4 files changed, 441 insertions, 0 deletions

diff --git a/arch/sh/boards/mach-r2d/Kconfig b/arch/sh/boards/mach-r2d/Kconfig
new file mode 100644
index 000000000000..8122a9667fc9
--- /dev/null
+++ b/arch/sh/boards/mach-r2d/Kconfig
@@ -0,0 +1,23 @@
+if SH_RTS7751R2D
+
+menu "RTS7751R2D Board Revision"
+
+config RTS7751R2D_PLUS
+        bool "R2D-PLUS"
+        help
+          Selecting this option will configure the kernel for R2D-PLUS.
+
+          R2D-PLUS is the smaller of the two R2D board versions, equipped
+          with a single PCI slot.
+
+config RTS7751R2D_1
+        bool "R2D-1"
+        help
+          Selecting this option will configure the kernel for R2D-1.
+
+          R2D-1 is the larger of the two R2D board versions, equipped
+          with two PCI slots.
+endmenu
+
+endif
+
diff --git a/arch/sh/boards/mach-r2d/Makefile b/arch/sh/boards/mach-r2d/Makefile
new file mode 100644
index 000000000000..0d4c75a72be0
--- /dev/null
+++ b/arch/sh/boards/mach-r2d/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the RTS7751R2D specific parts of the kernel
+#
+
+obj-y    := setup.o irq.o
diff --git a/arch/sh/boards/mach-r2d/irq.c b/arch/sh/boards/mach-r2d/irq.c
new file mode 100644
index 000000000000..8e49f6e51247
--- /dev/null
+++ b/arch/sh/boards/mach-r2d/irq.c
@@ -0,0 +1,155 @@
+/*
+ * linux/arch/sh/boards/renesas/rts7751r2d/irq.c
+ *
+ * Copyright (C) 2007  Magnus Damm
+ * Copyright (C) 2000  Kazumoto Kojima
+ *
+ * Renesas Technology Sales RTS7751R2D Support, R2D-PLUS and R2D-1.
+ *
+ * Modified for RTS7751R2D by
+ * Atom Create Engineering Co., Ltd. 2002.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <asm/rts7751r2d.h>
+
+#define R2D_NR_IRL 13
+
+enum {
+        UNUSED = 0,
+
+        /* board specific interrupt sources (R2D-1 and R2D-PLUS) */
+        EXT,              /* EXT_INT0-3 */
+        RTC_T, RTC_A,     /* Real Time Clock */
+        AX88796,          /* Ethernet controller (R2D-1 board) */
+        KEY,              /* Key input (R2D-PLUS board) */
+        SDCARD,           /* SD Card */
+        CF_CD, CF_IDE,    /* CF Card Detect + CF IDE */
+        SM501,            /* SM501 aka Voyager */
+        PCI_INTD_RTL8139, /* Ethernet controller */
+        PCI_INTC_PCI1520, /* Cardbus/PCMCIA bridge */
+        PCI_INTB_RTL8139, /* Ethernet controller with HUB (R2D-PLUS board) */
+        PCI_INTB_SLOT,    /* PCI Slot 3.3v (R2D-1 board) */
+        PCI_INTA_SLOT,    /* PCI Slot 3.3v */
+        TP,               /* Touch Panel */
+};
+
+#ifdef CONFIG_RTS7751R2D_1
+
+/* Vectors for R2D-1 */
+static struct intc_vect vectors_r2d_1[] __initdata = {
+        INTC_IRQ(EXT, IRQ_EXT),
+        INTC_IRQ(RTC_T, IRQ_RTC_T), INTC_IRQ(RTC_A, IRQ_RTC_A),
+        INTC_IRQ(AX88796, IRQ_AX88796), INTC_IRQ(SDCARD, IRQ_SDCARD),
+        INTC_IRQ(CF_CD, IRQ_CF_CD), INTC_IRQ(CF_IDE, IRQ_CF_IDE), /* ng */
+        INTC_IRQ(SM501, IRQ_VOYAGER),
+        INTC_IRQ(PCI_INTD_RTL8139, IRQ_PCI_INTD),
+        INTC_IRQ(PCI_INTC_PCI1520, IRQ_PCI_INTC),
+        INTC_IRQ(PCI_INTB_SLOT, IRQ_PCI_INTB),
+        INTC_IRQ(PCI_INTA_SLOT, IRQ_PCI_INTA),
+        INTC_IRQ(TP, IRQ_TP),
+};
+
+/* IRLMSK mask register layout for R2D-1 */
+static struct intc_mask_reg mask_registers_r2d_1[] __initdata = {
+        { 0xa4000000, 0, 16, /* IRLMSK */
+          { TP, PCI_INTA_SLOT, PCI_INTB_SLOT,
+            PCI_INTC_PCI1520, PCI_INTD_RTL8139,
+            SM501, CF_IDE, CF_CD, SDCARD, AX88796,
+            RTC_A, RTC_T, 0, 0, 0, EXT } },
+};
+
+/* IRLn to IRQ table for R2D-1 */
+static unsigned char irl2irq_r2d_1[R2D_NR_IRL] __initdata = {
+        IRQ_PCI_INTD, IRQ_CF_IDE, IRQ_CF_CD, IRQ_PCI_INTC,
+        IRQ_VOYAGER, IRQ_AX88796, IRQ_RTC_A, IRQ_RTC_T,
+        IRQ_SDCARD, IRQ_PCI_INTA, IRQ_PCI_INTB, IRQ_EXT,
+        IRQ_TP,
+};
+
+static DECLARE_INTC_DESC(intc_desc_r2d_1, "r2d-1", vectors_r2d_1,
+                         NULL, mask_registers_r2d_1, NULL, NULL);
+
+#endif /* CONFIG_RTS7751R2D_1 */
+
+#ifdef CONFIG_RTS7751R2D_PLUS
+
+/* Vectors for R2D-PLUS */
+static struct intc_vect vectors_r2d_plus[] __initdata = {
+        INTC_IRQ(EXT, IRQ_EXT),
+        INTC_IRQ(RTC_T, IRQ_RTC_T), INTC_IRQ(RTC_A, IRQ_RTC_A),
+        INTC_IRQ(KEY, IRQ_KEY), INTC_IRQ(SDCARD, IRQ_SDCARD),
+        INTC_IRQ(CF_CD, IRQ_CF_CD), INTC_IRQ(CF_IDE, IRQ_CF_IDE),
+        INTC_IRQ(SM501, IRQ_VOYAGER),
+        INTC_IRQ(PCI_INTD_RTL8139, IRQ_PCI_INTD),
+        INTC_IRQ(PCI_INTC_PCI1520, IRQ_PCI_INTC),
+        INTC_IRQ(PCI_INTB_RTL8139, IRQ_PCI_INTB),
+        INTC_IRQ(PCI_INTA_SLOT, IRQ_PCI_INTA),
+        INTC_IRQ(TP, IRQ_TP),
+};
+
+/* IRLMSK mask register layout for R2D-PLUS */
+static struct intc_mask_reg mask_registers_r2d_plus[] __initdata = {
+        { 0xa4000000, 0, 16, /* IRLMSK */
+          { TP, PCI_INTA_SLOT, PCI_INTB_RTL8139,
+            PCI_INTC_PCI1520, PCI_INTD_RTL8139,
+            SM501, CF_IDE, CF_CD, SDCARD, KEY,
+            RTC_A, RTC_T, 0, 0, 0, EXT } },
+};
+
+/* IRLn to IRQ table for R2D-PLUS */
+static unsigned char irl2irq_r2d_plus[R2D_NR_IRL] __initdata = {
+        IRQ_PCI_INTD, IRQ_CF_IDE, IRQ_CF_CD, IRQ_PCI_INTC,
+        IRQ_VOYAGER, IRQ_KEY, IRQ_RTC_A, IRQ_RTC_T,
+        IRQ_SDCARD, IRQ_PCI_INTA, IRQ_PCI_INTB, IRQ_EXT,
+        IRQ_TP,
+};
+
+static DECLARE_INTC_DESC(intc_desc_r2d_plus, "r2d-plus", vectors_r2d_plus,
+                         NULL, mask_registers_r2d_plus, NULL, NULL);
+
+#endif /* CONFIG_RTS7751R2D_PLUS */
+
+static unsigned char irl2irq[R2D_NR_IRL];
+
+int rts7751r2d_irq_demux(int irq)
+{
+        if (irq >= R2D_NR_IRL || !irl2irq[irq])
+                return irq;
+
+        return irl2irq[irq];
+}
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_rts7751r2d_IRQ(void)
+{
+        struct intc_desc *d;
+
+        switch (ctrl_inw(PA_VERREG) & 0xf0) {
+#ifdef CONFIG_RTS7751R2D_PLUS
+        case 0x10:
+                printk(KERN_INFO "Using R2D-PLUS interrupt controller.\n");
+                d = &intc_desc_r2d_plus;
+                memcpy(irl2irq, irl2irq_r2d_plus, R2D_NR_IRL);
+                break;
+#endif
+#ifdef CONFIG_RTS7751R2D_1
+        case 0x00: /* according to manual */
+        case 0x30: /* in reality */
+                printk(KERN_INFO "Using R2D-1 interrupt controller.\n");
+                d = &intc_desc_r2d_1;
+                memcpy(irl2irq, irl2irq_r2d_1, R2D_NR_IRL);
+                break;
+#endif
+        default:
+                printk(KERN_INFO "Unknown R2D interrupt controller 0x%04x\n",
+                       ctrl_inw(PA_VERREG));
+                return;
+        }
+
+        register_intc_controller(d);
+}
diff --git a/arch/sh/boards/mach-r2d/setup.c b/arch/sh/boards/mach-r2d/setup.c
new file mode 100644
index 000000000000..2308e8753bcd
--- /dev/null
+++ b/arch/sh/boards/mach-r2d/setup.c
@@ -0,0 +1,258 @@
+/*
+ * Renesas Technology Sales RTS7751R2D Support.
+ *
+ * Copyright (C) 2002 - 2006 Atom Create Engineering Co., Ltd.
+ * Copyright (C) 2004 - 2007 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/ata_platform.h>
+#include <linux/sm501.h>
+#include <linux/sm501-regs.h>
+#include <linux/pm.h>
+#include <linux/fb.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_bitbang.h>
+#include <asm/machvec.h>
+#include <asm/rts7751r2d.h>
+#include <asm/io.h>
+#include <asm/io_trapped.h>
+#include <asm/spi.h>
+
+static struct resource cf_ide_resources[] = {
+        [0] = {
+                .start  = PA_AREA5_IO + 0x1000,
+                .end    = PA_AREA5_IO + 0x1000 + 0x10 - 0x2,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = PA_AREA5_IO + 0x80c,
+                .end    = PA_AREA5_IO + 0x80c,
+                .flags  = IORESOURCE_MEM,
+        },
+#ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
+        [2] = {
+                .start  = IRQ_CF_IDE,
+                .flags  = IORESOURCE_IRQ,
+        },
+#endif
+};
+
+static struct pata_platform_info pata_info = {
+        .ioport_shift   = 1,
+};
+
+static struct platform_device cf_ide_device  = {
+        .name           = "pata_platform",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(cf_ide_resources),
+        .resource       = cf_ide_resources,
+        .dev    = {
+                .platform_data  = &pata_info,
+        },
+};
+
+static struct spi_board_info spi_bus[] = {
+        {
+                .modalias       = "rtc-r9701",
+                .max_speed_hz   = 1000000,
+                .mode           = SPI_MODE_3,
+        },
+};
+
+static void r2d_chip_select(struct sh_spi_info *spi, int cs, int state)
+{
+        BUG_ON(cs != 0);  /* Single Epson RTC-9701JE attached on CS0 */
+        ctrl_outw(state == BITBANG_CS_ACTIVE, PA_RTCCE);
+}
+
+static struct sh_spi_info spi_info = {
+        .num_chipselect = 1,
+        .chip_select = r2d_chip_select,
+};
+
+static struct resource spi_sh_sci_resources[] = {
+        {
+                .start  = 0xffe00000,
+                .end    = 0xffe0001f,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device spi_sh_sci_device  = {
+        .name           = "spi_sh_sci",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(spi_sh_sci_resources),
+        .resource       = spi_sh_sci_resources,
+        .dev    = {
+                .platform_data  = &spi_info,
+        },
+};
+
+static struct resource heartbeat_resources[] = {
+        [0] = {
+                .start  = PA_OUTPORT,
+                .end    = PA_OUTPORT,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device heartbeat_device = {
+        .name           = "heartbeat",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(heartbeat_resources),
+        .resource       = heartbeat_resources,
+};
+
+static struct resource sm501_resources[] = {
+        [0]     = {
+                .start  = 0x10000000,
+                .end    = 0x13e00000 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1]     = {
+                .start  = 0x13e00000,
+                .end    = 0x13ffffff,
+                .flags  = IORESOURCE_MEM,
+        },
+        [2]     = {
+                .start  = IRQ_VOYAGER,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct fb_videomode sm501_default_mode = {
+        .pixclock       = 35714,
+        .xres           = 640,
+        .yres           = 480,
+        .left_margin    = 105,
+        .right_margin   = 50,
+        .upper_margin   = 35,
+        .lower_margin   = 0,
+        .hsync_len      = 96,
+        .vsync_len      = 2,
+        .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct sm501_platdata_fbsub sm501_pdata_fbsub_pnl = {
+        .def_bpp        = 16,
+        .def_mode       = &sm501_default_mode,
+        .flags          = SM501FB_FLAG_USE_INIT_MODE |
+                          SM501FB_FLAG_USE_HWCURSOR |
+                          SM501FB_FLAG_USE_HWACCEL |
+                          SM501FB_FLAG_DISABLE_AT_EXIT,
+};
+
+static struct sm501_platdata_fbsub sm501_pdata_fbsub_crt = {
+        .flags          = (SM501FB_FLAG_USE_INIT_MODE |
+                           SM501FB_FLAG_USE_HWCURSOR |
+                           SM501FB_FLAG_USE_HWACCEL |
+                           SM501FB_FLAG_DISABLE_AT_EXIT),
+
+};
+
+static struct sm501_platdata_fb sm501_fb_pdata = {
+        .fb_route       = SM501_FB_OWN,
+        .fb_crt         = &sm501_pdata_fbsub_crt,
+        .fb_pnl         = &sm501_pdata_fbsub_pnl,
+        .flags          = SM501_FBPD_SWAP_FB_ENDIAN,
+};
+
+static struct sm501_initdata sm501_initdata = {
+        .devices        = SM501_USE_USB_HOST | SM501_USE_UART0,
+};
+
+static struct sm501_platdata sm501_platform_data = {
+        .init           = &sm501_initdata,
+        .fb             = &sm501_fb_pdata,
+};
+
+static struct platform_device sm501_device = {
+        .name           = "sm501",
+        .id             = -1,
+        .dev            = {
+                .platform_data  = &sm501_platform_data,
+        },
+        .num_resources  = ARRAY_SIZE(sm501_resources),
+        .resource       = sm501_resources,
+};
+
+static struct platform_device *rts7751r2d_devices[] __initdata = {
+        &sm501_device,
+        &heartbeat_device,
+        &spi_sh_sci_device,
+};
+
+/*
+ * The CF is connected with a 16-bit bus where 8-bit operations are
+ * unsupported. The linux ata driver is however using 8-bit operations, so
+ * insert a trapped io filter to convert 8-bit operations into 16-bit.
+ */
+static struct trapped_io cf_trapped_io = {
+        .resource               = cf_ide_resources,
+        .num_resources          = 2,
+        .minimum_bus_width      = 16,
+};
+
+static int __init rts7751r2d_devices_setup(void)
+{
+        if (register_trapped_io(&cf_trapped_io) == 0)
+                platform_device_register(&cf_ide_device);
+
+        spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
+
+        return platform_add_devices(rts7751r2d_devices,
+                                    ARRAY_SIZE(rts7751r2d_devices));
+}
+__initcall(rts7751r2d_devices_setup);
+
+static void rts7751r2d_power_off(void)
+{
+        ctrl_outw(0x0001, PA_POWOFF);
+}
+
+/*
+ * Initialize the board
+ */
+static void __init rts7751r2d_setup(char **cmdline_p)
+{
+        void __iomem *sm501_reg;
+        u16 ver = ctrl_inw(PA_VERREG);
+
+        printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
+
+        printk(KERN_INFO "FPGA version:%d (revision:%d)\n",
+                                        (ver >> 4) & 0xf, ver & 0xf);
+
+        ctrl_outw(0x0000, PA_OUTPORT);
+        pm_power_off = rts7751r2d_power_off;
+
+        /* sm501 dram configuration:
+         * ColSizeX = 11 - External Memory Column Size: 256 words.
+         * APX = 1 - External Memory Active to Pre-Charge Delay: 7 clocks.
+         * RstX = 1 - External Memory Reset: Normal.
+         * Rfsh = 1 - Local Memory Refresh to Command Delay: 12 clocks.
+         * BwC =  1 - Local Memory Block Write Cycle Time: 2 clocks.
+         * BwP =  1 - Local Memory Block Write to Pre-Charge Delay: 1 clock.
+         * AP = 1 - Internal Memory Active to Pre-Charge Delay: 7 clocks.
+         * Rst = 1 - Internal Memory Reset: Normal.
+         * RA = 1 - Internal Memory Remain in Active State: Do not remain.
+         */
+
+        sm501_reg = (void __iomem *)0xb3e00000 + SM501_DRAM_CONTROL;
+        writel(readl(sm501_reg) | 0x00f107c0, sm501_reg);
+}
+
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_rts7751r2d __initmv = {
+        .mv_name                = "RTS7751R2D",
+        .mv_setup               = rts7751r2d_setup,
+        .mv_init_irq            = init_rts7751r2d_IRQ,
+        .mv_irq_demux           = rts7751r2d_irq_demux,
+};