diff options
Diffstat (limited to 'arch/arm/mach-mmp/ttc_dkb.c')
-rw-r--r-- | arch/arm/mach-mmp/ttc_dkb.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/ttc_dkb.c b/arch/arm/mach-mmp/ttc_dkb.c new file mode 100644 index 00000000..3fc9ed21 --- /dev/null +++ b/arch/arm/mach-mmp/ttc_dkb.c @@ -0,0 +1,166 @@ +/* + * linux/arch/arm/mach-mmp/ttc_dkb.c + * + * Support for the Marvell PXA910-based TTC_DKB Development Platform. + * + * 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 + * publishhed by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/onenand.h> +#include <linux/interrupt.h> +#include <linux/i2c/pca953x.h> +#include <linux/gpio.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> +#include <mach/addr-map.h> +#include <mach/mfp-pxa910.h> +#include <mach/pxa910.h> +#include <mach/irqs.h> + +#include "common.h" + +#define TTCDKB_GPIO_EXT0(x) (MMP_NR_BUILTIN_GPIO + ((x < 0) ? 0 : \ + ((x < 16) ? x : 15))) +#define TTCDKB_GPIO_EXT1(x) (MMP_NR_BUILTIN_GPIO + 16 + ((x < 0) ? 0 : \ + ((x < 16) ? x : 15))) + +/* + * 16 board interrupts -- MAX7312 GPIO expander + * 16 board interrupts -- PCA9575 GPIO expander + * 24 board interrupts -- 88PM860x PMIC + */ +#define TTCDKB_NR_IRQS (MMP_NR_IRQS + 16 + 16 + 24) + +static unsigned long ttc_dkb_pin_config[] __initdata = { + /* UART2 */ + GPIO47_UART2_RXD, + GPIO48_UART2_TXD, + + /* DFI */ + DF_IO0_ND_IO0, + DF_IO1_ND_IO1, + DF_IO2_ND_IO2, + DF_IO3_ND_IO3, + DF_IO4_ND_IO4, + DF_IO5_ND_IO5, + DF_IO6_ND_IO6, + DF_IO7_ND_IO7, + DF_IO8_ND_IO8, + DF_IO9_ND_IO9, + DF_IO10_ND_IO10, + DF_IO11_ND_IO11, + DF_IO12_ND_IO12, + DF_IO13_ND_IO13, + DF_IO14_ND_IO14, + DF_IO15_ND_IO15, + DF_nCS0_SM_nCS2_nCS0, + DF_ALE_SM_WEn_ND_ALE, + DF_CLE_SM_OEn_ND_CLE, + DF_WEn_DF_WEn, + DF_REn_DF_REn, + DF_RDY0_DF_RDY0, +}; + +static struct mtd_partition ttc_dkb_onenand_partitions[] = { + { + .name = "bootloader", + .offset = 0, + .size = SZ_1M, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "reserved", + .offset = MTDPART_OFS_APPEND, + .size = SZ_128K, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "reserved", + .offset = MTDPART_OFS_APPEND, + .size = SZ_8M, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = (SZ_2M + SZ_1M), + .mask_flags = 0, + }, { + .name = "filesystem", + .offset = MTDPART_OFS_APPEND, + .size = SZ_32M + SZ_16M, + .mask_flags = 0, + } +}; + +static struct onenand_platform_data ttc_dkb_onenand_info = { + .parts = ttc_dkb_onenand_partitions, + .nr_parts = ARRAY_SIZE(ttc_dkb_onenand_partitions), +}; + +static struct resource ttc_dkb_resource_onenand[] = { + [0] = { + .start = SMC_CS0_PHYS_BASE, + .end = SMC_CS0_PHYS_BASE + SZ_1M, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device ttc_dkb_device_onenand = { + .name = "onenand-flash", + .id = -1, + .resource = ttc_dkb_resource_onenand, + .num_resources = ARRAY_SIZE(ttc_dkb_resource_onenand), + .dev = { + .platform_data = &ttc_dkb_onenand_info, + }, +}; + +static struct platform_device *ttc_dkb_devices[] = { + &pxa910_device_gpio, + &pxa910_device_rtc, + &ttc_dkb_device_onenand, +}; + +static struct pca953x_platform_data max7312_data[] = { + { + .gpio_base = TTCDKB_GPIO_EXT0(0), + .irq_base = MMP_NR_IRQS, + }, +}; + +static struct i2c_board_info ttc_dkb_i2c_info[] = { + { + .type = "max7312", + .addr = 0x23, + .irq = MMP_GPIO_TO_IRQ(80), + .platform_data = &max7312_data, + }, +}; + +static void __init ttc_dkb_init(void) +{ + mfp_config(ARRAY_AND_SIZE(ttc_dkb_pin_config)); + + /* on-chip devices */ + pxa910_add_uart(1); + + /* off-chip devices */ + pxa910_add_twsi(0, NULL, ARRAY_AND_SIZE(ttc_dkb_i2c_info)); + platform_add_devices(ARRAY_AND_SIZE(ttc_dkb_devices)); +} + +MACHINE_START(TTC_DKB, "PXA910-based TTC_DKB Development Platform") + .map_io = mmp_map_io, + .nr_irqs = TTCDKB_NR_IRQS, + .init_irq = pxa910_init_irq, + .timer = &pxa910_timer, + .init_machine = ttc_dkb_init, + .restart = mmp_restart, +MACHINE_END |