diff options
Diffstat (limited to 'arch/arm/mach-omap2/io.c')
| -rw-r--r-- | arch/arm/mach-omap2/io.c | 143 |
1 files changed, 121 insertions, 22 deletions
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 40562ddd3ee4..e66687b0b9de 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -39,13 +39,11 @@ #include "io.h" #include <plat/omap-pm.h> -#include <plat/powerdomain.h> -#include "powerdomains.h" - -#include <plat/clockdomain.h> -#include "clockdomains.h" +#include "powerdomain.h" +#include "clockdomain.h" #include <plat/omap_hwmod.h> +#include <plat/multi.h> /* * The machine specific code may provide the extra mapping besides the @@ -297,7 +295,7 @@ static int __init _omap2_init_reprogram_sdrc(void) return 0; dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck"); - if (!dpll3_m2_ck) + if (IS_ERR(dpll3_m2_ck)) return -EINVAL; rate = clk_get_rate(dpll3_m2_ck); @@ -311,24 +309,81 @@ static int __init _omap2_init_reprogram_sdrc(void) return v; } -void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0, - struct omap_sdrc_params *sdrc_cs1) +static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data) +{ + return omap_hwmod_set_postsetup_state(oh, *(u8 *)data); +} + +/* + * Initialize asm_irq_base for entry-macro.S + */ +static inline void omap_irq_base_init(void) +{ + extern void __iomem *omap_irq_base; + +#ifdef MULTI_OMAP2 + if (cpu_is_omap24xx()) + omap_irq_base = OMAP2_L4_IO_ADDRESS(OMAP24XX_IC_BASE); + else if (cpu_is_omap34xx()) + omap_irq_base = OMAP2_L4_IO_ADDRESS(OMAP34XX_IC_BASE); + else if (cpu_is_omap44xx()) + omap_irq_base = OMAP2_L4_IO_ADDRESS(OMAP44XX_GIC_CPU_BASE); + else + pr_err("Could not initialize omap_irq_base\n"); +#endif +} + +void __init omap2_init_common_infrastructure(void) { - u8 skip_setup_idle = 0; + u8 postsetup_state; - pwrdm_init(powerdomains_omap); - clkdm_init(clockdomains_omap, clkdm_autodeps); - if (cpu_is_omap242x()) + if (cpu_is_omap242x()) { + omap2xxx_powerdomains_init(); + omap2_clockdomains_init(); omap2420_hwmod_init(); - else if (cpu_is_omap243x()) + } else if (cpu_is_omap243x()) { + omap2xxx_powerdomains_init(); + omap2_clockdomains_init(); omap2430_hwmod_init(); - else if (cpu_is_omap34xx()) + } else if (cpu_is_omap34xx()) { + omap3xxx_powerdomains_init(); + omap2_clockdomains_init(); omap3xxx_hwmod_init(); - else if (cpu_is_omap44xx()) + } else if (cpu_is_omap44xx()) { + omap44xx_powerdomains_init(); + omap44xx_clockdomains_init(); omap44xx_hwmod_init(); + } else { + pr_err("Could not init hwmod data - unknown SoC\n"); + } + + /* Set the default postsetup state for all hwmods */ +#ifdef CONFIG_PM_RUNTIME + postsetup_state = _HWMOD_STATE_IDLE; +#else + postsetup_state = _HWMOD_STATE_ENABLED; +#endif + omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state); + + /* + * Set the default postsetup state for unusual modules (like + * MPU WDT). + * + * The postsetup_state is not actually used until + * omap_hwmod_late_init(), so boards that desire full watchdog + * coverage of kernel initialization can reprogram the + * postsetup_state between the calls to + * omap2_init_common_infra() and omap2_init_common_devices(). + * + * XXX ideally we could detect whether the MPU WDT was currently + * enabled here and make this conditional + */ + postsetup_state = _HWMOD_STATE_DISABLED; + omap_hwmod_for_each_by_class("wd_timer", + _set_hwmod_postsetup_state, + &postsetup_state); - /* The OPP tables have to be registered before a clk init */ - omap_pm_if_early_init(mpu_opps, dsp_opps, l3_opps); + omap_pm_if_early_init(); if (cpu_is_omap2420()) omap2420_clk_init(); @@ -339,17 +394,61 @@ void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0, else if (cpu_is_omap44xx()) omap4xxx_clk_init(); else - pr_err("Could not init clock framework - unknown CPU\n"); + pr_err("Could not init clock framework - unknown SoC\n"); +} +void __init omap2_init_common_devices(struct omap_sdrc_params *sdrc_cs0, + struct omap_sdrc_params *sdrc_cs1) +{ omap_serial_early_init(); -#ifndef CONFIG_PM_RUNTIME - skip_setup_idle = 1; -#endif - omap_hwmod_late_init(skip_setup_idle); + omap_hwmod_late_init(); + if (cpu_is_omap24xx() || cpu_is_omap34xx()) { omap2_sdrc_init(sdrc_cs0, sdrc_cs1); _omap2_init_reprogram_sdrc(); } gpmc_init(); + + omap_irq_base_init(); +} + +/* + * NOTE: Please use ioremap + __raw_read/write where possible instead of these + */ + +u8 omap_readb(u32 pa) +{ + return __raw_readb(OMAP2_L4_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readb); + +u16 omap_readw(u32 pa) +{ + return __raw_readw(OMAP2_L4_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readw); + +u32 omap_readl(u32 pa) +{ + return __raw_readl(OMAP2_L4_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_readl); + +void omap_writeb(u8 v, u32 pa) +{ + __raw_writeb(v, OMAP2_L4_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writeb); + +void omap_writew(u16 v, u32 pa) +{ + __raw_writew(v, OMAP2_L4_IO_ADDRESS(pa)); +} +EXPORT_SYMBOL(omap_writew); + +void omap_writel(u32 v, u32 pa) +{ + __raw_writel(v, OMAP2_L4_IO_ADDRESS(pa)); } +EXPORT_SYMBOL(omap_writel); |