diff options
Diffstat (limited to 'arch/arm/mach-pxa/colibri-pxa3xx.c')
| -rw-r--r-- | arch/arm/mach-pxa/colibri-pxa3xx.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/colibri-pxa3xx.c b/arch/arm/mach-pxa/colibri-pxa3xx.c new file mode 100644 index 000000000..8240291ab --- /dev/null +++ b/arch/arm/mach-pxa/colibri-pxa3xx.c @@ -0,0 +1,153 @@ +/* + * arch/arm/mach-pxa/colibri-pxa3xx.c + * + * Common functions for all Toradex PXA3xx modules + * + * Daniel Mack <daniel@caiaq.de> + * + * 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/init.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/gpio.h> +#include <linux/etherdevice.h> +#include <asm/mach-types.h> +#include <mach/hardware.h> +#include <asm/sizes.h> +#include <asm/system_info.h> +#include <asm/mach/arch.h> +#include <asm/mach/irq.h> +#include <mach/pxa3xx-regs.h> +#include <mach/mfp-pxa300.h> +#include <mach/colibri.h> +#include <linux/platform_data/mmc-pxamci.h> +#include <linux/platform_data/video-pxafb.h> +#include <linux/platform_data/mtd-nand-pxa3xx.h> + +#include "generic.h" +#include "devices.h" + +#if defined(CONFIG_AX88796) +#define ETHER_ADDR_LEN 6 +static u8 ether_mac_addr[ETHER_ADDR_LEN]; + +void __init colibri_pxa3xx_init_eth(struct ax_plat_data *plat_data) +{ + int i; + u64 serial = ((u64) system_serial_high << 32) | system_serial_low; + + /* + * If the bootloader passed in a serial boot tag, which contains a + * valid ethernet MAC, pass it to the interface. Toradex ships the + * modules with their own bootloader which provides a valid MAC + * this way. + */ + + for (i = 0; i < ETHER_ADDR_LEN; i++) { + ether_mac_addr[i] = serial & 0xff; + serial >>= 8; + } + + if (is_valid_ether_addr(ether_mac_addr)) { + plat_data->flags |= AXFLG_MAC_FROMPLATFORM; + plat_data->mac_addr = ether_mac_addr; + printk(KERN_INFO "%s(): taking MAC from serial boot tag\n", + __func__); + } else { + plat_data->flags |= AXFLG_MAC_FROMDEV; + printk(KERN_INFO "%s(): no valid serial boot tag found, " + "taking MAC from device\n", __func__); + } +} +#endif + +#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) +static int lcd_bl_pin; + +/* + * LCD panel (Sharp LQ043T3DX02) + */ +static void colibri_lcd_backlight(int on) +{ + gpio_set_value(lcd_bl_pin, !!on); +} + +static struct pxafb_mode_info sharp_lq43_mode = { + .pixclock = 101936, + .xres = 480, + .yres = 272, + .bpp = 32, + .depth = 18, + .hsync_len = 41, + .left_margin = 2, + .right_margin = 2, + .vsync_len = 10, + .upper_margin = 2, + .lower_margin = 2, + .sync = 0, + .cmap_greyscale = 0, +}; + +static struct pxafb_mach_info sharp_lq43_info = { + .modes = &sharp_lq43_mode, + .num_modes = 1, + .cmap_inverse = 0, + .cmap_static = 0, + .lcd_conn = LCD_COLOR_TFT_18BPP, + .pxafb_backlight_power = colibri_lcd_backlight, +}; + +void __init colibri_pxa3xx_init_lcd(int bl_pin) +{ + lcd_bl_pin = bl_pin; + gpio_request(bl_pin, "lcd backlight"); + gpio_direction_output(bl_pin, 0); + pxa_set_fb_info(NULL, &sharp_lq43_info); +} +#endif + +#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE) +static struct mtd_partition colibri_nand_partitions[] = { + { + .name = "bootloader", + .offset = 0, + .size = SZ_512K, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = SZ_4M, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "reserved", + .offset = MTDPART_OFS_APPEND, + .size = SZ_1M, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "fs", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct pxa3xx_nand_platform_data colibri_nand_info = { + .enable_arbiter = 1, + .keep_config = 1, + .num_cs = 1, + .parts[0] = colibri_nand_partitions, + .nr_parts[0] = ARRAY_SIZE(colibri_nand_partitions), +}; + +void __init colibri_pxa3xx_init_nand(void) +{ + pxa3xx_set_nand_info(&colibri_nand_info); +} +#endif + |