diff options
Diffstat (limited to 'include/configs/mcc200.h')
| -rw-r--r-- | include/configs/mcc200.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/configs/mcc200.h b/include/configs/mcc200.h index d8d63a1..ce33b85 100644 --- a/include/configs/mcc200.h +++ b/include/configs/mcc200.h @@ -47,8 +47,22 @@ /* * Serial console configuration + * + * To select console on the one of 8 external UARTs, + * define CONFIG_QUART_CONSOLE as 1, 2, 3, or 4 for the first Quad UART, + * or as 5, 6, 7, or 8 for the second Quad UART. + * + * CONFIG_PSC_CONSOLE must be undefined in this case. + */ +/* #define CONFIG_QUART_CONSOLE 1 */ /* console is on UART1 of QUART1 */ +/* + * To select console on PSC1, define CONFIG_PSC_CONSOLE as 1 + * and undefine CONFIG_QUART_CONSOLE. */ #define CONFIG_PSC_CONSOLE 1 /* console is on PSC1 */ +#if defined(CONFIG_QUART_CONSOLE) && defined(CONFIG_PSC_CONSOLE) +#error "Select only one console device!" +#endif #define CONFIG_BAUDRATE 115200 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, 230400 } @@ -256,11 +270,59 @@ #define CFG_CS2_SIZE 0x00001000 #define CFG_CS2_CFG 0x1d300 +/* Second Quad UART @0x80010000 */ +#define CFG_CS1_START 0x80010000 +#define CFG_CS1_SIZE 0x00001000 +#define CFG_CS1_CFG 0x1d300 + +/* + * Select one of quarts as a default + * console. If undefined - PSC console + * wil be default + */ #define CFG_CS_BURST 0x00000000 #define CFG_CS_DEADCYCLE 0x33333333 #define CFG_RESET_ADDRESS 0xff000000 +/* + * QUART Expanders support + */ +#if defined(CONFIG_QUART_CONSOLE) +/* + * We'll use NS16550 chip routines, + */ +#define CFG_NS16550 1 +#define CFG_NS16550_SERIAL 1 +#define CONFIG_CONS_INDEX 1 +/* + * To achieve necessary offset on SC16C554 + * A0-A2 (register select) pins with NS16550 + * functions (in struct NS16550), REG_SIZE + * should be 4, because A0-A2 pins are connected + * to DA2-DA4 address bus lines. + */ +#define CFG_NS16550_REG_SIZE 4 +/* + * LocalPlus Bus already inited in cpu_init_f(), + * so can work with QUART's chip selects. + * One of four SC16C554 UARTs is selected with + * A3-A4 (DA5-DA6) lines. + */ +#if (CONFIG_QUART_CONSOLE > 0) && (CONFIG_QUART_CONSOLE < 5) +#define CFG_NS16550_COM1 (CFG_CS2_START | (CONFIG_QUART_CONSOLE - 1)<<5) +#elif (CONFIG_QUART_CONSOLE > 4) && (CONFIG_QUART_CONSOLE < 9) +#define CFG_NS16550_COM1 (CFG_CS1_START | (CONFIG_QUART_CONSOLE - 5)<<5) +#elif +#error "Wrong QUART expander number." +#endif + +/* + * SC16C554 chip's external crystal oscillator frequency + * is 7.3728 MHz + */ +#define CFG_NS16550_CLK 7372800 +#endif /* CONFIG_QUART_CONSOLE */ /*----------------------------------------------------------------------- * USB stuff *----------------------------------------------------------------------- |