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-rw-r--r--arch/arm/mach-mx2/Kconfig8
-rw-r--r--arch/arm/mach-mx2/Makefile2
-rw-r--r--arch/arm/mach-mx2/clock_imx21.c77
-rw-r--r--arch/arm/mach-mx2/mx27lite.c95
-rw-r--r--arch/arm/mach-mx2/mx27pdk.c2
5 files changed, 157 insertions, 27 deletions
diff --git a/arch/arm/mach-mx2/Kconfig b/arch/arm/mach-mx2/Kconfig
index 61550443a23..c77da586b71 100644
--- a/arch/arm/mach-mx2/Kconfig
+++ b/arch/arm/mach-mx2/Kconfig
@@ -59,4 +59,12 @@ config MACH_MX27_3DS
help
Include support for MX27PDK platform. This includes specific
configurations for the board and its peripherals.
+
+config MACH_MX27LITE
+ bool "LogicPD MX27 LITEKIT platform"
+ depends on MACH_MX27
+ help
+ Include support for MX27 LITEKIT platform. This includes specific
+ configurations for the board and its peripherals.
+
endif
diff --git a/arch/arm/mach-mx2/Makefile b/arch/arm/mach-mx2/Makefile
index d140e2dcf94..b9b1cca4e9b 100644
--- a/arch/arm/mach-mx2/Makefile
+++ b/arch/arm/mach-mx2/Makefile
@@ -16,3 +16,5 @@ obj-$(CONFIG_MACH_MX27ADS) += mx27ads.o
obj-$(CONFIG_MACH_PCM038) += pcm038.o
obj-$(CONFIG_MACH_PCM970_BASEBOARD) += pcm970-baseboard.o
obj-$(CONFIG_MACH_MX27_3DS) += mx27pdk.o
+obj-$(CONFIG_MACH_MX27LITE) += mx27lite.o
+
diff --git a/arch/arm/mach-mx2/clock_imx21.c b/arch/arm/mach-mx2/clock_imx21.c
index 999d013e06e..fa2b292d7b3 100644
--- a/arch/arm/mach-mx2/clock_imx21.c
+++ b/arch/arm/mach-mx2/clock_imx21.c
@@ -48,6 +48,25 @@ static void _clk_disable(struct clk *clk)
__raw_writel(reg, clk->enable_reg);
}
+static unsigned long _clk_generic_round_rate(struct clk *clk,
+ unsigned long rate,
+ u32 max_divisor)
+{
+ u32 div;
+ unsigned long parent_rate;
+
+ parent_rate = clk_get_rate(clk->parent);
+
+ div = parent_rate / rate;
+ if (parent_rate % rate)
+ div++;
+
+ if (div > max_divisor)
+ div = max_divisor;
+
+ return parent_rate / div;
+}
+
static int _clk_spll_enable(struct clk *clk)
{
u32 reg;
@@ -78,19 +97,7 @@ static void _clk_spll_disable(struct clk *clk)
static unsigned long _clk_perclkx_round_rate(struct clk *clk,
unsigned long rate)
{
- u32 div;
- unsigned long parent_rate;
-
- parent_rate = clk_get_rate(clk->parent);
-
- div = parent_rate / rate;
- if (parent_rate % rate)
- div++;
-
- if (div > 64)
- div = 64;
-
- return parent_rate / div;
+ return _clk_generic_round_rate(clk, rate, 64);
}
static int _clk_perclkx_set_rate(struct clk *clk, unsigned long rate)
@@ -130,6 +137,32 @@ static unsigned long _clk_usb_recalc(struct clk *clk)
return parent_rate / (usb_pdf + 1U);
}
+static unsigned long _clk_usb_round_rate(struct clk *clk,
+ unsigned long rate)
+{
+ return _clk_generic_round_rate(clk, rate, 8);
+}
+
+static int _clk_usb_set_rate(struct clk *clk, unsigned long rate)
+{
+ u32 reg;
+ u32 div;
+ unsigned long parent_rate;
+
+ parent_rate = clk_get_rate(clk->parent);
+
+ div = parent_rate / rate;
+ if (div > 8 || div < 1 || ((parent_rate / div) != rate))
+ return -EINVAL;
+ div--;
+
+ reg = CSCR() & ~CCM_CSCR_USB_MASK;
+ reg |= div << CCM_CSCR_USB_OFFSET;
+ __raw_writel(reg, CCM_CSCR);
+
+ return 0;
+}
+
static unsigned long _clk_ssix_recalc(struct clk *clk, unsigned long pdf)
{
unsigned long parent_rate;
@@ -595,11 +628,14 @@ static struct clk csi_clk[] = {
static struct clk usb_clk[] = {
{
.parent = &spll_clk,
+ .secondary = &usb_clk[1],
.get_rate = _clk_usb_recalc,
.enable = _clk_enable,
.enable_reg = CCM_PCCR_USBOTG_REG,
.enable_shift = CCM_PCCR_USBOTG_OFFSET,
.disable = _clk_disable,
+ .round_rate = _clk_usb_round_rate,
+ .set_rate = _clk_usb_set_rate,
}, {
.parent = &hclk_clk,
.enable = _clk_enable,
@@ -768,18 +804,7 @@ static struct clk rtc_clk = {
static unsigned long _clk_clko_round_rate(struct clk *clk, unsigned long rate)
{
- u32 div;
- unsigned long parent_rate;
-
- parent_rate = clk_get_rate(clk->parent);
- div = parent_rate / rate;
- if (parent_rate % rate)
- div++;
-
- if (div > 8)
- div = 8;
-
- return parent_rate / div;
+ return _clk_generic_round_rate(clk, rate, 8);
}
static int _clk_clko_set_rate(struct clk *clk, unsigned long rate)
@@ -921,7 +946,7 @@ static struct clk_lookup lookups[] __initdata = {
_REGISTER_CLOCK(NULL, "cspi3", cspi_clk[2])
_REGISTER_CLOCK("imx-fb.0", NULL, lcdc_clk[0])
_REGISTER_CLOCK(NULL, "csi", csi_clk[0])
- _REGISTER_CLOCK(NULL, "usb", usb_clk[0])
+ _REGISTER_CLOCK("imx21-hcd.0", NULL, usb_clk[0])
_REGISTER_CLOCK(NULL, "ssi1", ssi_clk[0])
_REGISTER_CLOCK(NULL, "ssi2", ssi_clk[1])
_REGISTER_CLOCK("mxc_nand.0", NULL, nfc_clk)
diff --git a/arch/arm/mach-mx2/mx27lite.c b/arch/arm/mach-mx2/mx27lite.c
new file mode 100644
index 00000000000..3ae11cb8c04
--- /dev/null
+++ b/arch/arm/mach-mx2/mx27lite.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
+ * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
+ * Copyright 2009 Daniel Schaeffer (daniel.schaeffer@timesys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/mach/map.h>
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/imx-uart.h>
+#include <mach/iomux.h>
+#include <mach/board-mx27lite.h>
+
+#include "devices.h"
+
+static unsigned int mx27lite_pins[] = {
+ /* UART1 */
+ PE12_PF_UART1_TXD,
+ PE13_PF_UART1_RXD,
+ PE14_PF_UART1_CTS,
+ PE15_PF_UART1_RTS,
+ /* FEC */
+ PD0_AIN_FEC_TXD0,
+ PD1_AIN_FEC_TXD1,
+ PD2_AIN_FEC_TXD2,
+ PD3_AIN_FEC_TXD3,
+ PD4_AOUT_FEC_RX_ER,
+ PD5_AOUT_FEC_RXD1,
+ PD6_AOUT_FEC_RXD2,
+ PD7_AOUT_FEC_RXD3,
+ PD8_AF_FEC_MDIO,
+ PD9_AIN_FEC_MDC,
+ PD10_AOUT_FEC_CRS,
+ PD11_AOUT_FEC_TX_CLK,
+ PD12_AOUT_FEC_RXD0,
+ PD13_AOUT_FEC_RX_DV,
+ PD14_AOUT_FEC_RX_CLK,
+ PD15_AOUT_FEC_COL,
+ PD16_AIN_FEC_TX_ER,
+ PF23_AIN_FEC_TX_EN,
+};
+
+static struct imxuart_platform_data uart_pdata = {
+ .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct platform_device *platform_devices[] __initdata = {
+ &mxc_fec_device,
+};
+
+static void __init mx27lite_init(void)
+{
+ mxc_gpio_setup_multiple_pins(mx27lite_pins, ARRAY_SIZE(mx27lite_pins),
+ "imx27lite");
+ mxc_register_device(&mxc_uart_device0, &uart_pdata);
+ platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+}
+
+static void __init mx27lite_timer_init(void)
+{
+ mx27_clocks_init(26000000);
+}
+
+static struct sys_timer mx27lite_timer = {
+ .init = mx27lite_timer_init,
+};
+
+MACHINE_START(IMX27LITE, "LogicPD i.MX27LITE")
+ .phys_io = AIPI_BASE_ADDR,
+ .io_pg_offst = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+ .boot_params = PHYS_OFFSET + 0x100,
+ .map_io = mx27_map_io,
+ .init_irq = mxc_init_irq,
+ .init_machine = mx27lite_init,
+ .timer = &mx27lite_timer,
+MACHINE_END
diff --git a/arch/arm/mach-mx2/mx27pdk.c b/arch/arm/mach-mx2/mx27pdk.c
index 90b1fa5d184..1d9238c7a6c 100644
--- a/arch/arm/mach-mx2/mx27pdk.c
+++ b/arch/arm/mach-mx2/mx27pdk.c
@@ -88,7 +88,7 @@ MACHINE_START(MX27_3DS, "Freescale MX27PDK")
.phys_io = AIPI_BASE_ADDR,
.io_pg_offst = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
.boot_params = PHYS_OFFSET + 0x100,
- .map_io = mxc_map_io,
+ .map_io = mx27_map_io,
.init_irq = mxc_init_irq,
.init_machine = mx27pdk_init,
.timer = &mx27pdk_timer,
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 16:36:03 +0000