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    Subject[ 42/42] ARM: 7692/1: iop3xx: move IOP3XX_PERIPHERAL_VIRT_BASE
    Date
    3.8-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Aaro Koskinen <aaro.koskinen@iki.fi>

    commit f5d6a1441a5045824f36ff7c6b6bbae0373472a6 upstream.

    Currently IOP3XX_PERIPHERAL_VIRT_BASE conflicts with PCI_IO_VIRT_BASE:

    address size
    PCI_IO_VIRT_BASE 0xfee00000 0x200000
    IOP3XX_PERIPHERAL_VIRT_BASE 0xfeffe000 0x2000

    Fix by moving IOP3XX_PERIPHERAL_VIRT_BASE below PCI_IO_VIRT_BASE.

    The patch fixes the following kernel panic with 3.9-rc1 on iop3xx boards:

    [ 0.000000] Booting Linux on physical CPU 0x0
    [ 0.000000] Initializing cgroup subsys cpu
    [ 0.000000] Linux version 3.9.0-rc1-iop32x (aaro@blackmetal) (gcc version 4.7.2 (GCC) ) #20 PREEMPT Tue Mar 5 16:44:36 EET 2013
    [ 0.000000] bootconsole [earlycon0] enabled
    [ 0.000000] ------------[ cut here ]------------
    [ 0.000000] kernel BUG at mm/vmalloc.c:1145!
    [ 0.000000] Internal error: Oops - BUG: 0 [#1] PREEMPT ARM
    [ 0.000000] Modules linked in:
    [ 0.000000] CPU: 0 Not tainted (3.9.0-rc1-iop32x #20)
    [ 0.000000] PC is at vm_area_add_early+0x4c/0x88
    [ 0.000000] LR is at add_static_vm_early+0x14/0x68
    [ 0.000000] pc : [<c03e74a8>] lr : [<c03e1c40>] psr: 800000d3
    [ 0.000000] sp : c03ffee4 ip : dfffdf88 fp : c03ffef4
    [ 0.000000] r10: 00000002 r9 : 000000cf r8 : 00000653
    [ 0.000000] r7 : c040eca8 r6 : c03e2408 r5 : dfffdf60 r4 : 00200000
    [ 0.000000] r3 : dfffdfd8 r2 : feffe000 r1 : ff000000 r0 : dfffdf60
    [ 0.000000] Flags: Nzcv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel
    [ 0.000000] Control: 0000397f Table: a0004000 DAC: 00000017
    [ 0.000000] Process swapper (pid: 0, stack limit = 0xc03fe1b8)
    [ 0.000000] Stack: (0xc03ffee4 to 0xc0400000)
    [ 0.000000] fee0: 00200000 c03fff0c c03ffef8 c03e1c40 c03e7468 00200000 fee00000
    [ 0.000000] ff00: c03fff2c c03fff10 c03e23e4 c03e1c38 feffe000 c0408ee4 ff000000 c0408f04
    [ 0.000000] ff20: c03fff3c c03fff30 c03e2434 c03e23b4 c03fff84 c03fff40 c03e2c94 c03e2414
    [ 0.000000] ff40: c03f8878 c03f6410 ffff0000 000bffff 00001000 00000008 c03fff84 c03f6410
    [ 0.000000] ff60: c04227e8 c03fffd4 a0008000 c03f8878 69052e30 c02f96eb c03fffbc c03fff88
    [ 0.000000] ff80: c03e044c c03e268c 00000000 0000397f c0385130 00000001 ffffffff c03f8874
    [ 0.000000] ffa0: dfffffff a0004000 69052e30 a03f61a0 c03ffff4 c03fffc0 c03dd5cc c03e0184
    [ 0.000000] ffc0: 00000000 00000000 00000000 00000000 00000000 c03f8878 0000397d c040601c
    [ 0.000000] ffe0: c03f8874 c0408674 00000000 c03ffff8 a0008040 c03dd558 00000000 00000000
    [ 0.000000] Backtrace:
    [ 0.000000] [<c03e745c>] (vm_area_add_early+0x0/0x88) from [<c03e1c40>] (add_static_vm_early+0x14/0x68)

    Tested-by: Mikael Pettersson <mikpe@it.uu.se>
    Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
    Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    arch/arm/include/asm/hardware/iop3xx.h | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/arch/arm/include/asm/hardware/iop3xx.h
    +++ b/arch/arm/include/asm/hardware/iop3xx.h
    @@ -37,7 +37,7 @@ extern int iop3xx_get_init_atu(void);
    * IOP3XX processor registers
    */
    #define IOP3XX_PERIPHERAL_PHYS_BASE 0xffffe000
    -#define IOP3XX_PERIPHERAL_VIRT_BASE 0xfeffe000
    +#define IOP3XX_PERIPHERAL_VIRT_BASE 0xfedfe000
    #define IOP3XX_PERIPHERAL_SIZE 0x00002000
    #define IOP3XX_PERIPHERAL_UPPER_PA (IOP3XX_PERIPHERAL_PHYS_BASE +\
    IOP3XX_PERIPHERAL_SIZE - 1)



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