U-Boot on Tegra30 currently selects a main CPU frequency that cannot be
supported at all on some SKUs, and needs higher VDD_CPU/VDD_CORE values
on some others. This can result in unreliable operation of the main CPUs.
Resolve this by switching to a CPU frequency that can be supported by any
SKU. According to the following link, the maximum supported CPU frequency
of the slowest Tegra30 SKU is 600MHz:
repo http://nv-tegra.nvidia.com/gitweb/?p=linux-2.6.git;a=summary
branch l4t/l4t-r16-r2
path arch/arm/mach-tegra/tegra3_dvfs.c
table cpu_dvfs_table[]
According to that same table, the minimum VDD_CPU required to operate at
that frequency across all SKUs is 1.007V. Given the adjustment resolution
of the TPS65911 PMIC that's used on all Tegra30-based boards we support,
we'll end up using 1.0125V instead.
At that VDD_CPU, tegra3_get_core_floor_mv() in that same file dictates
that VDD_CORE must be at least 1.2V on all SKUs. According to
tegra_core_speedo_mv() (in tegra3_speedo.c in the same source tree),
that voltage is safe for all SKUs.
An alternative would be to port much of the code from tegra3_dvfs.c and
tegra3_speedo.c in the kernel tree mentioned above. That's more work
than I want to take on right now.
While all the currently supported boards use the same regulator chip for
VDD_CPU, different types of regulators are used for VDD_CORE. Hence, we
add some small conditional code to select how VDD_CORE is programmed. If
this becomes more complex in the future as new boards are added, or we
end up adding code to detect the SoC SKU and dynamically determine the
allowed frequency and required voltages, we should probably make this a
runtime call into a function provided by the board file and/or relevant
PMIC driver.
Cc: Alban Bedel <alban.bedel@avionic-design.de>
Cc: Marcel Ziswiler <marcel@ziswiler.com>
Cc: Bard Liao <bardliao@realtek.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
The HW-defined procedure for booting Tegra requires that
CLAMP_INPUTS_WHEN_TRISTATED be enabled before programming the pinmux.
Add a function to the pinmux driver to allow boards to do this.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
The HW-defined procedure for booting Tegra requires that some pins be
set up as GPIOs immediately at boot in order to avoid glitches on those
pins, when the pinmux is programmed. Add a feature to the GPIO driver
which executes a GPIO configuration table. Board files will use this to
implement the correct HW initialization procedure.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Define enum PMUX_FUNC_DEFAULT, which indicates that a table entry passed
to pinmux_config_pingrp()/pinmux_config_pingrp_table() shouldn't change
the mux option in HW.
For pins that will be used as GPIOs, the mux option is irrelevant, so we
simply don't want to define any mux option in the pinmux initialization
table.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
The register writes performed by arch/arm/cpu/arm720t/tegra30/cpu.c
enable_cpu_power_rail() set the voltage to 1.0V not 1.4V as the comment
implies. Fix the comment.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
If CONFIG_API is ever to be enabled on Tegra, this define must be set,
since api/api_storage.c uses it.
A couple of annoyting things about CONFIG_SYS_MMC_MAX_DEVICE
1) It isn't documented in README. The same is true for a lot of similar
defines used by api_storage.c.
2) It doesn't represent MAX_DEVICE but rather NUM_DEVICES, since the
valid values are 0..n-1 not 0..n.
However, I this patch does not address those shortcomings.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
The rmobile SoC has usb host controller.
This supports USB controllers listed in the R8A7790, R8A7791 and R8A7740.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Reviewed-by: Marek Vasut <marex@denx.de>
mpc831x has no muram, so muram cannot be used for bootcounter
function.
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
B4420 is a personality of B4860.
It should have same FM1_CLK_SEK and FM1_CLK_SHIFT as B4860
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Adds support for clock sourcing from sysclk(100MHz) for usb
on T104xRDB and T1040QDS. This requires changing reference divisor
and multiplication factor to derive usb clock from sysclk.
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
T1040 and it's variants provide "Single Oscillator Source" Reference Clock Mode.
In this mode, single onboard oscillator(DIFF_SYSCLK) can provide the reference clock
(100MHz) to the following PLLs:
• Platform PLL
• Core PLLs
• USB PLL
• DDR PLL, etc
The cfg_eng_use0 of porsr1 register identifies whether the SYSCLK (single-ended) or
DIFF_SYSCLK (differential) is selected as the clock input to the chip.
get_sys_info has been enhanced to add the diff_sysclk so that the
various drivers can be made aware of ths diff sysclk configuration and
act accordingly.
Other changes:
-single_src to ddr_refclk_sel, as it is use for checking ddr reference clock
-Removed the print of single_src from get_sys_info as this will be
-printed whenever somebody calls get_sys_info which is not appropriate.
-Add print of single_src in checkcpu as it is called only once during initialization
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: Vijay Rai <vijay.rai@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
It is not necessary for bootpg to be present at text + 512KB.
With increase of u-boot size (768KB), bootpg section's address
cannot be fixed.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Before parsing LAW table i.e. init_law, boot loader should disable all
previous LAWs except DDR LAWs which has been created by previous
pre boot loader during DDR initialization.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Current SPL code base has BSS section placed after reset_vector. This means
they have to relocate to use the global variables. This put an implicit
requirement of having SPL size = Memory/2.
To avoid relocation:
- Move bss_section within SPL range
- Modify relocate_code()
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
SPL linker has fix location of bootpg and reset vector with respect to text base.
It is not necessary to have fixed locations.
Avoid such hardcoding.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
LAW_EN is only defined if CONFIG_SYS_CCSRBAR_DEFAULT is not equal to
CONFIG_SYS_CCSRBAR_PHYS. in SPL framework CCSRBAR is not relocated hence
both are same. This cause compilation error.
So LAW_EN define outside of configs
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
qe_init() does not use data copied from NAND. Thise code is not tested or
complied causing compilation error during NAND boot
So, remove QE firmware copy from NAND to ddr.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
When T104x soc wakes up from deep sleep, control is passed to the
primary core that starts executing uboot. After re-initialized some
IP blocks, like DDRC, kernel will take responsibility to continue
to restore environment it leaves before.
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
The supplement configuration unit (SCFG) provides chip-specific
configuration and status registers for the device. It is the chip
defined module for extending the device configuration unit (DCFG)
module. It provides a set of CCSR registers in addition to those
available in the device configuration unit.
The base address for this unit is 0x0F_C000.
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
T1040RDB and T1040QDS boards have an integrated l2 switch.
The switch needs a MAC address for Layer 2 protocols
(MSTP, LLDP, LACP, etc). Setting a MAC address on l2switchaddr will add
a MAC in device-tree, under node l2switch.
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@freescale.com>
Cc: York Sun <yorksun@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Erratum A007212 for DDR is about a runaway condition for DDR PLL
oscilliator. Please refer to erratum document for detail.
For this workaround to work, DDR PLL needs to be disabled in RCW.
However, u-boot needs to know the expected PLL ratio. We put the
ratio in a reserved field RCW[18:23]. U-boot will skip this workaround
if DDR PLL ratio is set, or the reserved field is not set.
Workaround for erratum A007212 applies to selected versions of
B4/T4 SoCs. It is safe to apply the workaround to all versions. It
is helpful for upgrading SoC without changing u-boot. In case DDR
PLL is disabled by RCW (part of the erratum workaround), we need this
u-boot workround to bring up DDR clock.
Signed-off-by: York Sun <yorksun@freescale.com>
Put a delay of 5 millisecond after reset so that ULPI phy
gets enough time to come out of reset. Erratum A007075 applies
to following SOCs and their variants, if any
P1010 rev 1.0
B4860 rev 1.0, 2.0
P4080 rev 2.0, 3.0
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
The value written to L2CSR1 didn't match the value written to the
device tree.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Modify code to adapt to both u-qe and qe.
U_QE is a kind of cutted QE.
the differences between U_QE and QE
1. UCC: U_QE supports 2 UCCs while QE supports up to 8 UCCs.
2. IMMR: have different immr base addr.
3. iopin: U_QE doesn't need to config iopin.
Signed-off-by: Zhao Qiang <B45475@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
CONFIG_SYS_QE_FMAN_FW_ADDR is used to both Fman and QE for microcode address.
Now using CONFIG_SYS_FMAN_FW_ADDR for Fman microcode address,
and CONFIG_SYS_QE_FW_ADDR for QE microcode address.
Signed-off-by: Zhao Qiang <B45475@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Secure Boot Target is added for T1040QDS and T1040RDB
Changes:
For Secure boot, CPC is configured as SRAM and used as house
keeping area which needs to be disabled.
So CONFIG_SYS_CPC_REINIT_F is defined for CONFIG_T1040QDS and
CONFIG_T1040RDB
Signed-off-by: Gaurav Rana <gaurav.rana@freescale.com>
Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Secure Boot Target is added for T2080QDS
Changes:
For Secure boot, CPC is configured as SRAM and used as house
keeping area which needs to be disabled.
So CONFIG_SYS_CPC_REINIT_F is defined for CONFIG_T2080QDS.
Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Secure Boot Target is added for T4240QDS and T4160QDS
Changes:
For Secure boot, CPC is configured as SRAM and used as house
keeping area which needs to be disabled.
So CONFIG_SYS_CPC_REINIT_F is defined for CONFIG_T4240QDS.
Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Changes:
1. L2 cache is being invalidated by Boot ROM code for e6500 core.
So removing the invalidation from start.S
2. Clear the LAW and corresponding configuration for CPC. Boot ROM
code uses it as hosekeeping area.
3. For Secure boot, CPC is configured as SRAM and used as house
keeping area. This configuration is to be disabled once in uboot.
Earlier this disabling of CPC as SRAM was happening in cpu_init_r.
As a result cache invalidation function was getting skipped in
case CPC is configured as SRAM.This was causing random crashes.
Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Add NOR, SPI and SD secure boot targets for BSC9132QDS.
Changes:
- Debug TLB entry is not required for Secure Boot Target.
Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
ISBC creates a LAW 0 entry for non PBL platforms, which is not
disabled before transferring the control to uboot.
The LAW 0 entry has to be disabled.
Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
For KVM we have a special PV machine type called "ppce500". This machine
is inspired by the MPC8544DS board, but implements a lot less features
than that one.
It also provides more PCI slots and is supposed to be enumerated by
device tree only.
This patch adds support for the generic ppce500 machine and tries to
rely solely on device tree for device enumeration.
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
We want to be able to directly execute the ELF binary without going
through the u-boot.bin one.
To know where we have to start executing this ELF binary we have to
tell the linker where our entry point is.
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
The DDR mapping function really is just a generic virtual -> physical
mapping function. Generalize it so it can support any virtual starting
offset and IO maps just the same.
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
There is no need to set IVORs to anything but their default values,
so let's leave them where they are.
Suggested-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Scott Wood <scottwood@freescale.com>
[York Sun: Add back $(obj)start.S section in mpc8572ds/Makefile]
Reviewed-by: York Sun <yorksun@freescale.com>
This is dead hardware and no one is interested in making the
necessary changes for upcoming features like generic board or
driver model.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
This patch allows MIPS boards to make use of generic board, replacing
arch/mips/lib/board.c with common/board_{f,r}.c and struct bd_info with
the asm-generic version.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
The generic board code uses the __init_end symbol to calculate
monitor_flash_len. Define said symbol for MIPS, equivalent to
__image_copy_end which is used for the same purpose in
arch/mips/lib/board.c.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Move the definition of this variable out of arch/mips/lib/board.c in
preparation for allowing use of generic board on MIPS, which will lead
to this file not being compiled.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
interrupt_init is called unconditionally by the generic board code.
Define a stub for it on MIPS like the enable & disable functions.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Commit 54e458de deleted qi_lb60 board support
because of the incompatible license issue.
There is no board with XBurst CPU.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Always keep all sections in u-boot ELF binary. Move all unneeded
sections after _end to avoid allocating space in the final binary.
Also remove .deadcode section which is now obsolete.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
In 6e7b9f4 some of the debug prints for AES code moved into the generic
code, so we remove these additional calls.
Signed-off-by: Tom Rini <trini@ti.com>
Acked-by: Tom Warren <twarren@nvidia.com>
