summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-lpc32xx
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-lpc32xx')
-rw-r--r--arch/arm/mach-lpc32xx/Kconfig32
-rw-r--r--arch/arm/mach-lpc32xx/Makefile.boot1
-rw-r--r--arch/arm/mach-lpc32xx/clock.c21
-rw-r--r--arch/arm/mach-lpc32xx/include/mach/gpio.h2
-rw-r--r--arch/arm/mach-lpc32xx/phy3250.c158
-rw-r--r--arch/arm/mach-lpc32xx/serial.c90
6 files changed, 89 insertions, 215 deletions
diff --git a/arch/arm/mach-lpc32xx/Kconfig b/arch/arm/mach-lpc32xx/Kconfig
deleted file mode 100644
index e0b3eee8383..00000000000
--- a/arch/arm/mach-lpc32xx/Kconfig
+++ /dev/null
@@ -1,32 +0,0 @@
-if ARCH_LPC32XX
-
-menu "Individual UART enable selections"
-
-config ARCH_LPC32XX_UART3_SELECT
- bool "Add support for standard UART3"
- help
- Adds support for standard UART 3 when the 8250 serial support
- is enabled.
-
-config ARCH_LPC32XX_UART4_SELECT
- bool "Add support for standard UART4"
- help
- Adds support for standard UART 4 when the 8250 serial support
- is enabled.
-
-config ARCH_LPC32XX_UART5_SELECT
- bool "Add support for standard UART5"
- default y
- help
- Adds support for standard UART 5 when the 8250 serial support
- is enabled.
-
-config ARCH_LPC32XX_UART6_SELECT
- bool "Add support for standard UART6"
- help
- Adds support for standard UART 6 when the 8250 serial support
- is enabled.
-
-endmenu
-
-endif
diff --git a/arch/arm/mach-lpc32xx/Makefile.boot b/arch/arm/mach-lpc32xx/Makefile.boot
index 2cfe0ee635c..697323b5f92 100644
--- a/arch/arm/mach-lpc32xx/Makefile.boot
+++ b/arch/arm/mach-lpc32xx/Makefile.boot
@@ -2,3 +2,4 @@
params_phys-y := 0x80000100
initrd_phys-y := 0x82000000
+dtb-$(CONFIG_ARCH_LPC32XX) += ea3250.dtb phy3250.dtb
diff --git a/arch/arm/mach-lpc32xx/clock.c b/arch/arm/mach-lpc32xx/clock.c
index f6a3ffec1f4..e8d315e6db0 100644
--- a/arch/arm/mach-lpc32xx/clock.c
+++ b/arch/arm/mach-lpc32xx/clock.c
@@ -691,10 +691,21 @@ static struct clk clk_nand = {
.parent = &clk_hclk,
.enable = local_onoff_enable,
.enable_reg = LPC32XX_CLKPWR_NAND_CLK_CTRL,
- .enable_mask = LPC32XX_CLKPWR_NANDCLK_SLCCLK_EN,
+ .enable_mask = LPC32XX_CLKPWR_NANDCLK_SLCCLK_EN |
+ LPC32XX_CLKPWR_NANDCLK_SEL_SLC,
.get_rate = local_return_parent_rate,
};
+static struct clk clk_nand_mlc = {
+ .parent = &clk_hclk,
+ .enable = local_onoff_enable,
+ .enable_reg = LPC32XX_CLKPWR_NAND_CLK_CTRL,
+ .enable_mask = LPC32XX_CLKPWR_NANDCLK_MLCCLK_EN |
+ LPC32XX_CLKPWR_NANDCLK_DMA_INT |
+ LPC32XX_CLKPWR_NANDCLK_INTSEL_MLC,
+ .get_rate = local_return_parent_rate,
+};
+
static struct clk clk_i2s0 = {
.parent = &clk_hclk,
.enable = local_onoff_enable,
@@ -707,7 +718,8 @@ static struct clk clk_i2s1 = {
.parent = &clk_hclk,
.enable = local_onoff_enable,
.enable_reg = LPC32XX_CLKPWR_I2S_CLK_CTRL,
- .enable_mask = LPC32XX_CLKPWR_I2SCTRL_I2SCLK1_EN,
+ .enable_mask = LPC32XX_CLKPWR_I2SCTRL_I2SCLK1_EN |
+ LPC32XX_CLKPWR_I2SCTRL_I2S1_USE_DMA,
.get_rate = local_return_parent_rate,
};
@@ -1120,8 +1132,9 @@ static struct clk_lookup lookups[] = {
CLKDEV_INIT("31020300.i2c", NULL, &clk_i2c2),
CLKDEV_INIT("dev:ssp0", NULL, &clk_ssp0),
CLKDEV_INIT("dev:ssp1", NULL, &clk_ssp1),
- CLKDEV_INIT("lpc32xx_keys.0", NULL, &clk_kscan),
- CLKDEV_INIT("lpc32xx-nand.0", "nand_ck", &clk_nand),
+ CLKDEV_INIT("40050000.key", NULL, &clk_kscan),
+ CLKDEV_INIT("20020000.flash", NULL, &clk_nand),
+ CLKDEV_INIT("200a8000.flash", NULL, &clk_nand_mlc),
CLKDEV_INIT("40048000.adc", NULL, &clk_adc),
CLKDEV_INIT(NULL, "i2s0_ck", &clk_i2s0),
CLKDEV_INIT(NULL, "i2s1_ck", &clk_i2s1),
diff --git a/arch/arm/mach-lpc32xx/include/mach/gpio.h b/arch/arm/mach-lpc32xx/include/mach/gpio.h
index 2ba6ca412be..0052e7a7617 100644
--- a/arch/arm/mach-lpc32xx/include/mach/gpio.h
+++ b/arch/arm/mach-lpc32xx/include/mach/gpio.h
@@ -3,6 +3,4 @@
#include "gpio-lpc32xx.h"
-#define ARCH_NR_GPIOS (LPC32XX_GPO_P3_GRP + LPC32XX_GPO_P3_MAX)
-
#endif /* __MACH_GPIO_H */
diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
index 540106cdb9e..c1aabfcbde4 100644
--- a/arch/arm/mach-lpc32xx/phy3250.c
+++ b/arch/arm/mach-lpc32xx/phy3250.c
@@ -30,12 +30,13 @@
#include <linux/amba/bus.h>
#include <linux/amba/clcd.h>
#include <linux/amba/pl022.h>
+#include <linux/amba/pl08x.h>
+#include <linux/amba/mmci.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/clk.h>
-#include <linux/amba/pl08x.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
@@ -50,9 +51,12 @@
/*
* Mapped GPIOLIB GPIOs
*/
-#define SPI0_CS_GPIO LPC32XX_GPIO(LPC32XX_GPIO_P3_GRP, 5)
-#define LCD_POWER_GPIO LPC32XX_GPIO(LPC32XX_GPO_P3_GRP, 0)
-#define BKL_POWER_GPIO LPC32XX_GPIO(LPC32XX_GPO_P3_GRP, 4)
+#define SPI0_CS_GPIO LPC32XX_GPIO(LPC32XX_GPIO_P3_GRP, 5)
+#define LCD_POWER_GPIO LPC32XX_GPIO(LPC32XX_GPO_P3_GRP, 0)
+#define BKL_POWER_GPIO LPC32XX_GPIO(LPC32XX_GPO_P3_GRP, 4)
+#define MMC_PWR_ENABLE_GPIO LPC32XX_GPIO(LPC32XX_GPO_P3_GRP, 5)
+#define MMC_CD_GPIO LPC32XX_GPIO(LPC32XX_GPIO_P3_GRP, 1)
+#define MMC_WP_GPIO LPC32XX_GPIO(LPC32XX_GPIO_P3_GRP, 0)
/*
* AMBA LCD controller
@@ -158,24 +162,6 @@ static struct clcd_board lpc32xx_clcd_data = {
/*
* AMBA SSP (SPI)
*/
-static void phy3250_spi_cs_set(u32 control)
-{
- gpio_set_value(SPI0_CS_GPIO, (int) control);
-}
-
-static struct pl022_config_chip spi0_chip_info = {
- .com_mode = INTERRUPT_TRANSFER,
- .iface = SSP_INTERFACE_MOTOROLA_SPI,
- .hierarchy = SSP_MASTER,
- .slave_tx_disable = 0,
- .rx_lev_trig = SSP_RX_4_OR_MORE_ELEM,
- .tx_lev_trig = SSP_TX_4_OR_MORE_EMPTY_LOC,
- .ctrl_len = SSP_BITS_8,
- .wait_state = SSP_MWIRE_WAIT_ZERO,
- .duplex = SSP_MICROWIRE_CHANNEL_FULL_DUPLEX,
- .cs_control = phy3250_spi_cs_set,
-};
-
static struct pl022_ssp_controller lpc32xx_ssp0_data = {
.bus_id = 0,
.num_chipselect = 1,
@@ -188,45 +174,57 @@ static struct pl022_ssp_controller lpc32xx_ssp1_data = {
.enable_dma = 0,
};
-/* AT25 driver registration */
-static int __init phy3250_spi_board_register(void)
+static struct pl08x_channel_data pl08x_slave_channels[] = {
+ {
+ .bus_id = "nand-slc",
+ .min_signal = 1, /* SLC NAND Flash */
+ .max_signal = 1,
+ .periph_buses = PL08X_AHB1,
+ },
+ {
+ .bus_id = "nand-mlc",
+ .min_signal = 12, /* MLC NAND Flash */
+ .max_signal = 12,
+ .periph_buses = PL08X_AHB1,
+ },
+};
+
+/* NOTE: These will change, according to RMK */
+static int pl08x_get_signal(struct pl08x_dma_chan *ch)
+{
+ return ch->cd->min_signal;
+}
+
+static void pl08x_put_signal(struct pl08x_dma_chan *ch)
{
-#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
- static struct spi_board_info info[] = {
- {
- .modalias = "spidev",
- .max_speed_hz = 5000000,
- .bus_num = 0,
- .chip_select = 0,
- .controller_data = &spi0_chip_info,
- },
- };
-
-#else
- static struct spi_eeprom eeprom = {
- .name = "at25256a",
- .byte_len = 0x8000,
- .page_size = 64,
- .flags = EE_ADDR2,
- };
-
- static struct spi_board_info info[] = {
- {
- .modalias = "at25",
- .max_speed_hz = 5000000,
- .bus_num = 0,
- .chip_select = 0,
- .mode = SPI_MODE_0,
- .platform_data = &eeprom,
- .controller_data = &spi0_chip_info,
- },
- };
-#endif
- return spi_register_board_info(info, ARRAY_SIZE(info));
}
-arch_initcall(phy3250_spi_board_register);
static struct pl08x_platform_data pl08x_pd = {
+ .slave_channels = &pl08x_slave_channels[0],
+ .num_slave_channels = ARRAY_SIZE(pl08x_slave_channels),
+ .get_signal = pl08x_get_signal,
+ .put_signal = pl08x_put_signal,
+ .lli_buses = PL08X_AHB1,
+ .mem_buses = PL08X_AHB1,
+};
+
+static int mmc_handle_ios(struct device *dev, struct mmc_ios *ios)
+{
+ /* Only on and off are supported */
+ if (ios->power_mode == MMC_POWER_OFF)
+ gpio_set_value(MMC_PWR_ENABLE_GPIO, 0);
+ else
+ gpio_set_value(MMC_PWR_ENABLE_GPIO, 1);
+ return 0;
+}
+
+static struct mmci_platform_data lpc32xx_mmci_data = {
+ .ocr_mask = MMC_VDD_30_31 | MMC_VDD_31_32 |
+ MMC_VDD_32_33 | MMC_VDD_33_34,
+ .ios_handler = mmc_handle_ios,
+ .dma_filter = NULL,
+ /* No DMA for now since AMBA PL080 dmaengine driver only does scatter
+ * gather, and the MMCI driver doesn't do it this way */
};
static const struct of_dev_auxdata lpc32xx_auxdata_lookup[] __initconst = {
@@ -234,6 +232,8 @@ static const struct of_dev_auxdata lpc32xx_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("arm,pl022", 0x2008C000, "dev:ssp1", &lpc32xx_ssp1_data),
OF_DEV_AUXDATA("arm,pl110", 0x31040000, "dev:clcd", &lpc32xx_clcd_data),
OF_DEV_AUXDATA("arm,pl080", 0x31000000, "pl08xdmac", &pl08x_pd),
+ OF_DEV_AUXDATA("arm,pl18x", 0x20098000, "20098000.sd",
+ &lpc32xx_mmci_data),
{ }
};
@@ -241,10 +241,6 @@ static void __init lpc3250_machine_init(void)
{
u32 tmp;
- /* Setup SLC NAND controller muxing */
- __raw_writel(LPC32XX_CLKPWR_NANDCLK_SEL_SLC,
- LPC32XX_CLKPWR_NAND_CLK_CTRL);
-
/* Setup LCD muxing to RGB565 */
tmp = __raw_readl(LPC32XX_CLKPWR_LCDCLK_CTRL) &
~(LPC32XX_CLKPWR_LCDCTRL_LCDTYPE_MSK |
@@ -264,34 +260,12 @@ static void __init lpc3250_machine_init(void)
LPC32XX_CLKPWR_I2CCLK_I2C2HI_DRIVE;
__raw_writel(tmp, LPC32XX_CLKPWR_I2C_CLK_CTRL);
- /* Disable IrDA pulsing support on UART6 */
- tmp = __raw_readl(LPC32XX_UARTCTL_CTRL);
- tmp |= LPC32XX_UART_UART6_IRDAMOD_BYPASS;
- __raw_writel(tmp, LPC32XX_UARTCTL_CTRL);
-
- /* Enable DMA for I2S1 channel */
- tmp = __raw_readl(LPC32XX_CLKPWR_I2S_CLK_CTRL);
- tmp = LPC32XX_CLKPWR_I2SCTRL_I2S1_USE_DMA;
- __raw_writel(tmp, LPC32XX_CLKPWR_I2S_CLK_CTRL);
-
lpc32xx_serial_init();
- /*
- * AMBA peripheral clocks need to be enabled prior to AMBA device
- * detection or a data fault will occur, so enable the clocks
- * here.
- */
- tmp = __raw_readl(LPC32XX_CLKPWR_LCDCLK_CTRL);
- __raw_writel((tmp | LPC32XX_CLKPWR_LCDCTRL_CLK_EN),
- LPC32XX_CLKPWR_LCDCLK_CTRL);
-
- tmp = __raw_readl(LPC32XX_CLKPWR_SSP_CLK_CTRL);
- __raw_writel((tmp | LPC32XX_CLKPWR_SSPCTRL_SSPCLK0_EN),
- LPC32XX_CLKPWR_SSP_CLK_CTRL);
-
- tmp = __raw_readl(LPC32XX_CLKPWR_DMA_CLK_CTRL);
- __raw_writel((tmp | LPC32XX_CLKPWR_DMACLKCTRL_CLK_EN),
- LPC32XX_CLKPWR_DMA_CLK_CTRL);
+ tmp = __raw_readl(LPC32XX_CLKPWR_MS_CTRL);
+ tmp |= LPC32XX_CLKPWR_MSCARD_SDCARD_EN |
+ LPC32XX_CLKPWR_MSCARD_MSDIO_PU_EN;
+ __raw_writel(tmp, LPC32XX_CLKPWR_MS_CTRL);
/* Test clock needed for UDA1380 initial init */
__raw_writel(LPC32XX_CLKPWR_TESTCLK2_SEL_MOSC |
@@ -302,12 +276,10 @@ static void __init lpc3250_machine_init(void)
lpc32xx_auxdata_lookup, NULL);
/* Register GPIOs used on this board */
- if (gpio_request(SPI0_CS_GPIO, "spi0 cs"))
- printk(KERN_ERR "Error requesting gpio %u",
- SPI0_CS_GPIO);
- else if (gpio_direction_output(SPI0_CS_GPIO, 1))
- printk(KERN_ERR "Error setting gpio %u to output",
- SPI0_CS_GPIO);
+ if (gpio_request(MMC_PWR_ENABLE_GPIO, "mmc_power_en"))
+ pr_err("Error requesting gpio %u", MMC_PWR_ENABLE_GPIO);
+ else if (gpio_direction_output(MMC_PWR_ENABLE_GPIO, 1))
+ pr_err("Error setting gpio %u to output", MMC_PWR_ENABLE_GPIO);
}
static char const *lpc32xx_dt_compat[] __initdata = {
diff --git a/arch/arm/mach-lpc32xx/serial.c b/arch/arm/mach-lpc32xx/serial.c
index f2735281616..05621a29fba 100644
--- a/arch/arm/mach-lpc32xx/serial.c
+++ b/arch/arm/mach-lpc32xx/serial.c
@@ -31,59 +31,6 @@
#define LPC32XX_SUART_FIFO_SIZE 64
-/* Standard 8250/16550 compatible serial ports */
-static struct plat_serial8250_port serial_std_platform_data[] = {
-#ifdef CONFIG_ARCH_LPC32XX_UART5_SELECT
- {
- .membase = io_p2v(LPC32XX_UART5_BASE),
- .mapbase = LPC32XX_UART5_BASE,
- .irq = IRQ_LPC32XX_UART_IIR5,
- .uartclk = LPC32XX_MAIN_OSC_FREQ,
- .regshift = 2,
- .iotype = UPIO_MEM32,
- .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART |
- UPF_SKIP_TEST,
- },
-#endif
-#ifdef CONFIG_ARCH_LPC32XX_UART3_SELECT
- {
- .membase = io_p2v(LPC32XX_UART3_BASE),
- .mapbase = LPC32XX_UART3_BASE,
- .irq = IRQ_LPC32XX_UART_IIR3,
- .uartclk = LPC32XX_MAIN_OSC_FREQ,
- .regshift = 2,
- .iotype = UPIO_MEM32,
- .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART |
- UPF_SKIP_TEST,
- },
-#endif
-#ifdef CONFIG_ARCH_LPC32XX_UART4_SELECT
- {
- .membase = io_p2v(LPC32XX_UART4_BASE),
- .mapbase = LPC32XX_UART4_BASE,
- .irq = IRQ_LPC32XX_UART_IIR4,
- .uartclk = LPC32XX_MAIN_OSC_FREQ,
- .regshift = 2,
- .iotype = UPIO_MEM32,
- .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART |
- UPF_SKIP_TEST,
- },
-#endif
-#ifdef CONFIG_ARCH_LPC32XX_UART6_SELECT
- {
- .membase = io_p2v(LPC32XX_UART6_BASE),
- .mapbase = LPC32XX_UART6_BASE,
- .irq = IRQ_LPC32XX_UART_IIR6,
- .uartclk = LPC32XX_MAIN_OSC_FREQ,
- .regshift = 2,
- .iotype = UPIO_MEM32,
- .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART |
- UPF_SKIP_TEST,
- },
-#endif
- { },
-};
-
struct uartinit {
char *uart_ck_name;
u32 ck_mode_mask;
@@ -92,7 +39,6 @@ struct uartinit {
};
static struct uartinit uartinit_data[] __initdata = {
-#ifdef CONFIG_ARCH_LPC32XX_UART5_SELECT
{
.uart_ck_name = "uart5_ck",
.ck_mode_mask =
@@ -100,8 +46,6 @@ static struct uartinit uartinit_data[] __initdata = {
.pdiv_clk_reg = LPC32XX_CLKPWR_UART5_CLK_CTRL,
.mapbase = LPC32XX_UART5_BASE,
},
-#endif
-#ifdef CONFIG_ARCH_LPC32XX_UART3_SELECT
{
.uart_ck_name = "uart3_ck",
.ck_mode_mask =
@@ -109,8 +53,6 @@ static struct uartinit uartinit_data[] __initdata = {
.pdiv_clk_reg = LPC32XX_CLKPWR_UART3_CLK_CTRL,
.mapbase = LPC32XX_UART3_BASE,
},
-#endif
-#ifdef CONFIG_ARCH_LPC32XX_UART4_SELECT
{
.uart_ck_name = "uart4_ck",
.ck_mode_mask =
@@ -118,8 +60,6 @@ static struct uartinit uartinit_data[] __initdata = {
.pdiv_clk_reg = LPC32XX_CLKPWR_UART4_CLK_CTRL,
.mapbase = LPC32XX_UART4_BASE,
},
-#endif
-#ifdef CONFIG_ARCH_LPC32XX_UART6_SELECT
{
.uart_ck_name = "uart6_ck",
.ck_mode_mask =
@@ -127,19 +67,6 @@ static struct uartinit uartinit_data[] __initdata = {
.pdiv_clk_reg = LPC32XX_CLKPWR_UART6_CLK_CTRL,
.mapbase = LPC32XX_UART6_BASE,
},
-#endif
-};
-
-static struct platform_device serial_std_platform_device = {
- .name = "serial8250",
- .id = 0,
- .dev = {
- .platform_data = serial_std_platform_data,
- },
-};
-
-static struct platform_device *lpc32xx_serial_devs[] __initdata = {
- &serial_std_platform_device,
};
void __init lpc32xx_serial_init(void)
@@ -156,15 +83,8 @@ void __init lpc32xx_serial_init(void)
clk = clk_get(NULL, uartinit_data[i].uart_ck_name);
if (!IS_ERR(clk)) {
clk_enable(clk);
- serial_std_platform_data[i].uartclk =
- clk_get_rate(clk);
}
- /* Fall back on main osc rate if clock rate return fails */
- if (serial_std_platform_data[i].uartclk == 0)
- serial_std_platform_data[i].uartclk =
- LPC32XX_MAIN_OSC_FREQ;
-
/* Setup UART clock modes for all UARTs, disable autoclock */
clkmodes |= uartinit_data[i].ck_mode_mask;
@@ -189,7 +109,7 @@ void __init lpc32xx_serial_init(void)
__raw_writel(clkmodes, LPC32XX_UARTCTL_CLKMODE);
for (i = 0; i < ARRAY_SIZE(uartinit_data); i++) {
/* Force a flush of the RX FIFOs to work around a HW bug */
- puart = serial_std_platform_data[i].mapbase;
+ puart = uartinit_data[i].mapbase;
__raw_writel(0xC1, LPC32XX_UART_IIR_FCR(puart));
__raw_writel(0x00, LPC32XX_UART_DLL_FIFO(puart));
j = LPC32XX_SUART_FIFO_SIZE;
@@ -198,11 +118,13 @@ void __init lpc32xx_serial_init(void)
__raw_writel(0, LPC32XX_UART_IIR_FCR(puart));
}
+ /* Disable IrDA pulsing support on UART6 */
+ tmp = __raw_readl(LPC32XX_UARTCTL_CTRL);
+ tmp |= LPC32XX_UART_UART6_IRDAMOD_BYPASS;
+ __raw_writel(tmp, LPC32XX_UARTCTL_CTRL);
+
/* Disable UART5->USB transparent mode or USB won't work */
tmp = __raw_readl(LPC32XX_UARTCTL_CTRL);
tmp &= ~LPC32XX_UART_U5_ROUTE_TO_USB;
__raw_writel(tmp, LPC32XX_UARTCTL_CTRL);
-
- platform_add_devices(lpc32xx_serial_devs,
- ARRAY_SIZE(lpc32xx_serial_devs));
}