svn commit: r285105 - head/sys/arm/allwinner
Luiz Otavio O Souza
loos at FreeBSD.org
Fri Jul 3 17:54:42 UTC 2015
Author: loos
Date: Fri Jul 3 17:54:41 2015
New Revision: 285105
URL: https://svnweb.freebsd.org/changeset/base/285105
Log:
Rename a10_emac_gpio_config() to a10_gpio_ethernet_activate() to make the
change to GMAC easier on A20 SoCs.
On A10 only the EMAC controller is available (fast ethernet), but on A20
there is also GMAC a high (or better) performant controller (gigabit
ethernet).
On A20 the both controllers uses the same pins to talk to the ethernet PHY
(MII or RGMII) and they can be selected by the GPIO pin mux.
There is work in progress to bring in GMAC support.
Modified:
head/sys/arm/allwinner/a10_gpio.c
head/sys/arm/allwinner/a10_gpio.h
head/sys/arm/allwinner/if_emac.c
Modified: head/sys/arm/allwinner/a10_gpio.c
==============================================================================
--- head/sys/arm/allwinner/a10_gpio.c Fri Jul 3 17:30:31 2015 (r285104)
+++ head/sys/arm/allwinner/a10_gpio.c Fri Jul 3 17:54:41 2015 (r285105)
@@ -524,8 +524,9 @@ static driver_t a10_gpio_driver = {
DRIVER_MODULE(a10_gpio, simplebus, a10_gpio_driver, a10_gpio_devclass, 0, 0);
int
-a10_emac_gpio_config(uint32_t pin)
+a10_gpio_ethernet_activate(uint32_t func)
{
+ int i;
struct a10_gpio_softc *sc = a10_gpio_sc;
if (sc == NULL)
@@ -533,7 +534,8 @@ a10_emac_gpio_config(uint32_t pin)
/* Configure pin mux settings for MII. */
A10_GPIO_LOCK(sc);
- a10_gpio_set_function(sc, pin, A10_GPIO_PULLDOWN);
+ for (i = 0; i <= 17; i++)
+ a10_gpio_set_function(sc, i, func);
A10_GPIO_UNLOCK(sc);
return (0);
Modified: head/sys/arm/allwinner/a10_gpio.h
==============================================================================
--- head/sys/arm/allwinner/a10_gpio.h Fri Jul 3 17:30:31 2015 (r285104)
+++ head/sys/arm/allwinner/a10_gpio.h Fri Jul 3 17:54:41 2015 (r285105)
@@ -29,6 +29,9 @@
#ifndef _A10_GPIO_H_
#define _A10_GPIO_H_
-int a10_emac_gpio_config(uint32_t pin);
+#define A10_GPIO_FUNC_MII 2
+#define A10_GPIO_FUNC_RGMII 5
+
+int a10_gpio_ethernet_activate(uint32_t);
#endif
Modified: head/sys/arm/allwinner/if_emac.c
==============================================================================
--- head/sys/arm/allwinner/if_emac.c Fri Jul 3 17:30:31 2015 (r285104)
+++ head/sys/arm/allwinner/if_emac.c Fri Jul 3 17:54:41 2015 (r285105)
@@ -142,17 +142,12 @@ static int sysctl_hw_emac_proc_limit(SYS
static void
emac_sys_setup(void)
{
- int i;
+ /* Activate EMAC clock. */
a10_clk_emac_activate();
-
- /*
- * Configure pin mux settings for MII.
- * Pins PA0 from PA17.
- */
- for (i = 0; i <= 17; i++)
- a10_emac_gpio_config(i);
- /* Map sram */
+ /* Set the pin mux to EMAC (mii). */
+ a10_gpio_ethernet_activate(A10_GPIO_FUNC_MII);
+ /* Map sram. */
a10_map_to_emac();
}
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