From 8b5218e7cb9ff4223f2825c04e45dabccbd15a48 Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Fri, 17 Jun 2022 13:26:10 -0500 Subject: [PATCH] board: ti: common: Optimize boot when detecting consecutive bad records The eeprom data area is much bigger than the data we intend to store, however, with bad programming, we might end up reading bad records over and over till we run out of eeprom space. instead just exit when 10 consecutive records are read. Signed-off-by: Nishanth Menon Reviewed-by: Tom Rini --- board/ti/common/board_detect.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/board/ti/common/board_detect.c b/board/ti/common/board_detect.c index de92eb0981..381cddc00a 100644 --- a/board/ti/common/board_detect.c +++ b/board/ti/common/board_detect.c @@ -434,6 +434,7 @@ int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr, struct ti_am6_eeprom_record_board_id board_id; struct ti_am6_eeprom_record record; int rc; + int consecutive_bad_records = 0; /* Initialize with a known bad marker for i2c fails.. */ memset(ep, 0, sizeof(*ep)); @@ -470,7 +471,7 @@ int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr, */ eeprom_addr = sizeof(board_id); - while (true) { + while (consecutive_bad_records < 10) { rc = dm_i2c_read(dev, eeprom_addr, (uint8_t *)&record.header, sizeof(record.header)); if (rc) @@ -506,6 +507,7 @@ int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr, pr_err("%s: EEPROM parsing error!\n", __func__); return rc; } + consecutive_bad_records = 0; } else { /* * We may get here in case of larger records which @@ -513,6 +515,7 @@ int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr, */ pr_err("%s: Ignoring record id %u\n", __func__, record.header.id); + consecutive_bad_records++; } eeprom_addr += record.header.len; -- 2.39.5