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-rw-r--r--arch/ppc/Kconfig7
-rw-r--r--arch/ppc/configs/sandpoint_defconfig2
-rw-r--r--arch/ppc/platforms/sandpoint.c17
-rw-r--r--arch/ppc/syslib/mpc10x_common.c53
-rw-r--r--include/asm-ppc/mpc10x.h3
5 files changed, 63 insertions, 19 deletions
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index be4e629e69d0..a862c037c65d 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -878,6 +878,13 @@ config MPC10X_STORE_GATHERING
bool "Enable MPC10x store gathering"
depends on MPC10X_BRIDGE
+config SANDPOINT_ENABLE_UART1
+ bool "Enable DUART mode on Sandpoint"
+ depends on SANDPOINT
+ help
+ If this option is enabled then the MPC824x processor will run
+ in DUART mode instead of UART mode.
+
config CPC710_DATA_GATHERING
bool "Enable CPC710 data gathering"
depends on K2
diff --git a/arch/ppc/configs/sandpoint_defconfig b/arch/ppc/configs/sandpoint_defconfig
index 0f4393a07f82..fb493a67c60d 100644
--- a/arch/ppc/configs/sandpoint_defconfig
+++ b/arch/ppc/configs/sandpoint_defconfig
@@ -437,7 +437,7 @@ CONFIG_SOUND_GAMEPORT=y
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=2
+CONFIG_SERIAL_8250_NR_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
#
diff --git a/arch/ppc/platforms/sandpoint.c b/arch/ppc/platforms/sandpoint.c
index 8b149c2fc54f..21e31346b12b 100644
--- a/arch/ppc/platforms/sandpoint.c
+++ b/arch/ppc/platforms/sandpoint.c
@@ -311,19 +311,22 @@ sandpoint_setup_arch(void)
{
bd_t *bp = (bd_t *)__res;
struct plat_serial8250_port *pdata;
- pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC10X_DUART);
+ pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC10X_UART0);
if (pdata)
{
pdata[0].uartclk = bp->bi_busfreq;
- pdata[0].membase = ioremap(pdata[0].mapbase, 0x100);
+ }
- /* this disables the 2nd serial port on the DUART
- * since the sandpoint does not have it connected */
- pdata[1].uartclk = 0;
- pdata[1].irq = 0;
- pdata[1].mapbase = 0;
+#ifdef CONFIG_SANDPOINT_ENABLE_UART1
+ pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(MPC10X_UART1);
+ if (pdata)
+ {
+ pdata[0].uartclk = bp->bi_busfreq;
}
+#else
+ ppc_sys_device_remove(MPC10X_UART1);
+#endif
}
printk(KERN_INFO "Motorola SPS Sandpoint Test Platform\n");
diff --git a/arch/ppc/syslib/mpc10x_common.c b/arch/ppc/syslib/mpc10x_common.c
index 8fc5f4154521..87065e2e4c5f 100644
--- a/arch/ppc/syslib/mpc10x_common.c
+++ b/arch/ppc/syslib/mpc10x_common.c
@@ -45,24 +45,29 @@
#define MPC10X_DMA0_IRQ (EPIC_IRQ_BASE + 1 + NUM_8259_INTERRUPTS)
#define MPC10X_DMA1_IRQ (EPIC_IRQ_BASE + 2 + NUM_8259_INTERRUPTS)
#define MPC10X_UART0_IRQ (EPIC_IRQ_BASE + 4 + NUM_8259_INTERRUPTS)
+#define MPC10X_UART1_IRQ (EPIC_IRQ_BASE + 5 + NUM_8259_INTERRUPTS)
#else
#define MPC10X_I2C_IRQ -1
#define MPC10X_DMA0_IRQ -1
#define MPC10X_DMA1_IRQ -1
#define MPC10X_UART0_IRQ -1
+#define MPC10X_UART1_IRQ -1
#endif
static struct fsl_i2c_platform_data mpc10x_i2c_pdata = {
.device_flags = 0,
};
-static struct plat_serial8250_port serial_platform_data[] = {
+static struct plat_serial8250_port serial_plat_uart0[] = {
[0] = {
.mapbase = 0x4500,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
},
- [1] = {
+ { },
+};
+static struct plat_serial8250_port serial_plat_uart1[] = {
+ [0] = {
.mapbase = 0x4600,
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
@@ -133,11 +138,17 @@ struct platform_device ppc_sys_platform_devices[] = {
},
},
},
- [MPC10X_DUART] = {
+ [MPC10X_UART0] = {
.name = "serial8250",
.id = 0,
- .dev.platform_data = serial_platform_data,
+ .dev.platform_data = serial_plat_uart0,
},
+ [MPC10X_UART1] = {
+ .name = "serial8250",
+ .id = 1,
+ .dev.platform_data = serial_plat_uart1,
+ },
+
};
/* We use the PCI ID to match on */
@@ -147,10 +158,10 @@ struct ppc_sys_spec ppc_sys_specs[] = {
.ppc_sys_name = "8245",
.mask = 0xFFFFFFFF,
.value = MPC10X_BRIDGE_8245,
- .num_devices = 4,
+ .num_devices = 5,
.device_list = (enum ppc_sys_devices[])
{
- MPC10X_IIC1, MPC10X_DMA0, MPC10X_DMA1, MPC10X_DUART,
+ MPC10X_IIC1, MPC10X_DMA0, MPC10X_DMA1, MPC10X_UART0, MPC10X_UART1,
},
},
{
@@ -180,6 +191,25 @@ struct ppc_sys_spec ppc_sys_specs[] = {
},
};
+/*
+ * mach_mpc10x_fixup: This function enables DUART mode if it detects
+ * if it detects two UARTS in the platform device entries.
+ */
+static int __init mach_mpc10x_fixup(struct platform_device *pdev)
+{
+ if (strncmp (pdev->name, "serial8250", 10) == 0 && pdev->id == 1)
+ writeb(readb(serial_plat_uart1[0].membase + 0x11) | 0x1,
+ serial_plat_uart1[0].membase + 0x11);
+ return 0;
+}
+
+static int __init mach_mpc10x_init(void)
+{
+ ppc_sys_device_fixup = mach_mpc10x_fixup;
+ return 0;
+}
+postcore_initcall(mach_mpc10x_init);
+
/* Set resources to match bridge memory map */
void __init
mpc10x_bridge_set_resources(int map, struct pci_controller *hose)
@@ -219,6 +249,7 @@ mpc10x_bridge_set_resources(int map, struct pci_controller *hose)
ppc_md.progress("mpc10x:exit1", 0x100);
}
}
+
/*
* Do some initialization and put the EUMB registers at the specified address
* (also map the EPIC registers into virtual space--OpenPIC_Addr will be set).
@@ -411,11 +442,13 @@ mpc10x_bridge_init(struct pci_controller *hose,
ppc_sys_platform_devices[MPC10X_DMA1].resource[1].start = MPC10X_DMA1_IRQ;
ppc_sys_platform_devices[MPC10X_DMA1].resource[1].end = MPC10X_DMA1_IRQ;
- serial_platform_data[0].mapbase += phys_eumb_base;
- serial_platform_data[0].irq = MPC10X_UART0_IRQ;
+ serial_plat_uart0[0].mapbase += phys_eumb_base;
+ serial_plat_uart0[0].irq = MPC10X_UART0_IRQ;
+ serial_plat_uart0[0].membase = ioremap(serial_plat_uart0[0].mapbase, 0x100);
- serial_platform_data[1].mapbase += phys_eumb_base;
- serial_platform_data[1].irq = MPC10X_UART0_IRQ + 1;
+ serial_plat_uart1[0].mapbase += phys_eumb_base;
+ serial_plat_uart1[0].irq = MPC10X_UART1_IRQ;
+ serial_plat_uart1[0].membase = ioremap(serial_plat_uart1[0].mapbase, 0x100);
/*
* 8240 erratum 26, 8241/8245 erratum 29, 107 erratum 23: speculative
diff --git a/include/asm-ppc/mpc10x.h b/include/asm-ppc/mpc10x.h
index f5196a4efbe0..77b1e092c206 100644
--- a/include/asm-ppc/mpc10x.h
+++ b/include/asm-ppc/mpc10x.h
@@ -163,7 +163,8 @@ enum ppc_sys_devices {
MPC10X_IIC1,
MPC10X_DMA0,
MPC10X_DMA1,
- MPC10X_DUART,
+ MPC10X_UART0,
+ MPC10X_UART1,
};
int mpc10x_bridge_init(struct pci_controller *hose,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 00:51:54 +0000