Le 16/03/2015 23:44, Alexandre Belloni a écrit : > From: Boris Brezillon <boris.brezil...@free-electrons.com> > > The at91rm9200 SoC embeds a Memory Controller block which is used to > configure several aspects of the platform: > - AHB/APB Bus behavior > - SDRAM Controller > - EBI (External Bus Interface) and SMC (Static Memory Controller) config > > Those registers might be accessed by different drivers, hence we need to > define it as a syscon device. > > Signed-off-by: Boris Brezillon <boris.brezil...@free-electrons.com>
Alexandre, don't you need to Ack this patch at least? > --- > include/linux/mfd/syscon/atmel-mc.h | 144 > ++++++++++++++++++++++++++++++++++++ > 1 file changed, 144 insertions(+) > create mode 100644 include/linux/mfd/syscon/atmel-mc.h > > diff --git a/include/linux/mfd/syscon/atmel-mc.h > b/include/linux/mfd/syscon/atmel-mc.h > new file mode 100644 > index 000000000000..cb7d9fe89e44 > --- /dev/null > +++ b/include/linux/mfd/syscon/atmel-mc.h > @@ -0,0 +1,144 @@ > +/* > + * Copyright (C) 2005 Ivan Kokshaysky > + * Copyright (C) SAN People > + * > + * Memory Controllers (MC, EBI, SMC, SDRAMC, BFC) - System peripherals > + * registers. > + * Based on AT91RM9200 datasheet revision E. > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#ifndef _LINUX_MFD_SYSCON_ATMEL_MC_H_ > +#define _LINUX_MFD_SYSCON_ATMEL_MC_H_ > + > +/* Memory Controller */ > +#define AT91_MC_RCR 0x00 > +#define AT91_MC_RCB BIT(0) > + > +#define AT91_MC_ASR 0x04 > +#define AT91_MC_UNADD BIT(0) > +#define AT91_MC_MISADD BIT(1) > +#define AT91_MC_ABTSZ GENMASK(9, 8) > +#define AT91_MC_ABTSZ_BYTE (0 << 8) > +#define AT91_MC_ABTSZ_HALFWORD (1 << 8) > +#define AT91_MC_ABTSZ_WORD (2 << 8) > +#define AT91_MC_ABTTYP GENMASK(11, 10) > +#define AT91_MC_ABTTYP_DATAREAD (0 << 10) > +#define AT91_MC_ABTTYP_DATAWRITE (1 << 10) > +#define AT91_MC_ABTTYP_FETCH (2 << 10) > +#define AT91_MC_MST(n) BIT(16 + (n)) > +#define AT91_MC_SVMST(n) BIT(24 + (n)) > + > +#define AT91_MC_AASR 0x08 > + > +#define AT91_MC_MPR 0x0c > +#define AT91_MPR_MSTP(n) GENMASK(2 + ((x) * 4), ((x) * 4)) > + > +/* External Bus Interface (EBI) registers */ > +#define AT91_MC_EBI_CSA 0x60 > +#define AT91_MC_EBI_CS(n) BIT(x) > +#define AT91_MC_EBI_NUM_CS 8 > + > +#define AT91_MC_EBI_CFGR 0x64 > +#define AT91_MC_EBI_DBPUC BIT(0) > + > +/* Static Memory Controller (SMC) registers */ > +#define AT91_MC_SMC_CSR(n) (0x70 + ((n) * 4)) > +#define AT91_MC_SMC_NWS GENMASK(6, 0) > +#define AT91_MC_SMC_NWS_(x) ((x) << 0) > +#define AT91_MC_SMC_WSEN BIT(7) > +#define AT91_MC_SMC_TDF GENMASK(11, 8) > +#define AT91_MC_SMC_TDF_(x) ((x) << 8) > +#define AT91_MC_SMC_TDF_MAX 0xf > +#define AT91_MC_SMC_BAT BIT(12) > +#define AT91_MC_SMC_DBW GENMASK(14, 13) > +#define AT91_MC_SMC_DBW_16 (1 << 13) > +#define AT91_MC_SMC_DBW_8 (2 << 13) > +#define AT91_MC_SMC_DPR BIT(15) > +#define AT91_MC_SMC_ACSS GENMASK(17, 16) > +#define AT91_MC_SMC_ACSS_(x) ((x) << 16) > +#define AT91_MC_SMC_ACSS_MAX 3 > +#define AT91_MC_SMC_RWSETUP GENMASK(26, 24) > +#define AT91_MC_SMC_RWSETUP_(x) ((x) << 24) > +#define AT91_MC_SMC_RWHOLD GENMASK(30, 28) > +#define AT91_MC_SMC_RWHOLD_(x) ((x) << 28) > +#define AT91_MC_SMC_RWHOLDSETUP_MAX 7 > + > +/* SDRAM Controller registers */ > +#define AT91_MC_SDRAMC_MR 0x90 > +#define AT91_MC_SDRAMC_MODE GENMASK(3, 0) > +#define AT91_MC_SDRAMC_MODE_NORMAL (0 << 0) > +#define AT91_MC_SDRAMC_MODE_NOP (1 << 0) > +#define AT91_MC_SDRAMC_MODE_PRECHARGE (2 << 0) > +#define AT91_MC_SDRAMC_MODE_LMR (3 << 0) > +#define AT91_MC_SDRAMC_MODE_REFRESH (4 << 0) > +#define AT91_MC_SDRAMC_DBW_16 BIT(4) > + > +#define AT91_MC_SDRAMC_TR 0x94 > +#define AT91_MC_SDRAMC_COUNT GENMASK(11, 0) > + > +#define AT91_MC_SDRAMC_CR 0x98 > +#define AT91_MC_SDRAMC_NC GENMASK(1, 0) > +#define AT91_MC_SDRAMC_NC_8 (0 << 0) > +#define AT91_MC_SDRAMC_NC_9 (1 << 0) > +#define AT91_MC_SDRAMC_NC_10 (2 << 0) > +#define AT91_MC_SDRAMC_NC_11 (3 << 0) > +#define AT91_MC_SDRAMC_NR GENMASK(3, 2) > +#define AT91_MC_SDRAMC_NR_11 (0 << 2) > +#define AT91_MC_SDRAMC_NR_12 (1 << 2) > +#define AT91_MC_SDRAMC_NR_13 (2 << 2) > +#define AT91_MC_SDRAMC_NB BIT(4) > +#define AT91_MC_SDRAMC_NB_2 (0 << 4) > +#define AT91_MC_SDRAMC_NB_4 (1 << 4) > +#define AT91_MC_SDRAMC_CAS GENMASK(6, 5) > +#define AT91_MC_SDRAMC_CAS_2 (2 << 5) > +#define AT91_MC_SDRAMC_TWR GENMASK(10, 7) > +#define AT91_MC_SDRAMC_TRC GENMASK(14, 11) > +#define AT91_MC_SDRAMC_TRP GENMASK(18, 15) > +#define AT91_MC_SDRAMC_TRCD GENMASK(22, 19) > +#define AT91_MC_SDRAMC_TRAS GENMASK(26, 23) > +#define AT91_MC_SDRAMC_TXSR GENMASK(30, 27) > + > +#define AT91_MC_SDRAMC_SRR 0x9c > +#define AT91_MC_SDRAMC_SRCB BIT(0) > + > +#define AT91_MC_SDRAMC_LPR 0xa0 > +#define AT91_MC_SDRAMC_LPCB BIT(0) > + > +#define AT91_MC_SDRAMC_IER 0xa4 > +#define AT91_MC_SDRAMC_IDR 0xa8 > +#define AT91_MC_SDRAMC_IMR 0xac > +#define AT91_MC_SDRAMC_ISR 0xb0 > +#define AT91_MC_SDRAMC_RES BIT(0) > + > +/* Burst Flash Controller register */ > +#define AT91_MC_BFC_MR 0xc0 > +#define AT91_MC_BFC_BFCOM GENMASK(1, 0) > +#define AT91_MC_BFC_BFCOM_DISABLED (0 << 0) > +#define AT91_MC_BFC_BFCOM_ASYNC (1 << 0) > +#define AT91_MC_BFC_BFCOM_BURST (2 << 0) > +#define AT91_MC_BFC_BFCC GENMASK(3, 2) > +#define AT91_MC_BFC_BFCC_MCK (1 << 2) > +#define AT91_MC_BFC_BFCC_DIV2 (2 << 2) > +#define AT91_MC_BFC_BFCC_DIV4 (3 << 2) > +#define AT91_MC_BFC_AVL GENMASK(7, 4) > +#define AT91_MC_BFC_PAGES GENMASK(10, 8) > +#define AT91_MC_BFC_PAGES_NO_PAGE (0 << 8) > +#define AT91_MC_BFC_PAGES_16 (1 << 8) > +#define AT91_MC_BFC_PAGES_32 (2 << 8) > +#define AT91_MC_BFC_PAGES_64 (3 << 8) > +#define AT91_MC_BFC_PAGES_128 (4 << 8) > +#define AT91_MC_BFC_PAGES_256 (5 << 8) > +#define AT91_MC_BFC_PAGES_512 (6 << 8) > +#define AT91_MC_BFC_PAGES_1024 (7 << 8) > +#define AT91_MC_BFC_OEL GENMASK(13, 12) > +#define AT91_MC_BFC_BAAEN BIT(16) > +#define AT91_MC_BFC_BFOEH BIT(17) > +#define AT91_MC_BFC_MUXEN BIT(18) > +#define AT91_MC_BFC_RDYEN BIT(19) > + > +#endif /* _LINUX_MFD_SYSCON_ATMEL_MC_H_ */ > I'm not a big fan of the use of BIT/GENMASK macros in mix with the << operator, but I guess it can be done anyway, so I'm okay: Acked-by: Nicolas Ferre <nicolas.fe...@atmel.com> Bye, -- Nicolas Ferre -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a 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