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101 lines
2.8 KiB
101 lines
2.8 KiB
From f3b3faafe7b5a1c07b12d18e96c36bc8a0eecaed Mon Sep 17 00:00:00 2001
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From: Florian Fainelli <florian@openwrt.org>
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Date: Tue, 18 Jun 2013 16:55:41 +0000
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Subject: [PATCH 3/6] MIPS: BCM63XX: recognize Cable Modem firmware format
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Add the firmware header format which is used by Broadcom Cable Modem
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SoCs such as the BCM3368 SoC. We export the bcm_hcs firmware format
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structure because it is used by user-land tools to create firmware
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images for these SoCs and will later be used by a corresponding MTD
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parser.
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Signed-off-by: Florian Fainelli <florian@openwrt.org>
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Cc: linux-mips@linux-mips.org
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Cc: cernekee@gmail.com
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Cc: jogo@openwrt.org
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Patchwork: https://patchwork.linux-mips.org/patch/5496/
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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---
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arch/mips/bcm63xx/boards/board_bcm963xx.c | 14 ++++++++++++--
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include/uapi/linux/Kbuild | 1 +
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include/uapi/linux/bcm933xx_hcs.h | 24 ++++++++++++++++++++++++
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3 files changed, 37 insertions(+), 2 deletions(-)
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create mode 100644 include/uapi/linux/bcm933xx_hcs.h
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--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
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+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
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@@ -28,8 +28,12 @@
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#include <bcm63xx_dev_usb_usbd.h>
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#include <board_bcm963xx.h>
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+#include <uapi/linux/bcm933xx_hcs.h>
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+
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#define PFX "board_bcm963xx: "
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+#define HCS_OFFSET_128K 0x20000
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+
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static struct board_info board;
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/*
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@@ -722,8 +726,9 @@ void __init board_prom_init(void)
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unsigned int i;
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u8 *boot_addr, *cfe;
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char cfe_version[32];
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- char *board_name;
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+ char *board_name = NULL;
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u32 val;
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+ struct bcm_hcs *hcs;
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/* read base address of boot chip select (0)
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* 6328/6362 do not have MPI but boot from a fixed address
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@@ -747,7 +752,12 @@ void __init board_prom_init(void)
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bcm63xx_nvram_init(boot_addr + BCM963XX_NVRAM_OFFSET);
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- board_name = bcm63xx_nvram_get_name();
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+ if (BCMCPU_IS_3368()) {
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+ hcs = (struct bcm_hcs *)boot_addr;
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+ board_name = hcs->filename;
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+ } else {
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+ board_name = bcm63xx_nvram_get_name();
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+ }
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/* find board by name */
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for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
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if (strncmp(board_name, bcm963xx_boards[i]->name, 16))
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--- a/include/uapi/linux/Kbuild
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+++ b/include/uapi/linux/Kbuild
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@@ -62,6 +62,7 @@ header-y += auxvec.h
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header-y += ax25.h
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header-y += b1lli.h
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header-y += baycom.h
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+header-y += bcm933xx_hcs.h
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header-y += bfs_fs.h
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header-y += binfmts.h
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header-y += blkpg.h
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--- /dev/null
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+++ b/include/uapi/linux/bcm933xx_hcs.h
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@@ -0,0 +1,24 @@
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+/*
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+ * Broadcom Cable Modem firmware format
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+ */
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+
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+#ifndef __BCM933XX_HCS_H
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+#define __BCM933XX_HCS_H
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+
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+#include <linux/types.h>
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+
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+struct bcm_hcs {
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+ __u16 magic;
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+ __u16 control;
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+ __u16 rev_maj;
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+ __u16 rev_min;
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+ __u32 build_date;
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+ __u32 filelen;
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+ __u32 ldaddress;
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+ char filename[64];
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+ __u16 hcs;
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+ __u16 her_znaet_chto;
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+ __u32 crc;
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+};
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+
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+#endif /* __BCM933XX_HCS */
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