ARM: 5631/1: Platform data for CF/IDE support in AT91SAM9260
This patch adds platform data for CF/IDE support
and SMC init code for AT91SAM9260 SoC.
Tested-by: Sergey Matyukevich <geomatsi@gmail.com>
Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index d74c9ac..ee4ea0e7 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -1113,6 +1113,122 @@
void __init at91_add_device_serial(void) {}
#endif
+/* --------------------------------------------------------------------
+ * CF/IDE
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE) || \
+ defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \
+ defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
+
+static struct at91_cf_data cf0_data;
+
+static struct resource cf0_resources[] = {
+ [0] = {
+ .start = AT91_CHIPSELECT_4,
+ .end = AT91_CHIPSELECT_4 + SZ_256M - 1,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static struct platform_device cf0_device = {
+ .id = 0,
+ .dev = {
+ .platform_data = &cf0_data,
+ },
+ .resource = cf0_resources,
+ .num_resources = ARRAY_SIZE(cf0_resources),
+};
+
+static struct at91_cf_data cf1_data;
+
+static struct resource cf1_resources[] = {
+ [0] = {
+ .start = AT91_CHIPSELECT_5,
+ .end = AT91_CHIPSELECT_5 + SZ_256M - 1,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static struct platform_device cf1_device = {
+ .id = 1,
+ .dev = {
+ .platform_data = &cf1_data,
+ },
+ .resource = cf1_resources,
+ .num_resources = ARRAY_SIZE(cf1_resources),
+};
+
+void __init at91_add_device_cf(struct at91_cf_data *data)
+{
+ struct platform_device *pdev;
+ unsigned long csa;
+
+ if (!data)
+ return;
+
+ csa = at91_sys_read(AT91_MATRIX_EBICSA);
+
+ switch (data->chipselect) {
+ case 4:
+ at91_set_multi_drive(AT91_PIN_PC8, 0);
+ at91_set_A_periph(AT91_PIN_PC8, 0);
+ csa |= AT91_MATRIX_CS4A_SMC_CF1;
+ cf0_data = *data;
+ pdev = &cf0_device;
+ break;
+ case 5:
+ at91_set_multi_drive(AT91_PIN_PC9, 0);
+ at91_set_A_periph(AT91_PIN_PC9, 0);
+ csa |= AT91_MATRIX_CS5A_SMC_CF2;
+ cf1_data = *data;
+ pdev = &cf1_device;
+ break;
+ default:
+ printk(KERN_ERR "AT91 CF: bad chip-select requested (%u)\n",
+ data->chipselect);
+ return;
+ }
+
+ at91_sys_write(AT91_MATRIX_EBICSA, csa);
+
+ if (data->rst_pin) {
+ at91_set_multi_drive(data->rst_pin, 0);
+ at91_set_gpio_output(data->rst_pin, 1);
+ }
+
+ if (data->irq_pin) {
+ at91_set_gpio_input(data->irq_pin, 0);
+ at91_set_deglitch(data->irq_pin, 1);
+ }
+
+ if (data->det_pin) {
+ at91_set_gpio_input(data->det_pin, 0);
+ at91_set_deglitch(data->det_pin, 1);
+ }
+
+ at91_set_B_periph(AT91_PIN_PC6, 0); /* CFCE1 */
+ at91_set_B_periph(AT91_PIN_PC7, 0); /* CFCE2 */
+ at91_set_A_periph(AT91_PIN_PC10, 0); /* CFRNW */
+ at91_set_A_periph(AT91_PIN_PC15, 1); /* NWAIT */
+
+ if (data->flags & AT91_CF_TRUE_IDE)
+#if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE)
+ pdev->name = "pata_at91";
+#elif defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE)
+ pdev->name = "at91_ide";
+#else
+#warning "board requires AT91_CF_TRUE_IDE: enable either at91_ide or pata_at91"
+#endif
+ else
+ pdev->name = "at91_cf";
+
+ platform_device_register(pdev);
+}
+
+#else
+void __init at91_add_device_cf(struct at91_cf_data * data) {}
+#endif
/* -------------------------------------------------------------------- */
/*