From 8854cb49a249c8df883874e64dfbc25eaa69a6ee Mon Sep 17 00:00:00 2001 From: eric miao Date: Tue, 20 Nov 2007 01:35:08 +0100 Subject: [ARM] 4652/1: pxa: fix a typo of pxa27x usb host clk definition CKEN_USBHOST should be used instead of CKEN_USB for usb host Signed-off-by: eric miao Signed-off-by: Russell King --- arch/arm/mach-pxa/pxa27x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index d0f2b597db1..8e126e6b74c 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -146,7 +146,7 @@ static struct clk pxa27x_clks[] = { INIT_CKEN("MMCCLK", MMC, 19500000, 0, &pxa_device_mci.dev), INIT_CKEN("FICPCLK", FICP, 48000000, 0, &pxa_device_ficp.dev), - INIT_CKEN("USBCLK", USB, 48000000, 0, &pxa27x_device_ohci.dev), + INIT_CKEN("USBCLK", USBHOST, 48000000, 0, &pxa27x_device_ohci.dev), INIT_CKEN("I2CCLK", PWRI2C, 13000000, 0, &pxa27x_device_i2c_power.dev), INIT_CKEN("KBDCLK", KEYPAD, 32768, 0, NULL), -- cgit v1.2.3 From 1f809226b9f4d3a89e42212fed7b482e8b30f77c Mon Sep 17 00:00:00 2001 From: Roel Kluin <12o3l@tiscali.nl> Date: Wed, 21 Nov 2007 14:51:47 -0800 Subject: [ARM] PXA ssp: unlock when ssp tries to close an invalid port Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Andrew Morton Signed-off-by: Russell King --- arch/arm/mach-pxa/ssp.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c index 71766ac0328..422afee8816 100644 --- a/arch/arm/mach-pxa/ssp.c +++ b/arch/arm/mach-pxa/ssp.c @@ -309,6 +309,7 @@ void ssp_exit(struct ssp_dev *dev) if (dev->port > PXA_SSP_PORTS || dev->port == 0) { printk(KERN_WARNING "SSP: tried to close invalid port\n"); + mutex_unlock(&mutex); return; } -- cgit v1.2.3 From a95c729b7484d2bbb9ab6beef4865641e73deb99 Mon Sep 17 00:00:00 2001 From: Andrew Victor Date: Mon, 19 Nov 2007 11:52:09 +0100 Subject: [ARM] 4604/2: AT91: Master clock divistor on SAM9 The calculation for the Master clock divisor (MDIV) is different on the SAM9 processors than on the AT91RM9200. Orignal patch from Sascha Erlacher. Also use the defined AT91_PMC_PRES instead of hard-coded bitmasks. Signed-off-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/clock.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c index 848efb2a4eb..57c3b647ce8 100644 --- a/arch/arm/mach-at91/clock.c +++ b/arch/arm/mach-at91/clock.c @@ -351,7 +351,7 @@ static void init_programmable_clock(struct clk *clk) pckr = at91_sys_read(AT91_PMC_PCKR(clk->id)); parent = at91_css_to_clk(pckr & AT91_PMC_CSS); clk->parent = parent; - clk->rate_hz = parent->rate_hz / (1 << ((pckr >> 2) & 3)); + clk->rate_hz = parent->rate_hz / (1 << ((pckr & AT91_PMC_PRES) >> 2)); } #endif /* CONFIG_AT91_PROGRAMMABLE_CLOCKS */ @@ -587,8 +587,11 @@ int __init at91_clock_init(unsigned long main_clock) mckr = at91_sys_read(AT91_PMC_MCKR); mck.parent = at91_css_to_clk(mckr & AT91_PMC_CSS); freq = mck.parent->rate_hz; - freq /= (1 << ((mckr >> 2) & 3)); /* prescale */ - mck.rate_hz = freq / (1 + ((mckr >> 8) & 3)); /* mdiv */ + freq /= (1 << ((mckr & AT91_PMC_PRES) >> 2)); /* prescale */ + if (cpu_is_at91rm9200()) + mck.rate_hz = freq / (1 + ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ + else + mck.rate_hz = freq / (1 << ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ /* Register the PMC's standard clocks */ for (i = 0; i < ARRAY_SIZE(standard_pmc_clocks); i++) -- cgit v1.2.3 From f230d3f53d72d05bcb5666ab7e2eccd49c8b3a15 Mon Sep 17 00:00:00 2001 From: Andrew Victor Date: Mon, 19 Nov 2007 13:47:20 +0100 Subject: [ARM] 4650/1: AT91: New-style init of I2C, support for i2c-gpio The AT91 I2C driver is currently marked as "broken" due to hardware issues. This patch enables AT91-based platforms to also use the bitbanged GPIO for I2C. This updates platform setup logic (setting up an i2c-gpio device using the same pins as the i2c-at91 device, unless only the BROKEN driver is enabled). Also make use of the new-style initialization of I2C devices using i2c_register_board_info(). Signed-off-by: David Brownell Signed-off-by: Andrew Victor Signed-off-by: Russell King --- arch/arm/mach-at91/at91rm9200_devices.c | 41 +++++++++++++++++++++++++++--- arch/arm/mach-at91/at91sam9260_devices.c | 42 ++++++++++++++++++++++++++++--- arch/arm/mach-at91/at91sam9261_devices.c | 42 ++++++++++++++++++++++++++++--- arch/arm/mach-at91/at91sam9263_devices.c | 42 ++++++++++++++++++++++++++++--- arch/arm/mach-at91/at91sam9rl_devices.c | 43 +++++++++++++++++++++++++++++--- arch/arm/mach-at91/board-carmeva.c | 2 +- arch/arm/mach-at91/board-csb337.c | 11 +++----- arch/arm/mach-at91/board-csb637.c | 2 +- arch/arm/mach-at91/board-dk.c | 15 ++++++++++- arch/arm/mach-at91/board-eb9200.c | 10 +++++++- arch/arm/mach-at91/board-ek.c | 2 +- arch/arm/mach-at91/board-kafa.c | 2 +- arch/arm/mach-at91/board-kb9202.c | 2 +- arch/arm/mach-at91/board-picotux200.c | 2 +- arch/arm/mach-at91/board-sam9260ek.c | 2 +- arch/arm/mach-at91/board-sam9261ek.c | 2 +- arch/arm/mach-at91/board-sam9263ek.c | 2 +- arch/arm/mach-at91/board-sam9rlek.c | 2 +- 18 files changed, 231 insertions(+), 35 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index 0417c165d50..9296833f91c 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -14,6 +14,7 @@ #include #include +#include #include #include @@ -435,7 +436,40 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {} * TWI (i2c) * -------------------------------------------------------------------- */ -#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + +static struct i2c_gpio_platform_data pdata = { + .sda_pin = AT91_PIN_PA25, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PA26, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91rm9200_twi_device = { + .name = "i2c-gpio", + .id = -1, + .dev.platform_data = &pdata, +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + at91_set_GPIO_periph(AT91_PIN_PA25, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PA25, 1); + + at91_set_GPIO_periph(AT91_PIN_PA26, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PA26, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91rm9200_twi_device); +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) static struct resource twi_resources[] = { [0] = { @@ -457,7 +491,7 @@ static struct platform_device at91rm9200_twi_device = { .num_resources = ARRAY_SIZE(twi_resources), }; -void __init at91_add_device_i2c(void) +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) { /* pins used for TWI interface */ at91_set_A_periph(AT91_PIN_PA25, 0); /* TWD */ @@ -466,10 +500,11 @@ void __init at91_add_device_i2c(void) at91_set_A_periph(AT91_PIN_PA26, 0); /* TWCK */ at91_set_multi_drive(AT91_PIN_PA26, 1); + i2c_register_board_info(0, devices, nr_devices); platform_device_register(&at91rm9200_twi_device); } #else -void __init at91_add_device_i2c(void) {} +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} #endif diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index ffd3154c1e5..3091bf47d8c 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -13,6 +13,7 @@ #include #include +#include #include #include @@ -352,7 +353,41 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {} * TWI (i2c) * -------------------------------------------------------------------- */ -#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ + +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + +static struct i2c_gpio_platform_data pdata = { + .sda_pin = AT91_PIN_PA23, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PA24, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91sam9260_twi_device = { + .name = "i2c-gpio", + .id = -1, + .dev.platform_data = &pdata, +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PA23, 1); + + at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PA24, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91sam9260_twi_device); +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) static struct resource twi_resources[] = { [0] = { @@ -374,7 +409,7 @@ static struct platform_device at91sam9260_twi_device = { .num_resources = ARRAY_SIZE(twi_resources), }; -void __init at91_add_device_i2c(void) +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) { /* pins used for TWI interface */ at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */ @@ -383,10 +418,11 @@ void __init at91_add_device_i2c(void) at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */ at91_set_multi_drive(AT91_PIN_PA24, 1); + i2c_register_board_info(0, devices, nr_devices); platform_device_register(&at91sam9260_twi_device); } #else -void __init at91_add_device_i2c(void) {} +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} #endif diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index 3576595b494..64979a9023c 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -14,7 +14,9 @@ #include #include +#include +#include #include