diff options
| author | Kipisz, Steven <s-kipisz2@ti.com> | 2016-02-24 12:30:57 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-03-14 19:18:34 -0400 |
| commit | d88d6c8ccfe729c2bea3cb849076ba4a39e1e056 (patch) | |
| tree | 6cbc9713f4e4a262701b67074b852b594f8d049e /arch/arm | |
| parent | 5f8bb93b23199b7592c183123d971ef761999e63 (diff) | |
ARM: OMAP4/5: Add generic board detection hook
Many TI EVMs have capability to store relevant board information
such as DDR description in EEPROM. Further many pad configuration
variations can occur as part of revision changes in the platform.
In-order to support these at runtime, we for a board detection hook
which is available for override from board files that may desire to do
so.
NOTE: All TI EVMs are capable of detecting board information based on
early clocks that are configured. However, in case of additional needs
this can be achieved within the override logic from within the board
file.
Signed-off-by: Steve Kipisz <s-kipisz2@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/hwinit-common.c | 11 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-omap4/sys_proto.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-omap5/sys_proto.h | 1 |
3 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c index 91f2dead36..9e9376d0e6 100644 --- a/arch/arm/cpu/armv7/omap-common/hwinit-common.c +++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c @@ -97,6 +97,16 @@ int arch_cpu_init(void) } #endif /* CONFIG_ARCH_CPU_INIT */ +/** + * do_board_detect() - Detect board description + * + * Function to detect board description. This is expected to be + * overridden in the SoC family board file where desired. + */ +void __weak do_board_detect(void) +{ +} + /* * Routine: s_init * Description: Does early system init of watchdog, muxing, andclocks @@ -128,6 +138,7 @@ void s_init(void) do_io_settings(); #endif setup_early_clocks(); + do_board_detect(); prcm_init(); } diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h index 26e9a194f0..fbb52093c6 100644 --- a/arch/arm/include/asm/arch-omap4/sys_proto.h +++ b/arch/arm/include/asm/arch-omap4/sys_proto.h @@ -39,6 +39,7 @@ u32 wait_on_value(u32, u32, void *, u32); void sdelay(unsigned long); void setup_early_clocks(void); void prcm_init(void); +void do_board_detect(void); void bypass_dpll(u32 const base); void freq_update_core(void); u32 get_sys_clk_freq(void); diff --git a/arch/arm/include/asm/arch-omap5/sys_proto.h b/arch/arm/include/asm/arch-omap5/sys_proto.h index 1890262873..23a33cb233 100644 --- a/arch/arm/include/asm/arch-omap5/sys_proto.h +++ b/arch/arm/include/asm/arch-omap5/sys_proto.h @@ -50,6 +50,7 @@ u32 wait_on_value(u32, u32, void *, u32); void sdelay(unsigned long); void setup_early_clocks(void); void prcm_init(void); +void do_board_detect(void); void bypass_dpll(u32 const base); void freq_update_core(void); u32 get_sys_clk_freq(void); |