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74 lines
2.1 KiB
Diff
74 lines
2.1 KiB
Diff
From 597715c61ae75a05ab3310a34ff3857a006f0f63 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Thu, 20 Nov 2014 21:32:42 +0100
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Subject: [PATCH] bcma: add table of serial flashes with smaller blocks
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/bcma/driver_chipcommon_sflash.c | 29 +++++++++++++++++++++++++++++
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1 file changed, 29 insertions(+)
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--- a/drivers/bcma/driver_chipcommon_sflash.c
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+++ b/drivers/bcma/driver_chipcommon_sflash.c
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@@ -9,6 +9,7 @@
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#include <linux/platform_device.h>
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#include <linux/bcma/bcma.h>
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+#include <bcm47xx_board.h>
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static struct resource bcma_sflash_resource = {
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.name = "bcma_sflash",
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@@ -42,6 +43,13 @@ static const struct bcma_sflash_tbl_e bc
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{ NULL },
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};
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+/* Some devices use smaller blocks (and have more of them) */
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+static const struct bcma_sflash_tbl_e bcma_sflash_st_shrink_tbl[] = {
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+ { "M25P16", 0x14, 0x1000, 512, },
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+ { "M25P32", 0x15, 0x1000, 1024, },
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+ { NULL },
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+};
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+
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static const struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
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{ "SST25WF512", 1, 0x1000, 16, },
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{ "SST25VF512", 0x48, 0x1000, 16, },
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@@ -85,6 +93,24 @@ static void bcma_sflash_cmd(struct bcma_
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bcma_err(cc->core->bus, "SFLASH control command failed (timeout)!\n");
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}
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+const struct bcma_sflash_tbl_e *bcma_sflash_shrink_flash(u32 id)
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+{
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+ enum bcm47xx_board board = bcm47xx_board_get();
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+ const struct bcma_sflash_tbl_e *e;
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+
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+ switch (board) {
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+ case BCM47XX_BOARD_NETGEAR_WGR614_V10:
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+ case BCM47XX_BOARD_NETGEAR_WNR1000_V3:
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+ for (e = bcma_sflash_st_shrink_tbl; e->name; e++) {
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+ if (e->id == id)
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+ return e;
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+ }
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+ return NULL;
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+ default:
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+ return NULL;
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+ }
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+}
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+
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/* Initialize serial flash access */
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int bcma_sflash_init(struct bcma_drv_cc *cc)
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{
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@@ -115,6 +141,10 @@ int bcma_sflash_init(struct bcma_drv_cc
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case 0x13:
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return -ENOTSUPP;
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default:
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+ e = bcma_sflash_shrink_flash(id);
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+ if (e)
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+ break;
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+
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for (e = bcma_sflash_st_tbl; e->name; e++) {
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if (e->id == id)
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break;
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