Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel

1 files changed, 111 insertions, 0 deletions

diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c
new file mode 100644
index 00000000000..ae924468658
--- /dev/null
+++ b/arch/arm/mach-mmp/pxa168.c
@@ -0,0 +1,111 @@
+/*
+ *  linux/arch/arm/mach-mmp/pxa168.c
+ *
+ *  Code specific to PXA168
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+
+#include <asm/mach/time.h>
+#include <mach/addr-map.h>
+#include <mach/cputype.h>
+#include <mach/regs-apbc.h>
+#include <mach/irqs.h>
+#include <mach/gpio.h>
+#include <mach/dma.h>
+#include <mach/devices.h>
+#include <mach/mfp.h>
+
+#include "common.h"
+#include "clock.h"
+
+#define MFPR_VIRT_BASE	(APB_VIRT_BASE + 0x1e000)
+
+static struct mfp_addr_map pxa168_mfp_addr_map[] __initdata =
+{
+	MFP_ADDR_X(GPIO0,   GPIO36,  0x04c),
+	MFP_ADDR_X(GPIO37,  GPIO55,  0x000),
+	MFP_ADDR_X(GPIO56,  GPIO123, 0x0e0),
+	MFP_ADDR_X(GPIO124, GPIO127, 0x0f4),
+
+	MFP_ADDR_END,
+};
+
+#define APMASK(i)	(GPIO_REGS_VIRT + BANK_OFF(i) + 0x09c)
+
+static void __init pxa168_init_gpio(void)
+{
+	int i;
+
+	/* enable GPIO clock */
+	__raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_PXA168_GPIO);
+
+	/* unmask GPIO edge detection for all 4 banks - APMASKx */
+	for (i = 0; i < 4; i++)
+		__raw_writel(0xffffffff, APMASK(i));
+
+	pxa_init_gpio(IRQ_PXA168_GPIOX, 0, 127, NULL);
+}
+
+void __init pxa168_init_irq(void)
+{
+	icu_init_irq();
+	pxa168_init_gpio();
+}
+
+/* APB peripheral clocks */
+static APBC_CLK(uart1, PXA168_UART1, 1, 14745600);
+static APBC_CLK(uart2, PXA168_UART2, 1, 14745600);
+
+/* device and clock bindings */
+static struct clk_lookup pxa168_clkregs[] = {
+	INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
+	INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
+};
+
+static int __init pxa168_init(void)
+{
+	if (cpu_is_pxa168()) {
+		mfp_init_base(MFPR_VIRT_BASE);
+		mfp_init_addr(pxa168_mfp_addr_map);
+		pxa_init_dma(IRQ_PXA168_DMA_INT0, 32);
+		clks_register(ARRAY_AND_SIZE(pxa168_clkregs));
+	}
+
+	return 0;
+}
+postcore_initcall(pxa168_init);
+
+/* system timer - clock enabled, 3.25MHz */
+#define TIMER_CLK_RST	(APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
+
+static void __init pxa168_timer_init(void)
+{
+	/* this is early, we have to initialize the CCU registers by
+	 * ourselves instead of using clk_* API. Clock rate is defined
+	 * by APBC_TIMERS_CLK_RST (3.25MHz) and enabled free-running
+	 */
+	__raw_writel(APBC_APBCLK | APBC_RST, APBC_PXA168_TIMERS);
+
+	/* 3.25MHz, bus/functional clock enabled, release reset */
+	__raw_writel(TIMER_CLK_RST, APBC_PXA168_TIMERS);
+
+	timer_init(IRQ_PXA168_TIMER1);
+}
+
+struct sys_timer pxa168_timer = {
+	.init	= pxa168_timer_init,
+};
+
+/* on-chip devices */
+PXA168_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4017000, 0x30, 21, 22);
+PXA168_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4018000, 0x30, 23, 24);