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2a7069190e
This patch adds support for the 256k L2 cache found on some IBM/AMCC 4xx PPC's. It introduces a common 4xx SoC file (sysdev/ppc4xx_soc.c) which currently "only" adds the L2 cache init code. Other common 4xx stuff can be added later here. The L2 cache handling code is a copy of Eugene's code in arch/ppc with small modifications. Tested on AMCC Taishan 440GX. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
150 lines
4.7 KiB
C
150 lines
4.7 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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/*
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* All those DCR register addresses are offsets from the base address
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* for the SRAM0 controller (e.g. 0x20 on 440GX). The base address is
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* excluded here and configured in the device tree.
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*/
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#define DCRN_SRAM0_SB0CR 0x00
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#define DCRN_SRAM0_SB1CR 0x01
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#define DCRN_SRAM0_SB2CR 0x02
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#define DCRN_SRAM0_SB3CR 0x03
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#define SRAM_SBCR_BU_MASK 0x00000180
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#define SRAM_SBCR_BS_64KB 0x00000800
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#define SRAM_SBCR_BU_RO 0x00000080
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#define SRAM_SBCR_BU_RW 0x00000180
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#define DCRN_SRAM0_BEAR 0x04
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#define DCRN_SRAM0_BESR0 0x05
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#define DCRN_SRAM0_BESR1 0x06
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#define DCRN_SRAM0_PMEG 0x07
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#define DCRN_SRAM0_CID 0x08
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#define DCRN_SRAM0_REVID 0x09
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#define DCRN_SRAM0_DPC 0x0a
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#define SRAM_DPC_ENABLE 0x80000000
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/*
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* All those DCR register addresses are offsets from the base address
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* for the SRAM0 controller (e.g. 0x30 on 440GX). The base address is
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* excluded here and configured in the device tree.
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*/
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#define DCRN_L2C0_CFG 0x00
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#define L2C_CFG_L2M 0x80000000
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#define L2C_CFG_ICU 0x40000000
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#define L2C_CFG_DCU 0x20000000
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#define L2C_CFG_DCW_MASK 0x1e000000
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#define L2C_CFG_TPC 0x01000000
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#define L2C_CFG_CPC 0x00800000
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#define L2C_CFG_FRAN 0x00200000
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#define L2C_CFG_SS_MASK 0x00180000
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#define L2C_CFG_SS_256 0x00000000
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#define L2C_CFG_CPIM 0x00040000
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#define L2C_CFG_TPIM 0x00020000
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#define L2C_CFG_LIM 0x00010000
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#define L2C_CFG_PMUX_MASK 0x00007000
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#define L2C_CFG_PMUX_SNP 0x00000000
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#define L2C_CFG_PMUX_IF 0x00001000
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#define L2C_CFG_PMUX_DF 0x00002000
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#define L2C_CFG_PMUX_DS 0x00003000
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#define L2C_CFG_PMIM 0x00000800
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#define L2C_CFG_TPEI 0x00000400
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#define L2C_CFG_CPEI 0x00000200
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#define L2C_CFG_NAM 0x00000100
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#define L2C_CFG_SMCM 0x00000080
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#define L2C_CFG_NBRM 0x00000040
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#define L2C_CFG_RDBW 0x00000008 /* only 460EX/GT */
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#define DCRN_L2C0_CMD 0x01
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#define L2C_CMD_CLR 0x80000000
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#define L2C_CMD_DIAG 0x40000000
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#define L2C_CMD_INV 0x20000000
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#define L2C_CMD_CCP 0x10000000
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#define L2C_CMD_CTE 0x08000000
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#define L2C_CMD_STRC 0x04000000
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#define L2C_CMD_STPC 0x02000000
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#define L2C_CMD_RPMC 0x01000000
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#define L2C_CMD_HCC 0x00800000
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#define DCRN_L2C0_ADDR 0x02
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#define DCRN_L2C0_DATA 0x03
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#define DCRN_L2C0_SR 0x04
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#define L2C_SR_CC 0x80000000
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#define L2C_SR_CPE 0x40000000
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#define L2C_SR_TPE 0x20000000
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#define L2C_SR_LRU 0x10000000
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#define L2C_SR_PCS 0x08000000
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#define DCRN_L2C0_REVID 0x05
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#define DCRN_L2C0_SNP0 0x06
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#define DCRN_L2C0_SNP1 0x07
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#define L2C_SNP_BA_MASK 0xffff0000
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#define L2C_SNP_SSR_MASK 0x0000f000
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#define L2C_SNP_SSR_32G 0x0000f000
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#define L2C_SNP_ESR 0x00000800
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#endif /* __DCR_REGS_H__ */
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