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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-21 14:37:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-21 14:37:00 -0700
commit70ada77920723fbc2b35e9b301022fb1e166b41b (patch)
treef30f24135eff89020d8ae21d6c7a83cf5c812585 /arch/arm
parentb22793f7fdc38d73c4bb4299a313deef56dcfe66 (diff)
parent2764c500be0c1f057349ee6c81557239de060f87 (diff)
downloadlinux-70ada77920723fbc2b35e9b301022fb1e166b41b.tar.bz2
Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: (53 commits) spi/omap2_mcspi: Verify TX reg is empty after TX only xfer with DMA spi/omap2_mcspi: disable channel after TX_ONLY transfer in PIO mode spi/bfin_spi: namespace local structs spi/bfin_spi: init early spi/bfin_spi: check per-transfer bits_per_word spi/bfin_spi: warn when CS is driven by hardware (CPHA=0) spi/bfin_spi: cs should be always low when a new transfer begins spi/bfin_spi: fix typo in comment spi/bfin_spi: reject unsupported SPI modes spi/bfin_spi: use dma_disable_irq_nosync() in irq handler spi/bfin_spi: combine duplicate SPI_CTL read/write logic spi/bfin_spi: reset ctl_reg bits when setup is run again on a device spi/bfin_spi: push all size checks into the transfer function spi/bfin_spi: use nosync when disabling the IRQ from the IRQ handler spi/bfin_spi: sync hardware state before reprogramming everything spi/bfin_spi: save/restore state when suspending/resuming spi/bfin_spi: redo GPIO CS handling Blackfin: SPI: expand SPI bitmasks spi/bfin_spi: use the SPI namespaced bit names spi/bfin_spi: drop extra memory we don't need ...
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-lpc32xx/phy3250.c7
-rw-r--r--arch/arm/mach-u300/dummyspichip.c5
-rw-r--r--arch/arm/mach-u300/spi.c10
-rw-r--r--arch/arm/mach-ux500/board-mop500.c8
-rw-r--r--arch/arm/plat-samsung/include/plat/s3c64xx-spi.h3
5 files changed, 8 insertions, 25 deletions
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
index bc9a42da2145..0c936cf5675a 100644
--- a/arch/arm/mach-lpc32xx/phy3250.c
+++ b/arch/arm/mach-lpc32xx/phy3250.c
@@ -172,18 +172,12 @@ static void phy3250_spi_cs_set(u32 control)
}
static struct pl022_config_chip spi0_chip_info = {
- .lbm = LOOPBACK_DISABLED,
.com_mode = INTERRUPT_TRANSFER,
.iface = SSP_INTERFACE_MOTOROLA_SPI,
.hierarchy = SSP_MASTER,
.slave_tx_disable = 0,
- .endian_tx = SSP_TX_LSB,
- .endian_rx = SSP_RX_LSB,
- .data_size = SSP_DATA_BITS_8,
.rx_lev_trig = SSP_RX_4_OR_MORE_ELEM,
.tx_lev_trig = SSP_TX_4_OR_MORE_EMPTY_LOC,
- .clk_phase = SSP_CLK_FIRST_EDGE,
- .clk_pol = SSP_CLK_POL_IDLE_LOW,
.ctrl_len = SSP_BITS_8,
.wait_state = SSP_MWIRE_WAIT_ZERO,
.duplex = SSP_MICROWIRE_CHANNEL_FULL_DUPLEX,
@@ -239,6 +233,7 @@ static int __init phy3250_spi_board_register(void)
.max_speed_hz = 5000000,
.bus_num = 0,
.chip_select = 0,
+ .mode = SPI_MODE_0,
.platform_data = &eeprom,
.controller_data = &spi0_chip_info,
},
diff --git a/arch/arm/mach-u300/dummyspichip.c b/arch/arm/mach-u300/dummyspichip.c
index 5f55012b7c9e..03f793612594 100644
--- a/arch/arm/mach-u300/dummyspichip.c
+++ b/arch/arm/mach-u300/dummyspichip.c
@@ -46,7 +46,6 @@ static ssize_t dummy_looptest(struct device *dev,
* struct, this is just used here to alter the behaviour of the chip
* in order to perform tests.
*/
- struct pl022_config_chip *chip_info = spi->controller_data;
int status;
u8 txbuf[14] = {0xDE, 0xAD, 0xBE, 0xEF, 0x2B, 0xAD,
0xCA, 0xFE, 0xBA, 0xBE, 0xB1, 0x05,
@@ -72,7 +71,7 @@ static ssize_t dummy_looptest(struct device *dev,
* Force chip to 8 bit mode
* WARNING: NEVER DO THIS IN REAL DRIVER CODE, THIS SHOULD BE STATIC!
*/
- chip_info->data_size = SSP_DATA_BITS_8;
+ spi->bits_per_word = 8;
/* You should NOT DO THIS EITHER */
spi->master->setup(spi);
@@ -159,7 +158,7 @@ static ssize_t dummy_looptest(struct device *dev,
* Force chip to 16 bit mode
* WARNING: NEVER DO THIS IN REAL DRIVER CODE, THIS SHOULD BE STATIC!
*/
- chip_info->data_size = SSP_DATA_BITS_16;
+ spi->bits_per_word = 16;
/* You should NOT DO THIS EITHER */
spi->master->setup(spi);
diff --git a/arch/arm/mach-u300/spi.c b/arch/arm/mach-u300/spi.c
index f0e887bea30e..edb2c0d255c2 100644
--- a/arch/arm/mach-u300/spi.c
+++ b/arch/arm/mach-u300/spi.c
@@ -30,8 +30,6 @@ static void select_dummy_chip(u32 chipselect)
}
struct pl022_config_chip dummy_chip_info = {
- /* Nominally this is LOOPBACK_DISABLED, but this is our dummy chip! */
- .lbm = LOOPBACK_ENABLED,
/*
* available POLLING_TRANSFER and INTERRUPT_TRANSFER,
* DMA_TRANSFER does not work
@@ -42,14 +40,8 @@ struct pl022_config_chip dummy_chip_info = {
.hierarchy = SSP_MASTER,
/* 0 = drive TX even as slave, 1 = do not drive TX as slave */
.slave_tx_disable = 0,
- /* LSB first */
- .endian_tx = SSP_TX_LSB,
- .endian_rx = SSP_RX_LSB,
- .data_size = SSP_DATA_BITS_8, /* used to be 12 in some default */
.rx_lev_trig = SSP_RX_1_OR_MORE_ELEM,
.tx_lev_trig = SSP_TX_1_OR_MORE_EMPTY_LOC,
- .clk_phase = SSP_CLK_SECOND_EDGE,
- .clk_pol = SSP_CLK_POL_IDLE_LOW,
.ctrl_len = SSP_BITS_12,
.wait_state = SSP_MWIRE_WAIT_ZERO,
.duplex = SSP_MICROWIRE_CHANNEL_FULL_DUPLEX,
@@ -75,7 +67,7 @@ static struct spi_board_info u300_spi_devices[] = {
.bus_num = 0, /* Only one bus on this chip */
.chip_select = 0,
/* Means SPI_CS_HIGH, change if e.g low CS */
- .mode = 0,
+ .mode = SPI_MODE_1 | SPI_LSB_FIRST | SPI_LOOP,
},
#endif
};
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 0e8fd135a57d..219ae0ca4eef 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -55,19 +55,13 @@ static void ab4500_spi_cs_control(u32 command)
}
struct pl022_config_chip ab4500_chip_info = {
- .lbm = LOOPBACK_DISABLED,
.com_mode = INTERRUPT_TRANSFER,
.iface = SSP_INTERFACE_MOTOROLA_SPI,
/* we can act as master only */
.hierarchy = SSP_MASTER,
.slave_tx_disable = 0,
- .endian_rx = SSP_RX_MSB,
- .endian_tx = SSP_TX_MSB,
- .data_size = SSP_DATA_BITS_24,
.rx_lev_trig = SSP_RX_1_OR_MORE_ELEM,
.tx_lev_trig = SSP_TX_1_OR_MORE_EMPTY_LOC,
- .clk_phase = SSP_CLK_SECOND_EDGE,
- .clk_pol = SSP_CLK_POL_IDLE_HIGH,
.cs_control = ab4500_spi_cs_control,
};
@@ -83,7 +77,7 @@ static struct spi_board_info u8500_spi_devices[] = {
.max_speed_hz = 12000000,
.bus_num = 0,
.chip_select = 0,
- .mode = SPI_MODE_0,
+ .mode = SPI_MODE_3,
.irq = IRQ_DB8500_AB8500,
},
};
diff --git a/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h b/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
index e5aba8f95b79..b226f7405e6b 100644
--- a/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
+++ b/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
@@ -32,6 +32,8 @@ struct s3c64xx_spi_csinfo {
* struct s3c64xx_spi_info - SPI Controller defining structure
* @src_clk_nr: Clock source index for the CLK_CFG[SPI_CLKSEL] field.
* @src_clk_name: Platform name of the corresponding clock.
+ * @clk_from_cmu: If the SPI clock/prescalar control block is present
+ * by the platform's clock-management-unit and not in SPI controller.
* @num_cs: Number of CS this controller emulates.
* @cfg_gpio: Configure pins for this SPI controller.
* @fifo_lvl_mask: All tx fifo_lvl fields start at offset-6
@@ -41,6 +43,7 @@ struct s3c64xx_spi_csinfo {
struct s3c64xx_spi_info {
int src_clk_nr;
char *src_clk_name;
+ bool clk_from_cmu;
int num_cs;