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ARM: OMAP3: PRM: move modem reset to PRM driver

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This is a more proper isolation of the code. Done in preparation of making
PRM an individual driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
This commit is contained in:
Tero Kristo 2014-03-04 15:48:33 +02:00
parent 9de367fae0
commit 55c6c3ad90
3 changed files with 17 additions and 4 deletions
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5
arch/arm/mach-omap2/pm34xx.c
View file

@ -371,10 +371,7 @@ static void __init omap3_d2d_idle(void)
omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_IDLEACK);
/* reset modem */
omap2_prm_write_mod_reg(OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RSTPWRON_MASK |
OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RST_MASK,
CORE_MOD, OMAP2_RM_RSTCTRL);
omap2_prm_write_mod_reg(0, CORE_MOD, OMAP2_RM_RSTCTRL);
omap3_prm_reset_modem();
}
static void __init prcm_setup_regs(void)

15
arch/arm/mach-omap2/prm3xxx.c
View file

@ -259,6 +259,21 @@ int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits)
return c;
}
/**
* omap3_prm_reset_modem - toggle reset signal for modem
*
* Toggles the reset signal to modem IP block. Required to allow
* OMAP3430 without stacked modem to idle properly.
*/
void __init omap3_prm_reset_modem(void)
{
omap2_prm_write_mod_reg(
OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RSTPWRON_MASK |
OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RST_MASK,
CORE_MOD, OMAP2_RM_RSTCTRL);
omap2_prm_write_mod_reg(0, CORE_MOD, OMAP2_RM_RSTCTRL);
}
/**
* omap3xxx_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain
*

1
arch/arm/mach-omap2/prm3xxx.h
View file

@ -164,6 +164,7 @@ extern int __init omap3xxx_prm_init(void);
extern u32 omap3xxx_prm_get_reset_sources(void);
int omap3xxx_prm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits);
void omap3xxx_prm_iva_idle(void);
void omap3_prm_reset_modem(void);
#endif /* __ASSEMBLER */