[thirdparty/u-boot.git] / board / myir / mys_6ulx / spl.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2020 Linumiz
 * Author: Parthiban Nallathambi <parthiban@linumiz.com>
 */

#include <common.h>
#include <init.h>
#include <spl.h>
#include <asm/arch/clock.h>
#include <asm/io.h>
#include <asm/arch/mx6-ddr.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/sys_proto.h>
#include <fsl_esdhc_imx.h>

/* Configuration for Micron MT41K128M16JT-125, 32M x 16 x 8 -> 256MiB */

static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
	.grp_addds = 0x00000030,
	.grp_ddrmode_ctl = 0x00020000,
	.grp_b0ds = 0x00000030,
	.grp_ctlds = 0x00000030,
	.grp_b1ds = 0x00000030,
	.grp_ddrpke = 0x00000000,
	.grp_ddrmode = 0x00020000,
	.grp_ddr_type = 0x000c0000,
};

static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
	.dram_dqm0 = 0x00000030,
	.dram_dqm1 = 0x00000030,
	.dram_ras = 0x00000030,
	.dram_cas = 0x00000030,
	.dram_odt0 = 0x00000030,
	.dram_odt1 = 0x00000030,
	.dram_sdba2 = 0x00000000,
	.dram_sdclk_0 = 0x00000030,
	.dram_sdqs0 = 0x00000030,
	.dram_sdqs1 = 0x00000030,
	.dram_reset = 0x00000030,
};

static struct mx6_mmdc_calibration mx6_mmcd_calib = {
	.p0_mpwldectrl0 = 0x00000000,
	.p0_mpdgctrl0 = 0x41480148,
	.p0_mprddlctl = 0x40403E42,
	.p0_mpwrdlctl = 0x40405852,
};

struct mx6_ddr_sysinfo ddr_sysinfo = {
	.dsize = 0,		/* Bus size = 16bit */
	.cs_density = 32,
	.ncs = 1,
	.cs1_mirror = 0,
	.rtt_wr = 1,
	.rtt_nom = 1,
	.walat = 1,		/* Write additional latency */
	.ralat = 5,		/* Read additional latency */
	.mif3_mode = 3,		/* Command prediction working mode */
	.bi_on = 1,		/* Bank interleaving enabled */
	.pd_fast_exit = 1,
	.sde_to_rst = 0x10,	/* 14 cycles, 200us (JEDEC default) */
	.rst_to_cke = 0x23,	/* 33 cycles, 500us (JEDEC default) */
	.ddr_type = DDR_TYPE_DDR3,
	.refsel = 1,		/* Refresh cycles at 32KHz */
	.refr = 7,		/* 8 refresh commands per refresh cycle */
};

/* MT41K128M16JT-125 (2Gb density) */
static struct mx6_ddr3_cfg mem_ddr = {
	.mem_speed = 1600,
	.density = 2,
	.width = 16,
	.banks = 8,
	.rowaddr = 14,
	.coladdr = 10,
	.pagesz = 2,
	.trcd = 1375,
	.trcmin = 4875,
	.trasmin = 3500,
};

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

	writel(0xFFFFFFFF, &ccm->CCGR0);
	writel(0xFFFFFFFF, &ccm->CCGR1);
	writel(0xFFFFFFFF, &ccm->CCGR2);
	writel(0xFFFFFFFF, &ccm->CCGR3);
	writel(0xFFFFFFFF, &ccm->CCGR4);
	writel(0xFFFFFFFF, &ccm->CCGR5);
	writel(0xFFFFFFFF, &ccm->CCGR6);
}

static void spl_dram_init(void)
{
	mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
	mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr);
}

#ifdef CONFIG_FSL_ESDHC_IMX

#define USDHC_PAD_CTRL (PAD_CTL_PKE         | PAD_CTL_PUE       | \
			PAD_CTL_PUS_22K_UP  | PAD_CTL_SPEED_LOW | \
			PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | \
			PAD_CTL_HYS)

static iomux_v3_cfg_t const usdhc1_pads[] = {
	MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_UART1_RTS_B__USDHC1_CD_B | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};

#ifndef CONFIG_NAND_MXS
static iomux_v3_cfg_t const usdhc2_pads[] = {
	MX6_PAD_NAND_RE_B__USDHC2_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NAND_WE_B__USDHC2_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NAND_DATA00__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NAND_DATA01__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NAND_DATA02__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NAND_DATA03__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NAND_DATA04__USDHC2_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NAND_DATA05__USDHC2_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NAND_DATA06__USDHC2_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NAND_DATA07__USDHC2_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
#endif

static struct fsl_esdhc_cfg usdhc_cfg[] = {
	{
		.esdhc_base = USDHC1_BASE_ADDR,
		.max_bus_width = 4,
	},
#ifndef CONFIG_NAND_MXS
	{
		.esdhc_base = USDHC2_BASE_ADDR,
		.max_bus_width = 8,
	},
#endif
};

int board_mmc_getcd(struct mmc *mmc)
{
	return 1;
}

int board_mmc_init(struct bd_info *bis)
{
	int i, ret;

	for (i = 0; i < CFG_SYS_FSL_USDHC_NUM; i++) {
		switch (i) {
		case 0:
			SETUP_IOMUX_PADS(usdhc1_pads);
			usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
			break;
#ifndef CONFIG_NAND_MXS
		case 1:
			SETUP_IOMUX_PADS(usdhc2_pads);
			usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
			break;
#endif
		default:
			printf("Warning - USDHC%d controller not supporting\n",
			       i + 1);
			return 0;
		}

		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
		if (ret) {
			printf("Warning: failed to initialize mmc dev %d\n", i);
			return ret;
		}
	}

	return 0;
}

#endif /* CONFIG_FSL_ESDHC_IMX */

void board_init_f(ulong dummy)
{
	ccgr_init();

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

	/* Setup iomux and fec */
	board_early_init_f();

	/* Setup GP timer */
	timer_init();

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

	/* DDR initialization */
	spl_dram_init();
}
Commit	Line	Data
10e959a1 PN	1	// SPDX-License-Identifier: GPL-2.0+
	2	/*
	3	* Copyright (C) 2020 Linumiz
	4	* Author: Parthiban Nallathambi <parthiban@linumiz.com>
	5	*/
	6
d678a59d	7	#include <common.h>
10e959a1 PN	8	#include <init.h>
	9	#include <spl.h>
	10	#include <asm/arch/clock.h>
	11	#include <asm/io.h>
	12	#include <asm/arch/mx6-ddr.h>
	13	#include <asm/arch/mx6-pins.h>
	14	#include <asm/arch/crm_regs.h>
	15	#include <asm/arch/sys_proto.h>
	16	#include <fsl_esdhc_imx.h>
	17
	18	/* Configuration for Micron MT41K128M16JT-125, 32M x 16 x 8 -> 256MiB */
	19
	20	static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
	21	.grp_addds = 0x00000030,
	22	.grp_ddrmode_ctl = 0x00020000,
	23	.grp_b0ds = 0x00000030,
	24	.grp_ctlds = 0x00000030,
	25	.grp_b1ds = 0x00000030,
	26	.grp_ddrpke = 0x00000000,
	27	.grp_ddrmode = 0x00020000,
	28	.grp_ddr_type = 0x000c0000,
	29	};
	30
	31	static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
	32	.dram_dqm0 = 0x00000030,
	33	.dram_dqm1 = 0x00000030,
	34	.dram_ras = 0x00000030,
	35	.dram_cas = 0x00000030,
	36	.dram_odt0 = 0x00000030,
	37	.dram_odt1 = 0x00000030,
	38	.dram_sdba2 = 0x00000000,
	39	.dram_sdclk_0 = 0x00000030,
	40	.dram_sdqs0 = 0x00000030,
	41	.dram_sdqs1 = 0x00000030,
	42	.dram_reset = 0x00000030,
	43	};
	44
	45	static struct mx6_mmdc_calibration mx6_mmcd_calib = {
	46	.p0_mpwldectrl0 = 0x00000000,
	47	.p0_mpdgctrl0 = 0x41480148,
	48	.p0_mprddlctl = 0x40403E42,
	49	.p0_mpwrdlctl = 0x40405852,
	50	};
	51
	52	struct mx6_ddr_sysinfo ddr_sysinfo = {
	53	.dsize = 0, /* Bus size = 16bit */
	54	.cs_density = 32,
	55	.ncs = 1,
	56	.cs1_mirror = 0,
	57	.rtt_wr = 1,
	58	.rtt_nom = 1,
	59	.walat = 1, /* Write additional latency */
	60	.ralat = 5, /* Read additional latency */
	61	.mif3_mode = 3, /* Command prediction working mode */
	62	.bi_on = 1, /* Bank interleaving enabled */
	63	.pd_fast_exit = 1,
	64	.sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
	65	.rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
	66	.ddr_type = DDR_TYPE_DDR3,
	67	.refsel = 1, /* Refresh cycles at 32KHz */
	68	.refr = 7, /* 8 refresh commands per refresh cycle */
	69	};
	70
	71	/* MT41K128M16JT-125 (2Gb density) */
72	static struct mx6_ddr3_cfg mem_ddr = {
73	.mem_speed = 1600,
74	.density = 2,
75	.width = 16,
76	.banks = 8,
77	.rowaddr = 14,
78	.coladdr = 10,
79	.pagesz = 2,
80	.trcd = 1375,
81	.trcmin = 4875,
82	.trasmin = 3500,
83	};
84
85	static void ccgr_init(void)
86	{
87	struct mxc_ccm_reg ccm = (struct mxc_ccm_reg )CCM_BASE_ADDR;
88
89	writel(0xFFFFFFFF, &ccm->CCGR0);
90	writel(0xFFFFFFFF, &ccm->CCGR1);
91	writel(0xFFFFFFFF, &ccm->CCGR2);
92	writel(0xFFFFFFFF, &ccm->CCGR3);
93	writel(0xFFFFFFFF, &ccm->CCGR4);
94	writel(0xFFFFFFFF, &ccm->CCGR5);
95	writel(0xFFFFFFFF, &ccm->CCGR6);
96	}
97
98	static void spl_dram_init(void)
99	{
100	mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
101	mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr);
102	}
103
104	#ifdef CONFIG_FSL_ESDHC_IMX
105
106	#define USDHC_PAD_CTRL (PAD_CTL_PKE \| PAD_CTL_PUE \| \
107	PAD_CTL_PUS_22K_UP \| PAD_CTL_SPEED_LOW \| \
108	PAD_CTL_DSE_80ohm \| PAD_CTL_SRE_FAST \| \
109	PAD_CTL_HYS)
110
111	static iomux_v3_cfg_t const usdhc1_pads[] = {
112	MX6_PAD_SD1_CLK__USDHC1_CLK \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
113	MX6_PAD_SD1_CMD__USDHC1_CMD \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
114	MX6_PAD_SD1_DATA0__USDHC1_DATA0 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
115	MX6_PAD_SD1_DATA1__USDHC1_DATA1 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
116	MX6_PAD_SD1_DATA2__USDHC1_DATA2 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
117	MX6_PAD_SD1_DATA3__USDHC1_DATA3 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
118	MX6_PAD_UART1_RTS_B__USDHC1_CD_B \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
119	};
120
121	#ifndef CONFIG_NAND_MXS
122	static iomux_v3_cfg_t const usdhc2_pads[] = {
123	MX6_PAD_NAND_RE_B__USDHC2_CLK \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
124	MX6_PAD_NAND_WE_B__USDHC2_CMD \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
125	MX6_PAD_NAND_DATA00__USDHC2_DATA0 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
126	MX6_PAD_NAND_DATA01__USDHC2_DATA1 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
127	MX6_PAD_NAND_DATA02__USDHC2_DATA2 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
128	MX6_PAD_NAND_DATA03__USDHC2_DATA3 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
129	MX6_PAD_NAND_DATA04__USDHC2_DATA4 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
130	MX6_PAD_NAND_DATA05__USDHC2_DATA5 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
131	MX6_PAD_NAND_DATA06__USDHC2_DATA6 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
132	MX6_PAD_NAND_DATA07__USDHC2_DATA7 \| MUX_PAD_CTRL(USDHC_PAD_CTRL),
133	};
134	#endif
135
136	static struct fsl_esdhc_cfg usdhc_cfg[] = {
137	{
138	.esdhc_base = USDHC1_BASE_ADDR,
139	.max_bus_width = 4,
140	},
141	#ifndef CONFIG_NAND_MXS
142	{
143	.esdhc_base = USDHC2_BASE_ADDR,
144	.max_bus_width = 8,
145	},
146	#endif
147	};
148
149	int board_mmc_getcd(struct mmc *mmc)
150	{
151	return 1;
152	}
153
154	int board_mmc_init(struct bd_info *bis)
155	{
156	int i, ret;
157
6cc04547	158	for (i = 0; i < CFG_SYS_FSL_USDHC_NUM; i++) {
10e959a1 PN	159	switch (i) {
	160	case 0:
	161	SETUP_IOMUX_PADS(usdhc1_pads);
	162	usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
	163	break;
	164	#ifndef CONFIG_NAND_MXS
	165	case 1:
	166	SETUP_IOMUX_PADS(usdhc2_pads);
	167	usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
	168	break;
	169	#endif
	170	default:
	171	printf("Warning - USDHC%d controller not supporting\n",
	172	i + 1);
	173	return 0;
	174	}
	175
	176	ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
	177	if (ret) {
	178	printf("Warning: failed to initialize mmc dev %d\n", i);
	179	return ret;
	180	}
	181	}
	182
	183	return 0;
	184	}
	185
	186	#endif /* CONFIG_FSL_ESDHC_IMX */
	187
	188	void board_init_f(ulong dummy)
	189	{
	190	ccgr_init();
	191
	192	/* Setup AIPS and disable watchdog */
	193	arch_cpu_init();
	194
	195	/* Setup iomux and fec */
	196	board_early_init_f();
	197
	198	/* Setup GP timer */
	199	timer_init();
	200
	201	/* UART clocks enabled and gd valid - init serial console */
	202	preloader_console_init();
	203
	204	/* DDR initialization */
	205	spl_dram_init();
	206	}