[U-Boot] do the files arch/powerpc/include/asm/fsl_{law, lbc}.h duplicate info?

Robert P. J. Day rpjday at crashcourse.ca
Mon Dec 14 15:59:36 CET 2015


  quite possibly a silly question but i'm looking at the header files
related to the powerpc local bus local access windows (of which i am
still woefully ignorant), and i see the following in two different
header files under arch/powerpc/include/asm.

                              fsl_law.h:

#define LAW_EN  0x80000000

#define SET_LAW_ENTRY(idx, a, sz, trgt) \
        { .index = idx, .addr = a, .size = sz, .trgt_id = trgt }

#define SET_LAW(a, sz, trgt) \
        { .index = -1, .addr = a, .size = sz, .trgt_id = trgt }

enum law_size {
        LAW_SIZE_4K = 0xb,
        LAW_SIZE_8K,
        LAW_SIZE_16K,
        LAW_SIZE_32K,
        LAW_SIZE_64K,
        LAW_SIZE_128K,
        LAW_SIZE_256K,
        LAW_SIZE_512K,
        LAW_SIZE_1M,
        LAW_SIZE_2M,
        LAW_SIZE_4M,
        LAW_SIZE_8M,
        LAW_SIZE_16M,
        LAW_SIZE_32M,
        LAW_SIZE_64M,
        LAW_SIZE_128M,
        LAW_SIZE_256M,
        LAW_SIZE_512M,
        LAW_SIZE_1G,
        LAW_SIZE_2G,
        LAW_SIZE_4G,
        LAW_SIZE_8G,
        LAW_SIZE_16G,
        LAW_SIZE_32G,
};

                               fsl_lbc.h

#define LBLAWAR_EN                      0x80000000
#define LBLAWAR_4KB                     0x0000000B
#define LBLAWAR_8KB                     0x0000000C
#define LBLAWAR_16KB                    0x0000000D
#define LBLAWAR_32KB                    0x0000000E
#define LBLAWAR_64KB                    0x0000000F
#define LBLAWAR_128KB                   0x00000010
#define LBLAWAR_256KB                   0x00000011
#define LBLAWAR_512KB                   0x00000012
#define LBLAWAR_1MB                     0x00000013
#define LBLAWAR_2MB                     0x00000014
#define LBLAWAR_4MB                     0x00000015
#define LBLAWAR_8MB                     0x00000016
#define LBLAWAR_16MB                    0x00000017
#define LBLAWAR_32MB                    0x00000018
#define LBLAWAR_64MB                    0x00000019
#define LBLAWAR_128MB                   0x0000001A
#define LBLAWAR_256MB                   0x0000001B
#define LBLAWAR_512MB                   0x0000001C
#define LBLAWAR_1GB                     0x0000001D
#define LBLAWAR_2GB                     0x0000001E

  that kind of looks like the same information, just with different
macro names. is there really a different meaning for that content
between those two files?

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================



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