From b660df3c9031ba2efded2d083c34f2ea5ff978ff Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sun, 26 Aug 2012 15:19:06 +0000 Subject: COMMON: Implement common bounce buffer Implement common bounce buffer to be used on a less capable hardware. That includes hardware that can not do DMA from any address or such. Signed-off-by: Marek Vasut Cc: Fabio Estevam Cc: Andy Fleming Signed-off-by: Andy Fleming --- include/bouncebuf.h | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 include/bouncebuf.h (limited to 'include') diff --git a/include/bouncebuf.h b/include/bouncebuf.h new file mode 100644 index 0000000..31021c5 --- /dev/null +++ b/include/bouncebuf.h @@ -0,0 +1,87 @@ +/* + * Generic bounce buffer implementation + * + * Copyright (C) 2012 Marek Vasut + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef __INCLUDE_BOUNCEBUF_H__ +#define __INCLUDE_BOUNCEBUF_H__ + +/* + * GEN_BB_READ -- Data are read from the buffer eg. by DMA hardware. + * The source buffer is copied into the bounce buffer (if unaligned, otherwise + * the source buffer is used directly) upon start() call, then the operation + * requiring the aligned transfer happens, then the bounce buffer is lost upon + * stop() call. + */ +#define GEN_BB_READ (1 << 0) +/* + * GEN_BB_WRITE -- Data are written into the buffer eg. by DMA hardware. + * The source buffer starts in an undefined state upon start() call, then the + * operation requiring the aligned transfer happens, then the bounce buffer is + * copied into the destination buffer (if unaligned, otherwise destination + * buffer is used directly) upon stop() call. + */ +#define GEN_BB_WRITE (1 << 1) +/* + * GEN_BB_RW -- Data are read and written into the buffer eg. by DMA hardware. + * The source buffer is copied into the bounce buffer (if unaligned, otherwise + * the source buffer is used directly) upon start() call, then the operation + * requiring the aligned transfer happens, then the bounce buffer is copied + * into the destination buffer (if unaligned, otherwise destination buffer is + * used directly) upon stop() call. + */ +#define GEN_BB_RW (GEN_BB_READ | GEN_BB_WRITE) + +#ifdef CONFIG_BOUNCE_BUFFER +/** + * bounce_buffer_start() -- Start the bounce buffer session + * data: pointer to buffer to be aligned + * len: length of the buffer + * backup: pointer to backup buffer (the original value is stored here if + * needed + * flags: flags describing the transaction, see above. + */ +int bounce_buffer_start(void **data, size_t len, void **backup, uint8_t flags); +/** + * bounce_buffer_stop() -- Finish the bounce buffer session + * data: pointer to buffer that was aligned + * len: length of the buffer + * backup: pointer to backup buffer (the original value is stored here if + * needed + * flags: flags describing the transaction, see above. + */ +int bounce_buffer_stop(void **data, size_t len, void **backup, uint8_t flags); +#else +static inline int bounce_buffer_start(void **data, size_t len, void **backup, + uint8_t flags) +{ + return 0; +} + +static inline int bounce_buffer_stop(void **data, size_t len, void **backup, + uint8_t flags) +{ + return 0; +} +#endif + +#endif -- cgit v1.1 From 6dc71c8d2a3183a37624ef19a0532e7f827d868f Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sun, 26 Aug 2012 15:19:08 +0000 Subject: MMC: MXS: Toggle the generic bounce buffer on the boards Flip the boards to use the generic bounce buffer instead of the MMC one. Signed-off-by: Marek Vasut Cc: Andy Fleming Cc: Fabio Estevam Signed-off-by: Andy Fleming --- include/configs/apx4devkit.h | 2 +- include/configs/m28evk.h | 2 +- include/configs/mx28evk.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/configs/apx4devkit.h b/include/configs/apx4devkit.h index af0b714..6764b47 100644 --- a/include/configs/apx4devkit.h +++ b/include/configs/apx4devkit.h @@ -132,7 +132,7 @@ #ifdef CONFIG_CMD_MMC #define CONFIG_MMC #define CONFIG_GENERIC_MMC -#define CONFIG_MMC_BOUNCE_BUFFER +#define CONFIG_BOUNCE_BUFFER #define CONFIG_MXS_MMC #endif diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h index bdbb820..b49ec8c 100644 --- a/include/configs/m28evk.h +++ b/include/configs/m28evk.h @@ -135,7 +135,7 @@ */ #ifdef CONFIG_CMD_MMC #define CONFIG_MMC -#define CONFIG_MMC_BOUNCE_BUFFER +#define CONFIG_BOUNCE_BUFFER #define CONFIG_GENERIC_MMC #define CONFIG_MXS_MMC #endif diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h index 7cdbec6..1443833 100644 --- a/include/configs/mx28evk.h +++ b/include/configs/mx28evk.h @@ -142,7 +142,7 @@ #ifdef CONFIG_CMD_MMC #define CONFIG_MMC #define CONFIG_GENERIC_MMC -#define CONFIG_MMC_BOUNCE_BUFFER +#define CONFIG_BOUNCE_BUFFER #define CONFIG_MXS_MMC #endif -- cgit v1.1 From 13243f2eafc4292917178051fe1bb5aab2774dca Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Thu, 20 Sep 2012 20:31:57 +0000 Subject: mmc: sdhci: Add a quirk to add delay during completion of sdhci_send_cmd MMC host controller requires a delay between every sdhci_send_cmd() execution. In s5p_mmc driver (s5p_sdhci replaces this driver), a delay of 1000us was provided after every mmc_send_cmd() call. Adding a quirk in current sdhci driver to replicate the behaviour. Without this delay, MMC initialization on Origen board fails with following error messages. Timeout for status update! mmc fail to send stop cmd Signed-off-by: Tushar Behera Signed-off-by: Jaehoon Chung Signed-off-by: Andy Fleming --- include/sdhci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/sdhci.h b/include/sdhci.h index c0345ed..c44793d 100644 --- a/include/sdhci.h +++ b/include/sdhci.h @@ -224,6 +224,7 @@ #define SDHCI_QUIRK_NO_HISPD_BIT (1 << 3) #define SDHCI_QUIRK_BROKEN_VOLTAGE (1 << 4) #define SDHCI_QUIRK_NO_CD (1 << 5) +#define SDHCI_QUIRK_WAIT_SEND_CMD (1 << 6) /* to make gcc happy */ struct sdhci_host; -- cgit v1.1 From 831f849f79f2c9fcaa6f85f4158296d2dbc3916c Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sun, 30 Sep 2012 10:09:49 +0000 Subject: mmc: pxa: Flip over the remaining boards to pxa_mmc_generic Some of the boards still used the old PXA_MMC driver instead of the new generic one. Use the new one instead so the old can be removed and the generic MMC framework can be properly used. Signed-off-by: Marek Vasut Cc: Andy Fleming Signed-off-by: Andy Fleming --- include/configs/lubbock.h | 3 ++- include/configs/palmtc.h | 3 ++- include/configs/pxa255_idp.h | 3 ++- include/configs/trizepsiv.h | 3 ++- 4 files changed, 8 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/configs/lubbock.h b/include/configs/lubbock.h index ed64960..5886a15 100644 --- a/include/configs/lubbock.h +++ b/include/configs/lubbock.h @@ -130,7 +130,8 @@ #define CONFIG_SYS_CPUSPEED 0x161 /* set core clock to 400/200/100 MHz */ #ifdef CONFIG_MMC -#define CONFIG_PXA_MMC +#define CONFIG_GENERIC_MMC +#define CONFIG_PXA_MMC_GENERIC #define CONFIG_CMD_MMC #define CONFIG_SYS_MMC_BASE 0xF0000000 #endif diff --git a/include/configs/palmtc.h b/include/configs/palmtc.h index 6e8d8e9..9c948c5 100644 --- a/include/configs/palmtc.h +++ b/include/configs/palmtc.h @@ -77,7 +77,8 @@ */ #ifdef CONFIG_CMD_MMC #define CONFIG_MMC -#define CONFIG_PXA_MMC +#define CONFIG_GENERIC_MMC +#define CONFIG_PXA_MMC_GENERIC #define CONFIG_SYS_MMC_BASE 0xF0000000 #define CONFIG_CMD_FAT #define CONFIG_CMD_EXT2 diff --git a/include/configs/pxa255_idp.h b/include/configs/pxa255_idp.h index 24c5363..5a15af6 100644 --- a/include/configs/pxa255_idp.h +++ b/include/configs/pxa255_idp.h @@ -245,7 +245,8 @@ #define RTC 1 /* enable 32KHz osc */ #ifdef CONFIG_MMC -#define CONFIG_PXA_MMC +#define CONFIG_GENERIC_MMC +#define CONFIG_PXA_MMC_GENERIC #define CONFIG_CMD_MMC #define CONFIG_SYS_MMC_BASE 0xF0000000 #endif diff --git a/include/configs/trizepsiv.h b/include/configs/trizepsiv.h index bc69c1e..c1bfe31 100644 --- a/include/configs/trizepsiv.h +++ b/include/configs/trizepsiv.h @@ -170,7 +170,8 @@ #define CONFIG_SYS_CPUSPEED 0x207 /* need to look more closely, I think this is Turbo = 2x, L=91Mhz */ #ifdef CONFIG_MMC -#define CONFIG_PXA_MMC +#define CONFIG_GENERIC_MMC +#define CONFIG_PXA_MMC_GENERIC #define CONFIG_CMD_MMC #define CONFIG_SYS_MMC_BASE 0xF0000000 #endif -- cgit v1.1 From 757bff49ba3159d71ccacabdb68f8309b1eb6613 Mon Sep 17 00:00:00 2001 From: Jaehoon Chung Date: Mon, 15 Oct 2012 19:10:29 +0000 Subject: mmc: dw-mmc: support DesignWare MMC Controller Support the DesginWare MMC Controller. Signed-off-by: Jaehoon Chung Signed-off-by: Kyungmin Park Signed-off-by: Rajeshawari Shinde Signed-off-by: Andy Fleming --- include/dwmmc.h | 191 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 191 insertions(+) create mode 100644 include/dwmmc.h (limited to 'include') diff --git a/include/dwmmc.h b/include/dwmmc.h new file mode 100644 index 0000000..c8b1d40 --- /dev/null +++ b/include/dwmmc.h @@ -0,0 +1,191 @@ +/* + * (C) Copyright 2012 SAMSUNG Electronics + * Jaehoon Chung + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef __DWMMC_HW_H +#define __DWMMC_HW_H + +#include +#include + +#define DWMCI_CTRL 0x000 +#define DWMCI_PWREN 0x004 +#define DWMCI_CLKDIV 0x008 +#define DWMCI_CLKSRC 0x00C +#define DWMCI_CLKENA 0x010 +#define DWMCI_TMOUT 0x014 +#define DWMCI_CTYPE 0x018 +#define DWMCI_BLKSIZ 0x01C +#define DWMCI_BYTCNT 0x020 +#define DWMCI_INTMASK 0x024 +#define DWMCI_CMDARG 0x028 +#define DWMCI_CMD 0x02C +#define DWMCI_RESP0 0x030 +#define DWMCI_RESP1 0x034 +#define DWMCI_RESP2 0x038 +#define DWMCI_RESP3 0x03C +#define DWMCI_MINTSTS 0x040 +#define DWMCI_RINTSTS 0x044 +#define DWMCI_STATUS 0x048 +#define DWMCI_FIFOTH 0x04C +#define DWMCI_CDETECT 0x050 +#define DWMCI_WRTPRT 0x054 +#define DWMCI_GPIO 0x058 +#define DWMCI_TCMCNT 0x05C +#define DWMCI_TBBCNT 0x060 +#define DWMCI_DEBNCE 0x064 +#define DWMCI_USRID 0x068 +#define DWMCI_VERID 0x06C +#define DWMCI_HCON 0x070 +#define DWMCI_UHS_REG 0x074 +#define DWMCI_BMOD 0x080 +#define DWMCI_PLDMND 0x084 +#define DWMCI_DBADDR 0x088 +#define DWMCI_IDSTS 0x08C +#define DWMCI_IDINTEN 0x090 +#define DWMCI_DSCADDR 0x094 +#define DWMCI_BUFADDR 0x098 +#define DWMCI_DATA 0x200 + +/* Interrupt Mask register */ +#define DWMCI_INTMSK_ALL 0xffffffff +#define DWMCI_INTMSK_RE (1 << 1) +#define DWMCI_INTMSK_CDONE (1 << 2) +#define DWMCI_INTMSK_DTO (1 << 3) +#define DWMCI_INTMSK_TXDR (1 << 4) +#define DWMCI_INTMSK_RXDR (1 << 5) +#define DWMCI_INTMSK_DCRC (1 << 7) +#define DWMCI_INTMSK_RTO (1 << 8) +#define DWMCI_INTMSK_DRTO (1 << 9) +#define DWMCI_INTMSK_HTO (1 << 10) +#define DWMCI_INTMSK_FRUN (1 << 11) +#define DWMCI_INTMSK_HLE (1 << 12) +#define DWMCI_INTMSK_SBE (1 << 13) +#define DWMCI_INTMSK_ACD (1 << 14) +#define DWMCI_INTMSK_EBE (1 << 15) + +/* Raw interrupt Regsiter */ +#define DWMCI_DATA_ERR (DWMCI_INTMSK_EBE | DWMCI_INTMSK_SBE | DWMCI_INTMSK_HLE |\ + DWMCI_INTMSK_FRUN | DWMCI_INTMSK_EBE | DWMCI_INTMSK_DCRC) +#define DWMCI_DATA_TOUT (DWMCI_INTMSK_HTO | DWMCI_INTMSK_DRTO) +/* CTRL register */ +#define DWMCI_CTRL_RESET (1 << 0) +#define DWMCI_CTRL_FIFO_RESET (1 << 1) +#define DWMCI_CTRL_DMA_RESET (1 << 2) +#define DWMCI_DMA_EN (1 << 5) +#define DWMCI_CTRL_SEND_AS_CCSD (1 << 10) +#define DWMCI_IDMAC_EN (1 << 25) +#define DWMCI_RESET_ALL (DWMCI_CTRL_RESET | DWMCI_CTRL_FIFO_RESET |\ + DWMCI_CTRL_DMA_RESET) + +/* CMD register */ +#define DWMCI_CMD_RESP_EXP (1 << 6) +#define DWMCI_CMD_RESP_LENGTH (1 << 7) +#define DWMCI_CMD_CHECK_CRC (1 << 8) +#define DWMCI_CMD_DATA_EXP (1 << 9) +#define DWMCI_CMD_RW (1 << 10) +#define DWMCI_CMD_SEND_STOP (1 << 12) +#define DWMCI_CMD_ABORT_STOP (1 << 14) +#define DWMCI_CMD_PRV_DAT_WAIT (1 << 13) +#define DWMCI_CMD_UPD_CLK (1 << 21) +#define DWMCI_CMD_USE_HOLD_REG (1 << 29) +#define DWMCI_CMD_START (1 << 31) + +/* CLKENA register */ +#define DWMCI_CLKEN_ENABLE (1 << 0) +#define DWMCI_CLKEN_LOW_PWR (1 << 16) + +/* Card-type registe */ +#define DWMCI_CTYPE_1BIT 0 +#define DWMCI_CTYPE_4BIT (1 << 0) +#define DWMCI_CTYPE_8BIT (1 << 16) + +/* Status Register */ +#define DWMCI_BUSY (1 << 9) + +/* FIFOTH Register */ +#define MSIZE(x) ((x) << 28) +#define RX_WMARK(x) ((x) << 16) +#define TX_WMARK(x) (x) + +#define DWMCI_IDMAC_OWN (1 << 31) +#define DWMCI_IDMAC_CH (1 << 4) +#define DWMCI_IDMAC_FS (1 << 3) +#define DWMCI_IDMAC_LD (1 << 2) + +/* Bus Mode Register */ +#define DWMCI_BMOD_IDMAC_RESET (1 << 0) +#define DWMCI_BMOD_IDMAC_FB (1 << 1) +#define DWMCI_BMOD_IDMAC_EN (1 << 7) + +struct dwmci_host { + char *name; + void *ioaddr; + unsigned int quirks; + unsigned int caps; + unsigned int version; + unsigned int clock; + unsigned int bus_hz; + int dev_index; + int buswidth; + u32 fifoth_val; + struct mmc *mmc; + + void (*clksel)(struct dwmci_host *host); + unsigned int (*mmc_clk)(int dev_index); +}; + +struct dwmci_idmac { + u32 flags; + u32 cnt; + u32 addr; + u32 next_addr; +}; + +static inline void dwmci_writel(struct dwmci_host *host, int reg, u32 val) +{ + writel(val, host->ioaddr + reg); +} + +static inline void dwmci_writew(struct dwmci_host *host, int reg, u16 val) +{ + writew(val, host->ioaddr + reg); +} + +static inline void dwmci_writeb(struct dwmci_host *host, int reg, u8 val) +{ + writeb(val, host->ioaddr + reg); +} +static inline u32 dwmci_readl(struct dwmci_host *host, int reg) +{ + return readl(host->ioaddr + reg); +} + +static inline u16 dwmci_readw(struct dwmci_host *host, int reg) +{ + return readw(host->ioaddr + reg); +} + +static inline u8 dwmci_readb(struct dwmci_host *host, int reg) +{ + return readb(host->ioaddr + reg); +} + +int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk); +#endif /* __DWMMC_HW_H */ -- cgit v1.1