/* Resets clock rates and reboots the system. Only called from system.h */
void omap_prcm_arch_reset(char mode)
{
s16 prcm_offs;
omap2_clk_prepare_for_reboot();
if (cpu_is_omap24xx()) {
prcm_offs = WKUP_MOD;
prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs, RM_RSTCTRL);
} else if (cpu_is_omap34xx()) {
u32 l;
prcm_offs = OMAP3430_GR_MOD;
l = ('B' << 24) | ('M' << 16) | mode;
/* Reserve the first word in scratchpad for communicating
* with the boot ROM. A pointer to a data structure
* describing the boot process can be stored there,
* cf. OMAP34xx TRM, Initialization / Software Booting
* Configuration. */
omap_writel(l, OMAP343X_SCRATCHPAD + 4);
omap3_configure_core_dpll_warmreset();
} else
WARN_ON(1);
}
// This code is yanked from arch/arm/mach-omap2/prcm.c
void machine_emergency_restart(void)
{
s16 prcm_offs;
u32 l;
// delay here to allow eMMC to finish any internal housekeeping before reset
// even if mdelay fails to work correctly, 8 second button press should work
// this used to be an msleep but scheduler is gone here and calling msleep
// will cause a panic
mdelay(1600);
prcm_offs = OMAP3430_GR_MOD;
l = ('B' << 24) | ('M' << 16) | 'h';
/* Reserve the first word in scratchpad for communicating
* with the boot ROM. A pointer to a data structure
* describing the boot process can be stored there,
* cf. OMAP34xx TRM, Initialization / Software Booting
* Configuration. */
omap_writel(l, OMAP343X_SCRATCHPAD + 4);
omap3_configure_core_dpll_warmreset();
}
/* Resets clock rates and reboots the system. Only called from system.h */
void omap_prcm_arch_reset(char mode, const char *cmd)
{
s16 prcm_offs;
omap2_clk_prepare_for_reboot();
if (cpu_is_omap24xx()) {
prcm_offs = WKUP_MOD;
prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs, RM_RSTCTRL);
} else if (cpu_is_omap34xx()) {
u32 l;
/* Copy cmd into scratchpad memmory if any */
if(cmd != 0)
{
u16 counter = 0;
while((counter < (OMAP343X_SCRATCHPAD_BCB_SIZE-1)) && (cmd[counter]!='\0')) {
omap_writeb(cmd[counter], OMAP343X_SCRATCHPAD_BCB + counter);
counter++;
}
omap_writeb('\0', OMAP343X_SCRATCHPAD_BCB + counter);
}
prcm_offs = OMAP3430_GR_MOD;
l = ('B' << 24) | ('M' << 16) | mode;
/* Reserve the first word in scratchpad for communicating
* with the boot ROM. A pointer to a data structure
* describing the boot process can be stored there,
* cf. OMAP34xx TRM, Initialization / Software Booting
* Configuration. */
omap_writel(l, OMAP343X_SCRATCHPAD + 4);
omap3_configure_core_dpll_warmreset();
} else
WARN_ON(1);
}
