24 #define VGABASE		(__ISA_IO_base + 0xb8000)
34 	while ((c = *str++) != '\0' && n-- > 0) {  in early_vga_write()
37 			for (k = 1, j = 0; k < max_ypos; k++, j++) {  in early_vga_write()
38 				for (i = 0; i < max_xpos; i++) {  in early_vga_write()
43 			for (i = 0; i < max_xpos; i++)  in early_vga_write()
44 				writew(0x720, VGABASE + 2*(max_xpos*j + i));  in early_vga_write()
49 			if (current_xpos > 0)  in early_vga_write()
52 			current_xpos = 0;  in early_vga_write()
56 			current_xpos = 0;  in early_vga_write()
59 			writew(((0x7 << 8) | (unsigned short) c),  in early_vga_write()
63 				current_xpos = 0;  in early_vga_write()
79 static unsigned long early_serial_base = 0x3f8;  /* ttyS0 */
81 #define XMTRDY          0x20
83 #define DLAB		0x80
85 #define TXR             0       /*  Transmit register (WRITE) */
86 #define RXR             0       /*  Receive register  (READ)  */
94 #define DLL             0       /*  Divisor Latch Low         */
112 	unsigned timeout = 0xffff;  in early_serial_putc()
114 	while ((serial_in(early_serial_base, LSR) & XMTRDY) == 0 && --timeout)  in early_serial_putc()
117 	return timeout ? 0 : -1;  in early_serial_putc()
122 	while (*s && n-- > 0) {  in early_serial_write()
134 	serial_out(early_serial_base, LCR, 0x3);	/* 8n1 */  in early_serial_hw_init()
135 	serial_out(early_serial_base, IER, 0);	/* no interrupt */  in early_serial_hw_init()
136 	serial_out(early_serial_base, FCR, 0);	/* no fifo */  in early_serial_hw_init()
137 	serial_out(early_serial_base, MCR, 0x3);	/* DTR + RTS */  in early_serial_hw_init()
141 	serial_out(early_serial_base, DLL, divisor & 0xff);  in early_serial_hw_init()
142 	serial_out(early_serial_base, DLH, (divisor >> 8) & 0xff);  in early_serial_hw_init()
159 		if (!strncmp(s, "0x", 2)) {  in early_serial_init()
162 			static const int __initconst bases[] = { 0x3f8, 0x2f8 };  in early_serial_init()
168 				port = 0;  in early_serial_init()
177 		baud = simple_strtoull(s, &e, 0);  in early_serial_init()
179 		if (baud == 0 || s == e)  in early_serial_init()
225 	int force = 0;  in early_pci_serial_init()
230 	if (*s == 0)  in early_pci_serial_init()
271 	    (((classcode >> 8) & 0xff) != PCI_SERIAL_16550_COMPATIBLE)) {  in early_pci_serial_init()
292 			(unsigned long)early_ioremap(bar0 & PCI_BASE_ADDRESS_MEM_MASK, 0x10);  in early_pci_serial_init()
301 		if (strcmp(s, "nocfg") == 0)  in early_pci_serial_init()
308 		if (kstrtoul(s, 0, &baud) < 0 || baud == 0)  in early_pci_serial_init()
347 		return 0;  in setup_early_printk()
350 		return 0;  in setup_early_printk()
354 	while (*buf != '\0') {  in setup_early_printk()
395 	return 0;  in setup_early_printk()