[U-Boot] [PATCH v2 16/20] drivers: fpga: Add compile switch for Gen5 only registers

Ley Foon Tan lftan.linux at gmail.com
Wed Mar 22 08:30:50 UTC 2017


On Fri, Mar 10, 2017 at 9:53 AM, Marek Vasut <marex at denx.de> wrote:
> On 03/09/2017 01:26 AM, Ley Foon Tan wrote:
>> These registers only available for Gen5 device, excludes them
>
> exclude
Okay.
>
>> if for Arria 10 build.
>
> s/if for/from/
Okay.

>
>> Signed-off-by: Tien Fong Chee <tien.fong.chee at intel.com>
>> Signed-off-by: Ley Foon Tan <ley.foon.tan at intel.com>
>> ---
>>  drivers/fpga/socfpga.c | 6 ++++++
>>  1 file changed, 6 insertions(+)
>>
>> diff --git a/drivers/fpga/socfpga.c b/drivers/fpga/socfpga.c
>> index f1b2f2c..3751574 100644
>> --- a/drivers/fpga/socfpga.c
>> +++ b/drivers/fpga/socfpga.c
>> @@ -19,8 +19,10 @@ DECLARE_GLOBAL_DATA_PTR;
>>
>>  static struct socfpga_fpga_manager *fpgamgr_regs =
>>       (struct socfpga_fpga_manager *)SOCFPGA_FPGAMGRREGS_ADDRESS;
>> +#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
>>  static struct socfpga_system_manager *sysmgr_regs =
>>       (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
>> +#endif
>>
>>  /* Set CD ratio */
>>  static void fpgamgr_set_cd_ratio(unsigned long ratio)
>> @@ -268,8 +270,10 @@ int socfpga_load(Altera_desc *desc, const void *rbf_data, size_t rbf_size)
>>
>>       /* Prior programming the FPGA, all bridges need to be shut off */
>>
>> +#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
>>       /* Disable all signals from hps peripheral controller to fpga */
>>       writel(0, &sysmgr_regs->fpgaintfgrp_module);
>> +#endif
>>
>>       /* Disable all signals from FPGA to HPS SDRAM */
>>  #define SDR_CTRLGRP_FPGAPORTRST_ADDRESS      0x5080
>> @@ -278,8 +282,10 @@ int socfpga_load(Altera_desc *desc, const void *rbf_data, size_t rbf_size)
>>       /* Disable all axi bridge (hps2fpga, lwhps2fpga & fpga2hps) */
>>       socfpga_bridges_reset(1);
>>
>> +#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
>>       /* Unmap the bridges from NIC-301 */
>>       writel(0x1, SOCFPGA_L3REGS_ADDRESS);
>> +#endif
>>
>>       /* Initialize the FPGA Manager */
>>       status = fpgamgr_program_init();
>>
Regards
Ley Foon


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