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0e6140a56f
Accessing indirect DCRs is done via a pair of address/data DCRs. Such accesses are thus inherently racy, vs. interrupts, preemption and possibly SMP if 4xx SMP cores are ever used. This updates the mfdcri/mtdcri macros in dcr-native.h (which were so far unused) to use a spinlock. In addition, add some common definitions to a new dcr-regs.h file. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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* Common DCR / SDR / CPR register definitions used on various IBM/AMCC
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* 4xx processors
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*
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* Copyright 2007 Benjamin Herrenschmidt, IBM Corp
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* <benh@kernel.crashing.org>
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*
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* Mostly lifted from asm-ppc/ibm4xx.h by
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*
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* Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
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*
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*/
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#ifndef __DCR_REGS_H__
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#define __DCR_REGS_H__
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/*
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* Most DCRs used for controlling devices such as the MAL, DMA engine,
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* etc... are obtained for the device tree.
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*
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* The definitions in this files are fixed DCRs and indirect DCRs that
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* are commonly used outside of specific drivers or refer to core
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* common registers that may occasionally have to be tweaked outside
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* of the driver main register set
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*/
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/* CPRs (440GX and 440SP/440SPe) */
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#define DCRN_CPR0_CONFIG_ADDR 0xc
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#define DCRN_CPR0_CONFIG_DATA 0xd
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/* SDRs (440GX and 440SP/440SPe) */
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#define DCRN_SDR0_CONFIG_ADDR 0xe
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#define DCRN_SDR0_CONFIG_DATA 0xf
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#define SDR0_PFC0 0x4100
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#define SDR0_PFC1 0x4101
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#define SDR0_PFC1_EPS 0x1c00000
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#define SDR0_PFC1_EPS_SHIFT 22
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#define SDR0_PFC1_RMII 0x02000000
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#define SDR0_MFR 0x4300
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#define SDR0_MFR_TAH0 0x80000000 /* TAHOE0 Enable */
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#define SDR0_MFR_TAH1 0x40000000 /* TAHOE1 Enable */
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#define SDR0_MFR_PCM 0x10000000 /* PPC440GP irq compat mode */
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#define SDR0_MFR_ECS 0x08000000 /* EMAC int clk */
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#define SDR0_MFR_T0TXFL 0x00080000
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#define SDR0_MFR_T0TXFH 0x00040000
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#define SDR0_MFR_T1TXFL 0x00020000
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#define SDR0_MFR_T1TXFH 0x00010000
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#define SDR0_MFR_E0TXFL 0x00008000
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#define SDR0_MFR_E0TXFH 0x00004000
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#define SDR0_MFR_E0RXFL 0x00002000
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#define SDR0_MFR_E0RXFH 0x00001000
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#define SDR0_MFR_E1TXFL 0x00000800
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#define SDR0_MFR_E1TXFH 0x00000400
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#define SDR0_MFR_E1RXFL 0x00000200
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#define SDR0_MFR_E1RXFH 0x00000100
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#define SDR0_MFR_E2TXFL 0x00000080
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#define SDR0_MFR_E2TXFH 0x00000040
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#define SDR0_MFR_E2RXFL 0x00000020
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#define SDR0_MFR_E2RXFH 0x00000010
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#define SDR0_MFR_E3TXFL 0x00000008
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#define SDR0_MFR_E3TXFH 0x00000004
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#define SDR0_MFR_E3RXFL 0x00000002
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#define SDR0_MFR_E3RXFH 0x00000001
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#define SDR0_UART0 0x0120
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#define SDR0_UART1 0x0121
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#define SDR0_UART2 0x0122
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#define SDR0_UART3 0x0123
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#define SDR0_CUST0 0x4000
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#endif /* __DCR_REGS_H__ */
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