Shashank Mittal | 23b8f42 | 2010-04-16 19:27:21 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2008, Google Inc. |
| 3 | * All rights reserved. |
| 4 | * Copyright (c) 2009-2010, Code Aurora Forum. All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * * Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * * Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in |
| 13 | * the documentation and/or other materials provided with the |
| 14 | * distribution. |
| 15 | * * Neither the name of Google, Inc. nor the names of its contributors |
| 16 | * may be used to endorse or promote products derived from this |
| 17 | * software without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 22 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 23 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 24 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 25 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 26 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 27 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 28 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 29 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 30 | * SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | #include <debug.h> |
| 34 | #include <reg.h> |
| 35 | |
| 36 | #include <dev/fbcon.h> |
| 37 | #include <kernel/thread.h> |
| 38 | #include <platform/debug.h> |
| 39 | #include <platform/iomap.h> |
Shashank Mittal | c69512e | 2010-09-22 16:40:48 -0700 | [diff] [blame^] | 40 | #include <i2c_qup.h> |
| 41 | |
| 42 | #define CONVERT_ENDIAN_U32(val) \ |
| 43 | ((((uint32_t)(val) & 0x000000FF) << 24) | \ |
| 44 | (((uint32_t)(val) & 0x0000FF00) << 8) | \ |
| 45 | (((uint32_t)(val) & 0x00FF0000) >> 8) | \ |
| 46 | (((uint32_t)(val) & 0xFF000000) >> 24)) |
| 47 | |
| 48 | #define CONVERT_ENDIAN_U16(val) \ |
| 49 | ((((uint16_t)(val) & 0x00FF) << 8) | \ |
| 50 | (((uint16_t)(val) & 0xFF00) >> 8)) |
| 51 | |
| 52 | /* Configuration Data Table */ |
| 53 | #define CDT_MAGIC_NUMBER 0x43445400 |
| 54 | struct cdt_header |
| 55 | { |
| 56 | uint32_t magic; /* Magic number */ |
| 57 | uint16_t version; /* Version number */ |
| 58 | uint32_t reserved1; |
| 59 | uint32_t reserved2; |
| 60 | }__attribute__((packed)); |
Shashank Mittal | 23b8f42 | 2010-04-16 19:27:21 -0700 | [diff] [blame] | 61 | |
| 62 | void platform_init_interrupts(void); |
| 63 | void platform_init_timer(); |
| 64 | |
| 65 | void uart3_clock_init(void); |
| 66 | void uart_init(void); |
| 67 | |
| 68 | struct fbcon_config *lcdc_init(void); |
| 69 | |
| 70 | void platform_early_init(void) |
| 71 | { |
| 72 | platform_init_interrupts(); |
| 73 | platform_init_timer(); |
| 74 | } |
| 75 | |
| 76 | void platform_init(void) |
| 77 | { |
| 78 | dprintf(INFO, "platform_init()\n"); |
| 79 | } |
| 80 | |
| 81 | void display_init(void) |
| 82 | { |
| 83 | } |
| 84 | |
| 85 | void secondary_core(unsigned sec_entry) |
| 86 | { |
| 87 | writel(sec_entry, 0x2A040020); |
| 88 | writel(0x0, 0x009035A0); //VDD_SC1_ARRAY_CLAMP_GFS_CTL |
| 89 | writel(0x0, 0x00902D80); //SCSS_CPU1CORE_RESET |
| 90 | writel(0x3, 0x00902E64); //SCSS_DBG_STATUS_CORE_PWRDUP |
| 91 | } |
Shashank Mittal | c69512e | 2010-09-22 16:40:48 -0700 | [diff] [blame^] | 92 | |
| 93 | static struct qup_i2c_dev* dev = NULL; |
| 94 | |
| 95 | uint32_t eprom_read (uint16_t addr, uint8_t count) { |
| 96 | uint32_t ret = 0; |
| 97 | if(!dev){ |
| 98 | return ret; |
| 99 | } |
| 100 | /* Create a i2c_msg buffer, that is used to put the controller into |
| 101 | * read mode and then to read some data. |
| 102 | */ |
| 103 | struct i2c_msg msg_buf[] = { |
| 104 | {EEPROM_I2C_ADDRESS, I2C_M_WR, 2, &addr}, |
| 105 | {EEPROM_I2C_ADDRESS, I2C_M_RD, count, &ret} |
| 106 | }; |
| 107 | |
| 108 | qup_i2c_xfer(dev, msg_buf, 2); |
| 109 | return ret; |
| 110 | } |
| 111 | |
| 112 | /* Read EEPROM to find out product id. Return 0 in case of failure */ |
| 113 | uint32_t platform_id_read (void) |
| 114 | { |
| 115 | uint32_t id = 0; |
| 116 | uint16_t offset = 0; |
| 117 | dev = qup_i2c_init(GSBI8_BASE, 100000, 24000000); |
| 118 | if(!dev){ |
| 119 | return id; |
| 120 | } |
| 121 | /* Check if EPROM is valid */ |
| 122 | if (CONVERT_ENDIAN_U32(eprom_read(0, 4)) == CDT_MAGIC_NUMBER) |
| 123 | { |
| 124 | /* Get offset for platform ID info from Meta Data block 0 */ |
| 125 | offset = eprom_read(CONVERT_ENDIAN_U16(0 + |
| 126 | sizeof(struct cdt_header)), 2); |
| 127 | /* Read platform ID */ |
| 128 | id = eprom_read(CONVERT_ENDIAN_U16(offset), 4); |
| 129 | id = CONVERT_ENDIAN_U32(id); |
| 130 | id = (id & 0x00FF0000) >> 16; |
| 131 | } |
| 132 | return id; |
| 133 | } |
| 134 | |