This function can fail if the device tree runs out of space. Rather than
silently booting with an incomplete device tree, allow the failure to be
detected.
Unfortunately this involves changing a lot of places in the code. I have
not changed behvaiour to return an error where one is not currently
returned, to avoid unexpected breakage.
Eventually it would be nice to allow boards to register functions to be
called to update the device tree. This would avoid all the many functions
to do this. However it's not clear yet if this should be done using driver
model or with a linker list. This work is left for later.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
find_tlb_idx() is called in board_early_init_r() on multiple boards.
The return value is not checked before being used to disable a TLB.
In normal case the return value wouldn't be -1. In case of a mis-
configuration during porting to a new board, checking the return value
may be helpful to reveal some user errors.
Signed-off-by: York Sun <yorksun@freescale.com>
Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs.
The similar DDR controllers will be used for ARM-based SoCs.
Signed-off-by: York Sun <yorksun@freescale.com>
There were a number of shared files that were using
CONFIG_SYS_MPC85xx_DDR_ADDR, or CONFIG_SYS_MPC86xx_DDR_ADDR, and
several variants (DDR2, DDR3). A recent patchset added
85xx-specific ones to code which was used by 86xx systems.
After reviewing places where these constants were used, and
noting that the type definitions of the pointers assigned to
point to those addresses were the same, the cleanest approach
to fixing this problem was to unify the namespace for the
85xx, 83xx, and 86xx DDR address definitions.
This patch does:
s/CONFIG_SYS_MPC8.xx_DDR/CONFIG_SYS_MPC8xxx_DDR/g
All 85xx, 86xx, and 83xx have been built with this change.
Signed-off-by: Andy Fleming <afleming@freescale.com>
Tested-by: Andy Fleming <afleming@freescale.com>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
In the p1023rds, when system boots from nor flash, kernel only accesses nor
flash and can not access nand flash with BR0/OR0; when system boots from
nand flash, kernel only accesses nand flash and can not access nor flash
with BR0/OR0.
Default device tree nor and nand node should have the following structure:
Example:
nor_flash: nor@0,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "cfi-flash";
reg = <0x0 0x0 0x02000000>;
bank-width = <2>;
device-width = <1>;
status = "okay";
partition@0 {
label = "ramdisk";
reg = <0x00000000 0x01c00000>;
};
}
nand_flash: nand@1,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,p1023-fcm-nand",
"fsl,elbc-fcm-nand";
reg = <0x2 0x0 0x00040000>;
status = "disabled";
u-boot-nand@0 {
/* This location must not be altered */
/* 1MB for u-boot Bootloader Image */
reg = <0x0 0x00100000>;
read-only;
};
}
When booting from nor flash, the status of nor node is enabled and the
status of nand node is disabled in the default dts file, so do not do
anything.
But, when booting from nand flash, need to do some operations:
o Disable the NOR node by setting status = "disabled";
o Enable the NAND node by setting status = "okay";
Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
The P1023 has two 1G ethernet controllers the first can run in
SGMII, RGMII, or RMII. The second can only do SGMII & RGMII.
We need to setup a for SoC & board registers based on our various
configuration for ethernet to function properly on the board.
Removed CONFIG_SYS_FMAN_FW as its not used anywhere.
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Lei Xu <B33228@freescale.com>
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@freescale.com>
Signed-off-by: Shaohui Xie <b21989@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
The P1023RDS board is the reference board for the P1023 SoC.
Add support for booting it from NOR or NAND, with fixed 2G of DDR, PCIe,
UART, I2C, etc.
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Signed-off-by: Lei Xu <B33228@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Simon Glass
York Sun
Wolfgang Denk
Chunhe Lan
Andy Fleming
ramneek mehresh
Roy Zang