I had few suggestions.
1>
Clock structure can be moved to header file and create a structure.
So that instead of calling each clock by its name,( big problem for 2430 and 34xx
Which has 5 mcbsp instances) it can be called by Using mcbsp id.
Something like this can be done...
static char omap_mcbsp_ick[][12] = {"mcbsp1_ick\0",
"mcbsp2_ick\0",.........
};
static char omap_mcbsp_fck[][12] = {"mcbsp1_fck\0",
"mcbsp2_fck\0",.........
};
static struct omap_mcbsp_clocks {
struct clk *ick;
struct clk *fck;
} omap_mcbsp_clk[OMAP_MAX_MCBSP_COUNT];
clk_enable(omap_mcbsp_clk[id].ick);
Clk_get or clk_enable/disable will be much simplified.
2> mcbsp structure omap_mcbsp can be moved to header file too. This is to facilitate new
OMAP2 and OMAP3 specific APIs, who might use the structure.
Regards,
Chandra Shekhar
> -----Original Message-----
> From: linux-omap-owner@xxxxxxxxxxxxxxx
> [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of
> Eduardo Valentin
> Sent: Tuesday, April 15, 2008 1:42 AM
> To: linux-omap@xxxxxxxxxxxxxxx
> Cc: Eduardo Valentin
> Subject: [PATCH 2/2] PLAT-OMAP: MCBSP: Move code mach
> specific from plat-omap to mach-omap
>
> From: Eduardo Valentin <eduardo.valentin@xxxxxxxxxxx>
>
> This patch gets ride of ifdefs on mcbsp.c code.
> It moves the mach specific code to mach-omap*.
>
> Signed-off-by: Eduardo Valentin <eduardo.valentin@xxxxxxxxxxx>
> ---
> arch/arm/mach-omap1/Makefile | 2 +
> arch/arm/mach-omap1/mcbsp.c | 202 +++++++++++++++++++++
> arch/arm/mach-omap2/Makefile | 2 +
> arch/arm/mach-omap2/mcbsp.c | 145 ++++++++++++++++
> arch/arm/plat-omap/mcbsp.c | 346
> +++++--------------------------------
> include/asm-arm/arch-omap/mcbsp.h | 19 ++
> 6 files changed, 417 insertions(+), 299 deletions(-) create
> mode 100644 arch/arm/mach-omap1/mcbsp.c create mode 100644
> arch/arm/mach-omap2/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..299f036
> --- /dev/null
> +++ b/arch/arm/mach-omap1/mcbsp.c
> @@ -0,0 +1,202 @@
> +/*
> + * linux/arch/arm/mach-omap1/mcbsp.c
> + *
> + * Copyright (C) 2008 Instituto Nokia de Tecnologia
> + * Contact: Eduardo Valentin <eduardo.valentin@xxxxxxxxxxx>
> + *
> + * 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>
> +
> +static struct clk *mcbsp_dsp_ck;
> +static struct clk *mcbsp_api_ck;
> +static struct clk *mcbsp_dspxor_ck;
> +
> +static void omap_mcbsp_dsp_request(void) {
> + if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
> + int ret;
> +
> + ret = omap_dsp_request_mem();
> + if (ret < 0) {
> + printk(KERN_ERR "Could not get dsp
> memory: %i\n", ret);
> + return;
> + }
> +
> + clk_enable(mcbsp_dsp_ck);
> + clk_enable(mcbsp_api_ck);
> +
> + /* enable 12MHz clock to mcbsp 1 & 3 */
> + clk_enable(mcbsp_dspxor_ck);
> +
> + /*
> + * DSP external peripheral reset
> + * FIXME: This should be moved to dsp code
> + */
> + __raw_writew(__raw_readw(DSP_RSTCT2) | 1 | 1 << 1,
> + DSP_RSTCT2);
> + }
> +}
> +
> +static void omap_mcbsp_dsp_free(void)
> +{
> + if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
> + omap_dsp_release_mem();
> + clk_disable(mcbsp_dspxor_ck);
> + clk_disable(mcbsp_dsp_ck);
> + clk_disable(mcbsp_api_ck);
> + }
> +}
> +
> +static int omap1_mcbsp_check(unsigned int id) {
> + if (cpu_is_omap730()) {
> + if (id > OMAP_MAX_MCBSP_COUNT - 1) {
> + 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) {
> + 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_mcbsp_dsp_request();
> +}
> +
> +static void omap1_mcbsp_free(unsigned int id) {
> + if (cpu_class_is_omap1()) {
> + if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
> + omap_mcbsp_dsp_free();
> + }
> +}
> +
> +struct omap_mcbsp_board_cfg omap1_mcbsp_cfg = {
> + .check = omap1_mcbsp_check,
> + .request = omap1_mcbsp_request,
> + .free = omap1_mcbsp_free,
> + .mcbsp_infos =
> +#ifdef CONFIG_ARCH_OMAP730
> + {
> + [0] = {
> + .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,
> + },
> + [1] = {
> + .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
> + },
> + },
> +#elif defined(CONFIG_ARCH_OMAP15XX)
> + {
> + [0] = {
> + .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
> + },
> + [1] = {
> + .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
> + },
> + [2] = {
> + .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
> + },
> +#elif defined(CONFIG_ARCH_OMAP16XX)
> + {
> + [0] = {
> + .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
> + },
> + [1] = {
> + .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
> + },
> + [2] = {
> + .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
> + },
> + },
> +#else
> +NULL /* For .mcbsp_infos */
> +#endif
> +};
> +
> +int __init omap1_mcbsp_init(void)
> +{
> + mcbsp_dsp_ck = clk_get(0, "dsp_ck");
> + if (IS_ERR(mcbsp_dsp_ck)) {
> + printk(KERN_ERR "mcbsp: could not acquire
> dsp_ck handle.\n");
> + return PTR_ERR(mcbsp_dsp_ck);
> + }
> + mcbsp_api_ck = clk_get(0, "api_ck");
> + if (IS_ERR(mcbsp_api_ck)) {
> + printk(KERN_ERR "mcbsp: could not acquire
> api_ck handle.\n");
> + return PTR_ERR(mcbsp_api_ck);
> + }
> + mcbsp_dspxor_ck = clk_get(0, "dspxor_ck");
> + if (IS_ERR(mcbsp_dspxor_ck)) {
> + printk(KERN_ERR "mcbsp: could not acquire
> dspxor_ck handle.\n");
> + return PTR_ERR(mcbsp_dspxor_ck);
> + }
> +
> + omap_mcbsp_register_board_cfg(&omap1_mcbsp_cfg);
> +
> + return omap_mcbsp_init();
> +}
> +arch_initcall(omap1_mcbsp_init);
> diff --git a/arch/arm/mach-omap2/Makefile
> b/arch/arm/mach-omap2/Makefile index 5157ff2..771f8e7 100644
> --- a/arch/arm/mach-omap2/Makefile
> +++ b/arch/arm/mach-omap2/Makefile
> @@ -6,6 +6,8 @@
> obj-y := irq.o id.o io.o memory.o control.o prcm.o clock.o mux.o \
> devices.o serial.o gpmc.o timer-gp.o
>
> +obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
> +
> # Functions loaded to SRAM
> obj-$(CONFIG_ARCH_OMAP2) += sram24xx.o
>
> diff --git a/arch/arm/mach-omap2/mcbsp.c
> b/arch/arm/mach-omap2/mcbsp.c new file mode 100644 index
> 0000000..8c8b97f
> --- /dev/null
> +++ b/arch/arm/mach-omap2/mcbsp.c
> @@ -0,0 +1,145 @@
> +/*
> + * linux/arch/arm/mach-omap1/mcbsp.c
> + *
> + * Copyright (C) 2008 Instituto Nokia de Tecnologia
> + * Contact: Eduardo Valentin <eduardo.valentin@xxxxxxxxxxx>
> + *
> + * 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 <asm/arch/dma.h>
> +#include <asm/arch/mux.h>
> +#include <asm/arch/cpu.h>
> +#include <asm/arch/mcbsp.h>
> +
> +static struct clk *mcbsp1_ick;
> +static struct clk *mcbsp1_fck;
> +static struct clk *mcbsp2_ick;
> +static struct clk *mcbsp2_fck;
> +
> +static void omap2_mcbsp2_mux_setup(void) {
> + if (cpu_is_omap2420()) {
> + omap_cfg_reg(Y15_24XX_MCBSP2_CLKX);
> + omap_cfg_reg(R14_24XX_MCBSP2_FSX);
> + omap_cfg_reg(W15_24XX_MCBSP2_DR);
> + omap_cfg_reg(V15_24XX_MCBSP2_DX);
> + omap_cfg_reg(V14_24XX_GPIO117);
> + }
> + /*
> + * Need to add MUX settings for OMAP 2430 SDP
> + */
> +}
> +
> +static int omap2_mcbsp_check(unsigned int id) {
> + if (cpu_class_is_omap2()) {
> + if (id > OMAP_MAX_MCBSP_COUNT) {
> + printk(KERN_ERR "OMAP-McBSP: McBSP%d
> doesn't exist\n",
> + id + 1);
> + return -ENODEV;
> + }
> + return 0;
> + }
> +
> + return -ENODEV;
> +}
> +
> +static void omap2_mcbsp_request(unsigned int id) {
> + if (cpu_class_is_omap2()) {
> + if (id == OMAP_MCBSP1) {
> + clk_enable(mcbsp1_ick);
> + clk_enable(mcbsp1_fck);
> + } else {
> + clk_enable(mcbsp2_ick);
> + clk_enable(mcbsp2_fck);
> + }
> + }
> +}
> +static void omap2_mcbsp_free(unsigned int id) {
> + if (cpu_class_is_omap2()) {
> + if (id == OMAP_MCBSP1) {
> + clk_disable(mcbsp1_ick);
> + clk_disable(mcbsp1_fck);
> + } else {
> + clk_disable(mcbsp2_ick);
> + clk_disable(mcbsp2_fck);
> + }
> + }
> +}
> +
> +static const struct omap_mcbsp_board_cfg mcbsp_24xx_cfg = {
> + .check = omap2_mcbsp_check,
> + .request = omap2_mcbsp_request,
> + .free = omap2_mcbsp_free,
> + .mcbsp_infos = {
> + [0] = {
> +#if defined(CONFIG_ARCH_OMAP24XX)
> + .virt_base =
> IO_ADDRESS(OMAP24XX_MCBSP1_BASE), #elif
> +defined(CONFIG_ARCH_OMAP34XX)
> + .virt_base =
> IO_ADDRESS(OMAP34XX_MCBSP1_BASE), #endif
> + .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX,
> + .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX,
> + .rx_irq = INT_24XX_MCBSP1_IRQ_RX,
> + .tx_irq = INT_24XX_MCBSP1_IRQ_TX,
> + },
> + [1] = {
> +#if defined(CONFIG_ARCH_OMAP24XX)
> + .virt_base =
> IO_ADDRESS(OMAP24XX_MCBSP2_BASE), #elif
> +defined(CONFIG_ARCH_OMAP34XX)
> + .virt_base =
> IO_ADDRESS(OMAP34XX_MCBSP2_BASE), #endif
> + .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX,
> + .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX,
> + .rx_irq = INT_24XX_MCBSP2_IRQ_RX,
> + .tx_irq = INT_24XX_MCBSP2_IRQ_TX,
> + },
> + },
> +};
> +
> +int __init omap2_mcbsp_init(void)
> +{
> + mcbsp1_ick = clk_get(0, "mcbsp1_ick");
> + if (IS_ERR(mcbsp1_ick)) {
> + printk(KERN_ERR "mcbsp: could not acquire "
> + "mcbsp1_ick handle.\n");
> + return PTR_ERR(mcbsp1_ick);
> + }
> + mcbsp1_fck = clk_get(0, "mcbsp1_fck");
> + if (IS_ERR(mcbsp1_fck)) {
> + printk(KERN_ERR "mcbsp: could not acquire "
> + "mcbsp1_fck handle.\n");
> + return PTR_ERR(mcbsp1_fck);
> + }
> + mcbsp2_ick = clk_get(0, "mcbsp2_ick");
> + if (IS_ERR(mcbsp2_ick)) {
> + printk(KERN_ERR "mcbsp: could not acquire "
> + "mcbsp2_ick handle.\n");
> + return PTR_ERR(mcbsp2_ick);
> + }
> + mcbsp2_fck = clk_get(0, "mcbsp2_fck");
> + if (IS_ERR(mcbsp2_fck)) {
> + printk(KERN_ERR "mcbsp: could not acquire "
> + "mcbsp2_fck handle.\n");
> + return PTR_ERR(mcbsp2_fck);
> + }
> +
> + if (cpu_class_is_omap2()) {
> + omap_mcbsp_register_board_cfg(&mcbsp_24xx_cfg);
> + omap2_mcbsp2_mux_setup();
> + }
> +
> + return omap_mcbsp_init();
> +}
> +arch_initcall(omap2_mcbsp_init);
> diff --git a/arch/arm/plat-omap/mcbsp.c
> b/arch/arm/plat-omap/mcbsp.c index 053de31..fdba002 100644
> --- a/arch/arm/plat-omap/mcbsp.c
> +++ b/arch/arm/plat-omap/mcbsp.c
> @@ -24,11 +24,8 @@
> #include <linux/io.h>
> #include <linux/irq.h>
>
> -#include <asm/arch/dma.h>
> -#include <asm/arch/mux.h>
> -#include <asm/arch/irqs.h>
> -#include <asm/arch/dsp_common.h>
> #include <asm/arch/mcbsp.h>
> +#include <asm/arch/dma.h>
>
> #ifdef CONFIG_MCBSP_DEBUG
> #define DBG(x...) printk(x)
> @@ -65,17 +62,10 @@ struct omap_mcbsp {
> };
>
> static struct omap_mcbsp mcbsp[OMAP_MAX_MCBSP_COUNT];
> -#ifdef CONFIG_ARCH_OMAP1 -static struct clk *mcbsp_dsp_ck;
> -static struct clk *mcbsp_api_ck; -static struct clk
> *mcbsp_dspxor_ck; -#endif -#ifdef CONFIG_ARCH_OMAP2 -static
> struct clk *mcbsp1_ick; -static struct clk *mcbsp1_fck;
> -static struct clk *mcbsp2_ick; -static struct clk
> *mcbsp2_fck; -#endif
> +static const struct omap_mcbsp_board_cfg *mcbsp_config;
> +
> +#define omap_mcbsp_check_invalid_id(id) (mcbsp_config
> && mcbsp_config->check \
> + &&
> (mcbsp_config->check(id) < 0))
>
> static void omap_mcbsp_dump_reg(u8 id)
> {
> @@ -175,90 +165,13 @@ void omap_mcbsp_config(unsigned int id,
> const struct omap_mcbsp_reg_cfg *config) }
> EXPORT_SYMBOL(omap_mcbsp_config);
>
> -static int omap_mcbsp_check(unsigned int id) -{
> - if (cpu_is_omap730()) {
> - if (id > OMAP_MAX_MCBSP_COUNT - 1) {
> - printk(KERN_ERR "OMAP-McBSP: McBSP%d
> doesn't exist\n",
> - id + 1);
> - return -1;
> - }
> - return 0;
> - }
> -
> - if (cpu_is_omap15xx() || cpu_is_omap16xx() ||
> cpu_is_omap24xx()) {
> - if (id > OMAP_MAX_MCBSP_COUNT) {
> - printk(KERN_ERR "OMAP-McBSP: McBSP%d
> doesn't exist\n",
> - id + 1);
> - return -1;
> - }
> - return 0;
> - }
> -
> - return -1;
> -}
> -
> -#ifdef CONFIG_ARCH_OMAP1
> -static void omap_mcbsp_dsp_request(void) -{
> - if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
> - int ret;
> -
> - ret = omap_dsp_request_mem();
> - if (ret < 0) {
> - printk(KERN_ERR "Could not get dsp
> memory: %i\n", ret);
> - return;
> - }
> -
> - clk_enable(mcbsp_dsp_ck);
> - clk_enable(mcbsp_api_ck);
> -
> - /* enable 12MHz clock to mcbsp 1 & 3 */
> - clk_enable(mcbsp_dspxor_ck);
> -
> - /*
> - * DSP external peripheral reset
> - * FIXME: This should be moved to dsp code
> - */
> - __raw_writew(__raw_readw(DSP_RSTCT2) | 1 | 1 << 1,
> - DSP_RSTCT2);
> - }
> -}
> -
> -static void omap_mcbsp_dsp_free(void)
> -{
> - if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
> - omap_dsp_release_mem();
> - clk_disable(mcbsp_dspxor_ck);
> - clk_disable(mcbsp_dsp_ck);
> - clk_disable(mcbsp_api_ck);
> - }
> -}
> -#endif
> -
> -#ifdef CONFIG_ARCH_OMAP2
> -static void omap2_mcbsp2_mux_setup(void) -{
> - if (cpu_is_omap2420()) {
> - omap_cfg_reg(Y15_24XX_MCBSP2_CLKX);
> - omap_cfg_reg(R14_24XX_MCBSP2_FSX);
> - omap_cfg_reg(W15_24XX_MCBSP2_DR);
> - omap_cfg_reg(V15_24XX_MCBSP2_DX);
> - omap_cfg_reg(V14_24XX_GPIO117);
> - }
> - /*
> - * Need to add MUX settings for OMAP 2430 SDP
> - */
> -}
> -#endif
> -
> /*
> * We can choose between IRQ based or polled IO.
> * This needs to be called before omap_mcbsp_request().
> */
> int omap_mcbsp_set_io_type(unsigned int id,
> omap_mcbsp_io_type_t io_type) {
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return -EINVAL;
>
> spin_lock(&mcbsp[id].lock);
> @@ -282,29 +195,11 @@ int omap_mcbsp_request(unsigned int id) {
> int err;
>
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return -EINVAL;
>
> -#ifdef CONFIG_ARCH_OMAP1
> - /*
> - * On 1510, 1610 and 1710, McBSP1 and McBSP3
> - * are DSP public peripherals.
> - */
> - if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
> - omap_mcbsp_dsp_request();
> -#endif
> -
> -#ifdef CONFIG_ARCH_OMAP2
> - if (cpu_is_omap24xx()) {
> - if (id == OMAP_MCBSP1) {
> - clk_enable(mcbsp1_ick);
> - clk_enable(mcbsp1_fck);
> - } else {
> - clk_enable(mcbsp2_ick);
> - clk_enable(mcbsp2_fck);
> - }
> - }
> -#endif
> + if (mcbsp_config && mcbsp_config->request)
> + mcbsp_config->request(id);
>
> spin_lock(&mcbsp[id].lock);
> if (!mcbsp[id].free) {
> @@ -349,27 +244,11 @@ EXPORT_SYMBOL(omap_mcbsp_request);
>
> void omap_mcbsp_free(unsigned int id)
> {
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return;
>
> -#ifdef CONFIG_ARCH_OMAP1
> - if (cpu_class_is_omap1()) {
> - if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
> - omap_mcbsp_dsp_free();
> - }
> -#endif
> -
> -#ifdef CONFIG_ARCH_OMAP2
> - if (cpu_is_omap24xx()) {
> - if (id == OMAP_MCBSP1) {
> - clk_disable(mcbsp1_ick);
> - clk_disable(mcbsp1_fck);
> - } else {
> - clk_disable(mcbsp2_ick);
> - clk_disable(mcbsp2_fck);
> - }
> - }
> -#endif
> + if (mcbsp_config && mcbsp_config->free)
> + mcbsp_config->free(id);
>
> spin_lock(&mcbsp[id].lock);
> if (mcbsp[id].free) {
> @@ -400,7 +279,7 @@ void omap_mcbsp_start(unsigned int id)
> u32 io_base;
> u16 w;
>
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return;
>
> io_base = mcbsp[id].io_base;
> @@ -435,7 +314,7 @@ void omap_mcbsp_stop(unsigned int id)
> u32 io_base;
> u16 w;
>
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return;
>
> io_base = mcbsp[id].io_base;
> @@ -533,7 +412,7 @@ void omap_mcbsp_xmit_word(unsigned int
> id, u32 word)
> u32 io_base;
> omap_mcbsp_word_length word_length = mcbsp[id].tx_word_length;
>
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return;
>
> io_base = mcbsp[id].io_base;
> @@ -552,7 +431,7 @@ u32 omap_mcbsp_recv_word(unsigned int id)
> u16 word_lsb, word_msb = 0;
> omap_mcbsp_word_length word_length = mcbsp[id].rx_word_length;
>
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return -EINVAL;
>
> io_base = mcbsp[id].io_base;
> @@ -692,7 +571,7 @@ int omap_mcbsp_xmit_buffer(unsigned int
> id, dma_addr_t buffer,
> int dest_port = 0;
> int sync_dev = 0;
>
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return -EINVAL;
>
> if (omap_request_dma(mcbsp[id].dma_tx_sync, "McBSP TX",
> @@ -713,7 +592,7 @@ int omap_mcbsp_xmit_buffer(unsigned int
> id, dma_addr_t buffer,
> src_port = OMAP_DMA_PORT_TIPB;
> dest_port = OMAP_DMA_PORT_EMIFF;
> }
> - if (cpu_is_omap24xx())
> + if (cpu_class_is_omap2())
> sync_dev = mcbsp[id].dma_tx_sync;
>
> omap_set_dma_transfer_params(mcbsp[id].dma_tx_lch,
> @@ -749,7 +628,7 @@ int omap_mcbsp_recv_buffer(unsigned int
> id, dma_addr_t buffer,
> int dest_port = 0;
> int sync_dev = 0;
>
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return -EINVAL;
>
> if (omap_request_dma(mcbsp[id].dma_rx_sync, "McBSP RX",
> @@ -770,7 +649,7 @@ int omap_mcbsp_recv_buffer(unsigned int
> id, dma_addr_t buffer,
> src_port = OMAP_DMA_PORT_TIPB;
> dest_port = OMAP_DMA_PORT_EMIFF;
> }
> - if (cpu_is_omap24xx())
> + if (cpu_class_is_omap2())
> sync_dev = mcbsp[id].dma_rx_sync;
>
> omap_set_dma_transfer_params(mcbsp[id].dma_rx_lch,
> @@ -809,7 +688,7 @@ void omap_mcbsp_set_spi_mode(unsigned int id, {
> struct omap_mcbsp_reg_cfg mcbsp_cfg;
>
> - if (omap_mcbsp_check(id) < 0)
> + if (omap_mcbsp_check_invalid_id(id))
> return;
>
> memset(&mcbsp_cfg, 0, sizeof(struct
> omap_mcbsp_reg_cfg)); @@ -871,162 +750,19 @@
> EXPORT_SYMBOL(omap_mcbsp_set_spi_mode);
> * McBSP1 and McBSP3 are directly mapped on 1610 and 1510.
> * 730 has only 2 McBSP, and both of them are MPU peripherals.
> */
> -struct omap_mcbsp_info {
> - u32 virt_base;
> - u8 dma_rx_sync, dma_tx_sync;
> - u16 rx_irq, tx_irq;
> -};
> -
> -#ifdef CONFIG_ARCH_OMAP730
> -static const struct omap_mcbsp_info mcbsp_730[] = {
> - [0] = { .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 },
> - [1] = { .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 },
> -};
> -#endif
> -
> -#ifdef CONFIG_ARCH_OMAP15XX
> -static const struct omap_mcbsp_info mcbsp_1510[] = {
> - [0] = { .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 },
> - [1] = { .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 },
> - [2] = { .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 },
> -};
> -#endif
> -
> -#if defined(CONFIG_ARCH_OMAP16XX)
> -static const struct omap_mcbsp_info mcbsp_1610[] = {
> - [0] = { .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 },
> - [1] = { .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 },
> - [2] = { .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 },
> -};
> -#endif
> -
> -#if defined(CONFIG_ARCH_OMAP24XX)
> -static const struct omap_mcbsp_info mcbsp_24xx[] = {
> - [0] = { .virt_base = IO_ADDRESS(OMAP24XX_MCBSP1_BASE),
> - .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX,
> - .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX,
> - .rx_irq = INT_24XX_MCBSP1_IRQ_RX,
> - .tx_irq = INT_24XX_MCBSP1_IRQ_TX,
> - },
> - [1] = { .virt_base = IO_ADDRESS(OMAP24XX_MCBSP2_BASE),
> - .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX,
> - .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX,
> - .rx_irq = INT_24XX_MCBSP2_IRQ_RX,
> - .tx_irq = INT_24XX_MCBSP2_IRQ_TX,
> - },
> -};
> -#endif
> -
> -static int __init omap_mcbsp_init(void)
> +int __init omap_mcbsp_init(void)
> {
> - int mcbsp_count = 0, i;
> - static const struct omap_mcbsp_info *mcbsp_info;
> + int i;
>
> - printk(KERN_INFO "Initializing OMAP McBSP system\n");
> -
> -#ifdef CONFIG_ARCH_OMAP1
> - mcbsp_dsp_ck = clk_get(0, "dsp_ck");
> - if (IS_ERR(mcbsp_dsp_ck)) {
> - printk(KERN_ERR "mcbsp: could not acquire
> dsp_ck handle.\n");
> - return PTR_ERR(mcbsp_dsp_ck);
> - }
> - mcbsp_api_ck = clk_get(0, "api_ck");
> - if (IS_ERR(mcbsp_api_ck)) {
> - printk(KERN_ERR "mcbsp: could not acquire
> api_ck handle.\n");
> - return PTR_ERR(mcbsp_api_ck);
> - }
> - mcbsp_dspxor_ck = clk_get(0, "dspxor_ck");
> - if (IS_ERR(mcbsp_dspxor_ck)) {
> - printk(KERN_ERR "mcbsp: could not acquire
> dspxor_ck handle.\n");
> - return PTR_ERR(mcbsp_dspxor_ck);
> - }
> -#endif
> -#ifdef CONFIG_ARCH_OMAP2
> - mcbsp1_ick = clk_get(0, "mcbsp1_ick");
> - if (IS_ERR(mcbsp1_ick)) {
> - printk(KERN_ERR "mcbsp: could not acquire "
> - "mcbsp1_ick handle.\n");
> - return PTR_ERR(mcbsp1_ick);
> - }
> - mcbsp1_fck = clk_get(0, "mcbsp1_fck");
> - if (IS_ERR(mcbsp1_fck)) {
> - printk(KERN_ERR "mcbsp: could not acquire "
> - "mcbsp1_fck handle.\n");
> - return PTR_ERR(mcbsp1_fck);
> - }
> - mcbsp2_ick = clk_get(0, "mcbsp2_ick");
> - if (IS_ERR(mcbsp2_ick)) {
> - printk(KERN_ERR "mcbsp: could not acquire "
> - "mcbsp2_ick handle.\n");
> - return PTR_ERR(mcbsp2_ick);
> - }
> - mcbsp2_fck = clk_get(0, "mcbsp2_fck");
> - if (IS_ERR(mcbsp2_fck)) {
> - printk(KERN_ERR "mcbsp: could not acquire "
> - "mcbsp2_fck handle.\n");
> - return PTR_ERR(mcbsp2_fck);
> + if (!mcbsp_config) {
> + printk(KERN_ERR "McBSP initialized without
> configuration\n");
> + return -EINVAL;
> }
> -#endif
>
> -#ifdef CONFIG_ARCH_OMAP730
> - if (cpu_is_omap730()) {
> - mcbsp_info = mcbsp_730;
> - mcbsp_count = ARRAY_SIZE(mcbsp_730);
> - }
> -#endif
> -#ifdef CONFIG_ARCH_OMAP15XX
> - if (cpu_is_omap15xx()) {
> - mcbsp_info = mcbsp_1510;
> - mcbsp_count = ARRAY_SIZE(mcbsp_1510);
> - }
> -#endif
> -#if defined(CONFIG_ARCH_OMAP16XX)
> - if (cpu_is_omap16xx()) {
> - mcbsp_info = mcbsp_1610;
> - mcbsp_count = ARRAY_SIZE(mcbsp_1610);
> - }
> -#endif
> -#if defined(CONFIG_ARCH_OMAP24XX)
> - if (cpu_is_omap24xx()) {
> - mcbsp_info = mcbsp_24xx;
> - mcbsp_count = ARRAY_SIZE(mcbsp_24xx);
> - omap2_mcbsp2_mux_setup();
> - }
> -#endif
> + printk(KERN_INFO "Initializing OMAP McBSP system\n");
> +
> for (i = 0; i < OMAP_MAX_MCBSP_COUNT ; i++) {
> - if (i >= mcbsp_count) {
> + if (i >= ARRAY_SIZE(mcbsp_config->mcbsp_infos)) {
> mcbsp[i].io_base = 0;
> mcbsp[i].free = 0;
> continue;
> @@ -1036,17 +772,29 @@ static int __init omap_mcbsp_init(void)
> mcbsp[i].dma_tx_lch = -1;
> mcbsp[i].dma_rx_lch = -1;
>
> - mcbsp[i].io_base = mcbsp_info[i].virt_base;
> + mcbsp[i].io_base =
> mcbsp_config->mcbsp_infos[i].virt_base;
> /* Default I/O is IRQ based */
> mcbsp[i].io_type = OMAP_MCBSP_IRQ_IO;
> - mcbsp[i].tx_irq = mcbsp_info[i].tx_irq;
> - mcbsp[i].rx_irq = mcbsp_info[i].rx_irq;
> - mcbsp[i].dma_rx_sync = mcbsp_info[i].dma_rx_sync;
> - mcbsp[i].dma_tx_sync = mcbsp_info[i].dma_tx_sync;
> + mcbsp[i].tx_irq = mcbsp_config->mcbsp_infos[i].tx_irq;
> + mcbsp[i].rx_irq = mcbsp_config->mcbsp_infos[i].rx_irq;
> + mcbsp[i].dma_rx_sync =
> mcbsp_config->mcbsp_infos[i].dma_rx_sync;
> + mcbsp[i].dma_tx_sync =
> mcbsp_config->mcbsp_infos[i].dma_tx_sync;
> spin_lock_init(&mcbsp[i].lock);
> }
>
> return 0;
> }
>
> -arch_initcall(omap_mcbsp_init);
> +int omap_mcbsp_register_board_cfg(const struct omap_mcbsp_board_cfg
> +*config) {
> + if (!config || !config->request || !config->free) {
> + printk(KERN_ERR "Invalid McBSP configuration\n");
> + return -EINVAL;
> + }
> +
> + mcbsp_config = config;
> +
> + return 0;
> +
> +}
> +
> diff --git a/include/asm-arm/arch-omap/mcbsp.h
> b/include/asm-arm/arch-omap/mcbsp.h
> index b53c3b2..fc53a45 100644
> --- a/include/asm-arm/arch-omap/mcbsp.h
> +++ b/include/asm-arm/arch-omap/mcbsp.h
> @@ -40,6 +40,9 @@
> #define OMAP24XX_MCBSP1_BASE 0x48074000
> #define OMAP24XX_MCBSP2_BASE 0x48076000
>
> +#define OMAP34XX_MCBSP1_BASE 0x48074000
> +#define OMAP34XX_MCBSP2_BASE 0x49022000
> +
> #if defined(CONFIG_ARCH_OMAP15XX) ||
> defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP730)
>
> #define OMAP_MCBSP_REG_DRR2 0x00
> @@ -298,6 +301,22 @@ struct omap_mcbsp_spi_cfg {
> omap_mcbsp_word_length word_length;
> };
>
> +/* Board specific configuration */
> +struct omap_mcbsp_info {
> + u32 virt_base;
> + u8 dma_rx_sync, dma_tx_sync;
> + u16 rx_irq, tx_irq;
> +};
> +
> +struct omap_mcbsp_board_cfg {
> + void (*request)(unsigned int);
> + void (*free)(unsigned int);
> + int (*check)(unsigned int);
> + struct omap_mcbsp_info mcbsp_infos[OMAP_MAX_MCBSP_COUNT];
> +};
> +
> +int omap_mcbsp_init(void);
> +int omap_mcbsp_register_board_cfg(const struct omap_mcbsp_board_cfg
> +*config);
> void omap_mcbsp_config(unsigned int id, const struct
> omap_mcbsp_reg_cfg * config); int
> omap_mcbsp_request(unsigned int id); void
> omap_mcbsp_free(unsigned int id);
> --
> 1.5.5-rc3.GIT
>
> --
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