diff options
Diffstat (limited to 'arch/cris/arch-v32/boot')
| -rw-r--r-- | arch/cris/arch-v32/boot/compressed/misc.c | 72 |
1 files changed, 53 insertions, 19 deletions
diff --git a/arch/cris/arch-v32/boot/compressed/misc.c b/arch/cris/arch-v32/boot/compressed/misc.c index 0169ba1ca9c9..55b2695c5d70 100644 --- a/arch/cris/arch-v32/boot/compressed/misc.c +++ b/arch/cris/arch-v32/boot/compressed/misc.c @@ -1,8 +1,6 @@ /* * misc.c * - * $Id: misc.c,v 1.8 2005/04/24 18:34:29 starvik Exp $ - * * This is a collection of several routines from gzip-1.0.3 * adapted for Linux. * @@ -22,9 +20,13 @@ #include <linux/types.h> -#include <asm/arch/hwregs/reg_rdwr.h> -#include <asm/arch/hwregs/reg_map.h> -#include <asm/arch/hwregs/ser_defs.h> +#include <hwregs/reg_rdwr.h> +#include <hwregs/reg_map.h> +#include <hwregs/ser_defs.h> +#include <hwregs/pinmux_defs.h> +#ifdef CONFIG_CRIS_MACH_ARTPEC3 +#include <hwregs/clkgen_defs.h> +#endif /* * gzip declarations @@ -85,7 +87,6 @@ static unsigned outcnt = 0; /* bytes in output buffer */ # define Tracecv(c,x) #endif -static int fill_inbuf(void); static void flush_window(void); static void error(char *m); static void gzip_mark(void **); @@ -186,6 +187,8 @@ memset(void* s, int c, size_t n) char *ss = (char*)s; for (i=0;i<n;i++) ss[i] = c; + + return s; } void* @@ -196,6 +199,8 @@ memcpy(void* __dest, __const void* __src, char *d = (char *)__dest, *s = (char *)__src; for (i=0;i<__n;i++) d[i] = s[i]; + + return __dest; } /* =========================================================================== @@ -225,15 +230,15 @@ flush_window() static void error(char *x) { - puts("\n\n"); + puts("\r\n\n"); puts(x); - puts("\n\n -- System halted\n"); + puts("\r\n\n -- System halted\n"); while(1); /* Halt */ } void -setup_normal_output_buffer() +setup_normal_output_buffer(void) { output_data = (char *)KERNEL_LOAD_ADR; } @@ -262,15 +267,17 @@ serial_setup(reg_scope_instances regi_ser) rec_baud = REG_RD(ser, regi_ser, rw_rec_baud_div); tr_ctrl.stop_bits = 1; /* 2 stop bits. */ + tr_ctrl.en = 1; /* enable transmitter */ + rec_ctrl.en = 1; /* enabler receiver */ /* - * The baudrate setup is a bit fishy, but in the end the transceiver is - * set to 4800 and the receiver to 115200. The magic value is - * 29.493 MHz. + * The baudrate setup used to be a bit fishy, but now transmitter and + * receiver are both set to the intended baud rate, 115200. + * The magic value is 29.493 MHz. */ tr_ctrl.base_freq = regk_ser_f29_493; rec_ctrl.base_freq = regk_ser_f29_493; - tr_baud.div = (29493000 / 8) / 4800; + tr_baud.div = (29493000 / 8) / 115200; rec_baud.div = (29493000 / 8) / 115200; REG_WR(ser, regi_ser, rw_tr_ctrl, tr_ctrl); @@ -280,25 +287,52 @@ serial_setup(reg_scope_instances regi_ser) } void -decompress_kernel() +decompress_kernel(void) { char revision; - /* input_data is set in head.S */ - inbuf = input_data; +#if defined(CONFIG_ETRAX_DEBUG_PORT1) || \ + defined(CONFIG_ETRAX_DEBUG_PORT2) || \ + defined(CONFIG_ETRAX_DEBUG_PORT3) + reg_pinmux_rw_hwprot hwprot; + +#ifdef CONFIG_CRIS_MACH_ARTPEC3 + reg_clkgen_rw_clk_ctrl clk_ctrl; + + /* Enable corresponding clock region when serial 1..3 selected */ + + clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl); + clk_ctrl.sser_ser_dma6_7 = regk_clkgen_yes; + REG_WR(clkgen, regi_clkgen, rw_clk_ctrl, clk_ctrl); +#endif + + /* pinmux setup for ports 1..3 */ + hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot); +#endif #ifdef CONFIG_ETRAX_DEBUG_PORT0 serial_setup(regi_ser0); #endif #ifdef CONFIG_ETRAX_DEBUG_PORT1 + hwprot.ser1 = regk_pinmux_yes; serial_setup(regi_ser1); #endif #ifdef CONFIG_ETRAX_DEBUG_PORT2 + hwprot.ser2 = regk_pinmux_yes; serial_setup(regi_ser2); #endif #ifdef CONFIG_ETRAX_DEBUG_PORT3 + hwprot.ser3 = regk_pinmux_yes; serial_setup(regi_ser3); #endif +#if defined(CONFIG_ETRAX_DEBUG_PORT1) || \ + defined(CONFIG_ETRAX_DEBUG_PORT2) || \ + defined(CONFIG_ETRAX_DEBUG_PORT3) + REG_WR(pinmux, regi_pinmux, rw_hwprot, hwprot); +#endif + + /* input_data is set in head.S */ + inbuf = input_data; setup_normal_output_buffer(); @@ -307,11 +341,11 @@ decompress_kernel() __asm__ volatile ("move $vr,%0" : "=rm" (revision)); if (revision < 32) { - puts("You need an ETRAX FS to run Linux 2.6/crisv32.\n"); + puts("You need an ETRAX FS to run Linux 2.6/crisv32.\r\n"); while(1); } - puts("Uncompressing Linux...\n"); + puts("Uncompressing Linux...\r\n"); gunzip(); - puts("Done. Now booting the kernel.\n"); + puts("Done. Now booting the kernel.\r\n"); } |