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authorMichael Lauer <mickey@vanille-media.de>2006-05-11 17:23:44 +0000
committerOpenEmbedded Project <openembedded-devel@lists.openembedded.org>2006-05-11 17:23:44 +0000
commit844bf825c75c21864c1ba911642d58021e08e9ed (patch)
treea4fc24b7330cd955c23787749f4cf751bf35dc57 /packages/linux/linux-ezx/pxamci-4bit.patch
parent2222e629a6bf3ebaafce55cfd533486ec9926887 (diff)
add first stab at support for the Motorola A780 GSM phone
NOTE: for now, we use a dedicated linux-ezx kernel, but once this proves working, we will probably unify with linux-openzaurus
Diffstat (limited to 'packages/linux/linux-ezx/pxamci-4bit.patch')
-rw-r--r--packages/linux/linux-ezx/pxamci-4bit.patch64
1 files changed, 64 insertions, 0 deletions
diff --git a/packages/linux/linux-ezx/pxamci-4bit.patch b/packages/linux/linux-ezx/pxamci-4bit.patch
new file mode 100644
index 0000000000..2e16c5fa27
--- /dev/null
+++ b/packages/linux/linux-ezx/pxamci-4bit.patch
@@ -0,0 +1,64 @@
+Index: linux-2.6.16.5-a/drivers/mmc/pxamci.c
+===================================================================
+--- linux-2.6.16.5-a.orig/drivers/mmc/pxamci.c 2006-05-04 17:10:57.000000000 +0200
++++ linux-2.6.16.5-a/drivers/mmc/pxamci.c 2006-05-04 17:10:57.000000000 +0200
+@@ -60,6 +60,8 @@
+ unsigned int power_mode;
+ struct pxamci_platform_data *pdata;
+
++ unsigned int bus_width;
++
+ struct mmc_request *mrq;
+ struct mmc_command *cmd;
+ struct mmc_data *data;
+@@ -178,6 +180,9 @@
+ if (cmd->flags & MMC_RSP_BUSY)
+ cmdat |= CMDAT_BUSY;
+
++ if (host->bus_width == MMC_BUS_WIDTH_4)
++ cmdat |= CMDAT_SD_4DAT;
++
+ #define RSP_TYPE(x) ((x) & ~(MMC_RSP_BUSY|MMC_RSP_OPCODE))
+ switch (RSP_TYPE(mmc_resp_type(cmd))) {
+ case RSP_TYPE(MMC_RSP_R1): /* r1, r1b, r6 */
+@@ -409,8 +414,12 @@
+ host->cmdat |= CMDAT_INIT;
+ }
+
+- DBG("pxamci_set_ios: clkrt = %x cmdat = %x\n",
+- host->clkrt, host->cmdat);
++ /* Store bus width for later */
++ if (host->mmc->caps & MMC_CAP_4_BIT_DATA)
++ host->bus_width = ios->bus_width;
++
++ DBG("pxamci_set_ios: clkrt = %x cmdat = %x width = %x\n",
++ host->clkrt, host->cmdat, host->bus_width);
+ }
+
+ static struct mmc_host_ops pxamci_ops = {
+@@ -458,6 +467,9 @@
+ mmc->ops = &pxamci_ops;
+ mmc->f_min = CLOCKRATE_MIN;
+ mmc->f_max = CLOCKRATE_MAX;
++#ifdef CONFIG_PXA27x
++ //mmc->caps = MMC_CAP_4_BIT_DATA;
++#endif
+
+ /*
+ * We can do SG-DMA, but we don't because we never know how much
+Index: linux-2.6.16.5-a/drivers/mmc/pxamci.h
+===================================================================
+--- linux-2.6.16.5-a.orig/drivers/mmc/pxamci.h 2006-05-04 17:11:43.000000000 +0200
++++ linux-2.6.16.5-a/drivers/mmc/pxamci.h 2006-05-04 17:12:08.000000000 +0200
+@@ -47,6 +47,11 @@
+ #define SPI_EN (1 << 0)
+
+ #define MMC_CMDAT 0x0010
++#define CMDAT_SDIO_RESUME (1 << 13) /* PXA27x */
++#define CMDAT_SDIO_SUSPEND (1 << 12) /* PXA27x */
++#define CMDAT_SDIO_INT_EN (1 << 11) /* PXA27x */
++#define CMDAT_STOP_TRAN (1 << 10) /* PXA27x */
++#define CMDAT_SD_4DAT (1 << 8) /* PXA27x */
+ #define CMDAT_DMAEN (1 << 7)
+ #define CMDAT_INIT (1 << 6)
+ #define CMDAT_BUSY (1 << 5)