From 4a88d0ce494034fbb8dd0076d80e71b38abf5748 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Tue, 5 Aug 2008 17:38:41 +0800 Subject: Blackfin arch: Functional power management support Merge VR Regulator Hibernate wakeups into set_irq_wake for internal interrupts. Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/Kconfig | 36 ------------------------------------ 1 file changed, 36 deletions(-) (limited to 'arch/blackfin/Kconfig') diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 5a097c46bc4..cc2add7e39e 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -933,13 +933,6 @@ endchoice comment "Possible Suspend Mem / Hibernate Wake-Up Sources" depends on PM -config PM_BFIN_WAKE_RTC - bool "Allow Wake-Up from RESET and on-chip RTC" - depends on PM - default n - help - Enable RTC Wake-Up (Voltage Regulator Power-Up) - config PM_BFIN_WAKE_PH6 bool "Allow Wake-Up from on-chip PHY or PH6 GP" depends on PM && (BF52x || BF534 || BF536 || BF537) @@ -947,41 +940,12 @@ config PM_BFIN_WAKE_PH6 help Enable PHY and PH6 GP Wake-Up (Voltage Regulator Power-Up) -config PM_BFIN_WAKE_CAN - bool "Allow Wake-Up from on-chip CAN0/1" - depends on PM && (BF54x || BF534 || BF536 || BF537) - default n - help - Enable CAN0/1 Wake-Up (Voltage Regulator Power-Up) - config PM_BFIN_WAKE_GP bool "Allow Wake-Up from GPIOs" depends on PM && BF54x default n help Enable General-Purpose Wake-Up (Voltage Regulator Power-Up) - -config PM_BFIN_WAKE_USB - bool "Allow Wake-Up from on-chip USB" - depends on PM && (BF54x || BF52x) - default n - help - Enable USB Wake-Up (Voltage Regulator Power-Up) - -config PM_BFIN_WAKE_KEYPAD - bool "Allow Wake-Up from on-chip Keypad" - depends on PM && BF54x - default n - help - Enable Keypad Wake-Up (Voltage Regulator Power-Up) - -config PM_BFIN_WAKE_ROTARY - bool "Allow Wake-Up from on-chip Rotary" - depends on PM && BF54x - default n - help - Enable Rotary Wake-Up (Voltage Regulator Power-Up) - endmenu menu "CPU Frequency scaling" -- cgit v1.2.3 From 251383c7c50cf17664a4d7d60d3a52d8827a0e11 Mon Sep 17 00:00:00 2001 From: Robin Getz Date: Thu, 14 Aug 2008 15:12:55 +0800 Subject: Blackfin arch: Allow ins functions to have a low latency version Signed-off-by: Robin Getz Signed-off-by: Bryan Wu --- arch/blackfin/Kconfig | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'arch/blackfin/Kconfig') diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index cc2add7e39e..ededf9319f3 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -622,6 +622,33 @@ config CPLB_SWITCH_TAB_L1 If enabled, the CPLB Switch Tables are linked into L1 data memory. (less latency) +comment "Speed Optimizations" +config BFIN_INS_LOWOVERHEAD + bool "ins[bwl] low overhead, higher interrupt latency" + default y + help + Reads on the Blackfin are speculative. In Blackfin terms, this means + they can be interrupted at any time (even after they have been issued + on to the external bus), and re-issued after the interrupt occurs. + For memory - this is not a big deal, since memory does not change if + it sees a read. + + If a FIFO is sitting on the end of the read, it will see two reads, + when the core only sees one since the FIFO receives both the read + which is cancelled (and not delivered to the core) and the one which + is re-issued (which is delivered to the core). + + To solve this, interrupts are turned off before reads occur to + I/O space. This option controls which the overhead/latency of + controlling interrupts during this time + "n" turns interrupts off every read + (higher overhead, but lower interrupt latency) + "y" turns interrupts off every loop + (low overhead, but longer interrupt latency) + + default behavior is to leave this set to on (type "Y"). If you are experiencing + interrupt latency issues, it is safe and OK to turn this off. + endmenu -- cgit v1.2.3 From 130de7cebe20a74261a75bb0c6026a3199cdb980 Mon Sep 17 00:00:00 2001 From: Benjamin Matthews Date: Thu, 14 Aug 2008 14:55:54 +0800 Subject: Blackfin arch: add support for the BlackStamp board Signed-off-by: Benjamin Matthews Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/Kconfig | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/blackfin/Kconfig') diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index ededf9319f3..f64d25973a3 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -249,7 +249,7 @@ config MEM_MT48LC8M32B2B5_7 config MEM_MT48LC32M16A2TG_75 bool - depends on (BFIN527_EZKIT || BFIN532_IP0X) + depends on (BFIN527_EZKIT || BFIN532_IP0X || BLACKSTAMP) default y source "arch/blackfin/mach-bf527/Kconfig" @@ -292,7 +292,7 @@ config CLKIN_HZ int "Frequency of the crystal on the board in Hz" default "11059200" if BFIN533_STAMP default "27000000" if BFIN533_EZKIT - default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS) + default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS || BLACKSTAMP) default "30000000" if BFIN561_EZKIT default "24576000" if PNAV10 default "10000000" if BFIN532_IP0X @@ -332,7 +332,7 @@ config VCO_MULT default "22" if BFIN533_BLUETECHNIX_CM default "20" if (BFIN537_BLUETECHNIX_CM || BFIN527_BLUETECHNIX_CM || BFIN561_BLUETECHNIX_CM) default "20" if BFIN561_EZKIT - default "16" if H8606_HVSISTEMAS + default "16" if (H8606_HVSISTEMAS || BLACKSTAMP) help This controls the frequency of the on-chip PLL. This can be between 1 and 64. PLL Frequency = (Crystal Frequency) * (this setting) -- cgit v1.2.3