diff options
Diffstat (limited to 'drivers/ata/sata_highbank.c')
| -rw-r--r-- | drivers/ata/sata_highbank.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c index ba43c7217545..0849672218c9 100644 --- a/drivers/ata/sata_highbank.c +++ b/drivers/ata/sata_highbank.c @@ -84,6 +84,9 @@ static DEFINE_SPINLOCK(sgpio_lock); struct ecx_plat_data { u32 n_ports; + /* number of extra clocks that the SGPIO PIC controller expects */ + u32 pre_clocks; + u32 post_clocks; unsigned sgpio_gpio[SGPIO_PINS]; u32 sgpio_pattern; u32 port_to_sgpio[SGPIO_PORTS]; @@ -160,6 +163,9 @@ static ssize_t ecx_transmit_led_message(struct ata_port *ap, u32 state, spin_lock_irqsave(&sgpio_lock, flags); ecx_parse_sgpio(pdata, ap->port_no, state); sgpio_out = pdata->sgpio_pattern; + for (i = 0; i < pdata->pre_clocks; i++) + ecx_led_cycle_clock(pdata); + gpio_set_value(pdata->sgpio_gpio[SLOAD], 1); ecx_led_cycle_clock(pdata); gpio_set_value(pdata->sgpio_gpio[SLOAD], 0); @@ -172,6 +178,8 @@ static ssize_t ecx_transmit_led_message(struct ata_port *ap, u32 state, sgpio_out >>= 1; ecx_led_cycle_clock(pdata); } + for (i = 0; i < pdata->post_clocks; i++) + ecx_led_cycle_clock(pdata); /* save off new led state for port/slot */ emp->led_state = state; @@ -206,6 +214,11 @@ static void highbank_set_em_messages(struct device *dev, of_property_read_u32_array(np, "calxeda,led-order", pdata->port_to_sgpio, pdata->n_ports); + if (of_property_read_u32(np, "calxeda,pre-clocks", &pdata->pre_clocks)) + pdata->pre_clocks = 0; + if (of_property_read_u32(np, "calxeda,post-clocks", + &pdata->post_clocks)) + pdata->post_clocks = 0; /* store em_loc */ hpriv->em_loc = 0; |