summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/platforms/8xx/mgsuvd.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/platforms/8xx/mgsuvd.c')
-rw-r--r--arch/powerpc/platforms/8xx/mgsuvd.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/8xx/mgsuvd.c b/arch/powerpc/platforms/8xx/mgsuvd.c
new file mode 100644
index 0000000..ca3cb07
--- /dev/null
+++ b/arch/powerpc/platforms/8xx/mgsuvd.c
@@ -0,0 +1,92 @@
+/*
+ *
+ * Platform setup for the Keymile mgsuvd board
+ *
+ * Heiko Schocher <hs@denx.de>
+ *
+ * Copyright 2008 DENX Software Engineering GmbH
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/ioport.h>
+#include <linux/of_platform.h>
+
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/processor.h>
+#include <asm/cpm1.h>
+#include <asm/prom.h>
+#include <asm/fs_pd.h>
+
+#include "mpc8xx.h"
+
+struct cpm_pin {
+ int port, pin, flags;
+};
+
+static __initdata struct cpm_pin mgsuvd_pins[] = {
+ /* SMC1 */
+ {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
+ {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
+
+ /* SCC3 */
+ {CPM_PORTA, 10, CPM_PIN_INPUT},
+ {CPM_PORTA, 11, CPM_PIN_INPUT},
+ {CPM_PORTA, 3, CPM_PIN_INPUT},
+ {CPM_PORTA, 2, CPM_PIN_INPUT},
+ {CPM_PORTC, 13, CPM_PIN_INPUT},
+};
+
+static void __init init_ioports(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(mgsuvd_pins); i++) {
+ struct cpm_pin *pin = &mgsuvd_pins[i];
+ cpm1_set_pin(pin->port, pin->pin, pin->flags);
+ }
+
+ setbits16(&mpc8xx_immr->im_ioport.iop_pcso, 0x300);
+ cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK5, CPM_CLK_RX);
+ cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK6, CPM_CLK_TX);
+ cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
+}
+
+static void __init mgsuvd_setup_arch(void)
+{
+ cpm_reset();
+ init_ioports();
+}
+
+static __initdata struct of_device_id of_bus_ids[] = {
+ { .compatible = "simple-bus" },
+ {},
+};
+
+static int __init declare_of_platform_devices(void)
+{
+ of_platform_bus_probe(NULL, of_bus_ids, NULL);
+ return 0;
+}
+machine_device_initcall(mgsuvd, declare_of_platform_devices);
+
+static int __init mgsuvd_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+ return of_flat_dt_is_compatible(root, "keymile,mgsuvd");
+}
+
+define_machine(mgsuvd) {
+ .name = "MGSUVD",
+ .probe = mgsuvd_probe,
+ .setup_arch = mgsuvd_setup_arch,
+ .init_IRQ = mpc8xx_pics_init,
+ .get_irq = mpc8xx_get_irq,
+ .restart = mpc8xx_restart,
+ .calibrate_decr = mpc8xx_calibrate_decr,
+ .set_rtc_time = mpc8xx_set_rtc_time,
+ .get_rtc_time = mpc8xx_get_rtc_time,
+};
OpenPOWER on IntegriCloud