AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-26 00:25:33 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
2a40d1b291
linux_dsm_epyc7002/arch/arm/mach-ep93xx/ts72xx.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 
Based on 1 normalized pattern(s):

  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 either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

424 lines
12 KiB
C
Raw Blame History

// 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 <mach/irqs.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),
};
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 = "ep93xx-spi.0",
.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 = "ep93xx-spi.0",
.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,
.map_io = ts72xx_map_io,
.init_irq = ep93xx_init_irq,
.init_time = ep93xx_timer_init,
.init_machine = ts72xx_init_machine,
.init_late = ep93xx_init_late,
.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,
.map_io = ts72xx_map_io,
.init_irq = ep93xx_init_irq,
.init_time = ep93xx_timer_init,
.init_machine = bk3_init_machine,
.init_late = ep93xx_init_late,
.restart = ep93xx_restart,
MACHINE_END
Reference in New Issue View Git Blame Copy Permalink