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driver: nandflash: Add debug output of timing parameters #175

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driver: nandflash: Add debug output of timing parameters #175

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17 changes: 15 additions & 2 deletions driver/nandflash.c
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Original file line number Diff line number Diff line change
Expand Up @@ -159,10 +159,12 @@ static unsigned int smc_timing_encode_ncycles(unsigned int ncycles)

void nandflash_smc_conf(unsigned int mode, unsigned int cs)
{
unsigned int ncycles, mck_ps, pulse;
unsigned int ncycles, mck_ns, mck_ps, pulse;
unsigned int nwe_setup, nwe_pulse, nwe_hold, nwe_cycle;
unsigned int nrd_hold, nrd_pulse, nrd_cycle, tdf;
mck_ps = (1000000000 / MASTER_CLOCK) * 1000;
mck_ns = (1000000000 / MASTER_CLOCK);
mck_ps = mck_ns * 1000;

/*
Set write pulse length
NWE_PULSE = tWP
Expand Down Expand Up @@ -220,6 +222,17 @@ void nandflash_smc_conf(unsigned int mode, unsigned int cs)
nrd_cycle = max(ncycles, nrd_cycle);

/* NCS_RD_PULSE = NRD_CYCLE */

/* debug output of parameters */
dbg_loud("NAND: mode: %u, cs: %u, mck_ps: %u (%u ns), tdf: %u (%u ns)\n",
mode, cs, mck_ps, mck_ns, tdf, tdf * mck_ns);
dbg_loud("NAND: NWE: setup: %u (%u ns), pulse: %u (%u ns), hold: %u (%u ns), cycle: %u (%u ns)\n",
nwe_setup, nwe_setup * mck_ns, nwe_pulse, nwe_pulse * mck_ns,
nwe_hold, nwe_hold * mck_ns, nwe_cycle, nwe_cycle * mck_ns);
dbg_loud("NAND: NRD: setup: %u (%u ns), pulse: %u (%u ns), hold: %u (%u ns), cycle: %u (%u ns)\n",
0, 0, nrd_pulse, nrd_pulse * mck_ns,
nrd_hold, nrd_hold * mck_ns, nrd_cycle, nrd_cycle * mck_ns);

#if defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D3) ||\
defined(CONFIG_SAMA5D4) || defined(CONFIG_SAMA7G5)
writel(AT91C_SMC_SETUP_NWE(nwe_setup), ATMEL_BASE_SMC + SMC_SETUP(cs));
Expand Down