* [U-Boot] [PATCH 1/2] ATMEL: use generic mmc framework
2011-10-21 12:49 [U-Boot] [PATCH v2] ATMEL: switch atmel_mci users to gen_atmel_mci Sven Schnelle
@ 2011-10-21 12:49 ` Sven Schnelle
2012-03-10 11:26 ` Andreas Bießmann
2011-10-21 12:49 ` [U-Boot] [PATCH 2/2] ATMEL: remove old atmel_mci driver Sven Schnelle
1 sibling, 1 reply; 7+ messages in thread
From: Sven Schnelle @ 2011-10-21 12:49 UTC (permalink / raw)
To: u-boot
gen_atmel_mci works on AVR32 as well, so no need to use the legacy
mmc driver. This also has the nice side effect of being able to use
SDHC cards an those boards.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
---
arch/avr32/lib/board.c | 6 +
board/atmel/atngw100/atngw100.c | 10 ++
board/atmel/atstk1000/atstk1000.c | 10 ++
drivers/mmc/atmel_mci.h | 245 ------------------------------------
include/atmel_mci.h | 247 +++++++++++++++++++++++++++++++++++++
include/configs/atngw100.h | 4 +-
include/configs/atstk1002.h | 4 +-
include/configs/atstk1003.h | 3 +-
include/configs/atstk1004.h | 4 +-
include/configs/atstk1006.h | 4 +-
include/configs/favr-32-ezkit.h | 3 +-
include/configs/hammerhead.h | 3 +-
include/configs/mimc200.h | 3 +-
include/mmc.h | 1 -
14 files changed, 293 insertions(+), 254 deletions(-)
delete mode 100644 drivers/mmc/atmel_mci.h
create mode 100644 include/atmel_mci.h
diff --git a/arch/avr32/lib/board.c b/arch/avr32/lib/board.c
index 3e1cc0d..3c18abe 100644
--- a/arch/avr32/lib/board.c
+++ b/arch/avr32/lib/board.c
@@ -37,6 +37,9 @@
#define CONFIG_IDENT_STRING ""
#endif
+#ifdef CONFIG_ATMEL_MCI
+#include <mmc.h>
+#endif
DECLARE_GLOBAL_DATA_PTR;
unsigned long monitor_flash_len;
@@ -334,6 +337,9 @@ void board_init_r(gd_t *new_gd, ulong dest_addr)
eth_initialize(gd->bd);
#endif
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+ mmc_initialize(gd->bd);
+#endif
for (;;) {
main_loop();
}
diff --git a/board/atmel/atngw100/atngw100.c b/board/atmel/atngw100/atngw100.c
index 59577b8..9461206 100644
--- a/board/atmel/atngw100/atngw100.c
+++ b/board/atmel/atngw100/atngw100.c
@@ -29,6 +29,7 @@
#include <asm/arch/mmu.h>
#include <asm/arch/portmux.h>
#include <netdev.h>
+#include <atmel_mci.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -139,3 +140,12 @@ void spi_cs_deactivate(struct spi_slave *slave)
gpio_set_value(ATNGW100_DATAFLASH_CS_PIN, 1);
}
#endif /* CONFIG_ATMEL_SPI */
+
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+int board_mmc_init(bd_t *bd)
+{
+ /* This calls the atmel_mci_init in gen_atmel_mci.c */
+ return atmel_mci_init((void *)ATMEL_BASE_MMCI);
+
+}
+#endif
diff --git a/board/atmel/atstk1000/atstk1000.c b/board/atmel/atstk1000/atstk1000.c
index 58048a4..d294a4d 100644
--- a/board/atmel/atstk1000/atstk1000.c
+++ b/board/atmel/atstk1000/atstk1000.c
@@ -28,6 +28,7 @@
#include <asm/arch/mmu.h>
#include <asm/arch/portmux.h>
#include <netdev.h>
+#include <atmel_mci.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -139,3 +140,12 @@ int board_eth_init(bd_t *bi)
return 0;
}
#endif
+
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+int board_mmc_init(bd_t *bd)
+{
+ /* This calls the atmel_mci_init in gen_atmel_mci.c */
+ return atmel_mci_init((void *)ATMEL_BASE_MMCI);
+
+}
+#endif
diff --git a/drivers/mmc/atmel_mci.h b/drivers/mmc/atmel_mci.h
deleted file mode 100644
index 90ab6a8..0000000
--- a/drivers/mmc/atmel_mci.h
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- * Copyright (C) 2005-2006 Atmel Corporation
- *
- * 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 __CPU_AT32AP_ATMEL_MCI_H__
-#define __CPU_AT32AP_ATMEL_MCI_H__
-
-#ifndef __ASSEMBLY__
-
-/*
- * Structure for struct SoC access.
- * Names starting with '_' are fillers.
- */
-typedef struct atmel_mci {
- /* reg Offset */
- u32 cr; /* 0x00 */
- u32 mr; /* 0x04 */
- u32 dtor; /* 0x08 */
- u32 sdcr; /* 0x0c */
- u32 argr; /* 0x10 */
- u32 cmdr; /* 0x14 */
- u32 _18; /* 0x18 */
- u32 _1c; /* 0x1c */
- u32 rspr; /* 0x20 */
- u32 rspr1; /* 0x24 */
- u32 rspr2; /* 0x28 */
- u32 rspr3; /* 0x2c */
- u32 rdr; /* 0x30 */
- u32 tdr; /* 0x34 */
- u32 _38; /* 0x38 */
- u32 _3c; /* 0x3c */
- u32 sr; /* 0x40 */
- u32 ier; /* 0x44 */
- u32 idr; /* 0x48 */
- u32 imr; /* 0x4c */
-} atmel_mci_t;
-
-#endif /* __ASSEMBLY__ */
-
-/*
- * NOTICE: Use of registers offsets is depreciated.
- * These defines will be removed once the old driver
- * is taken out of commision.
- *
- * Atmel MultiMedia Card Interface (MCI) registers
- */
-#define MMCI_CR 0x0000
-#define MMCI_MR 0x0004
-#define MMCI_DTOR 0x0008
-#define MMCI_SDCR 0x000c
-#define MMCI_ARGR 0x0010
-#define MMCI_CMDR 0x0014
-#define MMCI_RSPR 0x0020
-#define MMCI_RSPR1 0x0024
-#define MMCI_RSPR2 0x0028
-#define MMCI_RSPR3 0x002c
-#define MMCI_RDR 0x0030
-#define MMCI_TDR 0x0034
-#define MMCI_SR 0x0040
-#define MMCI_IER 0x0044
-#define MMCI_IDR 0x0048
-#define MMCI_IMR 0x004c
-
-/* Bitfields in CR */
-#define MMCI_MCIEN_OFFSET 0
-#define MMCI_MCIEN_SIZE 1
-#define MMCI_MCIDIS_OFFSET 1
-#define MMCI_MCIDIS_SIZE 1
-#define MMCI_PWSEN_OFFSET 2
-#define MMCI_PWSEN_SIZE 1
-#define MMCI_PWSDIS_OFFSET 3
-#define MMCI_PWSDIS_SIZE 1
-#define MMCI_SWRST_OFFSET 7
-#define MMCI_SWRST_SIZE 1
-
-/* Bitfields in MR */
-#define MMCI_CLKDIV_OFFSET 0
-#define MMCI_CLKDIV_SIZE 8
-#define MMCI_PWSDIV_OFFSET 8
-#define MMCI_PWSDIV_SIZE 3
-#define MMCI_RDPROOF_OFFSET 11
-#define MMCI_RDPROOF_SIZE 1
-#define MMCI_WRPROOF_OFFSET 12
-#define MMCI_WRPROOF_SIZE 1
-#define MMCI_PDCPADV_OFFSET 14
-#define MMCI_PDCPADV_SIZE 1
-#define MMCI_PDCMODE_OFFSET 15
-#define MMCI_PDCMODE_SIZE 1
-#define MMCI_BLKLEN_OFFSET 16
-#define MMCI_BLKLEN_SIZE 16
-
-/* Bitfields in DTOR */
-#define MMCI_DTOCYC_OFFSET 0
-#define MMCI_DTOCYC_SIZE 4
-#define MMCI_DTOMUL_OFFSET 4
-#define MMCI_DTOMUL_SIZE 3
-
-/* Bitfields in SDCR */
-#define MMCI_SCDSEL_OFFSET 0
-#define MMCI_SCDSEL_SIZE 4
-#define MMCI_SCDBUS_OFFSET 7
-#define MMCI_SCDBUS_SIZE 1
-
-/* Bitfields in ARGR */
-#define MMCI_ARG_OFFSET 0
-#define MMCI_ARG_SIZE 32
-
-/* Bitfields in CMDR */
-#define MMCI_CMDNB_OFFSET 0
-#define MMCI_CMDNB_SIZE 6
-#define MMCI_RSPTYP_OFFSET 6
-#define MMCI_RSPTYP_SIZE 2
-#define MMCI_SPCMD_OFFSET 8
-#define MMCI_SPCMD_SIZE 3
-#define MMCI_OPDCMD_OFFSET 11
-#define MMCI_OPDCMD_SIZE 1
-#define MMCI_MAXLAT_OFFSET 12
-#define MMCI_MAXLAT_SIZE 1
-#define MMCI_TRCMD_OFFSET 16
-#define MMCI_TRCMD_SIZE 2
-#define MMCI_TRDIR_OFFSET 18
-#define MMCI_TRDIR_SIZE 1
-#define MMCI_TRTYP_OFFSET 19
-#define MMCI_TRTYP_SIZE 2
-
-/* Bitfields in RSPRx */
-#define MMCI_RSP_OFFSET 0
-#define MMCI_RSP_SIZE 32
-
-/* Bitfields in SR/IER/IDR/IMR */
-#define MMCI_CMDRDY_OFFSET 0
-#define MMCI_CMDRDY_SIZE 1
-#define MMCI_RXRDY_OFFSET 1
-#define MMCI_RXRDY_SIZE 1
-#define MMCI_TXRDY_OFFSET 2
-#define MMCI_TXRDY_SIZE 1
-#define MMCI_BLKE_OFFSET 3
-#define MMCI_BLKE_SIZE 1
-#define MMCI_DTIP_OFFSET 4
-#define MMCI_DTIP_SIZE 1
-#define MMCI_NOTBUSY_OFFSET 5
-#define MMCI_NOTBUSY_SIZE 1
-#define MMCI_ENDRX_OFFSET 6
-#define MMCI_ENDRX_SIZE 1
-#define MMCI_ENDTX_OFFSET 7
-#define MMCI_ENDTX_SIZE 1
-#define MMCI_RXBUFF_OFFSET 14
-#define MMCI_RXBUFF_SIZE 1
-#define MMCI_TXBUFE_OFFSET 15
-#define MMCI_TXBUFE_SIZE 1
-#define MMCI_RINDE_OFFSET 16
-#define MMCI_RINDE_SIZE 1
-#define MMCI_RDIRE_OFFSET 17
-#define MMCI_RDIRE_SIZE 1
-#define MMCI_RCRCE_OFFSET 18
-#define MMCI_RCRCE_SIZE 1
-#define MMCI_RENDE_OFFSET 19
-#define MMCI_RENDE_SIZE 1
-#define MMCI_RTOE_OFFSET 20
-#define MMCI_RTOE_SIZE 1
-#define MMCI_DCRCE_OFFSET 21
-#define MMCI_DCRCE_SIZE 1
-#define MMCI_DTOE_OFFSET 22
-#define MMCI_DTOE_SIZE 1
-#define MMCI_OVRE_OFFSET 30
-#define MMCI_OVRE_SIZE 1
-#define MMCI_UNRE_OFFSET 31
-#define MMCI_UNRE_SIZE 1
-
-/* Constants for DTOMUL */
-#define MMCI_DTOMUL_1_CYCLE 0
-#define MMCI_DTOMUL_16_CYCLES 1
-#define MMCI_DTOMUL_128_CYCLES 2
-#define MMCI_DTOMUL_256_CYCLES 3
-#define MMCI_DTOMUL_1024_CYCLES 4
-#define MMCI_DTOMUL_4096_CYCLES 5
-#define MMCI_DTOMUL_65536_CYCLES 6
-#define MMCI_DTOMUL_1048576_CYCLES 7
-
-/* Constants for RSPTYP */
-#define MMCI_RSPTYP_NO_RESP 0
-#define MMCI_RSPTYP_48_BIT_RESP 1
-#define MMCI_RSPTYP_136_BIT_RESP 2
-
-/* Constants for SPCMD */
-#define MMCI_SPCMD_NO_SPEC_CMD 0
-#define MMCI_SPCMD_INIT_CMD 1
-#define MMCI_SPCMD_SYNC_CMD 2
-#define MMCI_SPCMD_INT_CMD 4
-#define MMCI_SPCMD_INT_RESP 5
-
-/* Constants for TRCMD */
-#define MMCI_TRCMD_NO_TRANS 0
-#define MMCI_TRCMD_START_TRANS 1
-#define MMCI_TRCMD_STOP_TRANS 2
-
-/* Constants for TRTYP */
-#define MMCI_TRTYP_BLOCK 0
-#define MMCI_TRTYP_MULTI_BLOCK 1
-#define MMCI_TRTYP_STREAM 2
-
-/* Bit manipulation macros */
-#define MMCI_BIT(name) \
- (1 << MMCI_##name##_OFFSET)
-#define MMCI_BF(name,value) \
- (((value) & ((1 << MMCI_##name##_SIZE) - 1)) \
- << MMCI_##name##_OFFSET)
-#define MMCI_BFEXT(name,value) \
- (((value) >> MMCI_##name##_OFFSET)\
- & ((1 << MMCI_##name##_SIZE) - 1))
-#define MMCI_BFINS(name,value,old) \
- (((old) & ~(((1 << MMCI_##name##_SIZE) - 1) \
- << MMCI_##name##_OFFSET)) \
- | MMCI_BF(name,value))
-
-/*
- * NOTICE: Use of registers offsets is depreciated.
- * These defines will be removed once the old driver
- * is taken out of commision.
- *
- * Register access macros
- */
-#define mmci_readl(reg) \
- readl((void *)ATMEL_BASE_MMCI + MMCI_##reg)
-#define mmci_writel(reg,value) \
- writel((value), (void *)ATMEL_BASE_MMCI + MMCI_##reg)
-
-#endif /* __CPU_AT32AP_ATMEL_MCI_H__ */
diff --git a/include/atmel_mci.h b/include/atmel_mci.h
new file mode 100644
index 0000000..0158f97
--- /dev/null
+++ b/include/atmel_mci.h
@@ -0,0 +1,247 @@
+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * 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 __ATMEL_MCI_H__
+#define __ATMEL_MCI_H__
+
+int atmel_mci_init(void *regs);
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Structure for struct SoC access.
+ * Names starting with '_' are fillers.
+ */
+typedef struct atmel_mci {
+ /* reg Offset */
+ u32 cr; /* 0x00 */
+ u32 mr; /* 0x04 */
+ u32 dtor; /* 0x08 */
+ u32 sdcr; /* 0x0c */
+ u32 argr; /* 0x10 */
+ u32 cmdr; /* 0x14 */
+ u32 _18; /* 0x18 */
+ u32 _1c; /* 0x1c */
+ u32 rspr; /* 0x20 */
+ u32 rspr1; /* 0x24 */
+ u32 rspr2; /* 0x28 */
+ u32 rspr3; /* 0x2c */
+ u32 rdr; /* 0x30 */
+ u32 tdr; /* 0x34 */
+ u32 _38; /* 0x38 */
+ u32 _3c; /* 0x3c */
+ u32 sr; /* 0x40 */
+ u32 ier; /* 0x44 */
+ u32 idr; /* 0x48 */
+ u32 imr; /* 0x4c */
+} atmel_mci_t;
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * NOTICE: Use of registers offsets is depreciated.
+ * These defines will be removed once the old driver
+ * is taken out of commision.
+ *
+ * Atmel MultiMedia Card Interface (MCI) registers
+ */
+#define MMCI_CR 0x0000
+#define MMCI_MR 0x0004
+#define MMCI_DTOR 0x0008
+#define MMCI_SDCR 0x000c
+#define MMCI_ARGR 0x0010
+#define MMCI_CMDR 0x0014
+#define MMCI_RSPR 0x0020
+#define MMCI_RSPR1 0x0024
+#define MMCI_RSPR2 0x0028
+#define MMCI_RSPR3 0x002c
+#define MMCI_RDR 0x0030
+#define MMCI_TDR 0x0034
+#define MMCI_SR 0x0040
+#define MMCI_IER 0x0044
+#define MMCI_IDR 0x0048
+#define MMCI_IMR 0x004c
+
+/* Bitfields in CR */
+#define MMCI_MCIEN_OFFSET 0
+#define MMCI_MCIEN_SIZE 1
+#define MMCI_MCIDIS_OFFSET 1
+#define MMCI_MCIDIS_SIZE 1
+#define MMCI_PWSEN_OFFSET 2
+#define MMCI_PWSEN_SIZE 1
+#define MMCI_PWSDIS_OFFSET 3
+#define MMCI_PWSDIS_SIZE 1
+#define MMCI_SWRST_OFFSET 7
+#define MMCI_SWRST_SIZE 1
+
+/* Bitfields in MR */
+#define MMCI_CLKDIV_OFFSET 0
+#define MMCI_CLKDIV_SIZE 8
+#define MMCI_PWSDIV_OFFSET 8
+#define MMCI_PWSDIV_SIZE 3
+#define MMCI_RDPROOF_OFFSET 11
+#define MMCI_RDPROOF_SIZE 1
+#define MMCI_WRPROOF_OFFSET 12
+#define MMCI_WRPROOF_SIZE 1
+#define MMCI_PDCPADV_OFFSET 14
+#define MMCI_PDCPADV_SIZE 1
+#define MMCI_PDCMODE_OFFSET 15
+#define MMCI_PDCMODE_SIZE 1
+#define MMCI_BLKLEN_OFFSET 16
+#define MMCI_BLKLEN_SIZE 16
+
+/* Bitfields in DTOR */
+#define MMCI_DTOCYC_OFFSET 0
+#define MMCI_DTOCYC_SIZE 4
+#define MMCI_DTOMUL_OFFSET 4
+#define MMCI_DTOMUL_SIZE 3
+
+/* Bitfields in SDCR */
+#define MMCI_SCDSEL_OFFSET 0
+#define MMCI_SCDSEL_SIZE 4
+#define MMCI_SCDBUS_OFFSET 7
+#define MMCI_SCDBUS_SIZE 1
+
+/* Bitfields in ARGR */
+#define MMCI_ARG_OFFSET 0
+#define MMCI_ARG_SIZE 32
+
+/* Bitfields in CMDR */
+#define MMCI_CMDNB_OFFSET 0
+#define MMCI_CMDNB_SIZE 6
+#define MMCI_RSPTYP_OFFSET 6
+#define MMCI_RSPTYP_SIZE 2
+#define MMCI_SPCMD_OFFSET 8
+#define MMCI_SPCMD_SIZE 3
+#define MMCI_OPDCMD_OFFSET 11
+#define MMCI_OPDCMD_SIZE 1
+#define MMCI_MAXLAT_OFFSET 12
+#define MMCI_MAXLAT_SIZE 1
+#define MMCI_TRCMD_OFFSET 16
+#define MMCI_TRCMD_SIZE 2
+#define MMCI_TRDIR_OFFSET 18
+#define MMCI_TRDIR_SIZE 1
+#define MMCI_TRTYP_OFFSET 19
+#define MMCI_TRTYP_SIZE 2
+
+/* Bitfields in RSPRx */
+#define MMCI_RSP_OFFSET 0
+#define MMCI_RSP_SIZE 32
+
+/* Bitfields in SR/IER/IDR/IMR */
+#define MMCI_CMDRDY_OFFSET 0
+#define MMCI_CMDRDY_SIZE 1
+#define MMCI_RXRDY_OFFSET 1
+#define MMCI_RXRDY_SIZE 1
+#define MMCI_TXRDY_OFFSET 2
+#define MMCI_TXRDY_SIZE 1
+#define MMCI_BLKE_OFFSET 3
+#define MMCI_BLKE_SIZE 1
+#define MMCI_DTIP_OFFSET 4
+#define MMCI_DTIP_SIZE 1
+#define MMCI_NOTBUSY_OFFSET 5
+#define MMCI_NOTBUSY_SIZE 1
+#define MMCI_ENDRX_OFFSET 6
+#define MMCI_ENDRX_SIZE 1
+#define MMCI_ENDTX_OFFSET 7
+#define MMCI_ENDTX_SIZE 1
+#define MMCI_RXBUFF_OFFSET 14
+#define MMCI_RXBUFF_SIZE 1
+#define MMCI_TXBUFE_OFFSET 15
+#define MMCI_TXBUFE_SIZE 1
+#define MMCI_RINDE_OFFSET 16
+#define MMCI_RINDE_SIZE 1
+#define MMCI_RDIRE_OFFSET 17
+#define MMCI_RDIRE_SIZE 1
+#define MMCI_RCRCE_OFFSET 18
+#define MMCI_RCRCE_SIZE 1
+#define MMCI_RENDE_OFFSET 19
+#define MMCI_RENDE_SIZE 1
+#define MMCI_RTOE_OFFSET 20
+#define MMCI_RTOE_SIZE 1
+#define MMCI_DCRCE_OFFSET 21
+#define MMCI_DCRCE_SIZE 1
+#define MMCI_DTOE_OFFSET 22
+#define MMCI_DTOE_SIZE 1
+#define MMCI_OVRE_OFFSET 30
+#define MMCI_OVRE_SIZE 1
+#define MMCI_UNRE_OFFSET 31
+#define MMCI_UNRE_SIZE 1
+
+/* Constants for DTOMUL */
+#define MMCI_DTOMUL_1_CYCLE 0
+#define MMCI_DTOMUL_16_CYCLES 1
+#define MMCI_DTOMUL_128_CYCLES 2
+#define MMCI_DTOMUL_256_CYCLES 3
+#define MMCI_DTOMUL_1024_CYCLES 4
+#define MMCI_DTOMUL_4096_CYCLES 5
+#define MMCI_DTOMUL_65536_CYCLES 6
+#define MMCI_DTOMUL_1048576_CYCLES 7
+
+/* Constants for RSPTYP */
+#define MMCI_RSPTYP_NO_RESP 0
+#define MMCI_RSPTYP_48_BIT_RESP 1
+#define MMCI_RSPTYP_136_BIT_RESP 2
+
+/* Constants for SPCMD */
+#define MMCI_SPCMD_NO_SPEC_CMD 0
+#define MMCI_SPCMD_INIT_CMD 1
+#define MMCI_SPCMD_SYNC_CMD 2
+#define MMCI_SPCMD_INT_CMD 4
+#define MMCI_SPCMD_INT_RESP 5
+
+/* Constants for TRCMD */
+#define MMCI_TRCMD_NO_TRANS 0
+#define MMCI_TRCMD_START_TRANS 1
+#define MMCI_TRCMD_STOP_TRANS 2
+
+/* Constants for TRTYP */
+#define MMCI_TRTYP_BLOCK 0
+#define MMCI_TRTYP_MULTI_BLOCK 1
+#define MMCI_TRTYP_STREAM 2
+
+/* Bit manipulation macros */
+#define MMCI_BIT(name) \
+ (1 << MMCI_##name##_OFFSET)
+#define MMCI_BF(name,value) \
+ (((value) & ((1 << MMCI_##name##_SIZE) - 1)) \
+ << MMCI_##name##_OFFSET)
+#define MMCI_BFEXT(name,value) \
+ (((value) >> MMCI_##name##_OFFSET)\
+ & ((1 << MMCI_##name##_SIZE) - 1))
+#define MMCI_BFINS(name,value,old) \
+ (((old) & ~(((1 << MMCI_##name##_SIZE) - 1) \
+ << MMCI_##name##_OFFSET)) \
+ | MMCI_BF(name,value))
+
+/*
+ * NOTICE: Use of registers offsets is depreciated.
+ * These defines will be removed once the old driver
+ * is taken out of commision.
+ *
+ * Register access macros
+ */
+#define mmci_readl(reg) \
+ readl((void *)ATMEL_BASE_MMCI + MMCI_##reg)
+#define mmci_writel(reg,value) \
+ writel((value), (void *)ATMEL_BASE_MMCI + MMCI_##reg)
+
+#endif /* __ATMEL_MCI_H__ */
diff --git a/include/configs/atngw100.h b/include/configs/atngw100.h
index 8f9ed23..5e3155d 100644
--- a/include/configs/atngw100.h
+++ b/include/configs/atngw100.h
@@ -128,7 +128,9 @@
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC
#define CONFIG_MMC
-#define CONFIG_ATMEL_MCI
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_GENERIC_MMC
+#define CONFIG_SYS_MMC_MAX_BLK_COUNT 1
#define CONFIG_ATMEL_SPI
#define CONFIG_SPI_FLASH
diff --git a/include/configs/atstk1002.h b/include/configs/atstk1002.h
index 44ce242..bb426f1 100644
--- a/include/configs/atstk1002.h
+++ b/include/configs/atstk1002.h
@@ -151,7 +151,9 @@
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC
#define CONFIG_MMC
-#define CONFIG_ATMEL_MCI
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_GENERIC_MMC
+#define CONFIG_SYS_MMC_MAX_BLK_COUNT 1
#define CONFIG_SYS_DCACHE_LINESZ 32
#define CONFIG_SYS_ICACHE_LINESZ 32
diff --git a/include/configs/atstk1003.h b/include/configs/atstk1003.h
index c5e357f..a426f15 100644
--- a/include/configs/atstk1003.h
+++ b/include/configs/atstk1003.h
@@ -135,7 +135,8 @@
#define CONFIG_PORTMUX_PIO
#define CONFIG_SYS_HSDRAMC
#define CONFIG_MMC
-#define CONFIG_ATMEL_MCI
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_GENERIC_MMC
#define CONFIG_SYS_DCACHE_LINESZ 32
#define CONFIG_SYS_ICACHE_LINESZ 32
diff --git a/include/configs/atstk1004.h b/include/configs/atstk1004.h
index 3814732..1b4a1af 100644
--- a/include/configs/atstk1004.h
+++ b/include/configs/atstk1004.h
@@ -135,7 +135,9 @@
#define CONFIG_PORTMUX_PIO
#define CONFIG_SYS_HSDRAMC
#define CONFIG_MMC
-#define CONFIG_ATMEL_MCI
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_GENERIC_MMC
+#define CONFIG_SYS_MMC_MAX_BLK_COUNT 1
#define CONFIG_SYS_DCACHE_LINESZ 32
#define CONFIG_SYS_ICACHE_LINESZ 32
diff --git a/include/configs/atstk1006.h b/include/configs/atstk1006.h
index a30aa70..29fdd12 100644
--- a/include/configs/atstk1006.h
+++ b/include/configs/atstk1006.h
@@ -151,7 +151,9 @@
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC
#define CONFIG_MMC
-#define CONFIG_ATMEL_MCI
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_GENERIC_MMC
+#define CONFIG_SYS_MMC_MAX_BLK_COUNT 1
#define CONFIG_SYS_DCACHE_LINESZ 32
#define CONFIG_SYS_ICACHE_LINESZ 32
diff --git a/include/configs/favr-32-ezkit.h b/include/configs/favr-32-ezkit.h
index 757636d..1c8da9f 100644
--- a/include/configs/favr-32-ezkit.h
+++ b/include/configs/favr-32-ezkit.h
@@ -150,7 +150,8 @@
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC
#define CONFIG_MMC
-#define CONFIG_ATMEL_MCI
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_GENERIC_MMC
#define CONFIG_SYS_DCACHE_LINESZ 32
#define CONFIG_SYS_ICACHE_LINESZ 32
diff --git a/include/configs/hammerhead.h b/include/configs/hammerhead.h
index 94e680c..5570bdb 100644
--- a/include/configs/hammerhead.h
+++ b/include/configs/hammerhead.h
@@ -124,7 +124,8 @@
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC
#define CONFIG_MMC
-#define CONFIG_ATMEL_MCI
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_GENERIC_MMC
#define CONFIG_SYS_DCACHE_LINESZ 32
#define CONFIG_SYS_ICACHE_LINESZ 32
diff --git a/include/configs/mimc200.h b/include/configs/mimc200.h
index d8d8256..8031a05 100644
--- a/include/configs/mimc200.h
+++ b/include/configs/mimc200.h
@@ -129,7 +129,8 @@
#define CONFIG_SYS_NR_PIOS 5
#define CONFIG_SYS_HSDRAMC
#define CONFIG_MMC
-#define CONFIG_ATMEL_MCI
+#define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_GENERIC_MMC
#if defined(CONFIG_LCD)
#define CONFIG_CMD_BMP
diff --git a/include/mmc.h b/include/mmc.h
index 53aff9b..2607b4f 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -316,7 +316,6 @@ int board_mmc_getcd(u8 *cd, struct mmc *mmc);
int mmc_switch_part(int dev_num, unsigned int part_num);
#ifdef CONFIG_GENERIC_MMC
-int atmel_mci_init(void *regs);
#define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI)
struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode);
#else
--
1.7.6.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* [U-Boot] [PATCH 2/2] ATMEL: remove old atmel_mci driver
2011-10-21 12:49 [U-Boot] [PATCH v2] ATMEL: switch atmel_mci users to gen_atmel_mci Sven Schnelle
2011-10-21 12:49 ` [U-Boot] [PATCH 1/2] ATMEL: use generic mmc framework Sven Schnelle
@ 2011-10-21 12:49 ` Sven Schnelle
2012-03-13 13:35 ` Andreas Bießmann
1 sibling, 1 reply; 7+ messages in thread
From: Sven Schnelle @ 2011-10-21 12:49 UTC (permalink / raw)
To: u-boot
All boards are using the gen_atmel_mci driver now, so no need
to carry the old driver around.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
---
arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c | 2 +-
arch/avr32/lib/board.c | 2 +-
doc/README.atmel_mci | 2 +-
drivers/mmc/Makefile | 1 -
drivers/mmc/atmel_mci.c | 533 ---------------------
5 files changed, 3 insertions(+), 537 deletions(-)
delete mode 100644 drivers/mmc/atmel_mci.c
diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c
index 65b8d51..44810e6 100644
--- a/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c
+++ b/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c
@@ -196,7 +196,7 @@ void at91_macb_hw_init(void)
}
#endif
-#if defined(CONFIG_ATMEL_MCI) || defined(CONFIG_GENERIC_ATMEL_MCI)
+#if defined(CONFIG_GENERIC_ATMEL_MCI)
void at91_mci_hw_init(void)
{
at91_set_a_periph(AT91_PIO_PORTA, 8, 1); /* MCCK */
diff --git a/arch/avr32/lib/board.c b/arch/avr32/lib/board.c
index 3c18abe..34c5102 100644
--- a/arch/avr32/lib/board.c
+++ b/arch/avr32/lib/board.c
@@ -37,7 +37,7 @@
#define CONFIG_IDENT_STRING ""
#endif
-#ifdef CONFIG_ATMEL_MCI
+#ifdef CONFIG_GENERIC_ATMEL_MCI
#include <mmc.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
diff --git a/doc/README.atmel_mci b/doc/README.atmel_mci
index dee0cf0..61c2c5c 100644
--- a/doc/README.atmel_mci
+++ b/doc/README.atmel_mci
@@ -20,7 +20,7 @@ board/SoC specific manner before the driver is initialized:
example: this is added to at91sam9260_devices.c:
-#if defined(CONFIG_ATMEL_MCI) || defined(CONFIG_GENERIC_ATMEL_MCI)
+#if defined(CONFIG_GENERIC_ATMEL_MCI)
void at91_mci_hw_init(void)
{
at91_set_a_periph(AT91_PIO_PORTA, 8, PUP); /* MCCK */
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 6e94860..cf4d8ab 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -25,7 +25,6 @@ include $(TOPDIR)/config.mk
LIB := $(obj)libmmc.o
-COBJS-$(CONFIG_ATMEL_MCI) += atmel_mci.o
COBJS-$(CONFIG_BFIN_SDH) += bfin_sdh.o
COBJS-$(CONFIG_DAVINCI_MMC) += davinci_mmc.o
COBJS-$(CONFIG_FSL_ESDHC) += fsl_esdhc.o
diff --git a/drivers/mmc/atmel_mci.c b/drivers/mmc/atmel_mci.c
deleted file mode 100644
index 0af8d42..0000000
--- a/drivers/mmc/atmel_mci.c
+++ /dev/null
@@ -1,533 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * 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
- */
-#include <common.h>
-
-#include <part.h>
-#include <mmc.h>
-
-#include <asm/io.h>
-#include <asm/errno.h>
-#include <asm/byteorder.h>
-#include <asm/arch/clk.h>
-#include <asm/arch/hardware.h>
-
-#include "atmel_mci.h"
-
-#ifdef DEBUG
-#define pr_debug(fmt, args...) printf(fmt, ##args)
-#else
-#define pr_debug(...) do { } while(0)
-#endif
-
-#ifndef CONFIG_SYS_MMC_CLK_OD
-#define CONFIG_SYS_MMC_CLK_OD 150000
-#endif
-
-#ifndef CONFIG_SYS_MMC_CLK_PP
-#define CONFIG_SYS_MMC_CLK_PP 5000000
-#endif
-
-#ifndef CONFIG_SYS_MMC_OP_COND
-#define CONFIG_SYS_MMC_OP_COND 0x00100000
-#endif
-
-#define MMC_DEFAULT_BLKLEN 512
-#define MMC_DEFAULT_RCA 1
-
-static unsigned int mmc_rca;
-static int mmc_card_is_sd;
-static block_dev_desc_t mmc_blkdev;
-
-block_dev_desc_t *mmc_get_dev(int dev)
-{
- return &mmc_blkdev;
-}
-
-static void mci_set_mode(unsigned long hz, unsigned long blklen)
-{
- unsigned long bus_hz;
- unsigned long clkdiv;
-
- bus_hz = get_mci_clk_rate();
- clkdiv = (bus_hz / hz) / 2 - 1;
-
- pr_debug("mmc: setting clock %lu Hz, block size %lu\n",
- hz, blklen);
-
- if (clkdiv & ~255UL) {
- clkdiv = 255;
- printf("mmc: clock %lu too low; setting CLKDIV to 255\n",
- hz);
- }
-
- blklen &= 0xfffc;
- mmci_writel(MR, (MMCI_BF(CLKDIV, clkdiv)
- | MMCI_BF(BLKLEN, blklen)
- | MMCI_BIT(RDPROOF)
- | MMCI_BIT(WRPROOF)));
-}
-
-#define RESP_NO_CRC 1
-#define R1 MMCI_BF(RSPTYP, 1)
-#define R2 MMCI_BF(RSPTYP, 2)
-#define R3 (R1 | RESP_NO_CRC)
-#define R6 R1
-#define NID MMCI_BF(MAXLAT, 0)
-#define NCR MMCI_BF(MAXLAT, 1)
-#define TRCMD_START MMCI_BF(TRCMD, 1)
-#define TRDIR_READ MMCI_BF(TRDIR, 1)
-#define TRTYP_BLOCK MMCI_BF(TRTYP, 0)
-#define INIT_CMD MMCI_BF(SPCMD, 1)
-#define OPEN_DRAIN MMCI_BF(OPDCMD, 1)
-
-#define ERROR_FLAGS (MMCI_BIT(DTOE) \
- | MMCI_BIT(RDIRE) \
- | MMCI_BIT(RENDE) \
- | MMCI_BIT(RINDE) \
- | MMCI_BIT(RTOE))
-
-static int
-mmc_cmd(unsigned long cmd, unsigned long arg,
- void *resp, unsigned long flags)
-{
- unsigned long *response = resp;
- int i, response_words = 0;
- unsigned long error_flags;
- u32 status;
-
- pr_debug("mmc: CMD%lu 0x%lx (flags 0x%lx)\n",
- cmd, arg, flags);
-
- error_flags = ERROR_FLAGS;
- if (!(flags & RESP_NO_CRC))
- error_flags |= MMCI_BIT(RCRCE);
-
- flags &= ~MMCI_BF(CMDNB, ~0UL);
-
- if (MMCI_BFEXT(RSPTYP, flags) == MMCI_RSPTYP_48_BIT_RESP)
- response_words = 1;
- else if (MMCI_BFEXT(RSPTYP, flags) == MMCI_RSPTYP_136_BIT_RESP)
- response_words = 4;
-
- mmci_writel(ARGR, arg);
- mmci_writel(CMDR, cmd | flags);
- do {
- udelay(40);
- status = mmci_readl(SR);
- } while (!(status & MMCI_BIT(CMDRDY)));
-
- pr_debug("mmc: status 0x%08x\n", status);
-
- if (status & error_flags) {
- printf("mmc: command %lu failed (status: 0x%08x)\n",
- cmd, status);
- return -EIO;
- }
-
- if (response_words)
- pr_debug("mmc: response:");
-
- for (i = 0; i < response_words; i++) {
- response[i] = mmci_readl(RSPR);
- pr_debug(" %08lx", response[i]);
- }
- pr_debug("\n");
-
- return 0;
-}
-
-static int mmc_acmd(unsigned long cmd, unsigned long arg,
- void *resp, unsigned long flags)
-{
- unsigned long aresp[4];
- int ret;
-
- /*
- * Seems like the APP_CMD part of an ACMD has 64 cycles max
- * latency even though the ACMD part doesn't. This isn't
- * entirely clear in the SD Card spec, but some cards refuse
- * to work if we attempt to use 5 cycles max latency here...
- */
- ret = mmc_cmd(MMC_CMD_APP_CMD, 0, aresp,
- R1 | NCR | (flags & OPEN_DRAIN));
- if (ret)
- return ret;
- if ((aresp[0] & (R1_ILLEGAL_COMMAND | R1_APP_CMD)) != R1_APP_CMD)
- return -ENODEV;
-
- ret = mmc_cmd(cmd, arg, resp, flags);
- return ret;
-}
-
-static unsigned long
-mmc_bread(int dev, unsigned long start, lbaint_t blkcnt,
- void *buffer)
-{
- int ret, i = 0;
- unsigned long resp[4];
- unsigned long card_status, data;
- unsigned long wordcount;
- u32 *p = buffer;
- u32 status;
-
- if (blkcnt == 0)
- return 0;
-
- pr_debug("mmc_bread: dev %d, start %lx, blkcnt %lx\n",
- dev, start, blkcnt);
-
- /* Put the device into Transfer state */
- ret = mmc_cmd(MMC_CMD_SELECT_CARD, mmc_rca << 16, resp, R1 | NCR);
- if (ret) goto out;
-
- /* Set block length */
- ret = mmc_cmd(MMC_CMD_SET_BLOCKLEN, mmc_blkdev.blksz, resp, R1 | NCR);
- if (ret) goto out;
-
- pr_debug("MCI_DTOR = %08lx\n", mmci_readl(DTOR));
-
- for (i = 0; i < blkcnt; i++, start++) {
- ret = mmc_cmd(MMC_CMD_READ_SINGLE_BLOCK,
- start * mmc_blkdev.blksz, resp,
- (R1 | NCR | TRCMD_START | TRDIR_READ
- | TRTYP_BLOCK));
- if (ret) goto out;
-
- ret = -EIO;
- wordcount = 0;
- do {
- do {
- status = mmci_readl(SR);
- if (status & (ERROR_FLAGS | MMCI_BIT(OVRE)))
- goto read_error;
- } while (!(status & MMCI_BIT(RXRDY)));
-
- if (status & MMCI_BIT(RXRDY)) {
- data = mmci_readl(RDR);
- /* pr_debug("%x\n", data); */
- *p++ = data;
- wordcount++;
- }
- } while(wordcount < (mmc_blkdev.blksz / 4));
-
- pr_debug("mmc: read %u words, waiting for BLKE\n", wordcount);
-
- do {
- status = mmci_readl(SR);
- } while (!(status & MMCI_BIT(BLKE)));
-
- putc('.');
- }
-
-out:
- /* Put the device back into Standby state */
- mmc_cmd(MMC_CMD_SELECT_CARD, 0, resp, NCR);
- return i;
-
-read_error:
- mmc_cmd(MMC_CMD_SEND_STATUS, mmc_rca << 16, &card_status, R1 | NCR);
- printf("mmc: bread failed, status = %08x, card status = %08lx\n",
- status, card_status);
- goto out;
-}
-
-static void mmc_parse_cid(struct mmc_cid *cid, unsigned long *resp)
-{
- cid->mid = resp[0] >> 24;
- cid->oid = (resp[0] >> 8) & 0xffff;
- cid->pnm[0] = resp[0];
- cid->pnm[1] = resp[1] >> 24;
- cid->pnm[2] = resp[1] >> 16;
- cid->pnm[3] = resp[1] >> 8;
- cid->pnm[4] = resp[1];
- cid->pnm[5] = resp[2] >> 24;
- cid->pnm[6] = 0;
- cid->prv = resp[2] >> 16;
- cid->psn = (resp[2] << 16) | (resp[3] >> 16);
- cid->mdt = resp[3] >> 8;
-}
-
-static void sd_parse_cid(struct mmc_cid *cid, unsigned long *resp)
-{
- cid->mid = resp[0] >> 24;
- cid->oid = (resp[0] >> 8) & 0xffff;
- cid->pnm[0] = resp[0];
- cid->pnm[1] = resp[1] >> 24;
- cid->pnm[2] = resp[1] >> 16;
- cid->pnm[3] = resp[1] >> 8;
- cid->pnm[4] = resp[1];
- cid->pnm[5] = 0;
- cid->pnm[6] = 0;
- cid->prv = resp[2] >> 24;
- cid->psn = (resp[2] << 8) | (resp[3] >> 24);
- cid->mdt = (resp[3] >> 8) & 0x0fff;
-}
-
-static void mmc_dump_cid(const struct mmc_cid *cid)
-{
- printf("Manufacturer ID: %02X\n", cid->mid);
- printf("OEM/Application ID: %04X\n", cid->oid);
- printf("Product name: %s\n", cid->pnm);
- printf("Product Revision: %u.%u\n",
- cid->prv >> 4, cid->prv & 0x0f);
- printf("Product Serial Number: %lu\n", cid->psn);
- printf("Manufacturing Date: %02u/%02u\n",
- cid->mdt >> 4, cid->mdt & 0x0f);
-}
-
-static void mmc_dump_csd(const struct mmc_csd *csd)
-{
- unsigned long *csd_raw = (unsigned long *)csd;
- printf("CSD data: %08lx %08lx %08lx %08lx\n",
- csd_raw[0], csd_raw[1], csd_raw[2], csd_raw[3]);
- printf("CSD structure version: 1.%u\n", csd->csd_structure);
- printf("MMC System Spec version: %u\n", csd->spec_vers);
- printf("Card command classes: %03x\n", csd->ccc);
- printf("Read block length: %u\n", 1 << csd->read_bl_len);
- if (csd->read_bl_partial)
- puts("Supports partial reads\n");
- else
- puts("Does not support partial reads\n");
- printf("Write block length: %u\n", 1 << csd->write_bl_len);
- if (csd->write_bl_partial)
- puts("Supports partial writes\n");
- else
- puts("Does not support partial writes\n");
- if (csd->wp_grp_enable)
- printf("Supports group WP: %u\n", csd->wp_grp_size + 1);
- else
- puts("Does not support group WP\n");
- printf("Card capacity: %u bytes\n",
- (csd->c_size + 1) * (1 << (csd->c_size_mult + 2)) *
- (1 << csd->read_bl_len));
- printf("File format: %u/%u\n",
- csd->file_format_grp, csd->file_format);
- puts("Write protection: ");
- if (csd->perm_write_protect)
- puts(" permanent");
- if (csd->tmp_write_protect)
- puts(" temporary");
- putc('\n');
-}
-
-static int mmc_idle_cards(void)
-{
- int ret;
-
- /* Reset and initialize all cards */
- ret = mmc_cmd(MMC_CMD_GO_IDLE_STATE, 0, NULL, 0);
- if (ret)
- return ret;
-
- /* Keep the bus idle for 74 clock cycles */
- return mmc_cmd(0, 0, NULL, INIT_CMD);
-}
-
-static int sd_init_card(struct mmc_cid *cid, int verbose)
-{
- unsigned long resp[4];
- int i, ret = 0;
-
- mmc_idle_cards();
- for (i = 0; i < 1000; i++) {
- ret = mmc_acmd(SD_CMD_APP_SEND_OP_COND, CONFIG_SYS_MMC_OP_COND,
- resp, R3 | NID);
- if (ret || (resp[0] & 0x80000000))
- break;
- ret = -ETIMEDOUT;
- }
-
- if (ret)
- return ret;
-
- ret = mmc_cmd(MMC_CMD_ALL_SEND_CID, 0, resp, R2 | NID);
- if (ret)
- return ret;
- sd_parse_cid(cid, resp);
- if (verbose)
- mmc_dump_cid(cid);
-
- /* Get RCA of the card that responded */
- ret = mmc_cmd(SD_CMD_SEND_RELATIVE_ADDR, 0, resp, R6 | NCR);
- if (ret)
- return ret;
-
- mmc_rca = resp[0] >> 16;
- if (verbose)
- printf("SD Card detected (RCA %u)\n", mmc_rca);
- mmc_card_is_sd = 1;
- return 0;
-}
-
-static int mmc_init_card(struct mmc_cid *cid, int verbose)
-{
- unsigned long resp[4];
- int i, ret = 0;
-
- mmc_idle_cards();
- for (i = 0; i < 1000; i++) {
- ret = mmc_cmd(MMC_CMD_SEND_OP_COND, CONFIG_SYS_MMC_OP_COND, resp,
- R3 | NID | OPEN_DRAIN);
- if (ret || (resp[0] & 0x80000000))
- break;
- ret = -ETIMEDOUT;
- }
-
- if (ret)
- return ret;
-
- /* Get CID of all cards. FIXME: Support more than one card */
- ret = mmc_cmd(MMC_CMD_ALL_SEND_CID, 0, resp, R2 | NID | OPEN_DRAIN);
- if (ret)
- return ret;
- mmc_parse_cid(cid, resp);
- if (verbose)
- mmc_dump_cid(cid);
-
- /* Set Relative Address of the card that responded */
- ret = mmc_cmd(MMC_CMD_SET_RELATIVE_ADDR, mmc_rca << 16, resp,
- R1 | NCR | OPEN_DRAIN);
- return ret;
-}
-
-static void mci_set_data_timeout(struct mmc_csd *csd)
-{
- static const unsigned int dtomul_to_shift[] = {
- 0, 4, 7, 8, 10, 12, 16, 20,
- };
- static const unsigned int taac_exp[] = {
- 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000,
- };
- static const unsigned int taac_mant[] = {
- 0, 10, 12, 13, 15, 60, 25, 30,
- 35, 40, 45, 50, 55, 60, 70, 80,
- };
- unsigned int timeout_ns, timeout_clks;
- unsigned int e, m;
- unsigned int dtocyc, dtomul;
- unsigned int shift;
- u32 dtor;
-
- e = csd->taac & 0x07;
- m = (csd->taac >> 3) & 0x0f;
-
- timeout_ns = (taac_exp[e] * taac_mant[m] + 9) / 10;
- timeout_clks = csd->nsac * 100;
-
- timeout_clks += (((timeout_ns + 9) / 10)
- * ((CONFIG_SYS_MMC_CLK_PP + 99999) / 100000) + 9999) / 10000;
- if (!mmc_card_is_sd)
- timeout_clks *= 10;
- else
- timeout_clks *= 100;
-
- dtocyc = timeout_clks;
- dtomul = 0;
- shift = 0;
- while (dtocyc > 15 && dtomul < 8) {
- dtomul++;
- shift = dtomul_to_shift[dtomul];
- dtocyc = (timeout_clks + (1 << shift) - 1) >> shift;
- }
-
- if (dtomul >= 8) {
- dtomul = 7;
- dtocyc = 15;
- puts("Warning: Using maximum data timeout\n");
- }
-
- dtor = (MMCI_BF(DTOMUL, dtomul)
- | MMCI_BF(DTOCYC, dtocyc));
- mmci_writel(DTOR, dtor);
-
- printf("mmc: Using %u cycles data timeout (DTOR=0x%x)\n",
- dtocyc << shift, dtor);
-}
-
-int mmc_legacy_init(int verbose)
-{
- struct mmc_cid cid;
- struct mmc_csd csd;
- unsigned int max_blksz;
- int ret;
-
- /* Initialize controller */
- mmci_writel(CR, MMCI_BIT(SWRST));
- mmci_writel(CR, MMCI_BIT(MCIEN));
- mmci_writel(DTOR, 0x5f);
- mmci_writel(IDR, ~0UL);
- mci_set_mode(CONFIG_SYS_MMC_CLK_OD, MMC_DEFAULT_BLKLEN);
-
- mmc_card_is_sd = 0;
-
- ret = sd_init_card(&cid, verbose);
- if (ret) {
- mmc_rca = MMC_DEFAULT_RCA;
- ret = mmc_init_card(&cid, verbose);
- }
- if (ret)
- return ret;
-
- /* Get CSD from the card */
- ret = mmc_cmd(MMC_CMD_SEND_CSD, mmc_rca << 16, &csd, R2 | NCR);
- if (ret)
- return ret;
- if (verbose)
- mmc_dump_csd(&csd);
-
- mci_set_data_timeout(&csd);
-
- /* Initialize the blockdev structure */
- mmc_blkdev.if_type = IF_TYPE_MMC;
- mmc_blkdev.part_type = PART_TYPE_DOS;
- mmc_blkdev.block_read = mmc_bread;
- sprintf((char *)mmc_blkdev.vendor,
- "Man %02x%04x Snr %08lx",
- cid.mid, cid.oid, cid.psn);
- strncpy((char *)mmc_blkdev.product, cid.pnm,
- sizeof(mmc_blkdev.product));
- sprintf((char *)mmc_blkdev.revision, "%x %x",
- cid.prv >> 4, cid.prv & 0x0f);
-
- /*
- * If we can't use 512 byte blocks, refuse to deal with the
- * card. Tons of code elsewhere seems to depend on this.
- */
- max_blksz = 1 << csd.read_bl_len;
- if (max_blksz < 512 || (max_blksz > 512 && !csd.read_bl_partial)) {
- printf("Card does not support 512 byte reads, aborting.\n");
- return -ENODEV;
- }
- mmc_blkdev.blksz = 512;
- mmc_blkdev.lba = (csd.c_size + 1) * (1 << (csd.c_size_mult + 2));
-
- mci_set_mode(CONFIG_SYS_MMC_CLK_PP, mmc_blkdev.blksz);
-
-#if 0
- if (fat_register_device(&mmc_blkdev, 1))
- printf("Could not register MMC fat device\n");
-#else
- init_part(&mmc_blkdev);
-#endif
-
- return 0;
-}
--
1.7.6.3
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