| |
| /* |
| * board/amlogic/gxtvbb_skt_v1/firmware/power.c |
| * |
| * Copyright (C) 2015 Amlogic, Inc. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include <serial.h> |
| //#include <stdio.h> |
| |
| #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
| |
| static int pwm_voltage_table[][2] = { |
| { 0x180004, 900}, |
| { 0x170005, 910}, |
| { 0x160006, 920}, |
| { 0x150007, 930}, |
| { 0x140008, 940}, |
| { 0x130009, 950}, |
| { 0x12000a, 960}, |
| { 0x11000b, 970}, |
| { 0x10000c, 980}, |
| { 0x0f000d, 990}, |
| { 0x0e000e, 1000}, |
| { 0x0d000f, 1010}, |
| { 0x0c0010, 1020}, |
| { 0x0b0011, 1030}, |
| { 0x0a0012, 1040}, |
| { 0x090013, 1050}, |
| { 0x080014, 1060}, |
| { 0x070015, 1070}, |
| { 0x060016, 1080}, |
| { 0x050017, 1090}, |
| { 0x040018, 1100}, |
| { 0x030019, 1110}, |
| { 0x02001a, 1120}, |
| { 0x01001b, 1130}, |
| { 0x00001c, 1140}, |
| }; |
| |
| #define P_PIN_MUX_AO (*((volatile unsigned *)(0xc8100000 + (0x05 << 2)))) |
| #define P_PIN_MUX_REG10 (*((volatile unsigned *)(0xda834400 + (0x36 << 2)))) |
| #define P_PIN_MUX_REG7 (*((volatile unsigned *)(0xda834400 + (0x33 << 2)))) |
| |
| #define P_PWM_MISC_REG_AB (*((volatile unsigned *)(0xc1100000 + (0x2156 << 2)))) |
| #define P_PWM_PWM_A (*((volatile unsigned *)(0xc1100000 + (0x2154 << 2)))) |
| |
| #define P_PWM_MISC_REG_EF (*((volatile unsigned *)(0xc1100000 + (0x21b2 << 2)))) |
| #define P_PWM_PWM_E (*((volatile unsigned *)(0xc1100000 + (0x21b0 << 2)))) |
| #define P_PWM_PWM_F (*((volatile unsigned *)(0xc1100000 + (0x21b1 << 2)))) |
| |
| #define P_AO_OUTPUT_EN (*((volatile unsigned *)(0xc8100000 + (0x09 << 2)))) |
| |
| #ifdef P_AO_PWM_MISC_REG_AB |
| #undef P_AO_PWM_MISC_REG_AB |
| #endif |
| #define P_AO_PWM_MISC_REG_AB (*((volatile unsigned *)(0xc8100400 + (0x56 << 2)))) |
| #ifdef P_AO_PWM_PWM_B |
| #undef P_AO_PWM_PWM_B |
| #endif |
| #define P_AO_PWM_PWM_B (*((volatile unsigned *)(0xc8100400 + (0x55 << 2)))) |
| |
| enum pwm_id { |
| pwm_a = 0, |
| pwm_b, |
| pwm_c, |
| pwm_d, |
| pwm_e, |
| pwm_f, |
| pwm_ao_a, |
| pwm_ao_b, |
| }; |
| |
| void pwm_init(int id) |
| { |
| unsigned int reg; |
| |
| /* |
| * TODO: support more pwm controllers, right now only support |
| * PWM_A, PWM_AO_B,PWM_F |
| */ |
| |
| switch (id) { |
| case pwm_a: |
| reg = P_PWM_MISC_REG_AB; |
| reg &= ~(0x7f << 8); |
| reg |= ((1 << 15) | (1 << 0)); |
| P_PWM_MISC_REG_AB = reg; |
| /* |
| * default set to max voltage |
| */ |
| P_PWM_PWM_A = pwm_voltage_table[ARRAY_SIZE(pwm_voltage_table) - 1][0]; |
| |
| reg = P_PIN_MUX_REG10; |
| reg &= ~((1 << 12)|(1<<14)|(1<<22)); |
| P_PIN_MUX_REG10 = reg; |
| |
| reg = P_PIN_MUX_REG10; |
| reg |= (1 << 21); // enable PWM_A |
| P_PIN_MUX_REG10 = reg; |
| break; |
| |
| case pwm_ao_b: |
| reg = P_AO_PWM_MISC_REG_AB; |
| reg &= ~(0x7f << 16); |
| reg |= ((1 << 23) | (1 << 1)|(1<<0)); |
| |
| P_AO_PWM_MISC_REG_AB = reg; |
| /* |
| * default set to max voltage |
| */ |
| //P_AO_PWM_PWM_B = pwm_voltage_table[ARRAY_SIZE(pwm_voltage_table) - 1][0]; |
| |
| reg = P_PIN_MUX_AO; |
| reg &= ~(1 << 22); |
| P_PIN_MUX_AO = reg; |
| |
| reg = P_PIN_MUX_AO; |
| reg |= (1 << 21); // enable PWM_AO_B |
| P_PIN_MUX_AO = reg; |
| break; |
| |
| case pwm_e: |
| reg = P_PWM_MISC_REG_EF; |
| reg &= ~(0x7f << 8); |
| reg |= ((1 << 15) | (1 << 1) |(1 << 0)); |
| P_PWM_MISC_REG_EF = reg; |
| /* |
| * default set to max voltage |
| */ |
| //P_PWM_PWM_E = pwm_voltage_table[ARRAY_SIZE(pwm_voltage_table) - 1][0]; |
| |
| reg = P_PIN_MUX_REG7; |
| reg &= ~((1 << 26)| (1 << 18)|(1 << 30)); |
| P_PIN_MUX_REG7 = reg; |
| |
| reg = P_PIN_MUX_REG7; |
| reg |= (1 << 29); // enable PWM_E |
| P_PIN_MUX_REG7 = reg; |
| break; |
| |
| case pwm_f: |
| reg = P_PWM_MISC_REG_EF; |
| reg &= ~(0x7f << 16); |
| reg |= ((1 << 23) | (1 << 1) |(1 << 0)); |
| P_PWM_MISC_REG_EF = reg; |
| /* |
| * default set to max voltage |
| */ |
| P_PWM_PWM_F = pwm_voltage_table[ARRAY_SIZE(pwm_voltage_table) - 1][0]; |
| |
| reg = P_PIN_MUX_AO; |
| reg &= ~(1 << 21); |
| P_PIN_MUX_AO = reg; |
| |
| reg = P_PIN_MUX_AO; |
| reg |= (1 << 22); // enable PWM_f |
| P_PIN_MUX_AO = reg; |
| break; |
| |
| default: |
| break; |
| } |
| |
| _udelay(200); |
| } |
| |
| void pwm_set_voltage(unsigned int id, unsigned int voltage) |
| { |
| int to; |
| |
| for (to = 0; to < ARRAY_SIZE(pwm_voltage_table); to++) { |
| if (pwm_voltage_table[to][1] >= voltage) { |
| break; |
| } |
| } |
| if (to >= ARRAY_SIZE(pwm_voltage_table)) { |
| to = ARRAY_SIZE(pwm_voltage_table) - 1; |
| } |
| |
| //serial_put_dec( pwm_voltage_table[to][1]); |
| //serial_puts(" mv\n"); |
| |
| //serial_put_dec( pwm_voltage_table[to][0]); |
| //serial_puts(" mv\n"); |
| |
| switch (id) { |
| case pwm_a: |
| P_PWM_PWM_A = pwm_voltage_table[to][0]; |
| break; |
| |
| case pwm_ao_b: |
| P_AO_PWM_PWM_B = pwm_voltage_table[to][0]; |
| break; |
| |
| case pwm_e: |
| P_PWM_PWM_E = pwm_voltage_table[to][0]; |
| break; |
| |
| case pwm_f: |
| P_PWM_PWM_F = pwm_voltage_table[to][0]; |
| break; |
| default: |
| break; |
| } |
| |
| _udelay(200); |
| } |
| |
| static void power_on_3v3_5v(void) |
| { |
| unsigned int val = P_AO_OUTPUT_EN; |
| val = val & (~(1 << 2)); |
| val = val & (~(1 << 18)); |
| P_AO_OUTPUT_EN = val; |
| } |
| void power_init(int mode) |
| { |
| |
| serial_puts("set vcck to "); |
| serial_put_dec(CONFIG_VCCK_INIT_VOLTAGE); |
| serial_puts(" mv\n"); |
| pwm_set_voltage(pwm_e, CONFIG_VCCK_INIT_VOLTAGE); |
| serial_puts("set vddee to "); |
| serial_put_dec(CONFIG_VDDEE_INIT_VOLTAGE); |
| serial_puts(" mv\n"); |
| pwm_set_voltage(pwm_ao_b, CONFIG_VDDEE_INIT_VOLTAGE); |
| pwm_init(pwm_e); |
| pwm_init(pwm_ao_b); |
| power_on_3v3_5v(); |
| } |