struct rcar_canfd_hw_info {
enum rcanfd_chip_id chip_id;
+ u8 max_channels;
};
/* Channel priv data */
struct reset_control *rstc1;
struct reset_control *rstc2;
const struct rcar_canfd_hw_info *info;
- u32 max_channels;
};
/* CAN FD mode nominal rate constants */
static const struct rcar_canfd_hw_info rcar_gen3_hw_info = {
.chip_id = RENESAS_RCAR_GEN3,
+ .max_channels = 2,
};
static const struct rcar_canfd_hw_info rzg2l_hw_info = {
.chip_id = RENESAS_RZG2L,
+ .max_channels = 2,
};
static const struct rcar_canfd_hw_info r8a779a0_hw_info = {
.chip_id = RENESAS_R8A779A0,
+ .max_channels = 8,
};
/* Helper functions */
rcar_canfd_set_mode(gpriv);
/* Transition all Channels to reset mode */
- for_each_set_bit(ch, &gpriv->channels_mask, gpriv->max_channels) {
+ for_each_set_bit(ch, &gpriv->channels_mask, gpriv->info->max_channels) {
rcar_canfd_clear_bit(gpriv->base,
RCANFD_CCTR(ch), RCANFD_CCTR_CSLPR);
rcar_canfd_set_bit(gpriv->base, RCANFD_GCFG, cfg);
/* Channel configuration settings */
- for_each_set_bit(ch, &gpriv->channels_mask, gpriv->max_channels) {
+ for_each_set_bit(ch, &gpriv->channels_mask, gpriv->info->max_channels) {
rcar_canfd_set_bit(gpriv->base, RCANFD_CCTR(ch),
RCANFD_CCTR_ERRD);
rcar_canfd_update_bit(gpriv->base, RCANFD_CCTR(ch),
struct rcar_canfd_global *gpriv = dev_id;
u32 ch;
- for_each_set_bit(ch, &gpriv->channels_mask, gpriv->max_channels)
+ for_each_set_bit(ch, &gpriv->channels_mask, gpriv->info->max_channels)
rcar_canfd_handle_global_err(gpriv, ch);
return IRQ_HANDLED;
struct rcar_canfd_global *gpriv = dev_id;
u32 ch;
- for_each_set_bit(ch, &gpriv->channels_mask, gpriv->max_channels)
+ for_each_set_bit(ch, &gpriv->channels_mask, gpriv->info->max_channels)
rcar_canfd_handle_global_receive(gpriv, ch);
return IRQ_HANDLED;
/* Global error interrupts still indicate a condition specific
* to a channel. RxFIFO interrupt is a global interrupt.
*/
- for_each_set_bit(ch, &gpriv->channels_mask, gpriv->max_channels) {
+ for_each_set_bit(ch, &gpriv->channels_mask, gpriv->info->max_channels) {
rcar_canfd_handle_global_err(gpriv, ch);
rcar_canfd_handle_global_receive(gpriv, ch);
}
u32 ch;
/* Common FIFO is a per channel resource */
- for_each_set_bit(ch, &gpriv->channels_mask, gpriv->max_channels) {
+ for_each_set_bit(ch, &gpriv->channels_mask, gpriv->info->max_channels) {
rcar_canfd_handle_channel_err(gpriv, ch);
rcar_canfd_handle_channel_tx(gpriv, ch);
}
int err, ch_irq, g_irq;
int g_err_irq, g_recc_irq;
bool fdmode = true; /* CAN FD only mode - default */
- int max_channels;
char name[9] = "channelX";
int i;
info = of_device_get_match_data(&pdev->dev);
- max_channels = info->chip_id == RENESAS_R8A779A0 ? 8 : 2;
if (of_property_read_bool(pdev->dev.of_node, "renesas,no-can-fd"))
fdmode = false; /* Classical CAN only mode */
- for (i = 0; i < max_channels; ++i) {
+ for (i = 0; i < info->max_channels; ++i) {
name[7] = '0' + i;
of_child = of_get_child_by_name(pdev->dev.of_node, name);
if (of_child && of_device_is_available(of_child))
gpriv->channels_mask = channels_mask;
gpriv->fdmode = fdmode;
gpriv->info = info;
- gpriv->max_channels = max_channels;
gpriv->rstc1 = devm_reset_control_get_optional_exclusive(&pdev->dev,
"rstp_n");
rcar_canfd_configure_controller(gpriv);
/* Configure per channel attributes */
- for_each_set_bit(ch, &gpriv->channels_mask, max_channels) {
+ for_each_set_bit(ch, &gpriv->channels_mask, info->max_channels) {
/* Configure Channel's Rx fifo */
rcar_canfd_configure_rx(gpriv, ch);
goto fail_mode;
}
- for_each_set_bit(ch, &gpriv->channels_mask, max_channels) {
+ for_each_set_bit(ch, &gpriv->channels_mask, info->max_channels) {
err = rcar_canfd_channel_probe(gpriv, ch, fcan_freq);
if (err)
goto fail_channel;
return 0;
fail_channel:
- for_each_set_bit(ch, &gpriv->channels_mask, max_channels)
+ for_each_set_bit(ch, &gpriv->channels_mask, info->max_channels)
rcar_canfd_channel_remove(gpriv, ch);
fail_mode:
rcar_canfd_disable_global_interrupts(gpriv);
rcar_canfd_reset_controller(gpriv);
rcar_canfd_disable_global_interrupts(gpriv);
- for_each_set_bit(ch, &gpriv->channels_mask, gpriv->max_channels) {
+ for_each_set_bit(ch, &gpriv->channels_mask, gpriv->info->max_channels) {
rcar_canfd_disable_channel_interrupts(gpriv->ch[ch]);
rcar_canfd_channel_remove(gpriv, ch);
}