summaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
Diffstat (limited to 'doc')
-rw-r--r--doc/README.imx3129
-rw-r--r--doc/README.mx3117
-rw-r--r--doc/uImage.FIT/multi.its2
3 files changed, 31 insertions, 17 deletions
diff --git a/doc/README.imx31 b/doc/README.imx31
new file mode 100644
index 0000000..91ef766
--- /dev/null
+++ b/doc/README.imx31
@@ -0,0 +1,29 @@
+U-Boot for Freescale i.MX31
+
+This file contains information for the port of U-Boot to the Freescale
+i.MX31 SoC.
+
+1. CONFIGURATION OPTIONS/SETTINGS
+---------------------------------
+
+1.1 Configuration of MC13783 SPI bus
+------------------------------------
+ The power management companion chip MC13783 is connected to the
+ i.MX31 via an SPI bus. Use the following configuration options
+ to setup the bus and chip select used for a particular board.
+
+ CONFIG_MC13783_SPI_BUS -- defines the SPI bus the MC13783 is connected to.
+ Note that 0 is CSPI1, 1 is CSPI2 and 2 is CSPI3.
+ CONFIG_MC13783_SPI_CS -- define the chip select the MC13783 s connected to.
+
+1.2 Timer precision
+-------------------
+ CONFIG_MX31_TIMER_HIGH_PRECISION
+
+ Enable higher precision timer. The low-precision timer
+ (default) provides approximately 4% error, whereas the
+ high-precision timer is about 0.4% accurate. The extra
+ accuracy is achieved at the cost of higher computational
+ overhead, which, in places where time is measured, should
+ not be critical, so, it should be safe to enable this
+ option.
diff --git a/doc/README.mx31 b/doc/README.mx31
deleted file mode 100644
index 291c2f3..0000000
--- a/doc/README.mx31
+++ /dev/null
@@ -1,17 +0,0 @@
-U-Boot for Freescale i.MX31
-
-This file contains information for the port of U-Boot to the Freescale
-i.MX31 SoC.
-
-1. CONFIGURATION OPTIONS/SETTINGS
----------------------------------
-
-1.1 Configuration of MC13783 SPI bus
-------------------------------------
-The power management companion chip MC13783 is connected to the
-i.MX31 via an SPI bus. Use the following configuration options
-to setup the bus and chip select used for a particular board.
-
-CONFIG_MC13783_SPI_BUS -- defines the SPI bus the MC13783 is connected to.
- Note that 0 is CSPI1, 1 is CSPI2 and 2 is CSPI3.
-CONFIG_MC13783_SPI_CS -- define the chip select the MC13783 s connected to.
diff --git a/doc/uImage.FIT/multi.its b/doc/uImage.FIT/multi.its
index b992962..1d8c2db 100644
--- a/doc/uImage.FIT/multi.its
+++ b/doc/uImage.FIT/multi.its
@@ -56,6 +56,7 @@
data = /incbin/("./eldk-4.2-ramdisk");
type = "ramdisk";
arch = "ppc";
+ os = "linux";
compression = "gzip";
hash@1 {
algo = "sha1";
@@ -67,6 +68,7 @@
data = /incbin/("./eldk-3.1-ramdisk");
type = "ramdisk";
arch = "ppc";
+ os = "linux";
compression = "gzip";
hash@1 {
algo = "crc32";