Initial commit

arch/cris/include/arch-v32/mach-a3/mach/startup.inc

@@ -0,0 +1,84 @@
+#ifndef STARTUP_INC_INCLUDED
+#define STARTUP_INC_INCLUDED
+
+#include <hwregs/asm/reg_map_asm.h>
+#include <hwregs/asm/gio_defs_asm.h>
+#include <hwregs/asm/pio_defs_asm.h>
+#include <hwregs/asm/clkgen_defs_asm.h>
+#include <hwregs/asm/pinmux_defs_asm.h>
+
+	.macro GIO_SET_P BITS, OUTREG
+	bmi	1f		; btstq: bit -> N flag
+	nop
+	or.d	\BITS, \OUTREG
+1:
+	.endm
+
+	.macro GIO_INIT
+	move.d	CONFIG_ETRAX_DEF_GIO_PA_OUT, $r0
+	move.d	REG_ADDR(gio, regi_gio, rw_pa_dout), $r1
+	move.d	$r0, [$r1]
+
+	move.d	CONFIG_ETRAX_DEF_GIO_PA_OE, $r0
+	move.d	REG_ADDR(gio, regi_gio, rw_pa_oe), $r1
+	move.d	$r0, [$r1]
+
+	move.d	CONFIG_ETRAX_DEF_GIO_PB_OUT, $r0
+	move.d	REG_ADDR(gio, regi_gio, rw_pb_dout), $r1
+	move.d	$r0, [$r1]
+
+	move.d	CONFIG_ETRAX_DEF_GIO_PB_OE, $r0
+	move.d	REG_ADDR(gio, regi_gio, rw_pb_oe), $r1
+	move.d	$r0, [$r1]
+
+	move.d	CONFIG_ETRAX_DEF_GIO_PC_OUT, $r0
+	move.d	REG_ADDR(gio, regi_gio, rw_pc_dout), $r1
+	move.d	$r0, [$r1]
+
+	move.d	CONFIG_ETRAX_DEF_GIO_PC_OE, $r0
+	move.d	REG_ADDR(gio, regi_gio, rw_pc_oe), $r1
+	move.d	$r0, [$r1]
+
+	move.d	0xFFFFFFFF, $r0
+	move.d	REG_ADDR(pinmux, regi_pinmux, rw_gio_pa), $r1
+	move.d	$r0, [$r1]
+	move.d	REG_ADDR(pinmux, regi_pinmux, rw_gio_pc), $r1
+	move.d	$r0, [$r1]
+
+	;; If eth_mdio, eth, geth bits are set in hwprot, don't
+	;; set them to gpio, as this means they have been configured
+	;; earlier and shouldn't be changed.
+	move.d	0xFC000000, $r2 ; pins 25..0 are eth_mdio, eth, geth
+	move.d	REG_ADDR(pinmux, regi_pinmux, rw_hwprot), $r1
+	move.d	[$r1], $r0
+	btstq	REG_BIT(pinmux, rw_hwprot, eth), $r0
+	GIO_SET_P 0x00FFFF00, $r2		;; pins 8..23 are eth
+	btstq	REG_BIT(pinmux, rw_hwprot, eth_mdio), $r0
+	GIO_SET_P 0x03000000, $r2		;; pins 24..25 are eth_mdio
+	btstq	REG_BIT(pinmux, rw_hwprot, geth), $r0
+	GIO_SET_P 0x000000FF, $r2		;; pins 0..7 are geth
+	move.d	REG_ADDR(pinmux, regi_pinmux, rw_gio_pb), $r1
+	move.d	$r2, [$r1]
+	.endm
+
+	.macro START_CLOCKS
+	move.d REG_ADDR(clkgen, regi_clkgen, rw_clk_ctrl), $r1
+	move.d [$r1], $r0
+	or.d REG_STATE(clkgen, rw_clk_ctrl, cpu, yes) | \
+	     REG_STATE(clkgen, rw_clk_ctrl, ddr2, yes) | \
+	     REG_STATE(clkgen, rw_clk_ctrl, memarb_bar_ddr, yes), $r0
+	move.d $r0, [$r1]
+	.endm
+
+	.macro SETUP_WAIT_STATES
+	move.d REG_ADDR(pio, regi_pio, rw_ce0_cfg), $r0
+	move.d CONFIG_ETRAX_PIO_CE0_CFG, $r1
+	move.d $r1, [$r0]
+	move.d REG_ADDR(pio, regi_pio, rw_ce1_cfg), $r0
+	move.d CONFIG_ETRAX_PIO_CE1_CFG, $r1
+	move.d $r1, [$r0]
+	move.d REG_ADDR(pio, regi_pio, rw_ce2_cfg), $r0
+	move.d CONFIG_ETRAX_PIO_CE2_CFG, $r1
+	move.d $r1, [$r0]
+	.endm
+#endif