diff options
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r-- | drivers/mmc/host/pxamci.c | 13 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci.c | 34 |
2 files changed, 45 insertions, 2 deletions
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 65210fca37ed..d89475d36988 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c | |||
@@ -114,6 +114,7 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) | |||
114 | unsigned int nob = data->blocks; | 114 | unsigned int nob = data->blocks; |
115 | unsigned long long clks; | 115 | unsigned long long clks; |
116 | unsigned int timeout; | 116 | unsigned int timeout; |
117 | bool dalgn = 0; | ||
117 | u32 dcmd; | 118 | u32 dcmd; |
118 | int i; | 119 | int i; |
119 | 120 | ||
@@ -152,6 +153,9 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) | |||
152 | host->sg_cpu[i].dcmd = dcmd | length; | 153 | host->sg_cpu[i].dcmd = dcmd | length; |
153 | if (length & 31 && !(data->flags & MMC_DATA_READ)) | 154 | if (length & 31 && !(data->flags & MMC_DATA_READ)) |
154 | host->sg_cpu[i].dcmd |= DCMD_ENDIRQEN; | 155 | host->sg_cpu[i].dcmd |= DCMD_ENDIRQEN; |
156 | /* Not aligned to 8-byte boundary? */ | ||
157 | if (sg_dma_address(&data->sg[i]) & 0x7) | ||
158 | dalgn = 1; | ||
155 | if (data->flags & MMC_DATA_READ) { | 159 | if (data->flags & MMC_DATA_READ) { |
156 | host->sg_cpu[i].dsadr = host->res->start + MMC_RXFIFO; | 160 | host->sg_cpu[i].dsadr = host->res->start + MMC_RXFIFO; |
157 | host->sg_cpu[i].dtadr = sg_dma_address(&data->sg[i]); | 161 | host->sg_cpu[i].dtadr = sg_dma_address(&data->sg[i]); |
@@ -165,6 +169,15 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) | |||
165 | host->sg_cpu[host->dma_len - 1].ddadr = DDADR_STOP; | 169 | host->sg_cpu[host->dma_len - 1].ddadr = DDADR_STOP; |
166 | wmb(); | 170 | wmb(); |
167 | 171 | ||
172 | /* | ||
173 | * The PXA27x DMA controller encounters overhead when working with | ||
174 | * unaligned (to 8-byte boundaries) data, so switch on byte alignment | ||
175 | * mode only if we have unaligned data. | ||
176 | */ | ||
177 | if (dalgn) | ||
178 | DALGN |= (1 << host->dma); | ||
179 | else | ||
180 | DALGN &= (1 << host->dma); | ||
168 | DDADR(host->dma) = host->sg_dma; | 181 | DDADR(host->dma) = host->sg_dma; |
169 | DCSR(host->dma) = DCSR_RUN; | 182 | DCSR(host->dma) = DCSR_RUN; |
170 | } | 183 | } |
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 07c2048b230b..b413aa6c246b 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c | |||
@@ -55,6 +55,10 @@ static unsigned int debug_quirks = 0; | |||
55 | #define SDHCI_QUIRK_32BIT_DMA_SIZE (1<<7) | 55 | #define SDHCI_QUIRK_32BIT_DMA_SIZE (1<<7) |
56 | /* Controller needs to be reset after each request to stay stable */ | 56 | /* Controller needs to be reset after each request to stay stable */ |
57 | #define SDHCI_QUIRK_RESET_AFTER_REQUEST (1<<8) | 57 | #define SDHCI_QUIRK_RESET_AFTER_REQUEST (1<<8) |
58 | /* Controller needs voltage and power writes to happen separately */ | ||
59 | #define SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER (1<<9) | ||
60 | /* Controller has an off-by-one issue with timeout value */ | ||
61 | #define SDHCI_QUIRK_INCR_TIMEOUT_CONTROL (1<<10) | ||
58 | 62 | ||
59 | static const struct pci_device_id pci_ids[] __devinitdata = { | 63 | static const struct pci_device_id pci_ids[] __devinitdata = { |
60 | { | 64 | { |
@@ -115,7 +119,8 @@ static const struct pci_device_id pci_ids[] __devinitdata = { | |||
115 | .subvendor = PCI_ANY_ID, | 119 | .subvendor = PCI_ANY_ID, |
116 | .subdevice = PCI_ANY_ID, | 120 | .subdevice = PCI_ANY_ID, |
117 | .driver_data = SDHCI_QUIRK_SINGLE_POWER_WRITE | | 121 | .driver_data = SDHCI_QUIRK_SINGLE_POWER_WRITE | |
118 | SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS, | 122 | SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS | |
123 | SDHCI_QUIRK_BROKEN_DMA, | ||
119 | }, | 124 | }, |
120 | 125 | ||
121 | { | 126 | { |
@@ -124,7 +129,17 @@ static const struct pci_device_id pci_ids[] __devinitdata = { | |||
124 | .subvendor = PCI_ANY_ID, | 129 | .subvendor = PCI_ANY_ID, |
125 | .subdevice = PCI_ANY_ID, | 130 | .subdevice = PCI_ANY_ID, |
126 | .driver_data = SDHCI_QUIRK_SINGLE_POWER_WRITE | | 131 | .driver_data = SDHCI_QUIRK_SINGLE_POWER_WRITE | |
127 | SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS, | 132 | SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS | |
133 | SDHCI_QUIRK_BROKEN_DMA, | ||
134 | }, | ||
135 | |||
136 | { | ||
137 | .vendor = PCI_VENDOR_ID_MARVELL, | ||
138 | .device = PCI_DEVICE_ID_MARVELL_CAFE_SD, | ||
139 | .subvendor = PCI_ANY_ID, | ||
140 | .subdevice = PCI_ANY_ID, | ||
141 | .driver_data = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER | | ||
142 | SDHCI_QUIRK_INCR_TIMEOUT_CONTROL, | ||
128 | }, | 143 | }, |
129 | 144 | ||
130 | { | 145 | { |
@@ -469,6 +484,13 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) | |||
469 | break; | 484 | break; |
470 | } | 485 | } |
471 | 486 | ||
487 | /* | ||
488 | * Compensate for an off-by-one error in the CaFe hardware; otherwise, | ||
489 | * a too-small count gives us interrupt timeouts. | ||
490 | */ | ||
491 | if ((host->chip->quirks & SDHCI_QUIRK_INCR_TIMEOUT_CONTROL)) | ||
492 | count++; | ||
493 | |||
472 | if (count >= 0xF) { | 494 | if (count >= 0xF) { |
473 | printk(KERN_WARNING "%s: Too large timeout requested!\n", | 495 | printk(KERN_WARNING "%s: Too large timeout requested!\n", |
474 | mmc_hostname(host->mmc)); | 496 | mmc_hostname(host->mmc)); |
@@ -774,6 +796,14 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power) | |||
774 | BUG(); | 796 | BUG(); |
775 | } | 797 | } |
776 | 798 | ||
799 | /* | ||
800 | * At least the CaFe chip gets confused if we set the voltage | ||
801 | * and set turn on power at the same time, so set the voltage first. | ||
802 | */ | ||
803 | if ((host->chip->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER)) | ||
804 | writeb(pwr & ~SDHCI_POWER_ON, | ||
805 | host->ioaddr + SDHCI_POWER_CONTROL); | ||
806 | |||
777 | writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL); | 807 | writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL); |
778 | 808 | ||
779 | out: | 809 | out: |