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authorIgor Grinberg <grinberg@compulab.co.il>2013-09-16 21:49:58 +0300
committerTom Rini <trini@ti.com>2013-11-01 15:55:59 -0400
commit689be5f83c17af6221764ab3a3890510af3c9022 (patch)
tree41415fe70d163fab056bc4a192eb1d80cea47c93 /board/compulab/cm_t35/eeprom.c
parent0178296588fe3004238c77d3dc0996d82b8c8ca1 (diff)
cm-t35: move the eeprom code to common place
Compulab boards use the same eeprom code, so move the eeprom related code to live under board/compulab/common directory. Also make several adjustments to eeprom functions namespace, so it will be generic for compulab boards. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Tested-by: Nikita Kiryanov <nikita@compulab.co.il>
Diffstat (limited to 'board/compulab/cm_t35/eeprom.c')
-rw-r--r--board/compulab/cm_t35/eeprom.c118
1 files changed, 0 insertions, 118 deletions
diff --git a/board/compulab/cm_t35/eeprom.c b/board/compulab/cm_t35/eeprom.c
deleted file mode 100644
index df91acd4a7c..00000000000
--- a/board/compulab/cm_t35/eeprom.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * (C) Copyright 2011 CompuLab, Ltd. <www.compulab.co.il>
- *
- * Authors: Nikita Kiryanov <nikita@compulab.co.il>
- * Igor Grinberg <grinberg@compulab.co.il>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <i2c.h>
-
-#define EEPROM_LAYOUT_VER_OFFSET 44
-#define BOARD_SERIAL_OFFSET 20
-#define BOARD_SERIAL_OFFSET_LEGACY 8
-#define BOARD_REV_OFFSET 0
-#define BOARD_REV_OFFSET_LEGACY 6
-#define BOARD_REV_SIZE 2
-#define MAC_ADDR_OFFSET 4
-#define MAC_ADDR_OFFSET_LEGACY 0
-
-#define LAYOUT_INVALID 0
-#define LAYOUT_LEGACY 0xff
-
-static int eeprom_layout; /* Implicitly LAYOUT_INVALID */
-
-static int cm_t3x_eeprom_read(uint offset, uchar *buf, int len)
-{
- return i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, offset,
- CONFIG_SYS_I2C_EEPROM_ADDR_LEN, buf, len);
-}
-
-static int eeprom_setup_layout(void)
-{
- int res;
-
- if (eeprom_layout != LAYOUT_INVALID)
- return 0;
-
- res = cm_t3x_eeprom_read(EEPROM_LAYOUT_VER_OFFSET,
- (uchar *)&eeprom_layout, 1);
- if (res) {
- eeprom_layout = LAYOUT_INVALID;
- return res;
- }
-
- if (eeprom_layout == 0 || eeprom_layout >= 0x20)
- eeprom_layout = LAYOUT_LEGACY;
-
- return 0;
-}
-
-void get_board_serial(struct tag_serialnr *serialnr)
-{
- u32 serial[2];
- uint offset;
-
- memset(serialnr, 0, sizeof(*serialnr));
- if (eeprom_setup_layout())
- return;
-
- offset = (eeprom_layout != LAYOUT_LEGACY) ?
- BOARD_SERIAL_OFFSET : BOARD_SERIAL_OFFSET_LEGACY;
- if (cm_t3x_eeprom_read(offset, (uchar *)serial, 8))
- return;
-
- if (serial[0] != 0xffffffff && serial[1] != 0xffffffff) {
- serialnr->low = serial[0];
- serialnr->high = serial[1];
- }
-}
-
-/*
- * Routine: cm_t3x_eeprom_read_mac_addr
- * Description: read mac address and store it in buf.
- */
-int cm_t3x_eeprom_read_mac_addr(uchar *buf)
-{
- uint offset;
-
- if (eeprom_setup_layout())
- return 0;
-
- offset = (eeprom_layout != LAYOUT_LEGACY) ?
- MAC_ADDR_OFFSET : MAC_ADDR_OFFSET_LEGACY;
- return cm_t3x_eeprom_read(offset, buf, 6);
-}
-
-/*
- * Routine: cm_t3x_eeprom_get_board_rev
- * Description: read system revision from eeprom
- */
-u32 cm_t3x_eeprom_get_board_rev(void)
-{
- u32 rev = 0;
- char str[5]; /* Legacy representation can contain at most 4 digits */
- uint offset = BOARD_REV_OFFSET_LEGACY;
-
- if (eeprom_setup_layout())
- return 0;
-
- if (eeprom_layout != LAYOUT_LEGACY)
- offset = BOARD_REV_OFFSET;
-
- if (cm_t3x_eeprom_read(offset, (uchar *)&rev, BOARD_REV_SIZE))
- return 0;
-
- /*
- * Convert legacy syntactic representation to semantic
- * representation. i.e. for rev 1.00: 0x100 --> 0x64
- */
- if (eeprom_layout == LAYOUT_LEGACY) {
- sprintf(str, "%x", rev);
- rev = simple_strtoul(str, NULL, 10);
- }
-
- return rev;
-};