Initial import of qemu-2.4.1HEADmaster

1 files changed, 249 insertions, 0 deletions

diff --git a/roms/u-boot/board/syteco/jadecpu/lowlevel_init.S b/roms/u-boot/board/syteco/jadecpu/lowlevel_init.S
new file mode 100644
index 00000000..9568cec9
--- /dev/null
+++ b/roms/u-boot/board/syteco/jadecpu/lowlevel_init.S
@@ -0,0 +1,249 @@
+/*
+ * Board specific setup info
+ *
+ * (C) Copyright 2007, mycable GmbH
+ * Carsten Schneider <cs@mycable.de>, Alexander Bigga <ab@mycable.de>
+ *
+ * (C) Copyright 2003, ARM Ltd.
+ * Philippe Robin, <philippe.robin@arm.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <version.h>
+#include <asm/macro.h>
+#include <asm/arch/mb86r0x.h>
+#include <generated/asm-offsets.h>
+
+/* Set up the platform, once the cpu has been initialized */
+.globl lowlevel_init
+lowlevel_init:
+/*
+ * Initialize Clock Reset Generator (CRG)
+ */
+
+	ldr		r0, =MB86R0x_CRG_BASE
+
+	/* Not change the initial value that is set by external pin.*/
+WAIT_PLL:
+	ldr		r2, [r0, #CRG_CRPR]	/* Wait for PLLREADY */
+	tst		r2, #MB86R0x_CRG_CRPR_PLLRDY
+	beq		WAIT_PLL
+
+	/* Set clock gate control */
+	ldr		r1, =CONFIG_SYS_CRG_CRHA_INIT
+	str		r1, [r0, #CRG_CRHA]
+	ldr		r1, =CONFIG_SYS_CRG_CRPA_INIT
+	str		r1, [r0, #CRG_CRPA]
+	ldr		r1, =CONFIG_SYS_CRG_CRPB_INIT
+	str		r1, [r0, #CRG_CRPB]
+	ldr		r1, =CONFIG_SYS_CRG_CRHB_INIT
+	str		r1, [r0, #CRG_CRHB]
+	ldr		r1, =CONFIG_SYS_CRG_CRAM_INIT
+	str		r1, [r0, #CRG_CRAM]
+
+/*
+ * Initialize External Bus Interface
+ */
+	ldr		r0, =MB86R0x_MEMC_BASE
+
+	ldr		r1, =CONFIG_SYS_MEMC_MCFMODE0_INIT
+	str		r1, [r0, #MEMC_MCFMODE0]
+	ldr		r1, =CONFIG_SYS_MEMC_MCFMODE2_INIT
+	str		r1, [r0, #MEMC_MCFMODE2]
+	ldr		r1, =CONFIG_SYS_MEMC_MCFMODE4_INIT
+	str		r1, [r0, #MEMC_MCFMODE4]
+
+	ldr		r1, =CONFIG_SYS_MEMC_MCFTIM0_INIT
+	str		r1, [r0, #MEMC_MCFTIM0]
+	ldr		r1, =CONFIG_SYS_MEMC_MCFTIM2_INIT
+	str		r1, [r0, #MEMC_MCFTIM2]
+	ldr		r1, =CONFIG_SYS_MEMC_MCFTIM4_INIT
+	str		r1, [r0, #MEMC_MCFTIM4]
+
+	ldr		r1, =CONFIG_SYS_MEMC_MCFAREA0_INIT
+	str		r1, [r0, #MEMC_MCFAREA0]
+	ldr		r1, =CONFIG_SYS_MEMC_MCFAREA2_INIT
+	str		r1, [r0, #MEMC_MCFAREA2]
+	ldr		r1, =CONFIG_SYS_MEMC_MCFAREA4_INIT
+	str		r1, [r0, #MEMC_MCFAREA4]
+
+/*
+ * Initialize DDR2 Controller
+ */
+
+	/* Wait for PLL LOCK up time or more */
+	wait_timer	20
+
+	/*
+	 * (2) Initialize DDRIF
+	 */
+	ldr	r0, =MB86R0x_DDR2_BASE
+	ldr	r1, =CONFIG_SYS_DDR2_DRIMS_INIT
+	strh	r1, [r0, #DDR2_DRIMS]
+
+	/*
+	 * (3) Wait for 20MCKPs(120nsec) or more
+	 */
+	wait_timer	20
+
+	/*
+	 * (4) IRESET/IUSRRST release
+	 */
+	ldr	r0, =MB86R0x_CCNT_BASE
+	ldr	r1, =CONFIG_SYS_CCNT_CDCRC_INIT_1
+	str	r1, [r0, #CCNT_CDCRC]
+
+	/*
+	 * (5) Wait for 20MCKPs(120nsec) or more
+	 */
+	wait_timer	20
+
+	/*
+	 * (6) IDLLRST release
+	 */
+	ldr	r0, =MB86R0x_CCNT_BASE
+	ldr	r1, =CONFIG_SYS_CCNT_CDCRC_INIT_2
+	str	r1, [r0, #CCNT_CDCRC]
+
+	/*
+	 * (7+8) Wait for 200us(=200000ns) or more (DDR2 Spec)
+	 */
+	wait_timer	33536
+
+	/*
+	 * (9) MCKE ON
+	 */
+	ldr	r0, =MB86R0x_DDR2_BASE
+	ldr	r1, =CONFIG_SYS_DDR2_DRIC1_INIT
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_DRIC2_INIT
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =CONFIG_SYS_DDR2_DRCA_INIT
+	strh	r1, [r0, #DDR2_DRCA]
+	ldr	r1, =MB86R0x_DDR2_DRCI_INIT
+	strh	r1, [r0, #DDR2_DRIC]
+
+	/*
+	 * (10) Initialize SDRAM
+	 */
+
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	wait_timer	67			/* 400ns wait */
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_1
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_1
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_2
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_2
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_3
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_3
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_4
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_4
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_5
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_5
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	wait_timer 200
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_6
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_6
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_7
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_7
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	wait_timer	18			/* 105ns wait */
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_8
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_8
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	wait_timer	200			/* MRS to OCD: 200clock */
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_9
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_9
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC1_10
+	strh	r1, [r0, #DDR2_DRIC1]
+	ldr	r1, =CONFIG_SYS_DDR2_INIT_DRIC2_10
+	strh	r1, [r0, #DDR2_DRIC2]
+	ldr	r1, =MB86R0x_DDR2_DRCI_CMD
+	strh	r1, [r0, #DDR2_DRIC]
+
+	ldr	r1, =CONFIG_SYS_DDR2_DRCM_INIT
+	strh	r1, [r0, #DDR2_DRCM]
+
+	ldr	r1, =CONFIG_SYS_DDR2_DRCST1_INIT
+	strh	r1, [r0, #DDR2_DRCST1]
+
+	ldr	r1, =CONFIG_SYS_DDR2_DRCST2_INIT
+	strh	r1, [r0, #DDR2_DRCST2]
+
+	ldr	r1, =CONFIG_SYS_DDR2_DRCR_INIT
+	strh	r1, [r0, #DDR2_DRCR]
+
+	ldr	r1, =CONFIG_SYS_DDR2_DRCF_INIT
+	strh	r1, [r0, #DDR2_DRCF]
+
+	ldr	r1, =CONFIG_SYS_DDR2_DRASR_INIT
+	strh	r1, [r0, #DDR2_DRASR]
+
+	/*
+	 * (11) ODT setting
+	 */
+	ldr	r1, =CONFIG_SYS_DDR2_DROBS_INIT
+	strh	r1, [r0, #DDR2_DROBS]
+	ldr	r1, =CONFIG_SYS_DDR2_DROABA_INIT
+	strh	r1, [r0, #DDR2_DROABA]
+	ldr	r1, =CONFIG_SYS_DDR2_DRIBSODT1_INIT
+	strh	r1, [r0, #DDR2_DRIBSODT1]
+
+	/*
+	 * (12) Shift to ODTCONT ON (SDRAM side) and DDR2 usual operation mode
+	 */
+	ldr	r1, =CONFIG_SYS_DDR2_DROS_INIT
+	strh	r1, [r0, #DDR2_DROS]
+	ldr	r1, =MB86R0x_DDR2_DRCI_NORMAL
+	strh	r1, [r0, #DDR2_DRIC]
+
+	mov pc, lr