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-rw-r--r--arch/arm/mach-integrator/common.h7
-rw-r--r--arch/arm/mach-integrator/core.c50
-rw-r--r--arch/arm/mach-integrator/include/mach/platform.h1
-rw-r--r--arch/arm/mach-integrator/integrator_ap.c46
-rw-r--r--arch/arm/mach-integrator/integrator_cp.c4
-rw-r--r--arch/arm/mach-integrator/pci_v3.c23
6 files changed, 69 insertions, 62 deletions
diff --git a/arch/arm/mach-integrator/common.h b/arch/arm/mach-integrator/common.h
index fc9f47d289f4..79197d8b34aa 100644
--- a/arch/arm/mach-integrator/common.h
+++ b/arch/arm/mach-integrator/common.h
@@ -1,5 +1,10 @@
#include <linux/amba/serial.h>
-extern struct amba_pl010_data integrator_uart_data;
+#ifdef CONFIG_ARCH_INTEGRATOR_AP
+extern struct amba_pl010_data ap_uart_data;
+#else
+/* Not used without Integrator/AP support anyway */
+struct amba_pl010_data ap_uart_data {};
+#endif
void integrator_init_early(void);
int integrator_init(bool is_cp);
void integrator_reserve(void);
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index 161fbf8596bd..39c060f75e47 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -18,7 +18,6 @@
#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>
@@ -47,10 +46,10 @@ static AMBA_APB_DEVICE(rtc, "rtc", 0,
INTEGRATOR_RTC_BASE, INTEGRATOR_RTC_IRQ, NULL);
static AMBA_APB_DEVICE(uart0, "uart0", 0,
- INTEGRATOR_UART0_BASE, INTEGRATOR_UART0_IRQ, &integrator_uart_data);
+ INTEGRATOR_UART0_BASE, INTEGRATOR_UART0_IRQ, NULL);
static AMBA_APB_DEVICE(uart1, "uart1", 0,
- INTEGRATOR_UART1_BASE, INTEGRATOR_UART1_IRQ, &integrator_uart_data);
+ INTEGRATOR_UART1_BASE, INTEGRATOR_UART1_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);
@@ -78,6 +77,8 @@ int __init integrator_init(bool is_cp)
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++) {
@@ -90,49 +91,6 @@ int __init integrator_init(bool is_cp)
#endif
-/*
- * 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;
- u32 phybase = dev->res.start;
-
- if (phybase == INTEGRATOR_UART0_BASE) {
- /* UART0 */
- rts_mask = 1 << 4;
- dtr_mask = 1 << 5;
- } else {
- /* UART1 */
- 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);
-}
-
-struct amba_pl010_data integrator_uart_data = {
- .set_mctrl = integrator_uart_set_mctrl,
-};
-
static DEFINE_RAW_SPINLOCK(cm_lock);
/**
diff --git a/arch/arm/mach-integrator/include/mach/platform.h b/arch/arm/mach-integrator/include/mach/platform.h
index efeac5d0bc9e..be5859efe10e 100644
--- a/arch/arm/mach-integrator/include/mach/platform.h
+++ b/arch/arm/mach-integrator/include/mach/platform.h
@@ -190,7 +190,6 @@
#define INTEGRATOR_SC_CTRLC_OFFSET 0x0C
#define INTEGRATOR_SC_DEC_OFFSET 0x10
#define INTEGRATOR_SC_ARB_OFFSET 0x14
-#define INTEGRATOR_SC_PCIENABLE_OFFSET 0x18
#define INTEGRATOR_SC_LOCK_OFFSET 0x1C
#define INTEGRATOR_SC_BASE 0x11000000
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index 771cbe44b662..a0a7cbbb7a70 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -39,6 +39,7 @@
#include <linux/of_platform.h>
#include <linux/stat.h>
#include <linux/sys_soc.h>
+#include <linux/termios.h>
#include <video/vga.h>
#include <mach/hardware.h>
@@ -63,7 +64,7 @@
#include "common.h"
/* Base address to the AP system controller */
-static void __iomem *ap_syscon_base;
+void __iomem *ap_syscon_base;
/*
* All IO addresses are mapped onto VA 0xFFFx.xxxx, where x.xxxx
@@ -251,6 +252,45 @@ static struct physmap_flash_data ap_flash_data = {
};
/*
+ * For the PL010 found in the Integrator/AP some of the UART control is
+ * implemented in the system controller and accessed using a callback
+ * from the driver.
+ */
+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;
+ u32 phybase = dev->res.start;
+
+ if (phybase == INTEGRATOR_UART0_BASE) {
+ /* UART0 */
+ rts_mask = 1 << 4;
+ dtr_mask = 1 << 5;
+ } else {
+ /* UART1 */
+ 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, ap_syscon_base + INTEGRATOR_SC_CTRLS_OFFSET);
+ __raw_writel(ctrlc, ap_syscon_base + INTEGRATOR_SC_CTRLC_OFFSET);
+}
+
+struct amba_pl010_data ap_uart_data = {
+ .set_mctrl = integrator_uart_set_mctrl,
+};
+
+/*
* Where is the timer (VA)?
*/
#define TIMER0_VA_BASE __io_address(INTEGRATOR_TIMER0_BASE)
@@ -447,9 +487,9 @@ static struct of_dev_auxdata ap_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_RTC_BASE,
"rtc", NULL),
OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART0_BASE,
- "uart0", &integrator_uart_data),
+ "uart0", &ap_uart_data),
OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART1_BASE,
- "uart1", &integrator_uart_data),
+ "uart1", &ap_uart_data),
OF_DEV_AUXDATA("arm,primecell", KMI0_BASE,
"kmi0", NULL),
OF_DEV_AUXDATA("arm,primecell", KMI1_BASE,
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index c4b6af9a4239..29df06b35d0d 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -306,9 +306,9 @@ static struct of_dev_auxdata intcp_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_RTC_BASE,
"rtc", NULL),
OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART0_BASE,
- "uart0", &integrator_uart_data),
+ "uart0", NULL),
OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART1_BASE,
- "uart1", &integrator_uart_data),
+ "uart1", NULL),
OF_DEV_AUXDATA("arm,primecell", KMI0_BASE,
"kmi0", NULL),
OF_DEV_AUXDATA("arm,primecell", KMI1_BASE,
diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index bbeca59df66b..000edcda4596 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -388,9 +388,10 @@ static int __init pci_v3_setup_resources(struct pci_sys_data *sys)
* means I can't get additional information on the reason for the pm2fb
* problems. I suppose I'll just have to mind-meld with the machine. ;)
*/
-#define SC_PCI __io_address(INTEGRATOR_SC_PCIENABLE)
-#define SC_LBFADDR __io_address(INTEGRATOR_SC_BASE + 0x20)
-#define SC_LBFCODE __io_address(INTEGRATOR_SC_BASE + 0x24)
+static void __iomem *ap_syscon_base;
+#define INTEGRATOR_SC_PCIENABLE_OFFSET 0x18
+#define INTEGRATOR_SC_LBFADDR_OFFSET 0x20
+#define INTEGRATOR_SC_LBFCODE_OFFSET 0x24
static int
v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
@@ -401,13 +402,13 @@ v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
char buf[128];
sprintf(buf, "V3 fault: addr 0x%08lx, FSR 0x%03x, PC 0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x ISTAT=%02x\n",
- addr, fsr, pc, instr, __raw_readl(SC_LBFADDR), __raw_readl(SC_LBFCODE) & 255,
+ addr, fsr, pc, instr, __raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFADDR_OFFSET), __raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFCODE_OFFSET) & 255,
v3_readb(V3_LB_ISTAT));
printk(KERN_DEBUG "%s", buf);
#endif
v3_writeb(V3_LB_ISTAT, 0);
- __raw_writel(3, SC_PCI);
+ __raw_writel(3, ap_syscon_base + INTEGRATOR_SC_PCIENABLE_OFFSET);
/*
* If the instruction being executed was a read,
@@ -449,15 +450,15 @@ static irqreturn_t v3_irq(int dummy, void *devid)
sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x "
"ISTAT=%02x\n", IRQ_AP_V3INT, pc, instr,
- __raw_readl(SC_LBFADDR),
- __raw_readl(SC_LBFCODE) & 255,
+ __raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFADDR_OFFSET),
+ __raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFCODE_OFFSET) & 255,
v3_readb(V3_LB_ISTAT));
printascii(buf);
#endif
v3_writew(V3_PCI_STAT, 0xf000);
v3_writeb(V3_LB_ISTAT, 0);
- __raw_writel(3, SC_PCI);
+ __raw_writel(3, ap_syscon_base + INTEGRATOR_SC_PCIENABLE_OFFSET);
#ifdef CONFIG_DEBUG_LL
/*
@@ -480,6 +481,10 @@ int __init pci_v3_setup(int nr, struct pci_sys_data *sys)
if (nr == 0) {
sys->mem_offset = PHYS_PCI_MEM_BASE;
ret = pci_v3_setup_resources(sys);
+ /* Remap the Integrator system controller */
+ ap_syscon_base = ioremap(INTEGRATOR_SC_BASE, 0x100);
+ if (!ap_syscon_base)
+ return -EINVAL;
}
return ret;
@@ -568,7 +573,7 @@ void __init pci_v3_preinit(void)
v3_writeb(V3_LB_ISTAT, 0);
v3_writew(V3_LB_CFG, v3_readw(V3_LB_CFG) | (1 << 10));
v3_writeb(V3_LB_IMASK, 0x28);
- __raw_writel(3, SC_PCI);
+ __raw_writel(3, ap_syscon_base + INTEGRATOR_SC_PCIENABLE_OFFSET);
/*
* Grab the PCI error interrupt.
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-02 16:07:06 +0300