diff options
author | Nishanth Menon <nm@ti.com> | 2016-02-24 18:30:56 (GMT) |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2016-03-14 23:18:34 (GMT) |
commit | 5f8bb93b23199b7592c183123d971ef761999e63 (patch) | |
tree | 890fd802f496a66d337c1ba929d5dd103cc2e6d6 /board/ti/am43xx | |
parent | 770e68c0a37fded897d4bdda661614fc81cb33d2 (diff) | |
download | u-boot-5f8bb93b23199b7592c183123d971ef761999e63.tar.xz |
ti: AM437x: Use generic EEPROM detection logic
Now that we have a generic TI eeprom logic which can be reused across
platforms, reuse the same.
This revision also includes fixes identified by Dave Gerlach
<d-gerlach@ti.com>
Cc: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Steven Kipisz <s-kipisz2@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'board/ti/am43xx')
-rw-r--r-- | board/ti/am43xx/Kconfig | 2 | ||||
-rw-r--r-- | board/ti/am43xx/board.c | 87 | ||||
-rw-r--r-- | board/ti/am43xx/board.h | 37 | ||||
-rw-r--r-- | board/ti/am43xx/mux.c | 1 |
4 files changed, 38 insertions, 89 deletions
diff --git a/board/ti/am43xx/Kconfig b/board/ti/am43xx/Kconfig index 8d1c168..9cb80cc 100644 --- a/board/ti/am43xx/Kconfig +++ b/board/ti/am43xx/Kconfig @@ -12,4 +12,6 @@ config SYS_SOC config SYS_CONFIG_NAME default "am43xx_evm" +source "board/ti/common/Kconfig" + endif diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c index 770726c..d208d2f 100644 --- a/board/ti/am43xx/board.c +++ b/board/ti/am43xx/board.c @@ -19,6 +19,7 @@ #include <asm/arch/ddr_defs.h> #include <asm/arch/gpio.h> #include <asm/emif.h> +#include "../common/board_detect.h" #include "board.h" #include <power/pmic.h> #include <power/tps65218.h> @@ -37,48 +38,9 @@ static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; /* * Read header information from EEPROM into global structure. */ -static int read_eeprom(struct am43xx_board_id *header) +static inline int __maybe_unused read_eeprom(void) { - /* Check if baseboard eeprom is available */ - if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) { - printf("Could not probe the EEPROM at 0x%x\n", - CONFIG_SYS_I2C_EEPROM_ADDR); - return -ENODEV; - } - - /* read the eeprom using i2c */ - if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header, - sizeof(struct am43xx_board_id))) { - printf("Could not read the EEPROM\n"); - return -EIO; - } - - if (header->magic != 0xEE3355AA) { - /* - * read the eeprom using i2c again, - * but use only a 1 byte address - */ - if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header, - sizeof(struct am43xx_board_id))) { - printf("Could not read the EEPROM at 0x%x\n", - CONFIG_SYS_I2C_EEPROM_ADDR); - return -EIO; - } - - if (header->magic != 0xEE3355AA) { - printf("Incorrect magic number (0x%x) in EEPROM\n", - header->magic); - return -EINVAL; - } - } - - strncpy(am43xx_board_name, (char *)header->name, sizeof(header->name)); - am43xx_board_name[sizeof(header->name)] = 0; - - strncpy(am43xx_board_rev, (char *)header->version, sizeof(header->version)); - am43xx_board_rev[sizeof(header->version)] = 0; - - return 0; + return ti_i2c_eeprom_am_get(-1, CONFIG_SYS_I2C_EEPROM_ADDR); } #ifndef CONFIG_SKIP_LOWLEVEL_INIT @@ -374,6 +336,9 @@ const struct dpll_params *get_dpll_ddr_params(void) { int ind = get_sys_clk_index(); + if (read_eeprom() < 0) + return NULL; + if (board_is_eposevm()) return &epos_evm_dpll_ddr[ind]; else if (board_is_gpevm() || board_is_sk()) @@ -381,7 +346,7 @@ const struct dpll_params *get_dpll_ddr_params(void) else if (board_is_idk()) return &idk_dpll_ddr; - printf(" Board '%s' not supported\n", am43xx_board_name); + printf(" Board '%s' not supported\n", board_ti_get_name()); return NULL; } @@ -512,16 +477,29 @@ void scale_vcores_idk(u32 m) } } +void gpi2c_init(void) +{ + /* When needed to be invoked prior to BSS initialization */ + static bool first_time = true; + + if (first_time) { + enable_i2c0_pin_mux(); + i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, + CONFIG_SYS_OMAP24_I2C_SLAVE); + first_time = false; + } +} + void scale_vcores(void) { const struct dpll_params *mpu_params; - struct am43xx_board_id header; - enable_i2c0_pin_mux(); - i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE); - if (read_eeprom(&header) < 0) + if (read_eeprom() < 0) puts("Could not get board ID.\n"); + /* Ensure I2C is initialized for PMIC configuration */ + gpi2c_init(); + /* Get the frequency */ mpu_params = get_dpll_mpu_params(); @@ -558,6 +536,8 @@ static void enable_vtt_regulator(void) void sdram_init(void) { + if (read_eeprom() < 0) + return; /* * EPOS EVM has 1GB LPDDR2 connected to EMIF. * GP EMV has 1GB DDR3 connected to EMIF @@ -655,20 +635,7 @@ int board_init(void) int board_late_init(void) { #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG - char safe_string[HDR_NAME_LEN + 1]; - struct am43xx_board_id header; - - if (read_eeprom(&header) < 0) - puts("Could not get board ID.\n"); - - /* Now set variables based on the header. */ - strncpy(safe_string, (char *)header.name, sizeof(header.name)); - safe_string[sizeof(header.name)] = 0; - setenv("board_name", safe_string); - - strncpy(safe_string, (char *)header.version, sizeof(header.version)); - safe_string[sizeof(header.version)] = 0; - setenv("board_rev", safe_string); + set_board_info_env(NULL); #endif return 0; } diff --git a/board/ti/am43xx/board.h b/board/ti/am43xx/board.h index eb9493e..2cf7a77 100644 --- a/board/ti/am43xx/board.h +++ b/board/ti/am43xx/board.h @@ -14,58 +14,37 @@ #include <asm/arch/omap.h> -static char *const am43xx_board_name = (char *)AM4372_BOARD_NAME_START; -static char *const am43xx_board_rev = (char *)AM4372_BOARD_VERSION_START; - -/* - * TI AM437x EVMs define a system EEPROM that defines certain sub-fields. - * We use these fields to in turn see what board we are on, and what - * that might require us to set or not set. - */ -#define HDR_NO_OF_MAC_ADDR 3 -#define HDR_ETH_ALEN 6 -#define HDR_NAME_LEN 8 - -#define DEV_ATTR_MAX_OFFSET 5 -#define DEV_ATTR_MIN_OFFSET 0 - -struct am43xx_board_id { - unsigned int magic; - char name[HDR_NAME_LEN]; - char version[4]; - char serial[12]; - char config[32]; - char mac_addr[HDR_NO_OF_MAC_ADDR][HDR_ETH_ALEN]; -}; +#define DEV_ATTR_MAX_OFFSET 5 +#define DEV_ATTR_MIN_OFFSET 0 static inline int board_is_eposevm(void) { - return !strncmp(am43xx_board_name, "AM43EPOS", HDR_NAME_LEN); + return board_ti_is("AM43EPOS"); } static inline int board_is_gpevm(void) { - return !strncmp(am43xx_board_name, "AM43__GP", HDR_NAME_LEN); + return board_ti_is("AM43__GP"); } static inline int board_is_sk(void) { - return !strncmp(am43xx_board_name, "AM43__SK", HDR_NAME_LEN); + return board_ti_is("AM43__SK"); } static inline int board_is_idk(void) { - return !strncmp(am43xx_board_name, "AM43_IDK", HDR_NAME_LEN); + return board_ti_is("AM43_IDK"); } static inline int board_is_evm_14_or_later(void) { - return (board_is_gpevm() && strncmp("1.4", am43xx_board_rev, 3) <= 0); + return (board_is_gpevm() && strncmp("1.4", board_ti_get_rev(), 3) <= 0); } static inline int board_is_evm_12_or_later(void) { - return (board_is_gpevm() && strncmp("1.2", am43xx_board_rev, 3) <= 0); + return (board_is_gpevm() && strncmp("1.2", board_ti_get_rev(), 3) <= 0); } void enable_uart0_pin_mux(void); diff --git a/board/ti/am43xx/mux.c b/board/ti/am43xx/mux.c index 510477d..e03b1bc 100644 --- a/board/ti/am43xx/mux.c +++ b/board/ti/am43xx/mux.c @@ -9,6 +9,7 @@ #include <common.h> #include <asm/arch/sys_proto.h> #include <asm/arch/mux.h> +#include "../common/board_detect.h" #include "board.h" static struct module_pin_mux rmii1_pin_mux[] = { |