Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
Blackfin arch: When icache is off, make sure people know it
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
authored by
Robin Getz
and committed by
Bryan Wu
9de3a0b6
0d1cdd7a
+12
-5
arch/blackfin/kernel/setup.c
+12
-5
arch/blackfin/kernel/setup.c
···
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uint32_t revid;
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u_long cclk = 0, sclk = 0;
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-
u_int dcache_size = 0, dsup_banks = 0;
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cpu = CPU;
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mmu = "none";
···
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}
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/* Is it turned on? */
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-
if (!((bfin_read_DMEM_CONTROL()) & (ENDCPLB | DMC_ENABLE)))
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dcache_size = 0;
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seq_printf(m, "cache size\t: %d KB(L1 icache) "
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"%d KB(L1 dcache-%s) %d KB(L2 cache)\n",
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BFIN_ICACHESIZE / 1024, dcache_size,
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#if defined CONFIG_BFIN_WB
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"wb"
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#elif defined CONFIG_BFIN_WT
···
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seq_printf(m, "%s\n", cache);
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seq_printf(m, "icache setup\t: %d Sub-banks/%d Ways, %d Lines/Way\n",
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BFIN_ISUBBANKS, BFIN_IWAYS, BFIN_ILINES);
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seq_printf(m,
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"dcache setup\t: %d Super-banks/%d Sub-banks/%d Ways, %d Lines/Way\n",
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dsup_banks, BFIN_DSUBBANKS, BFIN_DWAYS,
···
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uint32_t revid;
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u_long cclk = 0, sclk = 0;
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+
u_int icache_size = BFIN_ICACHESIZE / 1024, dcache_size = 0, dsup_banks = 0;
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cpu = CPU;
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mmu = "none";
···
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}
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/* Is it turned on? */
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if (bfin_read_DMEM_CONTROL() & (ENDCPLB | DMC_ENABLE) != (ENDCPLB | DMC_ENABLE))
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dcache_size = 0;
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+
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if (bfin_read_IMEM_CONTROL() & (IMC | ENICPLB) == (IMC | ENICPLB))
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icache_size = 0;
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seq_printf(m, "cache size\t: %d KB(L1 icache) "
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"%d KB(L1 dcache-%s) %d KB(L2 cache)\n",
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+
icache_size, dcache_size,
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#if defined CONFIG_BFIN_WB
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"wb"
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#elif defined CONFIG_BFIN_WT
···
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seq_printf(m, "%s\n", cache);
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if (icache_size)
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seq_printf(m, "icache setup\t: %d Sub-banks/%d Ways, %d Lines/Way\n",
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BFIN_ISUBBANKS, BFIN_IWAYS, BFIN_ILINES);
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+
else
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seq_printf(m, "icache setup\t: off\n");
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+
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seq_printf(m,
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"dcache setup\t: %d Super-banks/%d Sub-banks/%d Ways, %d Lines/Way\n",
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dsup_banks, BFIN_DSUBBANKS, BFIN_DWAYS,