2 * Olimex MX23 Olinuxino board
4 * Copyright (C) 2013 Marek Vasut <marex@denx.de>
6 * SPDX-License-Identifier: GPL-2.0+
12 #include <asm/arch/iomux-mx23.h>
13 #include <asm/arch/imx-regs.h>
14 #include <asm/arch/clock.h>
15 #include <asm/arch/sys_proto.h>
16 #ifdef CONFIG_STATUS_LED
17 #include <status_led.h>
20 DECLARE_GLOBAL_DATA_PTR;
25 int board_early_init_f(void)
27 /* IO0 clock at 480MHz */
28 mxs_set_ioclk(MXC_IOCLK0, 480000);
30 /* SSP0 clock at 96MHz */
31 mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
37 int board_ehci_hcd_init(int port)
39 /* Enable LAN9512 (Maxi) or GL850G (Mini) USB HUB power. */
40 gpio_direction_output(MX23_PAD_GPMI_ALE__GPIO_0_17, 1);
45 int board_ehci_hcd_exit(int port)
47 /* Enable LAN9512 (Maxi) or GL850G (Mini) USB HUB power. */
48 gpio_direction_output(MX23_PAD_GPMI_ALE__GPIO_0_17, 0);
55 return mxs_dram_init();
59 static int mx23_olx_mmc_cd(int id)
61 return 1; /* Card always present */
64 int board_mmc_init(bd_t *bis)
66 return mxsmmc_initialize(bis, 0, NULL, mx23_olx_mmc_cd);
72 /* Adress of boot parameters */
73 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
75 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
76 status_led_set(STATUS_LED_BOOT, STATUS_LED_STATE);
82 /* Fine-tune the DRAM configuration. */
83 void mxs_adjust_memory_params(uint32_t *dram_vals)
85 /* Enable Auto Precharge. */
86 dram_vals[3] |= 1 << 8;
87 /* Enable Fast Writes. */
88 dram_vals[5] |= 1 << 8;
90 dram_vals[10] &= ~(0x3 << 8);
91 dram_vals[10] |= (0x3 << 8);
93 dram_vals[11] &= ~(0x3 << 0);
94 dram_vals[11] |= (0x3 << 0);
96 dram_vals[12] &= ~(0x7 << 0);
97 dram_vals[12] |= (0x1 << 0);
98 /* CASLAT_LIN_GATE = 3*tCK , CASLAT_LIN = 3*tCK, tWTR=2*tCK */
99 dram_vals[13] &= ~((0xf << 16) | (0xf << 24) | (0xf << 0));
100 dram_vals[13] |= (0x6 << 16) | (0x6 << 24) | (0x2 << 0);
102 dram_vals[15] &= ~(0xf << 16);
103 dram_vals[15] |= (0x6 << 16);
104 /* tREF = 1040*tCK */
105 dram_vals[26] &= ~0xffff;
106 dram_vals[26] |= 0x0410;
107 /* tRAS_MAX = 9334*tCK */
108 dram_vals[32] &= ~0xffff;
109 dram_vals[32] |= 0x2475;