diff options
Diffstat (limited to 'arch/arm/mach-ux500/board-mop500.c')
| -rw-r--r-- | arch/arm/mach-ux500/board-mop500.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c new file mode 100644 index 000000000000..aa5afbcc90f9 --- /dev/null +++ b/arch/arm/mach-ux500/board-mop500.c @@ -0,0 +1,158 @@ +/* + * Copyright (C) 2008-2009 ST-Ericsson + * + * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2, as + * published by the Free Software Foundation. + * + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/amba/bus.h> +#include <linux/amba/pl022.h> +#include <linux/spi/spi.h> + +#include <asm/localtimer.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> + +#include <plat/mtu.h> + +#include <mach/hardware.h> +#include <mach/setup.h> + +#define __MEM_4K_RESOURCE(x) \ + .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM} + +/* These are active devices on this board */ +static struct amba_device uart0_device = { + .dev = { .init_name = "uart0" }, + __MEM_4K_RESOURCE(U8500_UART0_BASE), + .irq = {IRQ_UART0, NO_IRQ}, +}; + +static struct amba_device uart1_device = { + .dev = { .init_name = "uart1" }, + __MEM_4K_RESOURCE(U8500_UART1_BASE), + .irq = {IRQ_UART1, NO_IRQ}, +}; + +static struct amba_device uart2_device = { + .dev = { .init_name = "uart2" }, + __MEM_4K_RESOURCE(U8500_UART2_BASE), + .irq = {IRQ_UART2, NO_IRQ}, +}; + +static void ab4500_spi_cs_control(u32 command) +{ + /* set the FRM signal, which is CS - TODO */ +} + +struct pl022_config_chip ab4500_chip_info = { + .lbm = LOOPBACK_DISABLED, + .com_mode = INTERRUPT_TRANSFER, + .iface = SSP_INTERFACE_MOTOROLA_SPI, + /* we can act as master only */ + .hierarchy = SSP_MASTER, + .slave_tx_disable = 0, + .endian_rx = SSP_RX_MSB, + .endian_tx = SSP_TX_MSB, + .data_size = SSP_DATA_BITS_24, + .rx_lev_trig = SSP_RX_1_OR_MORE_ELEM, + .tx_lev_trig = SSP_TX_1_OR_MORE_EMPTY_LOC, + .clk_phase = SSP_CLK_SECOND_EDGE, + .clk_pol = SSP_CLK_POL_IDLE_HIGH, + .cs_control = ab4500_spi_cs_control, +}; + +static struct spi_board_info u8500_spi_devices[] = { + { + .modalias = "ab4500", + .controller_data = &ab4500_chip_info, + .max_speed_hz = 12000000, + .bus_num = 0, + .chip_select = 0, + .mode = SPI_MODE_0, + .irq = IRQ_AB4500, + }, +}; + +static struct pl022_ssp_controller ssp0_platform_data = { + .bus_id = 0, + /* pl022 not yet supports dma */ + .enable_dma = 0, + /* on this platform, gpio 31,142,144,214 & + * 224 are connected as chip selects + */ + .num_chipselect = 5, +}; + +static struct amba_device pl022_device = { + .dev = { + .coherent_dma_mask = ~0, + .init_name = "pl022", + .platform_data = &ssp0_platform_data, + }, + .res = { + .start = U8500_SSP0_BASE, + .end = U8500_SSP0_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + .irq = {IRQ_SSP0, NO_IRQ }, + /* ST-Ericsson modified id */ + .periphid = SSP_PER_ID, +}; + +static struct amba_device *amba_devs[] __initdata = { + &uart0_device, + &uart1_device, + &uart2_device, + &pl022_device, +}; + +static void __init u8500_timer_init(void) +{ +#ifdef CONFIG_LOCAL_TIMERS + /* Setup the local timer base */ + twd_base = __io_address(U8500_TWD_BASE); +#endif + /* Setup the MTU base */ + mtu_base = __io_address(U8500_MTU0_BASE); + + nmdk_timer_init(); +} + +static struct sys_timer u8500_timer = { + .init = u8500_timer_init, +}; + +static void __init u8500_init_machine(void) +{ + int i; + + /* Register the active AMBA devices on this board */ + for (i = 0; i < ARRAY_SIZE(amba_devs); i++) + amba_device_register(amba_devs[i], &iomem_resource); + + spi_register_board_info(u8500_spi_devices, + ARRAY_SIZE(u8500_spi_devices)); + + u8500_init_devices(); +} + +MACHINE_START(U8500, "ST-Ericsson MOP500 platform") + /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */ + .phys_io = U8500_UART2_BASE, + .io_pg_offst = (IO_ADDRESS(U8500_UART2_BASE) >> 18) & 0xfffc, + .boot_params = 0x100, + .map_io = u8500_map_io, + .init_irq = u8500_init_irq, + /* we re-use nomadik timer here */ + .timer = &u8500_timer, + .init_machine = u8500_init_machine, +MACHINE_END |