kernel.git/arch/arm/kernel/head.S, branch linux-2.6.21.y

[ARM] 4226/1: initial .data and .bss mappings of XIP kernel should be TEXT_OFFSET

2007-02-25T16:41:39Z

aware Since TEXT_OFFSET is meant to determine RAM location for kernel use, itshould affect .data and .bss initial mapping in the XIP case. Otherwise a XIP kernel would crash if TEXT_OFFSET gets somewhat larger than 2MB. Corresponding code is also moved up a bit to be near the similar .text mapping code making the whole a bit more straight forward to understand. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King

[ARM] 4224/2: allow XIP kernel to boot again

2007-02-25T16:41:38Z

Since commit 2552fc27ff79b10b9678d92bcaef21df38bb7bb6 XIP kernels failed to boot because (_end - PAGE_OFFSET - 1) is much smaller than the size of the kernel text and data in the XIP case, causing the kernel not to be entirely mapped. Even in the non-XIP case, the use of (_end - PAGE_OFFSET - 1) is wrong because it produces a too large value if TEXT_OFFSET is larger than 1MB. Finally the original code was performing one loop too many. Let's break the loop when the section pointer has passed the last byte of the kernel instead. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King

[ARM] 4102/1: Allow for PHYS_OFFSET on any valid 2MiB address

2007-01-24T11:59:57Z

This patchs allows the offset to the first page of physical memory to be on any 2MB boundary whereas the previous code could only handle psysical offset to any 16MB boundary (0xNN000000) or any 1MB boundary below 0x01000000 (e.g. 0x00N00000). The problem is a consequence of the orr one-byte syntax, so we fix this and we can place the first bank of memory at 0x28e00000. I have also included an explicit check that disallow compilation when PHYS_OFFSET is not on a 2MiB boundary. head.S would be the proper place to have this at since this is the first file that attempts to use PHYS_OFFSET during compile. Signed-off-by: Linus Walleij Signed-off-by: Russell King

[ARM] Clean up KERNEL_RAM_ADDR

2006-12-11T22:29:16Z

Clean up the KERNEL_RAM_ADDR stuff in arch/arm/kernel/head.S to make it clearer what's referring to what. In doing so, remove the usage of __virt_to_phys(), which is not guaranteed to be something that the assembler can parse. Signed-off-by: Russell King

[ARM] Include asm/elf.h instead of asm/procinfo.h

2006-11-30T12:24:46Z

These files want to provide/access ELF hwcap information, so should be including asm/elf.h rather than asm/procinfo.h Signed-off-by: Russell King

[ARM] 3809/3: get rid of 4 megabyte kernel image size limit

2006-09-30T10:30:44Z

We currently have a hardcoded 4 megabyte uncompressed kernel image size limit, which is easily exceeded by, for example, enabling some of the various kernel debugging options. When setting up the initial page tables (which is where this 4M limit is hardcoded), it's actually relatively easy to find out the true size of the uncompressed kernel image and create enough page table entries for things to fit, so this patch makes it so. In the decompressor, we also need to know the size of the uncompressed kernel image, to figure out whether there is any chance that uncompressing the kernel might overwrite the compressed kernel image stored elsewhere in memory. We don't have that info at this boot stage, though, so we approximate the size of the uncompressed kernel by taking the compressed kernel image size and allowing for a maximum 4x expansion. Signed-off-by: Lennert Buytenhek Signed-off-by: Russell King

[ARM] 3757/1: Use PROCINFO_INITFUNC in head.S

2006-08-18T14:34:46Z

Patch from Catalin Marinas This is instead of a magic number. Signed-off-by: Catalin Marinas Signed-off-by: Russell King

[ARM] Fix SMP booting

2006-07-26T17:57:40Z

Processor support files now use r6 in their CPU setup code, so we can't rely on r6 being preserved. Use r7 instead. Signed-off-by: Russell King

Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm

2006-07-02T22:04:12Z

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (44 commits) [ARM] 3541/2: workaround for PXA27x erratum E7 [ARM] nommu: provide a way for correct control register value selection [ARM] 3705/1: add supersection support to ioremap() [ARM] 3707/1: iwmmxt: use the generic thread notifier infrastructure [ARM] 3706/2: ep93xx: add cirrus logic edb9315a support [ARM] 3704/1: format IOP Kconfig with tabs, create more consistency [ARM] 3703/1: Add help description for ARCH_EP80219 [ARM] 3678/1: MMC: Make OMAP MMC work [ARM] 3677/1: OMAP: Update H2 defconfig [ARM] 3676/1: ARM: OMAP: Fix dmtimers and timer32k to compile on OMAP1 [ARM] Add section support to ioremap [ARM] Fix sa11x0 SDRAM selection [ARM] Set bit 4 on section mappings correctly depending on CPU [ARM] 3666/1: TRIZEPS4 [1/5] core ARM: OMAP: Multiplexing for 24xx GPMC wait pin monitoring ARM: OMAP: Fix SRAM to use MT_MEMORY instead of MT_DEVICE ARM: OMAP: Update dmtimers ARM: OMAP: Make clock variables static ARM: OMAP: Fix GPMC compilation when DEBUG is defined ARM: OMAP: Mux updates for external DMA and GPIO ...

Remove obsolete #include

2006-06-30T17:25:36Z

Signed-off-by: Jörn Engel Signed-off-by: Adrian Bunk