- 23 Jan, 2014 21 commits
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Qais Yousef authored
we want the device tree to be unflattened into non init memory so it can be accessed later by, for example, a probing function of a driver module. Signed-off-by:
Qais Yousef <qais.yousef@imgtec.com> Reviewed-by:
Paul Burton <paul.burton@imgtec.com> Reviewed-by:
James Hogan <james.hogan@imgtec.com> Signed-off-by:
John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6210/
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Qais Yousef authored
Signed-off-by:
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Qais Yousef authored
The defaults are not always applicable and it makes it hard for the bootloader to override them. By removing it we give the bootloader full control over what command line parameters to pass. Without this change we will need to modify the built-in dtb to add bootloader cmd line parameters or do some work to append them after we unflatten the device tree. Sead3 is a development board, that's why we want to be able to change boot parameters on the fly from the bootloader. Signed-off-by:
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Qais Yousef authored
if the user sets memsize parameter in commandline or bootloader environment, we use it to modify the built-in dtb memory size Signed-off-by:
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Florian Fainelli authored
Update the early_printk code to include linux/serial_bcm63xx.h which provides the definitions for the UART block registers. While at it, remove the inclusion of serial_bcm63xx.h which was just there to allow smooth transition. Signed-off-by:
Florian Fainelli <florian@openwrt.org> Signed-off-by:
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Florian Fainelli authored
Now that the UART block defines have been moved to a separate file, include that one and do not longer rely on the MIPS-specific bcm63xx_regs.h header file. Signed-off-by:
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Florian Fainelli authored
Move the BCM63XX UART driver definitions to include/linux/serial_bcm63xx.h such that we do not rely on the MIPS BCM63XX code to provide these for us. Signed-off-by:
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Florian Fainelli authored
bcm_{readl,writel} macros expand to __raw_{readl,writel}, use these directly such that we do not rely on the platform to provide these for us. As a result, we no longer use bcm63xx_io.h, so remove that inclusion too. Signed-off-by: -
Florian Fainelli authored
bcm63xx_irqs.h is included but we are not using anything from it, drop that include. Signed-off-by:
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Steven J. Hill authored
Remove usage of -mno-jals compiler flag when building a pure microMIPS kernel. The -mno-jals flag only ever existed within Mentor toolchains. Dropping this flag allows all FSF toolchains to work. Signed-off-by:
Steven J. Hill <Steven.Hill@imgtec.com> Reviewed-by:
Markos Chandras <markos.chandras@imgtec.com> Signed-off-by:
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David Daney authored
This will be needed by the next patch to use said nodes for probing via the device tree. Signed-off-by:
David Daney <david.daney@cavium.com> Tested-by:
Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by:
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Paul Burton authored
This patch switches Malta from using the MIPS implementation of early printk with Malta's prom_putchar to using the generic 8250_early implementation. This offers a couple of advantages: - We duplicate less generic code. - The UART can be initialised rather than being reliant upon inheriting a valid setup from the bootloader. The Malta console_config function is extended to initialise the early console if no earlycon= kernel parameter is provided, inheriting the modetty0 bootloader environment if present and falling back to a default 38400n8r setup if not. This matches the behaviour used for the regular console= parameter. Signed-off-by: -
Paul Burton authored
This patch causes the kernel to mux the SERIRQ interrupt to the SERIRQ pin of the PIIX4 and to enable that interrupt. The kernel depends upon the interrupt when using the SuperIO UARTs (ttyS0 & ttyS1) but previously would not configure it, instead relying upon the bootloader having done so. If that is not the case then the typical result is that the system appears to hang once it reaches userland as no output is displayed on the UART. Signed-off-by:
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Paul Burton authored
The RTC is used on Malta to estimate the clock frequency of the CPU & optionally the GIC. However the kernel previously did not initialise the RTC, instead relying upon the bootloader having done so. In order to minimise dependencies which the kernel has upon the bootloader this patch causes the kernel to initialise the RTC itself prior to making use of it. Signed-off-by:
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Paul Burton authored
This variable seems to have been copied from Malta when SEAD3 support was introduced, but is likewise unused. Remove it. Signed-off-by:
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Paul Burton authored
This variable was introduced by commit 96348c8f (of Ralf's historic Linux/MIPS repository) "Remaining fixes for MIPS's eval boards." but I don't see any use of it either then or now. Remove it. Signed-off-by:
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Aaro Koskinen authored
Export symbols needed by the octeon-ethernet driver. The patch fixes a build failure with CONFIG_OCTEON_ETHERNET=m. Signed-off-by:
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Guenter Roeck authored
The following build error is seen if CONFIG_32BIT is undefined, CONFIG_64BIT is defined, and CONFIG_MIPS32_O32 is undefined. asm/syscall.h: In function 'mips_get_syscall_arg': arch/mips/include/asm/syscall.h:32:16: error: unused variable 'usp' [-Werror=unused-variable] cc1: all warnings being treated as errors Fixes: c0ff3c53 ('MIPS: Enable HAVE_ARCH_TRACEHOOK') Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Acked-by:
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Aaro Koskinen authored
The boot hangs early on EBH5600 board when octeon_fdt_pip_iface() is trying enumerate a non-existant interface. The actual hang happens in cvmx_helper_interface_get_mode(): mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface)); when interface == 4. We can avoid this situation by first checking that the interface exists in the DTB. Signed-off-by:
Aaro Koskinen <aaro.koskinen@nsn.com> Acked-by:
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Aaro Koskinen authored
When booting with in-kernel DTBs, the pruning code will enumerate interfaces 0-4. However, there is memory reserved only for 4 so some other data will get overwritten by cvmx_helper_interface_enumerate(). Signed-off-by:
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Antony Pavlov authored
Signed-off-by:
Antony Pavlov <antonynpavlov@gmail.com> Acked-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
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- 22 Jan, 2014 19 commits
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Felix Fietkau authored
Only one MIPS development board actually supports enabling/disabling DMA coherency at runtime, so it's not a good idea to push the overhead of checking that configuration setting onto every other supported target as well. Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
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Steven J. Hill authored
Clean-up code according to the 'checkpatch.pl' script. Signed-off-by:
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Deng-Cheng Zhu authored
Malta with multi-core CM platforms can now use APRP functionality. Signed-off-by:
Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> Signed-off-by:
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Deng-Cheng Zhu authored
This patch adds RTLX API support for platforms having a CMP. Signed-off-by:
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Deng-Cheng Zhu authored
Split the RTLX functionality in preparation for adding support for CMP platforms. Common functions remain in the original file and a new file contains code specific to platforms that do not have a CMP. Signed-off-by:
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Deng-Cheng Zhu authored
This patch adds VPE loader support for platforms having a CMP. Signed-off-by:
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Deng-Cheng Zhu authored
Split the VPE functionality in preparation for adding support for CMP platforms. Common functions remain in the original file and a new file contains code specific to platforms that do not have a CMP present. Signed-off-by:
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Steven J. Hill authored
This patch accomplishes the following: * Clean up wording on all MIPS MT configuration menu items. * Simplify and neaten up options selected by MIPS_MT_SMP. * Make MIPS_MT_SMTC support as deprecated. * Make MIPS_CMP support to depend on MIPS_MT_SMP also. * Remove redundant options selected by MIPS_CMP. Signed-off-by:
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Leonid Yegoshin authored
Signed-off-by:
Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by:
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Leonid Yegoshin authored
The interAptiv is a power-efficient multi-core microprocessor for use in system-on-chip (SoC) applications. The interAptiv combines a multi-threading pipeline with a coherence manager to deliver improved computational throughput and power efficiency. The interAptiv can contain one to four MIPS32R3 interAptiv cores, system level coherence manager with L2 cache, optional coherent I/O port, and optional floating point unit. Signed-off-by:
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Leonid Yegoshin authored
Add processor identifiers for UP and MT interAptiv processors. Signed-off-by:
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Steven J. Hill authored
Add a new mips/segments debugfs file to print the 6 segmentation control registers for supported cores. A sample from a proAptiv core is given below: Signed-off-by:
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Leonid Yegoshin authored
The Fixed Page Size TLB (FTLB) is a set-associative dual entry TLB. Its purpose is to reduce the number of TLB misses by increasing the effective TLB size and keep the implementation complexity to minimum levels. A supported core can have both VTLB and FTLB. Reviewed-by:
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Leonid Yegoshin authored
The TLBINVF instruction can be used to flush the entire VTLB. This eliminates the need for the TLBWI loop and improves performance. Reviewed-by:
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Leonid Yegoshin authored
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Leonid Yegoshin authored
Signed-off-by:
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Leonid Yegoshin authored
The proAptiv Multiprocessing System is a power efficient multi-core microprocessor for use in system-on-chip (SoC) applications. The proAptiv Multiprocessing System combines a deep pipeline with multi-issue out of order execution for improved computational throughput. The proAptiv Multiprocessing System can contain one to six MIPS32r3 proAptiv cores, system level coherence manager with L2 cache, optional coherent I/O port, and optional floating point unit. Signed-off-by:
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Leonid Yegoshin authored
Add processor identifiers for single core and multi-core proAptiv processors. Signed-off-by:
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Leonid Yegoshin authored
For MIPS32R3 supported cores, the EHINV bit needs to be set when invalidating the TLB. This is necessary because the legacy software method of representing an invalid TLB entry using an unmapped address value is not guaranteed to work. Signed-off-by:
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