316 lines
7.4 KiB
C
316 lines
7.4 KiB
C
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/*
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* linux/arch/arm/mach-mmp/ttc_dkb.c
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*
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* Support for the Marvell PXA910-based TTC_DKB Development Platform.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* publishhed by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/onenand.h>
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#include <linux/interrupt.h>
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#include <linux/platform_data/pca953x.h>
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#include <linux/gpio.h>
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#include <linux/gpio-pxa.h>
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#include <linux/mfd/88pm860x.h>
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#include <linux/platform_data/mv_usb.h>
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#include <linux/spi/spi.h>
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#include <linux/delay.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include "addr-map.h"
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#include "mfp-pxa910.h"
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#include "pxa910.h"
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#include "irqs.h"
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#include "regs-usb.h"
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#include "common.h"
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#define TTCDKB_GPIO_EXT0(x) (MMP_NR_BUILTIN_GPIO + ((x < 0) ? 0 : \
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((x < 16) ? x : 15)))
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#define TTCDKB_GPIO_EXT1(x) (MMP_NR_BUILTIN_GPIO + 16 + ((x < 0) ? 0 : \
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((x < 16) ? x : 15)))
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/*
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* 16 board interrupts -- MAX7312 GPIO expander
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* 16 board interrupts -- PCA9575 GPIO expander
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* 24 board interrupts -- 88PM860x PMIC
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*/
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#define TTCDKB_NR_IRQS (MMP_NR_IRQS + 16 + 16 + 24)
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static unsigned long ttc_dkb_pin_config[] __initdata = {
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/* UART2 */
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GPIO47_UART2_RXD,
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GPIO48_UART2_TXD,
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/* DFI */
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DF_IO0_ND_IO0,
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DF_IO1_ND_IO1,
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DF_IO2_ND_IO2,
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DF_IO3_ND_IO3,
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DF_IO4_ND_IO4,
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DF_IO5_ND_IO5,
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DF_IO6_ND_IO6,
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DF_IO7_ND_IO7,
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DF_IO8_ND_IO8,
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DF_IO9_ND_IO9,
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DF_IO10_ND_IO10,
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DF_IO11_ND_IO11,
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DF_IO12_ND_IO12,
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DF_IO13_ND_IO13,
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DF_IO14_ND_IO14,
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DF_IO15_ND_IO15,
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DF_nCS0_SM_nCS2_nCS0,
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DF_ALE_SM_WEn_ND_ALE,
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DF_CLE_SM_OEn_ND_CLE,
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DF_WEn_DF_WEn,
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DF_REn_DF_REn,
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DF_RDY0_DF_RDY0,
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};
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static struct pxa_gpio_platform_data pxa910_gpio_pdata = {
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.irq_base = MMP_GPIO_TO_IRQ(0),
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};
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static struct mtd_partition ttc_dkb_onenand_partitions[] = {
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{
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.name = "bootloader",
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.offset = 0,
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.size = SZ_1M,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "reserved",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_128K,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "reserved",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_8M,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = (SZ_2M + SZ_1M),
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.mask_flags = 0,
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}, {
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.name = "filesystem",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_32M + SZ_16M,
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.mask_flags = 0,
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}
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};
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static struct onenand_platform_data ttc_dkb_onenand_info = {
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.parts = ttc_dkb_onenand_partitions,
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.nr_parts = ARRAY_SIZE(ttc_dkb_onenand_partitions),
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};
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static struct resource ttc_dkb_resource_onenand[] = {
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[0] = {
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.start = SMC_CS0_PHYS_BASE,
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.end = SMC_CS0_PHYS_BASE + SZ_1M,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device ttc_dkb_device_onenand = {
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.name = "onenand-flash",
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.id = -1,
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.resource = ttc_dkb_resource_onenand,
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.num_resources = ARRAY_SIZE(ttc_dkb_resource_onenand),
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.dev = {
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.platform_data = &ttc_dkb_onenand_info,
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},
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};
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static struct platform_device *ttc_dkb_devices[] = {
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&pxa910_device_gpio,
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&pxa910_device_rtc,
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&ttc_dkb_device_onenand,
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};
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static struct pca953x_platform_data max7312_data[] = {
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{
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.gpio_base = TTCDKB_GPIO_EXT0(0),
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.irq_base = MMP_NR_IRQS,
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},
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};
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static struct pm860x_platform_data ttc_dkb_pm8607_info = {
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.irq_base = IRQ_BOARD_START,
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};
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static struct i2c_board_info ttc_dkb_i2c_info[] = {
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{
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.type = "88PM860x",
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.addr = 0x34,
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.platform_data = &ttc_dkb_pm8607_info,
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.irq = IRQ_PXA910_PMIC_INT,
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},
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{
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.type = "max7312",
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.addr = 0x23,
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.irq = MMP_GPIO_TO_IRQ(80),
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.platform_data = &max7312_data,
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},
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};
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#if IS_ENABLED(CONFIG_USB_SUPPORT)
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#if IS_ENABLED(CONFIG_USB_MV_UDC) || IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
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static struct mv_usb_platform_data ttc_usb_pdata = {
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.vbus = NULL,
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.mode = MV_USB_MODE_OTG,
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.otg_force_a_bus_req = 1,
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.phy_init = pxa_usb_phy_init,
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.phy_deinit = pxa_usb_phy_deinit,
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.set_vbus = NULL,
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};
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#endif
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#endif
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#if IS_ENABLED(CONFIG_MTD_NAND_PXA3xx)
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static struct pxa3xx_nand_platform_data dkb_nand_info = {
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.enable_arbiter = 1,
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.num_cs = 1,
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};
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#endif
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#if IS_ENABLED(CONFIG_MMP_DISP)
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/* path config */
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#define CFG_IOPADMODE(iopad) (iopad) /* 0x0 ~ 0xd */
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#define SCLK_SOURCE_SELECT(x) (x << 30) /* 0x0 ~ 0x3 */
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/* link config */
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#define CFG_DUMBMODE(mode) (mode << 28) /* 0x0 ~ 0x6*/
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static struct mmp_mach_path_config dkb_disp_config[] = {
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[0] = {
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.name = "mmp-parallel",
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.overlay_num = 2,
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.output_type = PATH_OUT_PARALLEL,
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.path_config = CFG_IOPADMODE(0x1)
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| SCLK_SOURCE_SELECT(0x1),
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.link_config = CFG_DUMBMODE(0x2),
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},
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};
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static struct mmp_mach_plat_info dkb_disp_info = {
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.name = "mmp-disp",
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.clk_name = "disp0",
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.path_num = 1,
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.paths = dkb_disp_config,
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};
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static struct mmp_buffer_driver_mach_info dkb_fb_info = {
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.name = "mmp-fb",
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.path_name = "mmp-parallel",
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.overlay_id = 0,
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.dmafetch_id = 1,
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.default_pixfmt = PIXFMT_RGB565,
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};
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static void dkb_tpo_panel_power(int on)
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{
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int err;
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u32 spi_reset = mfp_to_gpio(MFP_PIN_GPIO106);
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if (on) {
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err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET");
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if (err) {
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pr_err("failed to request GPIO for TPO LCD RESET\n");
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return;
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}
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gpio_direction_output(spi_reset, 0);
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udelay(100);
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gpio_set_value(spi_reset, 1);
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gpio_free(spi_reset);
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} else {
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err = gpio_request(spi_reset, "TPO_LCD_SPI_RESET");
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if (err) {
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pr_err("failed to request LCD RESET gpio\n");
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return;
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}
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gpio_set_value(spi_reset, 0);
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gpio_free(spi_reset);
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}
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}
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static struct mmp_mach_panel_info dkb_tpo_panel_info = {
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.name = "tpo-hvga",
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.plat_path_name = "mmp-parallel",
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.plat_set_onoff = dkb_tpo_panel_power,
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};
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static struct spi_board_info spi_board_info[] __initdata = {
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{
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.modalias = "tpo-hvga",
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.platform_data = &dkb_tpo_panel_info,
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.bus_num = 5,
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}
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};
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static void __init add_disp(void)
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{
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pxa_register_device(&pxa910_device_disp,
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&dkb_disp_info, sizeof(dkb_disp_info));
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spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
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pxa_register_device(&pxa910_device_fb,
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&dkb_fb_info, sizeof(dkb_fb_info));
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pxa_register_device(&pxa910_device_panel,
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&dkb_tpo_panel_info, sizeof(dkb_tpo_panel_info));
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}
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#endif
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static void __init ttc_dkb_init(void)
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{
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mfp_config(ARRAY_AND_SIZE(ttc_dkb_pin_config));
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/* on-chip devices */
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pxa910_add_uart(1);
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#if IS_ENABLED(CONFIG_MTD_NAND_PXA3xx)
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pxa910_add_nand(&dkb_nand_info);
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#endif
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/* off-chip devices */
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pxa910_add_twsi(0, NULL, ARRAY_AND_SIZE(ttc_dkb_i2c_info));
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platform_device_add_data(&pxa910_device_gpio, &pxa910_gpio_pdata,
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sizeof(struct pxa_gpio_platform_data));
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platform_add_devices(ARRAY_AND_SIZE(ttc_dkb_devices));
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#if IS_ENABLED(CONFIG_USB_MV_UDC)
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pxa168_device_u2o.dev.platform_data = &ttc_usb_pdata;
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platform_device_register(&pxa168_device_u2o);
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#endif
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#if IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
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pxa168_device_u2oehci.dev.platform_data = &ttc_usb_pdata;
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platform_device_register(&pxa168_device_u2oehci);
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#endif
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#if IS_ENABLED(CONFIG_USB_MV_OTG)
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pxa168_device_u2ootg.dev.platform_data = &ttc_usb_pdata;
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platform_device_register(&pxa168_device_u2ootg);
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#endif
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#if IS_ENABLED(CONFIG_MMP_DISP)
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add_disp();
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#endif
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}
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MACHINE_START(TTC_DKB, "PXA910-based TTC_DKB Development Platform")
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.map_io = mmp_map_io,
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.nr_irqs = TTCDKB_NR_IRQS,
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.init_irq = pxa910_init_irq,
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.init_time = pxa910_timer_init,
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.init_machine = ttc_dkb_init,
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.restart = mmp_restart,
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MACHINE_END
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