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linux_dsm_epyc7002/arch/mips/alchemy/devboards/db1000.c
Alban Bedel 832f5dacfa MIPS: Remove all the uses of custom gpio.h 
Currently CONFIG_ARCH_HAVE_CUSTOM_GPIO_H is defined for all MIPS
machines, and each machine type provides its own gpio.h. However
only a handful really implement the GPIO API, most just forward
everythings to gpiolib.

The Alchemy machine is notable as it provides a system to allow
implementing the GPIO API at the board level. But it is not used by
any board currently supported, so it can also be removed.

For most machine types we can just remove the custom gpio.h, as well
as the custom wrappers if some exists. Some of the code found in
the wrappers must be moved to the respective GPIO driver.

A few more fixes are need in some drivers as they rely on linux/gpio.h
to provides some machine specific definitions, or used asm/gpio.h
instead of linux/gpio.h for the gpio API.

Signed-off-by: Alban Bedel <albeu@free.fr>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Daniel Walter <dwalter@google.com>
Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: James Hartley <james.hartley@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Varka Bhadram <varkabhadram@gmail.com>
Cc: Masanari Iida <standby24x7@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Michael Buesch <m@bues.ch>
Cc: abdoulaye berthe <berthe.ab@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: netdev@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10828/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:02 +02:00

618 lines
15 KiB
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/*
* DBAu1000/1500/1100 PBAu1100/1500 board support
*
* Copyright 2000, 2008 MontaVista Software Inc.
* Author: MontaVista Software, Inc. <source@mvista.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/leds.h>
#include <linux/mmc/host.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
#include <linux/spi/ads7846.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-au1x00/gpio-au1000.h>
#include <asm/mach-au1x00/au1000_dma.h>
#include <asm/mach-au1x00/au1100_mmc.h>
#include <asm/mach-db1x00/bcsr.h>
#include <asm/reboot.h>
#include <prom.h>
#include "platform.h"
#define F_SWAPPED (bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT)
const char *get_system_type(void);
int __init db1000_board_setup(void)
{
/* initialize board register space */
bcsr_init(DB1000_BCSR_PHYS_ADDR,
DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS);
switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
case BCSR_WHOAMI_DB1000:
case BCSR_WHOAMI_DB1500:
case BCSR_WHOAMI_DB1100:
case BCSR_WHOAMI_PB1500:
case BCSR_WHOAMI_PB1500R2:
case BCSR_WHOAMI_PB1100:
pr_info("AMD Alchemy %s Board\n", get_system_type());
return 0;
}
return -ENODEV;
}
static int db1500_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
{
if ((slot < 12) || (slot > 13) || pin == 0)
return -1;
if (slot == 12)
return (pin == 1) ? AU1500_PCI_INTA : 0xff;
if (slot == 13) {
switch (pin) {
case 1: return AU1500_PCI_INTA;
case 2: return AU1500_PCI_INTB;
case 3: return AU1500_PCI_INTC;
case 4: return AU1500_PCI_INTD;
}
}
return -1;
}
static struct resource alchemy_pci_host_res[] = {
[0] = {
.start = AU1500_PCI_PHYS_ADDR,
.end = AU1500_PCI_PHYS_ADDR + 0xfff,
.flags = IORESOURCE_MEM,
},
};
static struct alchemy_pci_platdata db1500_pci_pd = {
.board_map_irq = db1500_map_pci_irq,
};
static struct platform_device db1500_pci_host_dev = {
.dev.platform_data = &db1500_pci_pd,
.name = "alchemy-pci",
.id = 0,
.num_resources = ARRAY_SIZE(alchemy_pci_host_res),
.resource = alchemy_pci_host_res,
};
int __init db1500_pci_setup(void)
{
return platform_device_register(&db1500_pci_host_dev);
}
static struct resource au1100_lcd_resources[] = {
[0] = {
.start = AU1100_LCD_PHYS_ADDR,
.end = AU1100_LCD_PHYS_ADDR + 0x800 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AU1100_LCD_INT,
.end = AU1100_LCD_INT,
.flags = IORESOURCE_IRQ,
}
};
static u64 au1100_lcd_dmamask = DMA_BIT_MASK(32);
static struct platform_device au1100_lcd_device = {
.name = "au1100-lcd",
.id = 0,
.dev = {
.dma_mask = &au1100_lcd_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(au1100_lcd_resources),
.resource = au1100_lcd_resources,
};
static struct resource alchemy_ac97c_res[] = {
[0] = {
.start = AU1000_AC97_PHYS_ADDR,
.end = AU1000_AC97_PHYS_ADDR + 0xfff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = DMA_ID_AC97C_TX,
.end = DMA_ID_AC97C_TX,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = DMA_ID_AC97C_RX,
.end = DMA_ID_AC97C_RX,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device alchemy_ac97c_dev = {
.name = "alchemy-ac97c",
.id = -1,
.resource = alchemy_ac97c_res,
.num_resources = ARRAY_SIZE(alchemy_ac97c_res),
};
static struct platform_device alchemy_ac97c_dma_dev = {
.name = "alchemy-pcm-dma",
.id = 0,
};
static struct platform_device db1x00_codec_dev = {
.name = "ac97-codec",
.id = -1,
};
static struct platform_device db1x00_audio_dev = {
.name = "db1000-audio",
};
/******************************************************************************/
static irqreturn_t db1100_mmc_cd(int irq, void *ptr)
{
void (*mmc_cd)(struct mmc_host *, unsigned long);
/* link against CONFIG_MMC=m */
mmc_cd = symbol_get(mmc_detect_change);
mmc_cd(ptr, msecs_to_jiffies(500));
symbol_put(mmc_detect_change);
return IRQ_HANDLED;
}
static int db1100_mmc_cd_setup(void *mmc_host, int en)
{
int ret = 0, irq;
if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
irq = AU1100_GPIO19_INT;
else
irq = AU1100_GPIO14_INT; /* PB1100 SD0 CD# */
if (en) {
irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
ret = request_irq(irq, db1100_mmc_cd, 0,
"sd0_cd", mmc_host);
} else
free_irq(irq, mmc_host);
return ret;
}
static int db1100_mmc1_cd_setup(void *mmc_host, int en)
{
int ret = 0, irq;
if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
irq = AU1100_GPIO20_INT;
else
irq = AU1100_GPIO15_INT; /* PB1100 SD1 CD# */
if (en) {
irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
ret = request_irq(irq, db1100_mmc_cd, 0,
"sd1_cd", mmc_host);
} else
free_irq(irq, mmc_host);
return ret;
}
static int db1100_mmc_card_readonly(void *mmc_host)
{
/* testing suggests that this bit is inverted */
return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 0 : 1;
}
static int db1100_mmc_card_inserted(void *mmc_host)
{
return !alchemy_gpio_get_value(19);
}
static void db1100_mmc_set_power(void *mmc_host, int state)
{
int bit;
if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
bit = BCSR_BOARD_SD0PWR;
else
bit = BCSR_BOARD_PB1100_SD0PWR;
if (state) {
bcsr_mod(BCSR_BOARD, 0, bit);
msleep(400); /* stabilization time */
} else
bcsr_mod(BCSR_BOARD, bit, 0);
}
static void db1100_mmcled_set(struct led_classdev *led, enum led_brightness b)
{
if (b != LED_OFF)
bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0);
else
bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0);
}
static struct led_classdev db1100_mmc_led = {
.brightness_set = db1100_mmcled_set,
};
static int db1100_mmc1_card_readonly(void *mmc_host)
{
return (bcsr_read(BCSR_BOARD) & BCSR_BOARD_SD1WP) ? 1 : 0;
}
static int db1100_mmc1_card_inserted(void *mmc_host)
{
return !alchemy_gpio_get_value(20);
}
static void db1100_mmc1_set_power(void *mmc_host, int state)
{
int bit;
if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
bit = BCSR_BOARD_SD1PWR;
else
bit = BCSR_BOARD_PB1100_SD1PWR;
if (state) {
bcsr_mod(BCSR_BOARD, 0, bit);
msleep(400); /* stabilization time */
} else
bcsr_mod(BCSR_BOARD, bit, 0);
}
static void db1100_mmc1led_set(struct led_classdev *led, enum led_brightness b)
{
if (b != LED_OFF)
bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED1, 0);
else
bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED1);
}
static struct led_classdev db1100_mmc1_led = {
.brightness_set = db1100_mmc1led_set,
};
static struct au1xmmc_platform_data db1100_mmc_platdata[2] = {
[0] = {
.cd_setup = db1100_mmc_cd_setup,
.set_power = db1100_mmc_set_power,
.card_inserted = db1100_mmc_card_inserted,
.card_readonly = db1100_mmc_card_readonly,
.led = &db1100_mmc_led,
},
[1] = {
.cd_setup = db1100_mmc1_cd_setup,
.set_power = db1100_mmc1_set_power,
.card_inserted = db1100_mmc1_card_inserted,
.card_readonly = db1100_mmc1_card_readonly,
.led = &db1100_mmc1_led,
},
};
static struct resource au1100_mmc0_resources[] = {
[0] = {
.start = AU1100_SD0_PHYS_ADDR,
.end = AU1100_SD0_PHYS_ADDR + 0xfff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AU1100_SD_INT,
.end = AU1100_SD_INT,
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = DMA_ID_SD0_TX,
.end = DMA_ID_SD0_TX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = DMA_ID_SD0_RX,
.end = DMA_ID_SD0_RX,
.flags = IORESOURCE_DMA,
}
};
static u64 au1xxx_mmc_dmamask = DMA_BIT_MASK(32);
static struct platform_device db1100_mmc0_dev = {
.name = "au1xxx-mmc",
.id = 0,
.dev = {
.dma_mask = &au1xxx_mmc_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &db1100_mmc_platdata[0],
},
.num_resources = ARRAY_SIZE(au1100_mmc0_resources),
.resource = au1100_mmc0_resources,
};
static struct resource au1100_mmc1_res[] = {
[0] = {
.start = AU1100_SD1_PHYS_ADDR,
.end = AU1100_SD1_PHYS_ADDR + 0xfff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AU1100_SD_INT,
.end = AU1100_SD_INT,
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = DMA_ID_SD1_TX,
.end = DMA_ID_SD1_TX,
.flags = IORESOURCE_DMA,
},
[3] = {
.start = DMA_ID_SD1_RX,
.end = DMA_ID_SD1_RX,
.flags = IORESOURCE_DMA,
}
};
static struct platform_device db1100_mmc1_dev = {
.name = "au1xxx-mmc",
.id = 1,
.dev = {
.dma_mask = &au1xxx_mmc_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &db1100_mmc_platdata[1],
},
.num_resources = ARRAY_SIZE(au1100_mmc1_res),
.resource = au1100_mmc1_res,
};
/******************************************************************************/
static void db1000_irda_set_phy_mode(int mode)
{
unsigned short mask = BCSR_RESETS_IRDA_MODE_MASK | BCSR_RESETS_FIR_SEL;
switch (mode) {
case AU1000_IRDA_PHY_MODE_OFF:
bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_OFF);
break;
case AU1000_IRDA_PHY_MODE_SIR:
bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL);
break;
case AU1000_IRDA_PHY_MODE_FIR:
bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL |
BCSR_RESETS_FIR_SEL);
break;
}
}
static struct au1k_irda_platform_data db1000_irda_platdata = {
.set_phy_mode = db1000_irda_set_phy_mode,
};
static struct resource au1000_irda_res[] = {
[0] = {
.start = AU1000_IRDA_PHYS_ADDR,
.end = AU1000_IRDA_PHYS_ADDR + 0x0fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AU1000_IRDA_TX_INT,
.end = AU1000_IRDA_TX_INT,
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = AU1000_IRDA_RX_INT,
.end = AU1000_IRDA_RX_INT,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device db1000_irda_dev = {
.name = "au1000-irda",
.id = -1,
.dev = {
.platform_data = &db1000_irda_platdata,
},
.resource = au1000_irda_res,
.num_resources = ARRAY_SIZE(au1000_irda_res),
};
/******************************************************************************/
static struct ads7846_platform_data db1100_touch_pd = {
.model = 7846,
.vref_mv = 3300,
.gpio_pendown = 21,
};
static struct spi_gpio_platform_data db1100_spictl_pd = {
.sck = 209,
.mosi = 208,
.miso = 207,
.num_chipselect = 1,
};
static struct spi_board_info db1100_spi_info[] __initdata = {
[0] = {
.modalias = "ads7846",
.max_speed_hz = 3250000,
.bus_num = 0,
.chip_select = 0,
.mode = 0,
.irq = AU1100_GPIO21_INT,
.platform_data = &db1100_touch_pd,
.controller_data = (void *)210, /* for spi_gpio: CS# GPIO210 */
},
};
static struct platform_device db1100_spi_dev = {
.name = "spi_gpio",
.id = 0,
.dev = {
.platform_data = &db1100_spictl_pd,
},
};
static struct platform_device *db1x00_devs[] = {
&db1x00_codec_dev,
&alchemy_ac97c_dma_dev,
&alchemy_ac97c_dev,
&db1x00_audio_dev,
};
static struct platform_device *db1000_devs[] = {
&db1000_irda_dev,
};
static struct platform_device *db1100_devs[] = {
&au1100_lcd_device,
&db1100_mmc0_dev,
&db1100_mmc1_dev,
&db1000_irda_dev,
};
int __init db1000_dev_setup(void)
{
int board = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
int c0, c1, d0, d1, s0, s1, flashsize = 32, twosocks = 1;
unsigned long pfc;
struct clk *c, *p;
if (board == BCSR_WHOAMI_DB1500) {
c0 = AU1500_GPIO2_INT;
c1 = AU1500_GPIO5_INT;
d0 = AU1500_GPIO0_INT;
d1 = AU1500_GPIO3_INT;
s0 = AU1500_GPIO1_INT;
s1 = AU1500_GPIO4_INT;
} else if (board == BCSR_WHOAMI_DB1100) {
c0 = AU1100_GPIO2_INT;
c1 = AU1100_GPIO5_INT;
d0 = AU1100_GPIO0_INT;
d1 = AU1100_GPIO3_INT;
s0 = AU1100_GPIO1_INT;
s1 = AU1100_GPIO4_INT;
gpio_request(19, "sd0_cd");
gpio_request(20, "sd1_cd");
gpio_direction_input(19); /* sd0 cd# */
gpio_direction_input(20); /* sd1 cd# */
/* spi_gpio on SSI0 pins */
pfc = alchemy_rdsys(AU1000_SYS_PINFUNC);
pfc |= (1 << 0); /* SSI0 pins as GPIOs */
alchemy_wrsys(pfc, AU1000_SYS_PINFUNC);
spi_register_board_info(db1100_spi_info,
ARRAY_SIZE(db1100_spi_info));
/* link LCD clock to AUXPLL */
p = clk_get(NULL, "auxpll_clk");
c = clk_get(NULL, "lcd_intclk");
if (!IS_ERR(c) && !IS_ERR(p)) {
clk_set_parent(c, p);
clk_set_rate(c, clk_get_rate(p));
}
if (!IS_ERR(c))
clk_put(c);
if (!IS_ERR(p))
clk_put(p);
platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
platform_device_register(&db1100_spi_dev);
} else if (board == BCSR_WHOAMI_DB1000) {
c0 = AU1000_GPIO2_INT;
c1 = AU1000_GPIO5_INT;
d0 = AU1000_GPIO0_INT;
d1 = AU1000_GPIO3_INT;
s0 = AU1000_GPIO1_INT;
s1 = AU1000_GPIO4_INT;
platform_add_devices(db1000_devs, ARRAY_SIZE(db1000_devs));
} else if ((board == BCSR_WHOAMI_PB1500) ||
(board == BCSR_WHOAMI_PB1500R2)) {
c0 = AU1500_GPIO203_INT;
d0 = AU1500_GPIO201_INT;
s0 = AU1500_GPIO202_INT;
twosocks = 0;
flashsize = 64;
/* RTC and daughtercard irqs */
irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
/* EPSON S1D13806 0x1b000000
* SRAM 1MB/2MB 0x1a000000
* DS1693 RTC 0x0c000000
*/
} else if (board == BCSR_WHOAMI_PB1100) {
c0 = AU1100_GPIO11_INT;
d0 = AU1100_GPIO9_INT;
s0 = AU1100_GPIO10_INT;
twosocks = 0;
flashsize = 64;
/* pendown, rtc, daughtercard irqs */
irq_set_irq_type(AU1100_GPIO8_INT, IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(AU1100_GPIO12_INT, IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(AU1100_GPIO13_INT, IRQ_TYPE_LEVEL_LOW);
/* EPSON S1D13806 0x1b000000
* SRAM 1MB/2MB 0x1a000000
* DiskOnChip 0x0d000000
* DS1693 RTC 0x0c000000
*/
platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
} else
return 0; /* unknown board, no further dev setup to do */
irq_set_irq_type(d0, IRQ_TYPE_EDGE_BOTH);
irq_set_irq_type(c0, IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(s0, IRQ_TYPE_LEVEL_LOW);
db1x_register_pcmcia_socket(
AU1000_PCMCIA_ATTR_PHYS_ADDR,
AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
AU1000_PCMCIA_MEM_PHYS_ADDR,
AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1,
AU1000_PCMCIA_IO_PHYS_ADDR,
AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1,
c0, d0, /*s0*/0, 0, 0);
if (twosocks) {
irq_set_irq_type(d1, IRQ_TYPE_EDGE_BOTH);
irq_set_irq_type(c1, IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(s1, IRQ_TYPE_LEVEL_LOW);
db1x_register_pcmcia_socket(
AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1,
AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004000000,
AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1,
AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000,
AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1,
c1, d1, /*s1*/0, 0, 1);
}
platform_add_devices(db1x00_devs, ARRAY_SIZE(db1x00_devs));
db1x_register_norflash(flashsize << 20, 4 /* 32bit */, F_SWAPPED);
return 0;
}
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