diff options
Diffstat (limited to 'arch/arm/mach-shmobile/board-bonito.c')
-rw-r--r-- | arch/arm/mach-shmobile/board-bonito.c | 522 |
1 files changed, 522 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..4d2201622323 --- /dev/null +++ b/arch/arm/mach-shmobile/board-bonito.c @@ -0,0 +1,522 @@ +/* + * 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/i2c.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/platform_device.h> +#include <linux/gpio.h> +#include <linux/smsc911x.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> +#include <video/sh_mobile_lcdc.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 + */ + +/* + * SCIFA5 (CN42) + * + * S38.3 = ON + * S39.6 = ON + * S43.1 = ON + */ + +/* + * LCDC0 (CN3/CN4/CN7) + * + * S38.1 = OFF + * S38.2 = OFF + */ + +/* + * FPGA + */ +#define IRQSR0 0x0020 +#define IRQSR1 0x0022 +#define IRQMR0 0x0030 +#define IRQMR1 0x0032 +#define BUSSWMR1 0x0070 +#define BUSSWMR2 0x0072 +#define BUSSWMR3 0x0074 +#define BUSSWMR4 0x0076 + +#define LCDCR 0x10B4 +#define DEVRSTCR1 0x10D0 +#define DEVRSTCR2 0x10D2 +#define A1MDSR 0x10E0 +#define BVERR 0x1100 + +/* FPGA IRQ */ +#define FPGA_IRQ_BASE (512) +#define FPGA_IRQ0 (FPGA_IRQ_BASE) +#define FPGA_IRQ1 (FPGA_IRQ_BASE + 16) +#define FPGA_ETH_IRQ (FPGA_IRQ0 + 15) +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); +} + +static void bonito_fpga_irq_disable(struct irq_data *data) +{ + unsigned int irq = data->irq; + u32 addr = (irq < 1016) ? IRQMR0 : IRQMR1; + int shift = irq % 16; + + bonito_fpga_write(addr, bonito_fpga_read(addr) | (1 << shift)); +} + +static void bonito_fpga_irq_enable(struct irq_data *data) +{ + unsigned int irq = data->irq; + u32 addr = (irq < 1016) ? IRQMR0 : IRQMR1; + int shift = irq % 16; + + bonito_fpga_write(addr, bonito_fpga_read(addr) & ~(1 << shift)); +} + +static struct irq_chip bonito_fpga_irq_chip __read_mostly = { + .name = "bonito FPGA", + .irq_mask = bonito_fpga_irq_disable, + .irq_unmask = bonito_fpga_irq_enable, +}; + +static void bonito_fpga_irq_demux(unsigned int irq, struct irq_desc *desc) +{ + u32 val = bonito_fpga_read(IRQSR1) << 16 | + bonito_fpga_read(IRQSR0); + u32 mask = bonito_fpga_read(IRQMR1) << 16 | + bonito_fpga_read(IRQMR0); + + int i; + + val &= ~mask; + + for (i = 0; i < 32; i++) { + if (!(val & (1 << i))) + continue; + + generic_handle_irq(FPGA_IRQ_BASE + i); + } +} + +static void bonito_fpga_init(void) +{ + int i; + + bonito_fpga_write(IRQMR0, 0xffff); /* mask all */ + bonito_fpga_write(IRQMR1, 0xffff); /* mask all */ + + /* Device reset */ + bonito_fpga_write(DEVRSTCR1, + (1 << 2)); /* Eth */ + + /* FPGA irq require special handling */ + for (i = FPGA_IRQ_BASE; i < FPGA_IRQ_BASE + 32; i++) { + irq_set_chip_and_handler_name(i, &bonito_fpga_irq_chip, + handle_level_irq, "level"); + set_irq_flags(i, IRQF_VALID); /* yuck */ + } + + irq_set_chained_handler(evt2irq(0x0340), bonito_fpga_irq_demux); + irq_set_irq_type(evt2irq(0x0340), IRQ_TYPE_LEVEL_LOW); +} + +/* +* PMIC settings +* +* FIXME +* +* bonito board needs some settings by pmic which use i2c access. +* pmic settings use device_initcall() here for use it. +*/ +static __u8 *pmic_settings = NULL; +static __u8 pmic_do_2A[] = { + 0x1C, 0x09, + 0x1A, 0x80, + 0xff, 0xff, +}; + +static int __init pmic_init(void) +{ + struct i2c_adapter *a = i2c_get_adapter(0); + struct i2c_msg msg; + __u8 buf[2]; + int i, ret; + + if (!pmic_settings) + return 0; + if (!a) + return 0; + + msg.addr = 0x46; + msg.buf = buf; + msg.len = 2; + msg.flags = 0; + + for (i = 0; ; i += 2) { + buf[0] = pmic_settings[i + 0]; + buf[1] = pmic_settings[i + 1]; + + if ((0xff == buf[0]) && (0xff == buf[1])) + break; + + ret = i2c_transfer(a, &msg, 1); + if (ret < 0) { + pr_err("i2c transfer fail\n"); + break; + } + } + + return 0; +} +device_initcall(pmic_init); + +/* + * LCDC0 + */ +static const struct fb_videomode lcdc0_mode = { + .name = "WVGA Panel", + .xres = 800, + .yres = 480, + .left_margin = 88, + .right_margin = 40, + .hsync_len = 128, + .upper_margin = 20, + .lower_margin = 5, + .vsync_len = 5, + .sync = 0, +}; + +static struct sh_mobile_lcdc_info lcdc0_info = { + .clock_source = LCDC_CLK_BUS, + .ch[0] = { + .chan = LCDC_CHAN_MAINLCD, + .bpp = 16, + .interface_type = RGB24, + .clock_divider = 5, + .flags = 0, + .lcd_cfg = &lcdc0_mode, + .num_cfg = 1, + .lcd_size_cfg = { + .width = 152, + .height = 91, + }, + }, +}; + +static struct resource lcdc0_resources[] = { + [0] = { + .name = "LCDC0", + .start = 0xfe940000, + .end = 0xfe943fff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = intcs_evt2irq(0x0580), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device lcdc0_device = { + .name = "sh_mobile_lcdc_fb", + .id = 0, + .resource = lcdc0_resources, + .num_resources = ARRAY_SIZE(lcdc0_resources), + .dev = { + .platform_data = &lcdc0_info, + .coherent_dma_mask = ~0, + }, +}; + +/* + * SMSC 9221 + */ +static struct resource smsc_resources[] = { + [0] = { + .start = 0x18010000, + .end = 0x18011000 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = FPGA_ETH_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct smsc911x_platform_config smsc_platdata = { + .flags = SMSC911X_USE_16BIT, + .phy_interface = PHY_INTERFACE_MODE_MII, + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, +}; + +static struct platform_device smsc_device = { + .name = "smsc911x", + .dev = { + .platform_data = &smsc_platdata, + }, + .resource = smsc_resources, + .num_resources = ARRAY_SIZE(smsc_resources), +}; + +/* + * core board devices + */ +static struct platform_device *bonito_core_devices[] __initdata = { +}; + +/* + * base board devices + */ +static struct platform_device *bonito_base_devices[] __initdata = { + &lcdc0_device, + &smsc_device, +}; + +/* + * 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 + */ +#define BIT_ON(sw, bit) (sw & (1 << bit)) +#define BIT_OFF(sw, bit) (!(sw & (1 << bit))) + +#define VCCQ1CR 0xE6058140 +#define VCCQ1LCDCR 0xE6058186 + +static void __init bonito_init(void) +{ + u16 val; + + r8a7740_pinmux_init(); + bonito_fpga_init(); + + pmic_settings = pmic_do_2A; + + /* + * core board settings + */ + +#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_core_devices, + ARRAY_SIZE(bonito_core_devices)); + + /* + * base board settings + */ + gpio_request(GPIO_PORT176, NULL); + gpio_direction_input(GPIO_PORT176); + if (!gpio_get_value(GPIO_PORT176)) { + u16 bsw2; + u16 bsw3; + u16 bsw4; + + /* + * 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)); + + bsw2 = bonito_fpga_read(BUSSWMR2); + bsw3 = bonito_fpga_read(BUSSWMR3); + bsw4 = bonito_fpga_read(BUSSWMR4); + + /* + * SCIFA5 (CN42) + */ + if (BIT_OFF(bsw2, 1) && /* S38.3 = ON */ + BIT_OFF(bsw3, 9) && /* S39.6 = ON */ + BIT_OFF(bsw4, 4)) { /* S43.1 = ON */ + gpio_request(GPIO_FN_SCIFA5_TXD_PORT91, NULL); + gpio_request(GPIO_FN_SCIFA5_RXD_PORT92, NULL); + } + + /* + * LCDC0 (CN3) + */ + if (BIT_ON(bsw2, 3) && /* S38.1 = OFF */ + BIT_ON(bsw2, 2)) { /* S38.2 = OFF */ + gpio_request(GPIO_FN_LCDC0_SELECT, NULL); + gpio_request(GPIO_FN_LCD0_D0, NULL); + gpio_request(GPIO_FN_LCD0_D1, NULL); + gpio_request(GPIO_FN_LCD0_D2, NULL); + gpio_request(GPIO_FN_LCD0_D3, NULL); + gpio_request(GPIO_FN_LCD0_D4, NULL); + gpio_request(GPIO_FN_LCD0_D5, NULL); + gpio_request(GPIO_FN_LCD0_D6, NULL); + gpio_request(GPIO_FN_LCD0_D7, NULL); + gpio_request(GPIO_FN_LCD0_D8, NULL); + gpio_request(GPIO_FN_LCD0_D9, NULL); + gpio_request(GPIO_FN_LCD0_D10, NULL); + gpio_request(GPIO_FN_LCD0_D11, NULL); + gpio_request(GPIO_FN_LCD0_D12, NULL); + gpio_request(GPIO_FN_LCD0_D13, NULL); + gpio_request(GPIO_FN_LCD0_D14, NULL); + gpio_request(GPIO_FN_LCD0_D15, NULL); + gpio_request(GPIO_FN_LCD0_D16, NULL); + gpio_request(GPIO_FN_LCD0_D17, NULL); + gpio_request(GPIO_FN_LCD0_D18_PORT163, NULL); + gpio_request(GPIO_FN_LCD0_D19_PORT162, NULL); + gpio_request(GPIO_FN_LCD0_D20_PORT161, NULL); + gpio_request(GPIO_FN_LCD0_D21_PORT158, NULL); + gpio_request(GPIO_FN_LCD0_D22_PORT160, NULL); + gpio_request(GPIO_FN_LCD0_D23_PORT159, NULL); + gpio_request(GPIO_FN_LCD0_DCK, NULL); + gpio_request(GPIO_FN_LCD0_VSYN, NULL); + gpio_request(GPIO_FN_LCD0_HSYN, NULL); + gpio_request(GPIO_FN_LCD0_DISP, NULL); + gpio_request(GPIO_FN_LCD0_LCLK_PORT165, NULL); + + gpio_request(GPIO_PORT61, NULL); /* LCDDON */ + gpio_direction_output(GPIO_PORT61, 1); + + /* backlight on */ + bonito_fpga_write(LCDCR, 1); + + /* drivability Max */ + __raw_writew(0x00FF , VCCQ1LCDCR); + __raw_writew(0xFFFF , VCCQ1CR); + } + + platform_add_devices(bonito_base_devices, + ARRAY_SIZE(bonito_base_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 |