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-rw-r--r--arch/arm/mach-pxa/colibri-pxa3xx.c147
1 files changed, 147 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/colibri-pxa3xx.c b/arch/arm/mach-pxa/colibri-pxa3xx.c
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+++ b/arch/arm/mach-pxa/colibri-pxa3xx.c
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+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * arch/arm/mach-pxa/colibri-pxa3xx.c
+ *
+ * Common functions for all Toradex PXA3xx modules
+ *
+ * Daniel Mack <daniel@caiaq.de>
+ */
+
+#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 <linux/sizes.h>
+#include <asm/system_info.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include "pxa3xx-regs.h"
+#include "mfp-pxa300.h"
+#include "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 IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
+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 = {
+ .keep_config = 1,
+ .parts = colibri_nand_partitions,
+ .nr_parts = ARRAY_SIZE(colibri_nand_partitions),
+};
+
+void __init colibri_pxa3xx_init_nand(void)
+{
+ pxa3xx_set_nand_info(&colibri_nand_info);
+}
+#endif
+