From 8c688bc4de4856f20193e6f0bc92e7273e8cf7ad Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 24 Oct 2014 01:30:40 +0900 Subject: [PATCH] kconfig: move CONFIG_SYS_HZ to lib/Kconfig CONFIG_SYS_HZ is always defined as 1000 in config_fallbacks.h (but some boards still have redundant definitions). This commit moves the definition and the document in README to Kconfig. Since lib/Kconfig can assure that CONFIG_SYS_HZ is 1000, the sanity check in lib/time.c should be removed. Signed-off-by: Masahiro Yamada Reviewed-by: Marek Vasut --- README | 7 ------- include/config_fallbacks.h | 4 ---- include/configs/cm_fx6.h | 1 - include/configs/edb93xx.h | 1 - include/configs/ks2_evm.h | 1 - include/configs/ls1021aqds.h | 1 - include/configs/ls1021atwr.h | 1 - include/configs/ls2085a_common.h | 2 -- include/configs/sunxi-common.h | 2 -- include/configs/tqma6.h | 1 - lib/Kconfig | 8 ++++++++ lib/time.c | 4 ---- 12 files changed, 8 insertions(+), 25 deletions(-) diff --git a/README b/README index 4dbf2d4050..3ff793266b 100644 --- a/README +++ b/README @@ -623,13 +623,6 @@ The following options need to be configured: exists, unlike the similar options in the Linux kernel. Do not set these options unless they apply! -- CPU timer options: - CONFIG_SYS_HZ - - The frequency of the timer returned by get_timer(). - get_timer() must operate in milliseconds and this CONFIG - option must be set to 1000. - - Linux Kernel Interface: CONFIG_CLOCKS_IN_MHZ diff --git a/include/config_fallbacks.h b/include/config_fallbacks.h index 76818f673f..7d8daa2b8e 100644 --- a/include/config_fallbacks.h +++ b/include/config_fallbacks.h @@ -79,10 +79,6 @@ #define CONFIG_SYS_PROMPT "=> " #endif -#ifndef CONFIG_SYS_HZ -#define CONFIG_SYS_HZ 1000 -#endif - #ifndef CONFIG_FIT_SIGNATURE #define CONFIG_IMAGE_FORMAT_LEGACY #endif diff --git a/include/configs/cm_fx6.h b/include/configs/cm_fx6.h index a20c373321..f7277eb1d1 100644 --- a/include/configs/cm_fx6.h +++ b/include/configs/cm_fx6.h @@ -19,7 +19,6 @@ #define CONFIG_MX6 #define CONFIG_SYS_LITTLE_ENDIAN #define CONFIG_MACH_TYPE 4273 -#define CONFIG_SYS_HZ 1000 #ifndef CONFIG_SPL_BUILD #define CONFIG_DM diff --git a/include/configs/edb93xx.h b/include/configs/edb93xx.h index 37bdcc0f33..47a8420f42 100644 --- a/include/configs/edb93xx.h +++ b/include/configs/edb93xx.h @@ -89,7 +89,6 @@ #define CONFIG_EP93XX 1 /* in a Cirrus Logic 93xx SoC */ #define CONFIG_SYS_CLK_FREQ 14745600 /* EP93xx has a 14.7456 clock */ -#define CONFIG_SYS_HZ 1000 /* decr freq: 1 ms ticks */ #undef CONFIG_USE_IRQ /* Don't need IRQ/FIQ */ /* Monitor configuration */ diff --git a/include/configs/ks2_evm.h b/include/configs/ks2_evm.h index 51926f721f..137d9b0d32 100644 --- a/include/configs/ks2_evm.h +++ b/include/configs/ks2_evm.h @@ -23,7 +23,6 @@ #define CONFIG_ARMV7 #define CONFIG_ARCH_CPU_INIT #define CONFIG_SYS_ARCH_TIMER -#define CONFIG_SYS_HZ 1000 #define CONFIG_SYS_TEXT_BASE 0x0c001000 #define CONFIG_SPL_TARGET "u-boot-spi.gph" #define CONFIG_SYS_DCACHE_OFF diff --git a/include/configs/ls1021aqds.h b/include/configs/ls1021aqds.h index 42214262f4..d1f6ea7e7b 100644 --- a/include/configs/ls1021aqds.h +++ b/include/configs/ls1021aqds.h @@ -360,7 +360,6 @@ unsigned long get_board_ddr_clk(void); #define CONFIG_SYS_MEMTEST_END 0x9fffffff #define CONFIG_SYS_LOAD_ADDR 0x82000000 -#define CONFIG_SYS_HZ 1000 /* * Stack sizes diff --git a/include/configs/ls1021atwr.h b/include/configs/ls1021atwr.h index 5868287057..3c73af8ac3 100644 --- a/include/configs/ls1021atwr.h +++ b/include/configs/ls1021atwr.h @@ -261,7 +261,6 @@ #define CONFIG_SYS_MEMTEST_END 0x9fffffff #define CONFIG_SYS_LOAD_ADDR 0x82000000 -#define CONFIG_SYS_HZ 1000 /* * Stack sizes diff --git a/include/configs/ls2085a_common.h b/include/configs/ls2085a_common.h index a72e1f3567..6fe032c9ff 100644 --- a/include/configs/ls2085a_common.h +++ b/include/configs/ls2085a_common.h @@ -253,8 +253,6 @@ #define CONFIG_NR_DRAM_BANKS 3 -#define CONFIG_SYS_HZ 1000 - #define CONFIG_HWCONFIG #define HWCONFIG_BUFFER_SIZE 128 diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h index 1d947d7d9e..0c117bc5e7 100644 --- a/include/configs/sunxi-common.h +++ b/include/configs/sunxi-common.h @@ -105,8 +105,6 @@ /* standalone support */ #define CONFIG_STANDALONE_LOAD_ADDR 0x42000000 -#define CONFIG_SYS_HZ 1000 - /* baudrate */ #define CONFIG_BAUDRATE 115200 diff --git a/include/configs/tqma6.h b/include/configs/tqma6.h index 2705d2c55f..d97a9613ae 100644 --- a/include/configs/tqma6.h +++ b/include/configs/tqma6.h @@ -450,7 +450,6 @@ #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE #define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR -#define CONFIG_SYS_HZ 1000 #define CONFIG_CMDLINE_EDITING #define CONFIG_STACKSIZE (128u * SZ_1K) diff --git a/lib/Kconfig b/lib/Kconfig index 88e5da72ec..a889c229cb 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -8,4 +8,12 @@ config CC_OPTIMIZE_LIBS_FOR_SPEED If unsure, say N. +config SYS_HZ + int + default 1000 + help + The frequency of the timer returned by get_timer(). + get_timer() must operate in milliseconds and this option must be + set to 1000. + endmenu diff --git a/lib/time.c b/lib/time.c index c7b026498b..5ebd1be48f 100644 --- a/lib/time.c +++ b/lib/time.c @@ -10,10 +10,6 @@ #include #include -#if CONFIG_SYS_HZ != 1000 -#warning "CONFIG_SYS_HZ must be 1000 and should not be defined by platforms" -#endif - #ifndef CONFIG_WD_PERIOD # define CONFIG_WD_PERIOD (10 * 1000 * 1000) /* 10 seconds default */ #endif -- 2.25.1