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Without this information probing of imx-rpmsg fails as it is not able
to setup the vring due to missing allocated physical memory.
Signed-off-by: Octavian Purdila <octavian.purdila@nxp.com>
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enable rpmsg on imx6sx platforms
- imx6sx sdb board
- imx6sx sabreauto board
Signed-off-by: Richard Zhu <Richard.Zhu@freescale.com>
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FreeRTOS/M4 has DDR use case, M4 can only execute on DDR
space lower than 0xa0000000, Linux kernel will reserve 1M
(0x9ff00000 - 0x9fffffff) for it, below are the DDR usage:
0x80000000 - 0x9fefffff: Linux kernel;
0x9ff00000 - 0x9fffffff: FreeRTOS;
0xa0000000 - 0xbfefffff: Linux kernel;
0xbff00000 - 0xbfffffff: RPMSG shared memory;
0xc0000000 - 0xffffffff: Linux kernel if boards has 2GB DDR.
Also, remove 'reg' property which is unused.
Signed-off-by: Anson Huang <Anson.Huang@freescale.com>
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FreeRTOS has use case of running on OCRAM, reserve the
bottom half of OCRAM spase(0x910000 - 0x91efff) for M4,
the last 4K is for shared memory power management.
Signed-off-by: Anson Huang <Anson.Huang@freescale.com>
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1. add i.MX6SX SabreAuto board M4 dts support;
2. add shared memory node support for AMP clk/power management;
3. add qspi restore node for suspend/resume with Mega/Fast off
when M4 is enabled and running on QSPI flash.
Signed-off-by: Anson Huang <b20788@freescale.com>
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