diff options
Diffstat (limited to 'arch/arm/mach-ep93xx/ts72xx.c')
| -rw-r--r-- | arch/arm/mach-ep93xx/ts72xx.c | 422 |
1 files changed, 0 insertions, 422 deletions
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c deleted file mode 100644 index d3de7283ecb3..000000000000 --- a/arch/arm/mach-ep93xx/ts72xx.c +++ /dev/null @@ -1,422 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * arch/arm/mach-ep93xx/ts72xx.c - * Technologic Systems TS72xx SBC support. - * - * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/mtd/platnand.h> -#include <linux/spi/spi.h> -#include <linux/spi/flash.h> -#include <linux/spi/mmc_spi.h> -#include <linux/mmc/host.h> -#include <linux/platform_data/spi-ep93xx.h> -#include <linux/gpio/machine.h> - -#include "gpio-ep93xx.h" -#include "hardware.h" - -#include <asm/mach-types.h> -#include <asm/mach/map.h> -#include <asm/mach/arch.h> - -#include "soc.h" -#include "ts72xx.h" - -/************************************************************************* - * IO map - *************************************************************************/ -static struct map_desc ts72xx_io_desc[] __initdata = { - { - .virtual = (unsigned long)TS72XX_MODEL_VIRT_BASE, - .pfn = __phys_to_pfn(TS72XX_MODEL_PHYS_BASE), - .length = TS72XX_MODEL_SIZE, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)TS72XX_OPTIONS_VIRT_BASE, - .pfn = __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE), - .length = TS72XX_OPTIONS_SIZE, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)TS72XX_OPTIONS2_VIRT_BASE, - .pfn = __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE), - .length = TS72XX_OPTIONS2_SIZE, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)TS72XX_CPLDVER_VIRT_BASE, - .pfn = __phys_to_pfn(TS72XX_CPLDVER_PHYS_BASE), - .length = TS72XX_CPLDVER_SIZE, - .type = MT_DEVICE, - } -}; - -static void __init ts72xx_map_io(void) -{ - ep93xx_map_io(); - iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc)); -} - - -/************************************************************************* - * NAND flash - *************************************************************************/ -#define TS72XX_NAND_CONTROL_ADDR_LINE 22 /* 0xN0400000 */ -#define TS72XX_NAND_BUSY_ADDR_LINE 23 /* 0xN0800000 */ - -static void ts72xx_nand_hwcontrol(struct nand_chip *chip, - int cmd, unsigned int ctrl) -{ - if (ctrl & NAND_CTRL_CHANGE) { - void __iomem *addr = chip->legacy.IO_ADDR_R; - unsigned char bits; - - addr += (1 << TS72XX_NAND_CONTROL_ADDR_LINE); - - bits = __raw_readb(addr) & ~0x07; - bits |= (ctrl & NAND_NCE) << 2; /* bit 0 -> bit 2 */ - bits |= (ctrl & NAND_CLE); /* bit 1 -> bit 1 */ - bits |= (ctrl & NAND_ALE) >> 2; /* bit 2 -> bit 0 */ - - __raw_writeb(bits, addr); - } - - if (cmd != NAND_CMD_NONE) - __raw_writeb(cmd, chip->legacy.IO_ADDR_W); -} - -static int ts72xx_nand_device_ready(struct nand_chip *chip) -{ - void __iomem *addr = chip->legacy.IO_ADDR_R; - - addr += (1 << TS72XX_NAND_BUSY_ADDR_LINE); - - return !!(__raw_readb(addr) & 0x20); -} - -#define TS72XX_BOOTROM_PART_SIZE (SZ_16K) -#define TS72XX_REDBOOT_PART_SIZE (SZ_2M + SZ_1M) - -static struct mtd_partition ts72xx_nand_parts[] = { - { - .name = "TS-BOOTROM", - .offset = 0, - .size = TS72XX_BOOTROM_PART_SIZE, - .mask_flags = MTD_WRITEABLE, /* force read-only */ - }, { - .name = "Linux", - .offset = MTDPART_OFS_RETAIN, - .size = TS72XX_REDBOOT_PART_SIZE, - /* leave so much for last partition */ - }, { - .name = "RedBoot", - .offset = MTDPART_OFS_APPEND, - .size = MTDPART_SIZ_FULL, - .mask_flags = MTD_WRITEABLE, /* force read-only */ - }, -}; - -static struct platform_nand_data ts72xx_nand_data = { - .chip = { - .nr_chips = 1, - .chip_offset = 0, - .chip_delay = 15, - }, - .ctrl = { - .cmd_ctrl = ts72xx_nand_hwcontrol, - .dev_ready = ts72xx_nand_device_ready, - }, -}; - -static struct resource ts72xx_nand_resource[] = { - { - .start = 0, /* filled in later */ - .end = 0, /* filled in later */ - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device ts72xx_nand_flash = { - .name = "gen_nand", - .id = -1, - .dev.platform_data = &ts72xx_nand_data, - .resource = ts72xx_nand_resource, - .num_resources = ARRAY_SIZE(ts72xx_nand_resource), -}; - -static void __init ts72xx_register_flash(struct mtd_partition *parts, int n, - resource_size_t start) -{ - /* - * TS7200 has NOR flash all other TS72xx board have NAND flash. - */ - if (board_is_ts7200()) { - ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M); - } else { - ts72xx_nand_resource[0].start = start; - ts72xx_nand_resource[0].end = start + SZ_16M - 1; - - ts72xx_nand_data.chip.partitions = parts; - ts72xx_nand_data.chip.nr_partitions = n; - - platform_device_register(&ts72xx_nand_flash); - } -} - -/************************************************************************* - * RTC M48T86 - *************************************************************************/ -#define TS72XX_RTC_INDEX_PHYS_BASE (EP93XX_CS1_PHYS_BASE + 0x00800000) -#define TS72XX_RTC_DATA_PHYS_BASE (EP93XX_CS1_PHYS_BASE + 0x01700000) - -static struct resource ts72xx_rtc_resources[] = { - DEFINE_RES_MEM(TS72XX_RTC_INDEX_PHYS_BASE, 0x01), - DEFINE_RES_MEM(TS72XX_RTC_DATA_PHYS_BASE, 0x01), -}; - -static struct platform_device ts72xx_rtc_device = { - .name = "rtc-m48t86", - .id = -1, - .resource = ts72xx_rtc_resources, - .num_resources = ARRAY_SIZE(ts72xx_rtc_resources), -}; - -/************************************************************************* - * Watchdog (in CPLD) - *************************************************************************/ -#define TS72XX_WDT_CONTROL_PHYS_BASE (EP93XX_CS2_PHYS_BASE + 0x03800000) -#define TS72XX_WDT_FEED_PHYS_BASE (EP93XX_CS2_PHYS_BASE + 0x03c00000) - -static struct resource ts72xx_wdt_resources[] = { - DEFINE_RES_MEM(TS72XX_WDT_CONTROL_PHYS_BASE, 0x01), - DEFINE_RES_MEM(TS72XX_WDT_FEED_PHYS_BASE, 0x01), -}; - -static struct platform_device ts72xx_wdt_device = { - .name = "ts72xx-wdt", - .id = -1, - .resource = ts72xx_wdt_resources, - .num_resources = ARRAY_SIZE(ts72xx_wdt_resources), -}; - -/************************************************************************* - * ETH - *************************************************************************/ -static struct ep93xx_eth_data __initdata ts72xx_eth_data = { - .phy_id = 1, -}; - -/************************************************************************* - * SPI SD/MMC host - *************************************************************************/ -#define BK3_EN_SDCARD_PHYS_BASE 0x12400000 -#define BK3_EN_SDCARD_PWR 0x0 -#define BK3_DIS_SDCARD_PWR 0x0C -static void bk3_mmc_spi_setpower(struct device *dev, unsigned int vdd) -{ - void __iomem *pwr_sd = ioremap(BK3_EN_SDCARD_PHYS_BASE, SZ_4K); - - if (!pwr_sd) { - pr_err("Failed to enable SD card power!"); - return; - } - - pr_debug("%s: SD card pwr %s VDD:0x%x\n", __func__, - !!vdd ? "ON" : "OFF", vdd); - - if (!!vdd) - __raw_writeb(BK3_EN_SDCARD_PWR, pwr_sd); - else - __raw_writeb(BK3_DIS_SDCARD_PWR, pwr_sd); - - iounmap(pwr_sd); -} - -static struct mmc_spi_platform_data bk3_spi_mmc_data = { - .detect_delay = 500, - .powerup_msecs = 100, - .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, - .caps = MMC_CAP_NONREMOVABLE, - .setpower = bk3_mmc_spi_setpower, -}; - -/************************************************************************* - * SPI Bus - SD card access - *************************************************************************/ -static struct spi_board_info bk3_spi_board_info[] __initdata = { - { - .modalias = "mmc_spi", - .platform_data = &bk3_spi_mmc_data, - .max_speed_hz = 7.4E6, - .bus_num = 0, - .chip_select = 0, - .mode = SPI_MODE_0, - }, -}; - -/* - * This is a stub -> the FGPIO[3] pin is not connected on the schematic - * The all work is performed automatically by !SPI_FRAME (SFRM1) and - * goes through CPLD - */ -static struct gpiod_lookup_table bk3_spi_cs_gpio_table = { - .dev_id = "spi0", - .table = { - GPIO_LOOKUP("F", 3, "cs", GPIO_ACTIVE_LOW), - { }, - }, -}; - -static struct ep93xx_spi_info bk3_spi_master __initdata = { - .use_dma = 1, -}; - -/************************************************************************* - * TS72XX support code - *************************************************************************/ -#if IS_ENABLED(CONFIG_FPGA_MGR_TS73XX) - -/* Relative to EP93XX_CS1_PHYS_BASE */ -#define TS73XX_FPGA_LOADER_BASE 0x03c00000 - -static struct resource ts73xx_fpga_resources[] = { - { - .start = EP93XX_CS1_PHYS_BASE + TS73XX_FPGA_LOADER_BASE, - .end = EP93XX_CS1_PHYS_BASE + TS73XX_FPGA_LOADER_BASE + 1, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device ts73xx_fpga_device = { - .name = "ts73xx-fpga-mgr", - .id = -1, - .resource = ts73xx_fpga_resources, - .num_resources = ARRAY_SIZE(ts73xx_fpga_resources), -}; - -#endif - -/************************************************************************* - * SPI Bus - *************************************************************************/ -static struct spi_board_info ts72xx_spi_devices[] __initdata = { - { - .modalias = "tmp122", - .max_speed_hz = 2 * 1000 * 1000, - .bus_num = 0, - .chip_select = 0, - }, -}; - -static struct gpiod_lookup_table ts72xx_spi_cs_gpio_table = { - .dev_id = "spi0", - .table = { - /* DIO_17 */ - GPIO_LOOKUP("F", 2, "cs", GPIO_ACTIVE_LOW), - { }, - }, -}; - -static struct ep93xx_spi_info ts72xx_spi_info __initdata = { - /* Intentionally left blank */ -}; - -static void __init ts72xx_init_machine(void) -{ - ep93xx_init_devices(); - ts72xx_register_flash(ts72xx_nand_parts, ARRAY_SIZE(ts72xx_nand_parts), - is_ts9420_installed() ? - EP93XX_CS7_PHYS_BASE : EP93XX_CS6_PHYS_BASE); - platform_device_register(&ts72xx_rtc_device); - platform_device_register(&ts72xx_wdt_device); - - ep93xx_register_eth(&ts72xx_eth_data, 1); -#if IS_ENABLED(CONFIG_FPGA_MGR_TS73XX) - if (board_is_ts7300()) - platform_device_register(&ts73xx_fpga_device); -#endif - gpiod_add_lookup_table(&ts72xx_spi_cs_gpio_table); - ep93xx_register_spi(&ts72xx_spi_info, ts72xx_spi_devices, - ARRAY_SIZE(ts72xx_spi_devices)); -} - -MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC") - /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ - .atag_offset = 0x100, - .nr_irqs = NR_EP93XX_IRQS, - .map_io = ts72xx_map_io, - .init_irq = ep93xx_init_irq, - .init_time = ep93xx_timer_init, - .init_machine = ts72xx_init_machine, - .restart = ep93xx_restart, -MACHINE_END - -/************************************************************************* - * EP93xx I2S audio peripheral handling - *************************************************************************/ -static struct resource ep93xx_i2s_resource[] = { - DEFINE_RES_MEM(EP93XX_I2S_PHYS_BASE, 0x100), - DEFINE_RES_IRQ_NAMED(IRQ_EP93XX_SAI, "spilink i2s slave"), -}; - -static struct platform_device ep93xx_i2s_device = { - .name = "ep93xx-spilink-i2s", - .id = -1, - .num_resources = ARRAY_SIZE(ep93xx_i2s_resource), - .resource = ep93xx_i2s_resource, -}; - -/************************************************************************* - * BK3 support code - *************************************************************************/ -static struct mtd_partition bk3_nand_parts[] = { - { - .name = "System", - .offset = 0x00000000, - .size = 0x01e00000, - }, { - .name = "Data", - .offset = 0x01e00000, - .size = 0x05f20000 - }, { - .name = "RedBoot", - .offset = 0x07d20000, - .size = 0x002e0000, - .mask_flags = MTD_WRITEABLE, /* force RO */ - }, -}; - -static void __init bk3_init_machine(void) -{ - ep93xx_init_devices(); - - ts72xx_register_flash(bk3_nand_parts, ARRAY_SIZE(bk3_nand_parts), - EP93XX_CS6_PHYS_BASE); - - ep93xx_register_eth(&ts72xx_eth_data, 1); - - gpiod_add_lookup_table(&bk3_spi_cs_gpio_table); - ep93xx_register_spi(&bk3_spi_master, bk3_spi_board_info, - ARRAY_SIZE(bk3_spi_board_info)); - - /* Configure ep93xx's I2S to use AC97 pins */ - ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_I2SONAC97); - platform_device_register(&ep93xx_i2s_device); -} - -MACHINE_START(BK3, "Liebherr controller BK3.1") - /* Maintainer: Lukasz Majewski <lukma@denx.de> */ - .atag_offset = 0x100, - .nr_irqs = NR_EP93XX_IRQS, - .map_io = ts72xx_map_io, - .init_irq = ep93xx_init_irq, - .init_time = ep93xx_timer_init, - .init_machine = bk3_init_machine, - .restart = ep93xx_restart, -MACHINE_END |