[U-Boot-Users] "1.at45":(1 of 4) [PATCH] [ARM] Merge to two files into a common file and split.
Ladislav Michl
ladis at linux-mips.org
Mon Jun 4 14:17:33 CEST 2007
On Tue, Mar 27, 2007 at 06:10:50PM +0200, Ulf Samuelsson wrote:
> Author: Ulf Samuelsson <ulf at atmel.com>
> Date: 2007-03-27
> Subject: "1.at45":(1 of 4) [PATCH] [ARM] Merge to two files into a common file and split.
>
> CHANGELOG:
> [PATCH] [ARM] Merge to two files into a common file and split.
>
> Merge to two virtually identical files.
> "board/at91rm9200dk/at45.c"
> "board/cmc_pu2/at45.c" (one bug fixed first)
> into "driver/at45.c" then move at91rm9200 specific functions from
> "driver/at45.c" to: "cpu/arm920t/at91rm9200/spi.c
> Update Makefiles to reflect change
Here it goes again. Splitted into two patches for easier review. Second
one only removes board/cmc_pu2/at45.c
Signed-off-by: Ulf Samuelsson <ulf at atmel.com>
Signed-off-by: Ladislav Michl <ladis at linux-mips.org>
Consolidate AT45 dataflash driver.
commit 6aaa86b68e3f5307eeaa827ba3ee91dd1ed8477f
tree 9ba9d27cccdcbf743e8b3cc45b02adf14766daa3
parent 70124c2602ae2d4c5d3dba05b482d91548242de8
author Ladislav Michl <ladis at linux-mips.org> Wed, 23 May 2007 16:02:07 +0200
committer Ladislav Michl <ladis at linux-mips.org> Wed, 23 May 2007 16:02:07 +0200
board/at91rm9200dk/Makefile | 2
board/cmc_pu2/Makefile | 2
cpu/arm920t/at91rm9200/Makefile | 2
cpu/arm920t/at91rm9200/spi.c | 137 +++++++++
drivers/Makefile | 2
drivers/at45.c | 109 -------
include/at45.h | 89 ++++++
7 files changed, 231 insertions(+), 112 deletions(-)
diff --git a/board/at91rm9200dk/Makefile b/board/at91rm9200dk/Makefile
index 0fcafd9..99a959f 100644
--- a/board/at91rm9200dk/Makefile
+++ b/board/at91rm9200dk/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := at91rm9200dk.o at45.o flash.o
+COBJS := at91rm9200dk.o flash.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/cmc_pu2/Makefile b/board/cmc_pu2/Makefile
index d445f28..f7a1360 100644
--- a/board/cmc_pu2/Makefile
+++ b/board/cmc_pu2/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := cmc_pu2.o at45.o flash.o load_sernum_ethaddr.o
+COBJS := cmc_pu2.o flash.o load_sernum_ethaddr.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/cpu/arm920t/at91rm9200/Makefile b/cpu/arm920t/at91rm9200/Makefile
index 8d4e478..a7f306b 100644
--- a/cpu/arm920t/at91rm9200/Makefile
+++ b/cpu/arm920t/at91rm9200/Makefile
@@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(SOC).a
COBJS = bcm5221.o dm9161.o ether.o i2c.o interrupts.o \
- lxt972.o serial.o usb_ohci.o
+ lxt972.o serial.o usb_ohci.o spi.o
SOBJS = lowlevel_init.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/cpu/arm920t/at91rm9200/spi.c b/cpu/arm920t/at91rm9200/spi.c
new file mode 100644
index 0000000..66cb14b
--- /dev/null
+++ b/cpu/arm920t/at91rm9200/spi.c
@@ -0,0 +1,137 @@
+/* Driver for ATMEL DataFlash support
+ * Author : Hamid Ikdoumi (Atmel)
+ *
+ * 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
+ *
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/hardware.h>
+
+#ifdef CONFIG_HAS_DATAFLASH
+#include <dataflash.h>
+
+#define AT91C_SPI_CLK 10000000 /* Max Value = 10MHz to be compliant to
+the Continuous Array Read function */
+
+/* AC Characteristics */
+/* DLYBS = tCSS = 250ns min and DLYBCT = tCSH = 250ns */
+#define DATAFLASH_TCSS (0xC << 16)
+#define DATAFLASH_TCHS (0x1 << 24)
+
+#define AT91C_TIMEOUT_WRDY 200000
+#define AT91C_SPI_PCS0_SERIAL_DATAFLASH 0xE /* Chip Select 0 : NPCS0 %1110 */
+#define AT91C_SPI_PCS3_DATAFLASH_CARD 0x7 /* Chip Select 3 : NPCS3 %0111 */
+
+void AT91F_SpiInit(void) {
+
+/*-------------------------------------------------------------------*/
+/* SPI DataFlash Init */
+/*-------------------------------------------------------------------*/
+ /* Configure PIOs */
+ AT91C_BASE_PIOA->PIO_ASR = AT91C_PA3_NPCS0 | AT91C_PA4_NPCS1 | AT91C_PA1_MOSI | AT91C_PA5_NPCS2 |
+ AT91C_PA6_NPCS3 | AT91C_PA0_MISO | AT91C_PA2_SPCK;
+ AT91C_BASE_PIOA->PIO_PDR = AT91C_PA3_NPCS0 | AT91C_PA4_NPCS1 | AT91C_PA1_MOSI | AT91C_PA5_NPCS2 |
+ AT91C_PA6_NPCS3 | AT91C_PA0_MISO | AT91C_PA2_SPCK;
+ /* Enable CLock */
+ AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SPI;
+
+ /* Reset the SPI */
+ AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST;
+
+ /* Configure SPI in Master Mode with No CS selected !!! */
+ AT91C_BASE_SPI->SPI_MR = AT91C_SPI_MSTR | AT91C_SPI_MODFDIS | AT91C_SPI_PCS;
+
+ /* Configure CS0 and CS3 */
+ *(AT91C_SPI_CSR + 0) = AT91C_SPI_CPOL | (AT91C_SPI_DLYBS & DATAFLASH_TCSS) | (AT91C_SPI_DLYBCT &
+ DATAFLASH_TCHS) | ((AT91C_MASTER_CLOCK / (2*AT91C_SPI_CLK)) << 8);
+
+ *(AT91C_SPI_CSR + 3) = AT91C_SPI_CPOL | (AT91C_SPI_DLYBS & DATAFLASH_TCSS) | (AT91C_SPI_DLYBCT &
+ DATAFLASH_TCHS) | ((AT91C_MASTER_CLOCK / (2*AT91C_SPI_CLK)) << 8);
+
+}
+
+void AT91F_SpiEnable(int cs) {
+ switch(cs) {
+ case 0: /* Configure SPI CS0 for Serial DataFlash AT45DBxx */
+ AT91C_BASE_SPI->SPI_MR &= 0xFFF0FFFF;
+ AT91C_BASE_SPI->SPI_MR |= ((AT91C_SPI_PCS0_SERIAL_DATAFLASH<<16) & AT91C_SPI_PCS);
+ break;
+ case 3: /* Configure SPI CS3 for Serial DataFlash Card */
+ /* Set up PIO SDC_TYPE to switch on DataFlash Card and not MMC/SDCard */
+ AT91C_BASE_PIOB->PIO_PER = AT91C_PIO_PB7; /* Set in PIO mode */
+ AT91C_BASE_PIOB->PIO_OER = AT91C_PIO_PB7; /* Configure in output */
+ /* Clear Output */
+ AT91C_BASE_PIOB->PIO_CODR = AT91C_PIO_PB7;
+ /* Configure PCS */
+ AT91C_BASE_SPI->SPI_MR &= 0xFFF0FFFF;
+ AT91C_BASE_SPI->SPI_MR |= ((AT91C_SPI_PCS3_DATAFLASH_CARD<<16) & AT91C_SPI_PCS);
+ break;
+ }
+
+ /* SPI_Enable */
+ AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SPIEN;
+}
+
+/*----------------------------------------------------------------------------*/
+/* \fn AT91F_SpiWrite */
+/* \brief Set the PDC registers for a transfert */
+/*----------------------------------------------------------------------------*/
+unsigned int AT91F_SpiWrite ( AT91PS_DataflashDesc pDesc )
+{
+ unsigned int timeout;
+
+ pDesc->state = BUSY;
+
+ AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS;
+
+ /* Initialize the Transmit and Receive Pointer */
+ AT91C_BASE_SPI->SPI_RPR = (unsigned int)pDesc->rx_cmd_pt ;
+ AT91C_BASE_SPI->SPI_TPR = (unsigned int)pDesc->tx_cmd_pt ;
+
+ /* Intialize the Transmit and Receive Counters */
+ AT91C_BASE_SPI->SPI_RCR = pDesc->rx_cmd_size;
+ AT91C_BASE_SPI->SPI_TCR = pDesc->tx_cmd_size;
+
+ if ( pDesc->tx_data_size != 0 ) {
+ /* Initialize the Next Transmit and Next Receive Pointer */
+ AT91C_BASE_SPI->SPI_RNPR = (unsigned int)pDesc->rx_data_pt ;
+ AT91C_BASE_SPI->SPI_TNPR = (unsigned int)pDesc->tx_data_pt ;
+
+ /* Intialize the Next Transmit and Next Receive Counters */
+ AT91C_BASE_SPI->SPI_RNCR = pDesc->rx_data_size ;
+ AT91C_BASE_SPI->SPI_TNCR = pDesc->tx_data_size ;
+ }
+
+ /* arm simple, non interrupt dependent timer */
+ reset_timer_masked();
+ timeout = 0;
+
+ AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTEN + AT91C_PDC_RXTEN;
+ while(!(AT91C_BASE_SPI->SPI_SR & AT91C_SPI_RXBUFF) && ((timeout = get_timer_masked() ) < CFG_SPI_WRITE_TOUT));
+ AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS;
+ pDesc->state = IDLE;
+
+ if (timeout >= CFG_SPI_WRITE_TOUT){
+ printf("Error Timeout\n\r");
+ return DATAFLASH_ERROR;
+ }
+
+ return DATAFLASH_OK;
+}
+
+#endif
diff --git a/drivers/Makefile b/drivers/Makefile
index d68cba6..8ae6bce 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -27,7 +27,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)libdrivers.a
-COBJS = 3c589.o 5701rls.o ali512x.o atmel_usart.o \
+COBJS = 3c589.o 5701rls.o ali512x.o at45.o atmel_usart.o \
bcm570x.o bcm570x_autoneg.o cfb_console.o cfi_flash.o \
cs8900.o ct69000.o dataflash.o dc2114x.o dm9000x.o \
e1000.o eepro100.o \
diff --git a/board/at91rm9200dk/at45.c b/drivers/at45.c
similarity index 83%
rename from board/at91rm9200dk/at45.c
rename to drivers/at45.c
index f886fe4..711fb51 100644
--- a/board/at91rm9200dk/at45.c
+++ b/drivers/at45.c
@@ -20,119 +20,12 @@
#include <config.h>
#include <common.h>
-#include <asm/hardware.h>
#ifdef CONFIG_HAS_DATAFLASH
#include <dataflash.h>
-#define AT91C_SPI_CLK 10000000 /* Max Value = 10MHz to be compliant to
-the Continuous Array Read function */
-
-/* AC Characteristics */
-/* DLYBS = tCSS = 250ns min and DLYBCT = tCSH = 250ns */
-#define DATAFLASH_TCSS (0xC << 16)
-#define DATAFLASH_TCHS (0x1 << 24)
#define AT91C_TIMEOUT_WRDY 200000
-#define AT91C_SPI_PCS0_SERIAL_DATAFLASH 0xE /* Chip Select 0 : NPCS0 %1110 */
-#define AT91C_SPI_PCS3_DATAFLASH_CARD 0x7 /* Chip Select 3 : NPCS3 %0111 */
-
-void AT91F_SpiInit(void) {
-
-/*-------------------------------------------------------------------*/
-/* SPI DataFlash Init */
-/*-------------------------------------------------------------------*/
- /* Configure PIOs */
- AT91C_BASE_PIOA->PIO_ASR = AT91C_PA3_NPCS0 | AT91C_PA4_NPCS1 | AT91C_PA1_MOSI | AT91C_PA5_NPCS2 |
- AT91C_PA6_NPCS3 | AT91C_PA0_MISO | AT91C_PA2_SPCK;
- AT91C_BASE_PIOA->PIO_PDR = AT91C_PA3_NPCS0 | AT91C_PA4_NPCS1 | AT91C_PA1_MOSI | AT91C_PA5_NPCS2 |
- AT91C_PA6_NPCS3 | AT91C_PA0_MISO | AT91C_PA2_SPCK;
- /* Enable CLock */
- AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SPI;
-
- /* Reset the SPI */
- AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST;
-
- /* Configure SPI in Master Mode with No CS selected !!! */
- AT91C_BASE_SPI->SPI_MR = AT91C_SPI_MSTR | AT91C_SPI_MODFDIS | AT91C_SPI_PCS;
-
- /* Configure CS0 and CS3 */
- *(AT91C_SPI_CSR + 0) = AT91C_SPI_CPOL | (AT91C_SPI_DLYBS & DATAFLASH_TCSS) | (AT91C_SPI_DLYBCT &
- DATAFLASH_TCHS) | ((AT91C_MASTER_CLOCK / (2*AT91C_SPI_CLK)) << 8);
-
- *(AT91C_SPI_CSR + 3) = AT91C_SPI_CPOL | (AT91C_SPI_DLYBS & DATAFLASH_TCSS) | (AT91C_SPI_DLYBCT &
- DATAFLASH_TCHS) | ((AT91C_MASTER_CLOCK / (2*AT91C_SPI_CLK)) << 8);
-
-}
-
-void AT91F_SpiEnable(int cs) {
- switch(cs) {
- case 0: /* Configure SPI CS0 for Serial DataFlash AT45DBxx */
- AT91C_BASE_SPI->SPI_MR &= 0xFFF0FFFF;
- AT91C_BASE_SPI->SPI_MR |= ((AT91C_SPI_PCS0_SERIAL_DATAFLASH<<16) & AT91C_SPI_PCS);
- break;
- case 3: /* Configure SPI CS3 for Serial DataFlash Card */
- /* Set up PIO SDC_TYPE to switch on DataFlash Card and not MMC/SDCard */
- AT91C_BASE_PIOB->PIO_PER = AT91C_PIO_PB7; /* Set in PIO mode */
- AT91C_BASE_PIOB->PIO_OER = AT91C_PIO_PB7; /* Configure in output */
- /* Clear Output */
- AT91C_BASE_PIOB->PIO_CODR = AT91C_PIO_PB7;
- /* Configure PCS */
- AT91C_BASE_SPI->SPI_MR &= 0xFFF0FFFF;
- AT91C_BASE_SPI->SPI_MR |= ((AT91C_SPI_PCS3_DATAFLASH_CARD<<16) & AT91C_SPI_PCS);
- break;
- }
-
- /* SPI_Enable */
- AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SPIEN;
-}
-
-/*----------------------------------------------------------------------------*/
-/* \fn AT91F_SpiWrite */
-/* \brief Set the PDC registers for a transfert */
-/*----------------------------------------------------------------------------*/
-unsigned int AT91F_SpiWrite ( AT91PS_DataflashDesc pDesc )
-{
- unsigned int timeout;
-
- pDesc->state = BUSY;
-
- AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS;
-
- /* Initialize the Transmit and Receive Pointer */
- AT91C_BASE_SPI->SPI_RPR = (unsigned int)pDesc->rx_cmd_pt ;
- AT91C_BASE_SPI->SPI_TPR = (unsigned int)pDesc->tx_cmd_pt ;
-
- /* Intialize the Transmit and Receive Counters */
- AT91C_BASE_SPI->SPI_RCR = pDesc->rx_cmd_size;
- AT91C_BASE_SPI->SPI_TCR = pDesc->tx_cmd_size;
-
- if ( pDesc->tx_data_size != 0 ) {
- /* Initialize the Next Transmit and Next Receive Pointer */
- AT91C_BASE_SPI->SPI_RNPR = (unsigned int)pDesc->rx_data_pt ;
- AT91C_BASE_SPI->SPI_TNPR = (unsigned int)pDesc->tx_data_pt ;
-
- /* Intialize the Next Transmit and Next Receive Counters */
- AT91C_BASE_SPI->SPI_RNCR = pDesc->rx_data_size ;
- AT91C_BASE_SPI->SPI_TNCR = pDesc->tx_data_size ;
- }
-
- /* arm simple, non interrupt dependent timer */
- reset_timer_masked();
- timeout = 0;
-
- AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTEN + AT91C_PDC_RXTEN;
- while(!(AT91C_BASE_SPI->SPI_SR & AT91C_SPI_RXBUFF) && ((timeout = get_timer_masked() ) < CFG_SPI_WRITE_TOUT));
- AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS;
- pDesc->state = IDLE;
-
- if (timeout >= CFG_SPI_WRITE_TOUT){
- printf("Error Timeout\n\r");
- return DATAFLASH_ERROR;
- }
-
- return DATAFLASH_OK;
-}
/*----------------------------------------------------------------------*/
@@ -593,7 +486,7 @@ int AT91F_DataFlashRead(
if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
return -1;
- if (AT91F_DataFlashContinuousRead (pDataFlash, addr, (uchar *)buffer, SizeToRead) != DATAFLASH_OK)
+ if (AT91F_DataFlashContinuousRead (pDataFlash, addr, (uchar *) buffer, SizeToRead) != DATAFLASH_OK)
return -1;
size -= SizeToRead;
diff --git a/include/at45.h b/include/at45.h
new file mode 100644
index 0000000..67fa7ca
--- /dev/null
+++ b/include/at45.h
@@ -0,0 +1,89 @@
+/*
+ * (C) Copyright 2007
+ * Hamid Ikdoumi, Atmel
+ *
+ * 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 _AT45_H_
+#define _AT45_H_
+
+#ifdef DATAFLASH_MMC_SELECT
+extern void AT91F_SelectMMC(void);
+extern void AT91F_SelectSPI(void);
+extern int AT91F_GetMuxStatus(void);
+#endif
+extern void AT91F_SpiInit(void);
+extern void AT91F_SpiEnable(int cs);
+extern unsigned int AT91F_SpiWrite ( AT91PS_DataflashDesc pDesc );
+extern AT91S_DataFlashStatus AT91F_DataFlashSendCommand(
+ AT91PS_DataFlash pDataFlash,
+ unsigned char OpCode,
+ unsigned int CmdSize,
+ unsigned int DataflashAddress);
+extern AT91S_DataFlashStatus AT91F_DataFlashGetStatus(AT91PS_DataflashDesc pDesc);
+extern AT91S_DataFlashStatus AT91F_DataFlashWaitReady(AT91PS_DataflashDesc pDataFlashDesc, unsigned int timeout);
+extern AT91S_DataFlashStatus AT91F_DataFlashContinuousRead (
+ AT91PS_DataFlash pDataFlash,
+ int src,
+ unsigned char *dataBuffer,
+ int sizeToRead );
+extern AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(
+ AT91PS_DataFlash pDataFlash,
+ unsigned char *src,
+ unsigned int dest,
+ unsigned int SizeToWrite);
+extern AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(
+ AT91PS_DataFlash pDataFlash,
+ unsigned char BufferCommand,
+ unsigned int page);
+extern AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer (
+ AT91PS_DataFlash pDataFlash,
+ unsigned char BufferCommand,
+ unsigned char *dataBuffer,
+ unsigned int bufferAddress,
+ int SizeToWrite );
+extern AT91S_DataFlashStatus AT91F_PageErase(
+ AT91PS_DataFlash pDataFlash,
+ unsigned int page);
+extern AT91S_DataFlashStatus AT91F_BlockErase(
+ AT91PS_DataFlash pDataFlash,
+ unsigned int block);
+extern AT91S_DataFlashStatus AT91F_WriteBufferToMain (
+ AT91PS_DataFlash pDataFlash,
+ unsigned char BufferCommand,
+ unsigned int dest );
+extern AT91S_DataFlashStatus AT91F_PartialPageWrite (
+ AT91PS_DataFlash pDataFlash,
+ unsigned char *src,
+ unsigned int dest,
+ unsigned int size);
+extern AT91S_DataFlashStatus AT91F_DataFlashWrite(
+ AT91PS_DataFlash pDataFlash,
+ unsigned char *src,
+ int dest,
+ int size );
+extern int AT91F_DataFlashRead(
+ AT91PS_DataFlash pDataFlash,
+ unsigned long addr,
+ unsigned long size,
+ char *buffer);
+extern int AT91F_DataflashProbe(int cs, AT91PS_DataflashDesc pDesc);
+
+#endif
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