AEL_I2C_STAT = 0xc30c,
AEL2005_GPIO_CTRL = 0xc214,
AEL2005_GPIO_STAT = 0xc215,
+
+ AEL2020_GPIO_INTR = 0xc103, /* Latch High (LH) */
+ AEL2020_GPIO_CTRL = 0xc108, /* Store Clear (SC) */
+ AEL2020_GPIO_STAT = 0xc10c, /* Read Only (RO) */
+ AEL2020_GPIO_CFG = 0xc110, /* Read Write (RW) */
+
+ AEL2020_GPIO_SDA = 0, /* IN: i2c serial data */
+ AEL2020_GPIO_MODDET = 1, /* IN: Module Detect */
+ AEL2020_GPIO_0 = 3, /* IN: unassigned */
+ AEL2020_GPIO_1 = 2, /* OUT: unassigned */
+ AEL2020_GPIO_LSTAT = AEL2020_GPIO_1, /* wired to link status LED */
};
enum { edc_none, edc_sr, edc_twinax };
/* PHY module I2C device address */
-#define MODULE_DEV_ADDR 0xa0
+enum {
+ MODULE_DEV_ADDR = 0xa0,
+ SFF_DEV_ADDR = 0xa2,
+};
+
+/* PHY transceiver type */
+enum {
+ phy_transtype_unknown = 0,
+ phy_transtype_sfp = 3,
+ phy_transtype_xfp = 6,
+};
#define AEL2005_MODDET_IRQ 4
msleep(30);
}
+/*
+ * Read an 8-bit word from a device attached to the PHY's i2c bus.
+ */
+static int ael_i2c_rd(struct cphy *phy, int dev_addr, int word_addr)
+{
+ int i, err;
+ unsigned int stat, data;
+
+ err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL_I2C_CTRL,
+ (dev_addr << 8) | (1 << 8) | word_addr);
+ if (err)
+ return err;
+
+ for (i = 0; i < 200; i++) {
+ msleep(1);
+ err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL_I2C_STAT, &stat);
+ if (err)
+ return err;
+ if ((stat & 3) == 1) {
+ err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL_I2C_DATA,
+ &data);
+ if (err)
+ return err;
+ return data >> 8;
+ }
+ }
+ CH_WARN(phy->adapter, "PHY %u i2c read of dev.addr %#x.%#x timed out\n",
+ phy->mdio.prtad, dev_addr, word_addr);
+ return -ETIMEDOUT;
+}
+
static int ael1002_power_down(struct cphy *phy, int enable)
{
int err;
return 0;
}
+/*
+ * Decode our module type.
+ */
+static int ael2xxx_get_module_type(struct cphy *phy, int delay_ms)
+{
+ int v;
+
+ if (delay_ms)
+ msleep(delay_ms);
+
+ /* see SFF-8472 for below */
+ v = ael_i2c_rd(phy, MODULE_DEV_ADDR, 3);
+ if (v < 0)
+ return v;
+
+ if (v == 0x10)
+ return phy_modtype_sr;
+ if (v == 0x20)
+ return phy_modtype_lr;
+ if (v == 0x40)
+ return phy_modtype_lrm;
+
+ v = ael_i2c_rd(phy, MODULE_DEV_ADDR, 6);
+ if (v < 0)
+ return v;
+ if (v != 4)
+ goto unknown;
+
+ v = ael_i2c_rd(phy, MODULE_DEV_ADDR, 10);
+ if (v < 0)
+ return v;
+
+ if (v & 0x80) {
+ v = ael_i2c_rd(phy, MODULE_DEV_ADDR, 0x12);
+ if (v < 0)
+ return v;
+ return v > 10 ? phy_modtype_twinax_long : phy_modtype_twinax;
+ }
+unknown:
+ return phy_modtype_unknown;
+}
+
+/*
+ * Code to support the Aeluros/NetLogic 2005 10Gb PHY.
+ */
static int ael2005_setup_sr_edc(struct cphy *phy)
{
static struct reg_val regs[] = {
return err;
}
-static int ael2005_i2c_rd(struct cphy *phy, int dev_addr, int word_addr)
-{
- int i, err;
- unsigned int stat, data;
-
- err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL_I2C_CTRL,
- (dev_addr << 8) | (1 << 8) | word_addr);
- if (err)
- return err;
-
- for (i = 0; i < 5; i++) {
- msleep(1);
- err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL_I2C_STAT, &stat);
- if (err)
- return err;
- if ((stat & 3) == 1) {
- err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL_I2C_DATA,
- &data);
- if (err)
- return err;
- return data >> 8;
- }
- }
- CH_WARN(phy->adapter, "PHY %u I2C read of addr %u timed out\n",
- phy->mdio.prtad, word_addr);
- return -ETIMEDOUT;
-}
-
-static int get_module_type(struct cphy *phy, int delay_ms)
+static int ael2005_get_module_type(struct cphy *phy, int delay_ms)
{
int v;
unsigned int stat;
if (stat & (1 << 8)) /* module absent */
return phy_modtype_none;
- if (delay_ms)
- msleep(delay_ms);
-
- /* see SFF-8472 for below */
- v = ael2005_i2c_rd(phy, MODULE_DEV_ADDR, 3);
- if (v < 0)
- return v;
-
- if (v == 0x10)
- return phy_modtype_sr;
- if (v == 0x20)
- return phy_modtype_lr;
- if (v == 0x40)
- return phy_modtype_lrm;
-
- v = ael2005_i2c_rd(phy, MODULE_DEV_ADDR, 6);
- if (v < 0)
- return v;
- if (v != 4)
- goto unknown;
-
- v = ael2005_i2c_rd(phy, MODULE_DEV_ADDR, 10);
- if (v < 0)
- return v;
-
- if (v & 0x80) {
- v = ael2005_i2c_rd(phy, MODULE_DEV_ADDR, 0x12);
- if (v < 0)
- return v;
- return v > 10 ? phy_modtype_twinax_long : phy_modtype_twinax;
- }
-unknown:
- return phy_modtype_unknown;
+ return ael2xxx_get_module_type(phy, delay_ms);
}
static int ael2005_intr_enable(struct cphy *phy)
msleep(50);
- err = get_module_type(phy, 0);
+ err = ael2005_get_module_type(phy, 0);
if (err < 0)
return err;
phy->modtype = err;
return ret;
/* modules have max 300 ms init time after hot plug */
- ret = get_module_type(phy, 300);
+ ret = ael2005_get_module_type(phy, 300);
if (ret < 0)
return ret;
1 << 5);
}
+/*
+ * Setup EDC and other parameters for operation with an optical module.
+ */
+static int ael2020_setup_sr_edc(struct cphy *phy)
+{
+ static struct reg_val regs[] = {
+ /* set CDR offset to 10 */
+ { MDIO_MMD_PMAPMD, 0xcc01, 0xffff, 0x488a },
+
+ /* adjust 10G RX bias current */
+ { MDIO_MMD_PMAPMD, 0xcb1b, 0xffff, 0x0200 },
+ { MDIO_MMD_PMAPMD, 0xcb1c, 0xffff, 0x00f0 },
+ { MDIO_MMD_PMAPMD, 0xcc06, 0xffff, 0x00e0 },
+
+ /* end */
+ { 0, 0, 0, 0 }
+ };
+ int err;
+
+ err = set_phy_regs(phy, regs);
+ msleep(50);
+ if (err)
+ return err;
+
+ phy->priv = edc_sr;
+ return 0;
+}
+
+/*
+ * Setup EDC and other parameters for operation with an TWINAX module.
+ */
+static int ael2020_setup_twinax_edc(struct cphy *phy, int modtype)
+{
+ /* set uC to 40MHz */
+ static struct reg_val uCclock40MHz[] = {
+ { MDIO_MMD_PMAPMD, 0xff28, 0xffff, 0x4001 },
+ { MDIO_MMD_PMAPMD, 0xff2a, 0xffff, 0x0002 },
+ { 0, 0, 0, 0 }
+ };
+
+ /* activate uC clock */
+ static struct reg_val uCclockActivate[] = {
+ { MDIO_MMD_PMAPMD, 0xd000, 0xffff, 0x5200 },
+ { 0, 0, 0, 0 }
+ };
+
+ /* set PC to start of SRAM and activate uC */
+ static struct reg_val uCactivate[] = {
+ { MDIO_MMD_PMAPMD, 0xd080, 0xffff, 0x0100 },
+ { MDIO_MMD_PMAPMD, 0xd092, 0xffff, 0x0000 },
+ { 0, 0, 0, 0 }
+ };
+
+ /* TWINAX EDC firmware */
+ static u16 twinax_edc[] = {
+ 0xd800, 0x4009,
+ 0xd801, 0x2fff,
+ 0xd802, 0x300f,
+ 0xd803, 0x40aa,
+ 0xd804, 0x401c,
+ 0xd805, 0x401e,
+ 0xd806, 0x2ff4,
+ 0xd807, 0x3dc4,
+ 0xd808, 0x2035,
+ 0xd809, 0x3035,
+ 0xd80a, 0x6524,
+ 0xd80b, 0x2cb2,
+ 0xd80c, 0x3012,
+ 0xd80d, 0x1002,
+ 0xd80e, 0x26e2,
+ 0xd80f, 0x3022,
+ 0xd810, 0x1002,
+ 0xd811, 0x27d2,
+ 0xd812, 0x3022,
+ 0xd813, 0x1002,
+ 0xd814, 0x2822,
+ 0xd815, 0x3012,
+ 0xd816, 0x1002,
+ 0xd817, 0x2492,
+ 0xd818, 0x3022,
+ 0xd819, 0x1002,
+ 0xd81a, 0x2772,
+ 0xd81b, 0x3012,
+ 0xd81c, 0x1002,
+ 0xd81d, 0x23d2,
+ 0xd81e, 0x3022,
+ 0xd81f, 0x1002,
+ 0xd820, 0x22cd,
+ 0xd821, 0x301d,
+ 0xd822, 0x27f2,
+ 0xd823, 0x3022,
+ 0xd824, 0x1002,
+ 0xd825, 0x5553,
+ 0xd826, 0x0307,
+ 0xd827, 0x2522,
+ 0xd828, 0x3022,
+ 0xd829, 0x1002,
+ 0xd82a, 0x2142,
+ 0xd82b, 0x3012,
+ 0xd82c, 0x1002,
+ 0xd82d, 0x4016,
+ 0xd82e, 0x5e63,
+ 0xd82f, 0x0344,
+ 0xd830, 0x2142,
+ 0xd831, 0x3012,
+ 0xd832, 0x1002,
+ 0xd833, 0x400e,
+ 0xd834, 0x2522,
+ 0xd835, 0x3022,
+ 0xd836, 0x1002,
+ 0xd837, 0x2b52,
+ 0xd838, 0x3012,
+ 0xd839, 0x1002,
+ 0xd83a, 0x2742,
+ 0xd83b, 0x3022,
+ 0xd83c, 0x1002,
+ 0xd83d, 0x25e2,
+ 0xd83e, 0x3022,
+ 0xd83f, 0x1002,
+ 0xd840, 0x2fa4,
+ 0xd841, 0x3dc4,
+ 0xd842, 0x6624,
+ 0xd843, 0x414b,
+ 0xd844, 0x56b3,
+ 0xd845, 0x03c6,
+ 0xd846, 0x866b,
+ 0xd847, 0x400c,
+ 0xd848, 0x2712,
+ 0xd849, 0x3012,
+ 0xd84a, 0x1002,
+ 0xd84b, 0x2c4b,
+ 0xd84c, 0x309b,
+ 0xd84d, 0x56b3,
+ 0xd84e, 0x03c3,
+ 0xd84f, 0x866b,
+ 0xd850, 0x400c,
+ 0xd851, 0x2272,
+ 0xd852, 0x3022,
+ 0xd853, 0x1002,
+ 0xd854, 0x2742,
+ 0xd855, 0x3022,
+ 0xd856, 0x1002,
+ 0xd857, 0x25e2,
+ 0xd858, 0x3022,
+ 0xd859, 0x1002,
+ 0xd85a, 0x2fb4,
+ 0xd85b, 0x3dc4,
+ 0xd85c, 0x6624,
+ 0xd85d, 0x56b3,
+ 0xd85e, 0x03c3,
+ 0xd85f, 0x866b,
+ 0xd860, 0x401c,
+ 0xd861, 0x2c45,
+ 0xd862, 0x3095,
+ 0xd863, 0x5b53,
+ 0xd864, 0x2372,
+ 0xd865, 0x3012,
+ 0xd866, 0x13c2,
+ 0xd867, 0x5cc3,
+ 0xd868, 0x2712,
+ 0xd869, 0x3012,
+ 0xd86a, 0x1312,
+ 0xd86b, 0x2b52,
+ 0xd86c, 0x3012,
+ 0xd86d, 0x1002,
+ 0xd86e, 0x2742,
+ 0xd86f, 0x3022,
+ 0xd870, 0x1002,
+ 0xd871, 0x2582,
+ 0xd872, 0x3022,
+ 0xd873, 0x1002,
+ 0xd874, 0x2142,
+ 0xd875, 0x3012,
+ 0xd876, 0x1002,
+ 0xd877, 0x628f,
+ 0xd878, 0x2985,
+ 0xd879, 0x33a5,
+ 0xd87a, 0x25e2,
+ 0xd87b, 0x3022,
+ 0xd87c, 0x1002,
+ 0xd87d, 0x5653,
+ 0xd87e, 0x03d2,
+ 0xd87f, 0x401e,
+ 0xd880, 0x6f72,
+ 0xd881, 0x1002,
+ 0xd882, 0x628f,
+ 0xd883, 0x2304,
+ 0xd884, 0x3c84,
+ 0xd885, 0x6436,
+ 0xd886, 0xdff4,
+ 0xd887, 0x6436,
+ 0xd888, 0x2ff5,
+ 0xd889, 0x3005,
+ 0xd88a, 0x8656,
+ 0xd88b, 0xdfba,
+ 0xd88c, 0x56a3,
+ 0xd88d, 0xd05a,
+ 0xd88e, 0x2972,
+ 0xd88f, 0x3012,
+ 0xd890, 0x1392,
+ 0xd891, 0xd05a,
+ 0xd892, 0x56a3,
+ 0xd893, 0xdfba,
+ 0xd894, 0x0383,
+ 0xd895, 0x6f72,
+ 0xd896, 0x1002,
+ 0xd897, 0x2b45,
+ 0xd898, 0x3005,
+ 0xd899, 0x4178,
+ 0xd89a, 0x5653,
+ 0xd89b, 0x0384,
+ 0xd89c, 0x2a62,
+ 0xd89d, 0x3012,
+ 0xd89e, 0x1002,
+ 0xd89f, 0x2f05,
+ 0xd8a0, 0x3005,
+ 0xd8a1, 0x41c8,
+ 0xd8a2, 0x5653,
+ 0xd8a3, 0x0382,
+ 0xd8a4, 0x0002,
+ 0xd8a5, 0x4218,
+ 0xd8a6, 0x2474,
+ 0xd8a7, 0x3c84,
+ 0xd8a8, 0x6437,
+ 0xd8a9, 0xdff4,
+ 0xd8aa, 0x6437,
+ 0xd8ab, 0x2ff5,
+ 0xd8ac, 0x3c05,
+ 0xd8ad, 0x8757,
+ 0xd8ae, 0xb888,
+ 0xd8af, 0x9787,
+ 0xd8b0, 0xdff4,
+ 0xd8b1, 0x6724,
+ 0xd8b2, 0x866a,
+ 0xd8b3, 0x6f72,
+ 0xd8b4, 0x1002,
+ 0xd8b5, 0x2641,
+ 0xd8b6, 0x3021,
+ 0xd8b7, 0x1001,
+ 0xd8b8, 0xc620,
+ 0xd8b9, 0x0000,
+ 0xd8ba, 0xc621,
+ 0xd8bb, 0x0000,
+ 0xd8bc, 0xc622,
+ 0xd8bd, 0x00ce,
+ 0xd8be, 0xc623,
+ 0xd8bf, 0x007f,
+ 0xd8c0, 0xc624,
+ 0xd8c1, 0x0032,
+ 0xd8c2, 0xc625,
+ 0xd8c3, 0x0000,
+ 0xd8c4, 0xc627,
+ 0xd8c5, 0x0000,
+ 0xd8c6, 0xc628,
+ 0xd8c7, 0x0000,
+ 0xd8c8, 0xc62c,
+ 0xd8c9, 0x0000,
+ 0xd8ca, 0x0000,
+ 0xd8cb, 0x2641,
+ 0xd8cc, 0x3021,
+ 0xd8cd, 0x1001,
+ 0xd8ce, 0xc502,
+ 0xd8cf, 0x53ac,
+ 0xd8d0, 0xc503,
+ 0xd8d1, 0x2cd3,
+ 0xd8d2, 0xc600,
+ 0xd8d3, 0x2a6e,
+ 0xd8d4, 0xc601,
+ 0xd8d5, 0x2a2c,
+ 0xd8d6, 0xc605,
+ 0xd8d7, 0x5557,
+ 0xd8d8, 0xc60c,
+ 0xd8d9, 0x5400,
+ 0xd8da, 0xc710,
+ 0xd8db, 0x0700,
+ 0xd8dc, 0xc711,
+ 0xd8dd, 0x0f06,
+ 0xd8de, 0xc718,
+ 0xd8df, 0x0700,
+ 0xd8e0, 0xc719,
+ 0xd8e1, 0x0f06,
+ 0xd8e2, 0xc720,
+ 0xd8e3, 0x4700,
+ 0xd8e4, 0xc721,
+ 0xd8e5, 0x0f06,
+ 0xd8e6, 0xc728,
+ 0xd8e7, 0x0700,
+ 0xd8e8, 0xc729,
+ 0xd8e9, 0x1207,
+ 0xd8ea, 0xc801,
+ 0xd8eb, 0x7f50,
+ 0xd8ec, 0xc802,
+ 0xd8ed, 0x7760,
+ 0xd8ee, 0xc803,
+ 0xd8ef, 0x7fce,
+ 0xd8f0, 0xc804,
+ 0xd8f1, 0x520e,
+ 0xd8f2, 0xc805,
+ 0xd8f3, 0x5c11,
+ 0xd8f4, 0xc806,
+ 0xd8f5, 0x3c51,
+ 0xd8f6, 0xc807,
+ 0xd8f7, 0x4061,
+ 0xd8f8, 0xc808,
+ 0xd8f9, 0x49c1,
+ 0xd8fa, 0xc809,
+ 0xd8fb, 0x3840,
+ 0xd8fc, 0xc80a,
+ 0xd8fd, 0x0000,
+ 0xd8fe, 0xc821,
+ 0xd8ff, 0x0002,
+ 0xd900, 0xc822,
+ 0xd901, 0x0046,
+ 0xd902, 0xc844,
+ 0xd903, 0x182f,
+ 0xd904, 0xc013,
+ 0xd905, 0xf341,
+ 0xd906, 0xc084,
+ 0xd907, 0x0030,
+ 0xd908, 0xc904,
+ 0xd909, 0x1401,
+ 0xd90a, 0xcb0c,
+ 0xd90b, 0x0004,
+ 0xd90c, 0xcb0e,
+ 0xd90d, 0xa00a,
+ 0xd90e, 0xcb0f,
+ 0xd90f, 0xc0c0,
+ 0xd910, 0xcb10,
+ 0xd911, 0xc0c0,
+ 0xd912, 0xcb11,
+ 0xd913, 0x00a0,
+ 0xd914, 0xcb12,
+ 0xd915, 0x0007,
+ 0xd916, 0xc241,
+ 0xd917, 0xa000,
+ 0xd918, 0xc243,
+ 0xd919, 0x7fe0,
+ 0xd91a, 0xc604,
+ 0xd91b, 0x000e,
+ 0xd91c, 0xc609,
+ 0xd91d, 0x00f5,
+ 0xd91e, 0xc611,
+ 0xd91f, 0x000e,
+ 0xd920, 0xc660,
+ 0xd921, 0x9600,
+ 0xd922, 0xc687,
+ 0xd923, 0x0004,
+ 0xd924, 0xc60a,
+ 0xd925, 0x04f5,
+ 0xd926, 0x0000,
+ 0xd927, 0x2641,
+ 0xd928, 0x3021,
+ 0xd929, 0x1001,
+ 0xd92a, 0xc620,
+ 0xd92b, 0x14e5,
+ 0xd92c, 0xc621,
+ 0xd92d, 0xc53d,
+ 0xd92e, 0xc622,
+ 0xd92f, 0x3cbe,
+ 0xd930, 0xc623,
+ 0xd931, 0x4452,
+ 0xd932, 0xc624,
+ 0xd933, 0xc5c5,
+ 0xd934, 0xc625,
+ 0xd935, 0xe01e,
+ 0xd936, 0xc627,
+ 0xd937, 0x0000,
+ 0xd938, 0xc628,
+ 0xd939, 0x0000,
+ 0xd93a, 0xc62c,
+ 0xd93b, 0x0000,
+ 0xd93c, 0x0000,
+ 0xd93d, 0x2b84,
+ 0xd93e, 0x3c74,
+ 0xd93f, 0x6435,
+ 0xd940, 0xdff4,
+ 0xd941, 0x6435,
+ 0xd942, 0x2806,
+ 0xd943, 0x3006,
+ 0xd944, 0x8565,
+ 0xd945, 0x2b24,
+ 0xd946, 0x3c24,
+ 0xd947, 0x6436,
+ 0xd948, 0x1002,
+ 0xd949, 0x2b24,
+ 0xd94a, 0x3c24,
+ 0xd94b, 0x6436,
+ 0xd94c, 0x4045,
+ 0xd94d, 0x8656,
+ 0xd94e, 0x5663,
+ 0xd94f, 0x0302,
+ 0xd950, 0x401e,
+ 0xd951, 0x1002,
+ 0xd952, 0x2807,
+ 0xd953, 0x31a7,
+ 0xd954, 0x20c4,
+ 0xd955, 0x3c24,
+ 0xd956, 0x6724,
+ 0xd957, 0x1002,
+ 0xd958, 0x2807,
+ 0xd959, 0x3187,
+ 0xd95a, 0x20c4,
+ 0xd95b, 0x3c24,
+ 0xd95c, 0x6724,
+ 0xd95d, 0x1002,
+ 0xd95e, 0x24f4,
+ 0xd95f, 0x3c64,
+ 0xd960, 0x6436,
+ 0xd961, 0xdff4,
+ 0xd962, 0x6436,
+ 0xd963, 0x1002,
+ 0xd964, 0x2006,
+ 0xd965, 0x3d76,
+ 0xd966, 0xc161,
+ 0xd967, 0x6134,
+ 0xd968, 0x6135,
+ 0xd969, 0x5443,
+ 0xd96a, 0x0303,
+ 0xd96b, 0x6524,
+ 0xd96c, 0x00fb,
+ 0xd96d, 0x1002,
+ 0xd96e, 0x20d4,
+ 0xd96f, 0x3c24,
+ 0xd970, 0x2025,
+ 0xd971, 0x3005,
+ 0xd972, 0x6524,
+ 0xd973, 0x1002,
+ 0xd974, 0xd019,
+ 0xd975, 0x2104,
+ 0xd976, 0x3c24,
+ 0xd977, 0x2105,
+ 0xd978, 0x3805,
+ 0xd979, 0x6524,
+ 0xd97a, 0xdff4,
+ 0xd97b, 0x4005,
+ 0xd97c, 0x6524,
+ 0xd97d, 0x2e8d,
+ 0xd97e, 0x303d,
+ 0xd97f, 0x2408,
+ 0xd980, 0x35d8,
+ 0xd981, 0x5dd3,
+ 0xd982, 0x0307,
+ 0xd983, 0x8887,
+ 0xd984, 0x63a7,
+ 0xd985, 0x8887,
+ 0xd986, 0x63a7,
+ 0xd987, 0xdffd,
+ 0xd988, 0x00f9,
+ 0xd989, 0x1002,
+ 0xd98a, 0x0000,
+ };
+ int i, err;
+
+ /* set uC clock and activate it */
+ err = set_phy_regs(phy, uCclock40MHz);
+ msleep(500);
+ if (err)
+ return err;
+ err = set_phy_regs(phy, uCclockActivate);
+ msleep(500);
+ if (err)
+ return err;
+
+ /* write TWINAX EDC firmware into PHY */
+ for (i = 0; i < ARRAY_SIZE(twinax_edc) && !err; i += 2)
+ err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, twinax_edc[i],
+ twinax_edc[i + 1]);
+ /* activate uC */
+ err = set_phy_regs(phy, uCactivate);
+ if (!err)
+ phy->priv = edc_twinax;
+ return err;
+}
+
+/*
+ * Return Module Type.
+ */
+static int ael2020_get_module_type(struct cphy *phy, int delay_ms)
+{
+ int v;
+ unsigned int stat;
+
+ v = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL2020_GPIO_STAT, &stat);
+ if (v)
+ return v;
+
+ if (stat & (0x1 << (AEL2020_GPIO_MODDET*4))) {
+ /* module absent */
+ return phy_modtype_none;
+ }
+
+ return ael2xxx_get_module_type(phy, delay_ms);
+}
+
+/*
+ * Enable PHY interrupts. We enable "Module Detection" interrupts (on any
+ * state transition) and then generic Link Alarm Status Interrupt (LASI).
+ */
+static int ael2020_intr_enable(struct cphy *phy)
+{
+ int err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL2020_GPIO_CTRL,
+ 0x2 << (AEL2020_GPIO_MODDET*4));
+ return err ? err : t3_phy_lasi_intr_enable(phy);
+}
+
+/*
+ * Disable PHY interrupts. The mirror of the above ...
+ */
+static int ael2020_intr_disable(struct cphy *phy)
+{
+ int err = t3_mdio_write(phy, MDIO_MMD_PMAPMD, AEL2020_GPIO_CTRL,
+ 0x1 << (AEL2020_GPIO_MODDET*4));
+ return err ? err : t3_phy_lasi_intr_disable(phy);
+}
+
+/*
+ * Clear PHY interrupt state.
+ */
+static int ael2020_intr_clear(struct cphy *phy)
+{
+ /*
+ * The GPIO Interrupt register on the AEL2020 is a "Latching High"
+ * (LH) register which is cleared to the current state when it's read.
+ * Thus, we simply read the register and discard the result.
+ */
+ unsigned int stat;
+ int err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL2020_GPIO_INTR, &stat);
+ return err ? err : t3_phy_lasi_intr_clear(phy);
+}
+
+/*
+ * Reset the PHY and put it into a canonical operating state.
+ */
+static int ael2020_reset(struct cphy *phy, int wait)
+{
+ static struct reg_val regs0[] = {
+ /* Erratum #2: CDRLOL asserted, causing PMA link down status */
+ { MDIO_MMD_PMAPMD, 0xc003, 0xffff, 0x3101 },
+
+ /* force XAUI to send LF when RX_LOS is asserted */
+ { MDIO_MMD_PMAPMD, 0xcd40, 0xffff, 0x0001 },
+
+ /* RX_LOS pin is active high */
+ { MDIO_MMD_PMAPMD, AEL_OPT_SETTINGS,
+ 0x0020, 0x0020 },
+
+ /* output Module's Loss Of Signal (LOS) to LED */
+ { MDIO_MMD_PMAPMD, AEL2020_GPIO_CFG+AEL2020_GPIO_LSTAT,
+ 0xffff, 0x0004 },
+ { MDIO_MMD_PMAPMD, AEL2020_GPIO_CTRL,
+ 0xffff, 0x8 << (AEL2020_GPIO_LSTAT*4) },
+
+ /* end */
+ { 0, 0, 0, 0 }
+ };
+ int err;
+ unsigned int lasi_ctrl;
+
+ /* grab current interrupt state */
+ err = t3_mdio_read(phy, MDIO_MMD_PMAPMD, MDIO_PMA_LASI_CTRL,
+ &lasi_ctrl);
+ if (err)
+ return err;
+
+ err = t3_phy_reset(phy, MDIO_MMD_PMAPMD, 125);
+ if (err)
+ return err;
+ msleep(100);
+
+ /* basic initialization for all module types */
+ phy->priv = edc_none;
+ err = set_phy_regs(phy, regs0);
+ if (err)
+ return err;
+
+ /* determine module type and perform appropriate initialization */
+ err = ael2020_get_module_type(phy, 0);
+ if (err < 0)
+ return err;
+ phy->modtype = (u8)err;
+ if (err == phy_modtype_twinax || err == phy_modtype_twinax_long)
+ err = ael2020_setup_twinax_edc(phy, err);
+ else
+ err = ael2020_setup_sr_edc(phy);
+ if (err)
+ return err;
+
+ /* reset wipes out interrupts, reenable them if they were on */
+ if (lasi_ctrl & 1)
+ err = ael2005_intr_enable(phy);
+ return err;
+}
+
+/*
+ * Handle a PHY interrupt.
+ */
+static int ael2020_intr_handler(struct cphy *phy)
+{
+ unsigned int stat;
+ int ret, edc_needed, cause = 0;
+
+ ret = t3_mdio_read(phy, MDIO_MMD_PMAPMD, AEL2020_GPIO_INTR, &stat);
+ if (ret)
+ return ret;
+
+ if (stat & (0x1 << AEL2020_GPIO_MODDET)) {
+ /* modules have max 300 ms init time after hot plug */
+ ret = ael2020_get_module_type(phy, 300);
+ if (ret < 0)
+ return ret;
+
+ phy->modtype = (u8)ret;
+ if (ret == phy_modtype_none)
+ edc_needed = phy->priv; /* on unplug retain EDC */
+ else if (ret == phy_modtype_twinax ||
+ ret == phy_modtype_twinax_long)
+ edc_needed = edc_twinax;
+ else
+ edc_needed = edc_sr;
+
+ if (edc_needed != phy->priv) {
+ ret = ael2020_reset(phy, 0);
+ return ret ? ret : cphy_cause_module_change;
+ }
+ cause = cphy_cause_module_change;
+ }
+
+ ret = t3_phy_lasi_intr_handler(phy);
+ if (ret < 0)
+ return ret;
+
+ ret |= cause;
+ return ret ? ret : cphy_cause_link_change;
+}
+
+static struct cphy_ops ael2020_ops = {
+ .reset = ael2020_reset,
+ .intr_enable = ael2020_intr_enable,
+ .intr_disable = ael2020_intr_disable,
+ .intr_clear = ael2020_intr_clear,
+ .intr_handler = ael2020_intr_handler,
+ .get_link_status = get_link_status_r,
+ .power_down = ael1002_power_down,
+ .mmds = MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS | MDIO_DEVS_PHYXS,
+};
+
+int t3_ael2020_phy_prep(struct cphy *phy, struct adapter *adapter, int phy_addr,
+ const struct mdio_ops *mdio_ops)
+{
+ cphy_init(phy, adapter, phy_addr, &ael2020_ops, mdio_ops,
+ SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_FIBRE |
+ SUPPORTED_IRQ, "10GBASE-R");
+ msleep(125);
+ return 0;
+}
+
/*
* Get link status for a 10GBASE-X device.
*/
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff