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[ARM] 4151/1: AT91 / AVR32: Move at91_pdc.h to linux/atmel_pdc.h
The Atmel AT91 and AVR32 processor architectures share many of the same peripherals. The PDC (Peripheral Data Controller) registers are also implemented within in a number of the on-chip peripherals (eg, USART, MMC, SPI, SSC, etc). In a attempt not to duplicate the register definitions in each peripheral, or in each architecture, the at91_pdc.h header in asm-arm/arch-at91 and asm-avr32/arch-at32ap has been replaced with linux/atmel_pdc.h. The definitions have also been renamed from AT91_PDC_* to ATMEL_PDC_*, and the drivers updated accordingly. Original patch from Nicolas Ferre. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Andrew Victor
Russell King
parent
da11d02c1d
commit
93a3ddc201
5 changed files with 61 additions and 96 deletions
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@ -64,6 +64,7 @@
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#include <linux/err.h>
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#include <linux/dma-mapping.h>
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#include <linux/clk.h>
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#include <linux/atmel_pdc.h>
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#include <linux/mmc/host.h>
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#include <linux/mmc/protocol.h>
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@ -75,7 +76,6 @@
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#include <asm/arch/cpu.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/at91_mci.h>
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#include <asm/arch/at91_pdc.h>
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#define DRIVER_NAME "at91_mci"
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@ -211,13 +211,13 @@ static void at91mci_pre_dma_read(struct at91mci_host *host)
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/* Check to see if this needs filling */
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if (i == 0) {
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if (at91_mci_read(host, AT91_PDC_RCR) != 0) {
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if (at91_mci_read(host, ATMEL_PDC_RCR) != 0) {
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pr_debug("Transfer active in current\n");
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continue;
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}
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}
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else {
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if (at91_mci_read(host, AT91_PDC_RNCR) != 0) {
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if (at91_mci_read(host, ATMEL_PDC_RNCR) != 0) {
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pr_debug("Transfer active in next\n");
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continue;
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}
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@ -234,12 +234,12 @@ static void at91mci_pre_dma_read(struct at91mci_host *host)
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pr_debug("dma address = %08X, length = %d\n", sg->dma_address, sg->length);
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if (i == 0) {
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at91_mci_write(host, AT91_PDC_RPR, sg->dma_address);
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at91_mci_write(host, AT91_PDC_RCR, sg->length / 4);
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at91_mci_write(host, ATMEL_PDC_RPR, sg->dma_address);
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at91_mci_write(host, ATMEL_PDC_RCR, sg->length / 4);
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}
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else {
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at91_mci_write(host, AT91_PDC_RNPR, sg->dma_address);
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at91_mci_write(host, AT91_PDC_RNCR, sg->length / 4);
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at91_mci_write(host, ATMEL_PDC_RNPR, sg->dma_address);
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at91_mci_write(host, ATMEL_PDC_RNCR, sg->length / 4);
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}
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}
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@ -303,7 +303,7 @@ static void at91mci_post_dma_read(struct at91mci_host *host)
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at91mci_pre_dma_read(host);
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else {
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at91_mci_write(host, AT91_MCI_IER, AT91_MCI_RXBUFF);
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at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_RXTDIS | AT91_PDC_TXTDIS);
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at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS | ATMEL_PDC_TXTDIS);
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}
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pr_debug("post dma read done\n");
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@ -320,7 +320,7 @@ static void at91_mci_handle_transmitted(struct at91mci_host *host)
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pr_debug("Handling the transmit\n");
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/* Disable the transfer */
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at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_RXTDIS | AT91_PDC_TXTDIS);
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at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS | ATMEL_PDC_TXTDIS);
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/* Now wait for cmd ready */
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at91_mci_write(host, AT91_MCI_IDR, AT91_MCI_TXBUFE);
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@ -431,15 +431,15 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
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cmd->opcode, cmdr, cmd->arg, blocks, block_length, at91_mci_read(host, AT91_MCI_MR));
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if (!data) {
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at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_TXTDIS | AT91_PDC_RXTDIS);
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at91_mci_write(host, AT91_PDC_RPR, 0);
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at91_mci_write(host, AT91_PDC_RCR, 0);
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at91_mci_write(host, AT91_PDC_RNPR, 0);
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at91_mci_write(host, AT91_PDC_RNCR, 0);
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at91_mci_write(host, AT91_PDC_TPR, 0);
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at91_mci_write(host, AT91_PDC_TCR, 0);
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at91_mci_write(host, AT91_PDC_TNPR, 0);
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at91_mci_write(host, AT91_PDC_TNCR, 0);
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at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS | ATMEL_PDC_RXTDIS);
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at91_mci_write(host, ATMEL_PDC_RPR, 0);
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at91_mci_write(host, ATMEL_PDC_RCR, 0);
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at91_mci_write(host, ATMEL_PDC_RNPR, 0);
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at91_mci_write(host, ATMEL_PDC_RNCR, 0);
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at91_mci_write(host, ATMEL_PDC_TPR, 0);
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at91_mci_write(host, ATMEL_PDC_TCR, 0);
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at91_mci_write(host, ATMEL_PDC_TNPR, 0);
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at91_mci_write(host, ATMEL_PDC_TNCR, 0);
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at91_mci_write(host, AT91_MCI_ARGR, cmd->arg);
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at91_mci_write(host, AT91_MCI_CMDR, cmdr);
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@ -452,7 +452,7 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
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/*
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* Disable the PDC controller
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*/
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at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_RXTDIS | AT91_PDC_TXTDIS);
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at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS | ATMEL_PDC_TXTDIS);
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if (cmdr & AT91_MCI_TRCMD_START) {
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data->bytes_xfered = 0;
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@ -481,8 +481,8 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
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pr_debug("Transmitting %d bytes\n", host->total_length);
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at91_mci_write(host, AT91_PDC_TPR, host->physical_address);
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at91_mci_write(host, AT91_PDC_TCR, host->total_length / 4);
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at91_mci_write(host, ATMEL_PDC_TPR, host->physical_address);
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at91_mci_write(host, ATMEL_PDC_TCR, host->total_length / 4);
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ier = AT91_MCI_TXBUFE;
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}
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}
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@ -497,9 +497,9 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
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if (cmdr & AT91_MCI_TRCMD_START) {
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if (cmdr & AT91_MCI_TRDIR)
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at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_RXTEN);
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at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN);
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else
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at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_TXTEN);
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at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN);
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}
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return ier;
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}
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@ -33,12 +33,13 @@
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#include <linux/sysrq.h>
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#include <linux/tty_flip.h>
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#include <linux/platform_device.h>
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#include <linux/atmel_pdc.h>
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#include <asm/io.h>
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#include <asm/mach/serial_at91.h>
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#include <asm/arch/board.h>
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#include <asm/arch/at91_pdc.h>
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#ifdef CONFIG_ARM
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#include <asm/arch/cpu.h>
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#include <asm/arch/gpio.h>
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@ -1,36 +0,0 @@
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/*
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* include/asm-arm/arch-at91/at91_pdc.h
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*
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* Copyright (C) 2005 Ivan Kokshaysky
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* Copyright (C) SAN People
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*
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* Peripheral Data Controller (PDC) registers.
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* Based on AT91RM9200 datasheet revision E.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef AT91_PDC_H
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#define AT91_PDC_H
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#define AT91_PDC_RPR 0x100 /* Receive Pointer Register */
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#define AT91_PDC_RCR 0x104 /* Receive Counter Register */
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#define AT91_PDC_TPR 0x108 /* Transmit Pointer Register */
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#define AT91_PDC_TCR 0x10c /* Transmit Counter Register */
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#define AT91_PDC_RNPR 0x110 /* Receive Next Pointer Register */
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#define AT91_PDC_RNCR 0x114 /* Receive Next Counter Register */
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#define AT91_PDC_TNPR 0x118 /* Transmit Next Pointer Register */
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#define AT91_PDC_TNCR 0x11c /* Transmit Next Counter Register */
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#define AT91_PDC_PTCR 0x120 /* Transfer Control Register */
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#define AT91_PDC_RXTEN (1 << 0) /* Receiver Transfer Enable */
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#define AT91_PDC_RXTDIS (1 << 1) /* Receiver Transfer Disable */
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#define AT91_PDC_TXTEN (1 << 8) /* Transmitter Transfer Enable */
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#define AT91_PDC_TXTDIS (1 << 9) /* Transmitter Transfer Disable */
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#define AT91_PDC_PTSR 0x124 /* Transfer Status Register */
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#endif
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@ -1,36 +0,0 @@
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/*
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* include/asm-arm/arch-at91/at91_pdc.h
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*
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* Copyright (C) 2005 Ivan Kokshaysky
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* Copyright (C) SAN People
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*
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* Peripheral Data Controller (PDC) registers.
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* Based on AT91RM9200 datasheet revision E.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef AT91_PDC_H
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#define AT91_PDC_H
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#define AT91_PDC_RPR 0x100 /* Receive Pointer Register */
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#define AT91_PDC_RCR 0x104 /* Receive Counter Register */
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#define AT91_PDC_TPR 0x108 /* Transmit Pointer Register */
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#define AT91_PDC_TCR 0x10c /* Transmit Counter Register */
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#define AT91_PDC_RNPR 0x110 /* Receive Next Pointer Register */
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#define AT91_PDC_RNCR 0x114 /* Receive Next Counter Register */
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#define AT91_PDC_TNPR 0x118 /* Transmit Next Pointer Register */
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#define AT91_PDC_TNCR 0x11c /* Transmit Next Counter Register */
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#define AT91_PDC_PTCR 0x120 /* Transfer Control Register */
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#define AT91_PDC_RXTEN (1 << 0) /* Receiver Transfer Enable */
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#define AT91_PDC_RXTDIS (1 << 1) /* Receiver Transfer Disable */
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#define AT91_PDC_TXTEN (1 << 8) /* Transmitter Transfer Enable */
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#define AT91_PDC_TXTDIS (1 << 9) /* Transmitter Transfer Disable */
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#define AT91_PDC_PTSR 0x124 /* Transfer Status Register */
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#endif
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36
include/linux/atmel_pdc.h
Normal file
36
include/linux/atmel_pdc.h
Normal file
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@ -0,0 +1,36 @@
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/*
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* include/linux/atmel_pdc.h
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*
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* Copyright (C) 2005 Ivan Kokshaysky
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* Copyright (C) SAN People
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*
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* Peripheral Data Controller (PDC) registers.
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* Based on AT91RM9200 datasheet revision E.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef ATMEL_PDC_H
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#define ATMEL_PDC_H
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#define ATMEL_PDC_RPR 0x100 /* Receive Pointer Register */
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#define ATMEL_PDC_RCR 0x104 /* Receive Counter Register */
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#define ATMEL_PDC_TPR 0x108 /* Transmit Pointer Register */
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#define ATMEL_PDC_TCR 0x10c /* Transmit Counter Register */
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#define ATMEL_PDC_RNPR 0x110 /* Receive Next Pointer Register */
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#define ATMEL_PDC_RNCR 0x114 /* Receive Next Counter Register */
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#define ATMEL_PDC_TNPR 0x118 /* Transmit Next Pointer Register */
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#define ATMEL_PDC_TNCR 0x11c /* Transmit Next Counter Register */
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#define ATMEL_PDC_PTCR 0x120 /* Transfer Control Register */
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#define ATMEL_PDC_RXTEN (1 << 0) /* Receiver Transfer Enable */
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#define ATMEL_PDC_RXTDIS (1 << 1) /* Receiver Transfer Disable */
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#define ATMEL_PDC_TXTEN (1 << 8) /* Transmitter Transfer Enable */
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#define ATMEL_PDC_TXTDIS (1 << 9) /* Transmitter Transfer Disable */
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#define ATMEL_PDC_PTSR 0x124 /* Transfer Status Register */
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#endif
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