sh: Bring kgdb back from the dead.

This code has suffered quite a bit of bitrot, do some basic
tidying to get it to a reasonably functional state again.
This gets the basic support and the console working again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 0 insertions, 148 deletions

diff --git a/arch/sh/boards/se/7751/setup.c b/arch/sh/boards/se/7751/setup.c
index e3feae6ec0bf..770defed9c4a 100644
--- a/arch/sh/boards/se/7751/setup.c
+++ b/arch/sh/boards/se/7751/setup.c
@@ -14,153 +14,6 @@
 #include <asm/se7751.h>
 #include <asm/io.h>
 
-void init_7751se_IRQ(void);
-
-#ifdef CONFIG_SH_KGDB
-#include <asm/kgdb.h>
-static int kgdb_uart_setup(void);
-static struct kgdb_sermap kgdb_uart_sermap = 
-{ "ttyS", 0, kgdb_uart_setup, NULL };
-#endif
- 
-/*
- * Initialize the board
- */
-static void __init sh7751se_setup(char **cmdline_p)
-{
-        /* Call init_smsc() replacement to set up SuperIO. */
-        /* XXX: RTC setting comes here */
-#ifdef CONFIG_SH_KGDB
-        kgdb_register_sermap(&kgdb_uart_sermap);
-#endif
-}
-
-/*********************************************************************
- * Currently a hack (e.g. does not interact well w/serial.c, lots of *
- * hardcoded stuff) but may be useful if SCI/F needs debugging.      *
- * Mostly copied from x86 code (see files asm-i386/kgdb_local.h and  *
- * arch/i386/lib/kgdb_serial.c).                                     *
- *********************************************************************/
-
-#ifdef CONFIG_SH_KGDB
-#include <linux/types.h>
-#include <linux/serial.h>
-#include <linux/serialP.h>
-#include <linux/serial_reg.h>
-
-#define COM1_PORT 0x3f8  /* Base I/O address */
-#define COM1_IRQ  4      /* IRQ not used yet */
-#define COM2_PORT 0x2f8  /* Base I/O address */
-#define COM2_IRQ  3      /* IRQ not used yet */
-
-#define SB_CLOCK 1843200 /* Serial baud clock */
-#define SB_BASE (SB_CLOCK/16)
-#define SB_MCR UART_MCR_OUT2 | UART_MCR_DTR | UART_MCR_RTS
-
-struct uart_port {
-        int base;
-};
-#define UART_NPORTS 2
-struct uart_port uart_ports[] = {
-        { COM1_PORT },
-        { COM2_PORT },
-};
-struct uart_port *kgdb_uart_port;
-
-#define UART_IN(reg)    inb_p(kgdb_uart_port->base + reg)
-#define UART_OUT(reg,v) outb_p((v), kgdb_uart_port->base + reg)
-
-/* Basic read/write functions for the UART */
-#define UART_LSR_RXCERR    (UART_LSR_BI | UART_LSR_FE | UART_LSR_PE)
-static int kgdb_uart_getchar(void)
-{
-        int lsr;
-        int c = -1;
-
-        while (c == -1) {
-                lsr = UART_IN(UART_LSR);
-                if (lsr & UART_LSR_DR) 
-                        c = UART_IN(UART_RX);
-                if ((lsr & UART_LSR_RXCERR))
-                        c = -1;
-        }
-        return c;
-}
-
-static void kgdb_uart_putchar(int c)
-{
-        while ((UART_IN(UART_LSR) & UART_LSR_THRE) == 0)
-                ;
-        UART_OUT(UART_TX, c);
-}
-
-/*
- * Initialize UART to configured/requested values.
- * (But we don't interrupts yet, or interact w/serial.c)
- */
-static int kgdb_uart_setup(void)
-{
-        int port;
-        int lcr = 0;
-        int bdiv = 0;
-
-        if (kgdb_portnum >= UART_NPORTS) {
-                KGDB_PRINTK("uart port %d invalid.\n", kgdb_portnum);
-                return -1;
-        }
-
-        kgdb_uart_port = &uart_ports[kgdb_portnum];
-
-        /* Init sequence from gdb_hook_interrupt */
-        UART_IN(UART_RX);
-        UART_OUT(UART_IER, 0);
-
-        UART_IN(UART_RX);       /* Serial driver comments say */
-        UART_IN(UART_IIR);      /* this clears interrupt regs */
-        UART_IN(UART_MSR);
-
-        /* Figure basic LCR values */
-        switch (kgdb_bits) {
-        case '7':
-                lcr |= UART_LCR_WLEN7;
-                break;
-        default: case '8': 
-                lcr |= UART_LCR_WLEN8;
-                break;
-        }
-        switch (kgdb_parity) {
-        case 'O':
-                lcr |= UART_LCR_PARITY;
-                break;
-        case 'E':
-                lcr |= (UART_LCR_PARITY | UART_LCR_EPAR);
-                break;
-        default: break;
-        }
-
-        /* Figure the baud rate divisor */
-        bdiv = (SB_BASE/kgdb_baud);
-        
-        /* Set the baud rate and LCR values */
-        UART_OUT(UART_LCR, (lcr | UART_LCR_DLAB));
-        UART_OUT(UART_DLL, (bdiv & 0xff));
-        UART_OUT(UART_DLM, ((bdiv >> 8) & 0xff));
-        UART_OUT(UART_LCR, lcr);
-
-        /* Set the MCR */
-        UART_OUT(UART_MCR, SB_MCR);
-
-        /* Turn off FIFOs for now */
-        UART_OUT(UART_FCR, 0);
-
-        /* Setup complete: initialize function pointers */
-        kgdb_getchar = kgdb_uart_getchar;
-        kgdb_putchar = kgdb_uart_putchar;
-
-        return 0;
-}
-#endif /* CONFIG_SH_KGDB */
-
 static unsigned char heartbeat_bit_pos[] = { 8, 9, 10, 11, 12, 13, 14, 15 };
 
 static struct resource heartbeat_resources[] = {
@@ -197,7 +50,6 @@ __initcall(se7751_devices_setup);
  */
 struct sh_machine_vector mv_7751se __initmv = {
         .mv_name                = "7751 SolutionEngine",
-        .mv_setup               = sh7751se_setup,
         .mv_nr_irqs             = 72,
 
         .mv_inb                 = sh7751se_inb,