &sdram0_pdata,
+};
+
+static struct memory_platform_data sdram1_pdata = {
+ .name = "ram1",
+ .flags = DEVFS_RDWR,
+};
+
+static struct device_d sdram1_dev = {
+ .id = -1,
+ .name = "mem",
+ .map_base = IMX_SDRAM_CS1,
+ .size = 32 * 1024 * 1024,
+ .platform_data = &sdram1_pdata,
+};
+
+static struct memory_platform_data sram_pdata = {
+ .name = "sram0",
+ .flags = DEVFS_RDWR,
+};
+
+static struct device_d sram0_dev = {
+ .id = -1,
+ .name = "mem",
+ .map_base = 0x78000000,
+ .size = 128 * 1024,
+ .platform_data = &sram_pdata,
+};
+
+struct imx_nand_platform_data nand_info = {
+ .width = 1,
+ .hw_ecc = 1,
+ .flash_bbt = 1,
+};
+
+#ifdef CONFIG_MMU
+static int tx25_mmu_init(void)
+{
+ mmu_init();
+
+ arm_create_section(0x80000000, 0x80000000, 32, PMD_SECT_DEF_CACHED);
+ arm_create_section(0x90000000, 0x90000000, 32, PMD_SECT_DEF_CACHED);
+ arm_create_section(0x92000000, 0x90000000, 32, PMD_SECT_DEF_UNCACHED);
+
+ setup_dma_coherent(0x02000000);
+
+#if TEXT_BASE & (0x100000 - 1)
+#warning cannot create vector section. Adjust TEXT_BASE to a 1M boundary
+#else
+ arm_create_section(0x0, TEXT_BASE, 1, PMD_SECT_DEF_UNCACHED);
+#endif
+ mmu_enable();
+
+ return 0;
+}
+postcore_initcall(tx25_mmu_init);
+#endif
+
+static struct pad_desc karo_tx25_padsd_fec[] = {
+ MX25_PAD_D11__GPIO_4_9, /* FEC PHY power on pin */
+ MX25_PAD_D13__GPIO_4_7, /* FEC reset */
+ MX25_PAD_FEC_MDC__FEC_MDC,
+ MX25_PAD_FEC_MDIO__FEC_MDIO,
+ MX25_PAD_FEC_TDATA0__FEC_TDATA0,
+ MX25_PAD_FEC_TDATA1__FEC_TDATA1,
+ MX25_PAD_FEC_TX_EN__FEC_TX_EN,
+ MX25_PAD_FEC_RDATA0__FEC_RDATA0,
+ MX25_PAD_FEC_RDATA1__FEC_RDATA1,
+ MX25_PAD_FEC_RX_DV__FEC_RX_DV,
+ MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
+};
+
+#define TX25_FEC_PWR_GPIO (GPIO_PORTD | 9)
+#define TX25_FEC_RST_GPIO (GPIO_PORTD | 7)
+
+static void noinline gpio_fec_active(void)
+{
+ mxc_iomux_v3_setup_multiple_pads(karo_tx25_padsd_fec,
+ ARRAY_SIZE(karo_tx25_padsd_fec));
+
+ /* power down phy, put into reset */
+ gpio_direction_output(TX25_FEC_PWR_GPIO, 0);
+ gpio_direction_output(TX25_FEC_RST_GPIO, 0);
+
+ udelay(10);
+
+ /* power up phy, get out of reset */
+ gpio_direction_output(TX25_FEC_PWR_GPIO, 1);
+ gpio_direction_output(TX25_FEC_RST_GPIO, 1);
+
+ udelay(100);
+
+ /* apply a reset to the powered phy again */
+ gpio_direction_output(TX25_FEC_RST_GPIO, 0);
+ udelay(100);
+ gpio_direction_output(TX25_FEC_RST_GPIO, 1);
+}
+
+static int tx25_devices_init(void)
+{
+ gpio_fec_active();
+
+ imx25_add_fec(&fec_info);
+
+ if (readl(IMX_CCM_BASE + CCM_RCSR) & (1 << 14))
+ nand_info.width = 2;
+
+ imx25_add_nand(&nand_info);
+
+ devfs_add_partition("nand0", 0x00000, 0x40000, PARTITION_FIXED, "self_raw");
+ dev_add_bb_dev("self_raw", "self0");
+
+ devfs_add_partition("nand0", 0x40000, 0x80000, PARTITION_FIXED, "env_raw");
+ dev_add_bb_dev("env_raw", "env0");
+
+ register_device(&sdram0_dev);
+ register_device(&sdram1_dev);
+ register_device(&sram0_dev);
+
+ armlinux_add_dram(&sdram0_dev);
+ armlinux_add_dram(&sdram1_dev);
+ armlinux_set_bootparams((void *)0x80000100);
+ armlinux_set_architecture(MACH_TYPE_TX25);
+ armlinux_set_serial(imx_uid());
+
+ return 0;
+}
+
+device_initcall(tx25_devices_init);
+
+static struct pad_desc tx25_pads[] = {
+ MX25_PAD_D12__GPIO_4_8,
+ MX25_PAD_D10__GPIO_4_10,
+ MX25_PAD_NF_CE0__NF_CE0,
+ MX25_PAD_NFWE_B__NFWE_B,
+ MX25_PAD_NFRE_B__NFRE_B,
+ MX25_PAD_NFALE__NFALE,
+ MX25_PAD_NFCLE__NFCLE,
+ MX25_PAD_NFWP_B__NFWP_B,
+ MX25_PAD_NFRB__NFRB,
+ MX25_PAD_D7__D7,
+ MX25_PAD_D6__D6,
+ MX25_PAD_D5__D5,
+ MX25_PAD_D4__D4,
+ MX25_PAD_D3__D3,
+ MX25_PAD_D2__D2,
+ MX25_PAD_D1__D1,
+ MX25_PAD_D0__D0,
+ MX25_PAD_UART1_TXD__UART1_TXD,
+ MX25_PAD_UART1_RXD__UART1_RXD,
+ MX25_PAD_UART1_CTS__UART1_CTS,
+ MX25_PAD_UART1_RTS__UART1_RTS,
+};
+
+static int tx25_console_init(void)
+{
+ mxc_iomux_v3_setup_multiple_pads(tx25_pads, ARRAY_SIZE(tx25_pads));
+
+ imx25_add_uart0();
+ return 0;
+}
+
+console_initcall(tx25_console_init);
+
+#ifdef CONFIG_NAND_IMX_BOOT
+void __bare_init nand_boot(void)
+{
+ imx_nand_load_image((void *)TEXT_BASE, 256 * 1024);
+}
+#endif
+
+static struct pad_desc tx25_lcdc_gpios[] = {
+ MX25_PAD_A18__GPIO_2_4, /* LCD Reset (active LOW) */
+ MX25_PAD_PWM__GPIO_1_26, /* LCD Backlight brightness 0: full 1: off */
+ MX25_PAD_A19__GPIO_2_5, /* LCD Power Enable 0: off 1: on */
+ MX25_PAD_LSCLK__LSCLK,
+ MX25_PAD_LD0__LD0,
+ MX25_PAD_LD1__LD1,
+ MX25_PAD_LD2__LD2,
+ MX25_PAD_LD3__LD3,
+ MX25_PAD_LD4__LD4,
+ MX25_PAD_LD5__LD5,
+ MX25_PAD_LD6__LD6,
+ MX25_PAD_LD7__LD7,
+ MX25_PAD_LD8__LD8,
+ MX25_PAD_LD9__LD9,
+ MX25_PAD_LD10__LD10,
+ MX25_PAD_LD11__LD11,
+ MX25_PAD_LD12__LD12,
+ MX25_PAD_LD13__LD13,
+ MX25_PAD_LD14__LD14,
+ MX25_PAD_LD15__LD15,
+ MX25_PAD_D15__LD16,
+ MX25_PAD_D14__LD17,
+ MX25_PAD_HSYNC__HSYNC,
+ MX25_PAD_VSYNC__VSYNC,
+ MX25_PAD_OE_ACD__OE_ACD,
+};
+
+static struct imx_fb_videomode stk5_fb_mode = {
+ .bpp = 16,
+ .mode = {
+ .name = "G-ETV570G0DMU",
+ .pixclock = 33333,
+
+ .xres = 640,
+ .yres = 480,
+
+ .hsync_len = 64,
+ .left_margin = 96,
+ .right_margin = 80,
+
+ .vsync_len = 3,
+ .upper_margin = 46,
+ .lower_margin = 39,
+ },
+ .pcr = PCR_TFT | PCR_COLOR | PCR_FLMPOL | PCR_LPPOL | PCR_SCLK_SEL,
+};
+
+#define STK5_LCD_BACKLIGHT_GPIO (GPIO_PORTA | 26)
+#define STK5_LCD_RESET_GPIO (GPIO_PORTB | 4)
+#define STK5_LCD_POWER_GPIO (GPIO_PORTB | 5)
+
+static void tx25_fb_enable(int enable)
+{
+ if (enable) {
+ gpio_direction_output(STK5_LCD_RESET_GPIO, 1);
+ gpio_direction_output(STK5_LCD_POWER_GPIO, 1);
+ mdelay(300);
+ gpio_direction_output(STK5_LCD_BACKLIGHT_GPIO, 0);
+ } else {
+ gpio_direction_output(STK5_LCD_BACKLIGHT_GPIO, 1);
+ gpio_direction_output(STK5_LCD_RESET_GPIO, 0);
+ gpio_direction_output(STK5_LCD_POWER_GPIO, 0);
+ }
+}
+
+static struct imx_fb_platform_data tx25_fb_data = {
+ .mode = &stk5_fb_mode,
+ .dmacr = 0x80040060,
+ .enable = tx25_fb_enable,
+};
+
+static int tx25_init_fb(void)
+{
+ tx25_fb_enable(0);
+
+ mxc_iomux_v3_setup_multiple_pads(tx25_lcdc_gpios,
+ ARRAY_SIZE(tx25_lcdc_gpios));
+
+ imx25_add_fb(&tx25_fb_data);
+
+ return 0;
+}
+device_initcall(tx25_init_fb);
diff --git a/arch/arm/boards/karo-tx25/config.h b/arch/arm/boards/karo-tx25/config.h
new file mode 100644
index 0000000..f3a7c80
--- /dev/null
+++ b/arch/arm/boards/karo-tx25/config.h
@@ -0,0 +1,31 @@
+/*
+ * (C) Copyright 2011 Sascha Hauer <s.hauer at 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.
+ *
+ * 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
+
+/*
+ * Definitions related to passing arguments to kernel.
+ */
+
+#define CONFIG_MX25_HCLK_FREQ 24000000
+
+#endif
+
+/* nothing to do here yet */
diff --git a/arch/arm/boards/karo-tx25/env/bin/init_board b/arch/arm/boards/karo-tx25/env/bin/init_board
new file mode 100644
index 0000000..b17c55d
--- /dev/null
+++ b/arch/arm/boards/karo-tx25/env/bin/init_board
@@ -0,0 +1,6 @@
+
+if [ -e /dev/fb0 -a -e /env/splash.bmp ]; then
+ bmp /env/splash.bmp
+ fb0.enable=1
+fi
+
diff --git a/arch/arm/boards/karo-tx25/env/config b/arch/arm/boards/karo-tx25/env/config
new file mode 100644
index 0000000..e4ff756
--- /dev/null
+++ b/arch/arm/boards/karo-tx25/env/config
@@ -0,0 +1,53 @@
+
+machine=tx25
+baseboard=tx28stk5
+user=
+
+# use 'dhcp' to do dhcp in barebox and in kernel
+# use 'none' if you want to skip kernel ip autoconfiguration
+ip=dhcp
+
+# or set your networking parameters here
+#eth0.ipaddr=a.b.c.d
+#eth0.ethaddr=de:ad:be:ef:00:00
+#eth0.netmask=a.b.c.d
+#eth0.serverip=a.b.c.d
+#eth0.gateway=a.b.c.d
+
+# can be either 'net'
+kernel_loc=net
+# can be either 'net' or 'initrd'
+rootfs_loc=net
+
+# can be either 'jffs2' or 'ubifs'
+rootfs_type=ubifs
+rootfsimage=root-$machine.$rootfs_type
+
+# The image type of the kernel. Can be uimage, zimage, raw, or raw_lzo
+kernelimage_type=zimage
+kernelimage=zImage-$machine
+#kernelimage_type=uimage
+#kernelimage=uImage-$machine
+#kernelimage_type=raw
+#kernelimage=Image-$machine
+#kernelimage_type=raw_lzo
+#kernelimage=Image-$machine.lzo
+
+if [ -n $user ]; then
+ kernelimage="$user"-"$kernelimage"
+ nfsroot="$eth0.serverip:/home/$user/nfsroot/$machine"
+ rootfsimage="$user"-"$rootfsimage"
+else
+ nfsroot="$eth0.serverip:/path/to/nfs/root"
+fi
+
+autoboot_timeout=3
+
+bootargs="console=ttymxc0,115200 tx25_base=$baseboard"
+
+nand_parts="256k(barebox)ro,512k(bareboxenv),2M(kernel),-(root)"
+nand_device=mxc_nand
+rootfs_mtdblock_nand=3
+
+PS1="\e[1;32mbarebox@\e[1;31m\h:\w\e[0m "
+
diff --git a/arch/arm/boards/karo-tx25/lowlevel.c b/arch/arm/boards/karo-tx25/lowlevel.c
new file mode 100644
index 0000000..86319d7
--- /dev/null
+++ b/arch/arm/boards/karo-tx25/lowlevel.c
@@ -0,0 +1,173 @@
+/*
+ *
+ * (c) 2011 Pengutronix, Sascha Hauer <s.hauer at pengutronix.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 <common.h>
+#include <init.h>
+#include <mach/imx-regs.h>
+#include <mach/esdctl.h>
+#include <asm/io.h>
+#include <mach/imx-nand.h>
+#include <asm/barebox-arm.h>
+#include <asm/system.h>
+#include <asm-generic/memory_layout.h>
+
+#ifdef CONFIG_NAND_IMX_BOOT
+static void __bare_init __naked insdram(void)
+{
+ uint32_t r;
+
+ /* setup a stack to be able to call imx_nand_load_image() */
+ r = STACK_BASE + STACK_SIZE - 12;
+ __asm__ __volatile__("mov sp, %0" : : "r"(r));
+
+ imx_nand_load_image((void *)TEXT_BASE, 256 * 1024);
+
+ board_init_lowlevel_return();
+}
+#endif
+
+static inline void __bare_init setup_sdram(uint32_t base, uint32_t esdctl,
+ uint32_t esdcfg)
+{
+ uint32_t esdctlreg = ESDCTL0;
+ uint32_t esdcfgreg = ESDCFG0;
+
+ if (base == 0x90000000) {
+ esdctlreg += 8;
+ esdcfgreg += 8;
+ }
+
+ esdctl |= ESDCTL0_SDE;
+
+ writel(esdcfg, esdcfgreg);
+ writel(esdctl | ESDCTL0_SMODE_PRECHARGE, esdctlreg);
+ writel(0, base + 1024);
+ writel(esdctl | ESDCTL0_SMODE_AUTO_REFRESH, esdctlreg);
+ readb(base);
+ readb(base);
+ writel(esdctl | ESDCTL0_SMODE_LOAD_MODE, esdctlreg);
+ writeb(0, base + 0x33);
+ writel(esdctl, esdctlreg);
+}
+
+void __bare_init __naked board_init_lowlevel(void)
+{
+ uint32_t r;
+ int i;
+#ifdef CONFIG_NAND_IMX_BOOT
+ unsigned int *trg, *src;
+#endif
+
+ /* AIPS setup - Only setup MPROTx registers. The PACR default values are good.
+ * Set all MPROTx to be non-bufferable, trusted for R/W,
+ * not forced to user-mode.
+ */
+ writel(0x77777777, 0x43f00000);
+ writel(0x77777777, 0x43f00004);
+ writel(0x77777777, 0x53f00000);
+ writel(0x77777777, 0x53f00004);
+
+ /* MAX (Multi-Layer AHB Crossbar Switch) setup
+ * MPR - priority for MX25 is (SDHC2/SDMA)>USBOTG>RTIC>IAHB>DAHB
+ */
+ writel(0x00043210, 0x43f04000);
+ writel(0x00043210, 0x43f04100);
+ writel(0x00043210, 0x43f04200);
+ writel(0x00043210, 0x43f04300);
+ writel(0x00043210, 0x43f04400);
+ /* SGPCR - always park on last master */
+ writel(0x10, 0x43f04010);
+ writel(0x10, 0x43f04110);
+ writel(0x10, 0x43f04210);
+ writel(0x10, 0x43f04310);
+ writel(0x10, 0x43f04410);
+ /* MGPCR - restore default values */
+ writel(0x0, 0x43f04800);
+ writel(0x0, 0x43f04900);
+ writel(0x0, 0x43f04a00);
+ writel(0x0, 0x43f04b00);
+ writel(0x0, 0x43f04c00);
+
+ /* Configure M3IF registers
+ * M3IF Control Register (M3IFCTL) for MX25
+ * MRRP[0] = LCDC on priority list (1 << 0) = 0x00000001
+ * MRRP[1] = MAX1 not on priority list (0 << 1) = 0x00000000
+ * MRRP[2] = MAX0 not on priority list (0 << 2) = 0x00000000
+ * MRRP[3] = USB HOST not on priority list (0 << 3) = 0x00000000
+ * MRRP[4] = SDMA not on priority list (0 << 4) = 0x00000000
+ * MRRP[5] = SD/ATA/FEC not on priority list (0 << 5) = 0x00000000
+ * MRRP[6] = SCMFBC not on priority list (0 << 6) = 0x00000000
+ * MRRP[7] = CSI not on priority list (0 << 7) = 0x00000000
+ * ----------
+ * 0x00000001
+ */
+ writel(0x1, 0xb8003000);
+
+ /* configure ARM clk */
+ writel(0x20034000, IMX_CCM_BASE + CCM_CCTL);
+
+ /* enable all the clocks */
+ writel(0x1fffffff, IMX_CCM_BASE + CCM_CGCR0);
+ writel(0xffffffff, IMX_CCM_BASE + CCM_CGCR1);
+ writel(0x000fdfff, IMX_CCM_BASE + CCM_CGCR2);
+
+ /* Skip SDRAM initialization if we run from RAM */
+ r = get_pc();
+ if (r > 0x80000000 && r < 0x90000000)
+ board_init_lowlevel_return();
+
+ /* set to 3.3v SDRAM */
+ writel(0x800, IMX_IOMUXC_BASE + 0x454);
+
+ writel(ESDMISC_RST, ESDMISC);
+
+ while (!(readl(ESDMISC) & (1 << 31)));
+
+#define ESDCTLVAL (ESDCTL0_ROW13 | ESDCTL0_COL9 | ESDCTL0_DSIZ_15_0 | \
+ ESDCTL0_REF4 | ESDCTL0_PWDT_PRECHARGE_PWDN | ESDCTL0_BL)
+#define ESDCFGVAL (ESDCFGx_tRP_3 | ESDCFGx_tMRD_2 | ESDCFGx_tRAS_6 | \
+ ESDCFGx_tRRD_2 | ESDCFGx_tCAS_3 | ESDCFGx_tRCD_3 | \
+ ESDCFGx_tRC_9)
+
+ setup_sdram(0x80000000, ESDCTLVAL, ESDCFGVAL);
+ setup_sdram(0x90000000, ESDCTLVAL, ESDCFGVAL);
+
+#ifdef CONFIG_NAND_IMX_BOOT
+ /* skip NAND boot if not running from NFC space */
+ r = get_pc();
+ if (r < IMX_NFC_BASE || r > IMX_NFC_BASE + 0x800)
+ board_init_lowlevel_return();
+
+ src = (unsigned int *)IMX_NFC_BASE;
+ trg = (unsigned int *)TEXT_BASE;
+
+ /* Move ourselves out of NFC SRAM */
+ for (i = 0; i < 0x800 / sizeof(int); i++)
+ *trg++ = *src++;
+
+ /* Jump to SDRAM */
+ r = (unsigned int)&insdram;
+ __asm__ __volatile__("mov pc, %0" : : "r"(r));
+#else
+ board_init_lowlevel_return();
+#endif
+}
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 5b8ac89..235f644 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -19,6 +19,7 @@ config ARCH_TEXT_BASE
default 0xa7e00000 if MACH_NESO
default 0x97f00000 if MACH_MX51_PDK
default 0x87f00000 if MACH_GUF_CUPID
+ default 0x93d00000 if MACH_TX25
config BOARDINFO
default "Eukrea CPUIMX25" if MACH_EUKREA_CPUIMX25
@@ -36,6 +37,7 @@ config BOARDINFO
default "Garz+Fricke Neso" if MACH_NESO
default "Freescale i.MX51 PDK" if MACH_FREESCALE_MX51_PDK
default "Garz+Fricke Cupid" if MACH_GUF_CUPID
+ default "Ka-Ro tx25" if MACH_TX25
config ARCH_IMX_INTERNAL_BOOT
bool "support internal boot mode"
@@ -175,6 +177,13 @@ config MACH_FREESCALE_MX25_3STACK
Say Y here if you are using the Freescale MX25 3stack board equipped
with a Freescale i.MX25 Processor
+config MACH_TX25
+ bool "Ka-Ro TX25"
+ select MACH_HAS_LOWLEVEL_INIT
+ select HAVE_MMU
+ help
+ Say Y here if you are using the Ka-Ro tx25 board
+
endchoice
endif
--
1.7.2.3
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