Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / powerpc / platforms / 8xx / adder875.c

diff --git a/kernel/arch/powerpc/platforms/8xx/adder875.c b/kernel/arch/powerpc/platforms/8xx/adder875.c
new file mode 100644 (file)
index 0000000..61cae4c
--- /dev/null
+++ b/kernel/arch/powerpc/platforms/8xx/adder875.c
@@ -0,0 +1,118 @@
+/* Analogue & Micro Adder MPC875 board support
+ *
+ * Author: Scott Wood <scottwood@freescale.com>
+ *
+ * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/fs_enet_pd.h>
+#include <linux/of_platform.h>
+
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/cpm1.h>
+#include <asm/fs_pd.h>
+#include <asm/udbg.h>
+#include <asm/prom.h>
+
+#include "mpc8xx.h"
+
+struct cpm_pin {
+       int port, pin, flags;
+};
+
+static __initdata struct cpm_pin adder875_pins[] = {
+       /* SMC1 */
+       {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
+       {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
+
+       /* MII1 */
+       {CPM_PORTA, 0, CPM_PIN_INPUT},
+       {CPM_PORTA, 1, CPM_PIN_INPUT},
+       {CPM_PORTA, 2, CPM_PIN_INPUT},
+       {CPM_PORTA, 3, CPM_PIN_INPUT},
+       {CPM_PORTA, 4, CPM_PIN_OUTPUT},
+       {CPM_PORTA, 10, CPM_PIN_OUTPUT},
+       {CPM_PORTA, 11, CPM_PIN_OUTPUT},
+       {CPM_PORTB, 19, CPM_PIN_INPUT},
+       {CPM_PORTB, 31, CPM_PIN_INPUT},
+       {CPM_PORTC, 12, CPM_PIN_INPUT},
+       {CPM_PORTC, 13, CPM_PIN_INPUT},
+       {CPM_PORTE, 30, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 31, CPM_PIN_OUTPUT},
+
+       /* MII2 */
+       {CPM_PORTE, 14, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
+       {CPM_PORTE, 15, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
+       {CPM_PORTE, 16, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 17, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
+       {CPM_PORTE, 18, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
+       {CPM_PORTE, 19, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
+       {CPM_PORTE, 20, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
+       {CPM_PORTE, 21, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 22, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 23, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 24, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 25, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 26, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 27, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 28, CPM_PIN_OUTPUT},
+       {CPM_PORTE, 29, CPM_PIN_OUTPUT},
+};
+
+static void __init init_ioports(void)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(adder875_pins); i++) {
+               const struct cpm_pin *pin = &adder875_pins[i];
+               cpm1_set_pin(pin->port, pin->pin, pin->flags);
+       }
+
+       cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
+
+       /* Set FEC1 and FEC2 to MII mode */
+       clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180);
+}
+
+static void __init adder875_setup(void)
+{
+       cpm_reset();
+       init_ioports();
+}
+
+static int __init adder875_probe(void)
+{
+       unsigned long root = of_get_flat_dt_root();
+       return of_flat_dt_is_compatible(root, "analogue-and-micro,adder875");
+}
+
+static const struct of_device_id of_bus_ids[] __initconst = {
+       { .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(adder875, declare_of_platform_devices);
+
+define_machine(adder875) {
+       .name = "Adder MPC875",
+       .probe = adder875_probe,
+       .setup_arch = adder875_setup,
+       .init_IRQ = mpc8xx_pics_init,
+       .get_irq = mpc8xx_get_irq,
+       .restart = mpc8xx_restart,
+       .calibrate_decr = generic_calibrate_decr,
+       .set_rtc_time = mpc8xx_set_rtc_time,
+       .get_rtc_time = mpc8xx_get_rtc_time,
+       .progress = udbg_progress,
+};