diff options
Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_vsc7514.c')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot_vsc7514.c | 419 |
1 files changed, 34 insertions, 385 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c index 9c488953f541..6f22aea08a64 100644 --- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c +++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c @@ -6,6 +6,7 @@ */ #include <linux/dsa/ocelot.h> #include <linux/interrupt.h> +#include <linux/iopoll.h> #include <linux/module.h> #include <linux/of_net.h> #include <linux/netdevice.h> @@ -25,6 +26,9 @@ #define VSC7514_VCAP_POLICER_BASE 128 #define VSC7514_VCAP_POLICER_MAX 191 +#define MEM_INIT_SLEEP_US 1000 +#define MEM_INIT_TIMEOUT_US 100000 + static const u32 *ocelot_regmap[TARGET_MAX] = { [ANA] = vsc7514_ana_regmap, [QS] = vsc7514_qs_regmap, @@ -97,378 +101,7 @@ static const struct reg_field ocelot_regfields[REGFIELD_MAX] = { }; static const struct ocelot_stat_layout ocelot_stats_layout[OCELOT_NUM_STATS] = { - [OCELOT_STAT_RX_OCTETS] = { - .name = "rx_octets", - .reg = SYS_COUNT_RX_OCTETS, - }, - [OCELOT_STAT_RX_UNICAST] = { - .name = "rx_unicast", - .reg = SYS_COUNT_RX_UNICAST, - }, - [OCELOT_STAT_RX_MULTICAST] = { - .name = "rx_multicast", - .reg = SYS_COUNT_RX_MULTICAST, - }, - [OCELOT_STAT_RX_BROADCAST] = { - .name = "rx_broadcast", - .reg = SYS_COUNT_RX_BROADCAST, - }, - [OCELOT_STAT_RX_SHORTS] = { - .name = "rx_shorts", - .reg = SYS_COUNT_RX_SHORTS, - }, - [OCELOT_STAT_RX_FRAGMENTS] = { - .name = "rx_fragments", - .reg = SYS_COUNT_RX_FRAGMENTS, - }, - [OCELOT_STAT_RX_JABBERS] = { - .name = "rx_jabbers", - .reg = SYS_COUNT_RX_JABBERS, - }, - [OCELOT_STAT_RX_CRC_ALIGN_ERRS] = { - .name = "rx_crc_align_errs", - .reg = SYS_COUNT_RX_CRC_ALIGN_ERRS, - }, - [OCELOT_STAT_RX_SYM_ERRS] = { - .name = "rx_sym_errs", - .reg = SYS_COUNT_RX_SYM_ERRS, - }, - [OCELOT_STAT_RX_64] = { - .name = "rx_frames_below_65_octets", - .reg = SYS_COUNT_RX_64, - }, - [OCELOT_STAT_RX_65_127] = { - .name = "rx_frames_65_to_127_octets", - .reg = SYS_COUNT_RX_65_127, - }, - [OCELOT_STAT_RX_128_255] = { - .name = "rx_frames_128_to_255_octets", - .reg = SYS_COUNT_RX_128_255, - }, - [OCELOT_STAT_RX_256_511] = { - .name = "rx_frames_256_to_511_octets", - .reg = SYS_COUNT_RX_256_511, - }, - [OCELOT_STAT_RX_512_1023] = { - .name = "rx_frames_512_to_1023_octets", - .reg = SYS_COUNT_RX_512_1023, - }, - [OCELOT_STAT_RX_1024_1526] = { - .name = "rx_frames_1024_to_1526_octets", - .reg = SYS_COUNT_RX_1024_1526, - }, - [OCELOT_STAT_RX_1527_MAX] = { - .name = "rx_frames_over_1526_octets", - .reg = SYS_COUNT_RX_1527_MAX, - }, - [OCELOT_STAT_RX_PAUSE] = { - .name = "rx_pause", - .reg = SYS_COUNT_RX_PAUSE, - }, - [OCELOT_STAT_RX_CONTROL] = { - .name = "rx_control", - .reg = SYS_COUNT_RX_CONTROL, - }, - [OCELOT_STAT_RX_LONGS] = { - .name = "rx_longs", - .reg = SYS_COUNT_RX_LONGS, - }, - [OCELOT_STAT_RX_CLASSIFIED_DROPS] = { - .name = "rx_classified_drops", - .reg = SYS_COUNT_RX_CLASSIFIED_DROPS, - }, - [OCELOT_STAT_RX_RED_PRIO_0] = { - .name = "rx_red_prio_0", - .reg = SYS_COUNT_RX_RED_PRIO_0, - }, - [OCELOT_STAT_RX_RED_PRIO_1] = { - .name = "rx_red_prio_1", - .reg = SYS_COUNT_RX_RED_PRIO_1, - }, - [OCELOT_STAT_RX_RED_PRIO_2] = { - .name = "rx_red_prio_2", - .reg = SYS_COUNT_RX_RED_PRIO_2, - }, - [OCELOT_STAT_RX_RED_PRIO_3] = { - .name = "rx_red_prio_3", - .reg = SYS_COUNT_RX_RED_PRIO_3, - }, - [OCELOT_STAT_RX_RED_PRIO_4] = { - .name = "rx_red_prio_4", - .reg = SYS_COUNT_RX_RED_PRIO_4, - }, - [OCELOT_STAT_RX_RED_PRIO_5] = { - .name = "rx_red_prio_5", - .reg = SYS_COUNT_RX_RED_PRIO_5, - }, - [OCELOT_STAT_RX_RED_PRIO_6] = { - .name = "rx_red_prio_6", - .reg = SYS_COUNT_RX_RED_PRIO_6, - }, - [OCELOT_STAT_RX_RED_PRIO_7] = { - .name = "rx_red_prio_7", - .reg = SYS_COUNT_RX_RED_PRIO_7, - }, - [OCELOT_STAT_RX_YELLOW_PRIO_0] = { - .name = "rx_yellow_prio_0", - .reg = SYS_COUNT_RX_YELLOW_PRIO_0, - }, - [OCELOT_STAT_RX_YELLOW_PRIO_1] = { - .name = "rx_yellow_prio_1", - .reg = SYS_COUNT_RX_YELLOW_PRIO_1, - }, - [OCELOT_STAT_RX_YELLOW_PRIO_2] = { - .name = "rx_yellow_prio_2", - .reg = SYS_COUNT_RX_YELLOW_PRIO_2, - }, - [OCELOT_STAT_RX_YELLOW_PRIO_3] = { - .name = "rx_yellow_prio_3", - .reg = SYS_COUNT_RX_YELLOW_PRIO_3, - }, - [OCELOT_STAT_RX_YELLOW_PRIO_4] = { - .name = "rx_yellow_prio_4", - .reg = SYS_COUNT_RX_YELLOW_PRIO_4, - }, - [OCELOT_STAT_RX_YELLOW_PRIO_5] = { - .name = "rx_yellow_prio_5", - .reg = SYS_COUNT_RX_YELLOW_PRIO_5, - }, - [OCELOT_STAT_RX_YELLOW_PRIO_6] = { - .name = "rx_yellow_prio_6", - .reg = SYS_COUNT_RX_YELLOW_PRIO_6, - }, - [OCELOT_STAT_RX_YELLOW_PRIO_7] = { - .name = "rx_yellow_prio_7", - .reg = SYS_COUNT_RX_YELLOW_PRIO_7, - }, - [OCELOT_STAT_RX_GREEN_PRIO_0] = { - .name = "rx_green_prio_0", - .reg = SYS_COUNT_RX_GREEN_PRIO_0, - }, - [OCELOT_STAT_RX_GREEN_PRIO_1] = { - .name = "rx_green_prio_1", - .reg = SYS_COUNT_RX_GREEN_PRIO_1, - }, - [OCELOT_STAT_RX_GREEN_PRIO_2] = { - .name = "rx_green_prio_2", - .reg = SYS_COUNT_RX_GREEN_PRIO_2, - }, - [OCELOT_STAT_RX_GREEN_PRIO_3] = { - .name = "rx_green_prio_3", - .reg = SYS_COUNT_RX_GREEN_PRIO_3, - }, - [OCELOT_STAT_RX_GREEN_PRIO_4] = { - .name = "rx_green_prio_4", - .reg = SYS_COUNT_RX_GREEN_PRIO_4, - }, - [OCELOT_STAT_RX_GREEN_PRIO_5] = { - .name = "rx_green_prio_5", - .reg = SYS_COUNT_RX_GREEN_PRIO_5, - }, - [OCELOT_STAT_RX_GREEN_PRIO_6] = { - .name = "rx_green_prio_6", - .reg = SYS_COUNT_RX_GREEN_PRIO_6, - }, - [OCELOT_STAT_RX_GREEN_PRIO_7] = { - .name = "rx_green_prio_7", - .reg = SYS_COUNT_RX_GREEN_PRIO_7, - }, - [OCELOT_STAT_TX_OCTETS] = { - .name = "tx_octets", - .reg = SYS_COUNT_TX_OCTETS, - }, - [OCELOT_STAT_TX_UNICAST] = { - .name = "tx_unicast", - .reg = SYS_COUNT_TX_UNICAST, - }, - [OCELOT_STAT_TX_MULTICAST] = { - .name = "tx_multicast", - .reg = SYS_COUNT_TX_MULTICAST, - }, - [OCELOT_STAT_TX_BROADCAST] = { - .name = "tx_broadcast", - .reg = SYS_COUNT_TX_BROADCAST, - }, - [OCELOT_STAT_TX_COLLISION] = { - .name = "tx_collision", - .reg = SYS_COUNT_TX_COLLISION, - }, - [OCELOT_STAT_TX_DROPS] = { - .name = "tx_drops", - .reg = SYS_COUNT_TX_DROPS, - }, - [OCELOT_STAT_TX_PAUSE] = { - .name = "tx_pause", - .reg = SYS_COUNT_TX_PAUSE, - }, - [OCELOT_STAT_TX_64] = { - .name = "tx_frames_below_65_octets", - .reg = SYS_COUNT_TX_64, - }, - [OCELOT_STAT_TX_65_127] = { - .name = "tx_frames_65_to_127_octets", - .reg = SYS_COUNT_TX_65_127, - }, - [OCELOT_STAT_TX_128_255] = { - .name = "tx_frames_128_255_octets", - .reg = SYS_COUNT_TX_128_255, - }, - [OCELOT_STAT_TX_256_511] = { - .name = "tx_frames_256_511_octets", - .reg = SYS_COUNT_TX_256_511, - }, - [OCELOT_STAT_TX_512_1023] = { - .name = "tx_frames_512_1023_octets", - .reg = SYS_COUNT_TX_512_1023, - }, - [OCELOT_STAT_TX_1024_1526] = { - .name = "tx_frames_1024_1526_octets", - .reg = SYS_COUNT_TX_1024_1526, - }, - [OCELOT_STAT_TX_1527_MAX] = { - .name = "tx_frames_over_1526_octets", - .reg = SYS_COUNT_TX_1527_MAX, - }, - [OCELOT_STAT_TX_YELLOW_PRIO_0] = { - .name = "tx_yellow_prio_0", - .reg = SYS_COUNT_TX_YELLOW_PRIO_0, - }, - [OCELOT_STAT_TX_YELLOW_PRIO_1] = { - .name = "tx_yellow_prio_1", - .reg = SYS_COUNT_TX_YELLOW_PRIO_1, - }, - [OCELOT_STAT_TX_YELLOW_PRIO_2] = { - .name = "tx_yellow_prio_2", - .reg = SYS_COUNT_TX_YELLOW_PRIO_2, - }, - [OCELOT_STAT_TX_YELLOW_PRIO_3] = { - .name = "tx_yellow_prio_3", - .reg = SYS_COUNT_TX_YELLOW_PRIO_3, - }, - [OCELOT_STAT_TX_YELLOW_PRIO_4] = { - .name = "tx_yellow_prio_4", - .reg = SYS_COUNT_TX_YELLOW_PRIO_4, - }, - [OCELOT_STAT_TX_YELLOW_PRIO_5] = { - .name = "tx_yellow_prio_5", - .reg = SYS_COUNT_TX_YELLOW_PRIO_5, - }, - [OCELOT_STAT_TX_YELLOW_PRIO_6] = { - .name = "tx_yellow_prio_6", - .reg = SYS_COUNT_TX_YELLOW_PRIO_6, - }, - [OCELOT_STAT_TX_YELLOW_PRIO_7] = { - .name = "tx_yellow_prio_7", - .reg = SYS_COUNT_TX_YELLOW_PRIO_7, - }, - [OCELOT_STAT_TX_GREEN_PRIO_0] = { - .name = "tx_green_prio_0", - .reg = SYS_COUNT_TX_GREEN_PRIO_0, - }, - [OCELOT_STAT_TX_GREEN_PRIO_1] = { - .name = "tx_green_prio_1", - .reg = SYS_COUNT_TX_GREEN_PRIO_1, - }, - [OCELOT_STAT_TX_GREEN_PRIO_2] = { - .name = "tx_green_prio_2", - .reg = SYS_COUNT_TX_GREEN_PRIO_2, - }, - [OCELOT_STAT_TX_GREEN_PRIO_3] = { - .name = "tx_green_prio_3", - .reg = SYS_COUNT_TX_GREEN_PRIO_3, - }, - [OCELOT_STAT_TX_GREEN_PRIO_4] = { - .name = "tx_green_prio_4", - .reg = SYS_COUNT_TX_GREEN_PRIO_4, - }, - [OCELOT_STAT_TX_GREEN_PRIO_5] = { - .name = "tx_green_prio_5", - .reg = SYS_COUNT_TX_GREEN_PRIO_5, - }, - [OCELOT_STAT_TX_GREEN_PRIO_6] = { - .name = "tx_green_prio_6", - .reg = SYS_COUNT_TX_GREEN_PRIO_6, - }, - [OCELOT_STAT_TX_GREEN_PRIO_7] = { - .name = "tx_green_prio_7", - .reg = SYS_COUNT_TX_GREEN_PRIO_7, - }, - [OCELOT_STAT_TX_AGED] = { - .name = "tx_aged", - .reg = SYS_COUNT_TX_AGING, - }, - [OCELOT_STAT_DROP_LOCAL] = { - .name = "drop_local", - .reg = SYS_COUNT_DROP_LOCAL, - }, - [OCELOT_STAT_DROP_TAIL] = { - .name = "drop_tail", - .reg = SYS_COUNT_DROP_TAIL, - }, - [OCELOT_STAT_DROP_YELLOW_PRIO_0] = { - .name = "drop_yellow_prio_0", - .reg = SYS_COUNT_DROP_YELLOW_PRIO_0, - }, - [OCELOT_STAT_DROP_YELLOW_PRIO_1] = { - .name = "drop_yellow_prio_1", - .reg = SYS_COUNT_DROP_YELLOW_PRIO_1, - }, - [OCELOT_STAT_DROP_YELLOW_PRIO_2] = { - .name = "drop_yellow_prio_2", - .reg = SYS_COUNT_DROP_YELLOW_PRIO_2, - }, - [OCELOT_STAT_DROP_YELLOW_PRIO_3] = { - .name = "drop_yellow_prio_3", - .reg = SYS_COUNT_DROP_YELLOW_PRIO_3, - }, - [OCELOT_STAT_DROP_YELLOW_PRIO_4] = { - .name = "drop_yellow_prio_4", - .reg = SYS_COUNT_DROP_YELLOW_PRIO_4, - }, - [OCELOT_STAT_DROP_YELLOW_PRIO_5] = { - .name = "drop_yellow_prio_5", - .reg = SYS_COUNT_DROP_YELLOW_PRIO_5, - }, - [OCELOT_STAT_DROP_YELLOW_PRIO_6] = { - .name = "drop_yellow_prio_6", - .reg = SYS_COUNT_DROP_YELLOW_PRIO_6, - }, - [OCELOT_STAT_DROP_YELLOW_PRIO_7] = { - .name = "drop_yellow_prio_7", - .reg = SYS_COUNT_DROP_YELLOW_PRIO_7, - }, - [OCELOT_STAT_DROP_GREEN_PRIO_0] = { - .name = "drop_green_prio_0", - .reg = SYS_COUNT_DROP_GREEN_PRIO_0, - }, - [OCELOT_STAT_DROP_GREEN_PRIO_1] = { - .name = "drop_green_prio_1", - .reg = SYS_COUNT_DROP_GREEN_PRIO_1, - }, - [OCELOT_STAT_DROP_GREEN_PRIO_2] = { - .name = "drop_green_prio_2", - .reg = SYS_COUNT_DROP_GREEN_PRIO_2, - }, - [OCELOT_STAT_DROP_GREEN_PRIO_3] = { - .name = "drop_green_prio_3", - .reg = SYS_COUNT_DROP_GREEN_PRIO_3, - }, - [OCELOT_STAT_DROP_GREEN_PRIO_4] = { - .name = "drop_green_prio_4", - .reg = SYS_COUNT_DROP_GREEN_PRIO_4, - }, - [OCELOT_STAT_DROP_GREEN_PRIO_5] = { - .name = "drop_green_prio_5", - .reg = SYS_COUNT_DROP_GREEN_PRIO_5, - }, - [OCELOT_STAT_DROP_GREEN_PRIO_6] = { - .name = "drop_green_prio_6", - .reg = SYS_COUNT_DROP_GREEN_PRIO_6, - }, - [OCELOT_STAT_DROP_GREEN_PRIO_7] = { - .name = "drop_green_prio_7", - .reg = SYS_COUNT_DROP_GREEN_PRIO_7, - }, + OCELOT_COMMON_STATS, }; static void ocelot_pll5_init(struct ocelot *ocelot) @@ -562,27 +195,43 @@ static const struct of_device_id mscc_ocelot_match[] = { }; MODULE_DEVICE_TABLE(of, mscc_ocelot_match); +static int ocelot_mem_init_status(struct ocelot *ocelot) +{ + unsigned int val; + int err; + + err = regmap_field_read(ocelot->regfields[SYS_RESET_CFG_MEM_INIT], + &val); + + return err ?: val; +} + static int ocelot_reset(struct ocelot *ocelot) { - int retries = 100; + int err; u32 val; - regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_INIT], 1); - regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_ENA], 1); + err = regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_INIT], 1); + if (err) + return err; - do { - msleep(1); - regmap_field_read(ocelot->regfields[SYS_RESET_CFG_MEM_INIT], - &val); - } while (val && --retries); + err = regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_ENA], 1); + if (err) + return err; - if (!retries) - return -ETIMEDOUT; + /* MEM_INIT is a self-clearing bit. Wait for it to be cleared (should be + * 100us) before enabling the switch core. + */ + err = readx_poll_timeout(ocelot_mem_init_status, ocelot, val, !val, + MEM_INIT_SLEEP_US, MEM_INIT_TIMEOUT_US); + if (err) + return err; - regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_ENA], 1); - regmap_field_write(ocelot->regfields[SYS_RESET_CFG_CORE_ENA], 1); + err = regmap_field_write(ocelot->regfields[SYS_RESET_CFG_MEM_ENA], 1); + if (err) + return err; - return 0; + return regmap_field_write(ocelot->regfields[SYS_RESET_CFG_CORE_ENA], 1); } /* Watermark encode |