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From 25bf2b5836c892f091651d8a3384c9c57ce1b400 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Thu, 26 Jun 2014 12:51:00 +0200
Subject: [PATCH 46/48] MIPS: BCM63XX: add support for matching the board_info
by dtb
Allow using the passed dtb's compatible property to match board_info
structs instead of nvram's boardname field, which is not unique anyway.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
arch/mips/bcm63xx/boards/board_bcm963xx.c | 15 +++++++++++++++
arch/mips/bcm63xx/boards/board_common.c | 18 ++++++++++++++++++
arch/mips/bcm63xx/boards/board_common.h | 3 +++
3 files changed, 36 insertions(+)
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -715,6 +715,10 @@ static const struct board_info __initcon
#endif
};
+static struct of_device_id const bcm963xx_boards_dt[] = {
+ { },
+};
+
/*
* early init callback, read nvram data from flash and checksum it
*/
@@ -726,6 +730,7 @@ void __init board_bcm963xx_init(void)
char *board_name = NULL;
u32 val;
struct bcm_hcs *hcs;
+ const struct of_device_id *board_match;
/* read base address of boot chip select (0)
* 6328/6362 do not have MPI but boot from a fixed address
@@ -765,6 +770,16 @@ void __init board_bcm963xx_init(void)
} else {
board_name = bcm63xx_nvram_get_name();
}
+
+ /* find board by compat */
+ board_match = bcm63xx_match_board(bcm963xx_boards_dt);
+ if (board_match) {
+ board_early_setup(board_match->data,
+ bcm63xx_nvram_get_mac_address);
+
+ return;
+ }
+
/* find board by name */
for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
if (strncmp(board_name, bcm963xx_boards[i]->name, 16))
--- a/arch/mips/bcm63xx/boards/board_common.c
+++ b/arch/mips/bcm63xx/boards/board_common.c
@@ -281,3 +281,21 @@ int __init board_register_devices(void)
return 0;
}
+
+const struct of_device_id * __init bcm63xx_match_board(const struct of_device_id *m)
+{
+ const struct of_device_id *match;
+ unsigned long dt_root;
+
+ if (!IS_ENABLED(CONFIG_OF) || !initial_boot_params)
+ return NULL;
+
+ dt_root = of_get_flat_dt_root();
+
+ for (match = m; match->compatible[0]; match++) {
+ if (of_flat_dt_is_compatible(dt_root, match->compatible))
+ return match;
+ }
+
+ return NULL;
+}
--- a/arch/mips/bcm63xx/boards/board_common.h
+++ b/arch/mips/bcm63xx/boards/board_common.h
@@ -1,11 +1,14 @@
#ifndef __BOARD_COMMON_H
#define __BOARD_COMMON_H
+#include <linux/of.h>
#include <board_bcm963xx.h>
void board_early_setup(const struct board_info *board,
int (*get_mac_address)(u8 mac[ETH_ALEN]));
+const struct of_device_id *bcm63xx_match_board(const struct of_device_id *);
+
#if defined(CONFIG_BOARD_BCM963XX)
void board_bcm963xx_init(void);
#else
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