diff options
| author | Anson Huang <Anson.Huang@freescale.com> | 2015-11-06 22:31:25 +0800 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:24:20 +0800 |
| commit | 61d27d537d46259cbb11946af217c9b53e7d0915 (patch) | |
| tree | 1077afc1a5fa4971dbffd355a1c151b8e683371f /arch/arm/boot/dts/imx7d-12x12-lpddr3-arm2-m4.dts | |
| parent | dfcf0caa49ef53bf73267296e5ee764175249770 (diff) | |
MLK-11830 ARM: dts: add tcm address info for imx7d 12x12 lpddr3 board
When M4 is enabled, Linux has to do save/restore for M4 TCM during
suspend/resume, dtb should pass the TCM address for kernel, without
this TCM info, kernel will boot up fail:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at arch/arm/mach-imx/pm-imx7.c:1030 imx7d_pm_init+0x58/0)
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.52-02791-g1babdb1-dirty #2093
[<80014b40>] (unwind_backtrace) from [<80011798>] (show_stack+0x10/0x14)
[<80011798>] (show_stack) from [<807199ec>] (dump_stack+0x7c/0xbc)
[<807199ec>] (dump_stack) from [<80032d78>] (warn_slowpath_common+0x6c/0x88)
[<80032d78>] (warn_slowpath_common) from [<80032e30>] (warn_slowpath_null+0x1c/)
[<80032e30>] (warn_slowpath_null) from [<80a09760>] (imx7d_pm_init+0x58/0x67c)
[<80a09760>] (imx7d_pm_init) from [<80a08d3c>] (imx7d_init_machine+0x3c/0xe4)
[<80a08d3c>] (imx7d_init_machine) from [<809e52e4>] (customize_machine+0x20/0x4)
[<809e52e4>] (customize_machine) from [<800089bc>] (do_one_initcall+0xf8/0x144)
[<800089bc>] (do_one_initcall) from [<809e2c4c>] (kernel_init_freeable+0x138/0x)
[<809e2c4c>] (kernel_init_freeable) from [<807159b8>] (kernel_init+0x8/0xf0)
[<807159b8>] (kernel_init) from [<8000e580>] (ret_from_fork+0x14/0x34)
---[ end trace fdb0885876d7ac0b ]---
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = 80004000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 3.14.52-02791-g1babdb1-dir3
task: a8084000 ti: a8090000 task.ti: a8090000
PC is at memcpy+0x48/0x330
LR is at imx7d_pm_init+0xd0/0x67c
pc : [<8028e768>] lr : [<80a097d8>] psr: 20000013
sp : a8091e8c ip : 00000000 fp : 00000000
r10: a8090030 r9 : 0000010b r8 : 809e52c4
r7 : 80ab9380 r6 : 80ab9380 r5 : 80abb5a4 r4 : 80a411cc
r3 : 00080000 r2 : 00007f80 r1 : 00000000 r0 : a8140000
Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 10c53c7d Table: 8000406a DAC: 00000015
Process swapper/0 (pid: 1, stack limit = 0xa8090238)
Signed-off-by: Anson Huang <Anson.Huang@freescale.com>
(cherry picked from commit c3dc7c16660200f3de8cbbdd1f215ae6a779a039)
Diffstat (limited to 'arch/arm/boot/dts/imx7d-12x12-lpddr3-arm2-m4.dts')
| -rw-r--r-- | arch/arm/boot/dts/imx7d-12x12-lpddr3-arm2-m4.dts | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx7d-12x12-lpddr3-arm2-m4.dts b/arch/arm/boot/dts/imx7d-12x12-lpddr3-arm2-m4.dts index ae4a080e6cda..65821e667375 100644 --- a/arch/arm/boot/dts/imx7d-12x12-lpddr3-arm2-m4.dts +++ b/arch/arm/boot/dts/imx7d-12x12-lpddr3-arm2-m4.dts @@ -11,6 +11,11 @@ gpio-keys { status = "disabled"; }; + + m4_tcm: tcml@007f8000 { + compatible = "fsl, m4_tcml"; + reg = <0x007f8000 0x8000>; + }; }; &adc1 { |