[POWERPC] 8xx: Analogue & Micro Adder875 board support.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 128 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
index 91fbe4241918..7fd224ca233d 100644
--- a/arch/powerpc/platforms/8xx/Kconfig
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -44,6 +44,15 @@ config PPC_EP88XC
           This board is also resold by Freescale as the QUICCStart
           MPC885 Evaluation System and/or the CWH-PPC-885XN-VE.
 
+config PPC_ADDER875
+        bool "Analogue & Micro Adder 875"
+        select CPM1
+        select PPC_CPM_NEW_BINDING
+        select REDBOOT
+        help
+          This enables support for the Analogue & Micro Adder 875
+          board.
+
 endchoice
 
 menu "Freescale Ethernet driver platform-specific options"
diff --git a/arch/powerpc/platforms/8xx/Makefile b/arch/powerpc/platforms/8xx/Makefile
index 8b7098018b59..7b71d9c8fb45 100644
--- a/arch/powerpc/platforms/8xx/Makefile
+++ b/arch/powerpc/platforms/8xx/Makefile
@@ -5,3 +5,4 @@ obj-$(CONFIG_PPC_8xx)	  += m8xx_setup.o
 obj-$(CONFIG_MPC885ADS)   += mpc885ads_setup.o
 obj-$(CONFIG_MPC86XADS)   += mpc86xads_setup.o
 obj-$(CONFIG_PPC_EP88XC)  += ep88xc.o
+obj-$(CONFIG_PPC_ADDER875) += adder875.o
diff --git a/arch/powerpc/platforms/8xx/adder875.c b/arch/powerpc/platforms/8xx/adder875.c
new file mode 100644
index 000000000000..af040fd2dcc6
--- /dev/null
+++ b/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/commproc.h>
+#include <asm/fs_pd.h>
+#include <asm/udbg.h>
+#include <asm/prom.h>
+
+#include <sysdev/commproc.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 __initdata struct of_device_id __initdata 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(adder875, declare_of_platform_devices);
+
+define_machine(adder875) {
+        .name = "Adder MPC875",
+        .probe = adder875_probe,
+        .setup_arch = adder875_setup,
+        .init_IRQ = m8xx_pic_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,
+};