arm: socfpga: scan: Zap redundant params in scan_mgr_io_scan_chain_prg()

It is sufficient to pass in the scan chain ID into the function to determine
the remaining two parameters, so drop those params and determine them locally
in the function. The big-ish switch in the function is temporary and will be
replaced by a proper function call in subsequent patch.

Signed-off-by: Marek Vasut <marex@denx.de>

diff --git a/arch/arm/mach-socfpga/scan_manager.c b/arch/arm/mach-socfpga/scan_manager.c
index ab7aaec..135f9f3 100644 (file)
--- a/arch/arm/mach-socfpga/scan_manager.c
+++ b/arch/arm/mach-socfpga/scan_manager.c
@@ -41,12 +41,8 @@ static inline uint32_t scan_chain_engine_is_idle(uint32_t max_iter)
 /**
  * scan_mgr_io_scan_chain_prg() - Program HPS IO Scan Chain
  * @io_scan_chain_id:          IO scan chain ID
- * @io_scan_chain_len_in_bits: IO scan chain length in bits
- * @iocsr_scan_chain:          IO scan chain table
  */
-static int scan_mgr_io_scan_chain_prg(const unsigned int io_scan_chain_id,
-                                     uint32_t io_scan_chain_len_in_bits,
-                                     const uint32_t *iocsr_scan_chain)
+static int scan_mgr_io_scan_chain_prg(const unsigned int io_scan_chain_id)
 {
        uint16_t tdi_tdo_header;
        uint32_t io_program_iter;
@@ -54,6 +50,27 @@ static int scan_mgr_io_scan_chain_prg(const unsigned int io_scan_chain_id,
        uint32_t residual;
        uint32_t i;
        uint32_t index = 0;
+       uint32_t io_scan_chain_len_in_bits,
+       const uint32_t *iocsr_scan_chain;
+
+       switch (io_scan_chain_id) {
+       case 0:
+               io_scan_chain_len_in_bits = CONFIG_HPS_IOCSR_SCANCHAIN0_LENGTH;
+               iocsr_scan_chain = iocsr_scan_chain0_table;
+               break;
+       case 1:
+               io_scan_chain_len_in_bits = CONFIG_HPS_IOCSR_SCANCHAIN1_LENGTH;
+               iocsr_scan_chain = iocsr_scan_chain1_table;
+               break;
+       case 2:
+               io_scan_chain_len_in_bits = CONFIG_HPS_IOCSR_SCANCHAIN2_LENGTH;
+               iocsr_scan_chain = iocsr_scan_chain2_table;
+               break;
+       case 3:
+               io_scan_chain_len_in_bits = CONFIG_HPS_IOCSR_SCANCHAIN3_LENGTH;
+               iocsr_scan_chain = iocsr_scan_chain3_table;
+               break;
+       }
 
        /*
         * De-assert reinit if the IO scan chain is intended for HIO. In
@@ -201,13 +218,9 @@ int scan_mgr_configure_iocsr(void)
        int status = 0;
 
        /* configure the IOCSR through scan chain */
-       status |= scan_mgr_io_scan_chain_prg(0,
-               CONFIG_HPS_IOCSR_SCANCHAIN0_LENGTH, iocsr_scan_chain0_table);
-       status |= scan_mgr_io_scan_chain_prg(1,
-               CONFIG_HPS_IOCSR_SCANCHAIN1_LENGTH, iocsr_scan_chain1_table);
-       status |= scan_mgr_io_scan_chain_prg(2,
-               CONFIG_HPS_IOCSR_SCANCHAIN2_LENGTH, iocsr_scan_chain2_table);
-       status |= scan_mgr_io_scan_chain_prg(3,
-               CONFIG_HPS_IOCSR_SCANCHAIN3_LENGTH, iocsr_scan_chain3_table);
+       status |= scan_mgr_io_scan_chain_prg(0);
+       status |= scan_mgr_io_scan_chain_prg(1);
+       status |= scan_mgr_io_scan_chain_prg(2);
+       status |= scan_mgr_io_scan_chain_prg(3);
        return status;
 }