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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2011-11-11 06:46:45 +0400
committerPaul Mundt <lethal@linux-sh.org>2011-11-11 11:56:25 +0400
commitd55c9a97f80a7ad64f7c7eab5fb447a8d9a1532a (patch)
tree7a5dd9b45b6527af850772ddcec1c6e6b29a08d7 /arch/arm/mach-shmobile/board-bonito.c
parent215d6cc9230c2a42a643c4cd296680040eeb1f49 (diff)
downloadlinux-d55c9a97f80a7ad64f7c7eab5fb447a8d9a1532a.tar.xz
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>
Diffstat (limited to 'arch/arm/mach-shmobile/board-bonito.c')
-rw-r--r--arch/arm/mach-shmobile/board-bonito.c187
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
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+/*
+ * 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