diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-01 12:15:15 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-01 12:15:15 -0500 |
commit | ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (patch) | |
tree | 816e5ac643b15c2050c64a7075f0f7e13d86ea09 /drivers/mmc/host | |
parent | b1bf9368407ae7e89d8a005bb40beb70a41df539 (diff) | |
parent | 9f33be2c3a80bdc2cc08342dd77fac87652e0548 (diff) |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (100 commits)
ARM: Eliminate decompressor -Dstatic= PIC hack
ARM: 5958/1: ARM: U300: fix inverted clk round rate
ARM: 5956/1: misplaced parentheses
ARM: 5955/1: ep93xx: move timer defines into core.c and document
ARM: 5954/1: ep93xx: move gpio interrupt support to gpio.c
ARM: 5953/1: ep93xx: fix broken build of clock.c
ARM: 5952/1: ARM: MM: Add ARM_L1_CACHE_SHIFT_6 for handle inside each ARCH Kconfig
ARM: 5949/1: NUC900 add gpio virtual memory map
ARM: 5948/1: Enable timer0 to time4 clock support for nuc910
ARM: 5940/2: ARM: MMCI: remove custom DBG macro and printk
ARM: make_coherent(): fix problems with highpte, part 2
MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself
ARM: 5945/1: ep93xx: include correct irq.h in core.c
ARM: 5933/1: amba-pl011: support hardware flow control
ARM: 5930/1: Add PKMAP area description to memory.txt.
ARM: 5929/1: Add checks to detect overlap of memory regions.
ARM: 5928/1: Change type of VMALLOC_END to unsigned long.
ARM: 5927/1: Make delimiters of DMA area globally visibly.
ARM: 5926/1: Add "Virtual kernel memory..." printout.
ARM: 5920/1: OMAP4: Enable L2 Cache
...
Fix up trivial conflict in arch/arm/mach-mx25/clock.c
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r-- | drivers/mmc/host/mmci.c | 41 |
1 files changed, 27 insertions, 14 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 90d168ad03b6..84c103a7ee13 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c | |||
@@ -2,6 +2,7 @@ | |||
2 | * linux/drivers/mmc/host/mmci.c - ARM PrimeCell MMCI PL180/1 driver | 2 | * linux/drivers/mmc/host/mmci.c - ARM PrimeCell MMCI PL180/1 driver |
3 | * | 3 | * |
4 | * Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved. | 4 | * Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved. |
5 | * Copyright (C) 2010 ST-Ericsson AB. | ||
5 | * | 6 | * |
6 | * This program is free software; you can redistribute it and/or modify | 7 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License version 2 as | 8 | * it under the terms of the GNU General Public License version 2 as |
@@ -34,9 +35,6 @@ | |||
34 | 35 | ||
35 | #define DRIVER_NAME "mmci-pl18x" | 36 | #define DRIVER_NAME "mmci-pl18x" |
36 | 37 | ||
37 | #define DBG(host,fmt,args...) \ | ||
38 | pr_debug("%s: %s: " fmt, mmc_hostname(host->mmc), __func__ , args) | ||
39 | |||
40 | static unsigned int fmax = 515633; | 38 | static unsigned int fmax = 515633; |
41 | 39 | ||
42 | /* | 40 | /* |
@@ -105,8 +103,8 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data) | |||
105 | void __iomem *base; | 103 | void __iomem *base; |
106 | int blksz_bits; | 104 | int blksz_bits; |
107 | 105 | ||
108 | DBG(host, "blksz %04x blks %04x flags %08x\n", | 106 | dev_dbg(mmc_dev(host->mmc), "blksz %04x blks %04x flags %08x\n", |
109 | data->blksz, data->blocks, data->flags); | 107 | data->blksz, data->blocks, data->flags); |
110 | 108 | ||
111 | host->data = data; | 109 | host->data = data; |
112 | host->size = data->blksz; | 110 | host->size = data->blksz; |
@@ -155,7 +153,7 @@ mmci_start_command(struct mmci_host *host, struct mmc_command *cmd, u32 c) | |||
155 | { | 153 | { |
156 | void __iomem *base = host->base; | 154 | void __iomem *base = host->base; |
157 | 155 | ||
158 | DBG(host, "op %02x arg %08x flags %08x\n", | 156 | dev_dbg(mmc_dev(host->mmc), "op %02x arg %08x flags %08x\n", |
159 | cmd->opcode, cmd->arg, cmd->flags); | 157 | cmd->opcode, cmd->arg, cmd->flags); |
160 | 158 | ||
161 | if (readl(base + MMCICOMMAND) & MCI_CPSM_ENABLE) { | 159 | if (readl(base + MMCICOMMAND) & MCI_CPSM_ENABLE) { |
@@ -184,8 +182,20 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data, | |||
184 | { | 182 | { |
185 | if (status & MCI_DATABLOCKEND) { | 183 | if (status & MCI_DATABLOCKEND) { |
186 | host->data_xfered += data->blksz; | 184 | host->data_xfered += data->blksz; |
185 | #ifdef CONFIG_ARCH_U300 | ||
186 | /* | ||
187 | * On the U300 some signal or other is | ||
188 | * badly routed so that a data write does | ||
189 | * not properly terminate with a MCI_DATAEND | ||
190 | * status flag. This quirk will make writes | ||
191 | * work again. | ||
192 | */ | ||
193 | if (data->flags & MMC_DATA_WRITE) | ||
194 | status |= MCI_DATAEND; | ||
195 | #endif | ||
187 | } | 196 | } |
188 | if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|MCI_RXOVERRUN)) { | 197 | if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|MCI_RXOVERRUN)) { |
198 | dev_dbg(mmc_dev(host->mmc), "MCI ERROR IRQ (status %08x)\n", status); | ||
189 | if (status & MCI_DATACRCFAIL) | 199 | if (status & MCI_DATACRCFAIL) |
190 | data->error = -EILSEQ; | 200 | data->error = -EILSEQ; |
191 | else if (status & MCI_DATATIMEOUT) | 201 | else if (status & MCI_DATATIMEOUT) |
@@ -307,7 +317,7 @@ static irqreturn_t mmci_pio_irq(int irq, void *dev_id) | |||
307 | 317 | ||
308 | status = readl(base + MMCISTATUS); | 318 | status = readl(base + MMCISTATUS); |
309 | 319 | ||
310 | DBG(host, "irq1 %08x\n", status); | 320 | dev_dbg(mmc_dev(host->mmc), "irq1 (pio) %08x\n", status); |
311 | 321 | ||
312 | do { | 322 | do { |
313 | unsigned long flags; | 323 | unsigned long flags; |
@@ -401,7 +411,7 @@ static irqreturn_t mmci_irq(int irq, void *dev_id) | |||
401 | status &= readl(host->base + MMCIMASK0); | 411 | status &= readl(host->base + MMCIMASK0); |
402 | writel(status, host->base + MMCICLEAR); | 412 | writel(status, host->base + MMCICLEAR); |
403 | 413 | ||
404 | DBG(host, "irq0 %08x\n", status); | 414 | dev_dbg(mmc_dev(host->mmc), "irq0 (data+cmd) %08x\n", status); |
405 | 415 | ||
406 | data = host->data; | 416 | data = host->data; |
407 | if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN| | 417 | if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN| |
@@ -428,8 +438,8 @@ static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq) | |||
428 | WARN_ON(host->mrq != NULL); | 438 | WARN_ON(host->mrq != NULL); |
429 | 439 | ||
430 | if (mrq->data && !is_power_of_2(mrq->data->blksz)) { | 440 | if (mrq->data && !is_power_of_2(mrq->data->blksz)) { |
431 | printk(KERN_ERR "%s: Unsupported block size (%d bytes)\n", | 441 | dev_err(mmc_dev(mmc), "unsupported block size (%d bytes)\n", |
432 | mmc_hostname(mmc), mrq->data->blksz); | 442 | mrq->data->blksz); |
433 | mrq->cmd->error = -EINVAL; | 443 | mrq->cmd->error = -EINVAL; |
434 | mmc_request_done(mmc, mrq); | 444 | mmc_request_done(mmc, mrq); |
435 | return; | 445 | return; |
@@ -582,8 +592,8 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) | |||
582 | 592 | ||
583 | host->hw_designer = amba_manf(dev); | 593 | host->hw_designer = amba_manf(dev); |
584 | host->hw_revision = amba_rev(dev); | 594 | host->hw_revision = amba_rev(dev); |
585 | DBG(host, "designer ID = 0x%02x\n", host->hw_designer); | 595 | dev_dbg(mmc_dev(mmc), "designer ID = 0x%02x\n", host->hw_designer); |
586 | DBG(host, "revision = 0x%01x\n", host->hw_revision); | 596 | dev_dbg(mmc_dev(mmc), "revision = 0x%01x\n", host->hw_revision); |
587 | 597 | ||
588 | host->clk = clk_get(&dev->dev, NULL); | 598 | host->clk = clk_get(&dev->dev, NULL); |
589 | if (IS_ERR(host->clk)) { | 599 | if (IS_ERR(host->clk)) { |
@@ -608,7 +618,8 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) | |||
608 | if (ret < 0) | 618 | if (ret < 0) |
609 | goto clk_disable; | 619 | goto clk_disable; |
610 | host->mclk = clk_get_rate(host->clk); | 620 | host->mclk = clk_get_rate(host->clk); |
611 | DBG(host, "eventual mclk rate: %u Hz\n", host->mclk); | 621 | dev_dbg(mmc_dev(mmc), "eventual mclk rate: %u Hz\n", |
622 | host->mclk); | ||
612 | } | 623 | } |
613 | host->base = ioremap(dev->res.start, resource_size(&dev->res)); | 624 | host->base = ioremap(dev->res.start, resource_size(&dev->res)); |
614 | if (!host->base) { | 625 | if (!host->base) { |
@@ -619,6 +630,8 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) | |||
619 | mmc->ops = &mmci_ops; | 630 | mmc->ops = &mmci_ops; |
620 | mmc->f_min = (host->mclk + 511) / 512; | 631 | mmc->f_min = (host->mclk + 511) / 512; |
621 | mmc->f_max = min(host->mclk, fmax); | 632 | mmc->f_max = min(host->mclk, fmax); |
633 | dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max); | ||
634 | |||
622 | #ifdef CONFIG_REGULATOR | 635 | #ifdef CONFIG_REGULATOR |
623 | /* If we're using the regulator framework, try to fetch a regulator */ | 636 | /* If we're using the regulator framework, try to fetch a regulator */ |
624 | host->vcc = regulator_get(&dev->dev, "vmmc"); | 637 | host->vcc = regulator_get(&dev->dev, "vmmc"); |
@@ -712,7 +725,7 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) | |||
712 | 725 | ||
713 | mmc_add_host(mmc); | 726 | mmc_add_host(mmc); |
714 | 727 | ||
715 | printk(KERN_INFO "%s: MMCI rev %x cfg %02x at 0x%016llx irq %d,%d\n", | 728 | dev_info(&dev->dev, "%s: MMCI rev %x cfg %02x at 0x%016llx irq %d,%d\n", |
716 | mmc_hostname(mmc), amba_rev(dev), amba_config(dev), | 729 | mmc_hostname(mmc), amba_rev(dev), amba_config(dev), |
717 | (unsigned long long)dev->res.start, dev->irq[0], dev->irq[1]); | 730 | (unsigned long long)dev->res.start, dev->irq[0], dev->irq[1]); |
718 | 731 | ||