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Diffstat (limited to 'target/device/Atmel/misc-patches/linux-2.6.24-avr32-ac97-reset.patch')
-rw-r--r--target/device/Atmel/misc-patches/linux-2.6.24-avr32-ac97-reset.patch289
1 files changed, 289 insertions, 0 deletions
diff --git a/target/device/Atmel/misc-patches/linux-2.6.24-avr32-ac97-reset.patch b/target/device/Atmel/misc-patches/linux-2.6.24-avr32-ac97-reset.patch
new file mode 100644
index 000000000..eed5f2814
--- /dev/null
+++ b/target/device/Atmel/misc-patches/linux-2.6.24-avr32-ac97-reset.patch
@@ -0,0 +1,289 @@
+diff --git a/sound/avr32/ac97c.c b/sound/avr32/ac97c.c
+index 0ec0b1c..3a58375 100644
+--- a/sound/avr32/ac97c.c
++++ b/sound/avr32/ac97c.c
+@@ -25,6 +25,8 @@
+ #include <sound/ac97_codec.h>
+ #include <sound/memalloc.h>
+
++#include <asm/gpio.h>
++#include <asm/arch/board.h>
+ #include <asm/dma-controller.h>
+
+ #include "ac97c.h"
+@@ -37,6 +39,7 @@ struct atmel_ac97_dma_info {
+ struct dma_request_cyclic req_rx;
+ unsigned short rx_periph_id;
+ unsigned short tx_periph_id;
++ unsigned short controller;
+ };
+
+ struct atmel_ac97 {
+@@ -51,6 +54,7 @@ struct atmel_ac97 {
+ struct snd_ac97_bus *ac97_bus;
+ int opened;
+ int period;
++ int reset_pin;
+ u64 cur_format;
+ unsigned int cur_rate;
+ struct clk *mck;
+@@ -692,6 +696,12 @@ timed_out:
+
+ static void snd_atmel_ac97_reset(struct atmel_ac97 *chip)
+ {
++ if (chip->reset_pin >= 0) {
++ gpio_set_value(chip->reset_pin, 0);
++ udelay(5);
++ gpio_set_value(chip->reset_pin, 1);
++ }
++
+ ac97c_writel(chip, MR, AC97C_MR_WRST);
+ mdelay(1);
+ ac97c_writel(chip, MR, AC97C_MR_ENA);
+@@ -727,6 +737,7 @@ static int __devinit snd_atmel_ac97_create(struct snd_card *card,
+ .read = snd_atmel_ac97_read,
+ };
+ struct atmel_ac97 *chip = get_chip(card);
++ struct ac97c_platform_data *pdata;
+ struct resource *regs;
+ struct clk *mck;
+ int err;
+@@ -735,6 +746,29 @@ static int __devinit snd_atmel_ac97_create(struct snd_card *card,
+ if (!regs)
+ return -ENXIO;
+
++ pdata = pdev->dev.platform_data;
++ if (pdata) {
++ chip->reset_pin = pdata->reset_pin;
++
++ if (chip->reset_pin >= 0) {
++ if (gpio_request(chip->reset_pin,
++ chip->card->shortname)) {
++ dev_dbg(&pdev->dev,
++ "ac97: reset pin "
++ "not available\n");
++ chip->reset_pin = -1;
++ } else {
++ gpio_direction_output(chip->reset_pin, 1);
++ }
++ }
++
++ chip->dma.rx_periph_id = pdata->dma_rx_periph_id;
++ chip->dma.tx_periph_id = pdata->dma_tx_periph_id;
++ chip->dma.controller = pdata->dma_controller_id;
++ } else {
++ return -ENXIO;
++ }
++
+ mck = clk_get(&pdev->dev, "pclk");
+ if (IS_ERR(mck))
+ return PTR_ERR(mck);
+@@ -789,23 +823,19 @@ static int __devinit snd_atmel_ac97_probe(struct platform_device *pdev)
+ if (err)
+ goto out_free_card;
+
+- /* TODO: Get this information from the platform device */
+- chip->dma.req_tx.req.dmac = find_dma_controller(0);
++ chip->dma.req_tx.req.dmac = find_dma_controller(chip->dma.controller);
+ if (!chip->dma.req_tx.req.dmac) {
+ dev_dbg(&chip->pdev->dev, "DMA controller for TX missing\n");
+ err = -ENODEV;
+ goto out_free_card;
+ }
+- chip->dma.req_rx.req.dmac = find_dma_controller(0);
++ chip->dma.req_rx.req.dmac = find_dma_controller(chip->dma.controller);
+ if (!chip->dma.req_rx.req.dmac) {
+ dev_dbg(&chip->pdev->dev, "DMA controller for RX missing\n");
+ err = -ENODEV;
+ goto out_free_card;
+ }
+
+- chip->dma.rx_periph_id = 3;
+- chip->dma.tx_periph_id = 4;
+-
+ ch = dma_alloc_channel(chip->dma.req_tx.req.dmac);
+ if (ch < 0) {
+ dev_dbg(&chip->pdev->dev,
+--
+1.5.2.5
+diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
+index 06795d0..58f3841 100644
+--- a/arch/avr32/mach-at32ap/at32ap700x.c
++++ b/arch/avr32/mach-at32ap/at32ap700x.c
+@@ -1552,12 +1552,15 @@ static struct clk atmel_ac97c0_pclk = {
+ .index = 10,
+ };
+
+-struct platform_device *__init at32_add_device_ac97c(unsigned int id)
++struct platform_device *__init
++at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data)
+ {
+ struct platform_device *pdev;
+
+ if (id != 0)
+ return NULL;
++ if (!data)
++ return NULL;
+
+ pdev = platform_device_alloc("atmel_ac97c", id);
+ if (!pdev)
+@@ -1567,10 +1570,17 @@ struct platform_device *__init at32_add_device_ac97c(unsigned int id)
+ ARRAY_SIZE(atmel_ac97c0_resource)))
+ goto err_add_resources;
+
+- select_peripheral(PB(20), PERIPH_B, 0); /* SYNC */
+- select_peripheral(PB(21), PERIPH_B, 0); /* SDO */
+- select_peripheral(PB(22), PERIPH_B, 0); /* SDI */
+- select_peripheral(PB(23), PERIPH_B, 0); /* SCLK */
++ if (platform_device_add_data(pdev, data,
++ sizeof(struct ac97c_platform_data)))
++ goto err_add_resources;
++
++ select_peripheral(PB(20), PERIPH_B, 0); /* SDO */
++ select_peripheral(PB(21), PERIPH_B, 0); /* SYNC */
++ select_peripheral(PB(22), PERIPH_B, 0); /* SCLK */
++ select_peripheral(PB(23), PERIPH_B, 0); /* SDI */
++
++ if (data->reset_pin != GPIO_PIN_NONE)
++ at32_select_gpio(data->reset_pin, 0);
+
+ atmel_ac97c0_pclk.dev = &pdev->dev;
+
+diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
+index 8816b66..0386a0e 100644
+--- a/include/asm-avr32/arch-at32ap/board.h
++++ b/include/asm-avr32/arch-at32ap/board.h
+@@ -76,7 +76,16 @@ struct mci_platform_data {
+ };
+ struct platform_device *
+ at32_add_device_mci(unsigned int id, struct mci_platform_data *data);
+-struct platform_device *at32_add_device_ac97c(unsigned int id);
++
++struct ac97c_platform_data {
++ unsigned short dma_rx_periph_id;
++ unsigned short dma_tx_periph_id;
++ unsigned short dma_controller_id;
++ int reset_pin;
++};
++struct platform_device *
++at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data);
++
+ struct platform_device *at32_add_device_abdac(unsigned int id);
+
+ struct cf_platform_data {
+--
+1.5.2.5
+diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
+index 90436fa..eba6f89 100644
+--- a/arch/avr32/boards/atstk1000/atstk1002.c
++++ b/arch/avr32/boards/atstk1000/atstk1002.c
+@@ -151,6 +151,15 @@ static void __init set_hw_addr(struct platform_device *pdev)
+ clk_put(pclk);
+ }
+
++#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
++static struct ac97c_platform_data __initdata ac97c0_data = {
++ .dma_rx_periph_id = 3,
++ .dma_tx_periph_id = 4,
++ .dma_controller_id = 0,
++ .reset_pin = GPIO_PIN_NONE,
++};
++#endif
++
+ #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+ static void __init atstk1002_setup_extdac(void)
+ {
+@@ -253,7 +262,7 @@ static int __init atstk1002_init(void)
+ #endif
+ at32_add_device_usba(0, NULL);
+ #ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
+- at32_add_device_ac97c(0);
++ at32_add_device_ac97c(0, &ac97c0_data);
+ #else
+ at32_add_device_abdac(0);
+ #endif
+diff --git a/arch/avr32/boards/atstk1000/atstk1003.c b/arch/avr32/boards/atstk1000/atstk1003.c
+index 768d204..2564e3c 100644
+--- a/arch/avr32/boards/atstk1000/atstk1003.c
++++ b/arch/avr32/boards/atstk1000/atstk1003.c
+@@ -72,6 +72,15 @@ static struct cf_platform_data __initdata cf0_data = {
+ .cs = 4,
+ };
+
++#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
++static struct ac97c_platform_data __initdata ac97c0_data = {
++ .dma_rx_periph_id = 3,
++ .dma_tx_periph_id = 4,
++ .dma_controller_id = 0,
++ .reset_pin = GPIO_PIN_NONE,
++};
++#endif
++
+ #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+ static void __init atstk1003_setup_extdac(void)
+ {
+@@ -164,7 +173,7 @@ static int __init atstk1003_init(void)
+ #endif
+ at32_add_device_usba(0, NULL);
+ #ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
+- at32_add_device_ac97c(0);
++ at32_add_device_ac97c(0, &ac97c0_data);
+ #else
+ at32_add_device_abdac(0);
+ #endif
+diff --git a/arch/avr32/boards/atstk1000/atstk1004.c b/arch/avr32/boards/atstk1000/atstk1004.c
+index 96015dd..3c25a6f 100644
+--- a/arch/avr32/boards/atstk1000/atstk1004.c
++++ b/arch/avr32/boards/atstk1000/atstk1004.c
+@@ -64,6 +64,15 @@ static struct spi_board_info spi1_board_info[] __initdata = { {
+ } };
+ #endif
+
++#ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
++static struct ac97c_platform_data __initdata ac97c0_data = {
++ .dma_rx_periph_id = 3,
++ .dma_tx_periph_id = 4,
++ .dma_controller_id = 0,
++ .reset_pin = GPIO_PIN_NONE,
++};
++#endif
++
+ #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC
+ static void __init atstk1004_setup_extdac(void)
+ {
+@@ -136,7 +145,7 @@ static int __init atstk1004_init(void)
+ fbmem_start, fbmem_size);
+ at32_add_device_usba(0, NULL);
+ #ifdef CONFIG_BOARD_ATSTK100X_ENABLE_AC97
+- at32_add_device_ac97c(0);
++ at32_add_device_ac97c(0, &ac97c0_data);
+ #else
+ at32_add_device_abdac(0);
+ #endif
+--
+1.5.2.5
+--- a/arch/avr32/boards/atngw100/setup.c 2008-02-26 12:27:37.000000000 -0500
++++ b/arch/avr32/boards/atngw100/setup.c 2008-02-26 12:26:08.000000000 -0500
+@@ -201,6 +201,13 @@ static struct platform_device i2c_gpio_d
+ };
+ #endif
+
++static struct ac97c_platform_data __initdata ac97c0_data = {
++ .dma_rx_periph_id = 3,
++ .dma_tx_periph_id = 4,
++ .dma_controller_id = 0,
++ .reset_pin = GPIO_PIN_NONE, // change to whatever pin you want, i.e. GPIO_PIN_PB(18)
++};
++
+ static int __init atngw100_init(void)
+ {
+ unsigned i;
+@@ -222,7 +229,7 @@ static int __init atngw100_init(void)
+ at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+ at32_add_device_mci(0, &mci0_data);
+ at32_add_device_usba(0, NULL);
+- at32_add_device_ac97c(0);
++ at32_add_device_ac97c(0, &ac97c0_data);
+
+ for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) {
+ at32_select_gpio(ngw_leds[i].gpio,
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-06-03 04:41:36 +0200