[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-kirkwood / openrd-setup.c

/*
 * arch/arm/mach-kirkwood/openrd-setup.c
 *
 * Marvell OpenRD (Base|Client|Ultimate) Board Setup
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/ata_platform.h>
#include <linux/mv643xx_eth.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/kirkwood.h>
#include <linux/platform_data/mmc-mvsdio.h>
#include "common.h"
#include "mpp.h"

static struct mtd_partition openrd_nand_parts[] = {
	{
		.name		= "u-boot",
		.offset		= 0,
		.size		= SZ_1M,
		.mask_flags	= MTD_WRITEABLE
	}, {
		.name		= "uImage",
		.offset		= MTDPART_OFS_NXTBLK,
		.size		= SZ_4M
	}, {
		.name		= "root",
		.offset		= MTDPART_OFS_NXTBLK,
		.size		= MTDPART_SIZ_FULL
	},
};

static struct mv643xx_eth_platform_data openrd_ge00_data = {
	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
};

static struct mv643xx_eth_platform_data openrd_ge01_data = {
	.phy_addr	= MV643XX_ETH_PHY_ADDR(24),
};

static struct mv_sata_platform_data openrd_sata_data = {
	.n_ports	= 2,
};

static struct mvsdio_platform_data openrd_mvsdio_data = {
	.gpio_card_detect = 29,	/* MPP29 used as SD card detect */
	.gpio_write_protect = -1,
};

static unsigned int openrd_mpp_config[] __initdata = {
	MPP12_SD_CLK,
	MPP13_SD_CMD,
	MPP14_SD_D0,
	MPP15_SD_D1,
	MPP16_SD_D2,
	MPP17_SD_D3,
	MPP28_GPIO,
	MPP29_GPIO,
	MPP34_GPIO,
	0
};

/* Configure MPP for UART1 */
static unsigned int openrd_uart1_mpp_config[] __initdata = {
	MPP13_UART1_TXD,
	MPP14_UART1_RXD,
	0
};

static struct i2c_board_info i2c_board_info[] __initdata = {
	{
		I2C_BOARD_INFO("cs42l51", 0x4a),
	},
};

static struct platform_device openrd_client_audio_device = {
	.name		= "openrd-client-audio",
	.id		= -1,
};

static int __initdata uart1;

static int __init sd_uart_selection(char *str)
{
	uart1 = -EINVAL;

	/* Default is SD. Change if required, for UART */
	if (!str)
		return 0;

	if (!strncmp(str, "232", 3)) {
		uart1 = 232;
	} else if (!strncmp(str, "485", 3)) {
		/* OpenRD-Base doesn't have RS485. Treat is as an
		 * unknown argument & just have default setting -
		 * which is SD */
		if (machine_is_openrd_base()) {
			uart1 = -ENODEV;
			return 1;
		}

		uart1 = 485;
	}
	return 1;
}
/* Parse boot_command_line string kw_openrd_init_uart1=232/485 */
__setup("kw_openrd_init_uart1=", sd_uart_selection);

static int __init uart1_mpp_config(void)
{
	kirkwood_mpp_conf(openrd_uart1_mpp_config);

	if (gpio_request(34, "SD_UART1_SEL")) {
		pr_err("GPIO request 34 failed for SD/UART1 selection\n");
		return -EIO;
	}

	if (gpio_request(28, "RS232_RS485_SEL")) {
		pr_err("GPIO request 28 failed for RS232/RS485 selection\n");
		gpio_free(34);
		return -EIO;
	}

	/* Select UART1
	 * Pin # 34: 0 => UART1, 1 => SD */
	gpio_direction_output(34, 0);

	/* Select RS232 OR RS485
	 * Pin # 28: 0 => RS232, 1 => RS485 */
	if (uart1 == 232)
		gpio_direction_output(28, 0);
	else
		gpio_direction_output(28, 1);

	gpio_free(34);
	gpio_free(28);

	return 0;
}

static void __init openrd_init(void)
{
	/*
	 * Basic setup. Needs to be called early.
	 */
	kirkwood_init();
	kirkwood_mpp_conf(openrd_mpp_config);

	kirkwood_uart0_init();
	kirkwood_nand_init(ARRAY_AND_SIZE(openrd_nand_parts), 25);

	kirkwood_ehci_init();

	if (machine_is_openrd_ultimate()) {
		openrd_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0);
		openrd_ge01_data.phy_addr = MV643XX_ETH_PHY_ADDR(1);
	}

	kirkwood_ge00_init(&openrd_ge00_data);
	if (!machine_is_openrd_base())
		kirkwood_ge01_init(&openrd_ge01_data);

	kirkwood_sata_init(&openrd_sata_data);

	kirkwood_i2c_init();

	if (machine_is_openrd_client() || machine_is_openrd_ultimate()) {
		platform_device_register(&openrd_client_audio_device);
		i2c_register_board_info(0, i2c_board_info,
			ARRAY_SIZE(i2c_board_info));
		kirkwood_audio_init();
	}

	if (uart1 <= 0) {
		if (uart1 < 0)
			pr_err("Invalid kernel parameter to select UART1. Defaulting to SD. ERROR CODE: %d\n",
			       uart1);

		/* Select SD
		 * Pin # 34: 0 => UART1, 1 => SD */
		if (gpio_request(34, "SD_UART1_SEL")) {
			pr_err("GPIO request 34 failed for SD/UART1 selection\n");
		} else {

			gpio_direction_output(34, 1);
			gpio_free(34);
			kirkwood_sdio_init(&openrd_mvsdio_data);
		}
	} else {
		if (!uart1_mpp_config())
			kirkwood_uart1_init();
	}
}

static int __init openrd_pci_init(void)
{
	if (machine_is_openrd_base() ||
	    machine_is_openrd_client() ||
	    machine_is_openrd_ultimate())
		kirkwood_pcie_init(KW_PCIE0);

	return 0;
}
subsys_initcall(openrd_pci_init);

#ifdef CONFIG_MACH_OPENRD_BASE
MACHINE_START(OPENRD_BASE, "Marvell OpenRD Base Board")
	/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
	.atag_offset	= 0x100,
	.init_machine	= openrd_init,
	.map_io		= kirkwood_map_io,
	.init_early	= kirkwood_init_early,
	.init_irq	= kirkwood_init_irq,
	.init_time	= kirkwood_timer_init,
	.restart	= kirkwood_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_OPENRD_CLIENT
MACHINE_START(OPENRD_CLIENT, "Marvell OpenRD Client Board")
	/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
	.atag_offset	= 0x100,
	.init_machine	= openrd_init,
	.map_io		= kirkwood_map_io,
	.init_early	= kirkwood_init_early,
	.init_irq	= kirkwood_init_irq,
	.init_time	= kirkwood_timer_init,
	.restart	= kirkwood_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_OPENRD_ULTIMATE
MACHINE_START(OPENRD_ULTIMATE, "Marvell OpenRD Ultimate Board")
	/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
	.atag_offset	= 0x100,
	.init_machine	= openrd_init,
	.map_io		= kirkwood_map_io,
	.init_early	= kirkwood_init_early,
	.init_irq	= kirkwood_init_irq,
	.init_time	= kirkwood_timer_init,
	.restart	= kirkwood_restart,
MACHINE_END
#endif
Commit	Line	Data
b2fdb566 AC	1	/*
	2	* arch/arm/mach-kirkwood/openrd-setup.c
	3	*
43b56074	4	* Marvell OpenRD (Base\|Client\|Ultimate) Board Setup
b2fdb566 AC	5	*
	6	* This file is licensed under the terms of the GNU General Public
	7	* License version 2. This program is licensed "as is" without any
	8	* warranty of any kind, whether express or implied.
	9	*/
	10
	11	#include <linux/kernel.h>
	12	#include <linux/init.h>
	13	#include <linux/platform_device.h>
	14	#include <linux/mtd/nand.h>
	15	#include <linux/mtd/partitions.h>
	16	#include <linux/ata_platform.h>
	17	#include <linux/mv643xx_eth.h>
492e2bf1	18	#include <linux/i2c.h>
fd2ce9c5	19	#include <linux/gpio.h>
b2fdb566 AC	20	#include <asm/mach-types.h>
	21	#include <asm/mach/arch.h>
	22	#include <mach/kirkwood.h>
c02cecb9	23	#include <linux/platform_data/mmc-mvsdio.h>
b2fdb566 AC	24	#include "common.h"
	25	#include "mpp.h"
	26
	27	static struct mtd_partition openrd_nand_parts[] = {
	28	{
	29	.name = "u-boot",
	30	.offset = 0,
	31	.size = SZ_1M,
	32	.mask_flags = MTD_WRITEABLE
	33	}, {
	34	.name = "uImage",
	35	.offset = MTDPART_OFS_NXTBLK,
	36	.size = SZ_4M
	37	}, {
	38	.name = "root",
	39	.offset = MTDPART_OFS_NXTBLK,
	40	.size = MTDPART_SIZ_FULL
	41	},
	42	};
	43
	44	static struct mv643xx_eth_platform_data openrd_ge00_data = {
	45	.phy_addr = MV643XX_ETH_PHY_ADDR(8),
	46	};
	47
	48	static struct mv643xx_eth_platform_data openrd_ge01_data = {
	49	.phy_addr = MV643XX_ETH_PHY_ADDR(24),
	50	};
	51
	52	static struct mv_sata_platform_data openrd_sata_data = {
	53	.n_ports = 2,
	54	};
	55
	56	static struct mvsdio_platform_data openrd_mvsdio_data = {
	57	.gpio_card_detect = 29, /* MPP29 used as SD card detect */
0d0644eb	58	.gpio_write_protect = -1,
b2fdb566 AC	59	};
	60
	61	static unsigned int openrd_mpp_config[] __initdata = {
fd2ce9c5 TU	62	MPP12_SD_CLK,
	63	MPP13_SD_CMD,
	64	MPP14_SD_D0,
	65	MPP15_SD_D1,
	66	MPP16_SD_D2,
	67	MPP17_SD_D3,
	68	MPP28_GPIO,
b2fdb566	69	MPP29_GPIO,
fd2ce9c5 TU	70	MPP34_GPIO,
	71	0
	72	};
	73
	74	/* Configure MPP for UART1 */
	75	static unsigned int openrd_uart1_mpp_config[] __initdata = {
	76	MPP13_UART1_TXD,
	77	MPP14_UART1_RXD,
b2fdb566 AC	78	0
	79	};
	80
492e2bf1	81	static struct i2c_board_info i2c_board_info[] __initdata = {
	82	{
	83	I2C_BOARD_INFO("cs42l51", 0x4a),
	84	},
	85	};
	86
6d6761aa AL	87	static struct platform_device openrd_client_audio_device = {
	88	.name = "openrd-client-audio",
	89	.id = -1,
	90	};
	91
fd2ce9c5 TU	92	static int __initdata uart1;
	93
	94	static int __init sd_uart_selection(char *str)
	95	{
	96	uart1 = -EINVAL;
	97
	98	/* Default is SD. Change if required, for UART */
	99	if (!str)
	100	return 0;
	101
	102	if (!strncmp(str, "232", 3)) {
	103	uart1 = 232;
	104	} else if (!strncmp(str, "485", 3)) {
	105	/* OpenRD-Base doesn't have RS485. Treat is as an
	106	* unknown argument & just have default setting -
	107	* which is SD */
	108	if (machine_is_openrd_base()) {
	109	uart1 = -ENODEV;
	110	return 1;
	111	}
	112
	113	uart1 = 485;
	114	}
	115	return 1;
	116	}
	117	/* Parse boot_command_line string kw_openrd_init_uart1=232/485 */
	118	__setup("kw_openrd_init_uart1=", sd_uart_selection);
	119
	120	static int __init uart1_mpp_config(void)
	121	{
	122	kirkwood_mpp_conf(openrd_uart1_mpp_config);
	123
	124	if (gpio_request(34, "SD_UART1_SEL")) {
98adf932	125	pr_err("GPIO request 34 failed for SD/UART1 selection\n");
fd2ce9c5 TU	126	return -EIO;
	127	}
	128
	129	if (gpio_request(28, "RS232_RS485_SEL")) {
98adf932	130	pr_err("GPIO request 28 failed for RS232/RS485 selection\n");
fd2ce9c5 TU	131	gpio_free(34);
	132	return -EIO;
	133	}
	134
	135	/* Select UART1
	136	* Pin # 34: 0 => UART1, 1 => SD */
	137	gpio_direction_output(34, 0);
	138
	139	/* Select RS232 OR RS485
	140	* Pin # 28: 0 => RS232, 1 => RS485 */
	141	if (uart1 == 232)
	142	gpio_direction_output(28, 0);
	143	else
	144	gpio_direction_output(28, 1);
	145
	146	gpio_free(34);
	147	gpio_free(28);
	148
	149	return 0;
	150	}
	151
b2fdb566 AC	152	static void __init openrd_init(void)
	153	{
	154	/*
	155	* Basic setup. Needs to be called early.
	156	*/
	157	kirkwood_init();
	158	kirkwood_mpp_conf(openrd_mpp_config);
	159
	160	kirkwood_uart0_init();
	161	kirkwood_nand_init(ARRAY_AND_SIZE(openrd_nand_parts), 25);
	162
	163	kirkwood_ehci_init();
	164
43b56074 DM	165	if (machine_is_openrd_ultimate()) {
	166	openrd_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0);
	167	openrd_ge01_data.phy_addr = MV643XX_ETH_PHY_ADDR(1);
	168	}
	169
b2fdb566	170	kirkwood_ge00_init(&openrd_ge00_data);
43b56074	171	if (!machine_is_openrd_base())
b2fdb566	172	kirkwood_ge01_init(&openrd_ge01_data);
43b56074	173
b2fdb566	174	kirkwood_sata_init(&openrd_sata_data);
b2fdb566 AC	175
b2fdb566 AC	176	kirkwood_i2c_init();
492e2bf1	177
3c9e28e7	178	if (machine_is_openrd_client() \|\| machine_is_openrd_ultimate()) {
6d6761aa	179	platform_device_register(&openrd_client_audio_device);
492e2bf1	180	i2c_register_board_info(0, i2c_board_info,
	181	ARRAY_SIZE(i2c_board_info));
	182	kirkwood_audio_init();
	183	}
fd2ce9c5 TU	184
	185	if (uart1 <= 0) {
	186	if (uart1 < 0)
98adf932 AL	187	pr_err("Invalid kernel parameter to select UART1. Defaulting to SD. ERROR CODE: %d\n",
98adf932 AL	188	uart1);
fd2ce9c5 TU	189
	190	/* Select SD
	191	* Pin # 34: 0 => UART1, 1 => SD */
	192	if (gpio_request(34, "SD_UART1_SEL")) {
98adf932	193	pr_err("GPIO request 34 failed for SD/UART1 selection\n");
fd2ce9c5 TU	194	} else {
	195
	196	gpio_direction_output(34, 1);
	197	gpio_free(34);
	198	kirkwood_sdio_init(&openrd_mvsdio_data);
	199	}
	200	} else {
	201	if (!uart1_mpp_config())
	202	kirkwood_uart1_init();
	203	}
b2fdb566 AC	204	}
	205
	206	static int __init openrd_pci_init(void)
	207	{
43b56074 DM	208	if (machine_is_openrd_base() \|\|
	209	machine_is_openrd_client() \|\|
	210	machine_is_openrd_ultimate())
ffd58bd2	211	kirkwood_pcie_init(KW_PCIE0);
b2fdb566 AC	212
	213	return 0;
	214	}
	215	subsys_initcall(openrd_pci_init);
	216
	217	#ifdef CONFIG_MACH_OPENRD_BASE
	218	MACHINE_START(OPENRD_BASE, "Marvell OpenRD Base Board")
	219	/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
1b7bd28c	220	.atag_offset = 0x100,
b2fdb566 AC	221	.init_machine = openrd_init,
b2fdb566 AC	222	.map_io = kirkwood_map_io,
4ee1f6b5	223	.init_early = kirkwood_init_early,
b2fdb566	224	.init_irq = kirkwood_init_irq,
6bb27d73	225	.init_time = kirkwood_timer_init,
cb15dff4	226	.restart = kirkwood_restart,
b2fdb566 AC	227	MACHINE_END
	228	#endif
	229
	230	#ifdef CONFIG_MACH_OPENRD_CLIENT
	231	MACHINE_START(OPENRD_CLIENT, "Marvell OpenRD Client Board")
	232	/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
1b7bd28c	233	.atag_offset = 0x100,
b2fdb566 AC	234	.init_machine = openrd_init,
b2fdb566 AC	235	.map_io = kirkwood_map_io,
4ee1f6b5	236	.init_early = kirkwood_init_early,
b2fdb566	237	.init_irq = kirkwood_init_irq,
6bb27d73	238	.init_time = kirkwood_timer_init,
cb15dff4	239	.restart = kirkwood_restart,
b2fdb566 AC	240	MACHINE_END
b2fdb566 AC	241	#endif
43b56074 DM	242
	243	#ifdef CONFIG_MACH_OPENRD_ULTIMATE
	244	MACHINE_START(OPENRD_ULTIMATE, "Marvell OpenRD Ultimate Board")
	245	/* Maintainer: Dhaval Vasa <dhaval.vasa@einfochips.com> */
1b7bd28c	246	.atag_offset = 0x100,
43b56074 DM	247	.init_machine = openrd_init,
43b56074 DM	248	.map_io = kirkwood_map_io,
4ee1f6b5	249	.init_early = kirkwood_init_early,
43b56074	250	.init_irq = kirkwood_init_irq,
6bb27d73	251	.init_time = kirkwood_timer_init,
cb15dff4	252	.restart = kirkwood_restart,
43b56074 DM	253	MACHINE_END
43b56074 DM	254	#endif