powerpc: Add support for the MPC852 based mgsuvd board from keymile.

Supported SMC1 (serial console), SCC3 Ethernet (10Mbps hdx).

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 99 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
index 71d7562e190b..48a920a98e7b 100644
--- a/arch/powerpc/platforms/8xx/Kconfig
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -49,6 +49,12 @@ config PPC_ADDER875
           This enables support for the Analogue & Micro Adder 875
           board.
 
+config PPC_MGSUVD
+        bool "MGSUVD"
+        select CPM1
+        help
+          This enables support for the Keymile MGSUVD board.
+
 endchoice
 
 menu "Freescale Ethernet driver platform-specific options"
diff --git a/arch/powerpc/platforms/8xx/Makefile b/arch/powerpc/platforms/8xx/Makefile
index 7b71d9c8fb45..bdbfd7496018 100644
--- a/arch/powerpc/platforms/8xx/Makefile
+++ b/arch/powerpc/platforms/8xx/Makefile
@@ -6,3 +6,4 @@ obj-$(CONFIG_MPC885ADS)   += mpc885ads_setup.o
 obj-$(CONFIG_MPC86XADS)   += mpc86xads_setup.o
 obj-$(CONFIG_PPC_EP88XC)  += ep88xc.o
 obj-$(CONFIG_PPC_ADDER875) += adder875.o
+obj-$(CONFIG_PPC_MGSUVD) += mgsuvd.o
diff --git a/arch/powerpc/platforms/8xx/mgsuvd.c b/arch/powerpc/platforms/8xx/mgsuvd.c
new file mode 100644
index 000000000000..ca3cb071772c
--- /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,
+};