diff options
author | Wolfgang Denk <wd@denx.de> | 2011-08-04 23:05:07 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2011-08-04 23:05:07 +0200 |
commit | fb6440ee9b110b759ef61fd80bbd0df1bbf0f37b (patch) | |
tree | dbde38784fb8b48c7f9b14e70a947fab3a1f3bab /arch/arm/include/asm/arch-omap4/sys_proto.h | |
parent | 01b0f50060923e89693bf155c677e4f665916b3f (diff) | |
parent | b608b95753873a5073f550cca002c4bebf1a18f5 (diff) |
Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm:
drivers/rtc: add Marvell Integrated RTC
Armada100: Add Board Support for Marvell GuruPlug-Display
Armada100: MFP macro naming correction
arm: auto gen asm-offsets.h for mb86r0x
spear: fix build errors for spear3xx/spear600 platforms
cosmetic: arm: lib/board.c: Coding Style cleanup
ARM: versatile: fix board support
SMDKV310: Enable device tree support
SMDKV310: MMC_SPL: Fix building when using "make O="
arm: a320: enable tagged list support
arm: a320: fix multiline comment style
ARMv7: u8500_href: Add missing header to fix compiler warning
Removed unused define, CONFIG_ARMV7.
avr32: add grasshopper (ICnova AP7000) board
AT91/SPI: fix atmel_dataflash_spi.c to allow building without warnings
MAKEALL: remove AT91 boards that are in boards.cfg
AT91: Makes AT91SAM9263-EK build correctly against u-boot-atmel/master
AT91: Makes AT91SAM9263 SoC build correctly against u-boot-atmel/master
AT91: Board fix for AT91SAM9261-EK
AT91: SoC fix at91sam9261_matrix.h
AT91: Makes AT91SAM9RL-EK build correctly against u-boot-atmel/master
AT91: Makes AT91SAM9RL SoC build correctly against u-boot-atmel/master
AT91: change common at91sam9261 files to compile with new scheme
AT91: fix mistake in at91sam9260_devices.c(spi1_hw_init)
a/a/c/arm920t/at91/reset.c: drop obsolete CONFIG_AT91RM9200_USART
README: fix arm920t/at91 path
net/eth.c: drop obsolete at91rm9200 support
README.at91-soc: remove AT91(RM9200) joining notice
a/a/c/arm920t/cpu.c: remove CONFIG_AT91_LEGACY warning
MAKEALL: remove obsolete at91rm9200 soc
ARM: remove obsolete at91rm9200
omap4: clock init support for omap4460
omap4: support TPS programming
omap: reuse omap3 gpio support in omap4
omap4: sdram init changes for omap4460
omap4: add omap4460 revision detection
mkimage: Add OMAP boot image support
omap: add MMC and FAT support to SPL
omap: add basic SPL support
armv7: start.S: fixes and enhancements for SPL
omap4: automatic sdram detection
omap4: calculate EMIF register values
omap4: add sdram init support
omap4: add clock support
omap4: add OMAP4430 revision check
omap4: cleanup pin mux data
omap4: utility function to identify the context of hw init
DA8xx: fix LPSC constants
DA8xx: switch an enum to defines for consistency
DA8xx: add MMC/SD controller addresses
DaVinci EMAC: declare function for all DA8xx CPUs
DA8xx: add generic GPIO driver
DaVinci: rename gpio_defs.h to gpio.h
omap3evm: eth: Include functions only when necessary
omap3evm: Update ethernet reset sequence for Rev.G board
omap3evm: eth: split function setup_net_chip
omap3: Include array definition only when it is used
omap730p2: fix build breaks
omap2420h4: fix build breaks
omap1610inn: fix build breaks
omap1510inn: fix build breaks
omap5912osk: fix build breaks
omap1610h2: fix build breaks
Diffstat (limited to 'arch/arm/include/asm/arch-omap4/sys_proto.h')
-rw-r--r-- | arch/arm/include/asm/arch-omap4/sys_proto.h | 72 |
1 files changed, 70 insertions, 2 deletions
diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h index 4fa4f4b2db..a81f8e5c24 100644 --- a/arch/arm/include/asm/arch-omap4/sys_proto.h +++ b/arch/arm/include/asm/arch-omap4/sys_proto.h @@ -22,21 +22,89 @@ #define _SYS_PROTO_H_ #include <asm/arch/omap4.h> +#include <asm/arch/clocks.h> #include <asm/io.h> +#include <asm/omap_common.h> +#include <asm/arch/mux_omap4.h> struct omap_sysinfo { char *board_string; }; +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 set_muxconf_regs(void); +void do_set_mux(u32 base, struct pad_conf_entry const *array, int size); +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 *omap4_rev_string); +void setup_clocks_for_console(void); +void prcm_init(void); +void bypass_dpll(u32 *const base); +void freq_update_core(void); +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); -extern const struct omap_sysinfo sysinfo; +static inline u32 running_from_sdram(void) +{ + u32 pc; + asm volatile ("mov %0, pc" : "=r" (pc)); + return ((pc >= OMAP44XX_DRAM_ADDR_SPACE_START) && + (pc < OMAP44XX_DRAM_ADDR_SPACE_END)); +} + +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. + */ + return running_from_sdram(); +} +/* + * The basic hardware init of OMAP(s_init()) can happen in 4 + * different contexts: + * 1. SPL running from SRAM + * 2. U-Boot running from FLASH + * 3. Non-XIP U-Boot loaded to SDRAM by SPL + * 4. Non-XIP U-Boot loaded to SDRAM by ROM code using the + * Configuration Header feature + * + * 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) +{ +#ifdef CONFIG_SPL_BUILD + return OMAP_INIT_CONTEXT_SPL; +#else + if (uboot_loaded_by_spl()) + return OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL; + else if (running_from_sdram()) + return OMAP_INIT_CONTEXT_UBOOT_AFTER_CH; + else + return OMAP_INIT_CONTEXT_UBOOT_FROM_NOR; +#endif +} + +static inline u32 omap_revision(void) +{ + extern u32 *const omap4_revision; + return *omap4_revision; +} #endif |