3 * Functions for omap5 based boards.
6 * Texas Instruments, <www.ti.com>
9 * Aneesh V <aneesh@ti.com>
10 * Steve Sakoman <steve@sakoman.com>
11 * Sricharan <r.sricharan@ti.com>
13 * See file CREDITS for list of people who contributed to this
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 #include <asm/armv7.h>
33 #include <asm/arch/cpu.h>
34 #include <asm/arch/sys_proto.h>
35 #include <asm/sizes.h>
36 #include <asm/utils.h>
37 #include <asm/arch/gpio.h>
40 DECLARE_GLOBAL_DATA_PTR;
42 u32 *const omap_si_rev = (u32 *)OMAP5_SRAM_SCRATCH_OMAP5_REV;
44 static struct gpio_bank gpio_bank_54xx[6] = {
45 { (void *)OMAP54XX_GPIO1_BASE, METHOD_GPIO_24XX },
46 { (void *)OMAP54XX_GPIO2_BASE, METHOD_GPIO_24XX },
47 { (void *)OMAP54XX_GPIO3_BASE, METHOD_GPIO_24XX },
48 { (void *)OMAP54XX_GPIO4_BASE, METHOD_GPIO_24XX },
49 { (void *)OMAP54XX_GPIO5_BASE, METHOD_GPIO_24XX },
50 { (void *)OMAP54XX_GPIO6_BASE, METHOD_GPIO_24XX },
53 const struct gpio_bank *const omap_gpio_bank = gpio_bank_54xx;
55 #ifdef CONFIG_SPL_BUILD
56 /* LPDDR2 specific IO settings */
57 static void io_settings_lpddr2(void)
59 const struct ctrl_ioregs *ioregs;
62 writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch1_0);
63 writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch1_1);
64 writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch2_0);
65 writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch2_1);
66 writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_0);
67 writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_1);
68 writel(ioregs->ctrl_ddrio_0, (*ctrl)->control_ddrio_0);
69 writel(ioregs->ctrl_ddrio_1, (*ctrl)->control_ddrio_1);
70 writel(ioregs->ctrl_ddrio_2, (*ctrl)->control_ddrio_2);
73 /* DDR3 specific IO settings */
74 static void io_settings_ddr3(void)
77 const struct ctrl_ioregs *ioregs;
80 writel(ioregs->ctrl_ddr3ch, (*ctrl)->control_ddr3ch1_0);
81 writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch1_0);
82 writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch1_1);
84 writel(ioregs->ctrl_ddr3ch, (*ctrl)->control_ddr3ch2_0);
85 writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch2_0);
86 writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch2_1);
88 writel(ioregs->ctrl_ddrio_0, (*ctrl)->control_ddrio_0);
89 writel(ioregs->ctrl_ddrio_1, (*ctrl)->control_ddrio_1);
90 writel(ioregs->ctrl_ddrio_2, (*ctrl)->control_ddrio_2);
92 /* omap5432 does not use lpddr2 */
93 writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_0);
94 writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_1);
96 writel(ioregs->ctrl_emif_sdram_config_ext,
97 (*ctrl)->control_emif1_sdram_config_ext);
98 writel(ioregs->ctrl_emif_sdram_config_ext,
99 (*ctrl)->control_emif2_sdram_config_ext);
101 /* Disable DLL select */
102 io_settings = (readl((*ctrl)->control_port_emif1_sdram_config)
105 (*ctrl)->control_port_emif1_sdram_config);
107 io_settings = (readl((*ctrl)->control_port_emif2_sdram_config)
110 (*ctrl)->control_port_emif2_sdram_config);
114 * Some tuning of IOs for optimal power and performance
116 void do_io_settings(void)
118 u32 io_settings = 0, mask = 0;
120 /* Impedance settings EMMC, C2C 1,2, hsi2 */
121 mask = (ds_mask << 2) | (ds_mask << 8) |
122 (ds_mask << 16) | (ds_mask << 18);
123 io_settings = readl((*ctrl)->control_smart1io_padconf_0) &
125 io_settings |= (ds_60_ohm << 8) | (ds_45_ohm << 16) |
126 (ds_45_ohm << 18) | (ds_60_ohm << 2);
127 writel(io_settings, (*ctrl)->control_smart1io_padconf_0);
129 /* Impedance settings Mcspi2 */
130 mask = (ds_mask << 30);
131 io_settings = readl((*ctrl)->control_smart1io_padconf_1) &
133 io_settings |= (ds_60_ohm << 30);
134 writel(io_settings, (*ctrl)->control_smart1io_padconf_1);
136 /* Impedance settings C2C 3,4 */
137 mask = (ds_mask << 14) | (ds_mask << 16);
138 io_settings = readl((*ctrl)->control_smart1io_padconf_2) &
140 io_settings |= (ds_45_ohm << 14) | (ds_45_ohm << 16);
141 writel(io_settings, (*ctrl)->control_smart1io_padconf_2);
143 /* Slew rate settings EMMC, C2C 1,2 */
144 mask = (sc_mask << 8) | (sc_mask << 16) | (sc_mask << 18);
145 io_settings = readl((*ctrl)->control_smart2io_padconf_0) &
147 io_settings |= (sc_fast << 8) | (sc_na << 16) | (sc_na << 18);
148 writel(io_settings, (*ctrl)->control_smart2io_padconf_0);
150 /* Slew rate settings hsi2, Mcspi2 */
151 mask = (sc_mask << 24) | (sc_mask << 28);
152 io_settings = readl((*ctrl)->control_smart2io_padconf_1) &
154 io_settings |= (sc_fast << 28) | (sc_fast << 24);
155 writel(io_settings, (*ctrl)->control_smart2io_padconf_1);
157 /* Slew rate settings C2C 3,4 */
158 mask = (sc_mask << 16) | (sc_mask << 18);
159 io_settings = readl((*ctrl)->control_smart2io_padconf_2) &
161 io_settings |= (sc_na << 16) | (sc_na << 18);
162 writel(io_settings, (*ctrl)->control_smart2io_padconf_2);
164 /* impedance and slew rate settings for usb */
165 mask = (usb_i_mask << 29) | (usb_i_mask << 26) | (usb_i_mask << 23) |
166 (usb_i_mask << 20) | (usb_i_mask << 17) | (usb_i_mask << 14);
167 io_settings = readl((*ctrl)->control_smart3io_padconf_1) &
169 io_settings |= (ds_60_ohm << 29) | (ds_60_ohm << 26) |
170 (ds_60_ohm << 23) | (sc_fast << 20) |
171 (sc_fast << 17) | (sc_fast << 14);
172 writel(io_settings, (*ctrl)->control_smart3io_padconf_1);
174 if (emif_sdram_type() == EMIF_SDRAM_TYPE_LPDDR2)
175 io_settings_lpddr2();
180 writel(EFUSE_1, (*ctrl)->control_efuse_1);
181 writel(EFUSE_2, (*ctrl)->control_efuse_2);
182 writel(EFUSE_3, (*ctrl)->control_efuse_3);
183 writel(EFUSE_4, (*ctrl)->control_efuse_4);
187 void config_data_eye_leveling_samples(u32 emif_base)
189 /*EMIF_SDRAM_CONFIG_EXT-Read data eye leveling no of samples =4*/
190 if (emif_base == EMIF1_BASE)
191 writel(SDRAM_CONFIG_EXT_RD_LVL_4_SAMPLES,
192 (*ctrl)->control_emif1_sdram_config_ext);
193 else if (emif_base == EMIF2_BASE)
194 writel(SDRAM_CONFIG_EXT_RD_LVL_4_SAMPLES,
195 (*ctrl)->control_emif2_sdram_config_ext);
198 void init_omap_revision(void)
201 * For some of the ES2/ES1 boards ID_CODE is not reliable:
202 * Also, ES1 and ES2 have different ARM revisions
203 * So use ARM revision for identification
205 unsigned int rev = cortex_rev();
208 case MIDR_CORTEX_A15_R0P0:
209 switch (readl(CONTROL_ID_CODE)) {
210 case OMAP5430_CONTROL_ID_CODE_ES1_0:
211 *omap_si_rev = OMAP5430_ES1_0;
213 case OMAP5432_CONTROL_ID_CODE_ES1_0:
215 *omap_si_rev = OMAP5432_ES1_0;
220 *omap_si_rev = OMAP5430_SILICON_ID_INVALID;
224 void reset_cpu(ulong ignored)
226 u32 omap_rev = omap_revision();
229 * WARM reset is not functional in case of OMAP5430 ES1.0 soc.
230 * So use cold reset in case instead.
232 if (omap_rev == OMAP5430_ES1_0)
233 writel(PRM_RSTCTRL_RESET << 0x1, PRM_RSTCTRL);
235 writel(PRM_RSTCTRL_RESET, PRM_RSTCTRL);