X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Fboard%2Fsamsung%2Fgoni%2Flowlevel_init.S;fp=qemu%2Froms%2Fu-boot%2Fboard%2Fsamsung%2Fgoni%2Flowlevel_init.S;h=d52bc09f8d27d088af2fc98768fe67fdded359d6;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/board/samsung/goni/lowlevel_init.S b/qemu/roms/u-boot/board/samsung/goni/lowlevel_init.S
new file mode 100644
index 000000000..d52bc09f8
--- /dev/null
+++ b/qemu/roms/u-boot/board/samsung/goni/lowlevel_init.S
@@ -0,0 +1,446 @@
+/*
+ * Memory Setup stuff - taken from blob memsetup.S
+ *
+ * Copyright (C) 2009 Samsung Electronics
+ * Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <version.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/power.h>
+
+/*
+ * Register usages:
+ *
+ * r5 has zero always
+ * r7 has S5PC100 GPIO base, 0xE0300000
+ * r8 has real GPIO base, 0xE0300000, 0xE0200000 at S5PC100, S5PC110 repectively
+ * r9 has Mobile DDR size, 1 means 1GiB, 2 means 2GiB and so on
+ */
+
+	.globl lowlevel_init
+lowlevel_init:
+	mov	r11, lr
+
+	/* r5 has always zero */
+	mov	r5, #0
+
+	ldr	r7, =S5PC100_GPIO_BASE
+	ldr	r8, =S5PC100_GPIO_BASE
+	/* Read CPU ID */
+	ldr	r2, =S5PC110_PRO_ID
+	ldr	r0, [r2]
+	mov	r1, #0x00010000
+	and	r0, r0, r1
+	cmp	r0, r5
+	beq	100f
+	ldr	r8, =S5PC110_GPIO_BASE
+100:
+	/* Turn on KEY_LED_ON [GPJ4(1)] XMSMWEN */
+	cmp	r7, r8
+	beq	skip_check_didle			@ Support C110 only
+
+	ldr	r0, =S5PC110_RST_STAT
+	ldr	r1, [r0]
+	and	r1, r1, #0x000D0000
+	cmp	r1, #(0x1 << 19)			@ DEEPIDLE_WAKEUP
+	beq	didle_wakeup
+	cmp	r7, r8
+
+skip_check_didle:
+	addeq	r0, r8, #0x280				@ S5PC100_GPIO_J4
+	addne	r0, r8, #0x2C0				@ S5PC110_GPIO_J4
+	ldr	r1, [r0, #0x0]				@ GPIO_CON_OFFSET
+	bic	r1, r1, #(0xf << 4)			@ 1 * 4-bit
+	orr	r1, r1, #(0x1 << 4)
+	str	r1, [r0, #0x0]				@ GPIO_CON_OFFSET
+
+	ldr	r1, [r0, #0x4]				@ GPIO_DAT_OFFSET
+	bic	r1, r1, #(1 << 1)
+	str	r1, [r0, #0x4]				@ GPIO_DAT_OFFSET
+
+	/* Don't setup at s5pc100 */
+	beq	100f
+
+	/*
+	 * Initialize Async Register Setting for EVT1
+	 * Because we are setting EVT1 as the default value of EVT0,
+	 * setting EVT0 as well does not make things worse.
+	 * Thus, for the simplicity, we set for EVT0, too
+	 *
+	 * The "Async Registers" are:
+	 *	0xE0F0_0000
+	 *	0xE1F0_0000
+	 *	0xF180_0000
+	 *	0xF190_0000
+	 *	0xF1A0_0000
+	 *	0xF1B0_0000
+	 *	0xF1C0_0000
+	 *	0xF1D0_0000
+	 *	0xF1E0_0000
+	 *	0xF1F0_0000
+	 *	0xFAF0_0000
+	 */
+	ldr     r0, =0xe0f00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xe1f00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1800000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1900000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1a00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1b00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1c00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1d00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1e00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xf1f00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	ldr     r0, =0xfaf00000
+	ldr     r1, [r0]
+	bic     r1, r1, #0x1
+	str     r1, [r0]
+
+	/*
+	 * Diable ABB block to reduce sleep current at low temperature
+	 * Note that it's hidden register setup don't modify it
+	 */
+	ldr	r0, =0xE010C300
+	ldr	r1, =0x00800000
+	str	r1, [r0]
+
+100:
+	/* IO retension release */
+	ldreq	r0, =S5PC100_OTHERS			@ 0xE0108200
+	ldrne	r0, =S5PC110_OTHERS			@ 0xE010E000
+	ldr	r1, [r0]
+	ldreq	r2, =(1 << 31)				@ IO_RET_REL
+	ldrne	r2, =((1 << 31) | (1 << 30) | (1 << 29) | (1 << 28))
+	orr	r1, r1, r2
+	/* Do not release retention here for S5PC110 */
+	streq	r1, [r0]
+
+	/* Disable Watchdog */
+	ldreq	r0, =S5PC100_WATCHDOG_BASE		@ 0xEA200000
+	ldrne	r0, =S5PC110_WATCHDOG_BASE		@ 0xE2700000
+	str	r5, [r0]
+
+	/* setting SRAM */
+	ldreq	r0, =S5PC100_SROMC_BASE
+	ldrne	r0, =S5PC110_SROMC_BASE
+	ldr	r1, =0x9
+	str	r1, [r0]
+
+	/* S5PC100 has 3 groups of interrupt sources */
+	ldreq	r0, =S5PC100_VIC0_BASE			@ 0xE4000000
+	ldrne	r0, =S5PC110_VIC0_BASE			@ 0xF2000000
+	add	r1, r0, #0x00100000
+	add	r2, r0, #0x00200000
+
+	/* Disable all interrupts (VIC0, VIC1 and VIC2) */
+	mvn	r3, #0x0
+	str	r3, [r0, #0x14]				@ INTENCLEAR
+	str	r3, [r1, #0x14]				@ INTENCLEAR
+	str	r3, [r2, #0x14]				@ INTENCLEAR
+
+	/* Set all interrupts as IRQ */
+	str	r5, [r0, #0xc]				@ INTSELECT
+	str	r5, [r1, #0xc]				@ INTSELECT
+	str	r5, [r2, #0xc]				@ INTSELECT
+
+	/* Pending Interrupt Clear */
+	str	r5, [r0, #0xf00]			@ INTADDRESS
+	str	r5, [r1, #0xf00]			@ INTADDRESS
+	str	r5, [r2, #0xf00]			@ INTADDRESS
+
+	/* for UART */
+	bl	uart_asm_init
+
+	bl	internal_ram_init
+
+	cmp	r7, r8
+	/* Clear wakeup status register */
+	ldreq	r0, =S5PC100_WAKEUP_STAT
+	ldrne	r0, =S5PC110_WAKEUP_STAT
+	ldr	r1, [r0]
+	str	r1, [r0]
+
+	/* IO retension release */
+	ldreq	r0, =S5PC100_OTHERS			@ 0xE0108200
+	ldrne	r0, =S5PC110_OTHERS			@ 0xE010E000
+	ldr	r1, [r0]
+	ldreq	r2, =(1 << 31)				@ IO_RET_REL
+	ldrne	r2, =((1 << 31) | (1 << 30) | (1 << 29) | (1 << 28))
+	orr	r1, r1, r2
+	str	r1, [r0]
+
+	b	1f
+
+didle_wakeup:
+	/* Wait when APLL is locked */
+	ldr	r0, =0xE0100100			@ S5PC110_APLL_CON
+lockloop:
+	ldr	r1, [r0]
+	and	r1, r1, #(1 << 29)
+	cmp	r1, #(1 << 29)
+	bne	lockloop
+
+	ldr	r0, =S5PC110_INFORM0
+	ldr	r1, [r0]
+	mov	pc, r1
+	nop
+	nop
+	nop
+	nop
+	nop
+
+1:
+	mov	lr, r11
+	mov	pc, lr
+
+/*
+ * system_clock_init: Initialize core clock and bus clock.
+ * void system_clock_init(void)
+ */
+system_clock_init:
+	ldr	r0, =S5PC110_CLOCK_BASE		@ 0xE0100000
+
+	/* Check S5PC100 */
+	cmp	r7, r8
+	bne	110f
+100:
+	/* Set Lock Time */
+	ldr	r1, =0xe10			@ Locktime : 0xe10 = 3600
+	str	r1, [r0, #0x000]		@ S5PC100_APLL_LOCK
+	str	r1, [r0, #0x004]		@ S5PC100_MPLL_LOCK
+	str	r1, [r0, #0x008]		@ S5PC100_EPLL_LOCK
+	str	r1, [r0, #0x00C]		@ S5PC100_HPLL_LOCK
+
+	/* S5P_APLL_CON */
+	ldr	r1, =0x81bc0400		@ SDIV 0, PDIV 4, MDIV 444 (1333MHz)
+	str	r1, [r0, #0x100]
+	/* S5P_MPLL_CON */
+	ldr	r1, =0x80590201		@ SDIV 1, PDIV 2, MDIV 89 (267MHz)
+	str	r1, [r0, #0x104]
+	/* S5P_EPLL_CON */
+	ldr	r1, =0x80870303		@ SDIV 3, PDIV 3, MDIV 135 (67.5MHz)
+	str	r1, [r0, #0x108]
+	/* S5P_HPLL_CON */
+	ldr	r1, =0x80600603		@ SDIV 3, PDIV 6, MDIV 96
+	str	r1, [r0, #0x10C]
+
+	ldr     r1, [r0, #0x300]
+	ldr     r2, =0x00003fff
+	bic     r1, r1, r2
+	ldr     r2, =0x00011301
+
+	orr	r1, r1, r2
+	str	r1, [r0, #0x300]
+	ldr     r1, [r0, #0x304]
+	ldr     r2, =0x00011110
+	orr     r1, r1, r2
+	str     r1, [r0, #0x304]
+	ldr     r1, =0x00000001
+	str     r1, [r0, #0x308]
+
+	/* Set Source Clock */
+	ldr	r1, =0x00001111			@ A, M, E, HPLL Muxing
+	str	r1, [r0, #0x200]		@ S5PC1XX_CLK_SRC0
+
+	b	200f
+110:
+	ldr	r0, =0xE010C000			@ S5PC110_PWR_CFG
+
+	/* Set OSC_FREQ value */
+	ldr	r1, =0xf
+	str	r1, [r0, #0x100]		@ S5PC110_OSC_FREQ
+
+	/* Set MTC_STABLE value */
+	ldr	r1, =0xffffffff
+	str	r1, [r0, #0x110]		@ S5PC110_MTC_STABLE
+
+	/* Set CLAMP_STABLE value */
+	ldr	r1, =0x3ff03ff
+	str	r1, [r0, #0x114]		@ S5PC110_CLAMP_STABLE
+
+	ldr	r0, =S5PC110_CLOCK_BASE		@ 0xE0100000
+
+	/* Set Clock divider */
+	ldr	r1, =0x14131330			@ 1:1:4:4, 1:4:5
+	str	r1, [r0, #0x300]
+	ldr	r1, =0x11110111			@ UART[3210]: MMC[3210]
+	str	r1, [r0, #0x310]
+
+	/* Set Lock Time */
+	ldr	r1, =0x2cf			@ Locktime : 30us
+	str	r1, [r0, #0x000]		@ S5PC110_APLL_LOCK
+	ldr	r1, =0xe10			@ Locktime : 0xe10 = 3600
+	str	r1, [r0, #0x008]		@ S5PC110_MPLL_LOCK
+	str	r1, [r0, #0x010]		@ S5PC110_EPLL_LOCK
+	str	r1, [r0, #0x020]		@ S5PC110_VPLL_LOCK
+
+	/* S5PC110_APLL_CON */
+	ldr	r1, =0x80C80601			@ 800MHz
+	str	r1, [r0, #0x100]
+	/* S5PC110_MPLL_CON */
+	ldr	r1, =0x829B0C01			@ 667MHz
+	str	r1, [r0, #0x108]
+	/* S5PC110_EPLL_CON */
+	ldr	r1, =0x80600602			@  96MHz VSEL 0 P 6 M 96 S 2
+	str	r1, [r0, #0x110]
+	/* S5PC110_VPLL_CON */
+	ldr	r1, =0x806C0603			@  54MHz
+	str	r1, [r0, #0x120]
+
+	/* Set Source Clock */
+	ldr	r1, =0x10001111			@ A, M, E, VPLL Muxing
+	str	r1, [r0, #0x200]		@ S5PC1XX_CLK_SRC0
+
+	/* OneDRAM(DMC0) clock setting */
+	ldr	r1, =0x01000000			@ ONEDRAM_SEL[25:24] 1 SCLKMPLL
+	str	r1, [r0, #0x218]		@ S5PC110_CLK_SRC6
+	ldr	r1, =0x30000000			@ ONEDRAM_RATIO[31:28] 3 + 1
+	str	r1, [r0, #0x318]		@ S5PC110_CLK_DIV6
+
+	/* XCLKOUT = XUSBXTI 24MHz */
+	add	r2, r0, #0xE000			@ S5PC110_OTHERS
+	ldr     r1, [r2]
+	orr	r1, r1, #(0x3 << 8)		@ CLKOUT[9:8] 3 XUSBXTI
+	str	r1, [r2]
+
+	/* CLK_IP0 */
+	ldr	r1, =0x8fefeeb			@ DMC[1:0] PDMA0[3] IMEM[5]
+	str	r1, [r0, #0x460]		@ S5PC110_CLK_IP0
+
+	/* CLK_IP1 */
+	ldr	r1, =0xe9fdf0f9			@ FIMD[0] USBOTG[16]
+						@ NANDXL[24]
+	str	r1, [r0, #0x464]		@ S5PC110_CLK_IP1
+
+	/* CLK_IP2 */
+	ldr	r1, =0xf75f7fc			@ CORESIGHT[8] MODEM[9]
+						@ HOSTIF[10] HSMMC0[16]
+						@ HSMMC2[18] VIC[27:24]
+	str	r1, [r0, #0x468]		@ S5PC110_CLK_IP2
+
+	/* CLK_IP3 */
+	ldr	r1, =0x8eff038c			@ I2C[8:6]
+						@ SYSTIMER[16] UART0[17]
+						@ UART1[18] UART2[19]
+						@ UART3[20] WDT[22]
+						@ PWM[23] GPIO[26] SYSCON[27]
+	str	r1, [r0, #0x46c]		@ S5PC110_CLK_IP3
+
+	/* CLK_IP4 */
+	ldr	r1, =0xfffffff1			@ CHIP_ID[0] TZPC[8:5]
+	str	r1, [r0, #0x470]		@ S5PC110_CLK_IP3
+
+200:
+	/* wait at least 200us to stablize all clock */
+	mov	r2, #0x10000
+1:	subs	r2, r2, #1
+	bne	1b
+
+	mov	pc, lr
+
+internal_ram_init:
+	ldreq	r0, =0xE3800000
+	ldrne	r0, =0xF1500000
+	ldr	r1, =0x0
+	str	r1, [r0]
+
+	mov	pc, lr
+
+/*
+ * uart_asm_init: Initialize UART's pins
+ */
+uart_asm_init:
+	/* set GPIO to enable UART0-UART4 */
+	mov	r0, r8
+	ldr	r1, =0x22222222
+	str	r1, [r0, #0x0]			@ S5PC100_GPIO_A0_OFFSET
+	ldr	r1, =0x00002222
+	str	r1, [r0, #0x20]			@ S5PC100_GPIO_A1_OFFSET
+
+	/* Check S5PC100 */
+	cmp	r7, r8
+	bne	110f
+
+	/* UART_SEL GPK0[5] at S5PC100 */
+	add	r0, r8, #0x2A0			@ S5PC100_GPIO_K0_OFFSET
+	ldr	r1, [r0, #0x0]			@ S5PC1XX_GPIO_CON_OFFSET
+	bic	r1, r1, #(0xf << 20)		@ 20 = 5 * 4-bit
+	orr	r1, r1, #(0x1 << 20)		@ Output
+	str	r1, [r0, #0x0]			@ S5PC1XX_GPIO_CON_OFFSET
+
+	ldr	r1, [r0, #0x8]			@ S5PC1XX_GPIO_PULL_OFFSET
+	bic	r1, r1, #(0x3 << 10)		@ 10 = 5 * 2-bit
+	orr	r1, r1, #(0x2 << 10)		@ Pull-up enabled
+	str	r1, [r0, #0x8]			@ S5PC1XX_GPIO_PULL_OFFSET
+
+	ldr	r1, [r0, #0x4]			@ S5PC1XX_GPIO_DAT_OFFSET
+	orr	r1, r1, #(1 << 5)		@ 5 = 5 * 1-bit
+	str	r1, [r0, #0x4]			@ S5PC1XX_GPIO_DAT_OFFSET
+
+	b	200f
+110:
+	/*
+	 * Note that the following address
+	 * 0xE020'0360 is reserved address at S5PC100
+	 */
+	/* UART_SEL MP0_5[7] at S5PC110 */
+	add	r0, r8, #0x360			@ S5PC110_GPIO_MP0_5_OFFSET
+	ldr	r1, [r0, #0x0]			@ S5PC1XX_GPIO_CON_OFFSET
+	bic	r1, r1, #(0xf << 28)		@ 28 = 7 * 4-bit
+	orr	r1, r1, #(0x1 << 28)		@ Output
+	str	r1, [r0, #0x0]			@ S5PC1XX_GPIO_CON_OFFSET
+
+	ldr	r1, [r0, #0x8]			@ S5PC1XX_GPIO_PULL_OFFSET
+	bic	r1, r1, #(0x3 << 14)		@ 14 = 7 * 2-bit
+	orr	r1, r1, #(0x2 << 14)		@ Pull-up enabled
+	str	r1, [r0, #0x8]			@ S5PC1XX_GPIO_PULL_OFFSET
+
+	ldr	r1, [r0, #0x4]			@ S5PC1XX_GPIO_DAT_OFFSET
+	orr	r1, r1, #(1 << 7)		@ 7 = 7 * 1-bit
+	str	r1, [r0, #0x4]			@ S5PC1XX_GPIO_DAT_OFFSET
+200:
+	mov	pc, lr