This patch series attempts to clean up the DMA implementation for the 83xx, 85xx, and 86xx architectures. The changes include: - consolidate 83xx, 85xx, and 86xx structures and code - add defines for bitfields - use proper IO accessors - add support for arbitrarily large transfer sizes - rename dma_xfer() to dmacpy() and make dmacpy's prototype similar to memcpy()
Changes since v1: - Add 83xx patches, these were previously submitted as an RFC - Add a CONFIG_FSL_DMA check to include/asm-ppc/config.h - Use phys_addr_t and phys_size_t arguments to dmacpy()
I've tested the code on MPC8572 and MPC8640-based boards. Ira Snyder tested on an 83xx-based board. I compile-tested all 8xxx boards.
Peter Tyser (12): 85xx, 86xx: Break out DMA code to a common file fsl_dma: Add bitfield definitions for common registers fsl_dma: Use proper I/O access functions fsl_dma: Add support for arbitrarily large transfers fsl_dma: Fix Channel Start bug in dma_check() 8xxx: Rename dma_xfer() to dmacpy() fsl_dma: Move dma function prototypes to common header file 85xx, 86xx: Move dma_init() call to common code fsl_dma: Break out common memory initialization function fsl_dma: Make DMA transactions snoopable 83xx: Replace CONFIG_ECC_INIT_VIA_DDRC references 83xx: Add support for fsl_dma driver
board/freescale/mpc8360emds/mpc8360emds.c | 4 +- board/freescale/mpc8360erdk/mpc8360erdk.c | 4 +- board/freescale/mpc837xemds/mpc837xemds.c | 4 +- board/freescale/mpc837xerdb/mpc837xerdb.c | 4 +- board/keymile/kmeter1/kmeter1.c | 4 +- board/mpc8540eval/mpc8540eval.c | 35 +------ board/sbc8560/sbc8560.c | 33 +----- cpu/mpc83xx/cpu.c | 85 -------------- cpu/mpc83xx/spd_sdram.c | 43 +------ cpu/mpc85xx/cpu.c | 47 -------- cpu/mpc85xx/cpu_init.c | 4 +- cpu/mpc85xx/ddr-gen1.c | 33 +----- cpu/mpc86xx/cpu.c | 55 --------- cpu/mpc86xx/cpu_init.c | 3 + drivers/dma/Makefile | 1 + drivers/dma/fsl_dma.c | 178 +++++++++++++++++++++++++++++ include/asm-ppc/config.h | 8 ++ include/asm-ppc/fsl_dma.h | 90 +++++++++++++++ include/asm-ppc/immap_83xx.h | 49 +------- include/configs/PM854.h | 1 + include/configs/PM856.h | 1 + include/mpc83xx.h | 16 --- 22 files changed, 308 insertions(+), 394 deletions(-) create mode 100644 drivers/dma/fsl_dma.c