From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 arch/arm/mach-omap2/board-h4.c | 347 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 347 insertions(+)
 create mode 100644 arch/arm/mach-omap2/board-h4.c

(limited to 'arch/arm/mach-omap2/board-h4.c')

diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
new file mode 100644
index 00000000..69c0acf5
--- /dev/null
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -0,0 +1,347 @@
+/*
+ * linux/arch/arm/mach-omap2/board-h4.c
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Author: Paul Mundt <paul.mundt@nokia.com>
+ *
+ * Modified from mach-omap/omap1/board-generic.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+#include <linux/input.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/mfd/menelaus.h>
+#include <linux/omap-dma.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <video/omapdss.h>
+#include <video/omap-panel-data.h>
+
+#include "common.h"
+#include "mux.h"
+#include "control.h"
+#include "gpmc.h"
+#include "gpmc-smc91x.h"
+
+#define H4_FLASH_CS	0
+
+#if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
+static const uint32_t board_matrix_keys[] = {
+	KEY(0, 0, KEY_LEFT),
+	KEY(1, 0, KEY_RIGHT),
+	KEY(2, 0, KEY_A),
+	KEY(3, 0, KEY_B),
+	KEY(4, 0, KEY_C),
+	KEY(0, 1, KEY_DOWN),
+	KEY(1, 1, KEY_UP),
+	KEY(2, 1, KEY_E),
+	KEY(3, 1, KEY_F),
+	KEY(4, 1, KEY_G),
+	KEY(0, 2, KEY_ENTER),
+	KEY(1, 2, KEY_I),
+	KEY(2, 2, KEY_J),
+	KEY(3, 2, KEY_K),
+	KEY(4, 2, KEY_3),
+	KEY(0, 3, KEY_M),
+	KEY(1, 3, KEY_N),
+	KEY(2, 3, KEY_O),
+	KEY(3, 3, KEY_P),
+	KEY(4, 3, KEY_Q),
+	KEY(0, 4, KEY_R),
+	KEY(1, 4, KEY_4),
+	KEY(2, 4, KEY_T),
+	KEY(3, 4, KEY_U),
+	KEY(4, 4, KEY_ENTER),
+	KEY(0, 5, KEY_V),
+	KEY(1, 5, KEY_W),
+	KEY(2, 5, KEY_L),
+	KEY(3, 5, KEY_S),
+	KEY(4, 5, KEY_ENTER),
+};
+
+static const struct matrix_keymap_data board_keymap_data = {
+	.keymap			= board_matrix_keys,
+	.keymap_size		= ARRAY_SIZE(board_matrix_keys),
+};
+
+static unsigned int board_keypad_row_gpios[] = {
+	88, 89, 124, 11, 6, 96
+};
+
+static unsigned int board_keypad_col_gpios[] = {
+	90, 91, 100, 36, 12, 97, 98
+};
+
+static struct matrix_keypad_platform_data board_keypad_platform_data = {
+	.keymap_data	= &board_keymap_data,
+	.row_gpios	= board_keypad_row_gpios,
+	.num_row_gpios	= ARRAY_SIZE(board_keypad_row_gpios),
+	.col_gpios	= board_keypad_col_gpios,
+	.num_col_gpios	= ARRAY_SIZE(board_keypad_col_gpios),
+	.active_low	= 1,
+
+	.debounce_ms		= 20,
+	.col_scan_delay_us	= 5,
+};
+
+static struct platform_device board_keyboard = {
+	.name	= "matrix-keypad",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &board_keypad_platform_data,
+	},
+};
+static void __init board_mkp_init(void)
+{
+	omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
+	omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
+	omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
+	omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
+	if (omap_has_menelaus()) {
+		omap_mux_init_signal("sdrc_a14.gpio0",
+			OMAP_PULL_ENA | OMAP_PULL_UP);
+		omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
+		omap_mux_init_signal("gpio_98", 0);
+		board_keypad_row_gpios[5] = 0;
+		board_keypad_col_gpios[2] = 15;
+		board_keypad_col_gpios[6] = 18;
+	} else {
+		omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
+		omap_mux_init_signal("gpio_100", 0);
+		omap_mux_init_signal("gpio_98", 0);
+	}
+	omap_mux_init_signal("gpio_90", 0);
+	omap_mux_init_signal("gpio_91", 0);
+	omap_mux_init_signal("gpio_36", 0);
+	omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
+	omap_mux_init_signal("gpio_97", 0);
+
+	platform_device_register(&board_keyboard);
+}
+#else
+static inline void board_mkp_init(void)
+{
+}
+#endif
+
+static struct mtd_partition h4_partitions[] = {
+	/* bootloader (U-Boot, etc) in first sector */
+	{
+	      .name		= "bootloader",
+	      .offset		= 0,
+	      .size		= SZ_128K,
+	      .mask_flags	= MTD_WRITEABLE, /* force read-only */
+	},
+	/* bootloader params in the next sector */
+	{
+	      .name		= "params",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= SZ_128K,
+	      .mask_flags	= 0,
+	},
+	/* kernel */
+	{
+	      .name		= "kernel",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= SZ_2M,
+	      .mask_flags	= 0
+	},
+	/* file system */
+	{
+	      .name		= "filesystem",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= MTDPART_SIZ_FULL,
+	      .mask_flags	= 0
+	}
+};
+
+static struct physmap_flash_data h4_flash_data = {
+	.width		= 2,
+	.parts		= h4_partitions,
+	.nr_parts	= ARRAY_SIZE(h4_partitions),
+};
+
+static struct resource h4_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device h4_flash_device = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &h4_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &h4_flash_resource,
+};
+
+static struct platform_device *h4_devices[] __initdata = {
+	&h4_flash_device,
+};
+
+static struct panel_generic_dpi_data h4_panel_data = {
+	.name			= "h4",
+};
+
+static struct omap_dss_device h4_lcd_device = {
+	.name			= "lcd",
+	.driver_name		= "generic_dpi_panel",
+	.type			= OMAP_DISPLAY_TYPE_DPI,
+	.phy.dpi.data_lines	= 16,
+	.data			= &h4_panel_data,
+};
+
+static struct omap_dss_device *h4_dss_devices[] = {
+	&h4_lcd_device,
+};
+
+static struct omap_dss_board_info h4_dss_data = {
+	.num_devices	= ARRAY_SIZE(h4_dss_devices),
+	.devices	= h4_dss_devices,
+	.default_device	= &h4_lcd_device,
+};
+
+/* 2420 Sysboot setup (2430 is different) */
+static u32 get_sysboot_value(void)
+{
+	return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
+		(OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
+		 OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
+		 OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
+}
+
+/* H4-2420's always used muxed mode, H4-2422's always use non-muxed
+ *
+ * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
+ *  correctly.  The macro needs to look at production_id not just hawkeye.
+ */
+static u32 is_gpmc_muxed(void)
+{
+	u32 mux;
+	mux = get_sysboot_value();
+	if ((mux & 0xF) == 0xd)
+		return 1;	/* NAND config (could be either) */
+	if (mux & 0x2)		/* if mux'ed */
+		return 1;
+	else
+		return 0;
+}
+
+#if IS_ENABLED(CONFIG_SMC91X)
+
+static struct omap_smc91x_platform_data board_smc91x_data = {
+	.cs		= 1,
+	.gpio_irq	= 92,
+	.flags		= GPMC_TIMINGS_SMC91C96 | IORESOURCE_IRQ_LOWLEVEL,
+};
+
+static void __init board_smc91x_init(void)
+{
+	if (is_gpmc_muxed())
+		board_smc91x_data.flags |= GPMC_MUX_ADD_DATA;
+
+	omap_mux_init_gpio(board_smc91x_data.gpio_irq, OMAP_PIN_INPUT);
+	gpmc_smc91x_init(&board_smc91x_data);
+}
+
+#else
+
+static inline void board_smc91x_init(void)
+{
+}
+
+#endif
+
+static void __init h4_init_flash(void)
+{
+	unsigned long base;
+
+	if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
+		printk("Can't request GPMC CS for flash\n");
+		return;
+	}
+	h4_flash_resource.start	= base;
+	h4_flash_resource.end	= base + SZ_64M - 1;
+}
+
+static struct at24_platform_data m24c01 = {
+	.byte_len	= SZ_1K / 8,
+	.page_size	= 16,
+};
+
+static struct i2c_board_info __initdata h4_i2c_board_info[] = {
+	{
+		I2C_BOARD_INFO("isp1301_omap", 0x2d),
+	},
+	{	/* EEPROM on mainboard */
+		I2C_BOARD_INFO("24c01", 0x52),
+		.platform_data	= &m24c01,
+	},
+	{	/* EEPROM on cpu card */
+		I2C_BOARD_INFO("24c01", 0x57),
+		.platform_data	= &m24c01,
+	},
+};
+
+#ifdef CONFIG_OMAP_MUX
+static struct omap_board_mux board_mux[] __initdata = {
+	{ .reg_offset = OMAP_MUX_TERMINATOR },
+};
+#endif
+
+static void __init omap_h4_init(void)
+{
+	omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
+
+	/*
+	 * Make sure the serial ports are muxed on at this point.
+	 * You have to mux them off in device drivers later on
+	 * if not needed.
+	 */
+
+	board_mkp_init();
+	h4_i2c_board_info[0].irq = gpio_to_irq(125);
+	i2c_register_board_info(1, h4_i2c_board_info,
+			ARRAY_SIZE(h4_i2c_board_info));
+
+	platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
+	omap_serial_init();
+	omap_sdrc_init(NULL, NULL);
+	h4_init_flash();
+	board_smc91x_init();
+
+	omap_display_init(&h4_dss_data);
+}
+
+MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
+	/* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
+	.atag_offset	= 0x100,
+	.reserve	= omap_reserve,
+	.map_io		= omap242x_map_io,
+	.init_early	= omap2420_init_early,
+	.init_irq	= omap2_init_irq,
+	.handle_irq	= omap2_intc_handle_irq,
+	.init_machine	= omap_h4_init,
+	.init_late	= omap2420_init_late,
+	.init_time	= omap2_sync32k_timer_init,
+	.restart	= omap2xxx_restart,
+MACHINE_END
-- 
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