linux-dev/arch/mips/loongson/common/mem.c, branch master

MIPS: Loongson: Naming style cleanup and rework

2015-06-21T19:53:59Z

Currently, code of Loongson-2/3 is under loongson directory and code of Loongson-1 is under loongson1 directory. Besides, there are Kconfig options such as MACH_LOONGSON and MACH_LOONGSON1. This naming style is very ugly and confusing. Since Loongson-2/3 are both 64-bit general- purpose CPU while Loongson-1 is 32-bit SoC, we rename both file names and Kconfig symbols from loongson/loongson1 to loongson64/loongson32. [ralf@linux-mips.org: Resolve a number of simple conflicts.] Signed-off-by: Huacai Chen Cc: Steven J. Hill Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang Cc: Zhangjin Wu Cc: Kelvin Cheung Patchwork: https://patchwork.linux-mips.org/patch/9790/ Signed-off-by: Ralf Baechle

MIPS: Loongson: Add UEFI-like firmware interface (LEFI) support

2014-03-31T16:17:12Z

The new UEFI-like firmware interface (LEFI, i.e. Loongson Unified Firmware Interface) has 3 advantages: 1, Firmware export a physical memory map which is similar to X86's E820 map, so prom_init_memory() will be more elegant that #ifdef clauses can be removed. 2, Firmware export a pci irq routing table, we no longer need pci irq routing fixup in kernel's code. 3, Firmware has a built-in vga bios, and its address is exported, the linux kernel no longer need an embedded blob. With the LEFI interface, Loongson-3A/2G and all their successors can use a unified kernel. All Loongson-based machines support this new interface except 2E/2F series. Signed-off-by: Huacai Chen Signed-off-by: Hongliang Tao Signed-off-by: Hua Yan Tested-by: Alex Smith Reviewed-by: Alex Smith Cc: John Crispin Cc: Steven J. Hill Cc: Aurelien Jarno Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang Cc: Zhangjin Wu Patchwork: https://patchwork.linux-mips.org/patch/6632 Signed-off-by: Ralf Baechle

MIPS: Whitespace cleanup.

2013-02-01T09:00:22Z

Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle

MIPS: Loongson: Fix phys_mem_access_prot() check

2010-04-30T19:52:51Z

The check used to determine if uncached accelerated should be used or not is wrong. The parenthesis are misplaced and making the test fail. Signed-off-by: Arnaud Patard To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1161/ Signed-off-by: Ralf Baechle

MIPS: Loongson: Fix find_vga_mem_init()

2010-04-30T19:52:50Z

This allows to use all display device for instance DISPLAY_OTHER like SM501. Signed-off-by: Arnaud Patard To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1160/ Signed-off-by: Ralf Baechle

MIPS: Loongson: Fixup mem.c indentation

2010-02-27T11:53:11Z

Replace whitespace by tabs. Signed-off-by: Wu Zhangjin Cc: linux-mips@linux-mips.org Cc: yanh@lemote.com Cc: huhb@lemote.com Cc: zhangfx@lemote.com Patchwork: http://patchwork.linux-mips.org/patch/828/ Signed-off-by: Ralf Baechle

MIPS: Add support for uncached accelerated mappings.

2009-12-17T01:57:15Z

Loongson2f support video acceleration. Signed-off-by: Wu Zhangjin Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/624/ Patchwork: http://patchwork.linux-mips.org/patch/625/ Signed-off-by: Ralf Baechle

MIPS: Loongson 2F: Cleanup the #if clauses

2009-12-17T01:57:15Z

This patch adds two new kernel options: CPU_SUPPORTS_CPUFREQ and CPU_SUPPORTS_ADDRWINCFG to describe the new features of Loongons 2F and replaces the several ugly #if clauses by them. These two options will be utilized by the future loongson revisions and related drivers such as the coming Loongson 2F CPUFreq driver. Signed-off-by: Wu Zhangjin Cc: linux-mips@linux-mips.org Cc: Wu Zhangjin Signed-off-by: Ralf Baechle

MIPS: Loongson: Add basic Loongson 2F support

2009-12-17T01:57:10Z

Loongson 2F has built-in DDR2 and PCI-X controller. The PCI-X controller has a programming interface similiar to the the FPGA northbridge used on Loongson 2E. The main differences between Loongson 2E and Loongson 2F include: 1. Loongson 2F has an extra address window configuration module, which is used to map CPU address space to DDR or PCI address space, or map the PCI-DMA address space to DDR or LIO address space. 2. Loongson 2F supports 8 levels of software configurable CPu frequency which can be configured in the LOONGSON_CHIPCFG0 register. The coming cpufreq and standby support are based on this feature. Loongson.h abstracts the modules and corresponding methods are abstracted. Add other Loongson-2F-specific source code including gcc 4.4 support, PCI memory space, PCI IO space, DMA address. Signed-off-by: Wu Zhangjin Cc: linux-mips@linux-mips.org Signed-off-by: Ralf Baechle

MIPS: Loongson: Register reserved memory pages

2009-12-17T01:57:02Z

Register reserved pages for Loongson family machines. Signed-off-by: Wu Zhangjin Cc: Linux-MIPS Cc: yanh@lemote.com, Cc: huhb@lemote.com Cc: Zhang Le Cc: zhangfx@lemote.com, Signed-off-by: Ralf Baechle