ARM: 5937/1: Add support for EP9315 based Snapper CL15 board (dd2ac961) · Commits · e / devices / android_kernel_fairphone_FP4

arch/arm/mach-ep93xx/Kconfig

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		@@ -168,6 +168,13 @@ config MACH_SIM_ONE
		Say 'Y' here if you want your kernel to support the
		Simplemachines Sim.One board.

		config MACH_SNAPPER_CL15
		bool "Support Bluewater Systems Snapper CL15 Module"
		depends on EP93XX_SDCE0_PHYS_OFFSET
		help
		Say 'Y' here if you want your kernel to support the Bluewater
		Systems Snapper CL15 Module.

		config MACH_TS72XX
		bool "Support Technologic Systems TS-72xx SBC"
		depends on EP93XX_SDCE3_SYNC_PHYS_OFFSET

arch/arm/mach-ep93xx/Makefile

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		@@ -11,4 +11,5 @@ obj-$(CONFIG_MACH_EDB93XX) += edb93xx.o
		obj-$(CONFIG_MACH_GESBC9312) += gesbc9312.o
		obj-$(CONFIG_MACH_MICRO9) += micro9.o
		obj-$(CONFIG_MACH_SIM_ONE) += simone.o
		obj-$(CONFIG_MACH_SNAPPER_CL15) += snappercl15.o
		obj-$(CONFIG_MACH_TS72XX) += ts72xx.o

arch/arm/mach-ep93xx/snappercl15.c

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+172 −0

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		/*
		* arch/arm/mach-ep93xx/snappercl15.c
		* Bluewater Systems Snapper CL15 system module
		*
		* Copyright (C) 2009 Bluewater Systems Ltd
		* Author: Ryan Mallon <ryan@bluewatersys.com>
		*
		* NAND code adapted from driver by:
		* Andre Renaud <andre@bluewatersys.com>
		* James R. McKaskill
		*
		* 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.
		*
		*/

		#include <linux/platform_device.h>
		#include <linux/kernel.h>
		#include <linux/init.h>
		#include <linux/io.h>
		#include <linux/gpio.h>
		#include <linux/i2c.h>
		#include <linux/i2c-gpio.h>
		#include <linux/fb.h>

		#include <linux/mtd/partitions.h>
		#include <linux/mtd/nand.h>

		#include <mach/hardware.h>
		#include <mach/fb.h>

		#include <asm/mach-types.h>
		#include <asm/mach/arch.h>

		#define SNAPPERCL15_NAND_BASE (EP93XX_CS7_PHYS_BASE + SZ_16M)

		#define SNAPPERCL15_NAND_WPN (1 << 8) /* Write protect (active low) */
		#define SNAPPERCL15_NAND_ALE (1 << 9) /* Address latch */
		#define SNAPPERCL15_NAND_CLE (1 << 10) /* Command latch */
		#define SNAPPERCL15_NAND_CEN (1 << 11) /* Chip enable (active low) */
		#define SNAPPERCL15_NAND_RDY (1 << 14) /* Device ready */

		#define NAND_CTRL_ADDR(chip) (chip->IO_ADDR_W + 0x40)

		static void snappercl15_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
		unsigned int ctrl)
		{
		struct nand_chip *chip = mtd->priv;
		static u16 nand_state = SNAPPERCL15_NAND_WPN;
		u16 set;

		if (ctrl & NAND_CTRL_CHANGE) {
		set = SNAPPERCL15_NAND_CEN \| SNAPPERCL15_NAND_WPN;

		if (ctrl & NAND_NCE)
		set &= ~SNAPPERCL15_NAND_CEN;
		if (ctrl & NAND_CLE)
		set \|= SNAPPERCL15_NAND_CLE;
		if (ctrl & NAND_ALE)
		set \|= SNAPPERCL15_NAND_ALE;

		nand_state &= ~(SNAPPERCL15_NAND_CEN \|
		SNAPPERCL15_NAND_CLE \|
		SNAPPERCL15_NAND_ALE);
		nand_state \|= set;
		__raw_writew(nand_state, NAND_CTRL_ADDR(chip));
		}

		if (cmd != NAND_CMD_NONE)
		__raw_writew((cmd & 0xff) \| nand_state, chip->IO_ADDR_W);
		}

		static int snappercl15_nand_dev_ready(struct mtd_info *mtd)
		{
		struct nand_chip *chip = mtd->priv;

		return !!(__raw_readw(NAND_CTRL_ADDR(chip)) & SNAPPERCL15_NAND_RDY);
		}

		static const char *snappercl15_nand_part_probes[] = {"cmdlinepart", NULL};

		static struct mtd_partition snappercl15_nand_parts[] = {
		{
		.name = "Kernel",
		.offset = 0,
		.size = SZ_2M,
		},
		{
		.name = "Filesystem",
		.offset = MTDPART_OFS_APPEND,
		.size = MTDPART_SIZ_FULL,
		},
		};

		static struct platform_nand_data snappercl15_nand_data = {
		.chip = {
		.nr_chips = 1,
		.part_probe_types = snappercl15_nand_part_probes,
		.partitions = snappercl15_nand_parts,
		.nr_partitions = ARRAY_SIZE(snappercl15_nand_parts),
		.options = NAND_NO_AUTOINCR,
		.chip_delay = 25,
		},
		.ctrl = {
		.dev_ready = snappercl15_nand_dev_ready,
		.cmd_ctrl = snappercl15_nand_cmd_ctrl,
		},
		};

		static struct resource snappercl15_nand_resource[] = {
		{
		.start = SNAPPERCL15_NAND_BASE,
		.end = SNAPPERCL15_NAND_BASE + SZ_4K - 1,
		.flags = IORESOURCE_MEM,
		},
		};

		static struct platform_device snappercl15_nand_device = {
		.name = "gen_nand",
		.id = -1,
		.dev.platform_data = &snappercl15_nand_data,
		.resource = snappercl15_nand_resource,
		.num_resources = ARRAY_SIZE(snappercl15_nand_resource),
		};

		static struct ep93xx_eth_data snappercl15_eth_data = {
		.phy_id = 1,
		};

		static struct i2c_gpio_platform_data snappercl15_i2c_gpio_data = {
		.sda_pin = EP93XX_GPIO_LINE_EEDAT,
		.sda_is_open_drain = 0,
		.scl_pin = EP93XX_GPIO_LINE_EECLK,
		.scl_is_open_drain = 0,
		.udelay = 0,
		.timeout = 0,
		};

		static struct i2c_board_info __initdata snappercl15_i2c_data[] = {
		{
		/* Audio codec */
		I2C_BOARD_INFO("tlv320aic23", 0x1a),
		},
		};

		static struct ep93xxfb_mach_info snappercl15_fb_info = {
		.num_modes = EP93XXFB_USE_MODEDB,
		.bpp = 16,
		};

		static void __init snappercl15_init_machine(void)
		{
		ep93xx_init_devices();
		ep93xx_register_eth(&snappercl15_eth_data, 1);
		ep93xx_register_i2c(&snappercl15_i2c_gpio_data, snappercl15_i2c_data,
		ARRAY_SIZE(snappercl15_i2c_data));
		ep93xx_register_fb(&snappercl15_fb_info);
		platform_device_register(&snappercl15_nand_device);
		}

		MACHINE_START(SNAPPER_CL15, "Bluewater Systems Snapper CL15")
		/* Maintainer: Ryan Mallon <ryan@bluewatersys.com> */
		.phys_io = EP93XX_APB_PHYS_BASE,
		.io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
		.boot_params = EP93XX_SDCE0_PHYS_BASE + 0x100,
		.map_io = ep93xx_map_io,
		.init_irq = ep93xx_init_irq,
		.timer = &ep93xx_timer,
		.init_machine = snappercl15_init_machine,
		MACHINE_END