This function will be needed by the upcoming Designware master SPI driver.
Signed-off-by: Stefan Roese sr@denx.de Cc: Chin Liang See clsee@altera.com Cc: Dinh Nguyen dinguyen@altera.com Cc: Vince Bridgers vbridger@altera.com Cc: Marek Vasut marex@denx.de Cc: Pavel Machek pavel@denx.de --- arch/arm/cpu/armv7/socfpga/clock_manager.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/arch/arm/cpu/armv7/socfpga/clock_manager.c b/arch/arm/cpu/armv7/socfpga/clock_manager.c index d869f47..fa3b93a 100644 --- a/arch/arm/cpu/armv7/socfpga/clock_manager.c +++ b/arch/arm/cpu/armv7/socfpga/clock_manager.c @@ -507,6 +507,19 @@ unsigned int cm_get_qspi_controller_clk_hz(void) return clock; }
+unsigned int cm_get_spi_controller_clk_hz(void) +{ + uint32_t reg, clock = 0; + + clock = cm_get_per_vco_clk_hz(); + + /* get the clock prior L4 SP divider (periph_base_clk) */ + reg = readl(&clock_manager_base->per_pll.perbaseclk); + clock /= (reg + 1); + + return clock; +} + static void cm_print_clock_quick_summary(void) { printf("MPU %10ld kHz\n", cm_get_mpu_clk_hz() / 1000); @@ -518,6 +531,7 @@ static void cm_print_clock_quick_summary(void) printf("MMC %8d kHz\n", cm_get_mmc_controller_clk_hz() / 1000); printf("QSPI %8d kHz\n", cm_get_qspi_controller_clk_hz() / 1000); printf("UART %8d kHz\n", cm_get_l4_sp_clk_hz() / 1000); + printf("SPI %8d kHz\n", cm_get_spi_controller_clk_hz() / 1000); }
int set_cpu_clk_info(void)