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| author | Ben Warren <biggerbadderben@gmail.com> | 2008-08-28 23:58:29 -0700 |
|---|---|---|
| committer | John Rigby <jrigby@freescale.com> | 2008-08-29 13:58:07 -0600 |
| commit | 80b00af01b3c9154774de2936f05a051e92f6a03 (patch) | |
| tree | 6fe630739a116a631e371585a22d976170b40cf7 /include/mpc5xxx_sdma.h | |
| parent | 8a490422bed685c9491274ec997f62061d88620b (diff) | |
| download | u-boot-80b00af01b3c9154774de2936f05a051e92f6a03.tar.gz | |
Move MPC5xxx_FEC driver to drivers/net
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Diffstat (limited to 'include/mpc5xxx_sdma.h')
| -rw-r--r-- | include/mpc5xxx_sdma.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/include/mpc5xxx_sdma.h b/include/mpc5xxx_sdma.h new file mode 100644 index 0000000000..8b740e4e6e --- /dev/null +++ b/include/mpc5xxx_sdma.h @@ -0,0 +1,93 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This file is based on code + * (C) Copyright Motorola, Inc., 2000 + * + * odin smartdma header file + */ + +#ifndef __MPC5XXX_SDMA_H +#define __MPC5XXX_SDMA_H + +#include <common.h> +#include <mpc5xxx.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 (MPC5XXX_SRAM + 0x0800) + +/* base address of SRAM area for buffer descriptors */ +#define FEC_BD_BASE (MPC5XXX_SRAM + 0x0820) + +/*---------------------------------------------------------------------*/ + +/* common shortcuts used by driver C code */ + +/*---------------------------------------------------------------------*/ + +/* Disable SmartDMA task */ +#define SDMA_TASK_DISABLE(tasknum) \ +{ \ + volatile ushort *tcr = (ushort *)(MPC5XXX_SDMA + 0x0000001c + 2 * tasknum); \ + *tcr = (*tcr) & (~0x8000); \ +} + +/* Enable SmartDMA task */ +#define SDMA_TASK_ENABLE(tasknum) \ +{ \ + volatile ushort *tcr = (ushort *) (MPC5XXX_SDMA + 0x0000001c + 2 * tasknum); \ + *tcr = (*tcr) | 0x8000; \ +} + +/* Enable interrupt */ +#define SDMA_INT_ENABLE(tasknum) \ +{ \ + struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA; \ + sdma->IntMask &= ~(1 << tasknum); \ +} + +/* Disable interrupt */ +#define SDMA_INT_DISABLE(tasknum) \ +{ \ + struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA; \ + sdma->IntMask |= (1 << tasknum); \ +} + + +/* Clear interrupt pending bits */ +#define SDMA_CLEAR_IEVENT(tasknum) \ +{ \ + struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA; \ + sdma->IntPend = (1 << tasknum); \ +} + +/* get interupt pending bit of a task */ +#define SDMA_GET_PENDINGBIT(tasknum) \ + ((*(vu_long *)(MPC5XXX_SDMA + 0x14)) & (1<<(tasknum))) + +/* get interupt mask bit of a task */ +#define SDMA_GET_MASKBIT(tasknum) \ + ((*(vu_long *)(MPC5XXX_SDMA + 0x18)) & (1<<(tasknum))) + +#endif /* __MPC5XXX_SDMA_H */ |