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Diffstat (limited to 'arch/arm/mach-at91/at91sam9g45_devices.c')
-rw-r--r--arch/arm/mach-at91/at91sam9g45_devices.c144
1 files changed, 105 insertions, 39 deletions
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 6b008ae..933fc9a 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -19,9 +19,12 @@
#include <linux/i2c-gpio.h>
#include <linux/atmel-mci.h>
+#include <linux/platform_data/at91_adc.h>
+
#include <linux/fb.h>
#include <video/atmel_lcdc.h>
+#include <mach/at91_adc.h>
#include <mach/board.h>
#include <mach/at91sam9g45.h>
#include <mach/at91sam9g45_matrix.h>
@@ -69,15 +72,7 @@ static struct platform_device at_hdmac_device = {
void __init at91_add_device_hdmac(void)
{
-#if defined(CONFIG_OF)
- struct device_node *of_node =
- of_find_node_by_name(NULL, "dma-controller");
-
- if (of_node)
- of_node_put(of_node);
- else
-#endif
- platform_device_register(&at_hdmac_device);
+ platform_device_register(&at_hdmac_device);
}
#else
void __init at91_add_device_hdmac(void) {}
@@ -441,7 +436,6 @@ void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
atslave->dma_dev = &at_hdmac_device.dev;
atslave->cfg = ATC_FIFOCFG_HALFFIFO
| ATC_SRC_H2SEL_HW | ATC_DST_H2SEL_HW;
- atslave->ctrla = ATC_SCSIZE_16 | ATC_DCSIZE_16;
if (mmc_id == 0) /* MCI0 */
atslave->cfg |= ATC_SRC_PER(AT_DMA_ID_MCI0)
| ATC_DST_PER(AT_DMA_ID_MCI0);
@@ -1094,25 +1088,8 @@ static struct platform_device at91sam9g45_tcb1_device = {
.num_resources = ARRAY_SIZE(tcb1_resources),
};
-#if defined(CONFIG_OF)
-static struct of_device_id tcb_ids[] = {
- { .compatible = "atmel,at91rm9200-tcb" },
- { /*sentinel*/ }
-};
-#endif
-
static void __init at91_add_device_tc(void)
{
-#if defined(CONFIG_OF)
- struct device_node *np;
-
- np = of_find_matching_node(NULL, tcb_ids);
- if (np) {
- of_node_put(np);
- return;
- }
-#endif
-
platform_device_register(&at91sam9g45_tcb0_device);
platform_device_register(&at91sam9g45_tcb1_device);
}
@@ -1207,6 +1184,104 @@ void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
/* --------------------------------------------------------------------
+ * ADC
+ * -------------------------------------------------------------------- */
+
+#if IS_ENABLED(CONFIG_AT91_ADC)
+static struct at91_adc_data adc_data;
+
+static struct resource adc_resources[] = {
+ [0] = {
+ .start = AT91SAM9G45_BASE_TSC,
+ .end = AT91SAM9G45_BASE_TSC + SZ_16K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = AT91SAM9G45_ID_TSC,
+ .end = AT91SAM9G45_ID_TSC,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct platform_device at91_adc_device = {
+ .name = "at91_adc",
+ .id = -1,
+ .dev = {
+ .platform_data = &adc_data,
+ },
+ .resource = adc_resources,
+ .num_resources = ARRAY_SIZE(adc_resources),
+};
+
+static struct at91_adc_trigger at91_adc_triggers[] = {
+ [0] = {
+ .name = "external-rising",
+ .value = 1,
+ .is_external = true,
+ },
+ [1] = {
+ .name = "external-falling",
+ .value = 2,
+ .is_external = true,
+ },
+ [2] = {
+ .name = "external-any",
+ .value = 3,
+ .is_external = true,
+ },
+ [3] = {
+ .name = "continuous",
+ .value = 6,
+ .is_external = false,
+ },
+};
+
+static struct at91_adc_reg_desc at91_adc_register_g45 = {
+ .channel_base = AT91_ADC_CHR(0),
+ .drdy_mask = AT91_ADC_DRDY,
+ .status_register = AT91_ADC_SR,
+ .trigger_register = 0x08,
+};
+
+void __init at91_add_device_adc(struct at91_adc_data *data)
+{
+ if (!data)
+ return;
+
+ if (test_bit(0, &data->channels_used))
+ at91_set_gpio_input(AT91_PIN_PD20, 0);
+ if (test_bit(1, &data->channels_used))
+ at91_set_gpio_input(AT91_PIN_PD21, 0);
+ if (test_bit(2, &data->channels_used))
+ at91_set_gpio_input(AT91_PIN_PD22, 0);
+ if (test_bit(3, &data->channels_used))
+ at91_set_gpio_input(AT91_PIN_PD23, 0);
+ if (test_bit(4, &data->channels_used))
+ at91_set_gpio_input(AT91_PIN_PD24, 0);
+ if (test_bit(5, &data->channels_used))
+ at91_set_gpio_input(AT91_PIN_PD25, 0);
+ if (test_bit(6, &data->channels_used))
+ at91_set_gpio_input(AT91_PIN_PD26, 0);
+ if (test_bit(7, &data->channels_used))
+ at91_set_gpio_input(AT91_PIN_PD27, 0);
+
+ if (data->use_external_triggers)
+ at91_set_A_periph(AT91_PIN_PD28, 0);
+
+ data->num_channels = 8;
+ data->startup_time = 40;
+ data->registers = &at91_adc_register_g45;
+ data->trigger_number = 4;
+ data->trigger_list = at91_adc_triggers;
+
+ adc_data = *data;
+ platform_device_register(&at91_adc_device);
+}
+#else
+void __init at91_add_device_adc(struct at91_adc_data *data) {}
+#endif
+
+/* --------------------------------------------------------------------
* RTT
* -------------------------------------------------------------------- */
@@ -1741,14 +1816,6 @@ void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
at91_uarts[portnr] = pdev;
}
-void __init at91_set_serial_console(unsigned portnr)
-{
- if (portnr < ATMEL_MAX_UART) {
- atmel_default_console_device = at91_uarts[portnr];
- at91sam9g45_set_console_clock(at91_uarts[portnr]->id);
- }
-}
-
void __init at91_add_device_serial(void)
{
int i;
@@ -1757,13 +1824,9 @@ void __init at91_add_device_serial(void)
if (at91_uarts[i])
platform_device_register(at91_uarts[i]);
}
-
- if (!atmel_default_console_device)
- printk(KERN_INFO "AT91: No default serial console defined.\n");
}
#else
void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
-void __init at91_set_serial_console(unsigned portnr) {}
void __init at91_add_device_serial(void) {}
#endif
@@ -1775,6 +1838,9 @@ void __init at91_add_device_serial(void) {}
*/
static int __init at91_add_standard_devices(void)
{
+ if (of_have_populated_dt())
+ return 0;
+
at91_add_device_hdmac();
at91_add_device_rtc();
at91_add_device_rtt();