diff options
author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2014-07-30 19:11:41 +0900 |
---|---|---|
committer | Tom Rini <trini@ti.com> | 2014-08-09 11:17:04 -0400 |
commit | 8ac22a60e29c4d0925e3d640a3607eabb2732b26 (patch) | |
tree | d9c43e2208f31b56ea3634397a158877aa2b0584 /drivers/dma | |
parent | 0596d35d80f5090440bd9a2a2beaacb268ff59c0 (diff) | |
download | u-boot-8ac22a60e29c4d0925e3d640a3607eabb2732b26.tar.gz |
omap: clean-up dead configs
The following configs are not defined at all.
- CONFIG_OMAP1510
- CONFIG_OMAP_1510P1
- CONFIG_OMAP_SX1
- CONFIG_OMAP3_DMA
- CONFIG_OMAP3_ZOOM2
- CONFIG_OMAP_INNOVATOR
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r-- | drivers/dma/Makefile | 1 | ||||
-rw-r--r-- | drivers/dma/omap3_dma.c | 167 |
2 files changed, 0 insertions, 168 deletions
diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index 8b2821b762..a79c3919dd 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -8,4 +8,3 @@ obj-$(CONFIG_FSLDMAFEC) += MCD_tasksInit.o MCD_dmaApi.o MCD_tasks.o obj-$(CONFIG_APBH_DMA) += apbh_dma.o obj-$(CONFIG_FSL_DMA) += fsl_dma.o -obj-$(CONFIG_OMAP3_DMA) += omap3_dma.o diff --git a/drivers/dma/omap3_dma.c b/drivers/dma/omap3_dma.c deleted file mode 100644 index 3320b3d08d..0000000000 --- a/drivers/dma/omap3_dma.c +++ /dev/null @@ -1,167 +0,0 @@ -/* Copyright (C) 2011 - * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* This is a basic implementation of the SDMA/DMA4 controller of OMAP3 - * Tested on Silicon Revision major:0x4 minor:0x0 - */ - -#include <common.h> -#include <asm/arch/cpu.h> -#include <asm/arch/omap3.h> -#include <asm/arch/dma.h> -#include <asm/io.h> -#include <asm/errno.h> - -static struct dma4 *dma4_cfg = (struct dma4 *)OMAP34XX_DMA4_BASE; -uint32_t dma_active; /* if a transfer is started the respective - bit is set for the logical channel */ - -/* Check if we have the given channel - * PARAMETERS: - * chan: Channel number - * - * RETURN of non-zero means error */ -static inline int check_channel(uint32_t chan) -{ - if (chan < CHAN_NR_MIN || chan > CHAN_NR_MAX) - return -EINVAL; - return 0; -} - -static inline void reset_irq(uint32_t chan) -{ - /* reset IRQ reason */ - writel(0x1DFE, &dma4_cfg->chan[chan].csr); - /* reset IRQ */ - writel((1 << chan), &dma4_cfg->irqstatus_l[0]); - dma_active &= ~(1 << chan); -} - -/* Set Source, Destination and Size of DMA transfer for the - * specified channel. - * PARAMETERS: - * chan: channel to use - * src: source of the transfer - * dst: destination of the transfer - * sze: Size of the transfer - * - * RETURN of non-zero means error */ -int omap3_dma_conf_transfer(uint32_t chan, uint32_t *src, uint32_t *dst, - uint32_t sze) -{ - if (check_channel(chan)) - return -EINVAL; - /* CDSA0 */ - writel((uint32_t)src, &dma4_cfg->chan[chan].cssa); - writel((uint32_t)dst, &dma4_cfg->chan[chan].cdsa); - writel(sze, &dma4_cfg->chan[chan].cen); -return 0; -} - -/* Start the DMA transfer */ -int omap3_dma_start_transfer(uint32_t chan) -{ - uint32_t val; - - if (check_channel(chan)) - return -EINVAL; - - val = readl(&dma4_cfg->chan[chan].ccr); - /* Test for channel already in use */ - if (val & CCR_ENABLE_ENABLE) - return -EBUSY; - - writel((val | CCR_ENABLE_ENABLE), &dma4_cfg->chan[chan].ccr); - dma_active |= (1 << chan); - debug("started transfer...\n"); - return 0; -} - -/* Busy-waiting for a DMA transfer - * This has to be called before another transfer is started - * PARAMETER - * chan: Channel to wait for - * - * RETURN of non-zero means error*/ -int omap3_dma_wait_for_transfer(uint32_t chan) -{ - uint32_t val; - - if (!(dma_active & (1 << chan))) { - val = readl(&dma4_cfg->irqstatus_l[0]); - if (!(val & chan)) { - debug("dma: The channel you are trying to wait for " - "was never activated - ERROR\n"); - return -1; /* channel was never active */ - } - } - - /* all irqs on line 0 */ - while (!(readl(&dma4_cfg->irqstatus_l[0]) & (1 << chan))) - asm("nop"); - - val = readl(&dma4_cfg->chan[chan].csr); - if ((val & CSR_TRANS_ERR) | (val & CSR_SUPERVISOR_ERR) | - (val & CSR_MISALIGNED_ADRS_ERR)) { - debug("err code: %X\n", val); - debug("dma: transfer error detected\n"); - reset_irq(chan); - return -1; - } - reset_irq(chan); - return 0; -} - -/* Get the revision of the DMA module - * PARAMETER - * minor: Address of minor revision to write - * major: Address of major revision to write - * - * RETURN of non-zero means error - */ -int omap3_dma_get_revision(uint32_t *minor, uint32_t *major) -{ - uint32_t val; - - /* debug information */ - val = readl(&dma4_cfg->revision); - *major = (val & 0x000000F0) >> 4; - *minor = (val & 0x0000000F); - debug("DMA Silicon revision (maj/min): 0x%X/0x%X\n", *major, *minor); - return 0; -} - -/* Initial config of omap dma - */ -void omap3_dma_init(void) -{ - dma_active = 0; - /* All interrupts on channel 0 */ - writel(0xFFFFFFFF, &dma4_cfg->irqenable_l[0]); -} - -/* set channel config to config - * - * RETURN of non-zero means error */ -int omap3_dma_conf_chan(uint32_t chan, struct dma4_chan *config) -{ - if (check_channel(chan)) - return -EINVAL; - - dma4_cfg->chan[chan] = *config; - return 0; -} - -/* get channel config to config - * - * RETURN of non-zero means error */ -int omap3_dma_get_conf_chan(uint32_t chan, struct dma4_chan *config) -{ - if (check_channel(chan)) - return -EINVAL; - *config = dma4_cfg->chan[chan]; - return 0; -} |