7576594c8e
The "enable arbiter" bit is available only for pxa3xx based platforms but it was experimentally shown that even if this bit is reserved, some Marvell platforms (64-bit) actually need it to be set. The driver always set this bit regardless of this property, which is harmless. Then this property is not needed. The "num_cs" field is always 1 and for a good reason, the old driver (pxa3xx_nand.c) could only handle one. The new driver that replaces it (marvell_nand.c) can handle more, but better use device tree for such description. As there is only one available chip select, there is no need for an array of partitions neither an array of partition numbers. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
152 lines
3.6 KiB
C
152 lines
3.6 KiB
C
/*
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* arch/arm/mach-pxa/colibri-pxa3xx.c
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*
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* Common functions for all Toradex PXA3xx modules
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*
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* Daniel Mack <daniel@caiaq.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/etherdevice.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <asm/sizes.h>
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#include <asm/system_info.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/irq.h>
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#include <mach/pxa3xx-regs.h>
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#include "mfp-pxa300.h"
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#include "colibri.h"
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#include <linux/platform_data/mmc-pxamci.h>
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#include <linux/platform_data/video-pxafb.h>
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#include <linux/platform_data/mtd-nand-pxa3xx.h>
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#include "generic.h"
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#include "devices.h"
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#if defined(CONFIG_AX88796)
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#define ETHER_ADDR_LEN 6
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static u8 ether_mac_addr[ETHER_ADDR_LEN];
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void __init colibri_pxa3xx_init_eth(struct ax_plat_data *plat_data)
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{
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int i;
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u64 serial = ((u64) system_serial_high << 32) | system_serial_low;
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/*
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* If the bootloader passed in a serial boot tag, which contains a
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* valid ethernet MAC, pass it to the interface. Toradex ships the
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* modules with their own bootloader which provides a valid MAC
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* this way.
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*/
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for (i = 0; i < ETHER_ADDR_LEN; i++) {
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ether_mac_addr[i] = serial & 0xff;
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serial >>= 8;
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}
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if (is_valid_ether_addr(ether_mac_addr)) {
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plat_data->flags |= AXFLG_MAC_FROMPLATFORM;
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plat_data->mac_addr = ether_mac_addr;
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printk(KERN_INFO "%s(): taking MAC from serial boot tag\n",
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__func__);
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} else {
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plat_data->flags |= AXFLG_MAC_FROMDEV;
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printk(KERN_INFO "%s(): no valid serial boot tag found, "
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"taking MAC from device\n", __func__);
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}
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}
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#endif
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#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
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static int lcd_bl_pin;
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/*
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* LCD panel (Sharp LQ043T3DX02)
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*/
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static void colibri_lcd_backlight(int on)
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{
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gpio_set_value(lcd_bl_pin, !!on);
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}
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static struct pxafb_mode_info sharp_lq43_mode = {
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.pixclock = 101936,
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.xres = 480,
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.yres = 272,
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.bpp = 32,
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.depth = 18,
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.hsync_len = 41,
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.left_margin = 2,
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.right_margin = 2,
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.vsync_len = 10,
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.upper_margin = 2,
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.lower_margin = 2,
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.sync = 0,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info sharp_lq43_info = {
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.modes = &sharp_lq43_mode,
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.num_modes = 1,
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.cmap_inverse = 0,
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.cmap_static = 0,
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.lcd_conn = LCD_COLOR_TFT_18BPP,
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.pxafb_backlight_power = colibri_lcd_backlight,
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};
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void __init colibri_pxa3xx_init_lcd(int bl_pin)
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{
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lcd_bl_pin = bl_pin;
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gpio_request(bl_pin, "lcd backlight");
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gpio_direction_output(bl_pin, 0);
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pxa_set_fb_info(NULL, &sharp_lq43_info);
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}
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#endif
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#if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
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static struct mtd_partition colibri_nand_partitions[] = {
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{
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.name = "bootloader",
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.offset = 0,
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.size = SZ_512K,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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{
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_4M,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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{
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.name = "reserved",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_1M,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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{
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.name = "fs",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct pxa3xx_nand_platform_data colibri_nand_info = {
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.keep_config = 1,
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.parts = colibri_nand_partitions,
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.nr_parts = ARRAY_SIZE(colibri_nand_partitions),
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};
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void __init colibri_pxa3xx_init_nand(void)
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{
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pxa3xx_set_nand_info(&colibri_nand_info);
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}
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#endif
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