[PATCH] ppc32: Adds support for the LITE5200B dev board

ppc32: Adds support for the LITE5200B dev board

This LITE5200B devboard is the new development board for the
Freescale MPC5200 processor. It has two PCI slots and so a
different PCI IRQ routing.

Signed-off-by: John Rigby <jrigby@freescale.com>
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 3a3e302..75802ca 100644 (file)
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -715,6 +715,13 @@ config LITE5200
          much but it's only been tested on this board version. I think this
          board is also known as IceCube.
 
+config LITE5200B
+       bool "Freescale LITE5200B"
+       depends LITE5200
+       help
+         Support for the LITE5200B dev board for the MPC5200 from Freescale.
+         This is the new board with 2 PCI slots.
+
 config MPC834x_SYS
        bool "Freescale MPC834x SYS"
        help

diff --git a/arch/ppc/platforms/lite5200.c b/arch/ppc/platforms/lite5200.c
index 5171b53..d91efe1 100644 (file)
--- a/arch/ppc/platforms/lite5200.c
+++ b/arch/ppc/platforms/lite5200.c
@@ -34,6 +34,7 @@
 #include <asm/mpc52xx.h>
 #include <asm/ppc_sys.h>
 #include <asm/machdep.h>
+#include <asm/pci-bridge.h>
 
 #include <syslib/mpc52xx_pci.h>
 
@@ -68,12 +69,32 @@ lite5200_show_cpuinfo(struct seq_file *m)
 }
 
 #ifdef CONFIG_PCI
+#ifdef CONFIG_LITE5200B
+static int
+lite5200_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
+        */
+       {
+               {MPC52xx_IRQ0, MPC52xx_IRQ1, MPC52xx_IRQ2, MPC52xx_IRQ3},
+               {MPC52xx_IRQ1, MPC52xx_IRQ2, MPC52xx_IRQ3, MPC52xx_IRQ0},
+       };
+
+       const long min_idsel = 24, max_idsel = 25, irqs_per_slot = 4;
+       return PCI_IRQ_TABLE_LOOKUP;
+}
+#else /* Original Lite */
 static int
 lite5200_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
 {
        return (pin == 1) && (idsel==24) ? MPC52xx_IRQ0 : -1;
 }
 #endif
+#endif
 
 static void __init
 lite5200_setup_cpu(void)
@@ -127,11 +148,17 @@ lite5200_setup_cpu(void)
        out_be32(&xlb->config, in_be32(&xlb->config) | MPC52xx_XLB_CFG_SNOOP);
        out_be32(&xlb->snoop_window, MPC52xx_PCI_TARGET_MEM | 0x1d);
 
-       /* IRQ[0-3] setup : IRQ0     - Level Active Low  */
-       /*                  IRQ[1-3] - Level Active High */
+       /* IRQ[0-3] setup */
        intr_ctrl = in_be32(&intr->ctrl);
        intr_ctrl &= ~0x00ff0000;
-       intr_ctrl |=  0x00c00000;
+#ifdef CONFIG_LITE5200B
+       /* IRQ[0-3] Level Active Low */
+       intr_ctrl |=  0x00ff0000;
+#else
+       /* IRQ0 Level Active Low
+        * IRQ[1-3] Level Active High */
+       intr_ctrl |=  0x00c00000;
+#endif
        out_be32(&intr->ctrl, intr_ctrl);
 
        /* Unmap reg zone */