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Diffstat (limited to 'c/src/lib/libbsp/arm/tms570/hwinit/tms570_selftest_par_can.c')
-rw-r--r-- | c/src/lib/libbsp/arm/tms570/hwinit/tms570_selftest_par_can.c | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/c/src/lib/libbsp/arm/tms570/hwinit/tms570_selftest_par_can.c b/c/src/lib/libbsp/arm/tms570/hwinit/tms570_selftest_par_can.c deleted file mode 100644 index 41501c8e27..0000000000 --- a/c/src/lib/libbsp/arm/tms570/hwinit/tms570_selftest_par_can.c +++ /dev/null @@ -1,93 +0,0 @@ -/** - * @file tms570_selftest_par_can.c - * - * @ingroup tms570 - * - * @brief Test CAN module parity based protection logic to work. - */ -/* - * Copyright (c) 2016 Pavel Pisa <pisa@cmp.felk.cvut.cz> - * - * Czech Technical University in Prague - * Zikova 1903/4 - * 166 36 Praha 6 - * Czech Republic - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - * - * Algorithms are based on Ti manuals and Ti HalCoGen generated - * code. - */ - -#include <stdint.h> -#include <stddef.h> -#include <bsp/tms570.h> -#include "tms570_selftest.h" -#include "tms570_selftest_parity.h" - -/** - * @brief run test to check that parity protection works for CAN modules RAM - * - * @param[in] desc module registers addresses end ESM channels descriptor - * - * @return Void, in the case of error invokes bsp_selftest_fail_notification() - * - * The descriptor provides address of the module registers and address - * of internal RAM memory and corresponding parity area test access window. - */ -void tms570_selftest_par_check_can( const tms570_selftest_par_desc_t *desc ) -{ - volatile uint32_t test_read_data; - volatile tms570_dcan_t *can_regs = (volatile tms570_dcan_t *) desc->fnc_data; - uint32_t canctl_bak = can_regs->CTL; - uint32_t canctl_pmd; - int perr; - - /* Set TEST mode and enable parity checking */ - /* Disable parity, init mode, TEST mode */ - canctl_pmd = TMS570_DCAN_CTL_PMD_SET( 0, 0x5 ); - can_regs->CTL = canctl_pmd | TMS570_DCAN_CTL_Test | TMS570_DCAN_CTL_Init; - - /* Enable RAM Direct Access mode */ - can_regs->TEST = TMS570_DCAN_TEST_RDA; - - /* flip parity bit */ - *desc->par_loc ^= desc->par_xor; - - /* Disable TEST mode */ - canctl_pmd = TMS570_DCAN_CTL_PMD_SET( 0, 0xA ); - can_regs->CTL = canctl_pmd | TMS570_DCAN_CTL_Test; - - /* read to cause parity error */ - test_read_data = *desc->ram_loc; - (void) test_read_data; - - /* check if ESM channel is flagged */ - perr = tms570_esm_channel_sr_get( desc->esm_prim_grp, desc->esm_prim_chan ); - - if ( !perr ) { - /* RAM parity error was not flagged to ESM. */ - bsp_selftest_fail_notification( desc->fail_code ); - } else { - /* clear ESM flag */ - tms570_esm_channel_sr_clear( desc->esm_prim_grp, desc->esm_prim_chan ); - - /* Set TEST mode and enable parity checking */ - canctl_pmd = TMS570_DCAN_CTL_PMD_SET( 0, 0x5 ); - can_regs->CTL = canctl_pmd | TMS570_DCAN_CTL_Test | TMS570_DCAN_CTL_Init; - - /* Revert back to correct data by flipping parity location */ - *desc->par_loc ^= desc->par_xor; - } - - /* Disable RAM Direct Access mode */ - can_regs->TEST = 0x00000000U; - - /* Restore CTL register */ - can_regs->CTL = canctl_bak; - - /* Read Error and Status register to clear Parity Error bit */ - test_read_data = can_regs->ES; -} |