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| author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:09 -0500 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:16 +0200 |
| commit | 8d1f268204b07e172f3cb5cee0a3974d605b0b98 (patch) | |
| tree | c3359e920cc886e7060fb099bf933496aca37153 /arch/ppc/cpu/mpc8220/dma.h | |
| parent | 819833af39a91fa1c1e8252862bbda6f5a602f7b (diff) | |
| download | u-boot-imx-8d1f268204b07e172f3cb5cee0a3974d605b0b98.zip u-boot-imx-8d1f268204b07e172f3cb5cee0a3974d605b0b98.tar.gz u-boot-imx-8d1f268204b07e172f3cb5cee0a3974d605b0b98.tar.bz2 | |
ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/ppc/cpu/mpc8220/dma.h')
| -rw-r--r-- | arch/ppc/cpu/mpc8220/dma.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/ppc/cpu/mpc8220/dma.h b/arch/ppc/cpu/mpc8220/dma.h new file mode 100644 index 0000000..d06ee63 --- /dev/null +++ b/arch/ppc/cpu/mpc8220/dma.h @@ -0,0 +1,68 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This file is based on code + * (C) Copyright Motorola, Inc., 2000 + * + * MPC8220 dma header file + */ + +#ifndef __MPC8220_DMA_H +#define __MPC8220_DMA_H + +#include <common.h> +#include <mpc8220.h> + +/* Task number assignment */ +#define FEC_RECV_TASK_NO 0 +#define FEC_XMIT_TASK_NO 1 + +/*--------------------------------------------------------------------- + * Stuff for Ethernet Tx/Rx tasks + *--------------------------------------------------------------------- + */ + +/* Layout of Ethernet controller Parameter SRAM area: + * ---------------------------------------------------------------- + * 0x00: TBD_BASE, base address of TX BD ring + * 0x04: TBD_NEXT, address of next TX BD to be processed + * 0x08: RBD_BASE, base address of RX BD ring + * 0x0C: RBD_NEXT, address of next RX BD to be processed + * --------------------------------------------------------------- + * ALL PARAMETERS ARE ALL LONGWORDS (FOUR BYTES EACH). + */ + +/* base address of SRAM area to store parameters used by Ethernet tasks */ +#define FEC_PARAM_BASE (MMAP_SRAM + 0x5b00) + +/* base address of SRAM area for buffer descriptors */ +#define FEC_BD_BASE (MMAP_SRAM + 0x5b20) + +/*--------------------------------------------------------------------- + * common shortcuts used by driver C code + *--------------------------------------------------------------------- + */ + +/* Disable SmartDMA task */ +#define DMA_TASK_DISABLE(tasknum) \ +{ \ + volatile ushort *tcr = (ushort *)(MMAP_DMA + 0x0000001c + 2 * tasknum); \ + *tcr = (*tcr) & (~0x8000); \ +} + +/* Enable SmartDMA task */ +#define DMA_TASK_ENABLE(tasknum) \ +{ \ + volatile ushort *tcr = (ushort *) (MMAP_DMA + 0x0000001c + 2 * tasknum);\ + *tcr = (*tcr) | 0x8000; \ +} + +/* Clear interrupt pending bits */ +#define DMA_CLEAR_IEVENT(tasknum) \ +{ \ + struct mpc8220_dma *dma = (struct mpc8220_dma *)MMAP_DMA; \ + dma->IntPend = (1 << tasknum); \ +} + +#endif /* __MPC8220_DMA_H */ |