#include <linux/serial_reg.h>
#include <linux/spinlock.h>
#include <linux/module.h>
+#include <linux/string.h>
#include <asm/io.h>
#include <asm/bootinfo.h>
#include <asm/mips-boards/prom.h>
+#include <asm/gdb-stub.h>
#include <asm/ar7/ar7.h>
+#include <asm/ar7/prom.h>
#define MAX_ENTRY 80
char *value;
};
-struct psp_chip_map {
- u16 chip;
- char *names[50];
-};
-
-/* I hate this. No. *I* *HATE* *THIS* */
-static __initdata struct psp_chip_map psp_chip_map[] = {
- {
- .chip = AR7_CHIP_7100,
- .names = {
- "dummy", "cpufrequency", "memsize",
- "flashsize", "modetty0", "modetty1", "prompt",
- "bootcfg", "maca", "macb", "usb_rndis_mac",
- "macap", "my_ipaddress", "server_ipaddress",
- "bline_maca", "bline_macb", "bline_rndis",
- "bline_atm", "usb_pid", "usb_vid",
- "usb_eppolli", "gateway_ipaddress",
- "subnet_mask", "usb_serial", "usb_board_mac",
- "remote_user", "remote_pass", "remote_dir",
- "sysfrequency", "link_timeout", "mac_port",
- "path", "hostname", "tftpcfg", "buildops",
- "tftp_fo_fname", "tftp_fo_ports",
- "console_state", "mipsfrequency",
- },
- },
- {
- .chip = AR7_CHIP_7200,
- .names = {
- "dummy", "cpufrequency", "memsize",
- "flashsize", "modetty0", "modetty1", "prompt",
- "bootcfg", "maca", "macb", "usb_rndis_mac",
- "macap", "my_ipaddress", "server_ipaddress",
- "bline_maca", "bline_macb", "bline_rndis",
- "bline_atm", "usb_pid", "usb_vid",
- "usb_eppolli", "gateway_ipaddress",
- "subnet_mask", "usb_serial", "usb_board_mac",
- "remote_user", "remote_pass", "remote_dir",
- "sysfrequency", "link_timeout", "mac_port",
- "path", "hostname", "tftpcfg", "buildops",
- "tftp_fo_fname", "tftp_fo_ports",
- "console_state", "mipsfrequency",
- },
- },
- {
- .chip = AR7_CHIP_7300,
- .names = {
- "dummy", "cpufrequency", "memsize",
- "flashsize", "modetty0", "modetty1", "prompt",
- "bootcfg", "maca", "macb", "usb_rndis_mac",
- "macap", "my_ipaddress", "server_ipaddress",
- "bline_maca", "bline_macb", "bline_rndis",
- "bline_atm", "usb_pid", "usb_vid",
- "usb_eppolli", "gateway_ipaddress",
- "subnet_mask", "usb_serial", "usb_board_mac",
- "remote_user", "remote_pass", "remote_dir",
- "sysfrequency", "link_timeout", "mac_port",
- "path", "hostname", "tftpcfg", "buildops",
- "tftp_fo_fname", "tftp_fo_ports",
- "console_state", "mipsfrequency",
- },
- },
- {
- .chip = 0x0,
- },
-};
-
static struct env_var adam2_env[MAX_ENTRY] = { { 0, }, };
-char * __init prom_getenv(char *name)
+char * prom_getenv(char *name)
{
int i;
for (i = 0; (i < MAX_ENTRY) && adam2_env[i].name; i++)
static __initdata char psp_env_version[] = "TIENV0.8";
-struct psp_env_var {
- unsigned char num;
- unsigned char ctrl;
- unsigned short csum;
- unsigned char len;
- unsigned char data[11];
+struct psp_env_chunk {
+ u8 num;
+ u8 ctrl;
+ u16 csum;
+ u8 len;
+ char data[11];
+} __attribute__ ((packed));
+
+struct psp_var_map_entry {
+ u8 num;
+ char *value;
+};
+
+static struct psp_var_map_entry psp_var_map[] = {
+ { 1, "cpufrequency" },
+ { 2, "memsize" },
+ { 3, "flashsize" },
+ { 4, "modetty0" },
+ { 5, "modetty1" },
+ { 8, "maca" },
+ { 9, "macb" },
+ { 28, "sysfrequency" },
+ { 38, "mipsfrequency" },
};
-static char psp_env_data[2048] = { 0, };
+/*
+
+Well-known variable (num is looked up in table above for matching variable name)
+Example: cpufrequency=211968000
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+| 01 |CTRL|CHECKSUM | 01 | _2 | _1 | _1 | _9 | _6 | _8 | _0 | _0 | _0 | \0 | FF |
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+
+Name=Value pair in a single chunk
+Example: NAME=VALUE
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+| 00 |CTRL|CHECKSUM | 01 | _N | _A | _M | _E | _0 | _V | _A | _L | _U | _E | \0 |
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+
+Name=Value pair in 2 chunks (len is the number of chunks)
+Example: bootloaderVersion=1.3.7.15
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+| 00 |CTRL|CHECKSUM | 02 | _b | _o | _o | _t | _l | _o | _a | _d | _e | _r | _V |
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+| _e | _r | _s | _i | _o | _n | \0 | _1 | _. | _3 | _. | _7 | _. | _1 | _5 | \0 |
++----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
+
+Data is padded with 0xFF
+
+*/
+
+#define PSP_ENV_SIZE 4096
+
+static char psp_env_data[PSP_ENV_SIZE] = { 0, };
+
+static char * __init lookup_psp_var_map(u8 num)
+{
+ int i;
+
+ for (i = 0; i < sizeof(psp_var_map); i++)
+ if (psp_var_map[i].num == num)
+ return psp_var_map[i].value;
+
+ return NULL;
+}
static void __init add_adam2_var(char *name, char *value)
{
}
}
-static int __init parse_psp_env(void *start)
+static int __init parse_psp_env(void *psp_env_base)
{
- int i, j;
- u16 chip;
- struct psp_chip_map *map;
- char *src, *dest, *name, *value;
- struct psp_env_var *vars = start;
-
- chip = ar7_chip_id();
- for (map = psp_chip_map; map->chip; map++)
- if (map->chip == chip)
- break;
+ int i, n;
+ char *name, *value;
+ struct psp_env_chunk *chunks = (struct psp_env_chunk *)psp_env_data;
- if (!map->chip)
- return -EINVAL;
+ memcpy_fromio(chunks, psp_env_base, PSP_ENV_SIZE);
i = 1;
- j = 0;
- dest = psp_env_data;
- while (vars[i].num < 0xff) {
- src = vars[i].data;
- if (vars[i].num) {
- strcpy(dest, map->names[vars[i].num]);
- name = dest;
+ n = PSP_ENV_SIZE / sizeof(struct psp_env_chunk);
+ while (i < n) {
+ if ((chunks[i].num == 0xff) || ((i + chunks[i].len) > n))
+ break;
+ value = chunks[i].data;
+ if (chunks[i].num) {
+ name = lookup_psp_var_map(chunks[i].num);
} else {
- strcpy(dest, src);
- name = dest;
- src += strlen(src) + 1;
- }
- dest += strlen(dest) + 1;
- strcpy(dest, src);
- value = dest;
- dest += strlen(dest) + 1;
- add_adam2_var(name, value);
- i += vars[i].len;
+ name = value;
+ value += strlen(name) + 1;
+ }
+ if (name)
+ add_adam2_var(name, value);
+ i += chunks[i].len;
}
return 0;
}
}
}
+static void __init console_config(void)
+{
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+ char console_string[40];
+ int baud = 0;
+ char parity = '\0', bits = '\0', flow = '\0';
+ char *s, *p;
+
+ if (strstr(prom_getcmdline(), "console="))
+ return;
+
+#ifdef CONFIG_KGDB
+ if (!strstr(prom_getcmdline(), "nokgdb"))
+ {
+ strcat(prom_getcmdline(), " console=kgdb");
+ kgdb_enabled = 1;
+ return;
+ }
+#endif
+
+ if ((s = prom_getenv("modetty0"))) {
+ baud = simple_strtoul(s, &p, 10);
+ s = p;
+ if (*s == ',') s++;
+ if (*s) parity = *s++;
+ if (*s == ',') s++;
+ if (*s) bits = *s++;
+ if (*s == ',') s++;
+ if (*s == 'h') flow = 'r';
+ }
+
+ if (baud == 0)
+ baud = 38400;
+ if (parity != 'n' && parity != 'o' && parity != 'e')
+ parity = 'n';
+ if (bits != '7' && bits != '8')
+ bits = '8';
+ if (flow == '\0')
+ flow = 'r';
+
+ sprintf(console_string, " console=ttyS0,%d%c%c%c", baud,
+ parity, bits, flow);
+ strcat(prom_getcmdline(), console_string);
+#endif
+}
+
void __init prom_init(void)
{
- prom_printf("\nLINUX running...\n");
ar7_init_cmdline(fw_arg0, (char **)fw_arg1);
ar7_init_env((struct env_var *)fw_arg2);
+ console_config();
}
#define PORT(offset) (KSEG1ADDR(AR7_REGS_UART0 + (offset * 4)))
return 1;
}
+// from adm5120/prom.c
+void prom_printf(char *fmt, ...)
+{
+ va_list args;
+ int l;
+ char *p, *buf_end;
+ char buf[1024];
+
+ va_start(args, fmt);
+ l = vsprintf(buf, fmt, args); /* hopefully i < sizeof(buf) */
+ va_end(args);
+
+ buf_end = buf + l;
+
+ for (p = buf; p < buf_end; p++) {
+ /* Crude cr/nl handling is better than none */
+ if (*p == '\n')
+ prom_putchar('\r');
+ prom_putchar(*p);
+ }
+}
+
+#ifdef CONFIG_KGDB
+int putDebugChar(char c)
+{
+ return prom_putchar(c);
+}
+
+char getDebugChar(void)
+{
+ return prom_getchar();
+}
+#endif
+
EXPORT_SYMBOL(prom_getenv);
projects / openwrt.git / blobdiff