From 642c28ab86f7666d2ac62a0dc391b4c3121f1d6e Mon Sep 17 00:00:00 2001 From: David Jander Date: Tue, 23 Jun 2015 11:43:52 +0200 Subject: mmc: core: Optimize case for exactly one erase-group budget In the (not so unlikely) case that the mmc controller timeout budget is enough for exactly one erase-group, the simplification of allowing one sector has an enormous performance penalty. We optimize this special case by introducing a flag that prohibits erase-group boundary crossing, so that we can allow trimming more than one sector at a time. Signed-off-by: David Jander Signed-off-by: Ulf Hansson --- include/linux/mmc/card.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 4d3776d25925..8fcbcd13218f 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -283,6 +283,7 @@ struct mmc_card { unsigned int erase_size; /* erase size in sectors */ unsigned int erase_shift; /* if erase unit is power 2 */ unsigned int pref_erase; /* in sectors */ + unsigned int eg_boundary; /* don't cross erase-group boundaries */ u8 erased_byte; /* value of erased bytes */ u32 raw_cid[4]; /* raw card CID */ -- cgit v1.2.3-71-gd317 From f13e5b9f3c625916d7658ba526574a5d24e4d664 Mon Sep 17 00:00:00 2001 From: Yangbo Lu Date: Fri, 10 Jul 2015 11:36:45 +0800 Subject: mmc: sdio: avoid using NULL sdio_irq_thread pointer For Freescale QorIQ LS1021AQDS board, there is a SDIO interrupt in the process of resume without inserting SD adapter because of some unknown issue. But the driver doesn't assign sdio_irq_thread pointer. This will block the resume of kernel. This patch is used to avoid using NULL sdio_irq_thread pointer. Signed-off-by: Yangbo Lu Signed-off-by: Ulf Hansson --- include/linux/mmc/host.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 1369e54faeb7..83b81fd865f3 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -412,7 +412,8 @@ static inline void mmc_signal_sdio_irq(struct mmc_host *host) { host->ops->enable_sdio_irq(host, 0); host->sdio_irq_pending = true; - wake_up_process(host->sdio_irq_thread); + if (host->sdio_irq_thread) + wake_up_process(host->sdio_irq_thread); } void sdio_run_irqs(struct mmc_host *host); -- cgit v1.2.3-71-gd317 From 575c319dfe872fc8bf1d57b244fb40f497ab3a47 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Mon, 3 Aug 2015 17:04:10 +0200 Subject: mmc: dw_mmc: fix pio mode when internal dmac is enabled The dw_mci_init_dma() may decide to not use dma, but pio instead, caused by things like wrong dma settings in the system. Till now the code dw_mci_init_slot() always assumed that dma is available when CONFIG_MMC_DW_IDMAC was defined, ignoring the host->use_dma var set during dma init. So when now the dma init failed for whatever reason, the transfer sizes would still be set for dma transfers, especially including the maximum block-count calculated from host->ring_size and resulting in a [ 4.991109] ------------[ cut here ]------------ [ 4.991111] kernel BUG at drivers/mmc/core/core.c:256! [ 4.991113] Internal error: Oops - BUG: 0 [#1] SMP ARM because host->ring_size is 0 in this case and the slot init code uses the wrong code to calculate the values. Fix this by selecting the correct calculations using the host->use_dma variable instead of the CONFIG_MMC_DW_IDMAC config option. Signed-off-by: Heiko Stuebner Signed-off-by: Jaehoon Chung --- drivers/mmc/host/dw_mmc.c | 27 ++++++++++++++------------- include/linux/mmc/dw_mmc.h | 4 ---- 2 files changed, 14 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 3f070d9f4086..3c0e1993e737 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2444,19 +2444,20 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) mmc->max_seg_size = host->pdata->blk_settings->max_seg_size; } else { /* Useful defaults if platform data is unset. */ -#ifdef CONFIG_MMC_DW_IDMAC - mmc->max_segs = host->ring_size; - mmc->max_blk_size = 65536; - mmc->max_seg_size = DW_MCI_DESC_DATA_LENGTH; - mmc->max_req_size = mmc->max_seg_size * host->ring_size; - mmc->max_blk_count = mmc->max_req_size / 512; -#else - mmc->max_segs = 64; - mmc->max_blk_size = 65536; /* BLKSIZ is 16 bits */ - mmc->max_blk_count = 512; - mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count; - mmc->max_seg_size = mmc->max_req_size; -#endif /* CONFIG_MMC_DW_IDMAC */ + if (host->use_dma) { + mmc->max_segs = host->ring_size; + mmc->max_blk_size = 65536; + mmc->max_seg_size = 0x1000; + mmc->max_req_size = mmc->max_seg_size * host->ring_size; + mmc->max_blk_count = mmc->max_req_size / 512; + } else { + mmc->max_segs = 64; + mmc->max_blk_size = 65536; /* BLKSIZ is 16 bits */ + mmc->max_blk_count = 512; + mmc->max_req_size = mmc->max_blk_size * + mmc->max_blk_count; + mmc->max_seg_size = mmc->max_req_size; + } } if (dw_mci_get_cd(mmc)) diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h index 5be97676f1fa..1d88bf72c65f 100644 --- a/include/linux/mmc/dw_mmc.h +++ b/include/linux/mmc/dw_mmc.h @@ -153,11 +153,7 @@ struct dw_mci { dma_addr_t sg_dma; void *sg_cpu; const struct dw_mci_dma_ops *dma_ops; -#ifdef CONFIG_MMC_DW_IDMAC unsigned int ring_size; -#else - struct dw_mci_dma_data *dma_data; -#endif u32 cmd_status; u32 data_status; u32 stop_cmdr; -- cgit v1.2.3-71-gd317 From 2b708df2b3edf6e91a4c8d89e7aedb0f861d0e41 Mon Sep 17 00:00:00 2001 From: Jaehoon Chung Date: Thu, 6 Aug 2015 16:23:25 +0900 Subject: mmc: dw_mmc: remove the unused blk_setting "blk_setting" doesn't use anywhere. Signed-off-by: Jaehoon Chung --- drivers/mmc/host/dw_mmc.c | 34 +++++++++++++--------------------- include/linux/mmc/dw_mmc.h | 1 - 2 files changed, 13 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index de88e640097e..091df65f7813 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2436,28 +2436,20 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) if (ret) goto err_host_allocated; - if (host->pdata->blk_settings) { - mmc->max_segs = host->pdata->blk_settings->max_segs; - mmc->max_blk_size = host->pdata->blk_settings->max_blk_size; - mmc->max_blk_count = host->pdata->blk_settings->max_blk_count; - mmc->max_req_size = host->pdata->blk_settings->max_req_size; - mmc->max_seg_size = host->pdata->blk_settings->max_seg_size; + /* Useful defaults if platform data is unset. */ + if (host->use_dma) { + mmc->max_segs = host->ring_size; + mmc->max_blk_size = 65536; + mmc->max_seg_size = 0x1000; + mmc->max_req_size = mmc->max_seg_size * host->ring_size; + mmc->max_blk_count = mmc->max_req_size / 512; } else { - /* Useful defaults if platform data is unset. */ - if (host->use_dma) { - mmc->max_segs = host->ring_size; - mmc->max_blk_size = 65536; - mmc->max_seg_size = 0x1000; - mmc->max_req_size = mmc->max_seg_size * host->ring_size; - mmc->max_blk_count = mmc->max_req_size / 512; - } else { - mmc->max_segs = 64; - mmc->max_blk_size = 65536; /* BLKSIZ is 16 bits */ - mmc->max_blk_count = 512; - mmc->max_req_size = mmc->max_blk_size * - mmc->max_blk_count; - mmc->max_seg_size = mmc->max_req_size; - } + mmc->max_segs = 64; + mmc->max_blk_size = 65536; /* BLKSIZ is 16 bits */ + mmc->max_blk_count = 512; + mmc->max_req_size = mmc->max_blk_size * + mmc->max_blk_count; + mmc->max_seg_size = mmc->max_req_size; } if (dw_mci_get_cd(mmc)) diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h index 1d88bf72c65f..b14fcb5012f1 100644 --- a/include/linux/mmc/dw_mmc.h +++ b/include/linux/mmc/dw_mmc.h @@ -255,7 +255,6 @@ struct dw_mci_board { struct dw_mci_dma_ops *dma_ops; struct dma_pdata *data; - struct block_settings *blk_settings; }; #endif /* LINUX_MMC_DW_MMC_H */ -- cgit v1.2.3-71-gd317 From 57e104864bc4874a36796fd222d8d084dbf90b9b Mon Sep 17 00:00:00 2001 From: Addy Ke Date: Tue, 11 Aug 2015 01:27:18 +0900 Subject: mmc: dw_mmc: add quirk for broken data transfer over scheme This patch add a new quirk to add a s/w timer to notify the driver to terminate current transfer and report a data timeout to the core, if DTO interrupt does NOT come within the given time. dw_mmc call mmc_request_done func to finish transfer depends on DTO interrupt. If DTO interrupt does not come in sending data state, the current transfer will be blocked. We got the reply from synopsys: There are two counters but both use the same value of [31:8] bits. Data timeout counter doesn't wait for stop clock and you should get DRTO even when the clock is not stopped. Host Starvation timeout counter is triggered with stop clock condition. This means that host should get DRTO and DTO interrupt. But this case really exists, when driver reads tuning data from card on RK3288-pink2 board. I measured waveforms by oscilloscope and found that card clock was always on and data lines were always holded high level in sending data state. There are two possibility that data over interrupt doesn't come in reading data state on RK3X SoCs: - get command done interrupt, but doesn't get any data-related interrupt. - get data error interrupt, but doesn't get data over interrupt. Signed-off-by: Addy Ke Signed-off-by: Heiko Stuebner Signed-off-by: Jaehoon Chung --- drivers/mmc/host/dw_mmc-rockchip.c | 3 ++ drivers/mmc/host/dw_mmc.c | 64 ++++++++++++++++++++++++++++++++++++-- include/linux/mmc/dw_mmc.h | 4 +++ 3 files changed, 69 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c index de15121bba7d..bc76aa22473e 100644 --- a/drivers/mmc/host/dw_mmc-rockchip.c +++ b/drivers/mmc/host/dw_mmc-rockchip.c @@ -73,6 +73,9 @@ static int dw_mci_rockchip_init(struct dw_mci *host) /* It is slot 8 on Rockchip SoCs */ host->sdio_id0 = 8; + /* It needs this quirk on all Rockchip SoCs */ + host->pdata->quirks |= DW_MCI_QUIRK_BROKEN_DTO; + return 0; } diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index f8ac14a14693..fcbf5524fd31 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -1574,6 +1574,20 @@ static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data) return data->error; } +static void dw_mci_set_drto(struct dw_mci *host) +{ + unsigned int drto_clks; + unsigned int drto_ms; + + drto_clks = mci_readl(host, TMOUT) >> 8; + drto_ms = DIV_ROUND_UP(drto_clks, host->bus_hz / 1000); + + /* add a bit spare time */ + drto_ms += 10; + + mod_timer(&host->dto_timer, jiffies + msecs_to_jiffies(drto_ms)); +} + static void dw_mci_tasklet_func(unsigned long priv) { struct dw_mci *host = (struct dw_mci *)priv; @@ -1651,8 +1665,16 @@ static void dw_mci_tasklet_func(unsigned long priv) } if (!test_and_clear_bit(EVENT_XFER_COMPLETE, - &host->pending_events)) + &host->pending_events)) { + /* + * If all data-related interrupts don't come + * within the given time in reading data state. + */ + if ((host->quirks & DW_MCI_QUIRK_BROKEN_DTO) && + (host->dir_status == DW_MCI_RECV_STATUS)) + dw_mci_set_drto(host); break; + } set_bit(EVENT_XFER_COMPLETE, &host->completed_events); @@ -1685,8 +1707,17 @@ static void dw_mci_tasklet_func(unsigned long priv) case STATE_DATA_BUSY: if (!test_and_clear_bit(EVENT_DATA_COMPLETE, - &host->pending_events)) + &host->pending_events)) { + /* + * If data error interrupt comes but data over + * interrupt doesn't come within the given time. + * in reading data state. + */ + if ((host->quirks & DW_MCI_QUIRK_BROKEN_DTO) && + (host->dir_status == DW_MCI_RECV_STATUS)) + dw_mci_set_drto(host); break; + } host->data = NULL; set_bit(EVENT_DATA_COMPLETE, &host->completed_events); @@ -2259,6 +2290,9 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id) } if (pending & SDMMC_INT_DATA_OVER) { + if (host->quirks & DW_MCI_QUIRK_BROKEN_DTO) + del_timer(&host->dto_timer); + mci_writel(host, RINTSTS, SDMMC_INT_DATA_OVER); if (!host->data_status) host->data_status = pending; @@ -2644,6 +2678,28 @@ static void dw_mci_cmd11_timer(unsigned long arg) tasklet_schedule(&host->tasklet); } +static void dw_mci_dto_timer(unsigned long arg) +{ + struct dw_mci *host = (struct dw_mci *)arg; + + switch (host->state) { + case STATE_SENDING_DATA: + case STATE_DATA_BUSY: + /* + * If DTO interrupt does NOT come in sending data state, + * we should notify the driver to terminate current transfer + * and report a data timeout to the core. + */ + host->data_status = SDMMC_INT_DRTO; + set_bit(EVENT_DATA_ERROR, &host->pending_events); + set_bit(EVENT_DATA_COMPLETE, &host->pending_events); + tasklet_schedule(&host->tasklet); + break; + default: + break; + } +} + #ifdef CONFIG_OF static struct dw_mci_of_quirks { char *quirk; @@ -2822,6 +2878,10 @@ int dw_mci_probe(struct dw_mci *host) host->quirks = host->pdata->quirks; + if (host->quirks & DW_MCI_QUIRK_BROKEN_DTO) + setup_timer(&host->dto_timer, + dw_mci_dto_timer, (unsigned long)host); + spin_lock_init(&host->lock); spin_lock_init(&host->irq_lock); INIT_LIST_HEAD(&host->queue); diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h index b14fcb5012f1..134c57422740 100644 --- a/include/linux/mmc/dw_mmc.h +++ b/include/linux/mmc/dw_mmc.h @@ -98,6 +98,7 @@ struct mmc_data; * @irq_flags: The flags to be passed to request_irq. * @irq: The irq value to be passed to request_irq. * @sdio_id0: Number of slot0 in the SDIO interrupt registers. + * @dto_timer: Timer for broken data transfer over scheme. * * Locking * ======= @@ -200,6 +201,7 @@ struct dw_mci { int sdio_id0; struct timer_list cmd11_timer; + struct timer_list dto_timer; }; /* DMA ops for Internal/External DMAC interface */ @@ -222,6 +224,8 @@ struct dw_mci_dma_ops { #define DW_MCI_QUIRK_HIGHSPEED BIT(2) /* Unreliable card detection */ #define DW_MCI_QUIRK_BROKEN_CARD_DETECTION BIT(3) +/* Timer for broken data transfer over scheme */ +#define DW_MCI_QUIRK_BROKEN_DTO BIT(4) struct dma_pdata; -- cgit v1.2.3-71-gd317 From d407e30ba614b1542c8ac032f8fb2332b8071efe Mon Sep 17 00:00:00 2001 From: Haibo Chen Date: Tue, 11 Aug 2015 19:38:27 +0800 Subject: mmc: sdhci-esdhc-imx: add tuning-step setting support tuning-step is the delay cell steps in tuning procedure. The default value of tuning-step is 1. Some boards or cards need another value to pass the tuning procedure. For example, imx7d-sdb board need the tuning-step value as 2, otherwise it can't pass the tuning procedure. So this patch add the tuning-step setting in driver, so that user can set the tuning-step value in dts. Signed-off-by: Haibo Chen Acked-by: Dong Aisheng Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-esdhc-imx.c | 9 +++++++++ include/linux/platform_data/mmc-esdhc-imx.h | 1 + 2 files changed, 10 insertions(+) (limited to 'include') diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index b8b7e8842ed0..298551d00fa4 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -75,6 +75,7 @@ #define ESDHC_STD_TUNING_EN (1 << 24) /* NOTE: the minimum valid tuning start tap for mx6sl is 1 */ #define ESDHC_TUNING_START_TAP 0x1 +#define ESDHC_TUNING_STEP_SHIFT 16 /* pinctrl state */ #define ESDHC_PINCTRL_STATE_100MHZ "state_100mhz" @@ -474,6 +475,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) } else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) { u32 v = readl(host->ioaddr + SDHCI_ACMD12_ERR); u32 m = readl(host->ioaddr + ESDHC_MIX_CTRL); + u32 tuning_ctrl; if (val & SDHCI_CTRL_TUNED_CLK) { v |= ESDHC_MIX_CTRL_SMPCLK_SEL; } else { @@ -484,6 +486,11 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) if (val & SDHCI_CTRL_EXEC_TUNING) { v |= ESDHC_MIX_CTRL_EXE_TUNE; m |= ESDHC_MIX_CTRL_FBCLK_SEL; + tuning_ctrl = readl(host->ioaddr + ESDHC_TUNING_CTRL); + tuning_ctrl |= ESDHC_STD_TUNING_EN | ESDHC_TUNING_START_TAP; + if (imx_data->boarddata.tuning_step) + tuning_ctrl |= imx_data->boarddata.tuning_step << ESDHC_TUNING_STEP_SHIFT; + writel(tuning_ctrl, host->ioaddr + ESDHC_TUNING_CTRL); } else { v &= ~ESDHC_MIX_CTRL_EXE_TUNE; } @@ -963,6 +970,8 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, if (gpio_is_valid(boarddata->wp_gpio)) boarddata->wp_type = ESDHC_WP_GPIO; + of_property_read_u32(np, "fsl,tuning-step", &boarddata->tuning_step); + if (of_find_property(np, "no-1-8-v", NULL)) boarddata->support_vsel = false; else diff --git a/include/linux/platform_data/mmc-esdhc-imx.h b/include/linux/platform_data/mmc-esdhc-imx.h index e1571efa3f2b..95ccab3f454a 100644 --- a/include/linux/platform_data/mmc-esdhc-imx.h +++ b/include/linux/platform_data/mmc-esdhc-imx.h @@ -45,5 +45,6 @@ struct esdhc_platform_data { int max_bus_width; bool support_vsel; unsigned int delay_line; + unsigned int tuning_step; /* The delay cell steps in tuning procedure */ }; #endif /* __ASM_ARCH_IMX_ESDHC_H */ -- cgit v1.2.3-71-gd317 From b5b4ff0a633910b2b9dca7915fd6ab17aa10dc3e Mon Sep 17 00:00:00 2001 From: Shawn Lin Date: Wed, 12 Aug 2015 13:08:32 +0800 Subject: mmc: block: skip trim for some kingston eMMCs For some mass production of kingston eMMCs which adopt Phison's firmware will meet an unrecoverable data conrruption occasionally if performing trim due to a firmware bug confirmed by vendor. We found it on Intel-C3230RK platform. So we add fixup of broken trim for it. Signed-off-by: Shawn Lin Signed-off-by: Ulf Hansson --- drivers/mmc/card/block.c | 10 ++++++++++ drivers/mmc/core/core.c | 3 ++- include/linux/mmc/card.h | 2 ++ 3 files changed, 14 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index a58287e574cc..c742cfd7674e 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -2389,6 +2389,7 @@ force_ro_fail: #define CID_MANFID_TOSHIBA 0x11 #define CID_MANFID_MICRON 0x13 #define CID_MANFID_SAMSUNG 0x15 +#define CID_MANFID_KINGSTON 0x70 static const struct mmc_fixup blk_fixups[] = { @@ -2451,6 +2452,15 @@ static const struct mmc_fixup blk_fixups[] = MMC_FIXUP("VZL00M", CID_MANFID_SAMSUNG, CID_OEMID_ANY, add_quirk_mmc, MMC_QUIRK_SEC_ERASE_TRIM_BROKEN), + /* + * On Some Kingston eMMCs, performing trim can result in + * unrecoverable data conrruption occasionally due to a firmware bug. + */ + MMC_FIXUP("V10008", CID_MANFID_KINGSTON, CID_OEMID_ANY, add_quirk_mmc, + MMC_QUIRK_TRIM_BROKEN), + MMC_FIXUP("V10016", CID_MANFID_KINGSTON, CID_OEMID_ANY, add_quirk_mmc, + MMC_QUIRK_TRIM_BROKEN), + END_FIXUP }; diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 57edb2a9bb04..664b61729fa9 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2250,7 +2250,8 @@ EXPORT_SYMBOL(mmc_can_erase); int mmc_can_trim(struct mmc_card *card) { - if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN) + if ((card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN) && + (!(card->quirks & MMC_QUIRK_TRIM_BROKEN))) return 1; return 0; } diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 8fcbcd13218f..fdd0779ccdfa 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -279,6 +279,8 @@ struct mmc_card { #define MMC_QUIRK_LONG_READ_TIME (1<<9) /* Data read time > CSD says */ #define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */ #define MMC_QUIRK_BROKEN_IRQ_POLLING (1<<11) /* Polling SDIO_CCCR_INTx could create a fake interrupt */ +#define MMC_QUIRK_TRIM_BROKEN (1<<12) /* Skip trim */ + unsigned int erase_size; /* erase size in sectors */ unsigned int erase_shift; /* if erase unit is power 2 */ -- cgit v1.2.3-71-gd317