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[PATCH] powerpc: Migrate ML300 reference design to the platform bus

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Signed-off-by: Grant C. Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Grant C. Likely 2006-01-19 01:13:03 -07:00 committed by Paul Mackerras
parent 1a42e53d17
commit e27db622b8
4 changed files with 54 additions and 24 deletions
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2
arch/ppc/Kconfig.debug
View File

@ -67,7 +67,7 @@ config SERIAL_TEXT_DEBUG
config PPC_OCP
bool
depends on IBM_OCP || XILINX_OCP
depends on IBM_OCP
default y
endmenu

72
arch/ppc/platforms/4xx/xilinx_ml300.c
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@ -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;
struct plat_serial8250_port *pdata;
int i = 0;
/* 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);
}
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;

2
arch/ppc/platforms/4xx/xilinx_ml300.h
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@ -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__ */

2
arch/ppc/syslib/Makefile
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@ -18,7 +18,7 @@ obj-$(CONFIG_440SP) += ibm440gx_common.o ibm440sp_common.o
obj-$(CONFIG_440SPE) += ibm440gx_common.o ibm440sp_common.o ppc440spe_pcie.o
ifeq ($(CONFIG_4xx),y)
ifeq ($(CONFIG_XILINX_VIRTEX),y)
obj-$(CONFIG_40x) += xilinx_pic.o
obj-$(CONFIG_40x) += xilinx_pic.o ppc_sys.o
else
ifeq ($(CONFIG_403),y)
obj-$(CONFIG_40x) += ppc403_pic.o