1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 *  arch/arm/mach-pxa/colibri-pxa3xx.c
4 *
5 *  Common functions for all Toradex PXA3xx modules
6 *
7 *  Daniel Mack <daniel@caiaq.de>
8 */
9
10#include <linux/init.h>
11#include <linux/kernel.h>
12#include <linux/platform_device.h>
13#include <linux/gpio.h>
14#include <linux/etherdevice.h>
15#include <asm/mach-types.h>
16#include <mach/hardware.h>
17#include <linux/sizes.h>
18#include <asm/system_info.h>
19#include <asm/mach/arch.h>
20#include <asm/mach/irq.h>
21#include <mach/pxa3xx-regs.h>
22#include "mfp-pxa300.h"
23#include "colibri.h"
24#include <linux/platform_data/mmc-pxamci.h>
25#include <linux/platform_data/video-pxafb.h>
26#include <linux/platform_data/mtd-nand-pxa3xx.h>
27
28#include "generic.h"
29#include "devices.h"
30
31#if defined(CONFIG_AX88796)
32#define ETHER_ADDR_LEN 6
33static u8 ether_mac_addr[ETHER_ADDR_LEN];
34
35void __init colibri_pxa3xx_init_eth(struct ax_plat_data *plat_data)
36{
37	int i;
38	u64 serial = ((u64) system_serial_high << 32) | system_serial_low;
39
40	/*
41	 * If the bootloader passed in a serial boot tag, which contains a
42	 * valid ethernet MAC, pass it to the interface. Toradex ships the
43	 * modules with their own bootloader which provides a valid MAC
44	 * this way.
45	 */
46
47	for (i = 0; i < ETHER_ADDR_LEN; i++) {
48		ether_mac_addr[i] = serial & 0xff;
49		serial >>= 8;
50	}
51
52	if (is_valid_ether_addr(ether_mac_addr)) {
53		plat_data->flags |= AXFLG_MAC_FROMPLATFORM;
54		plat_data->mac_addr = ether_mac_addr;
55		printk(KERN_INFO "%s(): taking MAC from serial boot tag\n",
56			__func__);
57	} else {
58		plat_data->flags |= AXFLG_MAC_FROMDEV;
59		printk(KERN_INFO "%s(): no valid serial boot tag found, "
60			"taking MAC from device\n", __func__);
61	}
62}
63#endif
64
65#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
66static int lcd_bl_pin;
67
68/*
69 * LCD panel (Sharp LQ043T3DX02)
70 */
71static void colibri_lcd_backlight(int on)
72{
73	gpio_set_value(lcd_bl_pin, !!on);
74}
75
76static struct pxafb_mode_info sharp_lq43_mode = {
77	.pixclock	= 101936,
78	.xres		= 480,
79	.yres		= 272,
80	.bpp		= 32,
81	.depth		= 18,
82	.hsync_len      = 41,
83	.left_margin    = 2,
84	.right_margin   = 2,
85	.vsync_len      = 10,
86	.upper_margin   = 2,
87	.lower_margin   = 2,
88	.sync	   	= 0,
89	.cmap_greyscale = 0,
90};
91
92static struct pxafb_mach_info sharp_lq43_info = {
93	.modes		= &sharp_lq43_mode,
94	.num_modes	= 1,
95	.cmap_inverse	= 0,
96	.cmap_static	= 0,
97	.lcd_conn	= LCD_COLOR_TFT_18BPP,
98	.pxafb_backlight_power = colibri_lcd_backlight,
99};
100
101void __init colibri_pxa3xx_init_lcd(int bl_pin)
102{
103	lcd_bl_pin = bl_pin;
104	gpio_request(bl_pin, "lcd backlight");
105	gpio_direction_output(bl_pin, 0);
106	pxa_set_fb_info(NULL, &sharp_lq43_info);
107}
108#endif
109
110#if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
111static struct mtd_partition colibri_nand_partitions[] = {
112	{
113		.name        = "bootloader",
114		.offset      = 0,
115		.size        = SZ_512K,
116		.mask_flags  = MTD_WRITEABLE, /* force read-only */
117	},
118	{
119		.name        = "kernel",
120		.offset      = MTDPART_OFS_APPEND,
121		.size        = SZ_4M,
122		.mask_flags  = MTD_WRITEABLE, /* force read-only */
123	},
124	{
125		.name        = "reserved",
126		.offset      = MTDPART_OFS_APPEND,
127		.size        = SZ_1M,
128		.mask_flags  = MTD_WRITEABLE, /* force read-only */
129	},
130	{
131		.name        = "fs",
132		.offset      = MTDPART_OFS_APPEND,
133		.size        = MTDPART_SIZ_FULL,
134	},
135};
136
137static struct pxa3xx_nand_platform_data colibri_nand_info = {
138	.keep_config	= 1,
139	.parts		= colibri_nand_partitions,
140	.nr_parts	= ARRAY_SIZE(colibri_nand_partitions),
141};
142
143void __init colibri_pxa3xx_init_nand(void)
144{
145	pxa3xx_set_nand_info(&colibri_nand_info);
146}
147#endif
148
149