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-rw-r--r--arch/arm/mach-integrator/core.c207
1 files changed, 107 insertions, 100 deletions
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index eaf6c6366ff..39c060f75e4 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -11,29 +11,30 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
+#include <linux/export.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/memblock.h>
#include <linux/sched.h>
#include <linux/smp.h>
-#include <linux/termios.h>
#include <linux/amba/bus.h>
#include <linux/amba/serial.h>
#include <linux/io.h>
-#include <linux/clkdev.h>
+#include <linux/stat.h>
#include <mach/hardware.h>
#include <mach/platform.h>
#include <mach/cm.h>
#include <mach/irqs.h>
-#include <asm/leds.h>
#include <asm/mach-types.h>
#include <asm/mach/time.h>
#include <asm/pgtable.h>
-static struct amba_pl010_data integrator_uart_data;
+#include "common.h"
+
+#ifdef CONFIG_ATAGS
#define INTEGRATOR_RTC_IRQ { IRQ_RTCINT }
#define INTEGRATOR_UART0_IRQ { IRQ_UARTINT0 }
@@ -41,17 +42,17 @@ static struct amba_pl010_data integrator_uart_data;
#define KMI0_IRQ { IRQ_KMIINT0 }
#define KMI1_IRQ { IRQ_KMIINT1 }
-static AMBA_APB_DEVICE(rtc, "mb:15", 0,
+static AMBA_APB_DEVICE(rtc, "rtc", 0,
INTEGRATOR_RTC_BASE, INTEGRATOR_RTC_IRQ, NULL);
-static AMBA_APB_DEVICE(uart0, "mb:16", 0,
- INTEGRATOR_UART0_BASE, INTEGRATOR_UART0_IRQ, &integrator_uart_data);
+static AMBA_APB_DEVICE(uart0, "uart0", 0,
+ INTEGRATOR_UART0_BASE, INTEGRATOR_UART0_IRQ, NULL);
-static AMBA_APB_DEVICE(uart1, "mb:17", 0,
- INTEGRATOR_UART1_BASE, INTEGRATOR_UART1_IRQ, &integrator_uart_data);
+static AMBA_APB_DEVICE(uart1, "uart1", 0,
+ INTEGRATOR_UART1_BASE, INTEGRATOR_UART1_IRQ, NULL);
-static AMBA_APB_DEVICE(kmi0, "mb:18", 0, KMI0_BASE, KMI0_IRQ, NULL);
-static AMBA_APB_DEVICE(kmi1, "mb:19", 0, KMI1_BASE, KMI1_IRQ, NULL);
+static AMBA_APB_DEVICE(kmi0, "kmi0", 0, KMI0_BASE, KMI0_IRQ, NULL);
+static AMBA_APB_DEVICE(kmi1, "kmi1", 0, KMI1_BASE, KMI1_IRQ, NULL);
static struct amba_device *amba_devs[] __initdata = {
&rtc_device,
@@ -61,51 +62,7 @@ static struct amba_device *amba_devs[] __initdata = {
&kmi1_device,
};
-/*
- * These are fixed clocks.
- */
-static struct clk clk24mhz = {
- .rate = 24000000,
-};
-
-static struct clk uartclk = {
- .rate = 14745600,
-};
-
-static struct clk dummy_apb_pclk;
-
-static struct clk_lookup lookups[] = {
- { /* Bus clock */
- .con_id = "apb_pclk",
- .clk = &dummy_apb_pclk,
- }, {
- /* Integrator/AP timer frequency */
- .dev_id = "ap_timer",
- .clk = &clk24mhz,
- }, { /* UART0 */
- .dev_id = "mb:16",
- .clk = &uartclk,
- }, { /* UART1 */
- .dev_id = "mb:17",
- .clk = &uartclk,
- }, { /* KMI0 */
- .dev_id = "mb:18",
- .clk = &clk24mhz,
- }, { /* KMI1 */
- .dev_id = "mb:19",
- .clk = &clk24mhz,
- }, { /* MMCI - IntegratorCP */
- .dev_id = "mb:1c",
- .clk = &uartclk,
- }
-};
-
-void __init integrator_init_early(void)
-{
- clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-}
-
-static int __init integrator_init(void)
+int __init integrator_init(bool is_cp)
{
int i;
@@ -114,12 +71,14 @@ static int __init integrator_init(void)
* hard-code them. The Integator/CP and forward have proper cell IDs.
* Else we leave them undefined to the bus driver can autoprobe them.
*/
- if (machine_is_integrator()) {
+ if (!is_cp) {
rtc_device.periphid = 0x00041030;
uart0_device.periphid = 0x00041010;
uart1_device.periphid = 0x00041010;
kmi0_device.periphid = 0x00041050;
kmi1_device.periphid = 0x00041050;
+ uart0_device.dev.platform_data = &ap_uart_data;
+ uart1_device.dev.platform_data = &ap_uart_data;
}
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
@@ -130,49 +89,7 @@ static int __init integrator_init(void)
return 0;
}
-arch_initcall(integrator_init);
-
-/*
- * On the Integrator platform, the port RTS and DTR are provided by
- * bits in the following SC_CTRLS register bits:
- * RTS DTR
- * UART0 7 6
- * UART1 5 4
- */
-#define SC_CTRLC IO_ADDRESS(INTEGRATOR_SC_CTRLC)
-#define SC_CTRLS IO_ADDRESS(INTEGRATOR_SC_CTRLS)
-
-static void integrator_uart_set_mctrl(struct amba_device *dev, void __iomem *base, unsigned int mctrl)
-{
- unsigned int ctrls = 0, ctrlc = 0, rts_mask, dtr_mask;
-
- if (dev == &uart0_device) {
- rts_mask = 1 << 4;
- dtr_mask = 1 << 5;
- } else {
- rts_mask = 1 << 6;
- dtr_mask = 1 << 7;
- }
-
- if (mctrl & TIOCM_RTS)
- ctrlc |= rts_mask;
- else
- ctrls |= rts_mask;
-
- if (mctrl & TIOCM_DTR)
- ctrlc |= dtr_mask;
- else
- ctrls |= dtr_mask;
-
- __raw_writel(ctrls, SC_CTRLS);
- __raw_writel(ctrlc, SC_CTRLC);
-}
-
-static struct amba_pl010_data integrator_uart_data = {
- .set_mctrl = integrator_uart_set_mctrl,
-};
-
-#define CM_CTRL IO_ADDRESS(INTEGRATOR_HDR_CTRL)
+#endif
static DEFINE_RAW_SPINLOCK(cm_lock);
@@ -211,3 +128,93 @@ void integrator_restart(char mode, const char *cmd)
{
cm_control(CM_CTRL_RESET, CM_CTRL_RESET);
}
+
+static u32 integrator_id;
+
+static ssize_t intcp_get_manf(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%02x\n", integrator_id >> 24);
+}
+
+static struct device_attribute intcp_manf_attr =
+ __ATTR(manufacturer, S_IRUGO, intcp_get_manf, NULL);
+
+static ssize_t intcp_get_arch(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ const char *arch;
+
+ switch ((integrator_id >> 16) & 0xff) {
+ case 0x00:
+ arch = "ASB little-endian";
+ break;
+ case 0x01:
+ arch = "AHB little-endian";
+ break;
+ case 0x03:
+ arch = "AHB-Lite system bus, bi-endian";
+ break;
+ case 0x04:
+ arch = "AHB";
+ break;
+ default:
+ arch = "Unknown";
+ break;
+ }
+
+ return sprintf(buf, "%s\n", arch);
+}
+
+static struct device_attribute intcp_arch_attr =
+ __ATTR(architecture, S_IRUGO, intcp_get_arch, NULL);
+
+static ssize_t intcp_get_fpga(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ const char *fpga;
+
+ switch ((integrator_id >> 12) & 0xf) {
+ case 0x01:
+ fpga = "XC4062";
+ break;
+ case 0x02:
+ fpga = "XC4085";
+ break;
+ case 0x04:
+ fpga = "EPM7256AE (Altera PLD)";
+ break;
+ default:
+ fpga = "Unknown";
+ break;
+ }
+
+ return sprintf(buf, "%s\n", fpga);
+}
+
+static struct device_attribute intcp_fpga_attr =
+ __ATTR(fpga, S_IRUGO, intcp_get_fpga, NULL);
+
+static ssize_t intcp_get_build(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%02x\n", (integrator_id >> 4) & 0xFF);
+}
+
+static struct device_attribute intcp_build_attr =
+ __ATTR(build, S_IRUGO, intcp_get_build, NULL);
+
+
+
+void integrator_init_sysfs(struct device *parent, u32 id)
+{
+ integrator_id = id;
+ device_create_file(parent, &intcp_manf_attr);
+ device_create_file(parent, &intcp_arch_attr);
+ device_create_file(parent, &intcp_fpga_attr);
+ device_create_file(parent, &intcp_build_attr);
+}