v4.19.13 snapshot.
diff --git a/arch/mips/loongson32/ls1b/board.c b/arch/mips/loongson32/ls1b/board.c
new file mode 100644
index 0000000..01aceaa
--- /dev/null
+++ b/arch/mips/loongson32/ls1b/board.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2011-2016 Zhang, Keguang <keguang.zhang@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/leds.h>
+#include <linux/mtd/partitions.h>
+#include <linux/sizes.h>
+
+#include <loongson1.h>
+#include <dma.h>
+#include <nand.h>
+#include <platform.h>
+
+struct plat_ls1x_dma ls1x_dma_pdata = {
+ .nr_channels = 3,
+};
+
+static struct mtd_partition ls1x_nand_parts[] = {
+ {
+ .name = "kernel",
+ .offset = 0,
+ .size = SZ_16M,
+ },
+ {
+ .name = "rootfs",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+struct plat_ls1x_nand ls1x_nand_pdata = {
+ .parts = ls1x_nand_parts,
+ .nr_parts = ARRAY_SIZE(ls1x_nand_parts),
+ .hold_cycle = 0x2,
+ .wait_cycle = 0xc,
+};
+
+static const struct gpio_led ls1x_gpio_leds[] __initconst = {
+ {
+ .name = "LED9",
+ .default_trigger = "heartbeat",
+ .gpio = 38,
+ .active_low = 1,
+ .default_state = LEDS_GPIO_DEFSTATE_OFF,
+ }, {
+ .name = "LED6",
+ .default_trigger = "nand-disk",
+ .gpio = 39,
+ .active_low = 1,
+ .default_state = LEDS_GPIO_DEFSTATE_OFF,
+ },
+};
+
+static const struct gpio_led_platform_data ls1x_led_pdata __initconst = {
+ .num_leds = ARRAY_SIZE(ls1x_gpio_leds),
+ .leds = ls1x_gpio_leds,
+};
+
+static struct platform_device *ls1b_platform_devices[] __initdata = {
+ &ls1x_uart_pdev,
+ &ls1x_cpufreq_pdev,
+ &ls1x_dma_pdev,
+ &ls1x_eth0_pdev,
+ &ls1x_eth1_pdev,
+ &ls1x_ehci_pdev,
+ &ls1x_gpio0_pdev,
+ &ls1x_gpio1_pdev,
+ &ls1x_nand_pdev,
+ &ls1x_rtc_pdev,
+ &ls1x_wdt_pdev,
+};
+
+static int __init ls1b_platform_init(void)
+{
+ ls1x_serial_set_uartclk(&ls1x_uart_pdev);
+ ls1x_dma_set_platdata(&ls1x_dma_pdata);
+ ls1x_nand_set_platdata(&ls1x_nand_pdata);
+
+ gpio_led_register_device(-1, &ls1x_led_pdata);
+
+ return platform_add_devices(ls1b_platform_devices,
+ ARRAY_SIZE(ls1b_platform_devices));
+}
+
+arch_initcall(ls1b_platform_init);