board/amlogic/gxl_s905x_p0/gxl_s905x_p0.c

/*
 *
 * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

#include <common.h>
#include <malloc.h>
#include <errno.h>
#include <environment.h>
#include <fdt_support.h>
#include <libfdt.h>
#ifdef CONFIG_SYS_I2C_AML
#include <aml_i2c.h>
#include <asm/arch/secure_apb.h>
#endif
#include <amlogic/canvas.h>
#ifdef CONFIG_AML_VPU
#include <vpu.h>
#endif
#include <vpp.h>
#ifdef CONFIG_AML_V2_FACTORY_BURN
#include <amlogic/aml_v2_burning.h>
#endif// #ifdef CONFIG_AML_V2_FACTORY_BURN
#ifdef CONFIG_AML_HDMITX20
#include <amlogic/hdmi.h>
#endif
#include <asm/arch/eth_setup.h>
#include <phy.h>
#include <asm/cpu_id.h>
#include <asm/arch/mailbox.h>
#ifdef DTB_BIND_KERNEL
#include "storage.h"
#endif

DECLARE_GLOBAL_DATA_PTR;

//new static eth setup
struct eth_board_socket*  eth_board_skt;

int serial_set_pin_port(unsigned long port_base)
{
    //UART in "Always On Module"
    //GPIOAO_0==tx,GPIOAO_1==rx
    //setbits_le32(P_AO_RTI_PIN_MUX_REG,3<<11);
    return 0;
}

int dram_init(void)
{
	gd->ram_size = PHYS_SDRAM_1_SIZE;
	return 0;
}

/* secondary_boot_func
 * this function should be write with asm, here, is is only for compiling pass
 * */
void secondary_boot_func(void)
{
}
void internalPhyConfig(struct phy_device *phydev)
{
	/*Enable Analog and DSP register Bank access by*/
	phy_write(phydev, MDIO_DEVAD_NONE, 0x14, 0x0000);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x14, 0x0400);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x14, 0x0000);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x14, 0x0400);
	/*Write Analog register 23*/
	phy_write(phydev, MDIO_DEVAD_NONE, 0x17, 0x8E0D);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x14, 0x4417);
	/*Enable fractional PLL*/
	phy_write(phydev, MDIO_DEVAD_NONE, 0x17, 0x0005);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x14, 0x5C1B);
	//Programme fraction FR_PLL_DIV1
	phy_write(phydev, MDIO_DEVAD_NONE, 0x17, 0x029A);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x14, 0x5C1D);
	//## programme fraction FR_PLL_DiV1
	phy_write(phydev, MDIO_DEVAD_NONE, 0x17, 0xAAAA);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x14, 0x5C1C);
}


static void setup_net_chip(void)
{
	eth_aml_reg0_t eth_reg0;

	eth_reg0.d32 = 0;
	eth_reg0.b.phy_intf_sel = 0;
	eth_reg0.b.data_endian = 0;
	eth_reg0.b.desc_endian = 0;
	eth_reg0.b.rx_clk_rmii_invert = 0;
	eth_reg0.b.rgmii_tx_clk_src = 0;
	eth_reg0.b.rgmii_tx_clk_phase = 0;
	eth_reg0.b.rgmii_tx_clk_ratio = 0;
	eth_reg0.b.phy_ref_clk_enable = 0;
	eth_reg0.b.clk_rmii_i_invert = 1;
	eth_reg0.b.clk_en = 1;
	eth_reg0.b.adj_enable = 0;
	eth_reg0.b.adj_setup = 0;
	eth_reg0.b.adj_delay = 0;
	eth_reg0.b.adj_skew = 0;
	eth_reg0.b.cali_start = 0;
	eth_reg0.b.cali_rise = 0;
	eth_reg0.b.cali_sel = 0;
	eth_reg0.b.rgmii_rx_reuse = 0;
	eth_reg0.b.eth_urgent = 0;
	setbits_le32(P_PREG_ETH_REG0, eth_reg0.d32);// rmii mode
	*P_PREG_ETH_REG2 = 0x10110181;
	*P_PREG_ETH_REG3 = 0xe409087f;
	setbits_le32(HHI_GCLK_MPEG1,1<<3);
	/* power on memory */
	clrbits_le32(HHI_MEM_PD_REG0, (1 << 3) | (1<<2));

}


extern struct eth_board_socket* eth_board_setup(char *name);
extern int designware_initialize(ulong base_addr, u32 interface);
int board_eth_init(bd_t *bis)
{
	setup_net_chip();
	udelay(1000);
	designware_initialize(ETH_BASE, PHY_INTERFACE_MODE_RMII);

	return 0;
}

#if CONFIG_AML_SD_EMMC
#include <mmc.h>
#include <asm/arch/sd_emmc.h>
static int  sd_emmc_init(unsigned port)
{
    switch (port)
	{
		case SDIO_PORT_A:
			break;
		case SDIO_PORT_B:
			//todo add card detect
			//setbits_le32(P_PREG_PAD_GPIO5_EN_N,1<<29);//CARD_6
			break;
		case SDIO_PORT_C:
			//enable pull up
			//clrbits_le32(P_PAD_PULL_UP_REG3, 0xff<<0);
			break;
		default:
			break;
	}

	return cpu_sd_emmc_init(port);
}

extern unsigned sd_debug_board_1bit_flag;
static int  sd_emmc_detect(unsigned port)
{
	int ret;
    switch (port) {

	case SDIO_PORT_A:
			break;
	case SDIO_PORT_B:
		setbits_le32(P_PREG_PAD_GPIO2_EN_N, 1 << 26);//CARD_6
		ret = readl(P_PREG_PAD_GPIO2_I) & (1 << 26) ? 0 : 1;
		printf("%s\n", ret ? "card in" : "card out");
		if ((readl(P_PERIPHS_PIN_MUX_6) & (3 << 8))) { //if uart pinmux set, debug board in
			if (!(readl(P_PREG_PAD_GPIO2_I) & (1 << 24))) {
				printf("sdio debug board detected, sd card with 1bit mode\n");
				sd_debug_board_1bit_flag = 1;
			} else{
				printf("sdio debug board detected, no sd card in\n");
				sd_debug_board_1bit_flag = 0;
				return 1;
			}
		}
		break;
	default:
		break;
	}
	return 0;
}


static void sd_emmc_pwr_prepare(unsigned port)
{
	cpu_sd_emmc_pwr_prepare(port);
}

static void sd_emmc_pwr_on(unsigned port)
{
    switch (port)
	{
		case SDIO_PORT_A:
			break;
		case SDIO_PORT_B:
//            clrbits_le32(P_PREG_PAD_GPIO5_O,(1<<31)); //CARD_8
//            clrbits_le32(P_PREG_PAD_GPIO5_EN_N,(1<<31));
			/// @todo NOT FINISH
			break;
		case SDIO_PORT_C:
			break;
		default:
			break;
	}
	return;
}
static void sd_emmc_pwr_off(unsigned port)
{
	/// @todo NOT FINISH
    switch (port)
	{
		case SDIO_PORT_A:
			break;
		case SDIO_PORT_B:
//            setbits_le32(P_PREG_PAD_GPIO5_O,(1<<31)); //CARD_8
//            clrbits_le32(P_PREG_PAD_GPIO5_EN_N,(1<<31));
			break;
		case SDIO_PORT_C:
			break;
				default:
			break;
	}
	return;
}

// #define CONFIG_TSD      1
static void board_mmc_register(unsigned port)
{
	struct aml_card_sd_info *aml_priv=cpu_sd_emmc_get(port);
    if (aml_priv == NULL)
		return;

	aml_priv->sd_emmc_init=sd_emmc_init;
	aml_priv->sd_emmc_detect=sd_emmc_detect;
	aml_priv->sd_emmc_pwr_off=sd_emmc_pwr_off;
	aml_priv->sd_emmc_pwr_on=sd_emmc_pwr_on;
	aml_priv->sd_emmc_pwr_prepare=sd_emmc_pwr_prepare;
	aml_priv->desc_buf = malloc(NEWSD_MAX_DESC_MUN*(sizeof(struct sd_emmc_desc_info)));

	if (NULL == aml_priv->desc_buf)
		printf(" desc_buf Dma alloc Fail!\n");
	else
		printf("aml_priv->desc_buf = 0x%p\n",aml_priv->desc_buf);

	sd_emmc_register(aml_priv);
}
int board_mmc_init(bd_t	*bis)
{
	__maybe_unused struct mmc *mmc;
#ifdef CONFIG_VLSI_EMULATOR
	//board_mmc_register(SDIO_PORT_A);
#else
	//board_mmc_register(SDIO_PORT_B);
#endif
	board_mmc_register(SDIO_PORT_B);
	board_mmc_register(SDIO_PORT_C);
//	board_mmc_register(SDIO_PORT_B1);
#if defined(CONFIG_ENV_IS_NOWHERE) && defined(CONFIG_AML_SD_EMMC)
	/* try emmc here. */
	mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
	if (!mmc)
		printf("%s() %d: No MMC found\n", __func__, __LINE__);
	else if (mmc_init(mmc))
		printf("%s() %d: MMC init failed\n", __func__, __LINE__);
#endif
	return 0;
}

#ifdef CONFIG_SYS_I2C_AML
#if 0
static void board_i2c_set_pinmux(void){
	/*********************************************/
	/*                | I2C_Master_AO        |I2C_Slave            |       */
	/*********************************************/
	/*                | I2C_SCK                | I2C_SCK_SLAVE  |      */
	/* GPIOAO_4  | [AO_PIN_MUX: 6]     | [AO_PIN_MUX: 2]   |     */
	/*********************************************/
	/*                | I2C_SDA                 | I2C_SDA_SLAVE  |     */
	/* GPIOAO_5  | [AO_PIN_MUX: 5]     | [AO_PIN_MUX: 1]   |     */
	/*********************************************/

	//disable all other pins which share with I2C_SDA_AO & I2C_SCK_AO
	clrbits_le32(P_AO_RTI_PIN_MUX_REG, ((1<<2)|(1<<24)|(1<<1)|(1<<23)));
	//enable I2C MASTER AO pins
	setbits_le32(P_AO_RTI_PIN_MUX_REG,
	(MESON_I2C_MASTER_AO_GPIOAO_4_BIT | MESON_I2C_MASTER_AO_GPIOAO_5_BIT));

	udelay(10);
};
#endif
struct aml_i2c_platform g_aml_i2c_plat = {
	.wait_count         = 1000000,
	.wait_ack_interval  = 5,
	.wait_read_interval = 5,
	.wait_xfer_interval = 5,
	.master_no          = AML_I2C_MASTER_AO,
	.use_pio            = 0,
	.master_i2c_speed   = AML_I2C_SPPED_400K,
	.master_ao_pinmux = {
		.scl_reg    = (unsigned long)MESON_I2C_MASTER_AO_GPIOAO_4_REG,
		.scl_bit    = MESON_I2C_MASTER_AO_GPIOAO_4_BIT,
		.sda_reg    = (unsigned long)MESON_I2C_MASTER_AO_GPIOAO_5_REG,
		.sda_bit    = MESON_I2C_MASTER_AO_GPIOAO_5_BIT,
	}
};
#if 0
static void board_i2c_init(void)
{
	//set I2C pinmux with PCB board layout
	board_i2c_set_pinmux();

	//Amlogic I2C controller initialized
	//note: it must be call before any I2C operation
	aml_i2c_init();

	udelay(10);
}
#endif
#endif
#endif

#if defined(CONFIG_BOARD_EARLY_INIT_F)
int board_early_init_f(void){
	/*add board early init function here*/
	return 0;
}
#endif

#ifdef CONFIG_USB_XHCI_AMLOGIC_GXL
#include <asm/arch/usb-new.h>
#include <asm/arch/gpio.h>
#define CONFIG_GXL_USB_U2_PORT_NUM	2
#define CONFIG_GXL_USB_U3_PORT_NUM	0

struct amlogic_usb_config g_usb_config_GXL_skt={
	CONFIG_GXL_XHCI_BASE,
	USB_ID_MODE_HARDWARE,
	NULL,//gpio_set_vbus_power, //set_vbus_power
	CONFIG_GXL_USB_PHY2_BASE,
	CONFIG_GXL_USB_PHY3_BASE,
	CONFIG_GXL_USB_U2_PORT_NUM,
	CONFIG_GXL_USB_U3_PORT_NUM,
};
#endif /*CONFIG_USB_XHCI_AMLOGIC*/

#ifdef CONFIG_AML_HDMITX20
static void hdmi_tx_set_hdmi_5v(void)
{
	/*Power on VCC_5V for HDMI_5V*/
	clrbits_le32(P_PREG_PAD_GPIO1_EN_N, 1 << 23);
	clrbits_le32(P_PREG_PAD_GPIO1_O, 1 << 23);
}
#endif

int board_init(void)
{
    //Please keep CONFIG_AML_V2_FACTORY_BURN at first place of board_init
#ifdef CONFIG_AML_V2_FACTORY_BURN
	if ((0x1b8ec003 != readl(P_PREG_STICKY_REG2)) && (0x1b8ec004 != readl(P_PREG_STICKY_REG2))) {
		aml_try_factory_usb_burning(0, gd->bd);
	}
#endif// #ifdef CONFIG_AML_V2_FACTORY_BURN
	/*for LED*/
	//clear pinmux
	clrbits_le32(AO_RTI_PIN_MUX_REG, ((1<<3)|(1<<4)));
	clrbits_le32(AO_RTI_PIN_MUX_REG2, ((1<<1)|(1<<31)));
	//set output mode
	clrbits_le32(PREG_PAD_GPIO0_EN_N, (1 << 24));
	//set output 1
	setbits_le32(PREG_PAD_GPIO0_O, (1 << 24));

	/*Power on GPIOAO_2 for VCC_5V*/
	clrbits_le32(P_AO_GPIO_O_EN_N, ((1<<2)|(1<<18)));
#ifdef CONFIG_USB_XHCI_AMLOGIC_GXL
	board_usb_init(&g_usb_config_GXL_skt,BOARD_USB_MODE_HOST);
#endif /*CONFIG_USB_XHCI_AMLOGIC*/
	canvas_init();

#ifndef CONFIG_AML_IRDETECT_EARLY
#ifdef CONFIG_AML_HDMITX20
	hdmi_tx_set_hdmi_5v();
	hdmi_tx_init();
#endif
#endif
#ifdef CONFIG_AML_NAND
	extern int amlnf_init(unsigned char flag);
	amlnf_init(0);
#endif
	return 0;
}
#ifdef CONFIG_AML_IRDETECT_EARLY
#ifdef CONFIG_AML_HDMITX20
static int do_hdmi_init(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
	hdmi_tx_set_hdmi_5v();
	hdmi_tx_init();
return 0;
}

U_BOOT_CMD(hdmi_init, CONFIG_SYS_MAXARGS, 0, do_hdmi_init,
	   "HDMI_INIT sub-system",
	"hdmit init\n")
#endif
#endif
#ifdef CONFIG_BOARD_LATE_INIT
#define SAMPLE_BIT_MASK 0xfff
#define NUM 50
#define BASE_CH7 1843
#define P_SAR_ADC_REG0		    (volatile unsigned int *)0xc1108680
#define P_SAR_ADC_CHAN_LIST	(volatile unsigned int *)0xc1108684
#define P_SAR_ADC_REG3			(volatile unsigned int *)0xc110868c
#define P_SAR_ADC_FIFO_RD			(volatile unsigned int *)0xc1108698
#define P_SAR_ADC_DETECT_IDLE_SW	(volatile unsigned int *)0xc11086a4
#define P_SAR_ADC_REG13			(volatile unsigned int *)0xc11086b4
#if 0
#define dbgv(fmt, ...) printf(fmt, ##__VA_ARGS__)
#else
#define dbgv(fmt, ...)
#endif
void quicksort1(unsigned int a[], int numsize)
{
	int i = 0, j = numsize-1;
	int val = a[0];
	if (numsize > 1) {
		while (i < j) {
			for (; j > i; j--)
				if (a[j] < val) {
					a[i] = a[j];
					break;
				}
			for (; i < j; i++)
				if (a[i] > val) {
					a[j] = a[i];
					break;
				}
		}
	a[i] = val;
	quicksort1(a, i);
	quicksort1(a+i+1, numsize-1-i);
}
}
int check_vref(void)
{
	int i,count;
	unsigned int value[50];
	unsigned int value7=0;
	unsigned int bak, bak_reg3;
	unsigned int vref_efuse = (readl(SEC_AO_SEC_SD_CFG12)>>19)&(0x1f);

	if (!vref_efuse) {
		dbgv("This chip has no FT vref, no need to check, PASS\n");
		return 0;
	}
	//run_command("md 0xc1108680 0x10", 0);
	dbgv("SEC_AO_SEC_SD_CFG12: 0x%x\n",readl(SEC_AO_SEC_SD_CFG12));
	dbgv("vref_efuse: %d\n",vref_efuse);

	dbgv("P_SAR_ADC_REG13: 0x%x\n",readl(P_SAR_ADC_REG13));
	bak = (readl(P_SAR_ADC_REG13)>>8)&0x3f; /*back up SAR_ADC_REG13[13:8]*/
	writel((readl(P_SAR_ADC_REG13)&(~(0x3f<<8)))|(vref_efuse<<9), P_SAR_ADC_REG13);
	dbgv("P_SAR_ADC_REG13: 0x%x\n",readl(P_SAR_ADC_REG13));
	writel(0x00000007, P_SAR_ADC_CHAN_LIST);/*ch7*/
	//writel(0xc000c|(0x7<<23)|(0x7<<7), P_SAR_ADC_DETECT_IDLE_SW);/*channel 7*/
	bak_reg3 = readl(P_SAR_ADC_REG3);
	writel((readl(P_SAR_ADC_REG3)&(~(0x7<<23)))|(0x2<<23), P_SAR_ADC_REG3);/*AVDD18/2*/
	dbgv("P_SAR_ADC_REG13: 0x%x\n",readl(P_SAR_ADC_REG13));
	//run_command("md 0xc1108680 0x10", 0);
	for (i=0;i<NUM;i++) {
		writel((readl(P_SAR_ADC_REG0)&(~(1<<0))), P_SAR_ADC_REG0);
		writel((readl(P_SAR_ADC_REG0)|(1<<0)), P_SAR_ADC_REG0);
		writel((readl(P_SAR_ADC_REG0)|(1<<2)), P_SAR_ADC_REG0);/*start sample*/
		count = 0;
		do {
			udelay(20);
			count++;
		} while ((readl(P_SAR_ADC_REG0) & (0x7<<28))
		&& (count < 100));/*finish sample?*/
		if (count == 100) {
			printf("%s : ch7 wait finish sample timeout!\n",__func__);
			return -1;
		}
		value[i] = readl(P_SAR_ADC_FIFO_RD); /*read saradc*/
		if (((value[i]>>12) & 0x7) == 0x7)
			value[i] = value[i]&SAMPLE_BIT_MASK;
		else {
			printf("%s : not ch7! sample err!\n",__func__);
			return -1;
		}
	}
	quicksort1(value, NUM);
	for (i = 0; i < NUM; i++)
		dbgv("%d ", value[i]);
	dbgv("\n");
	for (i = 2; i < NUM-2; i++)
		value7 += value[i];
	value7 = value7/(NUM-4);
	dbgv("the average ch7 adc=%d\n", value7);
	dbgv("vref_efuse: %d\n",vref_efuse);
	if ((value7 < (BASE_CH7*94/100)) || (value7 > (BASE_CH7*106/100))) { //1843
		printf("the average ch7 : %d out of range: %d ~ %d\n",
			value7, (BASE_CH7*94/100), (BASE_CH7*106/100));
		printf("replace FT vref...\n");
		thermal_calibration(4, bak>>1); /*[13:9]*/
	}
	/*write back SAR_ADC_REG13[13:8]*/
	writel(((readl(P_SAR_ADC_REG13))&(~(0x3f<<8)))|
				((bak & 0x3f)<<8),
				P_SAR_ADC_REG13);
	writel(bak_reg3, P_SAR_ADC_REG3);
	dbgv("P_SAR_ADC_REG13: 0x%x\n",readl(P_SAR_ADC_REG13));
	dbgv("SEC_AO_SEC_SD_CFG12: 0x%x\n",readl(SEC_AO_SEC_SD_CFG12));
	//run_command("md 0xc1108680 0x10", 0);
	return 0;
}

int board_late_init(void){

	//update env before anyone using it
	run_command("get_rebootmode; echo reboot_mode=${reboot_mode}; "\
			"if test ${reboot_mode} = factory_reset; then "\
			"defenv_reserv aml_dt;setenv upgrade_step 2;save; fi;", 0);
	run_command("if itest ${upgrade_step} == 1; then "\
				"defenv_reserv; setenv upgrade_step 2; saveenv; fi;", 0);

	/*add board late init function here*/
#ifndef DTB_BIND_KERNEL
	int ret;
	ret = run_command("store dtb read $dtb_mem_addr", 1);
	if (ret) {
		printf("%s(): [store dtb read $dtb_mem_addr] fail\n", __func__);
		#ifdef CONFIG_DTB_MEM_ADDR
		char cmd[64];
		printf("load dtb to %x\n", CONFIG_DTB_MEM_ADDR);
		sprintf(cmd, "store dtb read %x", CONFIG_DTB_MEM_ADDR);
		ret = run_command(cmd, 1);
		if (ret) {
			printf("%s(): %s fail\n", __func__, cmd);
		}
		#endif
	}
#elif defined(CONFIG_DTB_MEM_ADDR)
		{
				char cmd[128];
				int ret;
                if (!getenv("dtb_mem_addr")) {
						sprintf(cmd, "setenv dtb_mem_addr 0x%x", CONFIG_DTB_MEM_ADDR);
						run_command(cmd, 0);
				}
				sprintf(cmd, "imgread dtb boot ${dtb_mem_addr}");
				ret = run_command(cmd, 0);
                                if (ret) {
						printf("%s(): cmd[%s] fail, ret=%d\n", __func__, cmd, ret);
				}
		}
#endif// #ifndef DTB_BIND_KERNEL

#ifdef CONFIG_AML_VPU
	vpu_probe();
#endif
	vpp_init();
#ifndef CONFIG_AML_IRDETECT_EARLY
	/* after  */
	run_command("cvbs init;hdmitx hpd", 0);
	run_command("vout output $outputmode", 0);
#endif

#ifdef CONFIG_AML_V2_FACTORY_BURN
	if (0x1b8ec003 == readl(P_PREG_STICKY_REG2))
		aml_try_factory_usb_burning(1, gd->bd);
	aml_try_factory_sdcard_burning(0, gd->bd);
#endif// #ifdef CONFIG_AML_V2_FACTORY_BURN
	ret = check_vref();
	if (get_cpu_id().family_id == MESON_CPU_MAJOR_ID_GXL) {
		setenv("maxcpus","4");
	}
	return 0;
}
#endif

phys_size_t get_effective_memsize(void)
{
	// >>16 -> MB, <<20 -> real size, so >>16<<20 = <<4
#if defined(CONFIG_SYS_MEM_TOP_HIDE)
	return (((readl(AO_SEC_GP_CFG0)) & 0xFFFF0000) << 4) - CONFIG_SYS_MEM_TOP_HIDE;
#else
	return (((readl(AO_SEC_GP_CFG0)) & 0xFFFF0000) << 4);
#endif
}

#ifdef CONFIG_MULTI_DTB
int checkhw(char * name)
{
	unsigned int ddr_size=0;
	char loc_name[64] = {0};
	int i;
	for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) {
		ddr_size += gd->bd->bi_dram[i].size;
	}
#if defined(CONFIG_SYS_MEM_TOP_HIDE)
	ddr_size += CONFIG_SYS_MEM_TOP_HIDE;
#endif
	switch (ddr_size) {
		case 0x80000000:
			strcpy(loc_name, "gxl_p212_2g\0");
			break;
		case 0x40000000:
			strcpy(loc_name, "gxl_p212_1g\0");
			break;
		case 0x2000000:
			strcpy(loc_name, "gxl_p212_512m\0");
			break;
		default:
			//printf("DDR size: 0x%x, multi-dt doesn't support\n", ddr_size);
			strcpy(loc_name, "gxl_p212_unsupport");
			break;
	}
	strcpy(name, loc_name);
	setenv("aml_dt", loc_name);
	return 0;
}
#endif

const char * const _env_args_reserve_[] =
{
		"aml_dt",
		"firstboot",

		NULL//Keep NULL be last to tell END
};