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authorMark A. Greer <mgreer@mvista.com>2009-06-03 18:36:54 -0700
committerKevin Hilman <khilman@deeprootsystems.com>2009-08-26 10:56:59 +0300
commit55c79a40e34566e9d198f6205b0cf06e3d89ac0a (patch)
treedb18d12effb87c61cfe4d14635feb7807dd0be42 /arch/arm/mach-davinci/include/mach/edma.h
parentff255c6caa389c90c68f5421f60ebfc40b68ea1b (diff)
davinci: da8xx: Add base DA830/OMAP-L137 SoC support
The da830/omap l137 is a new SoC from TI that is similar to the davinci line. Since its so similar to davinci, put the support for the da830 in the same directory as the davinci code. There are differences, however. Some of those differences prevent support for davinci and da830 platforms to work in the same kernel binary. Those differences are: 1) Different physical address for RAM. This is relevant to Makefile.boot addresses and PHYS_OFFSET. The Makefile.boot issue isn't truly a kernel issue but it means u-boot won't work with a uImage including both architectures. The PHYS_OFFSET issue is addressed by the "Allow for runtime-determined PHYS_OFFSET" patch by Lennert Buytenhek but it hasn't been accepted yet. 2) Different uart addresses. This is only an issue for the 'addruart' assembly macro when CONFIG_DEBUG_LL is enabled. Since the code in that macro is called so early (e.g., by _error_p in kernel/head.S when the processor lookup fails), we can't determine what platform the kernel is running on at runtime to use the correct uart address. These areas have compile errors intentionally inserted to indicate to the builder they're doing something wrong. A new config variable, CONFIG_ARCH_DAVINCI_DMx, is added to distinguish between a true davinci architecture and the da830 architecture. Note that the da830 currently has an issue with writeback data cache so CONFIG_CPU_DCACHE_WRITETHROUGH should be enabled when building a da830 kernel. Additional generalizations for future SoCs in the da8xx family done by Sudhakar Rajashekhara and Sekhar Nori. Signed-off-by: Steve Chen <schen@mvista.com> Signed-off-by: Mikhail Cherkashin <mcherkashin@ru.mvista.com> Signed-off-by: Mark A. Greer <mgreer@mvista.com> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Cc: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/edma.h')
-rw-r--r--arch/arm/mach-davinci/include/mach/edma.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/include/mach/edma.h b/arch/arm/mach-davinci/include/mach/edma.h
index ba2ebdd058a..a85cbedc9b0 100644
--- a/arch/arm/mach-davinci/include/mach/edma.h
+++ b/arch/arm/mach-davinci/include/mach/edma.h
@@ -139,6 +139,54 @@ struct edmacc_param {
#define DAVINCI_DMA_PWM1 53
#define DAVINCI_DMA_PWM2 54
+/* DA830 specific EDMA3 information */
+#define EDMA_DA830_NUM_DMACH 32
+#define EDMA_DA830_NUM_TCC 32
+#define EDMA_DA830_NUM_PARAMENTRY 128
+#define EDMA_DA830_NUM_EVQUE 2
+#define EDMA_DA830_NUM_TC 2
+#define EDMA_DA830_CHMAP_EXIST 0
+#define EDMA_DA830_NUM_REGIONS 4
+#define DA830_DMACH2EVENT_MAP0 0x000FC03Fu
+#define DA830_DMACH2EVENT_MAP1 0x00000000u
+#define DA830_EDMA_ARM_OWN 0x30FFCCFFu
+
+/* DA830 specific EDMA3 Events Information */
+enum DA830_edma_ch {
+ DA830_DMACH_MCASP0_RX,
+ DA830_DMACH_MCASP0_TX,
+ DA830_DMACH_MCASP1_RX,
+ DA830_DMACH_MCASP1_TX,
+ DA830_DMACH_MCASP2_RX,
+ DA830_DMACH_MCASP2_TX,
+ DA830_DMACH_GPIO_BNK0INT,
+ DA830_DMACH_GPIO_BNK1INT,
+ DA830_DMACH_UART0_RX,
+ DA830_DMACH_UART0_TX,
+ DA830_DMACH_TMR64P0_EVTOUT12,
+ DA830_DMACH_TMR64P0_EVTOUT34,
+ DA830_DMACH_UART1_RX,
+ DA830_DMACH_UART1_TX,
+ DA830_DMACH_SPI0_RX,
+ DA830_DMACH_SPI0_TX,
+ DA830_DMACH_MMCSD_RX,
+ DA830_DMACH_MMCSD_TX,
+ DA830_DMACH_SPI1_RX,
+ DA830_DMACH_SPI1_TX,
+ DA830_DMACH_DMAX_EVTOUT6,
+ DA830_DMACH_DMAX_EVTOUT7,
+ DA830_DMACH_GPIO_BNK2INT,
+ DA830_DMACH_GPIO_BNK3INT,
+ DA830_DMACH_I2C0_RX,
+ DA830_DMACH_I2C0_TX,
+ DA830_DMACH_I2C1_RX,
+ DA830_DMACH_I2C1_TX,
+ DA830_DMACH_GPIO_BNK4INT,
+ DA830_DMACH_GPIO_BNK5INT,
+ DA830_DMACH_UART2_RX,
+ DA830_DMACH_UART2_TX
+};
+
/*ch_status paramater of callback function possible values*/
#define DMA_COMPLETE 1
#define DMA_CC_ERROR 2