[thirdparty/kernel/stable.git] / arch / arm / mach-imx / mach-kzm_arm11_01.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * KZM-ARM11-01 support
 *  Copyright (C) 2009  Yoichi Yuasa <yuasa@linux-mips.org>
 *
 * based on code for MX31ADS,
 *  Copyright (C) 2000 Deep Blue Solutions Ltd
 *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
 *  Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
 */

#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/smsc911x.h>
#include <linux/types.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>

#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/memory.h>
#include <asm/setup.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>

#include "common.h"
#include "devices-imx31.h"
#include "hardware.h"
#include "iomux-mx3.h"

#define KZM_ARM11_IO_ADDRESS(x) (IOMEM(					\
	IMX_IO_P2V_MODULE(x, MX31_CS4) ?:				\
	IMX_IO_P2V_MODULE(x, MX31_CS5)) ?:				\
	MX31_IO_ADDRESS(x))

/*
 *  KZM-ARM11-01 Board Control Registers on FPGA
 */
#define KZM_ARM11_CTL1		(MX31_CS4_BASE_ADDR + 0x1000)
#define KZM_ARM11_CTL2		(MX31_CS4_BASE_ADDR + 0x1001)
#define KZM_ARM11_RSW1		(MX31_CS4_BASE_ADDR + 0x1002)
#define KZM_ARM11_BACK_LIGHT	(MX31_CS4_BASE_ADDR + 0x1004)
#define KZM_ARM11_FPGA_REV	(MX31_CS4_BASE_ADDR + 0x1008)
#define KZM_ARM11_7SEG_LED	(MX31_CS4_BASE_ADDR + 0x1010)
#define KZM_ARM11_LEDS		(MX31_CS4_BASE_ADDR + 0x1020)
#define KZM_ARM11_DIPSW2	(MX31_CS4_BASE_ADDR + 0x1003)

/*
 * External UART for touch panel on FPGA
 */
#define KZM_ARM11_16550		(MX31_CS4_BASE_ADDR + 0x1050)

#if IS_ENABLED(CONFIG_SERIAL_8250)
/*
 * KZM-ARM11-01 has an external UART on FPGA
 */
static struct plat_serial8250_port serial_platform_data[] = {
	{
		.membase	= KZM_ARM11_IO_ADDRESS(KZM_ARM11_16550),
		.mapbase	= KZM_ARM11_16550,
		/* irq number is run-time assigned */
		.irqflags	= IRQ_TYPE_EDGE_RISING,
		.uartclk	= 14745600,
		.regshift	= 0,
		.iotype		= UPIO_MEM,
		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
				  UPF_BUGGY_UART,
	},
	{},
};

static struct resource serial8250_resources[] = {
	{
		.start	= KZM_ARM11_16550,
		.end	= KZM_ARM11_16550 + 0x10,
		.flags	= IORESOURCE_MEM,
	},
	{
		/* irq number is run-time assigned */
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device serial_device = {
	.name		= "serial8250",
	.id		= PLAT8250_DEV_PLATFORM,
	.dev		= {
				.platform_data = serial_platform_data,
			  },
	.num_resources	= ARRAY_SIZE(serial8250_resources),
	.resource	= serial8250_resources,
};

static int __init kzm_init_ext_uart(void)
{
	u8 tmp;

	/*
	 * GPIO 1-1: external UART interrupt line
	 */
	mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO));
	gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1), "ext-uart-int");
	gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));

	/*
	 * Unmask UART interrupt
	 */
	tmp = __raw_readb(KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1));
	tmp |= 0x2;
	__raw_writeb(tmp, KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1));

	serial_platform_data[0].irq =
			gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
	serial8250_resources[1].start =
			gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
	serial8250_resources[1].end =
			gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));

	return platform_device_register(&serial_device);
}
#else
static inline int kzm_init_ext_uart(void)
{
	return 0;
}
#endif

/*
 * SMSC LAN9118
 */
#if IS_ENABLED(CONFIG_SMSC911X)
static struct smsc911x_platform_config kzm_smsc9118_config = {
	.phy_interface	= PHY_INTERFACE_MODE_MII,
	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
	.irq_type	= SMSC911X_IRQ_TYPE_PUSH_PULL,
	.flags		= SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
};

static struct resource kzm_smsc9118_resources[] = {
	{
		.start	= MX31_CS5_BASE_ADDR,
		.end	= MX31_CS5_BASE_ADDR + SZ_128K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		/* irq number is run-time assigned */
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
	},
};

static struct platform_device kzm_smsc9118_device = {
	.name		= "smsc911x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(kzm_smsc9118_resources),
	.resource	= kzm_smsc9118_resources,
	.dev		= {
				.platform_data = &kzm_smsc9118_config,
			  },
};

static struct regulator_consumer_supply dummy_supplies[] = {
	REGULATOR_SUPPLY("vdd33a", "smsc911x"),
	REGULATOR_SUPPLY("vddvario", "smsc911x"),
};

static int __init kzm_init_smsc9118(void)
{
	/*
	 * GPIO 1-2: SMSC9118 interrupt line
	 */
	mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO));
	gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int");
	gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));

	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));

	kzm_smsc9118_resources[1].start =
			gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
	kzm_smsc9118_resources[1].end =
			gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));

	return platform_device_register(&kzm_smsc9118_device);
}
#else
static inline int kzm_init_smsc9118(void)
{
	return 0;
}
#endif

#if IS_ENABLED(CONFIG_SERIAL_IMX)
static const struct imxuart_platform_data uart_pdata __initconst = {
	.flags = IMXUART_HAVE_RTSCTS,
};

static void __init kzm_init_imx_uart(void)
{
	imx31_add_imx_uart0(&uart_pdata);
	imx31_add_imx_uart1(&uart_pdata);
}
#else
static inline void kzm_init_imx_uart(void)
{
}
#endif

static int kzm_pins[] __initdata = {
	MX31_PIN_CTS1__CTS1,
	MX31_PIN_RTS1__RTS1,
	MX31_PIN_TXD1__TXD1,
	MX31_PIN_RXD1__RXD1,
	MX31_PIN_DCD_DCE1__DCD_DCE1,
	MX31_PIN_RI_DCE1__RI_DCE1,
	MX31_PIN_DSR_DCE1__DSR_DCE1,
	MX31_PIN_DTR_DCE1__DTR_DCE1,
	MX31_PIN_CTS2__CTS2,
	MX31_PIN_RTS2__RTS2,
	MX31_PIN_TXD2__TXD2,
	MX31_PIN_RXD2__RXD2,
	MX31_PIN_DCD_DTE1__DCD_DTE2,
	MX31_PIN_RI_DTE1__RI_DTE2,
	MX31_PIN_DSR_DTE1__DSR_DTE2,
	MX31_PIN_DTR_DTE1__DTR_DTE2,
};

/*
 * Board specific initialization.
 */
static void __init kzm_board_init(void)
{
	imx31_soc_init();

	mxc_iomux_setup_multiple_pins(kzm_pins,
				      ARRAY_SIZE(kzm_pins), "kzm");
	kzm_init_imx_uart();

	pr_info("Clock input source is 26MHz\n");
}

static void __init kzm_late_init(void)
{
	kzm_init_ext_uart();
	kzm_init_smsc9118();
}

/*
 * This structure defines static mappings for the kzm-arm11-01 board.
 */
static struct map_desc kzm_io_desc[] __initdata = {
	{
		.virtual	= (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
		.pfn		= __phys_to_pfn(MX31_CS4_BASE_ADDR),
		.length		= MX31_CS4_SIZE,
		.type		= MT_DEVICE
	},
	{
		.virtual	= (unsigned long)MX31_CS5_BASE_ADDR_VIRT,
		.pfn		= __phys_to_pfn(MX31_CS5_BASE_ADDR),
		.length		= MX31_CS5_SIZE,
		.type		= MT_DEVICE
	},
};

/*
 * Set up static virtual mappings.
 */
static void __init kzm_map_io(void)
{
	mx31_map_io();
	iotable_init(kzm_io_desc, ARRAY_SIZE(kzm_io_desc));
}

static void __init kzm_timer_init(void)
{
	mx31_clocks_init(26000000);
}

MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01")
	.atag_offset = 0x100,
	.map_io = kzm_map_io,
	.init_early = imx31_init_early,
	.init_irq = mx31_init_irq,
	.init_time	= kzm_timer_init,
	.init_machine = kzm_board_init,
	.init_late	= kzm_late_init,
	.restart	= mxc_restart,
MACHINE_END
Commit	Line	Data
c942fddf	1	// SPDX-License-Identifier: GPL-2.0-or-later
415c7d26 YY	2	/*
	3	* KZM-ARM11-01 support
	4	* Copyright (C) 2009 Yoichi Yuasa <yuasa@linux-mips.org>
	5	*
	6	* based on code for MX31ADS,
	7	* Copyright (C) 2000 Deep Blue Solutions Ltd
	8	* Copyright (C) 2002 Shane Nay (shane@minirl.com)
	9	* Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
415c7d26 YY	10	*/
	11
	12	#include <linux/gpio.h>
	13	#include <linux/init.h>
	14	#include <linux/platform_device.h>
	15	#include <linux/serial_8250.h>
	16	#include <linux/smsc911x.h>
	17	#include <linux/types.h>
ccdf3278 FE	18	#include <linux/regulator/machine.h>
ccdf3278 FE	19	#include <linux/regulator/fixed.h>
415c7d26 YY	20
	21	#include <asm/irq.h>
	22	#include <asm/mach-types.h>
f4117ac9	23	#include <asm/memory.h>
415c7d26 YY	24	#include <asm/setup.h>
	25	#include <asm/mach/arch.h>
	26	#include <asm/mach/irq.h>
	27	#include <asm/mach/map.h>
	28	#include <asm/mach/time.h>
	29
e3372474	30	#include "common.h"
16cf5c41	31	#include "devices-imx31.h"
50f2de61	32	#include "hardware.h"
267dd34c	33	#include "iomux-mx3.h"
415c7d26	34
f5d7a13b UKK	35	#define KZM_ARM11_IO_ADDRESS(x) (IOMEM( \
	36	IMX_IO_P2V_MODULE(x, MX31_CS4) ?: \
	37	IMX_IO_P2V_MODULE(x, MX31_CS5)) ?: \
59e26081 UKK	38	MX31_IO_ADDRESS(x))
59e26081 UKK	39
7b562d0f UKK	40	/*
	41	* KZM-ARM11-01 Board Control Registers on FPGA
	42	*/
	43	#define KZM_ARM11_CTL1 (MX31_CS4_BASE_ADDR + 0x1000)
	44	#define KZM_ARM11_CTL2 (MX31_CS4_BASE_ADDR + 0x1001)
	45	#define KZM_ARM11_RSW1 (MX31_CS4_BASE_ADDR + 0x1002)
	46	#define KZM_ARM11_BACK_LIGHT (MX31_CS4_BASE_ADDR + 0x1004)
	47	#define KZM_ARM11_FPGA_REV (MX31_CS4_BASE_ADDR + 0x1008)
	48	#define KZM_ARM11_7SEG_LED (MX31_CS4_BASE_ADDR + 0x1010)
	49	#define KZM_ARM11_LEDS (MX31_CS4_BASE_ADDR + 0x1020)
	50	#define KZM_ARM11_DIPSW2 (MX31_CS4_BASE_ADDR + 0x1003)
	51
	52	/*
	53	* External UART for touch panel on FPGA
	54	*/
	55	#define KZM_ARM11_16550 (MX31_CS4_BASE_ADDR + 0x1050)
	56
d37bac43	57	#if IS_ENABLED(CONFIG_SERIAL_8250)
415c7d26 YY	58	/*
	59	* KZM-ARM11-01 has an external UART on FPGA
	60	*/
	61	static struct plat_serial8250_port serial_platform_data[] = {
	62	{
59e26081	63	.membase = KZM_ARM11_IO_ADDRESS(KZM_ARM11_16550),
415c7d26	64	.mapbase = KZM_ARM11_16550,
ed175343	65	/* irq number is run-time assigned */
415c7d26 YY	66	.irqflags = IRQ_TYPE_EDGE_RISING,
	67	.uartclk = 14745600,
	68	.regshift = 0,
	69	.iotype = UPIO_MEM,
	70	.flags = UPF_BOOT_AUTOCONF \| UPF_SKIP_TEST \|
	71	UPF_BUGGY_UART,
	72	},
	73	{},
	74	};
	75
	76	static struct resource serial8250_resources[] = {
	77	{
	78	.start = KZM_ARM11_16550,
	79	.end = KZM_ARM11_16550 + 0x10,
	80	.flags = IORESOURCE_MEM,
	81	},
	82	{
ed175343	83	/* irq number is run-time assigned */
415c7d26 YY	84	.flags = IORESOURCE_IRQ,
	85	},
	86	};
	87
	88	static struct platform_device serial_device = {
	89	.name = "serial8250",
	90	.id = PLAT8250_DEV_PLATFORM,
	91	.dev = {
	92	.platform_data = serial_platform_data,
	93	},
	94	.num_resources = ARRAY_SIZE(serial8250_resources),
	95	.resource = serial8250_resources,
	96	};
	97
	98	static int __init kzm_init_ext_uart(void)
	99	{
	100	u8 tmp;
	101
	102	/*
	103	* GPIO 1-1: external UART interrupt line
	104	*/
	105	mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO));
	106	gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1), "ext-uart-int");
	107	gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
	108
	109	/*
	110	* Unmask UART interrupt
	111	*/
59e26081	112	tmp = __raw_readb(KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1));
415c7d26	113	tmp \|= 0x2;
59e26081	114	__raw_writeb(tmp, KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1));
415c7d26	115
ed175343 SG	116	serial_platform_data[0].irq =
	117	gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
	118	serial8250_resources[1].start =
	119	gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
	120	serial8250_resources[1].end =
	121	gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1));
	122
415c7d26 YY	123	return platform_device_register(&serial_device);
	124	}
	125	#else
	126	static inline int kzm_init_ext_uart(void)
	127	{
	128	return 0;
	129	}
	130	#endif
	131
	132	/*
	133	* SMSC LAN9118
	134	*/
d37bac43	135	#if IS_ENABLED(CONFIG_SMSC911X)
415c7d26 YY	136	static struct smsc911x_platform_config kzm_smsc9118_config = {
	137	.phy_interface = PHY_INTERFACE_MODE_MII,
	138	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
	139	.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
	140	.flags = SMSC911X_USE_32BIT \| SMSC911X_SAVE_MAC_ADDRESS,
	141	};
	142
	143	static struct resource kzm_smsc9118_resources[] = {
	144	{
f568dd7f UKK	145	.start = MX31_CS5_BASE_ADDR,
f568dd7f UKK	146	.end = MX31_CS5_BASE_ADDR + SZ_128K - 1,
415c7d26 YY	147	.flags = IORESOURCE_MEM,
	148	},
	149	{
ed175343	150	/* irq number is run-time assigned */
415c7d26 YY	151	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_HIGHEDGE,
	152	},
	153	};
	154
	155	static struct platform_device kzm_smsc9118_device = {
	156	.name = "smsc911x",
	157	.id = -1,
	158	.num_resources = ARRAY_SIZE(kzm_smsc9118_resources),
	159	.resource = kzm_smsc9118_resources,
	160	.dev = {
	161	.platform_data = &kzm_smsc9118_config,
	162	},
	163	};
	164
ccdf3278 FE	165	static struct regulator_consumer_supply dummy_supplies[] = {
	166	REGULATOR_SUPPLY("vdd33a", "smsc911x"),
	167	REGULATOR_SUPPLY("vddvario", "smsc911x"),
	168	};
	169
415c7d26 YY	170	static int __init kzm_init_smsc9118(void)
	171	{
	172	/*
	173	* GPIO 1-2: SMSC9118 interrupt line
	174	*/
	175	mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO));
	176	gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int");
	177	gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
	178
ccdf3278 FE	179	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
ccdf3278 FE	180
ed175343 SG	181	kzm_smsc9118_resources[1].start =
	182	gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
	183	kzm_smsc9118_resources[1].end =
	184	gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2));
	185
415c7d26 YY	186	return platform_device_register(&kzm_smsc9118_device);
	187	}
	188	#else
	189	static inline int kzm_init_smsc9118(void)
	190	{
	191	return 0;
	192	}
	193	#endif
	194
d37bac43	195	#if IS_ENABLED(CONFIG_SERIAL_IMX)
16cf5c41	196	static const struct imxuart_platform_data uart_pdata __initconst = {
415c7d26 YY	197	.flags = IMXUART_HAVE_RTSCTS,
	198	};
	199
	200	static void __init kzm_init_imx_uart(void)
	201	{
16cf5c41 UKK	202	imx31_add_imx_uart0(&uart_pdata);
16cf5c41 UKK	203	imx31_add_imx_uart1(&uart_pdata);
415c7d26 YY	204	}
	205	#else
	206	static inline void kzm_init_imx_uart(void)
	207	{
	208	}
	209	#endif
	210
	211	static int kzm_pins[] __initdata = {
	212	MX31_PIN_CTS1__CTS1,
	213	MX31_PIN_RTS1__RTS1,
	214	MX31_PIN_TXD1__TXD1,
	215	MX31_PIN_RXD1__RXD1,
	216	MX31_PIN_DCD_DCE1__DCD_DCE1,
	217	MX31_PIN_RI_DCE1__RI_DCE1,
	218	MX31_PIN_DSR_DCE1__DSR_DCE1,
	219	MX31_PIN_DTR_DCE1__DTR_DCE1,
	220	MX31_PIN_CTS2__CTS2,
	221	MX31_PIN_RTS2__RTS2,
	222	MX31_PIN_TXD2__TXD2,
	223	MX31_PIN_RXD2__RXD2,
	224	MX31_PIN_DCD_DTE1__DCD_DTE2,
	225	MX31_PIN_RI_DTE1__RI_DTE2,
	226	MX31_PIN_DSR_DTE1__DSR_DTE2,
	227	MX31_PIN_DTR_DTE1__DTR_DTE2,
	228	};
	229
	230	/*
	231	* Board specific initialization.
	232	*/
	233	static void __init kzm_board_init(void)
	234	{
b78d8e59 SG	235	imx31_soc_init();
b78d8e59 SG	236
415c7d26 YY	237	mxc_iomux_setup_multiple_pins(kzm_pins,
415c7d26 YY	238	ARRAY_SIZE(kzm_pins), "kzm");
415c7d26 YY	239	kzm_init_imx_uart();
	240
	241	pr_info("Clock input source is 26MHz\n");
	242	}
	243
4bc2e627 VZ	244	static void __init kzm_late_init(void)
	245	{
	246	kzm_init_ext_uart();
	247	kzm_init_smsc9118();
	248	}
	249
415c7d26 YY	250	/*
	251	* This structure defines static mappings for the kzm-arm11-01 board.
	252	*/
	253	static struct map_desc kzm_io_desc[] __initdata = {
	254	{
f25d696a	255	.virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
f568dd7f UKK	256	.pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
f568dd7f UKK	257	.length = MX31_CS4_SIZE,
415c7d26 YY	258	.type = MT_DEVICE
	259	},
	260	{
f25d696a	261	.virtual = (unsigned long)MX31_CS5_BASE_ADDR_VIRT,
f568dd7f UKK	262	.pfn = __phys_to_pfn(MX31_CS5_BASE_ADDR),
f568dd7f UKK	263	.length = MX31_CS5_SIZE,
415c7d26 YY	264	.type = MT_DEVICE
	265	},
	266	};
	267
	268	/*
	269	* Set up static virtual mappings.
	270	*/
	271	static void __init kzm_map_io(void)
	272	{
	273	mx31_map_io();
	274	iotable_init(kzm_io_desc, ARRAY_SIZE(kzm_io_desc));
	275	}
	276
	277	static void __init kzm_timer_init(void)
	278	{
	279	mx31_clocks_init(26000000);
	280	}
	281
415c7d26	282	MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01")
dc8f1907	283	.atag_offset = 0x100,
97976e22 UKK	284	.map_io = kzm_map_io,
	285	.init_early = imx31_init_early,
	286	.init_irq = mx31_init_irq,
6bb27d73	287	.init_time = kzm_timer_init,
97976e22	288	.init_machine = kzm_board_init,
4bc2e627	289	.init_late = kzm_late_init,
65ea7884	290	.restart = mxc_restart,
415c7d26	291	MACHINE_END