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net: rswitch: Parametrize port count

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The total port counts differ across variants of this IP in
R-Car S4 and R-Car X5H. Parametrize port count in preparation
for R-Car X5H addition into this driver. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
This commit is contained in:
Marek Vasut 2025-10-27 17:45:37 +01:00
parent c75eb213f6
commit a9d0819774
1 changed files with 7 additions and 4 deletions
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11
drivers/net/rswitch.c
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@ -27,8 +27,8 @@
#define RSWITCH_SLEEP_US 1000
#define RSWITCH_TIMEOUT_US 1000000
#define GWCA_TO_HW_INDEX(i) ((i) + 3)
#define HW_INDEX_TO_GWCA(i) ((i) - 3)
#define GWCA_TO_HW_INDEX(i, pt) ((i) + (pt))
#define HW_INDEX_TO_GWCA(i, pt) ((i) - (pt))
#define RSWITCH_MAX_CTAG_PCP 7
@ -282,6 +282,7 @@ struct rswitch_drv_data {
u32 coma_offset;
u32 etha_offset;
u32 gwca_offset;
int ports;
};
static inline void rswitch_flush_dcache(u32 addr, u32 len)
@ -674,13 +675,14 @@ static void rswitch_mfwd_init(struct rswitch_port_priv *priv)
{
struct rswitch_etha *etha = &priv->etha;
struct rswitch_gwca *gwca = &priv->gwca;
int gwca_index = HW_INDEX_TO_GWCA(gwca->index, priv->drv_data->ports);
int etha_index = etha->serdes.index;
writel(FWPC0_DEFAULT, priv->addr + FWPC0(etha_index));
writel(FWPC0_DEFAULT, priv->addr + FWPC0(gwca->index));
writel(RSWITCH_RX_CHAIN_INDEX,
priv->addr + FWPBFCSDC(HW_INDEX_TO_GWCA(gwca->index), etha_index));
priv->addr + FWPBFCSDC(gwca_index, etha_index));
writel(BIT(gwca->index),
priv->addr + FWPBFC(etha_index));
@ -1041,7 +1043,7 @@ static int rswitch_port_probe(struct udevice *dev)
gwca->index = 1;
gwca->addr = priv->addr + priv->drv_data->gwca_offset + gwca->index * RSWITCH_GWCA_SIZE;
gwca->index = GWCA_TO_HW_INDEX(gwca->index);
gwca->index = GWCA_TO_HW_INDEX(gwca->index, priv->drv_data->ports);
/* Toggle the reset so we can access the PHYs */
ret = rswitch_reset(priv);
@ -1189,6 +1191,7 @@ static int rswitch_bind(struct udevice *parent)
}
static const struct rswitch_drv_data r8a779f0_drv_data = {
.ports = 3,
.coma_offset = 0x9000,
.etha_offset = 0xa000,
.gwca_offset = 0x10000,