powerpc: Add base support for the Freescale MPC8349E-mITX eval board

Added support for the Freescale MPC8343e-mITX board.  Currently based on the
8343 SYS code.  The 2nd PHY (5-port switch) and SATA are untested (work in
progress).

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig
index 7675e675dce1dab1e76d34bc8acf42dfd3357b64..5fe7b7faf45f1f8197148ea2533879d6474887d0 100644 (file)
--- a/arch/powerpc/platforms/83xx/Kconfig
+++ b/arch/powerpc/platforms/83xx/Kconfig
@@ -16,12 +16,21 @@ config MPC834x_SYS
          3 PCI slots.  The PIBs PCI initialization is the bootloader's
          responsiblilty.
 
+config MPC834x_ITX
+       bool "Freescale MPC834x ITX"
+       select DEFAULT_UIMAGE
+       help
+         This option enables support for the MPC 834x ITX evaluation board.
+
+         Be aware that PCI initialization is the bootloader's
+         responsiblilty.
+
 endchoice
 
 config MPC834x
        bool
        select PPC_UDBG_16550
        select PPC_INDIRECT_PCI
-       default y if MPC834x_SYS
+       default y if MPC834x_SYS || MPC834x_ITX
 
 endmenu

diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile
index 5c72367441a83dbc2c2e753bc204bdcb0f30484e..9387a110d28aa4f410b9f226648c9277e0ca9b07 100644 (file)
--- a/arch/powerpc/platforms/83xx/Makefile
+++ b/arch/powerpc/platforms/83xx/Makefile
@@ -4,3 +4,4 @@
 obj-y                          := misc.o
 obj-$(CONFIG_PCI)              += pci.o
 obj-$(CONFIG_MPC834x_SYS)      += mpc834x_sys.o
+obj-$(CONFIG_MPC834x_ITX)      += mpc834x_itx.o

diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c
new file mode 100644 (file)
index 0000000..b463056
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c
@@ -0,0 +1,156 @@
+/*
+ * arch/powerpc/platforms/83xx/mpc834x_itx.c
+ *
+ * MPC834x ITX board specific routines
+ *
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/major.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+
+#include <asm/system.h>
+#include <asm/atomic.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <sysdev/fsl_soc.h>
+
+#include "mpc83xx.h"
+
+#include <platforms/83xx/mpc834x_sys.h>
+
+#ifndef CONFIG_PCI
+unsigned long isa_io_base = 0;
+unsigned long isa_mem_base = 0;
+#endif
+
+#ifdef CONFIG_PCI
+static int
+mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+{
+       static char pci_irq_table[][4] =
+           /*
+            *      PCI IDSEL/INTPIN->INTLINE
+            *       A      B      C      D
+            */
+       {
+               {PIRQB, PIRQC, PIRQD, PIRQA},   /* idsel 0x0e */
+               {PIRQA, PIRQB, PIRQC, PIRQD},   /* idsel 0x0f */
+               {PIRQC, PIRQD, PIRQA, PIRQB},   /* idsel 0x10 */
+       };
+
+       const long min_idsel = 0x0e, max_idsel = 0x10, irqs_per_slot = 4;
+       return PCI_IRQ_TABLE_LOOKUP;
+}
+#endif                         /* CONFIG_PCI */
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc834x_itx_setup_arch(void)
+{
+       struct device_node *np;
+
+       if (ppc_md.progress)
+               ppc_md.progress("mpc834x_itx_setup_arch()", 0);
+
+       np = of_find_node_by_type(NULL, "cpu");
+       if (np != 0) {
+               unsigned int *fp =
+                   (int *)get_property(np, "clock-frequency", NULL);
+               if (fp != 0)
+                       loops_per_jiffy = *fp / HZ;
+               else
+                       loops_per_jiffy = 50000000 / HZ;
+               of_node_put(np);
+       }
+#ifdef CONFIG_PCI
+       for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
+               add_bridge(np);
+
+       ppc_md.pci_swizzle = common_swizzle;
+       ppc_md.pci_map_irq = mpc83xx_map_irq;
+       ppc_md.pci_exclude_device = mpc83xx_exclude_device;
+#endif
+
+#ifdef  CONFIG_ROOT_NFS
+       ROOT_DEV = Root_NFS;
+#else
+       ROOT_DEV = Root_HDA1;
+#endif
+}
+
+void __init mpc834x_itx_init_IRQ(void)
+{
+       u8 senses[8] = {
+               0,                      /* EXT 0 */
+               IRQ_SENSE_LEVEL,        /* EXT 1 */
+               IRQ_SENSE_LEVEL,        /* EXT 2 */
+               0,                      /* EXT 3 */
+#ifdef CONFIG_PCI
+               IRQ_SENSE_LEVEL,        /* EXT 4 */
+               IRQ_SENSE_LEVEL,        /* EXT 5 */
+               IRQ_SENSE_LEVEL,        /* EXT 6 */
+               IRQ_SENSE_LEVEL,        /* EXT 7 */
+#else
+               0,                      /* EXT 4 */
+               0,                      /* EXT 5 */
+               0,                      /* EXT 6 */
+               0,                      /* EXT 7 */
+#endif
+       };
+
+       ipic_init(get_immrbase() + 0x00700, 0, 0, senses, 8);
+
+       /* Initialize the default interrupt mapping priorities,
+        * in case the boot rom changed something on us.
+        */
+       ipic_set_default_priority();
+}
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc834x_itx_probe(void)
+{
+       /* We always match for now, eventually we should look at the flat
+          dev tree to ensure this is the board we are suppose to run on
+       */
+       return 1;
+}
+
+define_machine(mpc834x_itx) {
+       .name                   = "MPC834x ITX",
+       .probe                  = mpc834x_itx_probe,
+       .setup_arch             = mpc834x_itx_setup_arch,
+       .init_IRQ               = mpc834x_itx_init_IRQ,
+       .get_irq                = ipic_get_irq,
+       .restart                = mpc83xx_restart,
+       .time_init              = mpc83xx_time_init,
+       .calibrate_decr         = generic_calibrate_decr,
+       .progress               = udbg_progress,
+};

diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.h b/arch/powerpc/platforms/83xx/mpc834x_itx.h
new file mode 100644 (file)
index 0000000..174ca4e
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc834x_itx.h
@@ -0,0 +1,23 @@
+/*
+ * arch/powerpc/platforms/83xx/mpc834x_itx.h
+ *
+ * MPC834X ITX common board definitions
+ *
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#ifndef __MACH_MPC83XX_ITX_H__
+#define __MACH_MPC83XX_ITX_H__
+
+#define PIRQA  MPC83xx_IRQ_EXT4
+#define PIRQB  MPC83xx_IRQ_EXT5
+#define PIRQC  MPC83xx_IRQ_EXT6
+#define PIRQD  MPC83xx_IRQ_EXT7
+
+#endif                         /* __MACH_MPC83XX_ITX_H__ */