From 7b5d6043de31290de98e9232cbd9a07968aef5bd Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Tue, 18 Jun 2013 07:33:40 +0200 Subject: [PATCH] ssb: register serial flash as platform device MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This allows writing MTD driver working as a platform driver. In platform_data it will receive struct ssb_sflash, which contains all important data about flash (window, size). Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville --- drivers/ssb/driver_chipcommon_sflash.c | 19 +++++++++++++++++++ drivers/ssb/main.c | 8 ++++++++ drivers/ssb/ssb_private.h | 4 ++++ 3 files changed, 31 insertions(+) diff --git a/drivers/ssb/driver_chipcommon_sflash.c b/drivers/ssb/driver_chipcommon_sflash.c index 205f1c499c46..e84cf04f4416 100644 --- a/drivers/ssb/driver_chipcommon_sflash.c +++ b/drivers/ssb/driver_chipcommon_sflash.c @@ -9,6 +9,19 @@ #include "ssb_private.h" +static struct resource ssb_sflash_resource = { + .name = "ssb_sflash", + .start = SSB_FLASH2, + .end = 0, + .flags = IORESOURCE_MEM | IORESOURCE_READONLY, +}; + +struct platform_device ssb_sflash_dev = { + .name = "ssb_sflash", + .resource = &ssb_sflash_resource, + .num_resources = 1, +}; + struct ssb_sflash_tbl_e { char *name; u32 id; @@ -141,6 +154,12 @@ int ssb_sflash_init(struct ssb_chipcommon *cc) pr_info("Found %s serial flash (blocksize: 0x%X, blocks: %d)\n", e->name, e->blocksize, e->numblocks); + /* Prepare platform device, but don't register it yet. It's too early, + * malloc (required by device_private_init) is not available yet. */ + ssb_sflash_dev.resource[0].end = ssb_sflash_dev.resource[0].start + + sflash->size; + ssb_sflash_dev.dev.platform_data = sflash; + pr_err("Serial flash support is not implemented yet!\n"); return -ENOTSUPP; diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index 812775a4bfb6..e55ddf7cd7c2 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -553,6 +553,14 @@ static int ssb_devices_register(struct ssb_bus *bus) } #endif +#ifdef CONFIG_SSB_SFLASH + if (bus->mipscore.sflash.present) { + err = platform_device_register(&ssb_sflash_dev); + if (err) + pr_err("Error registering serial flash\n"); + } +#endif + return 0; error: /* Unwind the already registered devices. */ diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h index 4671f17f09af..eb507a50a564 100644 --- a/drivers/ssb/ssb_private.h +++ b/drivers/ssb/ssb_private.h @@ -243,6 +243,10 @@ static inline int ssb_sflash_init(struct ssb_chipcommon *cc) extern struct platform_device ssb_pflash_dev; #endif +#ifdef CONFIG_SSB_SFLASH +extern struct platform_device ssb_sflash_dev; +#endif + #ifdef CONFIG_SSB_DRIVER_EXTIF extern u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks); extern u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms); -- 2.34.1