ARM: mach-shmobile: add bonito board support.

This adds basic bonito board (R-Mobile A1) support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 187 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/board-bonito.c b/arch/arm/mach-shmobile/board-bonito.c
new file mode 100644
index 000000000000..901d7457973a
--- /dev/null
+++ b/arch/arm/mach-shmobile/board-bonito.c
@@ -0,0 +1,187 @@
+/*
+ * bonito board support
+ *
+ * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2011 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * 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; version 2 of the License.
+ *
+ * This program is distributed in the hope that 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <mach/common.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <asm/hardware/cache-l2x0.h>
+#include <mach/r8a7740.h>
+
+/*
+ * CS   Address         device                  note
+ *----------------------------------------------------------------
+ * 0    0x0000_0000     NOR Flash (64MB)        SW12 : bit3 = OFF
+ * 2    0x0800_0000     ExtNOR (64MB)           SW12 : bit3 = OFF
+ * 4                    -
+ * 5A                   -
+ * 5B   0x1600_0000     SRAM (8MB)
+ * 6    0x1800_0000     FPGA (64K)
+ *      0x1801_0000     Ether (4KB)
+ *      0x1801_1000     USB (4KB)
+ */
+
+/*
+ * SW12
+ *
+ *      bit1                    bit2                    bit3
+ *----------------------------------------------------------------------------
+ * ON   NOR WriteProtect        NAND WriteProtect       CS0 ExtNOR / CS2 NOR
+ * OFF  NOR Not WriteProtect    NAND Not WriteProtect   CS0 NOR    / CS2 ExtNOR
+ */
+
+/*
+ * FPGA
+ */
+#define A1MDSR          0x10E0
+#define BVERR           0x1100
+static u16 bonito_fpga_read(u32 offset)
+{
+        return __raw_readw(0xf0003000 + offset);
+}
+
+static void bonito_fpga_write(u32 offset, u16 val)
+{
+        __raw_writew(val, 0xf0003000 + offset);
+}
+
+/*
+ * devices
+ */
+static struct platform_device *bonito_devices[] __initdata = {
+};
+
+/*
+ * map I/O
+ */
+static struct map_desc bonito_io_desc[] __initdata = {
+         /*
+          * for CPGA/INTC/PFC
+          * 0xe6000000-0xefffffff -> 0xe6000000-0xefffffff
+          */
+        {
+                .virtual        = 0xe6000000,
+                .pfn            = __phys_to_pfn(0xe6000000),
+                .length         = 160 << 20,
+                .type           = MT_DEVICE_NONSHARED
+        },
+#ifdef CONFIG_CACHE_L2X0
+        /*
+         * for l2x0_init()
+         * 0xf0100000-0xf0101000 -> 0xf0002000-0xf0003000
+         */
+        {
+                .virtual        = 0xf0002000,
+                .pfn            = __phys_to_pfn(0xf0100000),
+                .length         = PAGE_SIZE,
+                .type           = MT_DEVICE_NONSHARED
+        },
+#endif
+        /*
+         * for FPGA (0x1800000-0x19ffffff)
+         * 0x18000000-0x18002000 -> 0xf0003000-0xf0005000
+         */
+        {
+                .virtual        = 0xf0003000,
+                .pfn            = __phys_to_pfn(0x18000000),
+                .length         = PAGE_SIZE * 2,
+                .type           = MT_DEVICE_NONSHARED
+        }
+};
+
+static void __init bonito_map_io(void)
+{
+        iotable_init(bonito_io_desc, ARRAY_SIZE(bonito_io_desc));
+
+        /* setup early devices and console here as well */
+        r8a7740_add_early_devices();
+        shmobile_setup_console();
+}
+
+/*
+ * board init
+ */
+static void __init bonito_init(void)
+{
+        u16 val;
+
+        r8a7740_pinmux_init();
+
+        /* FPGA */
+        gpio_request(GPIO_FN_CS5B, NULL);
+        gpio_request(GPIO_FN_CS6A, NULL);
+        gpio_request(GPIO_FN_CS5A_PORT105,  NULL);
+        gpio_request(GPIO_FN_IRQ10, NULL);
+
+        val = bonito_fpga_read(BVERR);
+        pr_info("bonito version: cpu %02x, base %02x\n",
+                ((val >> 8) & 0xFF),
+                ((val >> 0) & 0xFF));
+
+        /* SCIFA5 */
+        gpio_request(GPIO_FN_SCIFA5_TXD_PORT91, NULL);
+        gpio_request(GPIO_FN_SCIFA5_RXD_PORT92, NULL);
+
+#ifdef CONFIG_CACHE_L2X0
+        /* Early BRESP enable, Shared attribute override enable, 32K*8way */
+        l2x0_init(__io(0xf0002000), 0x40440000, 0x82000fff);
+#endif
+
+        r8a7740_add_standard_devices();
+        platform_add_devices(bonito_devices, ARRAY_SIZE(bonito_devices));
+}
+
+static void __init bonito_timer_init(void)
+{
+        u16 val;
+        u8 md_ck = 0;
+
+        /* read MD_CK value */
+        val = bonito_fpga_read(A1MDSR);
+        if (val & (1 << 10))
+                md_ck |= MD_CK2;
+        if (val & (1 << 9))
+                md_ck |= MD_CK1;
+        if (val & (1 << 8))
+                md_ck |= MD_CK0;
+
+        r8a7740_clock_init(md_ck);
+        shmobile_timer.init();
+}
+
+struct sys_timer bonito_timer = {
+        .init   = bonito_timer_init,
+};
+
+MACHINE_START(BONITO, "bonito")
+        .map_io         = bonito_map_io,
+        .init_irq       = r8a7740_init_irq,
+        .handle_irq     = shmobile_handle_irq_intc,
+        .init_machine   = bonito_init,
+        .timer          = &bonito_timer,
+MACHINE_END