u-boot.git/arch/arm/lib, branch v2014.10

arm: cache: Add support for write-allocate D-Cache

2014-10-06T15:40:21Z

Add configuration for the write-allocate mode of L1 D-Cache on ARM. This is needed for D-Cache operation on Cortex-A9 on the SoCFPGA . Signed-off-by: Marek Vasut Cc: Chin Liang See Cc: Dinh Nguyen Cc: Albert Aribaud Cc: Tom Rini Cc: Wolfgang Denk Cc: Pavel Machek Acked-by: Pavel Machek

armv8/fsl-lsch3: Release secondary cores from boot hold off with Boot Page

2014-09-25T15:36:19Z

Secondary cores need to be released from holdoff by boot release registers. With GPP bootrom, they can boot from main memory directly. Individual spin table is used for each core. Spin table and the boot page is reserved in device tree so OS won't overwrite. Signed-off-by: York Sun Signed-off-by: Arnab Basu

Revert "ARM: SPL: do not set gd again"

2014-09-16T16:24:00Z

At the high level, the problem is that we set gd multiple times (and still do, even after the commit we're reverting). We set important parts of gd to the copy which is not above stack but rather in the data section. For the release, we're going to revert this change and for the next release we shall correct things to only, really, set gd once to an appropriate location and ensure that comments about it are correct too. This reverts commit f0c3a6c4ad09210d5d4aeafe87685ee75e5683d6. Acked-by: Albert Aribaud Signed-off-by: Tom Rini

arm: Fix _start for CONFIG_SYS_DV_NOR_BOOT_CFG

2014-09-11T16:04:39Z

The boards using CONFIG_SYS_DV_NOR_BOOT_CFG (i.e. calimain, da850evm_direct_nor and enbw_cmc) had the _start symbol defined after the CONFIG_SYS_DV_NOR_BOOT_CFG word rather than before it in arch/arm/lib/vectors.S. Because of that, if by lack of luck 'gd->mon_len = (ulong)&__bss_end - (ulong)_start' (see setup_mon_len()) was a multiple of 4 kiB (see reserve_uboot()), then the last BSS word overlapped the first word of the following reserved RAM area (or went beyond the top of RAM without such an area) after relocation because __image_copy_start did not match _start (see relocate_code()). This was broken by commit 41623c9 'arm: move exception handling out of start.S files', which defined _start twice (before and after the CONFIG_SYS_DV_NOR_BOOT_CFG word), then by commit 0a26e1d 'arm: fix a double-definition error of _start symbol', which kept the definition of the _start symbol after the CONFIG_SYS_DV_NOR_BOOT_CFG word. This new commit fixes this issue by restoring the original behavior, i.e. by defining the _start symbol before the CONFIG_SYS_DV_NOR_BOOT_CFG word. Signed-off-by: Benoît Thébaudeau Cc: Albert Aribaud Cc: Manfred Rudigier Cc: Christian Riesch Cc: Sudhakar Rajashekhara Cc: Heiko Schocher

arm: Make reset position-independent

2014-09-11T16:04:34Z

Some boards, like mx31pdk and tx25, require the beginning of the SPL code to be position-independent. For these two boards, this is because they use the i.MX external NAND boot, which starts by executing the first NAND Flash page from the NFC page buffer. The SPL then needs to copy itself to its actual link address in order to free the NFC page buffer and use it to load the non-SPL image from Flash before running it. This means that the SPL runtime address differs from its link address between the reset and the initial copy performed by board_init_f(), so this part of the SPL binary must be position-independent. This requirement was broken by commit 41623c9 'arm: move exception handling out of start.S files', which used an absolute address to branch to the reset routine. This new commit restores the original behavior, which just performed a relative branch. This fixes the boot of mx31pdk and tx25. Signed-off-by: Benoît Thébaudeau Reported-by: Helmut Raiger Cc: Albert Aribaud Cc: Magnus Lilja Cc: John Rigby Tested-by: Magnus Lilja

eabi_compat: add __aeabi_memcpy __aeabi_memset

2014-09-09T11:51:11Z

cc: Albert ARIBAUD Signed-off-by: Jeroen Hofstee

ARM: SPL: do not set gd again

2014-09-09T11:50:57Z

Just before calling board_init_f, crt0.S has already reserved space for the initial gd on the stack. There should be no need to allocate it again. cc: Albert ARIBAUD Signed-off-by: Jeroen Hofstee

arm:reset: call the reset_misc() before the cpu reset

2014-09-05T04:58:49Z

On an Odroid U3 board, the SOC is unable to reset the eMMC card in the DWMMC mode by the cpu software reset. Manual reset of the card by switching proper gpio pin - fixes this issue. Such solution needs to add a call to pre reset function. This is done by the reset_misc() function, which is called before reset_cpu(). The function reset_misc() is a weak function. Signed-off-by: Przemyslaw Marczak Cc: Minkyu Kang Cc: Jean-Christophe PLAGNIOL-VILLARD Cc: Albert ARIBAUD Cc: Tom Rini Changes v4: - arch/arm/reset: fix weak function attribute to proper style Signed-off-by: Minkyu Kang

arm64: Correct passing of Linux kernel args

2014-08-30T11:46:40Z

The Documentation/arm64/booting.txt document says that pass in x1/x2/x3 as 0 as they are reserved for future use. Signed-off-by: Tom Rini

ARM: Fix overflow in MMU setup

2014-08-30T11:46:39Z

The patch fixes a corner case where adding size to DRAM start resulted in a value (1 << 32), which in turn overflew the u32 computation, which resulted in 0 and it therefore prevented correct setup of the MMU tables. The addition of DRAM bank start and it's size can end up right at the end of the address space in the special case of a machine with enough memory. To prevent this overflow, shift the start and size separately and add them only after they were shifted. Hopefully, we only have systems in tree which have DRAM size aligned to 1MiB boundary. If not, this patch would break such systems. On the other hand, such system would be broken by design anyway. Signed-off-by: Marek Vasut Cc: Albert ARIBAUD