1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2012, Stefano Babic <sbabic@denx.de>
5 * Based on flea3.c and mx35pdk.c
10 #include <linux/errno.h>
11 #include <asm/arch/imx-regs.h>
12 #include <asm/arch/crm_regs.h>
13 #include <asm/arch/clock.h>
14 #include <asm/arch/iomux-mx35.h>
16 #include <power/pmic.h>
20 #include <fsl_esdhc.h>
21 #include <linux/types.h>
23 #include <asm/arch/sys_proto.h>
27 #define CCM_CCMR_CONFIG 0x003F4208
29 #define ESDCTL_DDR2_CONFIG 0x007FFC3F
35 DECLARE_GLOBAL_DATA_PTR;
39 gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1,
45 static void board_setup_sdram(void)
47 struct esdc_regs *esdc = (struct esdc_regs *)ESDCTL_BASE_ADDR;
49 /* Initialize with default values both CSD0/1 */
50 writel(0x2000, &esdc->esdctl0);
51 writel(0x2000, &esdc->esdctl1);
53 mx3_setup_sdram_bank(CSD0_BASE_ADDR, ESDCTL_DDR2_CONFIG,
57 static void setup_iomux_fec(void)
59 static const iomux_v3_cfg_t fec_pads[] = {
60 MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
61 MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
62 MX35_PAD_FEC_RX_DV__FEC_RX_DV,
63 MX35_PAD_FEC_COL__FEC_COL,
64 MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
65 MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
66 MX35_PAD_FEC_TX_EN__FEC_TX_EN,
67 MX35_PAD_FEC_MDC__FEC_MDC,
68 MX35_PAD_FEC_MDIO__FEC_MDIO,
69 MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
70 MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
71 MX35_PAD_FEC_CRS__FEC_CRS,
72 MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
73 MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
74 MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
75 MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
76 MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
77 MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
80 /* setup pins for FEC */
81 imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
84 int woodburn_init(void)
86 struct ccm_regs *ccm =
87 (struct ccm_regs *)IMX_CCM_BASE;
89 /* initialize PLL and clock configuration */
90 writel(CCM_CCMR_CONFIG, &ccm->ccmr);
96 writel(readl(&ccm->cgr0) |
97 MXC_CCM_CGR0_EMI_MASK |
98 MXC_CCM_CGR0_EDIO_MASK |
99 MXC_CCM_CGR0_EPIT1_MASK,
102 writel(readl(&ccm->cgr1) |
103 MXC_CCM_CGR1_FEC_MASK |
104 MXC_CCM_CGR1_GPIO1_MASK |
105 MXC_CCM_CGR1_GPIO2_MASK |
106 MXC_CCM_CGR1_GPIO3_MASK |
107 MXC_CCM_CGR1_I2C1_MASK |
108 MXC_CCM_CGR1_I2C2_MASK |
109 MXC_CCM_CGR1_I2C3_MASK,
113 __raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr);
115 /* Set pinmux for the required peripherals */
118 /* setup GPIO1_4 FEC_ENABLE signal */
119 imx_iomux_v3_setup_pad(MX35_PAD_SCKR__GPIO1_4);
120 gpio_direction_output(4, 1);
121 imx_iomux_v3_setup_pad(MX35_PAD_HCKT__GPIO1_9);
122 gpio_direction_output(9, 1);
127 #if defined(CONFIG_SPL_BUILD)
128 void board_init_f(ulong dummy)
130 /* Set the stack pointer. */
131 asm volatile("mov sp, %0\n" : : "r"(CONFIG_SPL_STACK));
133 /* Initialize MUX and SDRAM */
137 memset(__bss_start, 0, __bss_end - __bss_start);
139 preloader_console_init();
142 board_init_r(NULL, 0);
145 void spl_board_init(void)
152 /* Booting from NOR in external mode */
153 int board_early_init_f(void)
155 return woodburn_init();
165 /* address of boot parameters */
166 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
168 ret = pmic_init(I2C_PMIC);
172 p = pmic_get("FSL_PMIC");
175 * Set switchers in Auto in NORMAL mode & STANDBY mode
176 * Setup the switcher mode for SW1 & SW2
178 pmic_reg_read(p, REG_SW_4, &val);
179 val = (val & ~((SWMODE_MASK << SWMODE1_SHIFT) |
180 (SWMODE_MASK << SWMODE2_SHIFT)));
181 val |= (SWMODE_AUTO_AUTO << SWMODE1_SHIFT) |
182 (SWMODE_AUTO_AUTO << SWMODE2_SHIFT);
185 pmic_reg_write(p, REG_SW_4, val);
187 /* Setup the switcher mode for SW3 & SW4 */
188 pmic_reg_read(p, REG_SW_5, &val);
189 val &= ~((SWMODE_MASK << SWMODE4_SHIFT) |
190 (SWMODE_MASK << SWMODE3_SHIFT));
191 val |= (SWMODE_AUTO_AUTO << SWMODE4_SHIFT) |
192 (SWMODE_AUTO_AUTO << SWMODE3_SHIFT);
193 pmic_reg_write(p, REG_SW_5, val);
195 /* Set VGEN1 to 3.15V */
196 pmic_reg_read(p, REG_SETTING_0, &val);
197 val &= ~(VGEN1_MASK);
199 pmic_reg_write(p, REG_SETTING_0, val);
201 pmic_reg_read(p, REG_MODE_0, &val);
203 pmic_reg_write(p, REG_MODE_0, val);
209 #if defined(CONFIG_FSL_ESDHC)
210 struct fsl_esdhc_cfg esdhc_cfg = {MMC_SDHC1_BASE_ADDR};
212 int board_mmc_init(bd_t *bis)
214 static const iomux_v3_cfg_t sdhc1_pads[] = {
215 MX35_PAD_SD1_CMD__ESDHC1_CMD,
216 MX35_PAD_SD1_CLK__ESDHC1_CLK,
217 MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
218 MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
219 MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
220 MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
223 /* configure pins for SDHC1 only */
224 imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
226 /* MMC Card Detect on GPIO1_7 */
227 imx_iomux_v3_setup_pad(MX35_PAD_SCKT__GPIO1_7);
228 gpio_direction_input(GPIO_MMC_CD);
230 /* MMC Write Protection on GPIO1_8 */
231 imx_iomux_v3_setup_pad(MX35_PAD_FST__GPIO1_8);
232 gpio_direction_input(GPIO_MMC_WP);
234 esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
236 return fsl_esdhc_initialize(bis, &esdhc_cfg);
239 int board_mmc_getcd(struct mmc *mmc)
241 return !gpio_get_value(GPIO_MMC_CD);
245 u32 get_board_rev(void)
249 return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;