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2012-11-06ARM: socfpga: mark secondary_trampoline as cpuinitArnd Bergmann1-1/+1
The socfpga_boot_secondary is correctly marked as __cpuinit but references secondary_trampoline, which was introduced into the init section, causing this build warning: WARNING: vmlinux.o(.cpuinit.text+0xf90): Section mismatch in reference from the function socfpga_boot_secondary() to the variable .init.text:secondary_trampoline The function __cpuinit socfpga_boot_secondary() references a variable __init secondary_trampoline. If secondary_trampoline is only used by socfpga_boot_secondary then annotate secondary_trampoline with a matching annotation. The solution is to mark secondary_trampoline as cpuinit as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-11-05socfpga: map uart into virtual address space so that early_printk() worksPavel Machek1-0/+9
Early printk code needs UART to be mapped early during boot. early_printk() is left there during the start-up; it is useful as our emulators are fairly slow. Signed-off-by: Pavel Machek <pavel@denx.de> Acked-by: Dinh Nguyen <dinguyen@altera.com> [olof: removed redundant newlines] Signed-off-by: Olof Johansson <olof@lixom.net>
2012-10-27ARM: socfpga: fix build break for allyesconfigPavel Machek1-0/+1
Building a multiplatform kernel with combined armv7 and armv6 kernel does not work with the socfpga smp code, which contains v7-only instructions. Since this code never runs on armv6, we can annotate the assmebly with .arch armv7-a, as suggested by Russell King. [arnd: reword commit message] Signed-off-by: Pavel Machek <pavel@denx.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-10-26ARM: socfpga: Enable SMP for socfpgaDinh Nguyen6-1/+220
Enable SMP for the SOCFPGA platform. Signed-off-by: Pavel Machek <pavel@denx.de> Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-09-14ARM: initial multiplatform supportRob Herring4-29/+16
This lets us build a multiplatform kernel for experimental purposes. However, it will not be useful for any real work, because it relies on a number of useful things to be disabled for now: * SMP support must be turned off because of conflicting symbols. Marc Zyngier has proposed a solution by adding a new SOC operations structure to hold indirect function pointers for these, but that work is currently stalled * We turn on SPARSE_IRQ unconditionally, which is not supported on most platforms. Each of them is currently in a different state, but most are being worked on. * A common clock framework is in place since v3.4 but not yet being used. Work on this is on its way. * DEBUG_LL for early debugging is currently disabled. * THUMB2_KERNEL does not work with allyesconfig because the kernel gets too big [Rob Herring]: Rebased to not be dependent on the mass mach header rename. As a result, omap2plus, imx, mxs and ux500 are not converted. Highbank, picoxcell, mvebu, and socfpga are converted. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Acked-by: Jamie Iles <jamie@jamieiles.com> Cc: Dinh Nguyen <dinguyen@altera.com>
2012-09-14ARM: socfpga: move debug macros to include/debugRob Herring1-16/+0
Move socfpga debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Dinh Nguyen <dinguyen@altera.com>
2012-07-19ARM: socfpga: initial support for Altera's SOCFPGA platformDinh Nguyen6-0/+112
Adding core definitions for Altera's SOCFPGA ARM platform. Mininum support for Altera's SOCFPGA Cyclone 5 hardware. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Reviewed-by: Pavel Machek <pavel@denx.de> Reviewed-by: Rob Herring <rob.herring@calxeda.com> Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>