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authorGrant C. Likely <grant.likely@secretlab.ca>2006-01-19 01:13:03 -0700
committerPaul Mackerras <paulus@samba.org>2006-02-07 22:35:59 +1100
commite27db622b850e6426b69ef42e5678ba068c7f8e0 (patch)
tree57b7aeb1d6611d9d7f38e69ac6f0cbed3a3a3c7c /arch/ppc/platforms/4xx
parent1a42e53d175074f340a3f85042ed64cfc51be216 (diff)
[PATCH] powerpc: Migrate ML300 reference design to the platform bus
Signed-off-by: Grant C. Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc/platforms/4xx')
-rw-r--r--arch/ppc/platforms/4xx/xilinx_ml300.c74
-rw-r--r--arch/ppc/platforms/4xx/xilinx_ml300.h2
2 files changed, 53 insertions, 23 deletions
diff --git a/arch/ppc/platforms/4xx/xilinx_ml300.c b/arch/ppc/platforms/4xx/xilinx_ml300.c
index b0de0a2f131..267afb50607 100644
--- a/arch/ppc/platforms/4xx/xilinx_ml300.c
+++ b/arch/ppc/platforms/4xx/xilinx_ml300.c
@@ -17,12 +17,14 @@
#include <linux/tty.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
+#include <linux/serial_8250.h>
#include <linux/serialP.h>
#include <asm/io.h>
#include <asm/machdep.h>
-#include <asm/ocp.h>
+#include <asm/ppc_sys.h>
-#include <platforms/4xx/virtex.h> /* for NR_SER_PORTS */
+#include <syslib/gen550.h>
+#include <platforms/4xx/xparameters/xparameters.h>
/*
* As an overview of how the following functions (platform_init,
@@ -54,6 +56,22 @@
* ppc4xx_pic_init arch/ppc/syslib/xilinx_pic.c
*/
+/* Board specifications structures */
+struct ppc_sys_spec *cur_ppc_sys_spec;
+struct ppc_sys_spec ppc_sys_specs[] = {
+ {
+ /* Only one entry, always assume the same design */
+ .ppc_sys_name = "Xilinx ML300 Reference Design",
+ .mask = 0x00000000,
+ .value = 0x00000000,
+ .num_devices = 1,
+ .device_list = (enum ppc_sys_devices[])
+ {
+ VIRTEX_UART,
+ },
+ },
+};
+
#if defined(XPAR_POWER_0_POWERDOWN_BASEADDR)
static volatile unsigned *powerdown_base =
@@ -80,28 +98,39 @@ ml300_map_io(void)
#endif
}
+/* Early serial support functions */
static void __init
+ml300_early_serial_init(int num, struct plat_serial8250_port *pdata)
+{
+#if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
+ struct uart_port serial_req;
+
+ memset(&serial_req, 0, sizeof(serial_req));
+ serial_req.mapbase = pdata->mapbase;
+ serial_req.membase = pdata->membase;
+ serial_req.irq = pdata->irq;
+ serial_req.uartclk = pdata->uartclk;
+ serial_req.regshift = pdata->regshift;
+ serial_req.iotype = pdata->iotype;
+ serial_req.flags = pdata->flags;
+ gen550_init(num, &serial_req);
+#endif
+}
+
+void __init
ml300_early_serial_map(void)
{
#ifdef CONFIG_SERIAL_8250
- struct serial_state old_ports[] = { SERIAL_PORT_DFNS };
- struct uart_port port;
- int i;
-
- /* Setup ioremapped serial port access */
- for (i = 0; i < ARRAY_SIZE(old_ports); i++ ) {
- memset(&port, 0, sizeof(port));
- port.membase = ioremap((phys_addr_t)(old_ports[i].iomem_base), 16);
- port.irq = old_ports[i].irq;
- port.uartclk = old_ports[i].baud_base * 16;
- port.regshift = old_ports[i].iomem_reg_shift;
- port.iotype = SERIAL_IO_MEM;
- port.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
- port.line = i;
-
- if (early_serial_setup(&port) != 0) {
- printk("Early serial init of port %d failed\n", i);
- }
+ struct plat_serial8250_port *pdata;
+ int i = 0;
+
+ pdata = (struct plat_serial8250_port *) ppc_sys_get_pdata(VIRTEX_UART);
+ while(pdata && pdata->flags)
+ {
+ pdata->membase = ioremap(pdata->mapbase, 0x100);
+ ml300_early_serial_init(i, pdata);
+ pdata++;
+ i++;
}
#endif /* CONFIG_SERIAL_8250 */
}
@@ -109,9 +138,8 @@ ml300_early_serial_map(void)
void __init
ml300_setup_arch(void)
{
- ppc4xx_setup_arch(); /* calls ppc4xx_find_bridges() */
-
ml300_early_serial_map();
+ ppc4xx_setup_arch(); /* calls ppc4xx_find_bridges() */
/* Identify the system */
printk(KERN_INFO "Xilinx Virtex-II Pro port\n");
@@ -131,6 +159,8 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
{
ppc4xx_init(r3, r4, r5, r6, r7);
+ identify_ppc_sys_by_id(mfspr(SPRN_PVR));
+
ppc_md.setup_arch = ml300_setup_arch;
ppc_md.setup_io_mappings = ml300_map_io;
ppc_md.init_IRQ = ml300_init_irq;
diff --git a/arch/ppc/platforms/4xx/xilinx_ml300.h b/arch/ppc/platforms/4xx/xilinx_ml300.h
index 89939814362..ae8bf1353b0 100644
--- a/arch/ppc/platforms/4xx/xilinx_ml300.h
+++ b/arch/ppc/platforms/4xx/xilinx_ml300.h
@@ -41,7 +41,7 @@ typedef struct board_info {
#define PPC4xx_ONB_IO_VADDR 0u
#define PPC4xx_ONB_IO_SIZE 0u
-#define PPC4xx_MACHINE_NAME "Xilinx ML300"
+#define PPC4xx_MACHINE_NAME "Xilinx ML300 Reference System"
#endif /* __ASM_XILINX_ML300_H__ */
#endif /* __KERNEL__ */