diff options
| author | Marek Vasut <[email protected]> | 2014-09-08 14:08:45 +0200 |
|---|---|---|
| committer | Marek Vasut <[email protected]> | 2014-10-06 17:46:49 +0200 |
| commit | e9d6a20034788258bc5008dc2665aabe9ce28b1c (patch) | |
| tree | 5f02fb8a2a83c4983a92daed5e0e3b1c4678b1e1 | |
| parent | 2110eeaf0fdf9b3b200076554d266459ca7ac26d (diff) | |
arm: socfpga: reset: Add EMAC reset functions
Add functions to reset the EMAC ethernet blocks. We cannot handle
two EMAC ethernet blocks yet, therefore the ifdefs. Once there is
hardware using both EMAC blocks, this ifdef will have to go.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Chin Liang See <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Cc: Albert Aribaud <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Wolfgang Denk <[email protected]>
Cc: Pavel Machek <[email protected]>
Acked-by: Pavel Machek <[email protected]>
| -rw-r--r-- | arch/arm/cpu/armv7/socfpga/reset_manager.c | 17 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-socfpga/reset_manager.h | 3 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/socfpga/reset_manager.c b/arch/arm/cpu/armv7/socfpga/reset_manager.c index 5d7aba467f7..badc5695820 100644 --- a/arch/arm/cpu/armv7/socfpga/reset_manager.c +++ b/arch/arm/cpu/armv7/socfpga/reset_manager.c @@ -49,3 +49,20 @@ void reset_deassert_peripherals_handoff(void) { writel(0, &reset_manager_base->per_mod_reset); } + +/* Change the reset state for EMAC 0 and EMAC 1 */ +void socfpga_emac_reset(int enable) +{ + const void *reset = &reset_manager_base->per_mod_reset; + + if (enable) { + setbits_le32(reset, 1 << RSTMGR_PERMODRST_EMAC0_LSB); + setbits_le32(reset, 1 << RSTMGR_PERMODRST_EMAC1_LSB); + } else { +#if (CONFIG_EMAC_BASE == SOCFPGA_EMAC0_ADDRESS) + clrbits_le32(reset, 1 << RSTMGR_PERMODRST_EMAC0_LSB); +#elif (CONFIG_EMAC_BASE == SOCFPGA_EMAC1_ADDRESS) + clrbits_le32(reset, 1 << RSTMGR_PERMODRST_EMAC1_LSB); +#endif + } +} diff --git a/arch/arm/include/asm/arch-socfpga/reset_manager.h b/arch/arm/include/asm/arch-socfpga/reset_manager.h index 18506e69fd1..3c5ab401e1e 100644 --- a/arch/arm/include/asm/arch-socfpga/reset_manager.h +++ b/arch/arm/include/asm/arch-socfpga/reset_manager.h @@ -10,6 +10,7 @@ void reset_cpu(ulong addr); void reset_deassert_peripherals_handoff(void); +void socfpga_emac_reset(int enable); void socfpga_watchdog_reset(void); struct socfpga_reset_manager { @@ -29,6 +30,8 @@ struct socfpga_reset_manager { #define RSTMGR_CTRL_SWWARMRSTREQ_LSB 1 #endif +#define RSTMGR_PERMODRST_EMAC0_LSB 0 +#define RSTMGR_PERMODRST_EMAC1_LSB 1 #define RSTMGR_PERMODRST_L4WD0_LSB 6 #endif /* _RESET_MANAGER_H_ */ |