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drivers: mcux_flexcan driver errata

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in NXP flexcan driver we need add ERRATA for
ERRATA 5461 and 5829, reproted in #31555

Signed-off-by: Hake Huang <hake.huang@oss.nxp.com>
This commit is contained in:
Hake Huang 2021-01-28 11:51:21 +08:00 • committed by Anas Nashif
commit a50b69dfb7
1 changed files with 10 additions and 1 deletions
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11
drivers/can/can_mcux_flexcan.c
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@ -35,6 +35,14 @@ LOG_MODULE_REGISTER(can_mcux_flexcan);
#error You must either set a sampling-point or timings (phase-seg* and prop-seg) #error You must either set a sampling-point or timings (phase-seg* and prop-seg)
#endif #endif
#if ((defined(FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) && FSL_FEATURE_FLEXCAN_HAS_ERRATA_5641) || \
(defined(FSL_FEATURE_FLEXCAN_HAS_ERRATA_5829) && FSL_FEATURE_FLEXCAN_HAS_ERRATA_5829))
/* the first valid MB should be occupied by ERRATA 5461 or 5829. */
#define RX_START_IDX 1
#else
#define RX_START_IDX 0
#endif
/* /*
* RX message buffers (filters) will take up the first N message * RX message buffers (filters) will take up the first N message
* buffers. The rest are available for TX use. * buffers. The rest are available for TX use.
@ -165,6 +173,7 @@ static int mcux_flexcan_set_mode(const struct device *dev, enum can_mode mode)
} }
FLEXCAN_GetDefaultConfig(&flexcan_config); FLEXCAN_GetDefaultConfig(&flexcan_config);
flexcan_config.maxMbNum = FSL_FEATURE_FLEXCAN_HAS_MESSAGE_BUFFER_MAX_NUMBERn(0);
flexcan_config.clkSrc = config->clk_source; flexcan_config.clkSrc = config->clk_source;
flexcan_config.baudRate = clock_freq / flexcan_config.baudRate = clock_freq /
(1U + data->timing.prop_seg + data->timing.phase_seg1 + (1U + data->timing.prop_seg + data->timing.phase_seg1 +
@ -370,7 +379,7 @@ static int mcux_flexcan_attach_isr(const struct device *dev,
k_mutex_lock(&data->rx_mutex, K_FOREVER); k_mutex_lock(&data->rx_mutex, K_FOREVER);
/* Find and allocate RX message buffer */ /* Find and allocate RX message buffer */
for (i = 0; i < MCUX_FLEXCAN_MAX_RX; i++) { for (i = RX_START_IDX; i < MCUX_FLEXCAN_MAX_RX; i++) {
if (!atomic_test_and_set_bit(data->rx_allocs, i)) { if (!atomic_test_and_set_bit(data->rx_allocs, i)) {
alloc = i; alloc = i;
break; break;