diff options
Diffstat (limited to 'plat/imx/imx8qx/imx8qx_bl31_setup.c')
| -rw-r--r-- | plat/imx/imx8qx/imx8qx_bl31_setup.c | 47 |
1 files changed, 40 insertions, 7 deletions
diff --git a/plat/imx/imx8qx/imx8qx_bl31_setup.c b/plat/imx/imx8qx/imx8qx_bl31_setup.c index 58c82ce60..3ff540017 100644 --- a/plat/imx/imx8qx/imx8qx_bl31_setup.c +++ b/plat/imx/imx8qx/imx8qx_bl31_setup.c @@ -38,11 +38,43 @@ IMPORT_SYM(unsigned long, __RW_START__, BL31_RW_START); static entry_point_info_t bl32_image_ep_info; static entry_point_info_t bl33_image_ep_info; +/* Default configuration for i.MX8QM/QXP MEK */ +#if defined(IMX_USE_UART0) #define UART_PAD_CTRL (PADRING_IFMUX_EN_MASK | PADRING_GP_EN_MASK | \ (SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \ (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ (SC_PAD_28FDSOI_DSE_DV_LOW << PADRING_DSE_SHIFT) | \ (SC_PAD_28FDSOI_PS_PD << PADRING_PULL_SHIFT)) +#define IMX_RES_UART SC_R_UART_0 +#define IMX_PAD_UART_RX SC_P_UART0_RX +#define IMX_PAD_UART_TX SC_P_UART0_TX + +/* + * On Toradex Colibri i.MX8QXP UART3 on the FLEXCAN2. + * Use custom pad control for this + */ +#elif defined(IMX_USE_UART3) +/* + * FLEXCAN2_RX/TX pads are muxed to ADMA_UART3_RX/TX, + * For ref: + * 000b - ADMA_FLEXCAN2_RX + * 001b - ADMA_SAI3_RXD + * 010b - ADMA_UART3_RX + * 011b - ADMA_SAI1_RXFS + * 100b - LSIO_GPIO1_IO19 + */ +#define UART_PAD_CTRL (PADRING_IFMUX_EN_MASK | PADRING_GP_EN_MASK | \ + (SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \ + (2U << PADRING_IFMUX_SHIFT) | \ + (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \ + (SC_PAD_28FDSOI_DSE_DV_LOW << PADRING_DSE_SHIFT) | \ + (SC_PAD_28FDSOI_PS_PD << PADRING_PULL_SHIFT)) +#define IMX_RES_UART SC_R_UART_3 +#define IMX_PAD_UART_RX SC_P_FLEXCAN2_RX +#define IMX_PAD_UART_TX SC_P_FLEXCAN2_TX +#else +#error "Provide proper UART configuration in IMX_DEBUG_UART" +#endif static const mmap_region_t imx_mmap[] = { MAP_REGION_FLAT(IMX_REG_BASE, IMX_REG_SIZE, MT_DEVICE | MT_RW), @@ -74,7 +106,7 @@ static void lpuart32_serial_setbrg(unsigned int base, int baudrate) if (baudrate == 0) panic(); - sc_pm_get_clock_rate(ipc_handle, SC_R_UART_0, 2, &rate); + sc_pm_get_clock_rate(ipc_handle, IMX_RES_UART, 2, &rate); baud_diff = baudrate; osr = 0; @@ -255,20 +287,21 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, u_register_t arg2, u_register_t arg3) { #if DEBUG_CONSOLE - static console_lpuart_t console; + static console_t console; #endif if (sc_ipc_open(&ipc_handle, SC_IPC_BASE) != SC_ERR_NONE) panic(); #if DEBUG_CONSOLE_A35 - sc_pm_set_resource_power_mode(ipc_handle, SC_R_UART_0, SC_PM_PW_MODE_ON); + sc_pm_set_resource_power_mode(ipc_handle, IMX_RES_UART, + SC_PM_PW_MODE_ON); sc_pm_clock_rate_t rate = 80000000; - sc_pm_set_clock_rate(ipc_handle, SC_R_UART_0, 2, &rate); - sc_pm_clock_enable(ipc_handle, SC_R_UART_0, 2, true, false); + sc_pm_set_clock_rate(ipc_handle, IMX_RES_UART, 2, &rate); + sc_pm_clock_enable(ipc_handle, IMX_RES_UART, 2, true, false); /* Configure UART pads */ - sc_pad_set(ipc_handle, SC_P_UART0_RX, UART_PAD_CTRL); - sc_pad_set(ipc_handle, SC_P_UART0_TX, UART_PAD_CTRL); + sc_pad_set(ipc_handle, IMX_PAD_UART_RX, UART_PAD_CTRL); + sc_pad_set(ipc_handle, IMX_PAD_UART_TX, UART_PAD_CTRL); lpuart32_serial_init(IMX_BOOT_UART_BASE); #endif |