diff options
Diffstat (limited to 'packages/linux/linux-omap2-git/beagleboard/00002-mcbsp-omap1.patch')
| -rw-r--r-- | packages/linux/linux-omap2-git/beagleboard/00002-mcbsp-omap1.patch | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/packages/linux/linux-omap2-git/beagleboard/00002-mcbsp-omap1.patch b/packages/linux/linux-omap2-git/beagleboard/00002-mcbsp-omap1.patch new file mode 100644 index 0000000000..76246a9fae --- /dev/null +++ b/packages/linux/linux-omap2-git/beagleboard/00002-mcbsp-omap1.patch @@ -0,0 +1,204 @@ +From: Eduardo Valentin <eduardo.valentin@indt.org.br>
+
+This patch adds support for mach-omap1 based on current
+mcbsp platform driver.
+
+Signed-off-by: Eduardo Valentin <eduardo.valentin@indt.org.br>
+---
+ arch/arm/mach-omap1/Makefile | 2 +
+ arch/arm/mach-omap1/mcbsp.c | 165 ++++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 167 insertions(+), 0 deletions(-)
+ create mode 100644 arch/arm/mach-omap1/mcbsp.c
+
+diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile
+index 6ebf23b..09246a7 100644
+--- a/arch/arm/mach-omap1/Makefile
++++ b/arch/arm/mach-omap1/Makefile
+@@ -5,6 +5,8 @@
+ # Common support
+ obj-y := io.o id.o clock.o irq.o mux.o serial.o devices.o
+
++obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
++
+ obj-$(CONFIG_OMAP_MPU_TIMER) += time.o
+ obj-$(CONFIG_OMAP_32K_TIMER) += timer32k.o
+
+diff --git a/arch/arm/mach-omap1/mcbsp.c b/arch/arm/mach-omap1/mcbsp.c
+new file mode 100644
+index 0000000..f30624a
+--- /dev/null
++++ b/arch/arm/mach-omap1/mcbsp.c
+@@ -0,0 +1,165 @@
++/*
++ * linux/arch/arm/mach-omap1/mcbsp.c
++ *
++ * Copyright (C) 2008 Instituto Nokia de Tecnologia
++ * Contact: Eduardo Valentin <eduardo.valentin@indt.org.br>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ * Multichannel mode not supported.
++ */
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/clk.h>
++#include <linux/err.h>
++#include <linux/io.h>
++
++#include <asm/arch/dma.h>
++#include <asm/arch/mux.h>
++#include <asm/arch/cpu.h>
++#include <asm/arch/mcbsp.h>
++#include <asm/arch/dsp_common.h>
++
++#define DPS_RSTCT2_PER_EN (1 << 0)
++#define DSP_RSTCT2_WD_PER_EN (1 << 1)
++
++static int omap1_mcbsp_check(unsigned int id)
++{
++ /* REVISIT: Check correctly for number of registered McBSPs */
++ if (cpu_is_omap730()) {
++ if (id > OMAP_MAX_MCBSP_COUNT - 2) {
++ printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n",
++ id + 1);
++ return -ENODEV;
++ }
++ return 0;
++ }
++
++ if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
++ if (id > OMAP_MAX_MCBSP_COUNT - 1) {
++ printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n",
++ id + 1);
++ return -ENODEV;
++ }
++ return 0;
++ }
++
++ return -ENODEV;
++}
++
++static void omap1_mcbsp_request(unsigned int id)
++{
++ /*
++ * On 1510, 1610 and 1710, McBSP1 and McBSP3
++ * are DSP public peripherals.
++ */
++ if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3) {
++ omap_dsp_request_mem();
++ /*
++ * DSP external peripheral reset
++ * FIXME: This should be moved to dsp code
++ */
++ __raw_writew(__raw_readw(DSP_RSTCT2) | DPS_RSTCT2_PER_EN |
++ DSP_RSTCT2_WD_PER_EN, DSP_RSTCT2);
++ }
++}
++
++static void omap1_mcbsp_free(unsigned int id)
++{
++ if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
++ omap_dsp_release_mem();
++}
++
++static struct omap_mcbsp_ops omap1_mcbsp_ops = {
++ .check = omap1_mcbsp_check,
++ .request = omap1_mcbsp_request,
++ .free = omap1_mcbsp_free,
++};
++
++static struct omap_mcbsp_platform_data omap1_mcbsp_pdata[] = {
++#ifdef CONFIG_ARCH_OMAP730
++ {
++ .virt_base = io_p2v(OMAP730_MCBSP1_BASE),
++ .dma_rx_sync = OMAP_DMA_MCBSP1_RX,
++ .dma_tx_sync = OMAP_DMA_MCBSP1_TX,
++ .rx_irq = INT_730_McBSP1RX,
++ .tx_irq = INT_730_McBSP1TX,
++ .ops = &omap1_mcbsp_ops,
++ },
++ {
++ .virt_base = io_p2v(OMAP730_MCBSP2_BASE),
++ .dma_rx_sync = OMAP_DMA_MCBSP3_RX,
++ .dma_tx_sync = OMAP_DMA_MCBSP3_TX,
++ .rx_irq = INT_730_McBSP2RX,
++ .tx_irq = INT_730_McBSP2TX
++ .ops = &omap1_mcbsp_ops,
++ },
++#endif
++#ifdef CONFIG_ARCH_OMAP15XX
++ {
++ .virt_base = OMAP1510_MCBSP1_BASE,
++ .dma_rx_sync = OMAP_DMA_MCBSP1_RX,
++ .dma_tx_sync = OMAP_DMA_MCBSP1_TX,
++ .rx_irq = INT_McBSP1RX,
++ .tx_irq = INT_McBSP1TX,
++ .ops = &omap1_mcbsp_ops,
++ .clocks = { "dsp_ck", "api_ck", "dspxor_ck" },
++ },
++ {
++ .virt_base = io_p2v(OMAP1510_MCBSP2_BASE),
++ .dma_rx_sync = OMAP_DMA_MCBSP2_RX,
++ .dma_tx_sync = OMAP_DMA_MCBSP2_TX,
++ .rx_irq = INT_1510_SPI_RX,
++ .tx_irq = INT_1510_SPI_TX,
++ .ops = &omap1_mcbsp_ops,
++ },
++ {
++ .virt_base = OMAP1510_MCBSP3_BASE,
++ .dma_rx_sync = OMAP_DMA_MCBSP3_RX,
++ .dma_tx_sync = OMAP_DMA_MCBSP3_TX,
++ .rx_irq = INT_McBSP3RX,
++ .tx_irq = INT_McBSP3TX,
++ .ops = &omap1_mcbsp_ops,
++ .clocks = { "dsp_ck", "api_ck", "dspxor_ck" },
++ },
++#endif
++#ifdef CONFIG_ARCH_OMAP16XX
++ {
++ .virt_base = OMAP1610_MCBSP1_BASE,
++ .dma_rx_sync = OMAP_DMA_MCBSP1_RX,
++ .dma_tx_sync = OMAP_DMA_MCBSP1_TX,
++ .rx_irq = INT_McBSP1RX,
++ .tx_irq = INT_McBSP1TX,
++ .ops = &omap1_mcbsp_ops,
++ .clocks = { "dsp_ck", "api_ck", "dspxor_ck" },
++ },
++ {
++ .virt_base = io_p2v(OMAP1610_MCBSP2_BASE),
++ .dma_rx_sync = OMAP_DMA_MCBSP2_RX,
++ .dma_tx_sync = OMAP_DMA_MCBSP2_TX,
++ .rx_irq = INT_1610_McBSP2_RX,
++ .tx_irq = INT_1610_McBSP2_TX,
++ .ops = &omap1_mcbsp_ops,
++ },
++ {
++ .virt_base = OMAP1610_MCBSP3_BASE,
++ .dma_rx_sync = OMAP_DMA_MCBSP3_RX,
++ .dma_tx_sync = OMAP_DMA_MCBSP3_TX,
++ .rx_irq = INT_McBSP3RX,
++ .tx_irq = INT_McBSP3TX,
++ .ops = &omap1_mcbsp_ops,
++ .clocks = { "dsp_ck", "api_ck", "dspxor_ck" },
++ },
++#endif
++};
++#define mcbsp_count ARRAY_SIZE(omap1_mcbsp_pdata)
++
++int __init omap1_mcbsp_init(void)
++{
++ omap_mcbsp_register_board_cfg(omap1_mcbsp_pdata, mcbsp_count);
++
++ return omap_mcbsp_init();
++}
++arch_initcall(omap1_mcbsp_init);
+--
+1.5.5.1.67.gbdb8.dirty
+
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