[ARM] 4342/2: iop13xx: add resource definitions for the tpmi units

The tpmi units interface with the SAS controller on iop348.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

4 files changed, 237 insertions, 0 deletions

diff --git a/arch/arm/mach-iop13xx/Makefile b/arch/arm/mach-iop13xx/Makefile
index 4185e0586c33..da1609dc0dee 100644
--- a/arch/arm/mach-iop13xx/Makefile
+++ b/arch/arm/mach-iop13xx/Makefile
@@ -7,5 +7,6 @@ obj-$(CONFIG_ARCH_IOP13XX) += setup.o
 obj-$(CONFIG_ARCH_IOP13XX) += irq.o
 obj-$(CONFIG_ARCH_IOP13XX) += pci.o
 obj-$(CONFIG_ARCH_IOP13XX) += io.o
+obj-$(CONFIG_ARCH_IOP13XX) += tpmi.o
 obj-$(CONFIG_MACH_IQ81340SC) += iq81340sc.o
 obj-$(CONFIG_MACH_IQ81340MC) += iq81340mc.o
diff --git a/arch/arm/mach-iop13xx/iq81340mc.c b/arch/arm/mach-iop13xx/iq81340mc.c
index 1ae08cc04b48..268a8d84999c 100644
--- a/arch/arm/mach-iop13xx/iq81340mc.c
+++ b/arch/arm/mach-iop13xx/iq81340mc.c
@@ -75,6 +75,7 @@ static void __init iq81340mc_init(void)
 {
         iop13xx_platform_init();
         iq81340mc_pci_init();
+        iop13xx_add_tpmi_devices();
 }
 
 static void __init iq81340mc_timer_init(void)
diff --git a/arch/arm/mach-iop13xx/iq81340sc.c b/arch/arm/mach-iop13xx/iq81340sc.c
index 0f8801406f23..a51ffd2683e5 100644
--- a/arch/arm/mach-iop13xx/iq81340sc.c
+++ b/arch/arm/mach-iop13xx/iq81340sc.c
@@ -77,6 +77,7 @@ static void __init iq81340sc_init(void)
 {
         iop13xx_platform_init();
         iq81340sc_pci_init();
+        iop13xx_add_tpmi_devices();
 }
 
 static void __init iq81340sc_timer_init(void)
diff --git a/arch/arm/mach-iop13xx/tpmi.c b/arch/arm/mach-iop13xx/tpmi.c
new file mode 100644
index 000000000000..d3dc278213da
--- /dev/null
+++ b/arch/arm/mach-iop13xx/tpmi.c
@@ -0,0 +1,234 @@
+/*
+ * iop13xx tpmi device resources
+ * Copyright (c) 2005-2006, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+
+/* assumes CONTROLLER_ONLY# is never asserted in the ESSR register */
+#define IOP13XX_TPMI_MMR(dev)   IOP13XX_REG_ADDR32_PHYS(0x48000 + (dev << 12))
+#define IOP13XX_TPMI_MEM(dev)   IOP13XX_REG_ADDR32_PHYS(0x60000 + (dev << 13))
+#define IOP13XX_TPMI_CTRL(dev)  IOP13XX_REG_ADDR32_PHYS(0x50000 + (dev << 10))
+#define IOP13XX_TPMI_MMR_SIZE       (SZ_4K - 1)
+#define IOP13XX_TPMI_MEM_SIZE       (255)
+#define IOP13XX_TPMI_MEM_CTRL       (SZ_1K - 1)
+#define IOP13XX_TPMI_RESOURCE_MMR  0
+#define IOP13XX_TPMI_RESOURCE_MEM  1
+#define IOP13XX_TPMI_RESOURCE_CTRL 2
+#define IOP13XX_TPMI_RESOURCE_IRQ  3
+
+static struct resource iop13xx_tpmi_0_resources[] = {
+        [IOP13XX_TPMI_RESOURCE_MMR] = {
+                .start = IOP13XX_TPMI_MMR(4), /* tpmi0 starts at dev == 4 */
+                .end = IOP13XX_TPMI_MMR(4) + IOP13XX_TPMI_MMR_SIZE,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_MEM] = {
+                .start = IOP13XX_TPMI_MEM(0),
+                .end = IOP13XX_TPMI_MEM(0) + IOP13XX_TPMI_MEM_SIZE,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_CTRL] = {
+                .start = IOP13XX_TPMI_CTRL(0),
+                .end = IOP13XX_TPMI_CTRL(0) + IOP13XX_TPMI_MEM_CTRL,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_IRQ] = {
+                .start = IRQ_IOP13XX_TPMI0_OUT,
+                .end = IRQ_IOP13XX_TPMI0_OUT,
+                .flags = IORESOURCE_IRQ
+        }
+};
+
+static struct resource iop13xx_tpmi_1_resources[] = {
+        [IOP13XX_TPMI_RESOURCE_MMR] = {
+                .start = IOP13XX_TPMI_MMR(1),
+                .end = IOP13XX_TPMI_MMR(1) + IOP13XX_TPMI_MMR_SIZE,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_MEM] = {
+                .start = IOP13XX_TPMI_MEM(1),
+                .end = IOP13XX_TPMI_MEM(1) + IOP13XX_TPMI_MEM_SIZE,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_CTRL] = {
+                .start = IOP13XX_TPMI_CTRL(1),
+                .end = IOP13XX_TPMI_CTRL(1) + IOP13XX_TPMI_MEM_CTRL,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_IRQ] = {
+                .start = IRQ_IOP13XX_TPMI1_OUT,
+                .end = IRQ_IOP13XX_TPMI1_OUT,
+                .flags = IORESOURCE_IRQ
+        }
+};
+
+static struct resource iop13xx_tpmi_2_resources[] = {
+        [IOP13XX_TPMI_RESOURCE_MMR] = {
+                .start = IOP13XX_TPMI_MMR(2),
+                .end = IOP13XX_TPMI_MMR(2) + IOP13XX_TPMI_MMR_SIZE,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_MEM] = {
+                .start = IOP13XX_TPMI_MEM(2),
+                .end = IOP13XX_TPMI_MEM(2) + IOP13XX_TPMI_MEM_SIZE,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_CTRL] = {
+                .start = IOP13XX_TPMI_CTRL(2),
+                .end = IOP13XX_TPMI_CTRL(2) + IOP13XX_TPMI_MEM_CTRL,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_IRQ] = {
+                .start = IRQ_IOP13XX_TPMI2_OUT,
+                .end = IRQ_IOP13XX_TPMI2_OUT,
+                .flags = IORESOURCE_IRQ
+        }
+};
+
+static struct resource iop13xx_tpmi_3_resources[] = {
+        [IOP13XX_TPMI_RESOURCE_MMR] = {
+                .start = IOP13XX_TPMI_MMR(3),
+                .end = IOP13XX_TPMI_MMR(3) + IOP13XX_TPMI_MMR_SIZE,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_MEM] = {
+                .start = IOP13XX_TPMI_MEM(3),
+                .end = IOP13XX_TPMI_MEM(3) + IOP13XX_TPMI_MEM_SIZE,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_CTRL] = {
+                .start = IOP13XX_TPMI_CTRL(3),
+                .end = IOP13XX_TPMI_CTRL(3) + IOP13XX_TPMI_MEM_CTRL,
+                .flags = IORESOURCE_MEM,
+        },
+        [IOP13XX_TPMI_RESOURCE_IRQ] = {
+                .start = IRQ_IOP13XX_TPMI3_OUT,
+                .end = IRQ_IOP13XX_TPMI3_OUT,
+                .flags = IORESOURCE_IRQ
+        }
+};
+
+u64 iop13xx_tpmi_mask = DMA_64BIT_MASK;
+static struct platform_device iop13xx_tpmi_0_device = {
+        .name = "iop-tpmi",
+        .id = 0,
+        .num_resources = 4,
+        .resource = iop13xx_tpmi_0_resources,
+        .dev = {
+                .dma_mask          = &iop13xx_tpmi_mask,
+                .coherent_dma_mask = DMA_64BIT_MASK,
+        },
+};
+
+static struct platform_device iop13xx_tpmi_1_device = {
+        .name = "iop-tpmi",
+        .id = 1,
+        .num_resources = 4,
+        .resource = iop13xx_tpmi_1_resources,
+        .dev = {
+                .dma_mask          = &iop13xx_tpmi_mask,
+                .coherent_dma_mask = DMA_64BIT_MASK,
+        },
+};
+
+static struct platform_device iop13xx_tpmi_2_device = {
+        .name = "iop-tpmi",
+        .id = 2,
+        .num_resources = 4,
+        .resource = iop13xx_tpmi_2_resources,
+        .dev = {
+                .dma_mask          = &iop13xx_tpmi_mask,
+                .coherent_dma_mask = DMA_64BIT_MASK,
+        },
+};
+
+static struct platform_device iop13xx_tpmi_3_device = {
+        .name = "iop-tpmi",
+        .id = 3,
+        .num_resources = 4,
+        .resource = iop13xx_tpmi_3_resources,
+        .dev = {
+                .dma_mask          = &iop13xx_tpmi_mask,
+                .coherent_dma_mask = DMA_64BIT_MASK,
+        },
+};
+
+__init void iop13xx_add_tpmi_devices(void)
+{
+        unsigned short device_id;
+
+        /* tpmi's not present on iop341 or iop342 */
+        if (__raw_readl(IOP13XX_ESSR0) & IOP13XX_INTERFACE_SEL_PCIX)
+                /* ATUE must be present */
+                device_id = __raw_readw(IOP13XX_ATUE_DID);
+        else
+                /* ATUX must be present */
+                device_id = __raw_readw(IOP13XX_ATUX_DID);
+
+        switch (device_id) {
+        /* iop34[1|2] 0-tpmi */
+        case 0x3380:
+        case 0x3384:
+        case 0x3388:
+        case 0x338c:
+        case 0x3382:
+        case 0x3386:
+        case 0x338a:
+        case 0x338e:
+                return;
+        /* iop348 1-tpmi */
+        case 0x3310:
+        case 0x3312:
+        case 0x3314:
+        case 0x3318:
+        case 0x331a:
+        case 0x331c:
+        case 0x33c0:
+        case 0x33c2:
+        case 0x33c4:
+        case 0x33c8:
+        case 0x33ca:
+        case 0x33cc:
+        case 0x33b0:
+        case 0x33b2:
+        case 0x33b4:
+        case 0x33b8:
+        case 0x33ba:
+        case 0x33bc:
+        case 0x3320:
+        case 0x3322:
+        case 0x3324:
+        case 0x3328:
+        case 0x332a:
+        case 0x332c:
+                platform_device_register(&iop13xx_tpmi_0_device);
+                return;
+        default:
+                platform_device_register(&iop13xx_tpmi_0_device);
+                platform_device_register(&iop13xx_tpmi_1_device);
+                platform_device_register(&iop13xx_tpmi_2_device);
+                platform_device_register(&iop13xx_tpmi_3_device);
+                return;
+        }
+}