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at91sam9260/9263: add back up for the rst(reset controller).

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On the boards at91sam9260ek, at91sam9263ek and afed9260, the rstc register was
set to 0 after being set to 500 ms for the PHY reset.
Do backup the old reset length and restore it after the MACB initialisation.

Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com>
Signed-off-by: Stelian Pop <stelian@popies.net>
This commit is contained in:
Sedji Gaouaou 2009-06-24 08:32:09 +02:00 • committed by Jean-Christophe PLAGNIOL-VILLARD
parent 5710de4580
commit 0aafde1dc7
3 changed files with 15 additions and 3 deletions
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6
board/afeb9260/afeb9260.c
View file

@ -81,6 +81,8 @@ static void afeb9260_nand_hw_init(void)
#ifdef CONFIG_MACB
static void afeb9260_macb_hw_init(void)
{
unsigned long rstc;
/* Enable clock */
at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC);
@ -103,6 +105,8 @@ static void afeb9260_macb_hw_init(void)
pin_to_mask(AT91_PIN_PA28),
pin_to_controller(AT91_PIN_PA0) + PIO_PUDR);
rstc = at91_sys_read(AT91_RSTC_MR) & AT91_RSTC_ERSTL;
/* Need to reset PHY -> 500ms reset */
at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
AT91_RSTC_ERSTL | (0x0D << 8) |
@ -115,7 +119,7 @@ static void afeb9260_macb_hw_init(void)
/* Restore NRST value */
at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
AT91_RSTC_ERSTL | (0x0 << 8) |
(rstc) |
AT91_RSTC_URSTEN);
/* Re-enable pull-up */

6
board/atmel/at91sam9260ek/at91sam9260ek.c
View file

@ -86,6 +86,8 @@ static void at91sam9260ek_nand_hw_init(void)
#ifdef CONFIG_MACB
static void at91sam9260ek_macb_hw_init(void)
{
unsigned long rstc;
/* Enable clock */
at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC);
@ -108,6 +110,8 @@ static void at91sam9260ek_macb_hw_init(void)
pin_to_mask(AT91_PIN_PA28),
pin_to_controller(AT91_PIN_PA0) + PIO_PUDR);
rstc = at91_sys_read(AT91_RSTC_MR) & AT91_RSTC_ERSTL;
/* Need to reset PHY -> 500ms reset */
at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
(AT91_RSTC_ERSTL & (0x0D << 8)) |
@ -120,7 +124,7 @@ static void at91sam9260ek_macb_hw_init(void)
/* Restore NRST value */
at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
(AT91_RSTC_ERSTL & (0x0 << 8)) |
(rstc) |
AT91_RSTC_URSTEN);
/* Re-enable pull-up */

6
board/atmel/at91sam9263ek/at91sam9263ek.c
View file

@ -91,6 +91,8 @@ static void at91sam9263ek_nand_hw_init(void)
#ifdef CONFIG_MACB
static void at91sam9263ek_macb_hw_init(void)
{
unsigned long rstc;
/* Enable clock */
at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_EMAC);
@ -108,6 +110,8 @@ static void at91sam9263ek_macb_hw_init(void)
pin_to_mask(AT91_PIN_PE26),
pin_to_controller(AT91_PIN_PE0) + PIO_PUDR);
rstc = at91_sys_read(AT91_RSTC_MR) & AT91_RSTC_ERSTL;
/* Need to reset PHY -> 500ms reset */
at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
(AT91_RSTC_ERSTL & (0x0D << 8)) |
@ -120,7 +124,7 @@ static void at91sam9263ek_macb_hw_init(void)
/* Restore NRST value */
at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
(AT91_RSTC_ERSTL & (0x0 << 8)) |
(rstc) |
AT91_RSTC_URSTEN);
/* Re-enable pull-up */