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Commit 14e067c1 authored by Jean-Sebastien A. Beaudry's avatar Jean-Sebastien A. Beaudry Committed by Tony Lindgren
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ARM: OMAP2+: AM33xx: Add SoC specific restart hook 



Add restart hook so that DTS based AM33xx builds can restart
the platform.

Tested-by: default avatarNishanth Menon <nm@ti.com>
Signed-off-by: default avatarJean-Sebastien A. Beaudry <jsabeaudry@handyem.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 88b62b91

arch/arm/mach-omap2/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -53,6 +53,7 @@ AFLAGS_sram34xx.o :=-Wa,-march=armv7-a 
# Restart code (OMAP4/5 currently in omap4-common.c)

obj-$(CONFIG_SOC_OMAP2420)		+= omap2-restart.o

obj-$(CONFIG_SOC_OMAP2430)		+= omap2-restart.o

obj-$(CONFIG_SOC_AM33XX)		+= am33xx-restart.o

obj-$(CONFIG_ARCH_OMAP3)		+= omap3-restart.o



# Pin multiplexing

arch/arm/mach-omap2/am33xx-restart.c

0 → 100644
+34 −0
Original line number Diff line number Diff line 
/*

 * am33xx-restart.c - Code common to all AM33xx machines.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#include <linux/kernel.h>



#include "common.h"

#include "prm-regbits-33xx.h"

#include "prm33xx.h"



/**

 * am3xx_restart - trigger a software restart of the SoC

 * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c

 * @cmd: passed from the userspace program rebooting the system (if provided)

 *

 * Resets the SoC.  For @cmd, see the 'reboot' syscall in

 * kernel/sys.c.  No return value.

 */

void am33xx_restart(char mode, const char *cmd)

{

	/* TODO: Handle mode and cmd if necessary */



	am33xx_prm_rmw_reg_bits(AM33XX_GLOBAL_WARM_SW_RST_MASK,

				AM33XX_GLOBAL_WARM_SW_RST_MASK,

				AM33XX_PRM_DEVICE_MOD,

				AM33XX_PRM_RSTCTRL_OFFSET);



	/* OCP barrier */

	(void)am33xx_prm_read_reg(AM33XX_PRM_DEVICE_MOD,

				  AM33XX_PRM_RSTCTRL_OFFSET);

}

arch/arm/mach-omap2/board-generic.c

+1 −0
Original line number Diff line number Diff line
@@ -141,6 +141,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)") 
	.init_machine	= omap_generic_init,

	.timer		= &omap3_am33xx_timer,

	.dt_compat	= am33xx_boards_compat,

	.restart	= am33xx_restart,

MACHINE_END

#endif

arch/arm/mach-omap2/common.h

+8 −0
Original line number Diff line number Diff line
@@ -119,6 +119,14 @@ static inline void omap2xxx_restart(char mode, const char *cmd) 
}

#endif



#ifdef CONFIG_SOC_AM33XX

void am33xx_restart(char mode, const char *cmd);

#else

static inline void am33xx_restart(char mode, const char *cmd)

{

}

#endif



#ifdef CONFIG_ARCH_OMAP3

void omap3xxx_restart(char mode, const char *cmd);

#else