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authorReinhard Meyer <u-boot@emk-elektronik.de>2010-11-03 15:47:20 +0100
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2011-05-18 07:56:51 +0200
commit372f2783a7b111f567ca541194bc7a75a3d5d64a (patch)
treefba8b955db18ef99b22427e8a27a3647907c444c /drivers/gpio
parent9f3fe90f094d4ad6309b5222196d0f8c783784b0 (diff)
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AT91: fix related at91 driver files
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/at91_gpio.c52
1 files changed, 31 insertions, 21 deletions
diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c
index c0a97bc..1631687 100644
--- a/drivers/gpio/at91_gpio.c
+++ b/drivers/gpio/at91_gpio.c
@@ -24,6 +24,16 @@
* MA 02111-1307 USA
*/
+/*
+ * WARNING:
+ *
+ * As the code is right now, it expects all PIO ports A,B,C,...
+ * to be evenly spaced in the memory map:
+ * ATMEL_BASE_PIOA + port * sizeof at91pio_t
+ * This might not necessaryly be true in future Atmel SoCs.
+ * This code should be fixed to use a pointer array to the ports.
+ */
+
#include <config.h>
#include <common.h>
#include <asm/sizes.h>
@@ -33,10 +43,10 @@
int at91_set_pio_pullup(unsigned port, unsigned pin, int use_pullup)
{
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
if (use_pullup)
writel(1 << pin, &pio->port[port].puer);
@@ -52,10 +62,10 @@ int at91_set_pio_pullup(unsigned port, unsigned pin, int use_pullup)
*/
int at91_set_pio_periph(unsigned port, unsigned pin, int use_pullup)
{
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
writel(mask, &pio->port[port].idr);
at91_set_pio_pullup(port, pin, use_pullup);
@@ -69,10 +79,10 @@ int at91_set_pio_periph(unsigned port, unsigned pin, int use_pullup)
*/
int at91_set_a_periph(unsigned port, unsigned pin, int use_pullup)
{
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
writel(mask, &pio->port[port].idr);
at91_set_pio_pullup(port, pin, use_pullup);
@@ -87,10 +97,10 @@ int at91_set_a_periph(unsigned port, unsigned pin, int use_pullup)
*/
int at91_set_b_periph(unsigned port, unsigned pin, int use_pullup)
{
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
writel(mask, &pio->port[port].idr);
at91_set_pio_pullup(port, pin, use_pullup);
@@ -106,10 +116,10 @@ int at91_set_b_periph(unsigned port, unsigned pin, int use_pullup)
*/
int at91_set_pio_input(unsigned port, u32 pin, int use_pullup)
{
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
writel(mask, &pio->port[port].idr);
at91_set_pio_pullup(port, pin, use_pullup);
@@ -125,10 +135,10 @@ int at91_set_pio_input(unsigned port, u32 pin, int use_pullup)
*/
int at91_set_pio_output(unsigned port, u32 pin, int value)
{
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
writel(mask, &pio->port[port].idr);
writel(mask, &pio->port[port].pudr);
@@ -147,10 +157,10 @@ int at91_set_pio_output(unsigned port, u32 pin, int value)
*/
int at91_set_pio_deglitch(unsigned port, unsigned pin, int is_on)
{
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
if (is_on)
writel(mask, &pio->port[port].ifer);
@@ -166,10 +176,10 @@ int at91_set_pio_deglitch(unsigned port, unsigned pin, int is_on)
*/
int at91_set_pio_multi_drive(unsigned port, unsigned pin, int is_on)
{
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
if (is_on)
writel(mask, &pio->port[port].mder);
@@ -184,10 +194,10 @@ int at91_set_pio_multi_drive(unsigned port, unsigned pin, int is_on)
*/
int at91_set_pio_value(unsigned port, unsigned pin, int value)
{
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
if (value)
writel(mask, &pio->port[port].sodr);
@@ -202,11 +212,11 @@ int at91_set_pio_value(unsigned port, unsigned pin, int value)
*/
int at91_get_pio_value(unsigned port, unsigned pin)
{
- u32 pdsr = 0;
- at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+ u32 pdsr = 0;
+ at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIOA;
u32 mask;
- if ((port < AT91_PIO_PORTS) && (pin < 32)) {
+ if ((port < ATMEL_PIO_PORTS) && (pin < 32)) {
mask = 1 << pin;
pdsr = readl(&pio->port[port].pdsr) & mask;
}