* [PATCH v2] soc: sifive: ccache: reduce printing on init
@ 2022-09-02 17:10 Ben Dooks
0 siblings, 0 replies; only message in thread
From: Ben Dooks @ 2022-09-02 17:10 UTC (permalink / raw)
To: palmer, paul.walmsley, aou, greentime.hu, conor.dooley,
linux-kernel, linux-riscv, robh+dt, krzysztof.kozlowski+dt,
zong.li
Cc: Ben Dooks
The driver prints out 6 lines on startup, which can easily be redcued
to two lines without losing any information.
Note, to make the types work better, uint64_t has been replaced with
ULL to make the unsigned long long match the format in the print
statement.
Signed-off-by: Ben Dooks <ben.dooks@sifive.com>
---
v2: use BIT_ULL() for the values.
---
drivers/soc/sifive/sifive_ccache.c | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)
diff --git a/drivers/soc/sifive/sifive_ccache.c b/drivers/soc/sifive/sifive_ccache.c
index 46ce33db7d30..40d2ac7895a2 100644
--- a/drivers/soc/sifive/sifive_ccache.c
+++ b/drivers/soc/sifive/sifive_ccache.c
@@ -76,20 +76,17 @@ static void setup_sifive_debug(void)
static void ccache_config_read(void)
{
- u32 regval, val;
-
- regval = readl(ccache_base + SIFIVE_CCACHE_CONFIG);
- val = regval & 0xFF;
- pr_info("CCACHE: No. of Banks in the cache: %d\n", val);
- val = (regval & 0xFF00) >> 8;
- pr_info("CCACHE: No. of ways per bank: %d\n", val);
- val = (regval & 0xFF0000) >> 16;
- pr_info("CCACHE: Sets per bank: %llu\n", (uint64_t)1 << val);
- val = (regval & 0xFF000000) >> 24;
- pr_info("CCACHE: Bytes per cache block: %llu\n", (uint64_t)1 << val);
-
- regval = readl(ccache_base + SIFIVE_CCACHE_WAYENABLE);
- pr_info("CCACHE: Index of the largest way enabled: %d\n", regval);
+ u32 cfg;
+
+ cfg = readl(ccache_base + SIFIVE_CCACHE_CONFIG);
+
+ pr_info("CCACHE: %u banks, %u ways, sets/bank=%llu, bytes/block=%llu\n",
+ (cfg & 0xff), (cfg >> 8) & 0xff,
+ BIT_ULL((cfg >> 16) & 0xff),
+ BIT_ULL((cfg >> 24) & 0xff));
+
+ cfg = readl(ccache_base + SIFIVE_CCACHE_WAYENABLE);
+ pr_info("CCACHE: Index of the largest way enabled: %d\n", cfg);
}
static const struct of_device_id sifive_ccache_ids[] = {
--
2.35.1
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