board/ge/b1x5v2/spl.c - platform/external/u-boot - Gitiles

 /*
  * GE b1x5v2 - QMX6 SPL
  *
  * Copyright 2013, Adeneo Embedded <www.adeneo-embedded.com>
  * Copyright 2018-2020 GE Inc.
  * Copyright 2018-2020 Collabora Ltd.
  *
  * SPDX-License-Identifier:    GPL-2.0+
  */

 #include <asm/arch/clock.h>
 #include <asm/arch/crm_regs.h>
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/iomux.h>
 #include <asm/arch/mx6-pins.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/gpio.h>
 #include <init.h>
 #include <spi.h>
 #include <spi_flash.h>
 #include <spl.h>

 #if defined(CONFIG_SPL_BUILD)

 #include <asm/arch/mx6-ddr.h>

 #define IMX6DQ_DRIVE_STRENGTH_40_OHM		0x30
 #define IMX6DQ_DRIVE_STRENGTH_48_OHM		0x28
 #define IMX6DQ_DRIVE_STRENGTH			IMX6DQ_DRIVE_STRENGTH_40_OHM

 #define QMX6_DDR_PKE_DISABLED			0x00000000
 #define QMX6_DDR_ODT_60_OHM			(2 << 16)
 #define QMX6_DDR_TYPE_DDR3			0x000c0000

 #define QMX6_DRAM_SDCKE_PULLUP_100K		0x00003000
 #define QMX6_DRAM_SDBA2_PULLUP_NONE		0x00000000

 #define SPI_PAD_CTRL (PAD_CTL_HYS |				\
 	PAD_CTL_SPEED_MED |		\
 	PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)

 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |			\
 	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

 #define SPI1_CS0 IMX_GPIO_NR(3, 19)
 #define POWEROFF IMX_GPIO_NR(4, 25)

 static iomux_v3_cfg_t const poweroff_pads[] = {
 	IOMUX_PADS(PAD_DISP0_DAT4__GPIO4_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)),
 };

 static iomux_v3_cfg_t const uart2_pads[] = {
 	IOMUX_PADS(PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
 	IOMUX_PADS(PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
 };

 static iomux_v3_cfg_t const uart3_pads[] = {
 	IOMUX_PADS(PAD_EIM_D24__UART3_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
 	IOMUX_PADS(PAD_EIM_D25__UART3_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
 };

 static iomux_v3_cfg_t const ecspi1_pads[] = {
 	IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)),
 	IOMUX_PADS(PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL)),
 	IOMUX_PADS(PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL)),
 	IOMUX_PADS(PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL)),
 };

 static struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
 	.dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_cas = IMX6DQ_DRIVE_STRENGTH,
 	.dram_ras = IMX6DQ_DRIVE_STRENGTH,
 	.dram_reset = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdcke0 = QMX6_DRAM_SDCKE_PULLUP_100K,
 	.dram_sdcke1 = QMX6_DRAM_SDCKE_PULLUP_100K,
 	.dram_sdba2 = QMX6_DRAM_SDBA2_PULLUP_NONE,
 	.dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm0 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm1 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm2 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm3 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm4 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm5 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm6 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm7 = IMX6DQ_DRIVE_STRENGTH,
 };

 static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = {
 	.dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_cas = IMX6DQ_DRIVE_STRENGTH,
 	.dram_ras = IMX6DQ_DRIVE_STRENGTH,
 	.dram_reset = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdcke0 = QMX6_DRAM_SDCKE_PULLUP_100K,
 	.dram_sdcke1 = QMX6_DRAM_SDCKE_PULLUP_100K,
 	.dram_sdba2 = QMX6_DRAM_SDBA2_PULLUP_NONE,
 	.dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm0 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm1 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm2 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm3 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm4 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm5 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm6 = IMX6DQ_DRIVE_STRENGTH,
 	.dram_dqm7 = IMX6DQ_DRIVE_STRENGTH,
 };

 static struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = {
 	.grp_ddr_type = QMX6_DDR_TYPE_DDR3,
 	.grp_ddrmode_ctl = QMX6_DDR_ODT_60_OHM,
 	.grp_ddrpke = QMX6_DDR_PKE_DISABLED,
 	.grp_addds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_ctlds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_ddrmode = QMX6_DDR_ODT_60_OHM,
 	.grp_b0ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b1ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b2ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b3ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b4ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b5ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b6ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b7ds = IMX6DQ_DRIVE_STRENGTH,
 };

 static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
 	.grp_ddr_type = QMX6_DDR_TYPE_DDR3,
 	.grp_ddrmode_ctl = QMX6_DDR_ODT_60_OHM,
 	.grp_ddrpke = QMX6_DDR_PKE_DISABLED,
 	.grp_addds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_ctlds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_ddrmode = QMX6_DDR_ODT_60_OHM,
 	.grp_b0ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b1ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b2ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b3ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b4ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b5ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b6ds = IMX6DQ_DRIVE_STRENGTH,
 	.grp_b7ds = IMX6DQ_DRIVE_STRENGTH,
 };

 const struct mx6_mmdc_calibration mx6q_mmcd_calib = {
 	.p0_mpwldectrl0 =  0x0016001A,
 	.p0_mpwldectrl1 =  0x0023001C,
 	.p1_mpwldectrl0 =  0x0028003A,
 	.p1_mpwldectrl1 =  0x001F002C,
 	.p0_mpdgctrl0 =  0x43440354,
 	.p0_mpdgctrl1 =  0x033C033C,
 	.p1_mpdgctrl0 =  0x43300368,
 	.p1_mpdgctrl1 =  0x03500330,
 	.p0_mprddlctl =  0x3228242E,
 	.p1_mprddlctl =  0x2C2C2636,
 	.p0_mpwrdlctl =  0x36323A38,
 	.p1_mpwrdlctl =  0x42324440,
 };

 const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = {
 	.p0_mpwldectrl0 =  0x00080016,
 	.p0_mpwldectrl1 =  0x001D0016,
 	.p1_mpwldectrl0 =  0x0018002C,
 	.p1_mpwldectrl1 =  0x000D001D,
 	.p0_mpdgctrl0 =    0x43200334,
 	.p0_mpdgctrl1 =    0x0320031C,
 	.p1_mpdgctrl0 =    0x0344034C,
 	.p1_mpdgctrl1 =    0x03380314,
 	.p0_mprddlctl =    0x3E36383A,
 	.p1_mprddlctl =    0x38363240,
 	.p0_mpwrdlctl =	   0x36364238,
 	.p1_mpwrdlctl =    0x4230423E,
 };

 const struct mx6_mmdc_calibration mx6q_4g_mmcd_calib = {
 	.p0_mpwldectrl0 =  0x00180018,
 	.p0_mpwldectrl1 =  0x00220018,
 	.p1_mpwldectrl0 =  0x00330046,
 	.p1_mpwldectrl1 =  0x002B003D,
 	.p0_mpdgctrl0 =    0x4344034C,
 	.p0_mpdgctrl1 =    0x033C033C,
 	.p1_mpdgctrl0 =    0x03700374,
 	.p1_mpdgctrl1 =    0x03600338,
 	.p0_mprddlctl =    0x443E3E40,
 	.p1_mprddlctl =    0x423E3E48,
 	.p0_mpwrdlctl =	   0x3C3C4442,
 	.p1_mpwrdlctl =    0x46384C46,
 };

 static const struct mx6_mmdc_calibration mx6s_mmcd_calib = {
 	.p0_mpwldectrl0 =  0x00480049,
 	.p0_mpwldectrl1 =  0x00410044,
 	.p0_mpdgctrl0 =    0x42480248,
 	.p0_mpdgctrl1 =    0x023C023C,
 	.p0_mprddlctl =    0x40424644,
 	.p0_mpwrdlctl =    0x34323034,
 };

 static const struct mx6_mmdc_calibration mx6s_2g_mmcd_calib = {
 	.p0_mpwldectrl0 =  0x00450048,
 	.p0_mpwldectrl1 =  0x003B003F,
 	.p0_mpdgctrl0 =    0x424C0248,
 	.p0_mpdgctrl1 =    0x0234023C,
 	.p0_mprddlctl =    0x40444848,
 	.p0_mpwrdlctl =    0x38363232,
 };

 static const struct mx6_mmdc_calibration mx6dl_mmcd_calib = {
 	.p0_mpwldectrl0 =  0x0043004B,
 	.p0_mpwldectrl1 =  0x003A003E,
 	.p1_mpwldectrl0 =  0x0047004F,
 	.p1_mpwldectrl1 =  0x004E0061,
 	.p0_mpdgctrl0 =    0x42500250,
 	.p0_mpdgctrl1 =	   0x0238023C,
 	.p1_mpdgctrl0 =    0x42640264,
 	.p1_mpdgctrl1 =    0x02500258,
 	.p0_mprddlctl =    0x40424846,
 	.p1_mprddlctl =    0x46484842,
 	.p0_mpwrdlctl =    0x38382C30,
 	.p1_mpwrdlctl =    0x34343430,
 };

 static const struct mx6_mmdc_calibration mx6dl_2g_mmcd_calib = {
 	.p0_mpwldectrl0 =  0x00450045,
 	.p0_mpwldectrl1 =  0x00390043,
 	.p1_mpwldectrl0 =  0x0049004D,
 	.p1_mpwldectrl1 =  0x004E0061,
 	.p0_mpdgctrl0 =    0x4240023C,
 	.p0_mpdgctrl1 =	   0x0228022C,
 	.p1_mpdgctrl0 =    0x02400244,
 	.p1_mpdgctrl1 =    0x02340238,
 	.p0_mprddlctl =    0x42464648,
 	.p1_mprddlctl =    0x4446463C,
 	.p0_mpwrdlctl =    0x3C38323A,
 	.p1_mpwrdlctl =    0x34323430,
 };

 static struct mx6_ddr3_cfg mem_ddr_2g = {
 	.mem_speed = 1600,
 	.density = 2,
 	.width = 16,
 	.banks = 8,
 	.rowaddr = 14,
 	.coladdr = 10,
 	.pagesz = 2,
 	.trcd = 1310,
 	.trcmin = 4875,
 	.trasmin = 3500,
 };

 static struct mx6_ddr3_cfg mem_ddr_4g = {
 	.mem_speed = 1600,
 	.density = 4,
 	.width = 16,
 	.banks = 8,
 	.rowaddr = 15,
 	.coladdr = 10,
 	.pagesz = 2,
 	.trcd = 1310,
 	.trcmin = 4875,
 	.trasmin = 3500,
 };

 static struct mx6_ddr3_cfg mem_ddr_8g = {
 	.mem_speed = 1600,
 	.density = 8,
 	.width = 16,
 	.banks = 8,
 	.rowaddr = 16,
 	.coladdr = 10,
 	.pagesz = 2,
 	.trcd = 1310,
 	.trcmin = 4875,
 	.trasmin = 3500,
 };

 static void spl_dram_init(u8 width, u32 memsize) {
 	struct mx6_ddr_sysinfo sysinfo = {
 		 /* width of data bus: 0=16, 1=32, 2=64 */
 		.dsize		= width / 32,
 		/* config for full 4GB range so that get_mem_size() works */
 		.cs_density	= 32,	/* 32Gb per CS */

 		.ncs = 1,
 		.cs1_mirror = 0,
 		.rtt_wr = 2,
 		.rtt_nom = 2,
 		.walat = 0,
 		.ralat = 5,
 		.mif3_mode = 3,
 		.bi_on = 1,
 		.sde_to_rst = 0x0d,
 		.rst_to_cke = 0x20,
 	};

 	if (is_cpu_type(MXC_CPU_MX6SOLO)) {
 		sysinfo.walat = 1;
 		mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);

 		switch(memsize) {
 		case 512:
 			mx6_dram_cfg(&sysinfo, &mx6s_2g_mmcd_calib, &mem_ddr_2g);
 			break;
 		default:
 			mx6_dram_cfg(&sysinfo, &mx6s_mmcd_calib, &mem_ddr_4g);
 			break;
 		}
 	} else if (is_cpu_type(MXC_CPU_MX6DL)) {
 		sysinfo.walat = 1;
 		mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);

 		switch(memsize) {
 		case 2048:
 			mx6_dram_cfg(&sysinfo, &mx6dl_2g_mmcd_calib, &mem_ddr_4g);
 			break;
 		default:
 			mx6_dram_cfg(&sysinfo, &mx6dl_mmcd_calib, &mem_ddr_2g);
 			break;
 		}
 	} else if (is_cpu_type(MXC_CPU_MX6Q)) {
 		mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);

 		switch(memsize) {
 		case 4096:
 			sysinfo.cs_density = 16;
 			sysinfo.ncs = 2;
 			mx6_dram_cfg(&sysinfo, &mx6q_4g_mmcd_calib, &mem_ddr_8g);
 			break;
 		case 2048:
 			mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g);
 			break;
 		default:
 			mx6_dram_cfg(&sysinfo, &mx6q_mmcd_calib, &mem_ddr_2g);
 			break;
 		}
 	}
 }

 /* Define a minimal structure so that the part number can be read via SPL */
 #define CFG_MFG_ADDR_OFFSET	(spi->size - SZ_16K)
 struct mfgdata {
 	unsigned char tsize;
 	/* size of checksummed part in bytes */
 	unsigned char ckcnt;
 	/* checksum corrected byte */
 	unsigned char cksum;
 	/* decimal serial number, packed BCD */
 	unsigned char serial[6];
 	 /* part number, right justified, ASCII */
 	unsigned char pn[16];
 };

 static void conv_ascii(unsigned char *dst, unsigned char *src, int len)
 {
 	int remain = len;
 	unsigned char *sptr = src;
 	unsigned char *dptr = dst;

 	while (remain) {
 		if (*sptr) {
 			*dptr = *sptr;
 			dptr++;
 		}
 		sptr++;
 		remain--;
 	}
 	*dptr = 0x0;
 }

 /*
  * Returns the total size of the memory [in MB] the board is equipped with
  *
  * This is determined via the partnumber which is stored in the
  * congatec manufacturing area
  */
 static int get_boardmem_size(struct spi_flash *spi)
 {
 	int ret;
 	int i;
 	int arraysize;
 	char buf[sizeof(struct mfgdata)];
 	struct mfgdata *data = (struct mfgdata *)buf;
 	unsigned char outbuf[32];
 	char partnumbers_2g[4][7] = { "016104", "016105", "016304", "016305" };
 	char partnumbers_4g[2][7] = { "016308", "016318" };
 	char partnumbers_512m[2][7] = { "016203", "616300" };

 	ret = spi_flash_read(spi, CFG_MFG_ADDR_OFFSET, sizeof(struct mfgdata),
 			     buf);
 	if (ret)
 		return 1024; /* default to 1GByte in case of error */

 	conv_ascii(outbuf, data->pn, sizeof(data->pn));

 	printf("Detected Congatec QMX6 SOM: %s\n", outbuf);

 	/* congatec PN 016104, 016105, 016304, 016305 have 2GiB of RAM */
 	arraysize = sizeof(partnumbers_2g) / sizeof(partnumbers_2g[0]);
 	for (i=0; i < arraysize; i++) {
 		if (!memcmp(outbuf,partnumbers_2g[i],6))
 			return 2048;
 	}

 	/* congatec PN 016308, 016318 have 4GiB of RAM */
 	arraysize = sizeof(partnumbers_4g) / sizeof(partnumbers_4g[0]);
 	for (i=0; i < arraysize; i++) {
 		if (!memcmp(outbuf,partnumbers_4g[i],6))
 			return 4096;
 	}

 	/* congatec PN 016203, 616300 has 512MiB of RAM */
 	arraysize = sizeof(partnumbers_512m) / sizeof(partnumbers_512m[0]);
 	for (i=0; i < arraysize; i++) {
 		if (!memcmp(outbuf,partnumbers_512m[i],6))
 			return 512;
 	}

 	/* default to 1GByte */
 	return 1024;
 }

 void reset_cpu(void)
 {
 }

 int board_spi_cs_gpio(unsigned bus, unsigned cs)
 {
 	if (bus == 0 && cs == 0)
 		return (SPI1_CS0);
 	else
 		return -1;
 }

 static void memory_init(void) {
 	struct spi_flash *spi;
 	u8 width;
 	u32 size;

 	SETUP_IOMUX_PADS(ecspi1_pads);
 	gpio_direction_output(SPI1_CS0, 0);

 	spi = spi_flash_probe(CONFIG_ENV_SPI_BUS,
 			      CONFIG_ENV_SPI_CS,
 			      CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
 	if (!spi)
 		panic("Cannot identify board type: SPI-NOR flash module not detected\n");

 	/* lock manufacturer area */
 	spi_flash_protect(spi, CFG_MFG_ADDR_OFFSET, SZ_16K, true);

 	width = is_cpu_type(MXC_CPU_MX6SOLO) ? 32 : 64;
 	size = get_boardmem_size(spi);
 	printf("Detected Memory Size: %u\n", size);

 	spl_dram_init(width, size);
 }

 static void ccgr_init(void)
 {
 	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;

 	static const uint32_t ccgr0 =
 		MXC_CCM_CCGR0_AIPS_TZ1_MASK |
 		MXC_CCM_CCGR0_AIPS_TZ2_MASK |
 		MXC_CCM_CCGR0_APBHDMA_MASK |
 		MXC_CCM_CCGR0_CAAM_SECURE_MEM_MASK |
 		MXC_CCM_CCGR0_CAAM_WRAPPER_ACLK_MASK |
 		MXC_CCM_CCGR0_CAAM_WRAPPER_IPG_MASK |
 		MXC_CCM_CCGR0_CHEETAH_DBG_CLK_MASK;

 	static const uint32_t ccgr1 =
 		MXC_CCM_CCGR1_ECSPI1S_MASK |
 		MXC_CCM_CCGR1_ENET_MASK |
 		MXC_CCM_CCGR1_EPIT1S_MASK |
 		MXC_CCM_CCGR1_EPIT2S_MASK |
 		MXC_CCM_CCGR1_GPT_BUS_MASK;

 	static const uint32_t ccgr2 =
 		MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK |
 		MXC_CCM_CCGR2_IPMUX1_MASK |
 		MXC_CCM_CCGR2_IPMUX2_MASK |
 		MXC_CCM_CCGR2_IPMUX3_MASK |
 		MXC_CCM_CCGR2_IPSYNC_IP2APB_TZASC1_IPGS_MASK |
 		MXC_CCM_CCGR2_IPSYNC_IP2APB_TZASC2_IPG_MASK |
 		MXC_CCM_CCGR2_IPSYNC_VDOA_IPG_MASTER_CLK_MASK;

 	static const uint32_t ccgr3 =
 		MXC_CCM_CCGR3_MMDC_CORE_ACLK_FAST_CORE_P0_MASK |
 		MXC_CCM_CCGR3_MMDC_CORE_ACLK_FAST_CORE_P1_MASK |
 		MXC_CCM_CCGR3_MMDC_CORE_IPG_CLK_P0_MASK |
 		MXC_CCM_CCGR3_MMDC_CORE_IPG_CLK_P1_MASK |
 		MXC_CCM_CCGR3_OCRAM_MASK;

 	static const uint32_t ccgr4 =
 		MXC_CCM_CCGR4_PL301_MX6QFAST1_S133_MASK |
 		MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK |
 		MXC_CCM_CCGR4_PL301_MX6QPER2_MAINCLK_ENABLE_MASK |
 		MXC_CCM_CCGR4_PWM1_MASK |
 		MXC_CCM_CCGR4_PWM2_MASK |
 		MXC_CCM_CCGR4_PWM3_MASK |
 		MXC_CCM_CCGR4_PWM4_MASK;

 	static const uint32_t ccgr5 =
 		MXC_CCM_CCGR5_ROM_MASK |
 		MXC_CCM_CCGR5_SDMA_MASK |
 		MXC_CCM_CCGR5_UART_MASK |
 		MXC_CCM_CCGR5_UART_SERIAL_MASK;

 	static const uint32_t ccgr6 =
 		MXC_CCM_CCGR6_USBOH3_MASK |
 		MXC_CCM_CCGR6_USDHC1_MASK |
 		MXC_CCM_CCGR6_USDHC2_MASK |
 		MXC_CCM_CCGR6_SIM1_CLK_MASK |
 		MXC_CCM_CCGR6_SIM2_CLK_MASK;

 	writel(ccgr0, &ccm->CCGR0);
 	writel(ccgr1, &ccm->CCGR1);
 	writel(ccgr2, &ccm->CCGR2);
 	writel(ccgr3, &ccm->CCGR3);
 	writel(ccgr4, &ccm->CCGR4);
 	writel(ccgr5, &ccm->CCGR5);
 	writel(ccgr6, &ccm->CCGR6);
 }

 void board_init_f(ulong dummy)
 {
 	/* setup clock gating */
 	ccgr_init();

 	/* setup AIPS and disable watchdog */
 	arch_cpu_init();

 	/* setup AXI */
 	gpr_init();

 	/*
 	 * setup poweroff GPIO. This controls system power regulator. Once
 	 * the power button is released this must be enabled to keep system
 	 * running. Not enabling it (or disabling it later) will turn off
 	 * the main system regulator and instantly poweroff the system. We
 	 * do this very early, to reduce the time users have to press the
 	 * power button.
 	 */
 	SETUP_IOMUX_PADS(poweroff_pads);
 	gpio_direction_output(POWEROFF, 1);

 	/* setup GP timer */
 	timer_init();

 	/* iomux */
 	if (CONFIG_MXC_UART_BASE == UART2_BASE)
 		SETUP_IOMUX_PADS(uart2_pads);
 	else if (CONFIG_MXC_UART_BASE == UART3_BASE)
 		SETUP_IOMUX_PADS(uart3_pads);

 	/* UART clocks enabled and gd valid - init serial console */
 	preloader_console_init();

 	/* Needed for malloc() [used by SPI] to work in SPL prior to board_init_r() */
 	spl_init();

 	/* DDR initialization */
 	memory_init();
 }

 void spl_board_prepare_for_boot(void)
 {
 	printf("Load normal U-Boot...\n");
 }
 #endif
	/*
	* GE b1x5v2 - QMX6 SPL
	*
	* Copyright 2013, Adeneo Embedded <www.adeneo-embedded.com>
	* Copyright 2018-2020 GE Inc.
	* Copyright 2018-2020 Collabora Ltd.
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include <asm/arch/clock.h>
	#include <asm/arch/crm_regs.h>
	#include <asm/arch/imx-regs.h>
	#include <asm/arch/iomux.h>
	#include <asm/arch/mx6-pins.h>
	#include <asm/arch/sys_proto.h>
	#include <asm/gpio.h>
	#include <init.h>
	#include <spi.h>
	#include <spi_flash.h>
	#include <spl.h>

	#if defined(CONFIG_SPL_BUILD)

	#include <asm/arch/mx6-ddr.h>

	#define IMX6DQ_DRIVE_STRENGTH_40_OHM 0x30
	#define IMX6DQ_DRIVE_STRENGTH_48_OHM 0x28
	#define IMX6DQ_DRIVE_STRENGTH IMX6DQ_DRIVE_STRENGTH_40_OHM

	#define QMX6_DDR_PKE_DISABLED 0x00000000
	#define QMX6_DDR_ODT_60_OHM (2 << 16)
	#define QMX6_DDR_TYPE_DDR3 0x000c0000

	#define QMX6_DRAM_SDCKE_PULLUP_100K 0x00003000
	#define QMX6_DRAM_SDBA2_PULLUP_NONE 0x00000000

	#define SPI_PAD_CTRL (PAD_CTL_HYS \| \
	PAD_CTL_SPEED_MED \| \
	PAD_CTL_DSE_40ohm \| PAD_CTL_SRE_FAST)

	#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP \| \
	PAD_CTL_SPEED_MED \| PAD_CTL_DSE_40ohm \| \
	PAD_CTL_SRE_FAST \| PAD_CTL_HYS)

	#define SPI1_CS0 IMX_GPIO_NR(3, 19)
	#define POWEROFF IMX_GPIO_NR(4, 25)

	static iomux_v3_cfg_t const poweroff_pads[] = {
	IOMUX_PADS(PAD_DISP0_DAT4__GPIO4_IO25 \| MUX_PAD_CTRL(NO_PAD_CTRL)),
	};

	static iomux_v3_cfg_t const uart2_pads[] = {
	IOMUX_PADS(PAD_EIM_D26__UART2_TX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	IOMUX_PADS(PAD_EIM_D27__UART2_RX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	};

	static iomux_v3_cfg_t const uart3_pads[] = {
	IOMUX_PADS(PAD_EIM_D24__UART3_TX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	IOMUX_PADS(PAD_EIM_D25__UART3_RX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	};

	static iomux_v3_cfg_t const ecspi1_pads[] = {
	IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK \| MUX_PAD_CTRL(SPI_PAD_CTRL)),
	IOMUX_PADS(PAD_EIM_D17__ECSPI1_MISO \| MUX_PAD_CTRL(SPI_PAD_CTRL)),
	IOMUX_PADS(PAD_EIM_D18__ECSPI1_MOSI \| MUX_PAD_CTRL(SPI_PAD_CTRL)),
	IOMUX_PADS(PAD_EIM_D19__GPIO3_IO19 \| MUX_PAD_CTRL(NO_PAD_CTRL)),
	};

	static struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
	.dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH,
	.dram_cas = IMX6DQ_DRIVE_STRENGTH,
	.dram_ras = IMX6DQ_DRIVE_STRENGTH,
	.dram_reset = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdcke0 = QMX6_DRAM_SDCKE_PULLUP_100K,
	.dram_sdcke1 = QMX6_DRAM_SDCKE_PULLUP_100K,
	.dram_sdba2 = QMX6_DRAM_SDBA2_PULLUP_NONE,
	.dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm0 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm1 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm2 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm3 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm4 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm5 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm6 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm7 = IMX6DQ_DRIVE_STRENGTH,
	};

	static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = {
	.dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH,
	.dram_cas = IMX6DQ_DRIVE_STRENGTH,
	.dram_ras = IMX6DQ_DRIVE_STRENGTH,
	.dram_reset = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdcke0 = QMX6_DRAM_SDCKE_PULLUP_100K,
	.dram_sdcke1 = QMX6_DRAM_SDCKE_PULLUP_100K,
	.dram_sdba2 = QMX6_DRAM_SDBA2_PULLUP_NONE,
	.dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH,
	.dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm0 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm1 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm2 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm3 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm4 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm5 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm6 = IMX6DQ_DRIVE_STRENGTH,
	.dram_dqm7 = IMX6DQ_DRIVE_STRENGTH,
	};

	static struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = {
	.grp_ddr_type = QMX6_DDR_TYPE_DDR3,
	.grp_ddrmode_ctl = QMX6_DDR_ODT_60_OHM,
	.grp_ddrpke = QMX6_DDR_PKE_DISABLED,
	.grp_addds = IMX6DQ_DRIVE_STRENGTH,
	.grp_ctlds = IMX6DQ_DRIVE_STRENGTH,
	.grp_ddrmode = QMX6_DDR_ODT_60_OHM,
	.grp_b0ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b1ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b2ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b3ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b4ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b5ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b6ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b7ds = IMX6DQ_DRIVE_STRENGTH,
	};

	static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
	.grp_ddr_type = QMX6_DDR_TYPE_DDR3,
	.grp_ddrmode_ctl = QMX6_DDR_ODT_60_OHM,
	.grp_ddrpke = QMX6_DDR_PKE_DISABLED,
	.grp_addds = IMX6DQ_DRIVE_STRENGTH,
	.grp_ctlds = IMX6DQ_DRIVE_STRENGTH,
	.grp_ddrmode = QMX6_DDR_ODT_60_OHM,
	.grp_b0ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b1ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b2ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b3ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b4ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b5ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b6ds = IMX6DQ_DRIVE_STRENGTH,
	.grp_b7ds = IMX6DQ_DRIVE_STRENGTH,
	};

	const struct mx6_mmdc_calibration mx6q_mmcd_calib = {
	.p0_mpwldectrl0 = 0x0016001A,
	.p0_mpwldectrl1 = 0x0023001C,
	.p1_mpwldectrl0 = 0x0028003A,
	.p1_mpwldectrl1 = 0x001F002C,
	.p0_mpdgctrl0 = 0x43440354,
	.p0_mpdgctrl1 = 0x033C033C,
	.p1_mpdgctrl0 = 0x43300368,
	.p1_mpdgctrl1 = 0x03500330,
	.p0_mprddlctl = 0x3228242E,
	.p1_mprddlctl = 0x2C2C2636,
	.p0_mpwrdlctl = 0x36323A38,
	.p1_mpwrdlctl = 0x42324440,
	};

	const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = {
	.p0_mpwldectrl0 = 0x00080016,
	.p0_mpwldectrl1 = 0x001D0016,
	.p1_mpwldectrl0 = 0x0018002C,
	.p1_mpwldectrl1 = 0x000D001D,
	.p0_mpdgctrl0 = 0x43200334,
	.p0_mpdgctrl1 = 0x0320031C,
	.p1_mpdgctrl0 = 0x0344034C,
	.p1_mpdgctrl1 = 0x03380314,
	.p0_mprddlctl = 0x3E36383A,
	.p1_mprddlctl = 0x38363240,
	.p0_mpwrdlctl = 0x36364238,
	.p1_mpwrdlctl = 0x4230423E,
	};

	const struct mx6_mmdc_calibration mx6q_4g_mmcd_calib = {
	.p0_mpwldectrl0 = 0x00180018,
	.p0_mpwldectrl1 = 0x00220018,
	.p1_mpwldectrl0 = 0x00330046,
	.p1_mpwldectrl1 = 0x002B003D,
	.p0_mpdgctrl0 = 0x4344034C,
	.p0_mpdgctrl1 = 0x033C033C,
	.p1_mpdgctrl0 = 0x03700374,
	.p1_mpdgctrl1 = 0x03600338,
	.p0_mprddlctl = 0x443E3E40,
	.p1_mprddlctl = 0x423E3E48,
	.p0_mpwrdlctl = 0x3C3C4442,
	.p1_mpwrdlctl = 0x46384C46,
	};

	static const struct mx6_mmdc_calibration mx6s_mmcd_calib = {
	.p0_mpwldectrl0 = 0x00480049,
	.p0_mpwldectrl1 = 0x00410044,
	.p0_mpdgctrl0 = 0x42480248,
	.p0_mpdgctrl1 = 0x023C023C,
	.p0_mprddlctl = 0x40424644,
	.p0_mpwrdlctl = 0x34323034,
	};

	static const struct mx6_mmdc_calibration mx6s_2g_mmcd_calib = {
	.p0_mpwldectrl0 = 0x00450048,
	.p0_mpwldectrl1 = 0x003B003F,
	.p0_mpdgctrl0 = 0x424C0248,
	.p0_mpdgctrl1 = 0x0234023C,
	.p0_mprddlctl = 0x40444848,
	.p0_mpwrdlctl = 0x38363232,
	};

	static const struct mx6_mmdc_calibration mx6dl_mmcd_calib = {
	.p0_mpwldectrl0 = 0x0043004B,
	.p0_mpwldectrl1 = 0x003A003E,
	.p1_mpwldectrl0 = 0x0047004F,
	.p1_mpwldectrl1 = 0x004E0061,
	.p0_mpdgctrl0 = 0x42500250,
	.p0_mpdgctrl1 = 0x0238023C,
	.p1_mpdgctrl0 = 0x42640264,
	.p1_mpdgctrl1 = 0x02500258,
	.p0_mprddlctl = 0x40424846,
	.p1_mprddlctl = 0x46484842,
	.p0_mpwrdlctl = 0x38382C30,
	.p1_mpwrdlctl = 0x34343430,
	};

	static const struct mx6_mmdc_calibration mx6dl_2g_mmcd_calib = {
	.p0_mpwldectrl0 = 0x00450045,
	.p0_mpwldectrl1 = 0x00390043,
	.p1_mpwldectrl0 = 0x0049004D,
	.p1_mpwldectrl1 = 0x004E0061,
	.p0_mpdgctrl0 = 0x4240023C,
	.p0_mpdgctrl1 = 0x0228022C,
	.p1_mpdgctrl0 = 0x02400244,
	.p1_mpdgctrl1 = 0x02340238,
	.p0_mprddlctl = 0x42464648,
	.p1_mprddlctl = 0x4446463C,
	.p0_mpwrdlctl = 0x3C38323A,
	.p1_mpwrdlctl = 0x34323430,
	};

	static struct mx6_ddr3_cfg mem_ddr_2g = {
	.mem_speed = 1600,
	.density = 2,
	.width = 16,
	.banks = 8,
	.rowaddr = 14,
	.coladdr = 10,
	.pagesz = 2,
	.trcd = 1310,
	.trcmin = 4875,
	.trasmin = 3500,
	};

	static struct mx6_ddr3_cfg mem_ddr_4g = {
	.mem_speed = 1600,
	.density = 4,
	.width = 16,
	.banks = 8,
	.rowaddr = 15,
	.coladdr = 10,
	.pagesz = 2,
	.trcd = 1310,
	.trcmin = 4875,
	.trasmin = 3500,
	};

	static struct mx6_ddr3_cfg mem_ddr_8g = {
	.mem_speed = 1600,
	.density = 8,
	.width = 16,
	.banks = 8,
	.rowaddr = 16,
	.coladdr = 10,
	.pagesz = 2,
	.trcd = 1310,
	.trcmin = 4875,
	.trasmin = 3500,
	};

	static void spl_dram_init(u8 width, u32 memsize) {
	struct mx6_ddr_sysinfo sysinfo = {
	/* width of data bus: 0=16, 1=32, 2=64 */
	.dsize = width / 32,
	/* config for full 4GB range so that get_mem_size() works */
	.cs_density = 32, /* 32Gb per CS */

	.ncs = 1,
	.cs1_mirror = 0,
	.rtt_wr = 2,
	.rtt_nom = 2,
	.walat = 0,
	.ralat = 5,
	.mif3_mode = 3,
	.bi_on = 1,
	.sde_to_rst = 0x0d,
	.rst_to_cke = 0x20,
	};

	if (is_cpu_type(MXC_CPU_MX6SOLO)) {
	sysinfo.walat = 1;
	mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);

	switch(memsize) {
	case 512:
	mx6_dram_cfg(&sysinfo, &mx6s_2g_mmcd_calib, &mem_ddr_2g);
	break;
	default:
	mx6_dram_cfg(&sysinfo, &mx6s_mmcd_calib, &mem_ddr_4g);
	break;
	}
	} else if (is_cpu_type(MXC_CPU_MX6DL)) {
	sysinfo.walat = 1;
	mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);

	switch(memsize) {
	case 2048:
	mx6_dram_cfg(&sysinfo, &mx6dl_2g_mmcd_calib, &mem_ddr_4g);
	break;
	default:
	mx6_dram_cfg(&sysinfo, &mx6dl_mmcd_calib, &mem_ddr_2g);
	break;
	}
	} else if (is_cpu_type(MXC_CPU_MX6Q)) {
	mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);

	switch(memsize) {
	case 4096:
	sysinfo.cs_density = 16;
	sysinfo.ncs = 2;
	mx6_dram_cfg(&sysinfo, &mx6q_4g_mmcd_calib, &mem_ddr_8g);
	break;
	case 2048:
	mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g);
	break;
	default:
	mx6_dram_cfg(&sysinfo, &mx6q_mmcd_calib, &mem_ddr_2g);
	break;
	}
	}
	}

	/* Define a minimal structure so that the part number can be read via SPL */
	#define CFG_MFG_ADDR_OFFSET (spi->size - SZ_16K)
	struct mfgdata {
	unsigned char tsize;
	/* size of checksummed part in bytes */
	unsigned char ckcnt;
	/* checksum corrected byte */
	unsigned char cksum;
	/* decimal serial number, packed BCD */
	unsigned char serial[6];
	/* part number, right justified, ASCII */
	unsigned char pn[16];
	};

	static void conv_ascii(unsigned char dst, unsigned char src, int len)
	{
	int remain = len;
	unsigned char *sptr = src;
	unsigned char *dptr = dst;

	while (remain) {
	if (*sptr) {
	dptr = sptr;
	dptr++;
	}
	sptr++;
	remain--;
	}
	*dptr = 0x0;
	}

	/*
	* Returns the total size of the memory [in MB] the board is equipped with
	*
	* This is determined via the partnumber which is stored in the
	* congatec manufacturing area
	*/
	static int get_boardmem_size(struct spi_flash *spi)
	{
	int ret;
	int i;
	int arraysize;
	char buf[sizeof(struct mfgdata)];
	struct mfgdata data = (struct mfgdata )buf;
	unsigned char outbuf[32];
	char partnumbers_2g[4][7] = { "016104", "016105", "016304", "016305" };
	char partnumbers_4g[2][7] = { "016308", "016318" };
	char partnumbers_512m[2][7] = { "016203", "616300" };

	ret = spi_flash_read(spi, CFG_MFG_ADDR_OFFSET, sizeof(struct mfgdata),
	buf);
	if (ret)
	return 1024; /* default to 1GByte in case of error */

	conv_ascii(outbuf, data->pn, sizeof(data->pn));

	printf("Detected Congatec QMX6 SOM: %s\n", outbuf);

	/* congatec PN 016104, 016105, 016304, 016305 have 2GiB of RAM */
	arraysize = sizeof(partnumbers_2g) / sizeof(partnumbers_2g[0]);
	for (i=0; i < arraysize; i++) {
	if (!memcmp(outbuf,partnumbers_2g[i],6))
	return 2048;
	}

	/* congatec PN 016308, 016318 have 4GiB of RAM */
	arraysize = sizeof(partnumbers_4g) / sizeof(partnumbers_4g[0]);
	for (i=0; i < arraysize; i++) {
	if (!memcmp(outbuf,partnumbers_4g[i],6))
	return 4096;
	}

	/* congatec PN 016203, 616300 has 512MiB of RAM */
	arraysize = sizeof(partnumbers_512m) / sizeof(partnumbers_512m[0]);
	for (i=0; i < arraysize; i++) {
	if (!memcmp(outbuf,partnumbers_512m[i],6))
	return 512;
	}

	/* default to 1GByte */
	return 1024;
	}

	void reset_cpu(void)
	{
	}

	int board_spi_cs_gpio(unsigned bus, unsigned cs)
	{
	if (bus == 0 && cs == 0)
	return (SPI1_CS0);
	else
	return -1;
	}

	static void memory_init(void) {
	struct spi_flash *spi;
	u8 width;
	u32 size;

	SETUP_IOMUX_PADS(ecspi1_pads);
	gpio_direction_output(SPI1_CS0, 0);

	spi = spi_flash_probe(CONFIG_ENV_SPI_BUS,
	CONFIG_ENV_SPI_CS,
	CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
	if (!spi)
	panic("Cannot identify board type: SPI-NOR flash module not detected\n");

	/* lock manufacturer area */
	spi_flash_protect(spi, CFG_MFG_ADDR_OFFSET, SZ_16K, true);

	width = is_cpu_type(MXC_CPU_MX6SOLO) ? 32 : 64;
	size = get_boardmem_size(spi);
	printf("Detected Memory Size: %u\n", size);

	spl_dram_init(width, size);
	}

	static void ccgr_init(void)
	{
	struct mxc_ccm_reg ccm = (struct mxc_ccm_reg )CCM_BASE_ADDR;

	static const uint32_t ccgr0 =
	MXC_CCM_CCGR0_AIPS_TZ1_MASK \|
	MXC_CCM_CCGR0_AIPS_TZ2_MASK \|
	MXC_CCM_CCGR0_APBHDMA_MASK \|
	MXC_CCM_CCGR0_CAAM_SECURE_MEM_MASK \|
	MXC_CCM_CCGR0_CAAM_WRAPPER_ACLK_MASK \|
	MXC_CCM_CCGR0_CAAM_WRAPPER_IPG_MASK \|
	MXC_CCM_CCGR0_CHEETAH_DBG_CLK_MASK;

	static const uint32_t ccgr1 =
	MXC_CCM_CCGR1_ECSPI1S_MASK \|
	MXC_CCM_CCGR1_ENET_MASK \|
	MXC_CCM_CCGR1_EPIT1S_MASK \|
	MXC_CCM_CCGR1_EPIT2S_MASK \|
	MXC_CCM_CCGR1_GPT_BUS_MASK;

	static const uint32_t ccgr2 =
	MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK \|
	MXC_CCM_CCGR2_IPMUX1_MASK \|
	MXC_CCM_CCGR2_IPMUX2_MASK \|
	MXC_CCM_CCGR2_IPMUX3_MASK \|
	MXC_CCM_CCGR2_IPSYNC_IP2APB_TZASC1_IPGS_MASK \|
	MXC_CCM_CCGR2_IPSYNC_IP2APB_TZASC2_IPG_MASK \|
	MXC_CCM_CCGR2_IPSYNC_VDOA_IPG_MASTER_CLK_MASK;

	static const uint32_t ccgr3 =
	MXC_CCM_CCGR3_MMDC_CORE_ACLK_FAST_CORE_P0_MASK \|
	MXC_CCM_CCGR3_MMDC_CORE_ACLK_FAST_CORE_P1_MASK \|
	MXC_CCM_CCGR3_MMDC_CORE_IPG_CLK_P0_MASK \|
	MXC_CCM_CCGR3_MMDC_CORE_IPG_CLK_P1_MASK \|
	MXC_CCM_CCGR3_OCRAM_MASK;

	static const uint32_t ccgr4 =
	MXC_CCM_CCGR4_PL301_MX6QFAST1_S133_MASK \|
	MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK \|
	MXC_CCM_CCGR4_PL301_MX6QPER2_MAINCLK_ENABLE_MASK \|
	MXC_CCM_CCGR4_PWM1_MASK \|
	MXC_CCM_CCGR4_PWM2_MASK \|
	MXC_CCM_CCGR4_PWM3_MASK \|
	MXC_CCM_CCGR4_PWM4_MASK;

	static const uint32_t ccgr5 =
	MXC_CCM_CCGR5_ROM_MASK \|
	MXC_CCM_CCGR5_SDMA_MASK \|
	MXC_CCM_CCGR5_UART_MASK \|
	MXC_CCM_CCGR5_UART_SERIAL_MASK;

	static const uint32_t ccgr6 =
	MXC_CCM_CCGR6_USBOH3_MASK \|
	MXC_CCM_CCGR6_USDHC1_MASK \|
	MXC_CCM_CCGR6_USDHC2_MASK \|
	MXC_CCM_CCGR6_SIM1_CLK_MASK \|
	MXC_CCM_CCGR6_SIM2_CLK_MASK;

	writel(ccgr0, &ccm->CCGR0);
	writel(ccgr1, &ccm->CCGR1);
	writel(ccgr2, &ccm->CCGR2);
	writel(ccgr3, &ccm->CCGR3);
	writel(ccgr4, &ccm->CCGR4);
	writel(ccgr5, &ccm->CCGR5);
	writel(ccgr6, &ccm->CCGR6);
	}

	void board_init_f(ulong dummy)
	{
	/* setup clock gating */
	ccgr_init();

	/* setup AIPS and disable watchdog */
	arch_cpu_init();

	/* setup AXI */
	gpr_init();

	/*
	* setup poweroff GPIO. This controls system power regulator. Once
	* the power button is released this must be enabled to keep system
	* running. Not enabling it (or disabling it later) will turn off
	* the main system regulator and instantly poweroff the system. We
	* do this very early, to reduce the time users have to press the
	* power button.
	*/
	SETUP_IOMUX_PADS(poweroff_pads);
	gpio_direction_output(POWEROFF, 1);

	/* setup GP timer */
	timer_init();

	/* iomux */
	if (CONFIG_MXC_UART_BASE == UART2_BASE)
	SETUP_IOMUX_PADS(uart2_pads);
	else if (CONFIG_MXC_UART_BASE == UART3_BASE)
	SETUP_IOMUX_PADS(uart3_pads);

	/* UART clocks enabled and gd valid - init serial console */
	preloader_console_init();

	/* Needed for malloc() [used by SPI] to work in SPL prior to board_init_r() */
	spl_init();

	/* DDR initialization */
	memory_init();
	}

	void spl_board_prepare_for_boot(void)
	{
	printf("Load normal U-Boot...\n");
	}
	#endif