diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2012-01-09 16:01:00 +0000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-01-09 16:01:00 +0000 |
| commit | a07613a54d700a974f3a4a657da78ef5d097315d (patch) | |
| tree | e4bc91713e02fa6d8f08b07de53ea8f905593dfa /arch/arm/mach-ixp2000/ixdp2x01.c | |
| parent | 65db039bf7402f0a5b19cbf6dcff55ebea433b8b (diff) | |
| parent | 928a11ba36f999436915ea2b1eadf54301f93059 (diff) | |
Merge branch 'samsung/dt' into samsung/cleanup
Conflicts:
arch/arm/mach-s3c64xx/Makefile
arch/arm/mach-s5pc100/Makefile
arch/arm/mach-s5pv210/Makefile
Pull in previously resolved conflicts:
The Makefiles were reorganized in the "rmk/restart" series and modified
in the "samsung/cleanup series". This also pulls in the other conflict
resolutions from the restart series against the samsung/dt series.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-ixp2000/ixdp2x01.c')
| -rw-r--r-- | arch/arm/mach-ixp2000/ixdp2x01.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp2000/ixdp2x01.c b/arch/arm/mach-ixp2000/ixdp2x01.c index 61a28676b5b..7632beadabf 100644 --- a/arch/arm/mach-ixp2000/ixdp2x01.c +++ b/arch/arm/mach-ixp2000/ixdp2x01.c @@ -413,6 +413,35 @@ static void __init ixdp2x01_init_machine(void) ixdp2x01_uart_init(); } +static void ixdp2401_restart(char mode, const char *cmd) +{ + /* + * Reset flash banking register so that we are pointing at + * RedBoot bank. + */ + ixp2000_reg_write(IXDP2X01_CPLD_FLASH_REG, + ((0 >> IXDP2X01_FLASH_WINDOW_BITS) + | IXDP2X01_CPLD_FLASH_INTERN)); + ixp2000_reg_wrb(IXDP2X01_CPLD_RESET_REG, 0xffffffff); + + ixp2000_restart(mode, cmd); +} + +static void ixdp280x_restart(char mode, const char *cmd) +{ + /* + * On IXDP2801 we need to write this magic sequence to the CPLD + * to cause a complete reset of the CPU and all external devices + * and move the flash bank register back to 0. + */ + unsigned long reset_reg = *IXDP2X01_CPLD_RESET_REG; + + reset_reg = 0x55AA0000 | (reset_reg & 0x0000FFFF); + ixp2000_reg_write(IXDP2X01_CPLD_RESET_REG, reset_reg); + ixp2000_reg_wrb(IXDP2X01_CPLD_RESET_REG, 0x80000000); + + ixp2000_restart(mode, cmd); +} #ifdef CONFIG_ARCH_IXDP2401 MACHINE_START(IXDP2401, "Intel IXDP2401 Development Platform") @@ -422,6 +451,7 @@ MACHINE_START(IXDP2401, "Intel IXDP2401 Development Platform") .init_irq = ixdp2x01_init_irq, .timer = &ixdp2x01_timer, .init_machine = ixdp2x01_init_machine, + .restart = ixdp2401_restart, MACHINE_END #endif @@ -433,6 +463,7 @@ MACHINE_START(IXDP2801, "Intel IXDP2801 Development Platform") .init_irq = ixdp2x01_init_irq, .timer = &ixdp2x01_timer, .init_machine = ixdp2x01_init_machine, + .restart = ixdp280x_restart, MACHINE_END /* @@ -446,6 +477,7 @@ MACHINE_START(IXDP28X5, "Intel IXDP2805/2855 Development Platform") .init_irq = ixdp2x01_init_irq, .timer = &ixdp2x01_timer, .init_machine = ixdp2x01_init_machine, + .restart = ixdp280x_restart, MACHINE_END #endif |