board/freescale/ls1021aqds/ls1021aqds.c

/*
 * Copyright 2014 Freescale Semiconductor, Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <i2c.h>
#include <asm/io.h>
#include <asm/arch/immap_ls102xa.h>
#include <asm/arch/clock.h>
#include <asm/arch/fsl_serdes.h>
#include <asm/pcie_layerscape.h>
#include <hwconfig.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <fsl_ifc.h>
#include <fsl_sec.h>
#include <spl.h>

#include "../common/qixis.h"
#include "ls1021aqds_qixis.h"
#ifdef CONFIG_U_QE
#include "../../../drivers/qe/qe.h"
#endif

#define PIN_MUX_SEL_CAN		0x03
#define PIN_MUX_SEL_IIC2	0xa0
#define PIN_MUX_SEL_RGMII	0x00
#define PIN_MUX_SEL_SAI		0x0c
#define PIN_MUX_SEL_SDHC	0x00

#define SET_SDHC_MUX_SEL(reg, value)	((reg & 0x0f) | value)
#define SET_EC_MUX_SEL(reg, value)	((reg & 0xf0) | value)
DECLARE_GLOBAL_DATA_PTR;

enum {
	MUX_TYPE_CAN,
	MUX_TYPE_IIC2,
	MUX_TYPE_RGMII,
	MUX_TYPE_SAI,
	MUX_TYPE_SDHC,
	MUX_TYPE_SD_PCI4,
	MUX_TYPE_SD_PC_SA_SG_SG,
	MUX_TYPE_SD_PC_SA_PC_SG,
	MUX_TYPE_SD_PC_SG_SG,
};

int checkboard(void)
{
#ifndef CONFIG_QSPI_BOOT
	char buf[64];
#endif
#if !defined(CONFIG_SD_BOOT) && !defined(CONFIG_QSPI_BOOT)
	u8 sw;
#endif

	puts("Board: LS1021AQDS\n");

#ifdef CONFIG_SD_BOOT
	puts("SD\n");
#elif CONFIG_QSPI_BOOT
	puts("QSPI\n");
#else
	sw = QIXIS_READ(brdcfg[0]);
	sw = (sw & QIXIS_LBMAP_MASK) >> QIXIS_LBMAP_SHIFT;

	if (sw < 0x8)
		printf("vBank: %d\n", sw);
	else if (sw == 0x8)
		puts("PromJet\n");
	else if (sw == 0x9)
		puts("NAND\n");
	else if (sw == 0x15)
		printf("IFCCard\n");
	else
		printf("invalid setting of SW%u\n", QIXIS_LBMAP_SWITCH);
#endif

#ifndef CONFIG_QSPI_BOOT
	printf("Sys ID:0x%02x, Sys Ver: 0x%02x\n",
	       QIXIS_READ(id), QIXIS_READ(arch));

	printf("FPGA:  v%d (%s), build %d\n",
	       (int)QIXIS_READ(scver), qixis_read_tag(buf),
	       (int)qixis_read_minor());
#endif

	return 0;
}

unsigned long get_board_sys_clk(void)
{
	u8 sysclk_conf = QIXIS_READ(brdcfg[1]);

	switch (sysclk_conf & 0x0f) {
	case QIXIS_SYSCLK_64:
		return 64000000;
	case QIXIS_SYSCLK_83:
		return 83333333;
	case QIXIS_SYSCLK_100:
		return 100000000;
	case QIXIS_SYSCLK_125:
		return 125000000;
	case QIXIS_SYSCLK_133:
		return 133333333;
	case QIXIS_SYSCLK_150:
		return 150000000;
	case QIXIS_SYSCLK_160:
		return 160000000;
	case QIXIS_SYSCLK_166:
		return 166666666;
	}
	return 66666666;
}

unsigned long get_board_ddr_clk(void)
{
	u8 ddrclk_conf = QIXIS_READ(brdcfg[1]);

	switch ((ddrclk_conf & 0x30) >> 4) {
	case QIXIS_DDRCLK_100:
		return 100000000;
	case QIXIS_DDRCLK_125:
		return 125000000;
	case QIXIS_DDRCLK_133:
		return 133333333;
	}
	return 66666666;
}

int select_i2c_ch_pca9547(u8 ch)
{
	int ret;

	ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1);
	if (ret) {
		puts("PCA: failed to select proper channel\n");
		return ret;
	}

	return 0;
}

int dram_init(void)
{
	/*
	 * When resuming from deep sleep, the I2C channel may not be
	 * in the default channel. So, switch to the default channel
	 * before accessing DDR SPD.
	 */
	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
	gd->ram_size = initdram(0);

	return 0;
}

#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg esdhc_cfg[1] = {
	{CONFIG_SYS_FSL_ESDHC_ADDR},
};

int board_mmc_init(bd_t *bis)
{
	esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);

	return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
}
#endif

int board_early_init_f(void)
{
	struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
	struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;

#ifdef CONFIG_TSEC_ENET
	out_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR);
	out_be32(&scfg->etsecmcr, SCFG_ETSECCMCR_GE2_CLK125);
#endif

#ifdef CONFIG_FSL_IFC
	init_early_memctl_regs();
#endif

#ifdef CONFIG_FSL_QSPI
	out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL);
#endif

	/* Workaround for the issue that DDR could not respond to
	 * barrier transaction which is generated by executing DSB/ISB
	 * instruction. Set CCI-400 control override register to
	 * terminate the barrier transaction. After DDR is initialized,
	 * allow barrier transaction to DDR again */
	out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);

	return 0;
}

#ifdef CONFIG_SPL_BUILD
void board_init_f(ulong dummy)
{
	struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;

#ifdef CONFIG_NAND_BOOT
	struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
	u32 porsr1, pinctl;

	/*
	 * There is LS1 SoC issue where NOR, FPGA are inaccessible during
	 * NAND boot because IFC signals > IFC_AD7 are not enabled.
	 * This workaround changes RCW source to make all signals enabled.
	 */
	porsr1 = in_be32(&gur->porsr1);
	pinctl = ((porsr1 & ~(DCFG_CCSR_PORSR1_RCW_MASK)) |
		 DCFG_CCSR_PORSR1_RCW_SRC_I2C);
	out_be32((unsigned int *)(CONFIG_SYS_DCSR_DCFG_ADDR + DCFG_DCSR_PORCR1),
		 pinctl);
#endif

	/* Set global data pointer */
	gd = &gdata;

	/* Clear the BSS */
	memset(__bss_start, 0, __bss_end - __bss_start);

#ifdef CONFIG_FSL_IFC
	init_early_memctl_regs();
#endif

	get_clocks();

	preloader_console_init();

#ifdef CONFIG_SPL_I2C_SUPPORT
	i2c_init_all();
#endif
	out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);

	dram_init();

	board_init_r(NULL, 0);
}
#endif

int config_board_mux(int ctrl_type)
{
	u8 reg12, reg14;

	reg12 = QIXIS_READ(brdcfg[12]);
	reg14 = QIXIS_READ(brdcfg[14]);

	switch (ctrl_type) {
	case MUX_TYPE_CAN:
		reg14 = SET_EC_MUX_SEL(reg14, PIN_MUX_SEL_CAN);
		break;
	case MUX_TYPE_IIC2:
		reg14 = SET_SDHC_MUX_SEL(reg14, PIN_MUX_SEL_IIC2);
		break;
	case MUX_TYPE_RGMII:
		reg14 = SET_EC_MUX_SEL(reg14, PIN_MUX_SEL_RGMII);
		break;
	case MUX_TYPE_SAI:
		reg14 = SET_EC_MUX_SEL(reg14, PIN_MUX_SEL_SAI);
		break;
	case MUX_TYPE_SDHC:
		reg14 = SET_SDHC_MUX_SEL(reg14, PIN_MUX_SEL_SDHC);
		break;
	case MUX_TYPE_SD_PCI4:
		reg12 = 0x38;
		break;
	case MUX_TYPE_SD_PC_SA_SG_SG:
		reg12 = 0x01;
		break;
	case MUX_TYPE_SD_PC_SA_PC_SG:
		reg12 = 0x01;
		break;
	case MUX_TYPE_SD_PC_SG_SG:
		reg12 = 0x21;
		break;
	default:
		printf("Wrong mux interface type\n");
		return -1;
	}

	QIXIS_WRITE(brdcfg[12], reg12);
	QIXIS_WRITE(brdcfg[14], reg14);

	return 0;
}

int config_serdes_mux(void)
{
	struct ccsr_gur *gur = (struct ccsr_gur *)CONFIG_SYS_FSL_GUTS_ADDR;
	u32 cfg;

	cfg = in_be32(&gur->rcwsr[4]) & RCWSR4_SRDS1_PRTCL_MASK;
	cfg >>= RCWSR4_SRDS1_PRTCL_SHIFT;

	switch (cfg) {
	case 0x0:
		config_board_mux(MUX_TYPE_SD_PCI4);
		break;
	case 0x30:
		config_board_mux(MUX_TYPE_SD_PC_SA_SG_SG);
		break;
	case 0x60:
		config_board_mux(MUX_TYPE_SD_PC_SG_SG);
		break;
	case 0x70:
		config_board_mux(MUX_TYPE_SD_PC_SA_PC_SG);
		break;
	default:
		printf("SRDS1 prtcl:0x%x\n", cfg);
		break;
	}

	return 0;
}

int misc_init_r(void)
{
	int conflict_flag;

	/* some signals can not enable simultaneous*/
	conflict_flag = 0;
	if (hwconfig("sdhc"))
		conflict_flag++;
	if (hwconfig("iic2"))
		conflict_flag++;
	if (conflict_flag > 1) {
		printf("WARNING: pin conflict !\n");
		return 0;
	}

	conflict_flag = 0;
	if (hwconfig("rgmii"))
		conflict_flag++;
	if (hwconfig("can"))
		conflict_flag++;
	if (hwconfig("sai"))
		conflict_flag++;
	if (conflict_flag > 1) {
		printf("WARNING: pin conflict !\n");
		return 0;
	}

	if (hwconfig("can"))
		config_board_mux(MUX_TYPE_CAN);
	else if (hwconfig("rgmii"))
		config_board_mux(MUX_TYPE_RGMII);
	else if (hwconfig("sai"))
		config_board_mux(MUX_TYPE_SAI);

	if (hwconfig("iic2"))
		config_board_mux(MUX_TYPE_IIC2);
	else if (hwconfig("sdhc"))
		config_board_mux(MUX_TYPE_SDHC);

#ifdef CONFIG_FSL_CAAM
	return sec_init();
#endif
	return 0;
}

int board_init(void)
{
	struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;

	/* Set CCI-400 control override register to
	 * enable barrier transaction */
	out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER);
	/*
	 * Set CCI-400 Slave interface S0, S1, S2 Shareable Override Register
	 * All transactions are treated as non-shareable
	 */
	out_le32(&cci->slave[0].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
	out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
	out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);

	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);

#ifndef CONFIG_SYS_FSL_NO_SERDES
	fsl_serdes_init();
	config_serdes_mux();
#endif

#ifdef CONFIG_U_QE
	u_qe_init();
#endif

	return 0;
}

int ft_board_setup(void *blob, bd_t *bd)
{
	ft_cpu_setup(blob, bd);

#ifdef CONFIG_PCIE_LAYERSCAPE
	ft_pcie_setup(blob, bd);
#endif

	return 0;
}

u8 flash_read8(void *addr)
{
	return __raw_readb(addr + 1);
}

void flash_write16(u16 val, void *addr)
{
	u16 shftval = (((val >> 8) & 0xff) | ((val << 8) & 0xff00));

	__raw_writew(shftval, addr);
}

u16 flash_read16(void *addr)
{
	u16 val = __raw_readw(addr);

	return (((val) >> 8) & 0x00ff) | (((val) << 8) & 0xff00);
}