ARM i.MX35: Add support for the Amazon Kindle3
The Amazon Model No. D00901 Kindle3 is an E-Book reader based on the i.MX35 SOC. The device boots in internal boot mode from a build-in eMMC, alternatively the device may be set into USB-downloader mode when the Vol+ key is pressed on startup. Add support for this device and make barebox a drop-in replacement for the factory shipped u-boot image. Constraints for the use as drop-in replacement: - imximg header (offset 0x400) has a maximum size of 2kB minus 16 byte since the last 16 bytes are used to store a vendor specific hardware desctription identifier - the bootloader space (application plus env) is limited to 256kB minus 16 bytes when installed with offset of 4kB (the u-boot offset was 3kB). A vendor specific device identifier is stored in the gap between application and kernel. The vendor specific identifiers should not be overwritten. Notable features: - Support for eMMC, USB, UART, I2C, SPI and Keys (except keyboard) - Full support for vendor specific ATAGs - usbserial barebox console access by pressing Select button at startup, alternatively full console support on connector J14. Signed-off-by: Alexander Kurz <akurz@blala.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Alexander Kurz
Sascha Hauer
parent
a157195b73
commit
4f0abb8db0
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@ -0,0 +1,28 @@
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Amazon Kindle 3 "Kindle Keyboard" Model No. D00901
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==================================================
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This e-book reader is based on a Freescale i.MX35 SOC.
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The device is equiped with:
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* 256MiB synchronous dynamic RAM
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* 4GiB eMMC
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* a MC13892 PMIC
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The device boots in internal boot mode from eMMC and is shipped with a
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vendor modified u-boot imximage.
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To upload and run a new bootloader the device can be put into USB-downloader
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mode by the SOC microcode when Vol+ is pressed during startup. A new USB
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device "SE Blank RINGO" should appear, barebox may be uploaded using
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$ scripts/imx/imx-usb-loader barebox.imximg
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Note: a USB serial ACM console will be launched by a barebox init script
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when the cursor select key is pressed during startup (e.g. before running
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imx-usb-loader)
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Barebox may be used as drop-in replacement for the shipped bootloader.
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When installing the barebox imximg on the eMMC take care not to overwrite
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the partition table and vendor supplied serial numbers stored on the eMMC.
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e.g. just write the imx-header and the application section:
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memcpy -b -s barebox.imximg -d /dev/disk0.imx_header 1024 0 1024
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memcpy -b -s barebox.imximg -d /dev/disk0.self 4096 0 195584
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@ -235,6 +235,7 @@ imxcfg-$(CONFIG_MACH_FREESCALE_MX35_3STACK) += $(boarddir)/freescale-mx35-3ds/fl
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imxcfg-$(CONFIG_MACH_TQMA53) += $(boarddir)/tqma53/flash-header.imxcfg
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imxcfg-$(CONFIG_MACH_EUKREA_CPUIMX25) += $(boarddir)/eukrea_cpuimx25/flash-header.imxcfg
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imxcfg-$(CONFIG_MACH_EUKREA_CPUIMX35) += $(boarddir)/eukrea_cpuimx35/flash-header.imxcfg
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imxcfg-$(CONFIG_MACH_KINDLE3) += $(boarddir)/kindle3/flash-header.imxcfg
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imxcfg-$(CONFIG_TX53_REV_1011) += $(boarddir)/karo-tx53/flash-header-tx53-rev1011.imxcfg
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imxcfg-$(CONFIG_TX53_REV_XX30) += $(boarddir)/karo-tx53/flash-header-tx53-revxx30.imxcfg
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ifneq ($(imxcfg-y),)
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@ -59,6 +59,7 @@ obj-$(CONFIG_MACH_HIGHBANK) += highbank/
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obj-$(CONFIG_MACH_IMX21ADS) += freescale-mx21-ads/
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obj-$(CONFIG_MACH_IMX233_OLINUXINO) += imx233-olinuxino/
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obj-$(CONFIG_MACH_IMX27ADS) += freescale-mx27-ads/
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obj-$(CONFIG_MACH_KINDLE3) += kindle3/
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obj-$(CONFIG_MACH_LENOVO_IX4_300D) += lenovo-ix4-300d/
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obj-$(CONFIG_MACH_LUBBOCK) += lubbock/
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obj-$(CONFIG_MACH_MAINSTONE) += mainstone/
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@ -0,0 +1,2 @@
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obj-y += kindle3.o
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lwl-y += lowlevel.o
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@ -0,0 +1,7 @@
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#!/bin/sh
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# Boot the Amazon factory-shipped kernel uimage stored on
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# the eMMC at MOVINAND_OFFSET_KERNEL=266240.
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global linux.bootargs.dyn.root="root=/dev/mmcblk0p1 ro"
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bootm -c -a 0x80008000 /dev/disk0.kernel
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#!/bin/sh
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global board.serial16
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global board.revision16
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# 16-byte alphanumeric containing the serial number
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# SN is the first 16 bytes before the bootloader
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if test -b /dev/disk0.serial; then
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if memcpy -s /dev/disk0.serial -d tmp_serial16 -b 0 0 16; then
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readf tmp_serial16 global.board.serial16
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fi
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fi
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[ -f tmp_serial16 ] && rm tmp_serial16
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# 16-byte alphanumeric containing the board revision
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if test -b /dev/disk0.imx_header; then
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if memcpy -s /dev/disk0.imx_header -d tmp_revision16 -b 2032 0 16; then
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readf tmp_revision16 global.board.revision16
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fi
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fi
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[ -f tmp_revision16 ] && rm tmp_revision16
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@ -0,0 +1,8 @@
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#!/bin/sh
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# Fiveway device select key activates usbserial access for 60s
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echo
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if gpio_get_value 63; then
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usbserial
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global.autoboot_timeout=60
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fi
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@ -0,0 +1 @@
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3
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mmc_kernel
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mem=256M ip=none
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@ -0,0 +1 @@
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console=ttymxc0,115200
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@ -0,0 +1 @@
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lpj=2555904
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@ -0,0 +1,24 @@
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soc imx35
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loadaddr 0x87eff400
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dcdofs 0x400
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wm 32 0x53f80004 0x00821000
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wm 32 0x53f80004 0x00821000
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wm 32 0xb8001010 0x00000002
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wm 32 0xb8001010 0x00000004
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wm 32 0xb8001004 0x0019672f
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wm 32 0xb8001000 0x93100000
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wm 8 0x80000400 0xda
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wm 32 0xb8001000 0xa3100000
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wm 32 0x80000000 0x12344321
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wm 32 0x80000000 0x12344321
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wm 32 0xb8001000 0xb3100000
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wm 8 0x80000033 0xda
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wm 8 0x82000000 0xff
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wm 32 0xb8001000 0x83226080
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wm 32 0xb8001010 0x0000000c
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wm 32 0x80000000 0xdeadbeef
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wm 32 0xb8001030 0x00e78000
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wm 32 0x43fac004 0x00000004
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wm 32 0x43fac328 0x00002100
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wm 32 0x43fac7d0 0x00000000
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@ -0,0 +1,318 @@
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/*
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* (C) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
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* (C) 2016 Alexander Kurz <akurz@blala.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Board support for the Amazon Kindle 3rd generation
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*/
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#include <common.h>
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#include <command.h>
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#include <driver.h>
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#include <init.h>
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#include <bootsource.h>
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#include <io.h>
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#include <environment.h>
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#include <generated/mach-types.h>
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#include <asm/armlinux.h>
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#include <asm/mmu.h>
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#include <asm/setup.h>
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#include <mach/imx35-regs.h>
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#include <mach/imx-pll.h>
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#include <mach/iomux-mx35.h>
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#include <mach/devices-imx35.h>
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#include <mach/generic.h>
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#include <usb/fsl_usb2.h>
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#include <mach/usb.h>
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#include <mach/spi.h>
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#include <spi/spi.h>
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#include <magicvar.h>
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/* 16 byte id for serial number */
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#define ATAG_SERIAL16 0x5441000a
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/* 16 byte id for a board revision */
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#define ATAG_REVISION16 0x5441000b
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struct char16_tag {
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char data[16];
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};
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static struct tag *setup_16char_tag(struct tag *params, uint32_t tag,
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const char *value)
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{
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struct char16_tag *target;
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target = ((void *) params) + sizeof(struct tag_header);
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params->hdr.tag = tag;
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params->hdr.size = tag_size(char16_tag);
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memcpy(target->data, value, sizeof target->data);
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return tag_next(params);
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}
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static const char *get_env_16char_tag(const char *tag)
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{
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static const char *default16 = "0000000000000000";
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const char *value;
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value = getenv(tag);
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if (!value) {
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printf("env var %s not found, using default\n", tag);
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return default16;
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}
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if (strlen(value) != 16) {
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printf("env var %s: expecting 16 characters, using default\n",
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tag);
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return default16;
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}
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printf("%s: %s\n", tag, value);
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return value;
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}
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BAREBOX_MAGICVAR_NAMED(global_atags_serial16, global.board.serial16,
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"Pass the kindle Serial as vendor-specific ATAG to linux");
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BAREBOX_MAGICVAR_NAMED(global_atags_revision16, global.board.revision16,
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"Pass the kindle BoardId as vendor-specific ATAG to linux");
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/* The Kindle3 Kernel expects two custom ATAGs, ATAG_REVISION16 describing
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* the board and ATAG_SERIAL16 to identify the individual device.
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*/
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struct tag *kindle3_append_atags(struct tag *params)
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{
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params = setup_16char_tag(params, ATAG_SERIAL16,
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get_env_16char_tag("global.board.serial16"));
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params = setup_16char_tag(params, ATAG_REVISION16,
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get_env_16char_tag("global.board.revision16"));
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return params;
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}
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static struct fsl_usb2_platform_data kindle3_usb_info = {
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.operating_mode = FSL_USB2_DR_DEVICE,
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.phy_mode = FSL_USB2_PHY_UTMI,
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};
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/* SPI master devices. */
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static int kindle3_spi0_internal_chipselect[] = {
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IMX_GPIO_NR(1, 18),
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};
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static struct spi_imx_master kindle3_spi0_info = {
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.chipselect = kindle3_spi0_internal_chipselect,
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.num_chipselect = ARRAY_SIZE(kindle3_spi0_internal_chipselect),
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};
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static const struct spi_board_info kindle3_spi_board_info[] = {
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{
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.name = "mc13892",
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.bus_num = 0,
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.chip_select = 0,
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.mode = SPI_CS_HIGH,
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},
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};
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static int kindle3_mmu_init(void)
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{
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l2x0_init((void __iomem *)0x30000000, 0x00030024, 0x00000000);
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return 0;
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}
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postmmu_initcall(kindle3_mmu_init);
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static int kindle3_devices_init(void)
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{
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imx35_add_mmc0(NULL);
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if (IS_ENABLED(CONFIG_USB_GADGET)) {
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unsigned int tmp;
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/* Workaround ENGcm09152 */
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tmp = readl(MX35_USB_OTG_BASE_ADDR + 0x608);
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writel(tmp | (1 << 23), MX35_USB_OTG_BASE_ADDR + 0x608);
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add_generic_device("fsl-udc", DEVICE_ID_DYNAMIC, NULL,
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MX35_USB_OTG_BASE_ADDR, 0x200,
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IORESOURCE_MEM, &kindle3_usb_info);
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}
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/* The kindle3 related linux patch published by amazon bluntly
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* renamed MACH_MX35_3DS to MACH_MX35_LUIGI
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*/
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armlinux_set_architecture(MACH_TYPE_MX35_3DS);
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/* Compatibility ATAGs for original kernel */
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armlinux_set_atag_appender(kindle3_append_atags);
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return 0;
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}
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device_initcall(kindle3_devices_init);
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static iomux_v3_cfg_t kindle3_pads[] = {
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/* UART1 */
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MX35_PAD_RXD1__UART1_RXD_MUX,
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MX35_PAD_TXD1__UART1_TXD_MUX,
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/* eMMC */
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MX35_PAD_SD1_CMD__ESDHC1_CMD,
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MX35_PAD_SD1_CLK__ESDHC1_CLK,
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MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
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MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
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MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
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MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
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/* USB */
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MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR,
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MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC,
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/* I2C 1+2 */
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MX35_PAD_I2C1_CLK__I2C1_SCL,
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MX35_PAD_I2C1_DAT__I2C1_SDA,
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MX35_PAD_I2C2_CLK__I2C2_SCL,
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MX35_PAD_I2C2_DAT__I2C2_SDA,
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/* SPI */
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MX35_PAD_CSPI1_SS0__GPIO1_18,
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MX35_PAD_CSPI1_SCLK__CSPI1_SCLK,
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MX35_PAD_CSPI1_MOSI__CSPI1_MOSI,
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MX35_PAD_CSPI1_MISO__CSPI1_MISO,
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MX35_PAD_CSPI1_SPI_RDY__CSPI1_RDY,
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/* fiveway device: up, down, left, right, select */
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MX35_PAD_ATA_DATA14__GPIO2_27,
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MX35_PAD_ATA_DATA15__GPIO2_28,
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MX35_PAD_TX5_RX0__GPIO1_10,
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MX35_PAD_ATA_BUFF_EN__GPIO2_30,
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IOMUX_PAD(0x728, 0x2c4, 5, 0x8c8, 1,
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PAD_CTL_PUS_100K_UP | PAD_CTL_HYS | PAD_CTL_DVS),
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/* Volume keys: up, down */
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MX35_PAD_SCKR__GPIO1_4,
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MX35_PAD_FSR__GPIO1_5,
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};
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static int kindle3_part_init(void)
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{
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devfs_add_partition("disk0", SZ_1K, 2 * SZ_1K,
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DEVFS_PARTITION_FIXED, "disk0.imx_header");
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devfs_add_partition("disk0", 4 * SZ_1K, (192 - 1) * SZ_1K,
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DEVFS_PARTITION_FIXED, "disk0.self");
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devfs_add_partition("disk0", (192 + 3) * SZ_1K, SZ_64K,
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DEVFS_PARTITION_FIXED, "env0");
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devfs_add_partition("disk0", (256 + 3) * SZ_1K, SZ_1K,
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DEVFS_PARTITION_FIXED, "disk0.serial");
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devfs_add_partition("disk0", (256 + 4) * SZ_1K, 3407872,
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DEVFS_PARTITION_FIXED, "disk0.kernel");
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devfs_add_partition("disk0", 3674112, SZ_256K,
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DEVFS_PARTITION_FIXED, "disk0.waveform");
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return 0;
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}
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late_initcall(kindle3_part_init);
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static int imx35_console_init(void)
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{
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mxc_iomux_v3_setup_multiple_pads(kindle3_pads,
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ARRAY_SIZE(kindle3_pads));
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barebox_set_model("Kindle3");
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barebox_set_hostname("kindle3");
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imx35_add_uart0();
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spi_register_board_info(kindle3_spi_board_info,
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ARRAY_SIZE(kindle3_spi_board_info));
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imx35_add_spi0(&kindle3_spi0_info);
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imx35_add_i2c0(NULL);
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imx35_add_i2c1(NULL);
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return 0;
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}
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console_initcall(imx35_console_init);
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static int kindle3_core_setup(void)
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{
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u32 tmp;
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/* AIPS setup - Only setup MPROTx registers.
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* The PACR default values are good.
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*/
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/*
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* Set all MPROTx to be non-bufferable, trusted for R/W,
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* not forced to user-mode.
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*/
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writel(0x77777777, MX35_AIPS1_BASE_ADDR);
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writel(0x77777777, MX35_AIPS1_BASE_ADDR + 0x4);
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writel(0x77777777, MX35_AIPS2_BASE_ADDR);
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writel(0x77777777, MX35_AIPS2_BASE_ADDR + 0x4);
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/*
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* Clear the on and off peripheral modules Supervisor Protect bit
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* for SDMA to access them. Did not change the AIPS control registers
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* (offset 0x20) access type
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*/
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writel(0x0, MX35_AIPS1_BASE_ADDR + 0x40);
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writel(0x0, MX35_AIPS1_BASE_ADDR + 0x44);
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writel(0x0, MX35_AIPS1_BASE_ADDR + 0x48);
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writel(0x0, MX35_AIPS1_BASE_ADDR + 0x4C);
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tmp = readl(MX35_AIPS1_BASE_ADDR + 0x50);
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tmp &= 0x00FFFFFF;
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writel(tmp, MX35_AIPS1_BASE_ADDR + 0x50);
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writel(0x0, MX35_AIPS2_BASE_ADDR + 0x40);
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writel(0x0, MX35_AIPS2_BASE_ADDR + 0x44);
|
||||
writel(0x0, MX35_AIPS2_BASE_ADDR + 0x48);
|
||||
writel(0x0, MX35_AIPS2_BASE_ADDR + 0x4C);
|
||||
tmp = readl(MX35_AIPS2_BASE_ADDR + 0x50);
|
||||
tmp &= 0x00FFFFFF;
|
||||
writel(tmp, MX35_AIPS2_BASE_ADDR + 0x50);
|
||||
|
||||
/* MAX (Multi-Layer AHB Crossbar Switch) setup */
|
||||
|
||||
/* MPR - priority is M4 > M2 > M3 > M5 > M0 > M1 */
|
||||
#define MAX_PARAM1 0x00302154
|
||||
writel(MAX_PARAM1, MX35_MAX_BASE_ADDR + 0x0); /* for S0 */
|
||||
writel(MAX_PARAM1, MX35_MAX_BASE_ADDR + 0x100); /* for S1 */
|
||||
writel(MAX_PARAM1, MX35_MAX_BASE_ADDR + 0x200); /* for S2 */
|
||||
writel(MAX_PARAM1, MX35_MAX_BASE_ADDR + 0x300); /* for S3 */
|
||||
writel(MAX_PARAM1, MX35_MAX_BASE_ADDR + 0x400); /* for S4 */
|
||||
|
||||
/* SGPCR - always park on last master */
|
||||
writel(0x10, MX35_MAX_BASE_ADDR + 0x10); /* for S0 */
|
||||
writel(0x10, MX35_MAX_BASE_ADDR + 0x110); /* for S1 */
|
||||
writel(0x10, MX35_MAX_BASE_ADDR + 0x210); /* for S2 */
|
||||
writel(0x10, MX35_MAX_BASE_ADDR + 0x310); /* for S3 */
|
||||
writel(0x10, MX35_MAX_BASE_ADDR + 0x410); /* for S4 */
|
||||
|
||||
/* MGPCR - restore default values */
|
||||
writel(0x0, MX35_MAX_BASE_ADDR + 0x800); /* for M0 */
|
||||
writel(0x0, MX35_MAX_BASE_ADDR + 0x900); /* for M1 */
|
||||
writel(0x0, MX35_MAX_BASE_ADDR + 0xa00); /* for M2 */
|
||||
writel(0x0, MX35_MAX_BASE_ADDR + 0xb00); /* for M3 */
|
||||
writel(0x0, MX35_MAX_BASE_ADDR + 0xc00); /* for M4 */
|
||||
writel(0x0, MX35_MAX_BASE_ADDR + 0xd00); /* for M5 */
|
||||
|
||||
/*
|
||||
* M3IF Control Register (M3IFCTL)
|
||||
* MRRP[0] = L2CC0 not on priority list (0 << 0) = 0x00000000
|
||||
* MRRP[1] = MAX1 not on priority list (0 << 0) = 0x00000000
|
||||
* MRRP[2] = L2CC1 not on priority list (0 << 0) = 0x00000000
|
||||
* MRRP[3] = USB not on priority list (0 << 0) = 0x00000000
|
||||
* MRRP[4] = SDMA not on priority list (0 << 0) = 0x00000000
|
||||
* MRRP[5] = GPU not on priority list (0 << 0) = 0x00000000
|
||||
* MRRP[6] = IPU1 on priority list (1 << 6) = 0x00000040
|
||||
* MRRP[7] = IPU2 not on priority list (0 << 0) = 0x00000000
|
||||
* ------------
|
||||
* 0x00000040
|
||||
*/
|
||||
writel(0x40, MX35_M3IF_BASE_ADDR);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
core_initcall(kindle3_core_setup);
|
||||
|
|
@ -0,0 +1,142 @@
|
|||
/*
|
||||
*
|
||||
* (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
|
||||
* (c) 2016 Alexander Kurz <akurz@blala.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.
|
||||
*
|
||||
*/
|
||||
#include <common.h>
|
||||
#include <init.h>
|
||||
#include <mach/imx35-regs.h>
|
||||
#include <mach/imx-pll.h>
|
||||
#include <mach/esdctl.h>
|
||||
#include <asm/cache-l2x0.h>
|
||||
#include <io.h>
|
||||
#include <mach/imx-nand.h>
|
||||
#include <asm/barebox-arm.h>
|
||||
#include <asm/barebox-arm-head.h>
|
||||
#include <asm/sections.h>
|
||||
#include <asm-generic/memory_layout.h>
|
||||
#include <asm/system.h>
|
||||
|
||||
void __bare_init __naked barebox_arm_reset_vector(void)
|
||||
{
|
||||
uint32_t r, s;
|
||||
unsigned long ccm_base = MX35_CCM_BASE_ADDR;
|
||||
register uint32_t loops = 0x20000;
|
||||
|
||||
arm_cpu_lowlevel_init();
|
||||
|
||||
arm_setup_stack(MX35_IRAM_BASE_ADDR + MX35_IRAM_SIZE - 8);
|
||||
|
||||
r = get_cr();
|
||||
r |= CR_Z; /* Flow prediction (Z) */
|
||||
r |= CR_U; /* unaligned accesses */
|
||||
r |= CR_FI; /* Low Int Latency */
|
||||
|
||||
__asm__ __volatile__("mrc p15, 0, %0, c1, c0, 1" : "=r"(s));
|
||||
s |= 0x7;
|
||||
__asm__ __volatile__("mcr p15, 0, %0, c1, c0, 1" : : "r"(s));
|
||||
|
||||
set_cr(r);
|
||||
|
||||
r = 0;
|
||||
__asm__ __volatile__("mcr p15, 0, %0, c15, c2, 4" : : "r"(r));
|
||||
|
||||
/*
|
||||
* Branch predicition is now enabled. Flush the BTAC to ensure a valid
|
||||
* starting point. Don't flush BTAC while it is disabled to avoid
|
||||
* ARM1136 erratum 408023.
|
||||
*/
|
||||
__asm__ __volatile__("mcr p15, 0, %0, c7, c5, 6" : : "r"(r));
|
||||
|
||||
/* invalidate I cache and D cache */
|
||||
__asm__ __volatile__("mcr p15, 0, %0, c7, c7, 0" : : "r"(r));
|
||||
|
||||
/* invalidate TLBs */
|
||||
__asm__ __volatile__("mcr p15, 0, %0, c8, c7, 0" : : "r"(r));
|
||||
|
||||
/* Drain the write buffer */
|
||||
__asm__ __volatile__("mcr p15, 0, %0, c7, c10, 4" : : "r"(r));
|
||||
|
||||
/* Also setup the Peripheral Port Remap register inside the core */
|
||||
r = 0x40000015; /* start from AIPS 2GB region */
|
||||
__asm__ __volatile__("mcr p15, 0, %0, c15, c2, 4" : : "r"(r));
|
||||
|
||||
/*
|
||||
* End of ARM1136 init
|
||||
*/
|
||||
|
||||
writel(0x003F4208, ccm_base + MX35_CCM_CCMR);
|
||||
|
||||
/* Set MPLL , arm clock and ahb clock*/
|
||||
writel(MPCTL_PARAM_532, ccm_base + MX35_CCM_MPCTL);
|
||||
|
||||
writel(PPCTL_PARAM_300, ccm_base + MX35_CCM_PPCTL);
|
||||
writel(0x00001000, ccm_base + MX35_CCM_PDR0);
|
||||
|
||||
r = readl(ccm_base + MX35_CCM_CGR0);
|
||||
r |= 0x3 << MX35_CCM_CGR0_CSPI1_SHIFT;
|
||||
r |= 0x3 << MX35_CCM_CGR0_EPIT1_SHIFT;
|
||||
r |= 0x3 << MX35_CCM_CGR0_ESDHC1_SHIFT;
|
||||
writel(r, ccm_base + MX35_CCM_CGR0);
|
||||
|
||||
r = readl(ccm_base + MX35_CCM_CGR1);
|
||||
r |= 0x3 << MX35_CCM_CGR1_IOMUX_SHIFT;
|
||||
r |= 0x3 << MX35_CCM_CGR1_I2C1_SHIFT;
|
||||
r |= 0x3 << MX35_CCM_CGR1_I2C2_SHIFT;
|
||||
r |= 0x3 << MX35_CCM_CGR1_GPIO1_SHIFT;
|
||||
r |= 0x3 << MX35_CCM_CGR1_GPIO2_SHIFT;
|
||||
writel(r, ccm_base + MX35_CCM_CGR1);
|
||||
|
||||
r = readl(MX35_L2CC_BASE_ADDR + L2X0_AUX_CTRL);
|
||||
r |= 0x1000;
|
||||
writel(r, MX35_L2CC_BASE_ADDR + L2X0_AUX_CTRL);
|
||||
|
||||
/* Skip SDRAM initialization if we run from RAM */
|
||||
r = get_pc();
|
||||
if (r > 0x80000000 && r < 0x90000000)
|
||||
goto out;
|
||||
|
||||
/* Init Mobile DDR */
|
||||
writel(0x0000000E, MX35_ESDCTL_BASE_ADDR + IMX_ESDMISC);
|
||||
/* ESD_MISC: Enable DDR SDRAM */
|
||||
writel(0x00000004, MX35_ESDCTL_BASE_ADDR + IMX_ESDMISC);
|
||||
__asm__ volatile ("1:\n"
|
||||
"subs %0, %1, #1\n"
|
||||
"bne 1b" : "=r" (loops) : "0" (loops));
|
||||
|
||||
writel(0x0019672f, MX35_ESDCTL_BASE_ADDR + IMX_ESDCFG0);
|
||||
/* ESD_ESDCTL0 : select Prechare-All mode */
|
||||
writel(0x93220000, MX35_ESDCTL_BASE_ADDR + IMX_ESDCTL0);
|
||||
writeb(0xda, MX35_CSD0_BASE_ADDR + 0x400);
|
||||
/* ESD_ESDCTL0: Auto Refresh command */
|
||||
writel(0xA3220000, MX35_ESDCTL_BASE_ADDR + IMX_ESDCTL0);
|
||||
writeb(0xda, MX35_CSD0_BASE_ADDR);
|
||||
writeb(0xda, MX35_CSD0_BASE_ADDR);
|
||||
/* ESD_ESDCTL0: Load Mode Register */
|
||||
writel(0xB3220000, MX35_ESDCTL_BASE_ADDR + IMX_ESDCTL0);
|
||||
writeb(0xda, MX35_CSD0_BASE_ADDR + 0x33);
|
||||
writeb(0xff, MX35_CSD0_BASE_ADDR + 0x2000000);
|
||||
/* ESD_ESDCTL0: enable Auto-Refresh */
|
||||
writel(0x83228080, MX35_ESDCTL_BASE_ADDR + IMX_ESDCTL0);
|
||||
|
||||
writel(0x0000000c, MX35_ESDCTL_BASE_ADDR + IMX_ESDMISC);
|
||||
writel(0xdeadbeef, MX35_CSD0_BASE_ADDR);
|
||||
writel(0x00e78000, MX35_CSD0_BASE_ADDR + 0x1030);
|
||||
|
||||
out:
|
||||
imx35_barebox_entry(NULL);
|
||||
}
|
||||
|
|
@ -0,0 +1,65 @@
|
|||
CONFIG_ARCH_IMX=y
|
||||
CONFIG_BAREBOX_MAX_IMAGE_SIZE=0x30000
|
||||
CONFIG_MACH_KINDLE3=y
|
||||
CONFIG_ARCH_IMX_USBLOADER=y
|
||||
CONFIG_IMX_IIM=y
|
||||
CONFIG_AEABI=y
|
||||
CONFIG_ARM_BOARD_APPEND_ATAG=y
|
||||
CONFIG_ARM_BOARD_PREPEND_ATAG=y
|
||||
CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
|
||||
CONFIG_PBL_IMAGE=y
|
||||
CONFIG_PBL_RELOCATABLE=y
|
||||
CONFIG_IMAGE_COMPRESSION_XZKERN=y
|
||||
CONFIG_MALLOC_SIZE=0x2000000
|
||||
CONFIG_MALLOC_TLSF=y
|
||||
CONFIG_RELOCATABLE=y
|
||||
CONFIG_HUSH_FANCY_PROMPT=y
|
||||
CONFIG_CMDLINE_EDITING=y
|
||||
CONFIG_AUTO_COMPLETE=y
|
||||
CONFIG_BOOTM_OFTREE=y
|
||||
CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW=y
|
||||
CONFIG_DEFAULT_ENVIRONMENT_PATH="arch/arm/boards/kindle3/env/"
|
||||
CONFIG_RESET_SOURCE=y
|
||||
CONFIG_CMD_DMESG=y
|
||||
CONFIG_LONGHELP=y
|
||||
CONFIG_CMD_MEMINFO=y
|
||||
CONFIG_CMD_MMC_EXTCSD=y
|
||||
# CONFIG_CMD_BOOTU is not set
|
||||
CONFIG_CMD_BOOTZ=y
|
||||
CONFIG_CMD_GO=y
|
||||
CONFIG_CMD_LOADY=y
|
||||
CONFIG_CMD_RESET=y
|
||||
CONFIG_CMD_UIMAGE=y
|
||||
CONFIG_CMD_PARTITION=y
|
||||
CONFIG_CMD_EXPORT=y
|
||||
CONFIG_CMD_DEFAULTENV=y
|
||||
CONFIG_CMD_LOADENV=y
|
||||
CONFIG_CMD_PRINTENV=y
|
||||
CONFIG_CMD_MAGICVAR=y
|
||||
CONFIG_CMD_MAGICVAR_HELP=y
|
||||
CONFIG_CMD_SAVEENV=y
|
||||
CONFIG_CMD_READF=y
|
||||
CONFIG_CMD_SLEEP=y
|
||||
CONFIG_CMD_EDIT=y
|
||||
CONFIG_CMD_READLINE=y
|
||||
CONFIG_CMD_TIMEOUT=y
|
||||
CONFIG_CMD_CRC=y
|
||||
CONFIG_CMD_CRC_CMP=y
|
||||
CONFIG_CMD_MEMTEST=y
|
||||
CONFIG_CMD_GPIO=y
|
||||
CONFIG_CMD_I2C=y
|
||||
CONFIG_CMD_SPI=y
|
||||
CONFIG_CMD_USBGADGET=y
|
||||
CONFIG_DRIVER_SPI_IMX=y
|
||||
CONFIG_I2C=y
|
||||
CONFIG_I2C_IMX=y
|
||||
CONFIG_USB_GADGET=y
|
||||
CONFIG_USB_GADGET_SERIAL=y
|
||||
CONFIG_MCI=y
|
||||
CONFIG_MCI_STARTUP=y
|
||||
CONFIG_MCI_IMX_ESDHC=y
|
||||
CONFIG_MFD_MC13XXX=y
|
||||
CONFIG_FS_EXT4=y
|
||||
CONFIG_FS_FAT=y
|
||||
CONFIG_FS_FAT_WRITE=y
|
||||
CONFIG_FS_FAT_LFN=y
|
||||
|
|
@ -33,6 +33,7 @@ config ARCH_TEXT_BASE
|
|||
default 0x17800000 if MACH_SABRESD
|
||||
default 0x4fc00000 if MACH_REALQ7
|
||||
default 0x4fc00000 if MACH_GK802
|
||||
default 0x87f00000 if MACH_KINDLE3
|
||||
default 0x2fc00000 if MACH_TQMA6X
|
||||
default 0x4fc00000 if MACH_DFI_FS700_M60
|
||||
default 0x4fc00000 if MACH_UDOO
|
||||
|
|
@ -453,6 +454,14 @@ config MACH_GUF_CUPID
|
|||
Say Y here if you are using the Garz+Fricke Neso board equipped
|
||||
with a Freescale i.MX35 Processor
|
||||
|
||||
config MACH_KINDLE3
|
||||
bool "Amazon Kindle3"
|
||||
select ARCH_IMX35
|
||||
select ARCH_HAS_L2X0
|
||||
select HAVE_DEFAULT_ENVIRONMENT_NEW
|
||||
help
|
||||
Say Y here if you are using the Amazon Model No. D00901 Kindle
|
||||
|
||||
# ----------------------------------------------------------
|
||||
|
||||
comment "i.MX51 Boards"
|
||||
|
|
|
|||
Loading…
Reference in New Issue