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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/mach-mmp/pxa910.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/arm/mach-mmp/pxa910.c')
-rw-r--r--kernel/arch/arm/mach-mmp/pxa910.c191
1 files changed, 191 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-mmp/pxa910.c b/kernel/arch/arm/mach-mmp/pxa910.c
new file mode 100644
index 000000000..eb57ee196
--- /dev/null
+++ b/kernel/arch/arm/mach-mmp/pxa910.c
@@ -0,0 +1,191 @@
+/*
+ * linux/arch/arm/mach-mmp/pxa910.c
+ *
+ * Code specific to PXA910
+ *
+ * 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/irq.h>
+#include <linux/irqchip/mmp.h>
+#include <linux/platform_device.h>
+
+#include <asm/hardware/cache-tauros2.h>
+#include <asm/mach/time.h>
+#include <mach/addr-map.h>
+#include <mach/regs-apbc.h>
+#include <mach/cputype.h>
+#include <mach/irqs.h>
+#include <mach/dma.h>
+#include <mach/mfp.h>
+#include <mach/devices.h>
+#include <mach/pm-pxa910.h>
+#include <mach/pxa910.h>
+
+#include "common.h"
+
+#define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000)
+
+static struct mfp_addr_map pxa910_mfp_addr_map[] __initdata =
+{
+ MFP_ADDR_X(GPIO0, GPIO54, 0xdc),
+ MFP_ADDR_X(GPIO67, GPIO98, 0x1b8),
+ MFP_ADDR_X(GPIO100, GPIO109, 0x238),
+
+ MFP_ADDR(GPIO123, 0xcc),
+ MFP_ADDR(GPIO124, 0xd0),
+
+ MFP_ADDR(DF_IO0, 0x40),
+ MFP_ADDR(DF_IO1, 0x3c),
+ MFP_ADDR(DF_IO2, 0x38),
+ MFP_ADDR(DF_IO3, 0x34),
+ MFP_ADDR(DF_IO4, 0x30),
+ MFP_ADDR(DF_IO5, 0x2c),
+ MFP_ADDR(DF_IO6, 0x28),
+ MFP_ADDR(DF_IO7, 0x24),
+ MFP_ADDR(DF_IO8, 0x20),
+ MFP_ADDR(DF_IO9, 0x1c),
+ MFP_ADDR(DF_IO10, 0x18),
+ MFP_ADDR(DF_IO11, 0x14),
+ MFP_ADDR(DF_IO12, 0x10),
+ MFP_ADDR(DF_IO13, 0xc),
+ MFP_ADDR(DF_IO14, 0x8),
+ MFP_ADDR(DF_IO15, 0x4),
+
+ MFP_ADDR(DF_nCS0_SM_nCS2, 0x44),
+ MFP_ADDR(DF_nCS1_SM_nCS3, 0x48),
+ MFP_ADDR(SM_nCS0, 0x4c),
+ MFP_ADDR(SM_nCS1, 0x50),
+ MFP_ADDR(DF_WEn, 0x54),
+ MFP_ADDR(DF_REn, 0x58),
+ MFP_ADDR(DF_CLE_SM_OEn, 0x5c),
+ MFP_ADDR(DF_ALE_SM_WEn, 0x60),
+ MFP_ADDR(SM_SCLK, 0x64),
+ MFP_ADDR(DF_RDY0, 0x68),
+ MFP_ADDR(SM_BE0, 0x6c),
+ MFP_ADDR(SM_BE1, 0x70),
+ MFP_ADDR(SM_ADV, 0x74),
+ MFP_ADDR(DF_RDY1, 0x78),
+ MFP_ADDR(SM_ADVMUX, 0x7c),
+ MFP_ADDR(SM_RDY, 0x80),
+
+ MFP_ADDR_X(MMC1_DAT7, MMC1_WP, 0x84),
+
+ MFP_ADDR_END,
+};
+
+void __init pxa910_init_irq(void)
+{
+ icu_init_irq();
+#ifdef CONFIG_PM
+ icu_irq_chip.irq_set_wake = pxa910_set_wake;
+#endif
+}
+
+static int __init pxa910_init(void)
+{
+ if (cpu_is_pxa910()) {
+#ifdef CONFIG_CACHE_TAUROS2
+ tauros2_init(0);
+#endif
+ mfp_init_base(MFPR_VIRT_BASE);
+ mfp_init_addr(pxa910_mfp_addr_map);
+ pxa_init_dma(IRQ_PXA910_DMA_INT0, 32);
+ pxa910_clk_init();
+ }
+
+ return 0;
+}
+postcore_initcall(pxa910_init);
+
+/* system timer - clock enabled, 3.25MHz */
+#define TIMER_CLK_RST (APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(3))
+#define APBC_TIMERS APBC_REG(0x34)
+
+void __init pxa910_timer_init(void)
+{
+ /* reset and configure */
+ __raw_writel(APBC_APBCLK | APBC_RST, APBC_TIMERS);
+ __raw_writel(TIMER_CLK_RST, APBC_TIMERS);
+
+ timer_init(IRQ_PXA910_AP1_TIMER1);
+}
+
+/* on-chip devices */
+
+/* NOTE: there are totally 3 UARTs on PXA910:
+ *
+ * UART1 - Slow UART (can be used both by AP and CP)
+ * UART2/3 - Fast UART
+ *
+ * To be backward compatible with the legacy FFUART/BTUART/STUART sequence,
+ * they are re-ordered as:
+ *
+ * pxa910_device_uart1 - UART2 as FFUART
+ * pxa910_device_uart2 - UART3 as BTUART
+ *
+ * UART1 is not used by AP for the moment.
+ */
+PXA910_DEVICE(uart1, "pxa2xx-uart", 0, UART2, 0xd4017000, 0x30, 21, 22);
+PXA910_DEVICE(uart2, "pxa2xx-uart", 1, UART3, 0xd4018000, 0x30, 23, 24);
+PXA910_DEVICE(twsi0, "pxa2xx-i2c", 0, TWSI0, 0xd4011000, 0x28);
+PXA910_DEVICE(twsi1, "pxa2xx-i2c", 1, TWSI1, 0xd4025000, 0x28);
+PXA910_DEVICE(pwm1, "pxa910-pwm", 0, NONE, 0xd401a000, 0x10);
+PXA910_DEVICE(pwm2, "pxa910-pwm", 1, NONE, 0xd401a400, 0x10);
+PXA910_DEVICE(pwm3, "pxa910-pwm", 2, NONE, 0xd401a800, 0x10);
+PXA910_DEVICE(pwm4, "pxa910-pwm", 3, NONE, 0xd401ac00, 0x10);
+PXA910_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
+PXA910_DEVICE(disp, "mmp-disp", 0, LCD, 0xd420b000, 0x1ec);
+PXA910_DEVICE(fb, "mmp-fb", -1, NONE, 0, 0);
+PXA910_DEVICE(panel, "tpo-hvga", -1, NONE, 0, 0);
+
+struct resource pxa910_resource_gpio[] = {
+ {
+ .start = 0xd4019000,
+ .end = 0xd4019fff,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = IRQ_PXA910_AP_GPIO,
+ .end = IRQ_PXA910_AP_GPIO,
+ .name = "gpio_mux",
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device pxa910_device_gpio = {
+ .name = "mmp-gpio",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(pxa910_resource_gpio),
+ .resource = pxa910_resource_gpio,
+};
+
+static struct resource pxa910_resource_rtc[] = {
+ {
+ .start = 0xd4010000,
+ .end = 0xd401003f,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = IRQ_PXA910_RTC_INT,
+ .end = IRQ_PXA910_RTC_INT,
+ .name = "rtc 1Hz",
+ .flags = IORESOURCE_IRQ,
+ }, {
+ .start = IRQ_PXA910_RTC_ALARM,
+ .end = IRQ_PXA910_RTC_ALARM,
+ .name = "rtc alarm",
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device pxa910_device_rtc = {
+ .name = "sa1100-rtc",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(pxa910_resource_rtc),
+ .resource = pxa910_resource_rtc,
+};