am335x: make get_board_rev() function weak
Current get_board_rev() function returns a hard coded value which is obviously incorrect for the majority of boards. Allow boards to provide a correct implementation by making this function weak. In addition open code the trivial and useless BOARD_REV_ID define and adjust the comment. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Cc: Tom Rini <trini@ti.com>
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@ -18,6 +18,7 @@
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#include <asm/arch/cpu.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/clock.h>
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#include <power/tps65910.h>
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#include <power/tps65910.h>
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#include <linux/compiler.h>
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struct ctrl_stat *cstat = (struct ctrl_stat *)CTRL_BASE;
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struct ctrl_stat *cstat = (struct ctrl_stat *)CTRL_BASE;
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@ -51,11 +52,11 @@ u32 get_cpu_type(void)
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/**
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/**
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* get_board_rev() - setup to pass kernel board revision information
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* get_board_rev() - setup to pass kernel board revision information
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* returns:(bit[0-3] sub version, higher bit[7-4] is higher version)
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* returns: 0 for the ATAG REVISION tag value.
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*/
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*/
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u32 get_board_rev(void)
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u32 __weak get_board_rev(void)
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{
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{
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return BOARD_REV_ID;
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return 0;
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}
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}
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/**
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/**
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@ -14,8 +14,6 @@
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#include <asm/ti-common/sys_proto.h>
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#include <asm/ti-common/sys_proto.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/cpu.h>
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#define BOARD_REV_ID 0x0
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u32 get_cpu_rev(void);
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u32 get_cpu_rev(void);
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u32 get_sysboot_value(void);
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u32 get_sysboot_value(void);
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