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highbank: use the provided dtb by the firmware to probe barebox device and mem size 

the dtb is at 0x1000

if no dtb present use C code device

keep in C the timer/gpio/uart

have a nice tree

barebox 2013.02.0-00294-g6802ddf #124 Wed Feb 13 02:31:01 CST 2013

Board: Calxeda Highbank
memory: ram0: 0xff900000@0x0
highbank: dtb probed memory size
registered netconsole as cs1
malloc space: 0x03500000 -> 0x03efffff (size 10 MiB)
Open /dev/env0 No such file or directory
no valid environment found on /dev/env0. Using default environment
running /env/bin/init...
ahci ffe08000.sata: port 0: SATA link ok
ahci ffe08000.sata: port 0: Spinning up device...
ahci ffe08000.sata: port 0: ok.
ahci ffe08000.sata: registered /dev/ata0
eth0: got preset MAC address: 52:54:00:12:34:56
eth1: got preset MAC address: 52:54:00:12:34:57

Hit any key to stop autoboot:  3
[barebox@Calxeda Highbank]:/
 # devinfo
devices:
`---- platform
     `---- mem0
          `---- 0x00000000-0x3fffffff: /dev/ram0
          `---- 0x00001000-0x00010fff: /dev/dtb
     `---- mem1
          `---- 0x00000000-0x000051af: /dev/defaultenv
     `---- mem2
          `---- 0x00000000-0xfffffffe: /dev/mem
     `---- cs1
     `---- fff10600.timer
     `---- fff10620.watchdog
     `---- fff11000.interrupt-controller
     `---- l2-cache
     `---- ffe08000.sata
          `---- 0x00000000-0x3fffffff: /dev/ata0
          `---- 0x00100000-0x014fffff: /dev/ata0.0
          `---- 0x01500000-0x3fffffff: /dev/ata0.1
     `---- ffe0e000.sdhci
     `---- fff00000.memory-controller
     `---- mem3
     `---- fff3c000.sregs
     `---- fff3c200.sregs
     `---- fff50000.ethernet
          `---- eth0
     `---- fff51000.ethernet
          `---- eth1
`---- amba
     `---- sp804
     `---- uart-pl011
          `---- cs0
     `---- fff30000.gpio
     `---- fff31000.gpio
     `---- fff32000.gpio
     `---- fff33000.gpio
     `---- fff35000.rtc
`---- fs
     `---- ramfs0
     `---- devfs0
`---- net
`---- global

drivers:
uart-pl011
sp804
pl061_gpio
ramfs
devfs
tftp
hb-xgmac
ahci
mem
[barebox@Calxeda Highbank]:/
 #

Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2013-02-13 11:06:44 +01:00 committed by Sascha Hauer
parent 2a6e668821
commit d8da8c23e9
3 changed files with 52 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm/boards/highbank/env/bin/init_board vendored Normal file
View File

@ -0,0 +1,7 @@
#!/bin/sh
if [ -e /dev/dtb ]
then
oftree -l /dev/dtb
oftree -p
fi

52
arch/arm/boards/highbank/init.c
View File

@ -15,23 +15,59 @@
#include <sizes.h>
#include <io.h>
#define FIRMWARE_DTB_BASE 0x1000
struct fdt_header *fdt = NULL;
static int highbank_mem_init(void)
{
highbank_add_ddram(4089 << 20);
struct device_node *np;
int ret;
/* load by the firmware at 0x1000 */
fdt = IOMEM(FIRMWARE_DTB_BASE);
ret = of_unflatten_dtb(fdt);
if (ret) {
pr_warn("no dtb found at 0x1000 use default configuration\n");
fdt = NULL;
goto not_found;
}
np = of_find_node_by_path("/memory");
if (!np) {
pr_warn("no memory node use default configuration\n");
goto not_found;
}
ret = of_add_memory(np, true);
if (ret) {
pr_warn("memory node: probe failed use default configuration\n");
goto not_found;
}
pr_info("highbank: dtb probed memory size\n");
return 0;
not_found:
highbank_add_ddram(4089 << 20);
return 0;
}
mem_initcall(highbank_mem_init);
static int highbank_devices_init(void)
{
highbank_register_gpio(0);
highbank_register_gpio(1);
highbank_register_gpio(2);
highbank_register_gpio(3);
highbank_register_ahci();
highbank_register_xgmac(0);
highbank_register_xgmac(1);
if (!fdt) {
highbank_register_gpio(0);
highbank_register_gpio(1);
highbank_register_gpio(2);
highbank_register_gpio(3);
highbank_register_ahci();
highbank_register_xgmac(0);
highbank_register_xgmac(1);
} else {
devfs_add_partition("ram0", FIRMWARE_DTB_BASE, SZ_64K, DEVFS_PARTITION_FIXED, "dtb");
}
armlinux_set_bootparams((void *)(0x00000100));

1
arch/arm/configs/highbank_defconfig
View File

@ -37,6 +37,7 @@ CONFIG_CMD_UIMAGE=y
CONFIG_CMD_RESET=y
CONFIG_CMD_GO=y
CONFIG_CMD_OFTREE=y
CONFIG_CMD_OFTREE_PROBE=y
CONFIG_CMD_MTEST=y
CONFIG_CMD_MTEST_ALTERNATIVE=y
CONFIG_CMD_TIMEOUT=y