Signed-off-by: Stanislaw Gruszka <stf_xl@xxxxx>
---
arch/arm/mach-at91/at91sam9263_devices.c | 106 ++++++++++++++++++++++++++++++
1 files changed, 106 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index b753cb8..7c950f1 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -15,6 +15,7 @@
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/i2c-gpio.h>
+#include <linux/delay.h>
#include <linux/fb.h>
#include <video/atmel_lcdc.h>
@@ -347,6 +348,111 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
#endif
+/* --------------------------------------------------------------------
+ * Compact Flash (PCMCIA or IDE)
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE) || \
+ defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE)
+
+static struct resource cf_resources[] = {
+ [0] = {
+ .start = 0,
+ .end = 0,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct at91_cf_data cf_data;
+
+static struct platform_device at91_cf_device = {
+ .id = -1,
+ .dev = {
+ .platform_data = &cf_data,
+ },
+ .resource = cf_resources,
+ .num_resources = ARRAY_SIZE(cf_resources),
+};
+
+void __init at91_add_device_cf(struct at91_cf_data *data)
+{
+ unsigned long ebi0_csa, addr_space;
+
+ if (!data)
+ return;
+
+ /*
+ * assign CS4 or CS5 to SMC with Compact Flash logic support,
+ * we assume SMC timings are configured by board code,
+ * except True IDE where timings are controlled by driver
+ */
+ ebi0_csa = at91_sys_read(AT91_MATRIX_EBI0CSA);
+ switch (data->chipselect) {
+ case 4:
+ at91_set_A_periph(AT91_PIN_PD6, 0); /* EBI0_NCS4/CFCS0 */
+ ebi0_csa |= AT91_MATRIX_EBI0_CS4A_SMC_CF1;
+ addr_space = AT91_CHIPSELECT_4;
+ break;
+ case 5:
+ at91_set_A_periph(AT91_PIN_PD7, 0); /* EBI0_NCS5/CFCS1 */
+ ebi0_csa |= AT91_MATRIX_EBI0_CS5A_SMC_CF2;
+ addr_space = AT91_CHIPSELECT_5;
+ break;
+ default:
+ printk(KERN_ERR "AT91: CF bad chip-select requested (%u)\n",
+ data->chipselect);
+ return;
+ }
+ at91_sys_write(AT91_MATRIX_EBI0CSA, ebi0_csa);
+
+ cf_resources[0].start = addr_space;
+ cf_resources[0].end = addr_space + SZ_256M - 1;
+
+ if (data->det_pin) {
+ /* check if device is present */
+ at91_set_gpio_input(data->det_pin, 1);
+ at91_set_deglitch(data->det_pin, 1);
+ if (at91_get_gpio_value(data->det_pin) != 0) {
+ printk(KERN_ERR "AT91: no CF card detected\n");
+ return;
+ }
+ }
+
+ if (data->rst_pin) {
+ /* reset the card */
+ int reset = (data->flags & AT91_CF_TRUE_IDE) ? 0 : 1;
+
+ at91_set_gpio_output(data->rst_pin, reset);
+ udelay(25); /* taken from ATA docs, CFA not specify it ? */
+ at91_set_gpio_output(data->rst_pin, !reset);
+ }
+
+ if (data->irq_pin) {
+ at91_set_gpio_input(data->irq_pin, 1);
+ at91_set_deglitch(data->irq_pin, 1);
+ }
+
+ if (data->vcc_pin)
+ /* initially off */
+ at91_set_gpio_output(data->vcc_pin, 0);
+
+ /* enable EBI controlled pins */
+ at91_set_A_periph(AT91_PIN_PD5, 1); /* NWAIT */
+ at91_set_A_periph(AT91_PIN_PD8, 0); /* CFCE1 */
+ at91_set_A_periph(AT91_PIN_PD9, 0); /* CFCE2 */
+ at91_set_A_periph(AT91_PIN_PD14, 0); /* CFNRW */
+
+ if (data->flags & AT91_CF_TRUE_IDE)
+ at91_cf_device.name = "at91_ide";
+ else
+ at91_cf_device.name = "at91_cf";
+
+ cf_data = *data;
+ platform_device_register(&at91_cf_device);
+}
+#else
+void __init at91_add_device_cf(struct at91_ide_data *data) {}
+#endif
/* --------------------------------------------------------------------
* NAND / SmartMedia
--
1.5.2.5
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