diff options
Diffstat (limited to 'arch/arm/include/asm/arch-omap4/sys_proto.h')
| -rw-r--r-- | arch/arm/include/asm/arch-omap4/sys_proto.h | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h index 1aacbb12e..4146e2181 100644 --- a/arch/arm/include/asm/arch-omap4/sys_proto.h +++ b/arch/arm/include/asm/arch-omap4/sys_proto.h @@ -21,7 +21,7 @@ #ifndef _SYS_PROTO_H_ #define _SYS_PROTO_H_ -#include <asm/arch/omap4.h> +#include <asm/arch/omap.h> #include <asm/arch/clocks.h> #include <asm/io.h> #include <asm/omap_common.h> @@ -32,17 +32,17 @@ struct omap_sysinfo { }; extern const struct omap_sysinfo sysinfo; -extern struct omap4_prcm_regs *const prcm; - void gpmc_init(void); void watchdog_init(void); u32 get_device_type(void); void do_set_mux(u32 base, struct pad_conf_entry const *array, int size); +void set_muxconf_regs_essential(void); void set_muxconf_regs_non_essential(void); void sr32(void *, u32, u32, u32); u32 wait_on_value(u32, u32, void *, u32); void sdelay(unsigned long); void set_pl310_ctrl_reg(u32 val); +void omap_rev_string(char *omap_rev_string); void setup_clocks_for_console(void); void prcm_init(void); void bypass_dpll(u32 *const base); @@ -51,7 +51,17 @@ u32 get_sys_clk_freq(void); u32 omap4_ddr_clk(void); void cancel_out(u32 *num, u32 *den, u32 den_limit); void sdram_init(void); -u32 omap4_sdram_size(void); +u32 omap_sdram_size(void); +u32 cortex_rev(void); +void init_omap_revision(void); +void do_io_settings(void); +/* + * This is used to verify if the configuration header + * was executed by Romcode prior to control of transfer + * to the bootloader. SPL is responsible for saving and + * passing this to the u-boot. + */ +extern struct omap_boot_parameters boot_params; static inline u32 running_from_sdram(void) { @@ -64,15 +74,17 @@ static inline u32 running_from_sdram(void) static inline u8 uboot_loaded_by_spl(void) { /* - * Configuration Header is not supported yet, so u-boot init running - * from SDRAM implies that it was loaded by SPL. When this situation - * changes one of these approaches could be taken: - * i. Pass a magic from SPL to U-Boot and U-Boot save it at a known - * location. - * ii. Check the OPP. CH can support only 50% OPP while SPL initializes - * the DPLLs at 100% OPP. + * u-boot can be running from sdram either because of configuration + * Header or by SPL. If because of CH, then the romcode sets the + * CHSETTINGS executed bit to true in the boot parameter structure that + * it passes to the bootloader.This parameter is stored in the ch_flags + * variable by both SPL and u-boot.Check out for CHSETTINGS, which is a + * mandatory section if CH is present. */ - return running_from_sdram(); + if ((boot_params.ch_flags) & (CH_FLAGS_CHSETTINGS)) + return 0; + else + return running_from_sdram(); } /* * The basic hardware init of OMAP(s_init()) can happen in 4 @@ -86,7 +98,7 @@ static inline u8 uboot_loaded_by_spl(void) * This function finds this context. * Defining as inline may help in compiling out unused functions in SPL */ -static inline u32 omap4_hw_init_context(void) +static inline u32 omap_hw_init_context(void) { #ifdef CONFIG_SPL_BUILD return OMAP_INIT_CONTEXT_SPL; |