diff --git a/arch/mips/loongson32/ls1b/board.c b/arch/mips/loongson32/ls1b/board.c
index 01aceaace314..447b15fc0a2b 100644
--- a/arch/mips/loongson32/ls1b/board.c
+++ b/arch/mips/loongson32/ls1b/board.c
@@ -16,30 +16,6 @@
 #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",
@@ -64,13 +40,11 @@ static const struct gpio_led_platform_data ls1x_led_pdata __initconst = {
 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,
 };
@@ -78,8 +52,6 @@ static struct platform_device *ls1b_platform_devices[] __initdata = {
 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);