2 * Copyright (C) 2012, Stefano Babic <sbabic@denx.de>
4 * Based on flea3.c and mx35pdk.c
6 * SPDX-License-Identifier: GPL-2.0+
11 #include <linux/errno.h>
12 #include <asm/arch/imx-regs.h>
13 #include <asm/arch/crm_regs.h>
14 #include <asm/arch/clock.h>
15 #include <asm/arch/iomux-mx35.h>
17 #include <power/pmic.h>
21 #include <fsl_esdhc.h>
22 #include <linux/types.h>
24 #include <asm/arch/sys_proto.h>
28 #define CCM_CCMR_CONFIG 0x003F4208
30 #define ESDCTL_DDR2_CONFIG 0x007FFC3F
36 DECLARE_GLOBAL_DATA_PTR
;
40 gd
->ram_size
= get_ram_size((long *)PHYS_SDRAM_1
,
46 static void board_setup_sdram(void)
48 struct esdc_regs
*esdc
= (struct esdc_regs
*)ESDCTL_BASE_ADDR
;
50 /* Initialize with default values both CSD0/1 */
51 writel(0x2000, &esdc
->esdctl0
);
52 writel(0x2000, &esdc
->esdctl1
);
54 mx3_setup_sdram_bank(CSD0_BASE_ADDR
, ESDCTL_DDR2_CONFIG
,
58 static void setup_iomux_fec(void)
60 static const iomux_v3_cfg_t fec_pads
[] = {
61 MX35_PAD_FEC_TX_CLK__FEC_TX_CLK
,
62 MX35_PAD_FEC_RX_CLK__FEC_RX_CLK
,
63 MX35_PAD_FEC_RX_DV__FEC_RX_DV
,
64 MX35_PAD_FEC_COL__FEC_COL
,
65 MX35_PAD_FEC_RDATA0__FEC_RDATA_0
,
66 MX35_PAD_FEC_TDATA0__FEC_TDATA_0
,
67 MX35_PAD_FEC_TX_EN__FEC_TX_EN
,
68 MX35_PAD_FEC_MDC__FEC_MDC
,
69 MX35_PAD_FEC_MDIO__FEC_MDIO
,
70 MX35_PAD_FEC_TX_ERR__FEC_TX_ERR
,
71 MX35_PAD_FEC_RX_ERR__FEC_RX_ERR
,
72 MX35_PAD_FEC_CRS__FEC_CRS
,
73 MX35_PAD_FEC_RDATA1__FEC_RDATA_1
,
74 MX35_PAD_FEC_TDATA1__FEC_TDATA_1
,
75 MX35_PAD_FEC_RDATA2__FEC_RDATA_2
,
76 MX35_PAD_FEC_TDATA2__FEC_TDATA_2
,
77 MX35_PAD_FEC_RDATA3__FEC_RDATA_3
,
78 MX35_PAD_FEC_TDATA3__FEC_TDATA_3
,
81 /* setup pins for FEC */
82 imx_iomux_v3_setup_multiple_pads(fec_pads
, ARRAY_SIZE(fec_pads
));
85 int woodburn_init(void)
87 struct ccm_regs
*ccm
=
88 (struct ccm_regs
*)IMX_CCM_BASE
;
90 /* initialize PLL and clock configuration */
91 writel(CCM_CCMR_CONFIG
, &ccm
->ccmr
);
97 writel(readl(&ccm
->cgr0
) |
98 MXC_CCM_CGR0_EMI_MASK
|
99 MXC_CCM_CGR0_EDIO_MASK
|
100 MXC_CCM_CGR0_EPIT1_MASK
,
103 writel(readl(&ccm
->cgr1
) |
104 MXC_CCM_CGR1_FEC_MASK
|
105 MXC_CCM_CGR1_GPIO1_MASK
|
106 MXC_CCM_CGR1_GPIO2_MASK
|
107 MXC_CCM_CGR1_GPIO3_MASK
|
108 MXC_CCM_CGR1_I2C1_MASK
|
109 MXC_CCM_CGR1_I2C2_MASK
|
110 MXC_CCM_CGR1_I2C3_MASK
,
114 __raw_writel(readl(&ccm
->rcsr
) | MXC_CCM_RCSR_NFC_FMS
, &ccm
->rcsr
);
116 /* Set pinmux for the required peripherals */
119 /* setup GPIO1_4 FEC_ENABLE signal */
120 imx_iomux_v3_setup_pad(MX35_PAD_SCKR__GPIO1_4
);
121 gpio_direction_output(4, 1);
122 imx_iomux_v3_setup_pad(MX35_PAD_HCKT__GPIO1_9
);
123 gpio_direction_output(9, 1);
128 #if defined(CONFIG_SPL_BUILD)
129 void board_init_f(ulong dummy
)
131 /* Set the stack pointer. */
132 asm volatile("mov sp, %0\n" : : "r"(CONFIG_SPL_STACK
));
134 /* Initialize MUX and SDRAM */
138 memset(__bss_start
, 0, __bss_end
- __bss_start
);
140 preloader_console_init();
143 board_init_r(NULL
, 0);
146 void spl_board_init(void)
153 /* Booting from NOR in external mode */
154 int board_early_init_f(void)
156 return woodburn_init();
166 /* address of boot parameters */
167 gd
->bd
->bi_boot_params
= PHYS_SDRAM_1
+ 0x100;
169 ret
= pmic_init(I2C_PMIC
);
173 p
= pmic_get("FSL_PMIC");
176 * Set switchers in Auto in NORMAL mode & STANDBY mode
177 * Setup the switcher mode for SW1 & SW2
179 pmic_reg_read(p
, REG_SW_4
, &val
);
180 val
= (val
& ~((SWMODE_MASK
<< SWMODE1_SHIFT
) |
181 (SWMODE_MASK
<< SWMODE2_SHIFT
)));
182 val
|= (SWMODE_AUTO_AUTO
<< SWMODE1_SHIFT
) |
183 (SWMODE_AUTO_AUTO
<< SWMODE2_SHIFT
);
186 pmic_reg_write(p
, REG_SW_4
, val
);
188 /* Setup the switcher mode for SW3 & SW4 */
189 pmic_reg_read(p
, REG_SW_5
, &val
);
190 val
&= ~((SWMODE_MASK
<< SWMODE4_SHIFT
) |
191 (SWMODE_MASK
<< SWMODE3_SHIFT
));
192 val
|= (SWMODE_AUTO_AUTO
<< SWMODE4_SHIFT
) |
193 (SWMODE_AUTO_AUTO
<< SWMODE3_SHIFT
);
194 pmic_reg_write(p
, REG_SW_5
, val
);
196 /* Set VGEN1 to 3.15V */
197 pmic_reg_read(p
, REG_SETTING_0
, &val
);
198 val
&= ~(VGEN1_MASK
);
200 pmic_reg_write(p
, REG_SETTING_0
, val
);
202 pmic_reg_read(p
, REG_MODE_0
, &val
);
204 pmic_reg_write(p
, REG_MODE_0
, val
);
210 #if defined(CONFIG_FSL_ESDHC)
211 struct fsl_esdhc_cfg esdhc_cfg
= {MMC_SDHC1_BASE_ADDR
};
213 int board_mmc_init(bd_t
*bis
)
215 static const iomux_v3_cfg_t sdhc1_pads
[] = {
216 MX35_PAD_SD1_CMD__ESDHC1_CMD
,
217 MX35_PAD_SD1_CLK__ESDHC1_CLK
,
218 MX35_PAD_SD1_DATA0__ESDHC1_DAT0
,
219 MX35_PAD_SD1_DATA1__ESDHC1_DAT1
,
220 MX35_PAD_SD1_DATA2__ESDHC1_DAT2
,
221 MX35_PAD_SD1_DATA3__ESDHC1_DAT3
,
224 /* configure pins for SDHC1 only */
225 imx_iomux_v3_setup_multiple_pads(sdhc1_pads
, ARRAY_SIZE(sdhc1_pads
));
227 /* MMC Card Detect on GPIO1_7 */
228 imx_iomux_v3_setup_pad(MX35_PAD_SCKT__GPIO1_7
);
229 gpio_direction_input(GPIO_MMC_CD
);
231 /* MMC Write Protection on GPIO1_8 */
232 imx_iomux_v3_setup_pad(MX35_PAD_FST__GPIO1_8
);
233 gpio_direction_input(GPIO_MMC_WP
);
235 esdhc_cfg
.sdhc_clk
= mxc_get_clock(MXC_ESDHC1_CLK
);
237 return fsl_esdhc_initialize(bis
, &esdhc_cfg
);
240 int board_mmc_getcd(struct mmc
*mmc
)
242 return !gpio_get_value(GPIO_MMC_CD
);
246 u32
get_board_rev(void)
250 return (get_cpu_rev() & ~(0xF << 8)) | (rev
& 0xF) << 8;