diff options
Diffstat (limited to 'board/corscience')
| -rw-r--r-- | board/corscience/tricorder/Makefile | 2 | ||||
| -rw-r--r-- | board/corscience/tricorder/led.c | 80 | ||||
| -rw-r--r-- | board/corscience/tricorder/tricorder-eeprom.c | 251 | ||||
| -rw-r--r-- | board/corscience/tricorder/tricorder-eeprom.h | 41 | ||||
| -rw-r--r-- | board/corscience/tricorder/tricorder.c | 126 | ||||
| -rw-r--r-- | board/corscience/tricorder/tricorder.h | 4 |
6 files changed, 492 insertions, 12 deletions
diff --git a/board/corscience/tricorder/Makefile b/board/corscience/tricorder/Makefile index d5316f8d38..266432dd2d 100644 --- a/board/corscience/tricorder/Makefile +++ b/board/corscience/tricorder/Makefile @@ -8,4 +8,4 @@ # SPDX-License-Identifier: GPL-2.0+ # -obj-y := tricorder.o +obj-y := tricorder.o tricorder-eeprom.o led.o diff --git a/board/corscience/tricorder/led.c b/board/corscience/tricorder/led.c new file mode 100644 index 0000000000..30f2f508f0 --- /dev/null +++ b/board/corscience/tricorder/led.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2013 Corscience GmbH & Co.KG + * Andreas Bießmann <andreas.biessmann@corscience.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <status_led.h> +#include <twl4030.h> +#include <asm/arch/cpu.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <asm/gpio.h> + +#define TRICORDER_STATUS_LED_YELLOW 42 +#define TRICORDER_STATUS_LED_GREEN 43 + +void __led_init(led_id_t mask, int state) +{ + __led_set(mask, state); +} + +void __led_toggle(led_id_t mask) +{ + int toggle_gpio = 0; +#ifdef STATUS_LED_BIT + if (!toggle_gpio && STATUS_LED_BIT & mask) + toggle_gpio = TRICORDER_STATUS_LED_GREEN; +#endif +#ifdef STATUS_LED_BIT1 + if (!toggle_gpio && STATUS_LED_BIT1 & mask) + toggle_gpio = TRICORDER_STATUS_LED_YELLOW; +#endif +#ifdef STATUS_LED_BIT2 + if (!toggle_gpio && STATUS_LED_BIT2 & mask) { + uint8_t val; + twl4030_i2c_read_u8(TWL4030_CHIP_LED, TWL4030_LED_LEDEN, + &val); + val ^= (TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDAPWM); + twl4030_i2c_write_u8(TWL4030_CHIP_LED, TWL4030_LED_LEDEN, + val); + } +#endif + if (toggle_gpio) { + int state; + gpio_request(toggle_gpio, ""); + state = gpio_get_value(toggle_gpio); + gpio_set_value(toggle_gpio, !state); + } +} + +void __led_set(led_id_t mask, int state) +{ +#ifdef STATUS_LED_BIT + if (STATUS_LED_BIT & mask) { + gpio_request(TRICORDER_STATUS_LED_GREEN, ""); + gpio_direction_output(TRICORDER_STATUS_LED_GREEN, 0); + gpio_set_value(TRICORDER_STATUS_LED_GREEN, state); + } +#endif +#ifdef STATUS_LED_BIT1 + if (STATUS_LED_BIT1 & mask) { + gpio_request(TRICORDER_STATUS_LED_YELLOW, ""); + gpio_direction_output(TRICORDER_STATUS_LED_YELLOW, 0); + gpio_set_value(TRICORDER_STATUS_LED_YELLOW, state); + } +#endif +#ifdef STATUS_LED_BIT2 + if (STATUS_LED_BIT2 & mask) { + if (STATUS_LED_OFF == state) + twl4030_i2c_write_u8(TWL4030_CHIP_LED, + TWL4030_LED_LEDEN, 0); + else + twl4030_i2c_write_u8(TWL4030_CHIP_LED, + TWL4030_LED_LEDEN, + (TWL4030_LED_LEDEN_LEDAON | + TWL4030_LED_LEDEN_LEDAPWM)); + } +#endif +} diff --git a/board/corscience/tricorder/tricorder-eeprom.c b/board/corscience/tricorder/tricorder-eeprom.c new file mode 100644 index 0000000000..1c74a0f7d0 --- /dev/null +++ b/board/corscience/tricorder/tricorder-eeprom.c @@ -0,0 +1,251 @@ +/* + * (C) Copyright 2013 + * Corscience GmbH & Co. KG, <www.corscience.de> + * Andreas Bießmann <andreas.biessmann@corscience.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <i2c.h> + +#include "tricorder-eeprom.h" + +static inline void warn_wrong_value(const char *msg, unsigned int a, + unsigned int b) +{ + printf("Expected EEPROM %s %08x, got %08x\n", msg, a, b); +} + +static int handle_eeprom_v0(struct tricorder_eeprom *eeprom) +{ + struct tricorder_eeprom_v0 { + uint32_t magic; + uint16_t length; + uint16_t version; + char board_name[TRICORDER_BOARD_NAME_LENGTH]; + char board_version[TRICORDER_BOARD_VERSION_LENGTH]; + char board_serial[TRICORDER_BOARD_SERIAL_LENGTH]; + uint32_t crc32; + } __packed eepromv0; + uint32_t crc; + + printf("Old EEPROM (v0), consider rewrite!\n"); + + if (be16_to_cpu(eeprom->length) != sizeof(eepromv0)) { + warn_wrong_value("length", sizeof(eepromv0), + be16_to_cpu(eeprom->length)); + return 1; + } + + memcpy(&eepromv0, eeprom, sizeof(eepromv0)); + + crc = crc32(0L, (unsigned char *)&eepromv0, + sizeof(eepromv0) - sizeof(eepromv0.crc32)); + if (be32_to_cpu(eepromv0.crc32) != crc) { + warn_wrong_value("CRC", be32_to_cpu(eepromv0.crc32), + crc); + return 1; + } + + /* Ok the content is correct, do the conversion */ + memset(eeprom->interface_version, 0x0, + TRICORDER_INTERFACE_VERSION_LENGTH); + crc = crc32(0L, (unsigned char *)eeprom, TRICORDER_EEPROM_CRC_SIZE); + eeprom->crc32 = cpu_to_be32(crc); + + return 0; +} + +static int handle_eeprom_v1(struct tricorder_eeprom *eeprom) +{ + uint32_t crc; + + if (be16_to_cpu(eeprom->length) != TRICORDER_EEPROM_SIZE) { + warn_wrong_value("length", TRICORDER_EEPROM_SIZE, + be16_to_cpu(eeprom->length)); + return 1; + } + + crc = crc32(0L, (unsigned char *)eeprom, TRICORDER_EEPROM_CRC_SIZE); + if (be32_to_cpu(eeprom->crc32) != crc) { + warn_wrong_value("CRC", be32_to_cpu(eeprom->crc32), crc); + return 1; + } + + return 0; +} + +int tricorder_get_eeprom(int addr, struct tricorder_eeprom *eeprom) +{ +#ifdef CONFIG_SYS_EEPROM_BUS_NUM + unsigned int bus = i2c_get_bus_num(); + i2c_set_bus_num(CONFIG_SYS_EEPROM_BUS_NUM); +#endif + + memset(eeprom, 0, TRICORDER_EEPROM_SIZE); + + i2c_read(addr, 0, 2, (unsigned char *)eeprom, TRICORDER_EEPROM_SIZE); +#ifdef CONFIG_SYS_EEPROM_BUS_NUM + i2c_set_bus_num(bus); +#endif + + if (be32_to_cpu(eeprom->magic) != TRICORDER_EEPROM_MAGIC) { + warn_wrong_value("magic", TRICORDER_EEPROM_MAGIC, + be32_to_cpu(eeprom->magic)); + return 1; + } + + switch (be16_to_cpu(eeprom->version)) { + case 0: + return handle_eeprom_v0(eeprom); + case 1: + return handle_eeprom_v1(eeprom); + default: + warn_wrong_value("version", TRICORDER_EEPROM_VERSION, + be16_to_cpu(eeprom->version)); + return 1; + } +} + +#if !defined(CONFIG_SPL) +int tricorder_eeprom_read(unsigned devaddr) +{ + struct tricorder_eeprom eeprom; + int ret = tricorder_get_eeprom(devaddr, &eeprom); + + if (ret) + return ret; + + printf("Board type: %.*s\n", + sizeof(eeprom.board_name), eeprom.board_name); + printf("Board version: %.*s\n", + sizeof(eeprom.board_version), eeprom.board_version); + printf("Board serial: %.*s\n", + sizeof(eeprom.board_serial), eeprom.board_serial); + printf("Board interface version: %.*s\n", + sizeof(eeprom.interface_version), + eeprom.interface_version); + + return ret; +} + +int tricorder_eeprom_write(unsigned devaddr, const char *name, + const char *version, const char *serial, const char *interface) +{ + struct tricorder_eeprom eeprom, eeprom_verify; + size_t length; + uint32_t crc; + int ret; + unsigned char *p; + int i; +#ifdef CONFIG_SYS_EEPROM_BUS_NUM + unsigned int bus; +#endif + + memset(eeprom, 0, TRICORDER_EEPROM_SIZE); + memset(eeprom_verify, 0, TRICORDER_EEPROM_SIZE); + + eeprom.magic = cpu_to_be32(TRICORDER_EEPROM_MAGIC); + eeprom.length = cpu_to_be16(TRICORDER_EEPROM_SIZE); + eeprom.version = cpu_to_be16(TRICORDER_EEPROM_VERSION); + + length = min(sizeof(eeprom.board_name), strlen(name)); + strncpy(eeprom.board_name, name, length); + + length = min(sizeof(eeprom.board_version), strlen(version)); + strncpy(eeprom.board_version, version, length); + + length = min(sizeof(eeprom.board_serial), strlen(serial)); + strncpy(eeprom.board_serial, serial, length); + + if (interface) { + length = min(sizeof(eeprom.interface_version), + strlen(interface)); + strncpy(eeprom.interface_version, interface, length); + } + + crc = crc32(0L, (unsigned char *)&eeprom, TRICORDER_EEPROM_CRC_SIZE); + eeprom.crc32 = cpu_to_be32(crc); + +#if defined(DEBUG) + puts("Tricorder EEPROM content:\n"); + print_buffer(0, &eeprom, 1, sizeof(eeprom), 16); +#endif + +#ifdef CONFIG_SYS_EEPROM_BUS_NUM + bus = i2c_get_bus_num(); + i2c_set_bus_num(CONFIG_SYS_EEPROM_BUS_NUM); +#endif + + /* do page write to the eeprom */ + for (i = 0, p = (unsigned char *)&eeprom; + i < sizeof(eeprom); + i += 32, p += 32) { + ret = i2c_write(devaddr, i, CONFIG_SYS_I2C_EEPROM_ADDR_LEN, + p, min(sizeof(eeprom) - i, 32)); + if (ret) + break; + udelay(5000); /* 5ms write cycle timing */ + } + + ret = i2c_read(devaddr, 0, 2, (unsigned char *)&eeprom_verify, + TRICORDER_EEPROM_SIZE); + + if (memcmp(&eeprom, &eeprom_verify, sizeof(eeprom)) != 0) { + printf("Tricorder: Could not verify EEPROM content!\n"); + ret = 1; + } + +#ifdef CONFIG_SYS_EEPROM_BUS_NUM + i2c_set_bus_num(bus); +#endif + return ret; +} + +int do_tricorder_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + if (argc == 3) { + ulong dev_addr = simple_strtoul(argv[2], NULL, 16); + eeprom_init(); + if (strcmp(argv[1], "read") == 0) { + int rcode; + + rcode = tricorder_eeprom_read(dev_addr); + + return rcode; + } + } else if (argc == 6 || argc == 7) { + ulong dev_addr = simple_strtoul(argv[2], NULL, 16); + char *name = argv[3]; + char *version = argv[4]; + char *serial = argv[5]; + char *interface = NULL; + eeprom_init(); + + if (argc == 7) + interface = argv[6]; + + if (strcmp(argv[1], "write") == 0) { + int rcode; + + rcode = tricorder_eeprom_write(dev_addr, name, version, + serial, interface); + + return rcode; + } + } + + return CMD_RET_USAGE; +} + +U_BOOT_CMD( + tricordereeprom, 7, 1, do_tricorder_eeprom, + "Tricorder EEPROM", + "read devaddr\n" + " - read Tricorder EEPROM at devaddr and print content\n" + "tricordereeprom write devaddr name version serial [interface]\n" + " - write Tricorder EEPROM at devaddr with 'name', 'version'" + "and 'serial'\n" + " optional add an HW interface parameter" +); +#endif /* CONFIG_SPL */ diff --git a/board/corscience/tricorder/tricorder-eeprom.h b/board/corscience/tricorder/tricorder-eeprom.h new file mode 100644 index 0000000000..06ed9a5911 --- /dev/null +++ b/board/corscience/tricorder/tricorder-eeprom.h @@ -0,0 +1,41 @@ +/* + * (C) Copyright 2013 + * Corscience GmbH & Co. KG, <www.corscience.de> + * Andreas Bießmann <andreas.biessmann@corscience.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#ifndef TRICORDER_EEPROM_H_ +#define TRICORDER_EEPROM_H_ + +#include <linux/compiler.h> + +#define TRICORDER_EEPROM_MAGIC 0xc2a94f52 +#define TRICORDER_EEPROM_VERSION 1 + +#define TRICORDER_BOARD_NAME_LENGTH 12 +#define TRICORDER_BOARD_VERSION_LENGTH 4 +#define TRICORDER_BOARD_SERIAL_LENGTH 12 +#define TRICORDER_INTERFACE_VERSION_LENGTH 4 + +struct tricorder_eeprom { + uint32_t magic; + uint16_t length; + uint16_t version; + char board_name[TRICORDER_BOARD_NAME_LENGTH]; + char board_version[TRICORDER_BOARD_VERSION_LENGTH]; + char board_serial[TRICORDER_BOARD_SERIAL_LENGTH]; + char interface_version[TRICORDER_INTERFACE_VERSION_LENGTH]; + uint32_t crc32; +} __packed; + +#define TRICORDER_EEPROM_SIZE sizeof(struct tricorder_eeprom) +#define TRICORDER_EEPROM_CRC_SIZE (TRICORDER_EEPROM_SIZE - \ + sizeof(uint32_t)) + +/** + * @brief read eeprom information from a specific eeprom address + */ +int tricorder_get_eeprom(int addr, struct tricorder_eeprom *eeprom); + +#endif /* TRICORDER_EEPROM_H_ */ diff --git a/board/corscience/tricorder/tricorder.c b/board/corscience/tricorder/tricorder.c index c7099e5e3a..2dfcb271d3 100644 --- a/board/corscience/tricorder/tricorder.c +++ b/board/corscience/tricorder/tricorder.c @@ -13,11 +13,13 @@ #include <common.h> #include <twl4030.h> #include <asm/io.h> +#include <asm/gpio.h> #include <asm/arch/mmc_host_def.h> #include <asm/arch/mux.h> #include <asm/arch/sys_proto.h> #include <asm/arch/mem.h> #include "tricorder.h" +#include "tricorder-eeprom.h" DECLARE_GLOBAL_DATA_PTR; @@ -34,16 +36,91 @@ int board_init(void) return 0; } +/** + * get_eeprom - read the eeprom + * + * @eeprom - pointer to a eeprom struct to fill + * + * This function will panic() on wrong EEPROM content + */ +static void get_eeprom(struct tricorder_eeprom *eeprom) +{ + int ret; + + if (!eeprom) + panic("No eeprom given!\n"); + + ret = gpio_request(7, "BMS"); + if (ret) + panic("gpio: requesting BMS pin failed\n"); + + ret = gpio_direction_input(7); + if (ret) + panic("gpio: set BMS as input failed\n"); + + ret = gpio_get_value(7); + if (ret < 0) + panic("gpio: get BMS pin state failed\n"); + + gpio_free(7); + + if (ret == 0) { + /* BMS is _not_ set, do the EEPROM check */ + ret = tricorder_get_eeprom(0x51, eeprom); + if (!ret) { + if (strncmp(eeprom->board_name, "CS10411", 7) != 0) + panic("Wrong board name '%.*s'\n", + sizeof(eeprom->board_name), + eeprom->board_name); + if (eeprom->board_version[0] < 'D') + panic("Wrong board version '%.*s'\n", + sizeof(eeprom->board_version), + eeprom->board_version); + } else { + panic("Could not get board revision\n"); + } + } +} + +/** + * print_hwversion - print out a HW version string + * + * @eeprom - pointer to the eeprom + */ +static void print_hwversion(struct tricorder_eeprom *eeprom) +{ + size_t len; + if (!eeprom) + panic("No eeprom given!"); + + printf("Board %.*s:%.*s serial %.*s", + sizeof(eeprom->board_name), eeprom->board_name, + sizeof(eeprom->board_version), eeprom->board_version, + sizeof(eeprom->board_serial), eeprom->board_serial); + + len = strnlen(eeprom->interface_version, + sizeof(eeprom->interface_version)); + if (len > 0) + printf(" HW interface version %.*s", + sizeof(eeprom->interface_version), + eeprom->interface_version); + puts("\n"); +} + /* * Routine: misc_init_r * Description: Configure board specific parts */ int misc_init_r(void) { + struct tricorder_eeprom eeprom; + get_eeprom(&eeprom); + print_hwversion(&eeprom); + twl4030_power_init(); -#ifdef CONFIG_TWL4030_LED - twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); -#endif + status_led_set(0, STATUS_LED_ON); + status_led_set(1, STATUS_LED_ON); + status_led_set(2, STATUS_LED_ON); dieid_num_r(); @@ -77,12 +154,43 @@ int board_mmc_init(bd_t *bis) */ void get_board_mem_timings(struct board_sdrc_timings *timings) { + struct tricorder_eeprom eeprom; + get_eeprom(&eeprom); + /* General SDRC config */ - timings->mcfg = MICRON_V_MCFG_165(128 << 20); - timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; + if (eeprom.board_version[0] > 'D') { + /* use optimized timings for our SDRAM device */ + timings->mcfg = MCFG((256 << 20), 14); +#define MT46H64M32_TDAL 6 /* Twr/Tck + Trp/tck */ + /* 15/6 + 18/6 = 5.5 -> 6 */ +#define MT46H64M32_TDPL 3 /* 15/6 = 2.5 -> 3 (Twr) */ +#define MT46H64M32_TRRD 2 /* 12/6 = 2 */ +#define MT46H64M32_TRCD 3 /* 18/6 = 3 */ +#define MT46H64M32_TRP 3 /* 18/6 = 3 */ +#define MT46H64M32_TRAS 7 /* 42/6 = 7 */ +#define MT46H64M32_TRC 10 /* 60/6 = 10 */ +#define MT46H64M32_TRFC 12 /* 72/6 = 12 */ + timings->ctrla = ACTIM_CTRLA(MT46H64M32_TRFC, MT46H64M32_TRC, + MT46H64M32_TRAS, MT46H64M32_TRP, + MT46H64M32_TRCD, MT46H64M32_TRRD, + MT46H64M32_TDPL, + MT46H64M32_TDAL); + +#define MT46H64M32_TWTR 1 +#define MT46H64M32_TCKE 1 +#define MT46H64M32_XSR 19 /* 112.5/6 = 18.75 => ~19 */ +#define MT46H64M32_TXP 1 + timings->ctrlb = ACTIM_CTRLB(MT46H64M32_TWTR, MT46H64M32_TCKE, + MT46H64M32_TXP, MT46H64M32_XSR); - /* AC timings */ - timings->ctrla = MICRON_V_ACTIMA_165; - timings->ctrlb = MICRON_V_ACTIMB_165; - timings->mr = MICRON_V_MR_165; + timings->mr = MICRON_V_MR_165; + timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; + } else { + /* use conservative beagleboard timings as default */ + timings->mcfg = MICRON_V_MCFG_165(128 << 20); + timings->ctrla = MICRON_V_ACTIMA_165; + timings->ctrlb = MICRON_V_ACTIMB_165; + timings->mr = MICRON_V_MR_165; + timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; + } } diff --git a/board/corscience/tricorder/tricorder.h b/board/corscience/tricorder/tricorder.h index 820a50c9f7..67c35c56bc 100644 --- a/board/corscience/tricorder/tricorder.h +++ b/board/corscience/tricorder/tricorder.h @@ -75,8 +75,8 @@ const omap3_sysinfo sysinfo = { MUX_VAL(CP(GPMC_A6), (IDIS | PTD | DIS | M0)) /*GPMC_A6*/\ MUX_VAL(CP(GPMC_A7), (IDIS | PTD | DIS | M0)) /*GPMC_A7*/\ MUX_VAL(CP(GPMC_A8), (IDIS | PTD | DIS | M0)) /*GPMC_A8*/\ - MUX_VAL(CP(GPMC_A9), (IDIS | PTD | DIS | M0)) /*GPMC_A9*/\ - MUX_VAL(CP(GPMC_A10), (IDIS | PTD | DIS | M0)) /*GPMC_A10*/\ + MUX_VAL(CP(GPMC_A9), (IDIS | PTU | EN | M4)) /*GPIO 42*/\ + MUX_VAL(CP(GPMC_A10), (IDIS | PTU | EN | M4)) /*GPIO 43*/\ MUX_VAL(CP(GPMC_D0), (IEN | PTD | DIS | M0)) /*GPMC_D0*/\ MUX_VAL(CP(GPMC_D1), (IEN | PTD | DIS | M0)) /*GPMC_D1*/\ MUX_VAL(CP(GPMC_D2), (IEN | PTD | DIS | M0)) /*GPMC_D2*/\ |
