diff options
| -rw-r--r-- | README | 9 | ||||
| -rw-r--r-- | common/cmd_ide.c | 8 | ||||
| -rw-r--r-- | cpu/mpc5xxx/cpu.c | 20 | ||||
| -rw-r--r-- | include/configs/manroland/mpc5200-common.h | 1 | ||||
| -rw-r--r-- | include/ide.h | 3 |
5 files changed, 41 insertions, 0 deletions
@@ -388,6 +388,15 @@ The following options need to be configured: This define fills in the correct boot CPU in the boot param header, the default value is zero if undefined. + CONFIG_OF_IDE_FIXUP + + U-Boot can detect if an IDE device is present or not. + If not, and this new config option is activated, U-Boot + removes the ATA node from the DTS before booting Linux, + so the Linux IDE driver does not probe the device and + crash. This is needed for buggy hardware (uc101) where + no pull down resistor is connected to the signal IDE5V_DD7. + - vxWorks boot parameters: bootvx constructs a valid bootline using the following diff --git a/common/cmd_ide.c b/common/cmd_ide.c index 4d7a0ac..ec9a1df 100644 --- a/common/cmd_ide.c +++ b/common/cmd_ide.c @@ -1624,6 +1624,14 @@ static void ide_led (uchar led, uchar status) #endif /* CONFIG_IDE_LED */ +#if defined(CONFIG_OF_IDE_FIXUP) +int ide_device_present(int dev) +{ + if (dev >= CONFIG_SYS_IDE_MAXBUS) + return 0; + return (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN ? 0 : 1); +} +#endif /* ------------------------------------------------------------------------- */ #ifdef CONFIG_ATAPI diff --git a/cpu/mpc5xxx/cpu.c b/cpu/mpc5xxx/cpu.c index f6258c7..efa64c7 100644 --- a/cpu/mpc5xxx/cpu.c +++ b/cpu/mpc5xxx/cpu.c @@ -40,6 +40,10 @@ #include <fdt_support.h> #endif +#if defined(CONFIG_OF_IDE_FIXUP) +#include <ide.h> +#endif + DECLARE_GLOBAL_DATA_PTR; int checkcpu (void) @@ -137,6 +141,22 @@ void ft_cpu_setup(void *blob, bd_t *bd) do_fixup_by_path(blob, eth_path, "mac-address", enetaddr, 6, 0); do_fixup_by_path(blob, eth_path, "local-mac-address", enetaddr, 6, 0); #endif +#if defined(CONFIG_OF_IDE_FIXUP) + if (!ide_device_present(0)) { + /* NO CF card detected -> delete ata node in DTS */ + int nodeoffset = 0; + char nodename[] = "/soc5200@f0000000/ata@3a00"; + + nodeoffset = fdt_path_offset(blob, nodename); + if (nodeoffset >= 0) { + fdt_del_node(blob, nodeoffset); + } else { + printf("%s: cannot find %s node err:%s\n", + __func__, nodename, fdt_strerror(nodeoffset)); + } + } + +#endif } #endif diff --git a/include/configs/manroland/mpc5200-common.h b/include/configs/manroland/mpc5200-common.h index 2f092b1..b29ef9b 100644 --- a/include/configs/manroland/mpc5200-common.h +++ b/include/configs/manroland/mpc5200-common.h @@ -225,5 +225,6 @@ #define OF_SOC "soc5200@f0000000" #define OF_TBCLK (bd->bi_busfreq / 4) #define OF_STDOUT_PATH "/soc5200@f0000000/serial@2000" +#define CONFIG_OF_IDE_FIXUP #endif /* __MANROLAND_MPC52XX__COMMON_H */ diff --git a/include/ide.h b/include/ide.h index ddb9579..6a1b7ae 100644 --- a/include/ide.h +++ b/include/ide.h @@ -54,4 +54,7 @@ void ide_init(void); ulong ide_read(int device, lbaint_t blknr, ulong blkcnt, void *buffer); ulong ide_write(int device, lbaint_t blknr, ulong blkcnt, void *buffer); +#if defined(CONFIG_OF_IDE_FIXUP) +int ide_device_present(int dev); +#endif #endif /* _IDE_H */ |