arm(64): Manually clean up the mess left by write32() transition

This patch is a manual cleanup of all the rubble left by coccinelle
waltzing through our code base. It's generally not very good with line
breaks and sometimes even eats comments, so this patch is my best
attempt at putting it all back together.

Also finally remove those hated writel()-style macros from the headers.

BRANCH=none
BUG=chromium:444723
TEST=None (depends on next patch)

Change-Id: Id572f69c420c35577701feb154faa5aaf79cd13e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 817402a80ab77083728b55aed74b3b4202ba7f1d
Original-Change-Id: I3b0dcd6fe09fc4e3b83ee491625d6dced98e3047
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/254865
Reviewed-on: http://review.coreboot.org/9837
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/drivers/pc80/tpm/tpm.c b/src/drivers/pc80/tpm/tpm.c
index 012f61d..22dbc41 100644
--- a/src/drivers/pc80/tpm/tpm.c
+++ b/src/drivers/pc80/tpm/tpm.c
@@ -52,10 +52,6 @@
 	TPM_DEBUG("Write reg 0x%x with 0x%x\n", (reg_), (val_))
 #define printf(x...) printk(BIOS_ERR, x)
 
-#define readb(_a) (*(volatile unsigned char *) (_a))
-#define writeb(_v, _a) (*(volatile unsigned char *) (_a) = (_v))
-#define readl(_a) (*(volatile unsigned long *) (_a))
-#define writel(_v, _a) (*(volatile unsigned long *) (_a) = (_v))
 /* coreboot wrapper for TPM driver (end) */
 
 #ifndef CONFIG_TPM_TIS_BASE_ADDRESS
diff --git a/src/soc/nvidia/tegra/usb.c b/src/soc/nvidia/tegra/usb.c
index 4a069fa..0df16e2 100644
--- a/src/soc/nvidia/tegra/usb.c
+++ b/src/soc/nvidia/tegra/usb.c
@@ -158,26 +158,60 @@
 
 	/* Take stuff out of pwrdn and add some magic numbers from U-Boot */
 	write32(&usb->utmip.xcvr0,
-		0x8 << 25 | 0x3 << 22 | 0 << 21 | 0 << 18 | 0 << 16 | 0 << 14 | 1 << 13 | 0x1 << 10 | 0x1 << 8 | 0x4 << 0 | 0);
-	write32(&usb->utmip.xcvr1, 0x7 << 18 | 0 << 4 | 0 << 2 | 0 << 0 | 0);
-	write32(&usb->utmip.tx, 1 << 19 | 1 << 16 | 1 << 9 | 0);
+		0x8 << 25 |		/* HS slew rate [10:4] */
+		0x3 << 22 |		/* HS driver output 'SETUP' [6:4] */
+		  0 << 21 |		/* LS bias selection */
+		  0 << 18 |		/* PDZI pwrdn */
+		  0 << 16 |		/* PD2 pwrdn */
+		  0 << 14 |		/* PD pwrdn */
+		  1 << 13 |		/* (rst) HS receiver terminations */
+		0x1 << 10 |		/* (rst) LS falling slew rate */
+		0x1 <<  8 |		/* (rst) LS rising slew rate */
+		0x4 <<  0);		/* HS driver output 'SETUP' [3:0] */
+	write32(&usb->utmip.xcvr1,
+		0x7 << 18 |		/* Termination range adjustment */
+		  0 <<  4 |		/* PDDR pwrdn */
+		  0 <<  2 |		/* PDCHRP pwrdn */
+		  0 <<  0);		/* PDDISC pwrdn */
+	write32(&usb->utmip.tx,
+		  1 << 19 |		/* FS send initial J before sync(?) */
+		  1 << 16 |		/* (rst) Allow stuff error on SoP */
+		  1 <<  9);		/* (rst) Check disc only on EoP */
 	write32(&usb->utmip.hsrx0,
-		0x2 << 30 | 1 << 28 | 0x1 << 24 | 0x3 << 21 | 0x11 << 15 | 0x10 << 10 | 0);
+		0x2 << 30 |		/* (rst) Keep pattern on active */
+		  1 << 28 |		/* (rst) Realign inertia on pkt */
+		0x1 << 24 |		/* (rst) edges-1 to move sampling */
+		0x3 << 21 |		/* (rst) squelch delay on EoP */
+	       0x11 << 15 |		/* cycles until IDLE */
+	       0x10 << 10);		/* elastic input depth */
 
 	/* U-Boot claims the USBD values for these are used across all UTMI+
 	 * PHYs. That sounds so horribly wrong that I'm not going to implement
 	 * it, but keep it in mind if we're ever not using the USBD port. */
 	write32(&usb->utmip.bias0,
-		0x1 << 24 | 1 << 23 | 1 << 22 | 1 << 11 | 0 << 10 | 0x1 << 2 | 0x2 << 0 | 0);
+		0x1 << 24 |		/* HS disconnect detect level [2] */
+		  1 << 23 |		/* (rst) IDPD value */
+		  1 << 22 |		/* (rst) IDPD select */
+		  1 << 11 |		/* (rst) OTG pwrdn */
+		  0 << 10 |		/* bias pwrdn */
+		0x1 <<  2 |		/* HS disconnect detect level [1:0] */
+		0x2 <<  0);		/* HS squelch detect level */
 
-	write32(&usb->utmip.bias1, khz / 2200 << 3 | 1 << 2 | 0 << 0 | 0);
+	write32(&usb->utmip.bias1,
+		khz / 2200 << 3 |	/* bias pwrdn cycles (20us?) */
+			 1 << 2 |	/* (rst) VBUS wakeup pwrdn */
+			 0 << 0);	/* PDTRK pwrdn */
 
-	write32(&usb->utmip.debounce, 0xffff << 16 | 25 * khz / 10 << 0 | 0);
+	write32(&usb->utmip.debounce,
+		       0xffff << 16 |	/* (rst) */
+		25 * khz / 10 <<  0);	/* TODO: what's this, really? */
 
 	udelay(1);
 	setbits_le32(&usb->utmip.misc1, 1 << 30); /* PHY_XTAL_CLKEN */
 
-	write32(&usb->suspend_ctrl, 1 << 12 | 0 << 11 | 0);
+	write32(&usb->suspend_ctrl,
+		  1 << 12 |		/* UTMI+ enable */
+		  0 << 11);		/* UTMI+ reset */
 
 	usb_ehci_reset_and_prepare(usb, USB_PHY_UTMIP);
 	printk(BIOS_DEBUG, "USB controller @ %p set up with UTMI+ PHY\n",usb_base);
diff --git a/src/soc/nvidia/tegra124/clock.c b/src/soc/nvidia/tegra124/clock.c
index 1d124b2..8009b48 100644
--- a/src/soc/nvidia/tegra124/clock.c
+++ b/src/soc/nvidia/tegra124/clock.c
@@ -243,14 +243,25 @@
 	clrbits_le32(&clk_rst->utmip_pll_cfg2, 1 << 30); /* PHY_XTAL_CLKEN */
 	udelay(1);
 
-	write32(&clk_rst->utmip_pll_cfg0, 80 << 16 | 1 << 8 | 0);	/* 960MHz * 1 / 80 == 12 MHz */
+	write32(&clk_rst->utmip_pll_cfg0,	/* 960MHz * 1 / 80 == 12 MHz */
+		80 << 16 |			/* (rst) phy_divn */
+		 1 <<  8);			/* (rst) phy_divm */
 
 	write32(&clk_rst->utmip_pll_cfg1,
-		CEIL_DIV(khz, 8000) << 27 | 0 << 16 | 0 << 14 | 0 << 12 | CEIL_DIV(khz, 102) << 0 | 0);
+		CEIL_DIV(khz, 8000) << 27 |	/* pllu_enbl_cnt / 8 (1us) */
+				  0 << 16 |	/* PLLU pwrdn */
+				  0 << 14 |	/* pll_enable pwrdn */
+				  0 << 12 |	/* pll_active pwrdn */
+		 CEIL_DIV(khz, 102) << 0);	/* phy_stbl_cnt / 256 (2.5ms) */
 
 	/* TODO: TRM can't decide if actv is 5us or 10us, keep an eye on it */
 	write32(&clk_rst->utmip_pll_cfg2,
-		0 << 24 | CEIL_DIV(khz, 3200) << 18 | CEIL_DIV(khz, 256) << 6 | 0 << 4 | 0 << 2 | 0 << 0 | 0);
+				  0 << 24 |	/* SAMP_D/XDEV pwrdn */
+		CEIL_DIV(khz, 3200) << 18 |	/* phy_actv_cnt / 16 (5us) */
+		 CEIL_DIV(khz, 256) <<  6 |	/* pllu_stbl_cnt / 256 (1ms) */
+				  0 <<  4 |	/* SAMP_C/USB3 pwrdn */
+				  0 <<  2 |	/* SAMP_B/XHOST pwrdn */
+				  0 <<  0);	/* SAMP_A/USBD pwrdn */
 
 	setbits_le32(&clk_rst->utmip_pll_cfg2, 1 << 30); /* PHY_XTAL_CLKEN */
 }
@@ -387,8 +398,8 @@
  * been determined through trial and error (must lead to div 13 at 24MHz). */
 void clock_early_uart(void)
 {
-	write32(&clk_rst->clk_src_uarta,
-		CLK_M << CLK_SOURCE_SHIFT | CLK_UART_DIV_OVERRIDE | CLK_DIVIDER(TEGRA_CLK_M_KHZ, 1900));
+	write32(&clk_rst->clk_src_uarta, CLK_M << CLK_SOURCE_SHIFT |
+		CLK_UART_DIV_OVERRIDE | CLK_DIVIDER(TEGRA_CLK_M_KHZ, 1900));
 	setbits_le32(&clk_rst->clk_out_enb_l, CLK_L_UARTA);
 	udelay(2);
 	clrbits_le32(&clk_rst->rst_dev_l, CLK_L_UARTA);
@@ -484,7 +495,11 @@
 
 	// Set up cclk_brst and divider.
 	write32(&clk_rst->cclk_brst_pol,
-		(CRC_CCLK_BRST_POL_PLLX_OUT0 << 0) | (CRC_CCLK_BRST_POL_PLLX_OUT0 << 4) | (CRC_CCLK_BRST_POL_PLLX_OUT0 << 8) | (CRC_CCLK_BRST_POL_PLLX_OUT0 << 12) | (CRC_CCLK_BRST_POL_CPU_STATE_RUN << 28));
+		(CRC_CCLK_BRST_POL_PLLX_OUT0     <<  0) |
+		(CRC_CCLK_BRST_POL_PLLX_OUT0     <<  4) |
+		(CRC_CCLK_BRST_POL_PLLX_OUT0     <<  8) |
+		(CRC_CCLK_BRST_POL_PLLX_OUT0     << 12) |
+		(CRC_CCLK_BRST_POL_CPU_STATE_RUN << 28));
 	write32(&clk_rst->super_cclk_div,
 		CRC_SUPER_CCLK_DIVIDER_SUPER_CDIV_ENB);
 
@@ -506,20 +521,31 @@
 	write32(&clk_rst->rst_cpug_cmplx_clr, CRC_RST_CPUG_CLR_NONCPU);
 	// Disable the various resets on the CPUs.
 	write32(&clk_rst->rst_cpug_cmplx_clr,
-		CRC_RST_CPUG_CLR_CPU0 | CRC_RST_CPUG_CLR_CPU1 | CRC_RST_CPUG_CLR_CPU2 | CRC_RST_CPUG_CLR_CPU3 | CRC_RST_CPUG_CLR_DBG0 | CRC_RST_CPUG_CLR_DBG1 | CRC_RST_CPUG_CLR_DBG2 | CRC_RST_CPUG_CLR_DBG3 | CRC_RST_CPUG_CLR_CORE0 | CRC_RST_CPUG_CLR_CORE1 | CRC_RST_CPUG_CLR_CORE2 | CRC_RST_CPUG_CLR_CORE3 | CRC_RST_CPUG_CLR_CX0 | CRC_RST_CPUG_CLR_CX1 | CRC_RST_CPUG_CLR_CX2 | CRC_RST_CPUG_CLR_CX3 | CRC_RST_CPUG_CLR_L2 | CRC_RST_CPUG_CLR_PDBG);
+		CRC_RST_CPUG_CLR_CPU0 | CRC_RST_CPUG_CLR_CPU1 |
+		CRC_RST_CPUG_CLR_CPU2 | CRC_RST_CPUG_CLR_CPU3 |
+		CRC_RST_CPUG_CLR_DBG0 | CRC_RST_CPUG_CLR_DBG1 |
+		CRC_RST_CPUG_CLR_DBG2 | CRC_RST_CPUG_CLR_DBG3 |
+		CRC_RST_CPUG_CLR_CORE0 | CRC_RST_CPUG_CLR_CORE1 |
+		CRC_RST_CPUG_CLR_CORE2 | CRC_RST_CPUG_CLR_CORE3 |
+		CRC_RST_CPUG_CLR_CX0 | CRC_RST_CPUG_CLR_CX1 |
+		CRC_RST_CPUG_CLR_CX2 | CRC_RST_CPUG_CLR_CX3 |
+		CRC_RST_CPUG_CLR_L2 | CRC_RST_CPUG_CLR_PDBG);
 
 	// Disable the reset on the non-CPU parts of the slow cluster.
 	write32(&clk_rst->rst_cpulp_cmplx_clr, CRC_RST_CPULP_CLR_NONCPU);
 	// Disable the various resets on the LP CPU.
 	write32(&clk_rst->rst_cpulp_cmplx_clr,
-		CRC_RST_CPULP_CLR_CPU0 | CRC_RST_CPULP_CLR_DBG0 | CRC_RST_CPULP_CLR_CORE0 | CRC_RST_CPULP_CLR_CX0 | CRC_RST_CPULP_CLR_L2 | CRC_RST_CPULP_CLR_PDBG);
+		CRC_RST_CPULP_CLR_CPU0 | CRC_RST_CPULP_CLR_DBG0 |
+		CRC_RST_CPULP_CLR_CORE0 | CRC_RST_CPULP_CLR_CX0 |
+		CRC_RST_CPULP_CLR_L2 | CRC_RST_CPULP_CLR_PDBG);
 }
 
 void clock_halt_avp(void)
 {
 	for (;;) {
 		write32(&flow->halt_cop_events,
-			FLOW_EVENT_JTAG | FLOW_EVENT_LIC_IRQ | FLOW_EVENT_GIC_IRQ | FLOW_MODE_WAITEVENT);
+			FLOW_EVENT_JTAG | FLOW_EVENT_LIC_IRQ |
+			FLOW_EVENT_GIC_IRQ | FLOW_MODE_WAITEVENT);
 	}
 }
 
@@ -537,11 +563,13 @@
 	/* Typical ratios are 1:2:2 or 1:2:3 sclk:hclk:pclk (See: APB DMA
 	 * features section in the TRM). */
 	write32(&clk_rst->clk_sys_rate,
-		TEGRA_HCLK_RATIO << HCLK_DIVISOR_SHIFT | TEGRA_PCLK_RATIO << PCLK_DIVISOR_SHIFT);
-	write32(&clk_rst->pllc_out,
-		CLK_DIVIDER(TEGRA_PLLC_KHZ, TEGRA_SCLK_KHZ) << PLL_OUT_RATIO_SHIFT | PLL_OUT_CLKEN | PLL_OUT_RSTN);
-	write32(&clk_rst->sclk_brst_pol,
-		SCLK_SYS_STATE_RUN << SCLK_SYS_STATE_SHIFT | SCLK_SOURCE_PLLC_OUT1 << SCLK_RUN_SHIFT);		/* sclk = 300 MHz */
+		TEGRA_HCLK_RATIO << HCLK_DIVISOR_SHIFT |
+		TEGRA_PCLK_RATIO << PCLK_DIVISOR_SHIFT);
+	write32(&clk_rst->pllc_out, CLK_DIVIDER(TEGRA_PLLC_KHZ, TEGRA_SCLK_KHZ)
+		<< PLL_OUT_RATIO_SHIFT | PLL_OUT_CLKEN | PLL_OUT_RSTN);
+	write32(&clk_rst->sclk_brst_pol,		/* sclk = 300 MHz */
+		SCLK_SYS_STATE_RUN << SCLK_SYS_STATE_SHIFT |
+		SCLK_SOURCE_PLLC_OUT1 << SCLK_RUN_SHIFT);
 
 	/* Change the oscillator drive strength (from U-Boot -- why?) */
 	clrsetbits_le32(&clk_rst->osc_ctrl, OSC_XOFS_MASK,
@@ -560,9 +588,15 @@
 
 	/* Set up PLLP_OUT(1|2|3|4) divisor to generate (9.6|48|102|204)MHz */
 	write32(&clk_rst->pllp_outa,
-		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 9600) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT1_SHIFT | (CLK_DIVIDER(TEGRA_PLLP_KHZ, 48000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT2_SHIFT);
+		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 9600) << PLL_OUT_RATIO_SHIFT |
+		PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT1_SHIFT |
+		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 48000) << PLL_OUT_RATIO_SHIFT |
+		PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT2_SHIFT);
 	write32(&clk_rst->pllp_outb,
-		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 102000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT3_SHIFT | (CLK_DIVIDER(TEGRA_PLLP_KHZ, 204000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT4_SHIFT);
+		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 102000) << PLL_OUT_RATIO_SHIFT |
+		PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT3_SHIFT |
+		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 204000) << PLL_OUT_RATIO_SHIFT |
+		PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT4_SHIFT);
 
 	/* init pllx */
 	init_pll(&clk_rst->pllx_base, &clk_rst->pllx_misc,
diff --git a/src/soc/nvidia/tegra124/lp0/tegra_lp0_resume.c b/src/soc/nvidia/tegra124/lp0/tegra_lp0_resume.c
index 2ed2103..e8cd571 100644
--- a/src/soc/nvidia/tegra124/lp0/tegra_lp0_resume.c
+++ b/src/soc/nvidia/tegra124/lp0/tegra_lp0_resume.c
@@ -275,7 +275,7 @@
 	return *(volatile uint32_t *)addr;
 }
 
-inline static void write32(uint32_t val, void *addr)
+inline static void write32(void *addr, uint32_t val)
 {
 	*(volatile uint32_t *)addr = val;
 }
@@ -483,7 +483,10 @@
 
 	// Clear software controlled reset of the fast cluster.
 	write32(clk_rst_rst_cpug_cmplx_clr_ptr,
-		CLR_CPURESET0 | CLR_DBGRESET0 | CLR_CORERESET0 | CLR_CXRESET0 | CLR_CPURESET1 | CLR_DBGRESET1 | CLR_CORERESET1 | CLR_CXRESET1 | CLR_CPURESET2 | CLR_DBGRESET2 | CLR_CORERESET2 | CLR_CXRESET2 | CLR_CPURESET3 | CLR_DBGRESET3 | CLR_CORERESET3 | CLR_CXRESET3);
+		CLR_CPURESET0 | CLR_DBGRESET0 | CLR_CORERESET0 | CLR_CXRESET0 |
+		CLR_CPURESET1 | CLR_DBGRESET1 | CLR_CORERESET1 | CLR_CXRESET1 |
+		CLR_CPURESET2 | CLR_DBGRESET2 | CLR_CORERESET2 | CLR_CXRESET2 |
+		CLR_CPURESET3 | CLR_DBGRESET3 | CLR_CORERESET3 | CLR_CXRESET3);
 }
 
 
@@ -513,8 +516,7 @@
 	uint32_t bit = 0x1 << id;
 	if (!(read32(pmc_ctlr_pwrgate_status_ptr) & bit)) {
 		// Partition is not on. Turn it on.
-		write32(pmc_ctlr_pwrgate_toggle_ptr,
-			id | PWRGATE_TOGGLE_START);
+		write32(pmc_ctlr_pwrgate_toggle_ptr, id | PWRGATE_TOGGLE_START);
 
 		// Wait until the partition is powerd on.
 		while (!(read32(pmc_ctlr_pwrgate_status_ptr) & bit))
diff --git a/src/soc/nvidia/tegra124/uart.c b/src/soc/nvidia/tegra124/uart.c
index 70fafee..f1c70aa 100644
--- a/src/soc/nvidia/tegra124/uart.c
+++ b/src/soc/nvidia/tegra124/uart.c
@@ -67,8 +67,8 @@
 	// Hide the divisor latches.
 	write8(&uart_ptr->lcr, line_config);
 	// Enable FIFOs, and clear receive and transmit.
-	write8(&uart_ptr->fcr,
-	       UART8250_FCR_FIFO_EN | UART8250_FCR_CLEAR_RCVR | UART8250_FCR_CLEAR_XMIT);
+	write8(&uart_ptr->fcr, UART8250_FCR_FIFO_EN |
+	       UART8250_FCR_CLEAR_RCVR | UART8250_FCR_CLEAR_XMIT);
 }
 
 static unsigned char tegra124_uart_rx_byte(struct tegra124_uart *uart_ptr)
diff --git a/src/soc/nvidia/tegra132/clock.c b/src/soc/nvidia/tegra132/clock.c
index c13a086..1495a9a 100644
--- a/src/soc/nvidia/tegra132/clock.c
+++ b/src/soc/nvidia/tegra132/clock.c
@@ -243,14 +243,25 @@
 	clrbits_le32(CLK_RST_REG(utmip_pll_cfg2), 1 << 30); /* PHY_XTAL_CLKEN */
 	udelay(1);
 
-	write32(CLK_RST_REG(utmip_pll_cfg0), 80 << 16 | 1 << 8 | 0);/* 960MHz * 1 / 80 == 12 MHz */
+	write32(CLK_RST_REG(utmip_pll_cfg0),	/* 960MHz * 1 / 80 == 12 MHz */
+		80 << 16 |			/* (rst) phy_divn */
+		 1 <<  8);			/* (rst) phy_divm */
 
 	write32(CLK_RST_REG(utmip_pll_cfg1),
-		div_round_up(khz, 8000) << 27 | 0 << 16 | 0 << 14 | 0 << 12 | div_round_up(khz, 102) << 0 | 0);
+		div_round_up(khz, 8000) << 27 |	/* pllu_enbl_cnt / 8 (1us) */
+				      0 << 16 | /* PLLU pwrdn */
+				      0 << 14 | /* pll_enable pwrdn */
+				      0 << 12 | /* pll_active pwrdn */
+		 div_round_up(khz, 102) << 0);  /* phy_stbl_cnt / 256 (2.5ms) */
 
 	/* TODO: TRM can't decide if actv is 5us or 10us, keep an eye on it */
 	write32(CLK_RST_REG(utmip_pll_cfg2),
-		0 << 24 | div_round_up(khz, 3200) << 18 | div_round_up(khz, 256) << 6 | 0 << 4 | 0 << 2 | 0 << 0 | 0);
+				      0 << 24 |	/* SAMP_D/XDEV pwrdn */
+		div_round_up(khz, 3200) << 18 |	/* phy_actv_cnt / 16 (5us) */
+		 div_round_up(khz, 256) <<  6 |	/* pllu_stbl_cnt / 256 (1ms) */
+				      0 <<  4 |	/* SAMP_C/USB3 pwrdn */
+				      0 <<  2 |	/* SAMP_B/XHOST pwrdn */
+				      0 <<  0);	/* SAMP_A/USBD pwrdn */
 
 	setbits_le32(CLK_RST_REG(utmip_pll_cfg2), 1 << 30); /* PHY_XTAL_CLKEN */
 }
@@ -388,7 +399,8 @@
 void clock_early_uart(void)
 {
 	write32(CLK_RST_REG(clk_src_uarta),
-		CLK_SRC_DEV_ID(UARTA, CLK_M) << CLK_SOURCE_SHIFT | CLK_UART_DIV_OVERRIDE | CLK_DIVIDER(TEGRA_CLK_M_KHZ, 1900));
+		CLK_SRC_DEV_ID(UARTA, CLK_M) << CLK_SOURCE_SHIFT |
+		CLK_UART_DIV_OVERRIDE | CLK_DIVIDER(TEGRA_CLK_M_KHZ, 1900));
 
 	clock_enable_clear_reset_l(CLK_L_UARTA);
 }
@@ -513,7 +525,8 @@
 {
 	for (;;)
 		write32(&flow->halt_cop_events,
-		        FLOW_EVENT_JTAG | FLOW_EVENT_LIC_IRQ | FLOW_EVENT_GIC_IRQ | FLOW_MODE_WAITEVENT);
+			FLOW_EVENT_JTAG | FLOW_EVENT_LIC_IRQ |
+			FLOW_EVENT_GIC_IRQ | FLOW_MODE_WAITEVENT);
 }
 
 void clock_init(void)
@@ -529,12 +542,14 @@
 
 	/* Typical ratios are 1:2:2 or 1:2:3 sclk:hclk:pclk (See: APB DMA
 	 * features section in the TRM). */
-	write32(CLK_RST_REG(clk_sys_rate),
-		1 << HCLK_DIVISOR_SHIFT | 0 << PCLK_DIVISOR_SHIFT);	/* pclk = hclk = sclk/2 */
+	write32(CLK_RST_REG(clk_sys_rate),	/* pclk = hclk = sclk/2 */
+		1 << HCLK_DIVISOR_SHIFT | 0 << PCLK_DIVISOR_SHIFT);
 	write32(CLK_RST_REG(pllc_out),
-		CLK_DIVIDER(TEGRA_PLLC_KHZ, 300000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_CLKEN | PLL_OUT_RSTN);
-	write32(CLK_RST_REG(sclk_brst_pol),
-		SCLK_SYS_STATE_RUN << SCLK_SYS_STATE_SHIFT | SCLK_SOURCE_PLLC_OUT1 << SCLK_RUN_SHIFT);		/* sclk = 300 MHz */
+		CLK_DIVIDER(TEGRA_PLLC_KHZ, 300000) << PLL_OUT_RATIO_SHIFT |
+		PLL_OUT_CLKEN | PLL_OUT_RSTN);
+	write32(CLK_RST_REG(sclk_brst_pol),		/* sclk = 300 MHz */
+		SCLK_SYS_STATE_RUN << SCLK_SYS_STATE_SHIFT |
+		SCLK_SOURCE_PLLC_OUT1 << SCLK_RUN_SHIFT);
 
 	/* Change the oscillator drive strength (from U-Boot -- why?) */
 	clrsetbits_le32(CLK_RST_REG(osc_ctrl), OSC_XOFS_MASK,
@@ -550,9 +565,15 @@
 
 	/* Set up PLLP_OUT(1|2|3|4) divisor to generate (9.6|48|102|204)MHz */
 	write32(CLK_RST_REG(pllp_outa),
-		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 9600) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT1_SHIFT | (CLK_DIVIDER(TEGRA_PLLP_KHZ, 48000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT2_SHIFT);
+		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 9600) << PLL_OUT_RATIO_SHIFT |
+		PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT1_SHIFT |
+		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 48000) << PLL_OUT_RATIO_SHIFT |
+		PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT2_SHIFT);
 	write32(CLK_RST_REG(pllp_outb),
-		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 102000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT3_SHIFT | (CLK_DIVIDER(TEGRA_PLLP_KHZ, 204000) << PLL_OUT_RATIO_SHIFT | PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT4_SHIFT);
+		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 102000) << PLL_OUT_RATIO_SHIFT |
+		PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT3_SHIFT |
+		(CLK_DIVIDER(TEGRA_PLLP_KHZ, 204000) << PLL_OUT_RATIO_SHIFT |
+		PLL_OUT_OVR | PLL_OUT_CLKEN | PLL_OUT_RSTN) << PLL_OUT4_SHIFT);
 
 	/* init pllu */
 	init_pll(CLK_RST_REG(pllu_base), CLK_RST_REG(pllu_misc),
diff --git a/src/soc/nvidia/tegra132/include/soc/tegra_dsi.h b/src/soc/nvidia/tegra132/include/soc/tegra_dsi.h
index 830257d..4e03d93 100644
--- a/src/soc/nvidia/tegra132/include/soc/tegra_dsi.h
+++ b/src/soc/nvidia/tegra132/include/soc/tegra_dsi.h
@@ -207,13 +207,13 @@
 static inline unsigned long tegra_dsi_readl(struct tegra_dsi *dsi,
 			unsigned long reg)
 {
-	return readl(dsi->regs + (reg << 2));
+	return read32(dsi->regs + (reg << 2));
 }
 
 static inline void tegra_dsi_writel(struct tegra_dsi *dsi, unsigned long value,
 			unsigned long reg)
 {
-	writel(value, dsi->regs + (reg << 2));
+	write32(dsi->regs + (reg << 2), value);
 }
 
 #endif /* __TEGRA_DSI_H__ */
diff --git a/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.c b/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.c
index 8392a58..621c4b7 100644
--- a/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.c
+++ b/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.c
@@ -254,7 +254,7 @@
 	return *(volatile uint32_t *)addr;
 }
 
-inline static void write32(uint32_t val, void *addr)
+inline static void write32(void *addr, uint32_t val)
 {
 	*(volatile uint32_t *)addr = val;
 }
@@ -542,8 +542,7 @@
 	uint32_t bit = 0x1 << id;
 	if (!(read32(pmc_ctlr_pwrgate_status_ptr) & bit)) {
 		// Partition is not on. Turn it on.
-		write32(pmc_ctlr_pwrgate_toggle_ptr,
-			id | PWRGATE_TOGGLE_START);
+		write32(pmc_ctlr_pwrgate_toggle_ptr, id | PWRGATE_TOGGLE_START);
 
 		// Wait until the partition is powerd on.
 		while (!(read32(pmc_ctlr_pwrgate_status_ptr) & bit))
diff --git a/src/soc/nvidia/tegra132/spi.c b/src/soc/nvidia/tegra132/spi.c
index 33620fb..6fd1933 100644
--- a/src/soc/nvidia/tegra132/spi.c
+++ b/src/soc/nvidia/tegra132/spi.c
@@ -494,7 +494,7 @@
 		dcache_clean_by_mva(spi->out_buf, bytes);
 
 		write32(&spi->dma_out->regs->apb_ptr,
-			(uintptr_t) & spi->regs->tx_fifo);
+			(uintptr_t)&spi->regs->tx_fifo);
 		write32(&spi->dma_out->regs->ahb_ptr, (uintptr_t)spi->out_buf);
 		setbits_le32(&spi->dma_out->regs->csr, APB_CSR_DIR);
 		setup_dma_params(spi, spi->dma_out);
diff --git a/src/soc/nvidia/tegra132/uart.c b/src/soc/nvidia/tegra132/uart.c
index e7b7ca9..386eaf9 100644
--- a/src/soc/nvidia/tegra132/uart.c
+++ b/src/soc/nvidia/tegra132/uart.c
@@ -74,8 +74,8 @@
 	// Hide the divisor latches.
 	write8(&uart_ptr->lcr, line_config);
 	// Enable FIFOs, and clear receive and transmit.
-	write8(&uart_ptr->fcr,
-	       UART8250_FCR_FIFO_EN | UART8250_FCR_CLEAR_RCVR | UART8250_FCR_CLEAR_XMIT);
+	write8(&uart_ptr->fcr, UART8250_FCR_FIFO_EN |
+	       UART8250_FCR_CLEAR_RCVR | UART8250_FCR_CLEAR_XMIT);
 }
 
 static unsigned char tegra132_uart_rx_byte(struct tegra132_uart *uart_ptr)
diff --git a/src/soc/qualcomm/ipq806x/clock.c b/src/soc/qualcomm/ipq806x/clock.c
index 0ffd83f..d30771f 100644
--- a/src/soc/qualcomm/ipq806x/clock.c
+++ b/src/soc/qualcomm/ipq806x/clock.c
@@ -136,7 +136,12 @@
 	write32(USB30_1_MOC_UTMI_CLK_CTL, 0x10);
 
 	write32(USB30_RESET,
-		1 << 5 | 1 << 4 | 1 << 3 | 1 << 2 | 1 << 1 | 1 << 0 | 0);
+		1 << 5 |		/* assert port2 HS PHY async reset */
+		1 << 4 |		/* assert master async reset */
+		1 << 3 |		/* assert sleep async reset */
+		1 << 2 |		/* assert MOC UTMI async reset */
+		1 << 1 |		/* assert power-on async reset */
+		1 << 0);		/* assert PHY async reset */
 	udelay(5);
 	write32(USB30_RESET, 0);	/* deassert all USB resets again */
 }
diff --git a/src/soc/qualcomm/ipq806x/include/soc/iomap.h b/src/soc/qualcomm/ipq806x/include/soc/iomap.h
index f2500f1..4a3aa49 100644
--- a/src/soc/qualcomm/ipq806x/include/soc/iomap.h
+++ b/src/soc/qualcomm/ipq806x/include/soc/iomap.h
@@ -44,8 +44,8 @@
    macros for read/write. Hence, special macros for readl_i and writel_i are
    included to do this in one place for all occurrences in vendor code
  */
-#define readl_i(a)           readl((const void *)(a))
-#define writel_i(v,a)        writel(v,(void *)a)
+#define readl_i(a)           read32((const void *)(a))
+#define writel_i(v,a)        write32((void *)a, v)
 #define clrsetbits_le32_i(addr, clear, set)  \
 	clrsetbits_le32(((void *)(addr)), (clear), (set))
 
diff --git a/src/soc/qualcomm/ipq806x/qup.c b/src/soc/qualcomm/ipq806x/qup.c
index bc78e7c..a497514 100644
--- a/src/soc/qualcomm/ipq806x/qup.c
+++ b/src/soc/qualcomm/ipq806x/qup.c
@@ -167,10 +167,10 @@
 	while (data_len) {
 		if (data_len == 1 && stop_seq) {
 			write32(QUP_ADDR(gsbi_id, QUP_OUTPUT_FIFO),
-				(QUP_I2C_STOP_SEQ | QUP_I2C_DATA(data_ptr[idx])));
+				QUP_I2C_STOP_SEQ | QUP_I2C_DATA(data_ptr[idx]));
 		} else {
 			write32(QUP_ADDR(gsbi_id, QUP_OUTPUT_FIFO),
-				(QUP_I2C_DATA_SEQ | QUP_I2C_DATA(data_ptr[idx])));
+				QUP_I2C_DATA_SEQ | QUP_I2C_DATA(data_ptr[idx]));
 		}
 		data_len--;
 		idx++;
@@ -235,10 +235,10 @@
 	qup_set_state(gsbi_id, QUP_STATE_RUN);
 
 	write32(QUP_ADDR(gsbi_id, QUP_OUTPUT_FIFO),
-		(QUP_I2C_START_SEQ | (QUP_I2C_ADDR(addr) | QUP_I2C_SLAVE_READ)));
+		QUP_I2C_START_SEQ | (QUP_I2C_ADDR(addr) | QUP_I2C_SLAVE_READ));
 
 	write32(QUP_ADDR(gsbi_id, QUP_OUTPUT_FIFO),
-		(QUP_I2C_RECV_SEQ | data_len));
+		QUP_I2C_RECV_SEQ | data_len);
 
 	ret = qup_fifo_wait_while(gsbi_id, OUTPUT_FIFO_NOT_EMPTY);
 	if (ret)
diff --git a/src/soc/qualcomm/ipq806x/usb.c b/src/soc/qualcomm/ipq806x/usb.c
index d7dac72..72ec19e 100644
--- a/src/soc/qualcomm/ipq806x/usb.c
+++ b/src/soc/qualcomm/ipq806x/usb.c
@@ -102,15 +102,32 @@
 static void setup_dwc3(struct usb_dwc3 *dwc3)
 {
 	write32(&dwc3->usb3pipectl,
-		0x1 << 31 | 0x1 << 25 | 0x1 << 24 | 0x1 << 19 | 0x1 << 18 | 0x1 << 1 | 0x1 << 0 | 0);
+		0x1 << 31 |	/* assert PHY soft reset */
+		0x1 << 25 |	/* (default) U1/U2 exit fail -> recovery? */
+		0x1 << 24 |	/* (default) activate PHY low power states */
+		0x1 << 19 |	/* (default) PHY low power delay value */
+		0x1 << 18 |	/* (default) activate PHY low power delay */
+		0x1 <<  1 |	/* (default) Tx deemphasis value */
+		0x1 <<  0);	/* (default) elastic buffer mode */
 
 	write32(&dwc3->usb2phycfg,
-		0x1 << 31 | 0x9 << 10 | 0x1 << 8 | 0x1 << 6 | 0);
+		0x1 << 31 |	/* assert PHY soft reset */
+		0x9 << 10 |	/* (default) PHY clock turnaround 8-bit UTMI+ */
+		0x1 <<  8 |	/* (default) enable PHY sleep in L1 */
+		0x1 <<  6);	/* (default) enable PHY suspend */
 
 	write32(&dwc3->ctl,
-		0x2 << 19 | 0x1 << 16 | 0x1 << 12 | 0x1 << 11 | 0x1 << 10 | 0x1 << 2 | 0);
+		0x2 << 19 |	/* (default) suspend clock scaling */
+		0x1 << 16 |	/* retry SS three times before HS downgrade */
+		0x1 << 12 |	/* port capability HOST */
+		0x1 << 11 |	/* assert core soft reset */
+		0x1 << 10 |	/* (default) sync ITP to refclk */
+		0x1 <<  2);	/* U2 exit after 8us LFPS (instead of 248ns) */
 
-	write32(&dwc3->uctl, 0x32 << 22 | 0x1 << 15 | 0x10 << 0 | 0);
+	write32(&dwc3->uctl,
+		0x32 << 22 |	/* (default) reference clock period in ns */
+		 0x1 << 15 |	/* (default) XHCI compliant device addressing */
+		0x10 << 0); 	/* (default) devices time out after 32us */
 
 	udelay(5);
 
@@ -122,13 +139,31 @@
 static void setup_phy(struct usb_qc_phy *phy)
 {
 	write32(&phy->ss_phy_ctrl,
-		0x1 << 24 | 0x1 << 8 | 0x1 << 7 | 0x19 << 0 | 0);
+		0x1 << 24 |	/* Indicate VBUS power present */
+		0x1 <<  8 |	/* Enable USB3 ref clock to prescaler */
+		0x1 <<  7 |	/* assert SS PHY reset */
+		0x19 << 0);	/* (default) reference clock multiplier */
 
 	write32(&phy->hs_phy_ctrl,
-		0x1 << 26 | 0x1 << 25 | 0x1 << 24 | 0x1 << 21 | 0x1 << 20 | 0x1 << 18 | 0x1 << 17 | 0x1 << 11 | 0x1 << 9 | 0x1 << 8 | 0x1 << 7 | 0x7 << 4 | 0x1 << 1 | 0);
+		0x1 << 26 |	/* (default) unclamp DPSE/DMSE VLS */
+		0x1 << 25 |	/* (default) select freeclk for utmi_clk */
+		0x1 << 24 |	/* (default) unclamp DMSE VLS */
+		0x1 << 21 |	/* (default) enable UTMI clock */
+		0x1 << 20 |	/* set OTG VBUS as valid */
+		0x1 << 18 |	/* use ref clock from core */
+		0x1 << 17 |	/* (default) unclamp DPSE VLS */
+		0x1 << 11 |	/* force xo/bias/pll to stay on in suspend */
+		0x1 <<  9 | 	/* (default) unclamp IDHV */
+		0x1 <<  8 |	/* (default) unclamp VLS (again???) */
+		0x1 <<  7 |	/* (default) unclamp HV VLS */
+		0x7 <<  4 |	/* select frequency (no idea which one) */
+		0x1 <<  1);	/* (default) "retention enable" */
 
 	write32(&phy->ss_phy_param1,
-		0x6e << 20 | 0x20 << 14 | 0x17 << 8 | 0x9 << 3 | 0);
+		0x6e << 20 |	/* full TX swing amplitude */
+		0x20 << 14 |	/* (default) 6dB TX deemphasis */
+		0x17 <<  8 |	/* 3.5dB TX deemphasis */
+		 0x9 <<  3);	/* (default) LoS detector level */
 
 	write32(&phy->general_cfg, 0x1 << 2);	/* set XHCI 1.00 compliance */
 
diff --git a/src/soc/rockchip/rk3288/clock.c b/src/soc/rockchip/rk3288/clock.c
index a9c888d..89503e5 100644
--- a/src/soc/rockchip/rk3288/clock.c
+++ b/src/soc/rockchip/rk3288/clock.c
@@ -220,7 +220,8 @@
 	write32(&pll_con[3], RK_SETBITS(PLL_RESET_MSK));
 
 	write32(&pll_con[0],
-		RK_CLRSETBITS(PLL_NR_MSK, (div->nr - 1) << PLL_NR_SHIFT) | RK_CLRSETBITS(PLL_OD_MSK, (div->no - 1)));
+		RK_CLRSETBITS(PLL_NR_MSK, (div->nr - 1) << PLL_NR_SHIFT) |
+		RK_CLRSETBITS(PLL_OD_MSK, (div->no - 1)));
 
 	write32(&pll_con[1], RK_CLRSETBITS(PLL_NF_MSK, (div->nf - 1)));
 
@@ -259,7 +260,8 @@
 
 	/* pll enter slow-mode */
 	write32(&cru_ptr->cru_mode_con,
-		RK_CLRSETBITS(GPLL_MODE_MSK, GPLL_MODE_SLOW) | RK_CLRSETBITS(CPLL_MODE_MSK, CPLL_MODE_SLOW));
+		RK_CLRSETBITS(GPLL_MODE_MSK, GPLL_MODE_SLOW) |
+		RK_CLRSETBITS(CPLL_MODE_MSK, CPLL_MODE_SLOW));
 
 	/* init pll */
 	rkclk_set_pll(&cru_ptr->cru_gpll_con[0], &gpll_init_cfg);
@@ -288,8 +290,14 @@
 	assert((pclk_div + 1) * PD_BUS_PCLK_HZ ==
 		PD_BUS_ACLK_HZ && pclk_div < 0x7);
 
-	write32(&cru_ptr->cru_clksel_con[1],
-		RK_SETBITS(PD_BUS_SEL_GPLL) | RK_CLRSETBITS(PD_BUS_PCLK_DIV_MSK, pclk_div << PD_BUS_PCLK_DIV_SHIFT) | RK_CLRSETBITS(PD_BUS_HCLK_DIV_MSK, hclk_div << PD_BUS_HCLK_DIV_SHIFT) | RK_CLRSETBITS(PD_BUS_ACLK_DIV0_MASK, aclk_div << PD_BUS_ACLK_DIV0_SHIFT) | RK_CLRSETBITS(PD_BUS_ACLK_DIV1_MASK, 0 << 0));
+	write32(&cru_ptr->cru_clksel_con[1], RK_SETBITS(PD_BUS_SEL_GPLL) |
+		RK_CLRSETBITS(PD_BUS_PCLK_DIV_MSK,
+			      pclk_div << PD_BUS_PCLK_DIV_SHIFT) |
+		RK_CLRSETBITS(PD_BUS_HCLK_DIV_MSK,
+			      hclk_div << PD_BUS_HCLK_DIV_SHIFT) |
+		RK_CLRSETBITS(PD_BUS_ACLK_DIV0_MASK,
+			      aclk_div << PD_BUS_ACLK_DIV0_SHIFT) |
+		RK_CLRSETBITS(PD_BUS_ACLK_DIV1_MASK, 0 << 0));
 
 	/*
 	 * peri clock pll source selection and
@@ -306,12 +314,18 @@
 	assert((1 << pclk_div) * PERI_PCLK_HZ ==
 		PERI_ACLK_HZ && (pclk_div < 0x4));
 
-	write32(&cru_ptr->cru_clksel_con[10],
-		RK_SETBITS(PERI_SEL_GPLL) | RK_CLRSETBITS(PERI_PCLK_DIV_MSK, pclk_div << PERI_PCLK_DIV_SHIFT) | RK_CLRSETBITS(PERI_HCLK_DIV_MSK, hclk_div << PERI_HCLK_DIV_SHIFT) | RK_CLRSETBITS(PERI_ACLK_DIV_MSK, aclk_div << PERI_ACLK_DIV_SHIFT));
+	write32(&cru_ptr->cru_clksel_con[10], RK_SETBITS(PERI_SEL_GPLL) |
+		RK_CLRSETBITS(PERI_PCLK_DIV_MSK,
+			      pclk_div << PERI_PCLK_DIV_SHIFT) |
+		RK_CLRSETBITS(PERI_HCLK_DIV_MSK,
+			      hclk_div << PERI_HCLK_DIV_SHIFT) |
+		RK_CLRSETBITS(PERI_ACLK_DIV_MSK,
+			      aclk_div << PERI_ACLK_DIV_SHIFT));
 
 	/* PLL enter normal-mode */
 	write32(&cru_ptr->cru_mode_con,
-		RK_CLRSETBITS(GPLL_MODE_MSK, GPLL_MODE_NORM) | RK_CLRSETBITS(CPLL_MODE_MSK, CPLL_MODE_NORM));
+		RK_CLRSETBITS(GPLL_MODE_MSK, GPLL_MODE_NORM) |
+		RK_CLRSETBITS(CPLL_MODE_MSK, CPLL_MODE_NORM));
 
 }
 
@@ -336,15 +350,19 @@
 	 * core clock select apll, apll clk = 1800MHz
 	 * arm clk = 1800MHz, mpclk = 450MHz, m0clk = 900MHz
 	 */
-	write32(&cru_ptr->cru_clksel_con[0],
-		RK_CLRBITS(CORE_SEL_PLL_MSK) | RK_CLRSETBITS(A12_DIV_MSK, 0 << A12_DIV_SHIFT) | RK_CLRSETBITS(MP_DIV_MSK, 3 << MP_DIV_SHIFT) | RK_CLRSETBITS(M0_DIV_MSK, 1 << 0));
+	write32(&cru_ptr->cru_clksel_con[0], RK_CLRBITS(CORE_SEL_PLL_MSK) |
+		RK_CLRSETBITS(A12_DIV_MSK, 0 << A12_DIV_SHIFT) |
+		RK_CLRSETBITS(MP_DIV_MSK, 3 << MP_DIV_SHIFT) |
+		RK_CLRSETBITS(M0_DIV_MSK, 1 << 0));
 
 	/*
 	 * set up dependent divisors for L2RAM/ATCLK and PCLK clocks.
 	 * l2ramclk = 900MHz, atclk = 450MHz, pclk_dbg = 450MHz
 	 */
 	write32(&cru_ptr->cru_clksel_con[37],
-		RK_CLRSETBITS(L2_DIV_MSK, 1 << 0) | RK_CLRSETBITS(ATCLK_DIV_MSK, (3 << ATCLK_DIV_SHIFT)) | RK_CLRSETBITS(PCLK_DBG_DIV_MSK, (3 << PCLK_DBG_DIV_SHIFT)));
+		RK_CLRSETBITS(L2_DIV_MSK, 1 << 0) |
+		RK_CLRSETBITS(ATCLK_DIV_MSK, (3 << ATCLK_DIV_SHIFT)) |
+		RK_CLRSETBITS(PCLK_DBG_DIV_MSK, (3 << PCLK_DBG_DIV_SHIFT)));
 
 	/* PLL enter normal-mode */
 	write32(&cru_ptr->cru_mode_con,
@@ -399,7 +417,12 @@
 	u32 phy_srstn_shift = 5 * ch;
 
 	write32(&cru_ptr->cru_softrst_con[10],
-		RK_CLRSETBITS(1 << phy_ctl_srstn_shift, phy << phy_ctl_srstn_shift) | RK_CLRSETBITS(1 << ctl_psrstn_shift, ctl << ctl_psrstn_shift) | RK_CLRSETBITS(1 << ctl_srstn_shift, ctl << ctl_srstn_shift) | RK_CLRSETBITS(1 << phy_psrstn_shift, phy << phy_psrstn_shift) | RK_CLRSETBITS(1 << phy_srstn_shift, phy << phy_srstn_shift));
+		RK_CLRSETBITS(1 << phy_ctl_srstn_shift,
+			      phy << phy_ctl_srstn_shift) |
+		RK_CLRSETBITS(1 << ctl_psrstn_shift, ctl << ctl_psrstn_shift) |
+		RK_CLRSETBITS(1 << ctl_srstn_shift, ctl << ctl_srstn_shift) |
+		RK_CLRSETBITS(1 << phy_psrstn_shift, phy << phy_psrstn_shift) |
+		RK_CLRSETBITS(1 << phy_srstn_shift, phy << phy_srstn_shift));
 }
 
 void rkclk_ddr_phy_ctl_reset(u32 ch, u32 n)
@@ -407,7 +430,8 @@
 	u32 phy_ctl_srstn_shift = 4 + 5 * ch;
 
 	write32(&cru_ptr->cru_softrst_con[10],
-		RK_CLRSETBITS(1 << phy_ctl_srstn_shift, n << phy_ctl_srstn_shift));
+		RK_CLRSETBITS(1 << phy_ctl_srstn_shift,
+		n << phy_ctl_srstn_shift));
 }
 
 void rkclk_configure_spi(unsigned int bus, unsigned int hz)
@@ -419,15 +443,18 @@
 	switch (bus) {	/*select gpll as spi src clk, and set div*/
 	case 0:
 		write32(&cru_ptr->cru_clksel_con[25],
-			RK_CLRSETBITS(1 << 7 | 0x1f << 0, 1 << 7 | (src_clk_div - 1) << 0));
+			RK_CLRSETBITS(1 << 7 | 0x1f << 0,
+				      1 << 7 | (src_clk_div - 1) << 0));
 		break;
 	case 1:
 		write32(&cru_ptr->cru_clksel_con[25],
-			RK_CLRSETBITS(1 << 15 | 0x1f << 8, 1 << 15 | (src_clk_div - 1) << 8));
+			RK_CLRSETBITS(1 << 15 | 0x1f << 8,
+				      1 << 15 | (src_clk_div - 1) << 8));
 		break;
 	case 2:
 		write32(&cru_ptr->cru_clksel_con[39],
-			RK_CLRSETBITS(1 << 7 | 0x1f << 0, 1 << 7 | (src_clk_div - 1) << 0));
+			RK_CLRSETBITS(1 << 7 | 0x1f << 0,
+				      1 << 7 | (src_clk_div - 1) << 0));
 		break;
 	default:
 		printk(BIOS_ERR, "do not support this spi bus\n");
@@ -454,7 +481,8 @@
 	   i2s0_clk_sel: divider ouput from fraction
 	   i2s0_pll_div_con: 0*/
 	write32(&cru_ptr->cru_clksel_con[4],
-		RK_CLRSETBITS(1 << 15 | 1 << 12 | 3 << 8 | 0x7f << 0, 1 << 15 | 0 << 12 | 1 << 8 | 0 << 0));
+		RK_CLRSETBITS(1 << 15 | 1 << 12 | 3 << 8 | 0x7f << 0,
+			      1 << 15 | 0 << 12 | 1 << 8 | 0 << 0));
 
 	/* set frac divider */
 	v = clk_gcd(GPLL_HZ, hz);
@@ -569,12 +597,14 @@
 	switch (vop_id) {
 	case 0:
 		write32(&cru_ptr->cru_clksel_con[31],
-			RK_CLRSETBITS(3 << 6 | 0x1f << 0, 0 << 6 | (div - 1) << 0));
+			RK_CLRSETBITS(3 << 6 | 0x1f << 0,
+				      0 << 6 | (div - 1) << 0));
 		break;
 
 	case 1:
 		write32(&cru_ptr->cru_clksel_con[31],
-			RK_CLRSETBITS(3 << 14 | 0x1f << 8, 0 << 14 | (div - 1) << 8));
+			RK_CLRSETBITS(3 << 14 | 0x1f << 8,
+				      0 << 14 | (div - 1) << 8));
 		break;
 	}
 }
diff --git a/src/soc/rockchip/rk3288/edp.c b/src/soc/rockchip/rk3288/edp.c
index 38e972d..e0590ab 100644
--- a/src/soc/rockchip/rk3288/edp.c
+++ b/src/soc/rockchip/rk3288/edp.c
@@ -57,25 +57,27 @@
 	write32(&edp->regs->pll_reg_1, REF_CLK_24M);
 
 	/*initial value*/
-	write32(&edp->regs->pll_reg_2,
-		LDO_OUTPUT_V_SEL_145 | KVCO_DEFALUT | CHG_PUMP_CUR_SEL_5US | V2L_CUR_SEL_1MA);
+	write32(&edp->regs->pll_reg_2, LDO_OUTPUT_V_SEL_145 | KVCO_DEFALUT |
+		CHG_PUMP_CUR_SEL_5US | V2L_CUR_SEL_1MA);
 
-	write32(&edp->regs->pll_reg_3,
-		LOCK_DET_CNT_SEL_256 | LOOP_FILTER_RESET | PALL_SSC_RESET | LOCK_DET_BYPASS | PLL_LOCK_DET_MODE | PLL_LOCK_DET_FORCE);
+	write32(&edp->regs->pll_reg_3, LOCK_DET_CNT_SEL_256 |
+		LOOP_FILTER_RESET | PALL_SSC_RESET | LOCK_DET_BYPASS |
+		PLL_LOCK_DET_MODE | PLL_LOCK_DET_FORCE);
 
-	write32(&edp->regs->pll_reg_5,
-		REGULATOR_V_SEL_950MV | STANDBY_CUR_SEL | CHG_PUMP_INOUT_CTRL_1200MV | CHG_PUMP_INPUT_CTRL_OP);
+	write32(&edp->regs->pll_reg_5, REGULATOR_V_SEL_950MV | STANDBY_CUR_SEL |
+		CHG_PUMP_INOUT_CTRL_1200MV | CHG_PUMP_INPUT_CTRL_OP);
 
 	write32(&edp->regs->ssc_reg, SSC_OFFSET | SSC_MODE | SSC_DEPTH);
 
-	write32(&edp->regs->tx_common,
-		TX_SWING_PRE_EMP_MODE | PRE_DRIVER_PW_CTRL1 | LP_MODE_CLK_REGULATOR | RESISTOR_MSB_CTRL | RESISTOR_CTRL);
+	write32(&edp->regs->tx_common, TX_SWING_PRE_EMP_MODE |
+		PRE_DRIVER_PW_CTRL1 | LP_MODE_CLK_REGULATOR |
+		RESISTOR_MSB_CTRL | RESISTOR_CTRL);
 
-	write32(&edp->regs->dp_aux,
-		DP_AUX_COMMON_MODE | DP_AUX_EN | AUX_TERM_50OHM);
+	write32(&edp->regs->dp_aux, DP_AUX_COMMON_MODE |
+		DP_AUX_EN | AUX_TERM_50OHM);
 
-	write32(&edp->regs->dp_bias,
-		DP_BG_OUT_SEL | DP_DB_CUR_CTRL | DP_BG_SEL | DP_RESISTOR_TUNE_BG);
+	write32(&edp->regs->dp_bias, DP_BG_OUT_SEL | DP_DB_CUR_CTRL |
+		DP_BG_SEL | DP_RESISTOR_TUNE_BG);
 
 	write32(&edp->regs->dp_reserv2,
 		CH1_CH3_SWING_EMP_CTRL | CH0_CH2_SWING_EMP_CTRL);
diff --git a/src/soc/rockchip/rk3288/gpio.c b/src/soc/rockchip/rk3288/gpio.c
index 5fc9c7b..96b8354 100644
--- a/src/soc/rockchip/rk3288/gpio.c
+++ b/src/soc/rockchip/rk3288/gpio.c
@@ -53,7 +53,8 @@
 				3 << (gpio.idx * 2),  pull << (gpio.idx * 2));
 	else
 		write32(&rk3288_grf->gpio1_p[(gpio.port - 1)][gpio.bank],
-		        RK_CLRSETBITS(3 << (gpio.idx * 2), pull << (gpio.idx * 2)));
+			RK_CLRSETBITS(3 << (gpio.idx * 2),
+				   pull << (gpio.idx * 2)));
 }
 
 void gpio_input(gpio_t gpio)
diff --git a/src/soc/rockchip/rk3288/pwm.c b/src/soc/rockchip/rk3288/pwm.c
index fb47dc8..9f993f7 100644
--- a/src/soc/rockchip/rk3288/pwm.c
+++ b/src/soc/rockchip/rk3288/pwm.c
@@ -75,8 +75,9 @@
 	/*use rk pwm*/
 	write32(&rk3288_grf->soc_con2, RK_SETBITS(1 << 0));
 
-	write32(&rk3288_pwm->pwm[id].pwm_ctrl,
-		PWM_SEL_SRC_CLK | PWM_OUTPUT_LEFT | PWM_LP_DISABLE | PWM_CONTINUOUS | PWM_DUTY_POSTIVE | PWM_INACTIVE_POSTIVE | RK_PWM_DISABLE);
+	write32(&rk3288_pwm->pwm[id].pwm_ctrl, PWM_SEL_SRC_CLK |
+		PWM_OUTPUT_LEFT | PWM_LP_DISABLE | PWM_CONTINUOUS |
+		PWM_DUTY_POSTIVE | PWM_INACTIVE_POSTIVE | RK_PWM_DISABLE);
 
 	period = (PD_BUS_PCLK_HZ / 1000) * period_ns / USECS_PER_SEC;
 	duty = (PD_BUS_PCLK_HZ / 1000) * duty_ns / USECS_PER_SEC;
diff --git a/src/soc/rockchip/rk3288/sdram.c b/src/soc/rockchip/rk3288/sdram.c
index 86acf6d..e7d33ea 100644
--- a/src/soc/rockchip/rk3288/sdram.c
+++ b/src/soc/rockchip/rk3288/sdram.c
@@ -609,12 +609,15 @@
 			sdram_params->pctl_timing.tcl - 1);
 		write32(&ddr_pctl_regs->dfitphywrlat,
 			sdram_params->pctl_timing.tcwl);
-		write32(&ddr_pctl_regs->mcfg,
-			LPDDR2_S4 | MDDR_LPDDR2_CLK_STOP_IDLE(0) | LPDDR2_EN | BURSTLENGTH_CFG(burstlen) | TFAW_CFG(6) | PD_EXIT_FAST | PD_TYPE(1) | PD_IDLE(0));
+		write32(&ddr_pctl_regs->mcfg, LPDDR2_S4 |
+			MDDR_LPDDR2_CLK_STOP_IDLE(0) | LPDDR2_EN |
+			BURSTLENGTH_CFG(burstlen) | TFAW_CFG(6) |
+			PD_EXIT_FAST | PD_TYPE(1) | PD_IDLE(0));
 		write32(&rk3288_grf->soc_con0, MSCH_MAINDDR3(channel, 0));
 
-		write32(&rk3288_grf->soc_con2,
-			PUBL_LPDDR3_EN(channel, 1) | PCTL_BST_DISABLE(channel, 1) | PCTL_LPDDR3_ODT_EN(channel, sdram_params->odt));
+		write32(&rk3288_grf->soc_con2, PUBL_LPDDR3_EN(channel, 1) |
+			PCTL_BST_DISABLE(channel, 1) |
+			PCTL_LPDDR3_ODT_EN(channel, sdram_params->odt));
 
 		break;
 	case DDR3:
@@ -627,11 +630,14 @@
 		write32(&ddr_pctl_regs->dfitphywrlat,
 			sdram_params->pctl_timing.tcwl - 1);
 		write32(&ddr_pctl_regs->mcfg,
-			MDDR_LPDDR2_CLK_STOP_IDLE(0) | DDR3_EN | DDR2_DDR3_BL_8 | TFAW_CFG(6) | PD_EXIT_SLOW | PD_TYPE(1) | PD_IDLE(0));
+			MDDR_LPDDR2_CLK_STOP_IDLE(0) | DDR3_EN |
+			DDR2_DDR3_BL_8 | TFAW_CFG(6) |
+			PD_EXIT_SLOW | PD_TYPE(1) | PD_IDLE(0));
 		write32(&rk3288_grf->soc_con0, MSCH_MAINDDR3(channel, 1));
 
-		write32(&rk3288_grf->soc_con2,
-			PUBL_LPDDR3_EN(channel, 0) | PCTL_BST_DISABLE(channel, 0) | PCTL_LPDDR3_ODT_EN(channel, 0));
+		write32(&rk3288_grf->soc_con2, PUBL_LPDDR3_EN(channel, 0) |
+			PCTL_BST_DISABLE(channel, 0) |
+			PCTL_LPDDR3_ODT_EN(channel, 0));
 
 		break;
 	}
@@ -656,11 +662,14 @@
 	write32(&msch_regs->devtodev,
 		BUSWRTORD(2) | BUSRDTOWR(2) | BUSRDTORD(1));
 	write32(&ddr_publ_regs->ptr[0],
-		PRT_DLLLOCK(div_round_up(sdram_params->ddr_freq / MHz * 5120, 1000)) | PRT_DLLSRST(div_round_up(sdram_params->ddr_freq / MHz * 50, 1000)) | PRT_ITMSRST(8));
+	   PRT_DLLLOCK(div_round_up(sdram_params->ddr_freq / MHz * 5120, 1000))
+	 | PRT_DLLSRST(div_round_up(sdram_params->ddr_freq / MHz * 50, 1000))
+	 | PRT_ITMSRST(8));
 	write32(&ddr_publ_regs->ptr[1],
-		PRT_DINIT0(div_round_up(sdram_params->ddr_freq / MHz * 500000, 1000)) | PRT_DINIT1(div_round_up(sdram_params->ddr_freq / MHz * 400, 1000)));
-	write32(&ddr_publ_regs->ptr[2],
-		PRT_DINIT2(MIN(dinit2, 0x1ffff)) | PRT_DINIT3(div_round_up(sdram_params->ddr_freq / MHz * 1000, 1000)));
+	   PRT_DINIT0(div_round_up(sdram_params->ddr_freq / MHz * 500000, 1000))
+	 | PRT_DINIT1(div_round_up(sdram_params->ddr_freq / MHz * 400, 1000)));
+	write32(&ddr_publ_regs->ptr[2], PRT_DINIT2(MIN(dinit2, 0x1ffff))
+	 | PRT_DINIT3(div_round_up(sdram_params->ddr_freq / MHz * 1000, 1000)));
 
 	switch (sdram_params->dramtype) {
 	case LPDDR3:
diff --git a/src/soc/rockchip/rk3288/uart.c b/src/soc/rockchip/rk3288/uart.c
index 8ba1fde..7710c99 100644
--- a/src/soc/rockchip/rk3288/uart.c
+++ b/src/soc/rockchip/rk3288/uart.c
@@ -103,8 +103,8 @@
 	// Hide the divisor latches.
 	write32(&uart_ptr->lcr, line_config);
 	// Enable FIFOs, and clear receive and transmit.
-	write32(&uart_ptr->fcr,
-		UART8250_FCR_FIFO_EN | UART8250_FCR_CLEAR_RCVR | UART8250_FCR_CLEAR_XMIT);
+	write32(&uart_ptr->fcr, UART8250_FCR_FIFO_EN |
+		UART8250_FCR_CLEAR_RCVR | UART8250_FCR_CLEAR_XMIT);
 }
 
 static void rk3288_uart_tx_byte(unsigned char data)
diff --git a/src/soc/rockchip/rk3288/vop.c b/src/soc/rockchip/rk3288/vop.c
index 915d452..81fc41e 100644
--- a/src/soc/rockchip/rk3288/vop.c
+++ b/src/soc/rockchip/rk3288/vop.c
@@ -51,11 +51,11 @@
 	write32(&preg->win0_act_info,
 		V_ACT_WIDTH(hactive - 1) | V_ACT_HEIGHT(vactive - 1));
 
-	write32(&preg->win0_dsp_st,
-		V_DSP_XST(xpos + hsync_len + hback_porch) | V_DSP_YST(ypos + vsync_len + vback_porch));
+	write32(&preg->win0_dsp_st, V_DSP_XST(xpos + hsync_len + hback_porch) |
+				    V_DSP_YST(ypos + vsync_len + vback_porch));
 
-	write32(&preg->win0_dsp_info,
-		V_DSP_WIDTH(hactive - 1) | V_DSP_HEIGHT(vactive - 1));
+	write32(&preg->win0_dsp_info, V_DSP_WIDTH(hactive - 1) |
+				      V_DSP_HEIGHT(vactive - 1));
 
 	clrsetbits_le32(&preg->win0_color_key, M_WIN0_KEY_EN | M_WIN0_KEY_COLOR,
 						V_WIN0_KEY_EN(0) |
@@ -111,23 +111,27 @@
 	clrsetbits_le32(&preg->sys_ctrl, M_ALL_OUT_EN, V_EDP_OUT_EN(1));
 	clrsetbits_le32(&preg->dsp_ctrl0, M_DSP_OUT_MODE,
 					 V_DSP_OUT_MODE(15));
-	write32(&preg->dsp_htotal_hs_end,
-		V_HSYNC(hsync_len) | V_HORPRD(hsync_len + hback_porch + hactive + hfront_porch));
+	write32(&preg->dsp_htotal_hs_end, V_HSYNC(hsync_len) |
+		V_HORPRD(hsync_len + hback_porch + hactive + hfront_porch));
 
 	write32(&preg->dsp_hact_st_end,
-		V_HEAP(hsync_len + hback_porch + hactive) | V_HASP(hsync_len + hback_porch));
+		V_HEAP(hsync_len + hback_porch + hactive) |
+		V_HASP(hsync_len + hback_porch));
 
-	write32(&preg->dsp_vtotal_vs_end,
-		V_VSYNC(vsync_len) | V_VERPRD(vsync_len + vback_porch + vactive + vfront_porch));
+	write32(&preg->dsp_vtotal_vs_end, V_VSYNC(vsync_len) |
+		V_VERPRD(vsync_len + vback_porch + vactive + vfront_porch));
 
 	write32(&preg->dsp_vact_st_end,
-		V_VAEP(vsync_len + vback_porch + vactive) | V_VASP(vsync_len + vback_porch));
+		V_VAEP(vsync_len + vback_porch + vactive) |
+		V_VASP(vsync_len + vback_porch));
 
 	write32(&preg->post_dsp_hact_info,
-		V_HEAP(hsync_len + hback_porch + hactive) | V_HASP(hsync_len + hback_porch));
+		V_HEAP(hsync_len + hback_porch + hactive) |
+		V_HASP(hsync_len + hback_porch));
 
 	write32(&preg->post_dsp_vact_info,
-		V_VAEP(vsync_len + vback_porch + vactive) | V_VASP(vsync_len + vback_porch));
+		V_VAEP(vsync_len + vback_porch + vactive) |
+		V_VASP(vsync_len + vback_porch));
 
 	write32(&preg->reg_cfg_done, 0x01); /* enable reg config */
 }
diff --git a/src/soc/samsung/exynos5250/clock_init.c b/src/soc/samsung/exynos5250/clock_init.c
index 9cdd729..6f9614a 100644
--- a/src/soc/samsung/exynos5250/clock_init.c
+++ b/src/soc/samsung/exynos5250/clock_init.c
@@ -224,8 +224,8 @@
 		;
 
 	if (mem->use_bpll) {
-		write32(&exynos_clock->src_cdrex,
-			MUX_BPLL_SEL_MASK | MUX_MCLK_CDREX_SEL | MUX_MCLK_DPHY_SEL);
+		write32(&exynos_clock->src_cdrex, MUX_BPLL_SEL_MASK |
+			MUX_MCLK_CDREX_SEL | MUX_MCLK_DPHY_SEL);
 	} else {
 		write32(&exynos_clock->src_cdrex, CLK_REG_DISABLE);
 	}
diff --git a/src/soc/samsung/exynos5250/dmc_init_ddr3.c b/src/soc/samsung/exynos5250/dmc_init_ddr3.c
index 5a3cf3e..7bdbd6d 100644
--- a/src/soc/samsung/exynos5250/dmc_init_ddr3.c
+++ b/src/soc/samsung/exynos5250/dmc_init_ddr3.c
@@ -86,8 +86,9 @@
 	write32(&exynos_phy0_control->phy_con14, mem->phy0_pulld_dqs);
 	write32(&exynos_phy1_control->phy_con14, mem->phy1_pulld_dqs);
 
-	write32(&exynos_dmc->concontrol,
-		mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) | (mem->dfi_init_start << CONCONTROL_DFI_INIT_START_SHIFT));
+	write32(&exynos_dmc->concontrol, mem->concontrol |
+		(mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) |
+		(mem->dfi_init_start << CONCONTROL_DFI_INIT_START_SHIFT));
 
 	update_reset_dll(exynos_dmc, DDR_MODE_DDR3);
 
@@ -137,7 +138,8 @@
 
 	/* Power Down mode Configuration */
 	write32(&exynos_dmc->pwrdnconfig,
-		mem->dpwrdn_cyc << PWRDNCONFIG_DPWRDN_CYC_SHIFT | mem->dsref_cyc << PWRDNCONFIG_DSREF_CYC_SHIFT);
+		mem->dpwrdn_cyc << PWRDNCONFIG_DPWRDN_CYC_SHIFT |
+		mem->dsref_cyc << PWRDNCONFIG_DSREF_CYC_SHIFT);
 
 	/* TimingRow, TimingData, TimingPower and Timingaref
 	 * values as per Memory AC parameters
@@ -243,7 +245,8 @@
 	write32(&exynos_dmc->memcontrol, mem->memcontrol);
 
 	/* Set DMC Concontrol and enable auto-refresh counter */
-	write32(&exynos_dmc->concontrol,
-		mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT));
+	write32(&exynos_dmc->concontrol, mem->concontrol |
+		(mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) |
+		(mem->aref_en << CONCONTROL_AREF_EN_SHIFT));
 	return 0;
 }
diff --git a/src/soc/samsung/exynos5250/usb.c b/src/soc/samsung/exynos5250/usb.c
index 3f68336..2dca58e 100644
--- a/src/soc/samsung/exynos5250/usb.c
+++ b/src/soc/samsung/exynos5250/usb.c
@@ -52,12 +52,22 @@
 	/* Set relevant registers to default values (clearing all reset bits) */
 
 	write32(&dwc3->usb3pipectl,
-		0x1 << 24 | 0x4 << 19 | 0x1 << 18 | 0x1 << 17 | 0x1 << 1 | 0);
+		0x1 << 24 |	/* activate PHY low power states */
+		0x4 << 19 |	/* low power delay value */
+		0x1 << 18 |	/* activate PHY low power delay */
+		0x1 << 17 |	/* enable SuperSpeed PHY suspend */
+		0x1 <<  1);	/* default Tx deemphasis value */
 
 	/* Configure PHY clock turnaround for 8-bit UTMI+, disable suspend */
-	write32(&dwc3->usb2phycfg, 0x9 << 10 | 0x1 << 8 | 0x1 << 6 | 0);
+	write32(&dwc3->usb2phycfg,
+		0x9 << 10 |	/* PHY clock turnaround for 8-bit UTMI+ */
+		0x1 <<  8 |	/* enable PHY sleep in L1 */
+		0x1 <<  6);	/* enable PHY suspend */
 
-	write32(&dwc3->ctl, 0x5dc << 19 | 0x1 << 16 | 0x1 << 12 | 0);
+	write32(&dwc3->ctl,
+		0x5dc << 19 |	/* suspend clock scale for 24MHz */
+		0x1 << 16 |	/* retry SS three times (bugfix from U-Boot) */
+		0x1 << 12);	/* port capability HOST */
 }
 
 void setup_usb_drd_dwc3()
@@ -77,13 +87,32 @@
 	write32(&phy->utmi, 1 << 6);
 
 	write32(&phy->clkrst,
-		0x88 << 23 | 0x1 << 20 | 0x1 << 19 | 0x68 << 11 | 0x5 << 5 | 0x1 << 4 | 0x3 << 2 | 0x1 << 1 | 0x1 << 0 | 0);
+		0x88 << 23 |	/* spread spectrum refclk selector */
+		 0x1 << 20 |	/* enable spread spectrum */
+		 0x1 << 19 |	/* enable prescaler refclk */
+		 0x68 << 11 |	/* multiplier for 24MHz refclk */
+		 0x5 <<  5 |	/* select 24MHz refclk (weird, from U-Boot) */
+		 0x1 <<  4 |	/* power supply in normal operating mode */
+		 0x3 <<  2 |	/* use external refclk (undocumented on 5420?)*/
+		 0x1 <<  1 |	/* force port reset */
+		 0x1 <<  0);	/* normal operating mode */
 
 	write32(&phy->param0,
-		0x9 << 26 | 0x3 << 22 | 0x1 << 20 | 0x1 << 18 | 0x3 << 13 | 0x3 << 9 | 0x3 << 6 | 0x4 << 3 | 0x4 << 0 | 0);
+		0x9 << 26 |	/* LOS level */
+		0x3 << 22 |	/* TX VREF tune */
+		0x1 << 20 |	/* TX rise tune */
+		0x1 << 18 |	/* TX res tune */
+		0x3 << 13 |	/* TX HS X Vtune */
+		0x3 <<  9 |	/* TX FS/LS tune */
+		0x3 <<  6 |	/* SQRX tune */
+		0x4 <<  3 |	/* OTG tune */
+		0x4 <<  0);	/* comp disc tune */
 
 	write32(&phy->param1,
-		0x7f << 19 | 0x7f << 12 | 0x20 << 6 | 0x1c << 0 | 0);
+		0x7f << 19 |	/* reserved */
+		0x7f << 12 |	/* Tx launch amplitude */
+		0x20 <<  6 |	/* Tx deemphasis 6dB */
+		0x1c <<  0);	/* Tx deemphasis 3.5dB (value from U-Boot) */
 
 	/* disable all test features */
 	write32(&phy->test, 0);
diff --git a/src/soc/samsung/exynos5420/dmc_init_ddr3.c b/src/soc/samsung/exynos5420/dmc_init_ddr3.c
index 6972618..5eeb07b 100644
--- a/src/soc/samsung/exynos5420/dmc_init_ddr3.c
+++ b/src/soc/samsung/exynos5420/dmc_init_ddr3.c
@@ -111,10 +111,12 @@
 	write32(&exynos_drex0->phycontrol0, val);
 	write32(&exynos_drex1->phycontrol0, val);
 
-	write32(&exynos_drex0->concontrol,
-		mem->concontrol | (mem->dfi_init_start << CONCONTROL_DFI_INIT_START_SHIFT) | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT));
-	write32(&exynos_drex1->concontrol,
-		mem->concontrol | (mem->dfi_init_start << CONCONTROL_DFI_INIT_START_SHIFT) | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT));
+	write32(&exynos_drex0->concontrol, mem->concontrol |
+		(mem->dfi_init_start << CONCONTROL_DFI_INIT_START_SHIFT) |
+		(mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT));
+	write32(&exynos_drex1->concontrol, mem->concontrol |
+		(mem->dfi_init_start << CONCONTROL_DFI_INIT_START_SHIFT) |
+		(mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT));
 
 	do {
 		val = read32(&exynos_drex0->phystatus);
@@ -198,9 +200,11 @@
 		for (i = 0; i < 128; i++) {
 			for (chip = 0; chip < mem->chips_to_configure; chip++) {
 				write32(&exynos_drex0->directcmd,
-					DIRECT_CMD_REFA | (chip << DIRECT_CMD_CHIP_SHIFT));
+					DIRECT_CMD_REFA |
+					(chip << DIRECT_CMD_CHIP_SHIFT));
 				write32(&exynos_drex1->directcmd,
-					DIRECT_CMD_REFA | (chip << DIRECT_CMD_CHIP_SHIFT));
+					DIRECT_CMD_REFA |
+					(chip << DIRECT_CMD_CHIP_SHIFT));
 			}
 		}
 	}
@@ -324,10 +328,14 @@
 	 * read data fetch cycles and enable DREX auto set powerdown
 	 * for input buffer of I/O in none read memory state.
 	 */
-	write32(&exynos_drex0->concontrol,
-		mem->concontrol | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT) | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) | DMC_CONCONTROL_IO_PD_CON(0x2));
-	write32(&exynos_drex1->concontrol,
-		mem->concontrol | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT) | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) | DMC_CONCONTROL_IO_PD_CON(0x2));
+	write32(&exynos_drex0->concontrol, mem->concontrol |
+		(mem->aref_en << CONCONTROL_AREF_EN_SHIFT) |
+		(mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) |
+		DMC_CONCONTROL_IO_PD_CON(0x2));
+	write32(&exynos_drex1->concontrol, mem->concontrol |
+		(mem->aref_en << CONCONTROL_AREF_EN_SHIFT) |
+		(mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT) |
+		DMC_CONCONTROL_IO_PD_CON(0x2));
 
 	/* Enable Clock Gating Control for DMC
 	 * this saves around 25 mw dmc power as compared to the power
diff --git a/src/soc/samsung/exynos5420/usb.c b/src/soc/samsung/exynos5420/usb.c
index 9313fea..c786223 100644
--- a/src/soc/samsung/exynos5420/usb.c
+++ b/src/soc/samsung/exynos5420/usb.c
@@ -58,12 +58,22 @@
 	/* Set relevant registers to default values (clearing all reset bits) */
 
 	write32(&dwc3->usb3pipectl,
-		0x1 << 24 | 0x4 << 19 | 0x1 << 18 | 0x1 << 17 | 0x1 << 1 | 0);
+		0x1 << 24 |	/* activate PHY low power states */
+		0x4 << 19 |	/* low power delay value */
+		0x1 << 18 |	/* activate PHY low power delay */
+		0x1 << 17 |	/* enable SuperSpeed PHY suspend */
+		0x1 <<  1);	/* default Tx deemphasis value */
 
 	/* Configure PHY clock turnaround for 8-bit UTMI+, disable suspend */
-	write32(&dwc3->usb2phycfg, 0x9 << 10 | 0x1 << 8 | 0x1 << 6 | 0);
+	write32(&dwc3->usb2phycfg,
+		0x9 << 10 |	/* PHY clock turnaround for 8-bit UTMI+ */
+		0x1 <<  8 |	/* enable PHY sleep in L1 */
+		0x1 <<  6);	/* enable PHY suspend */
 
-	write32(&dwc3->ctl, 0x5dc << 19 | 0x1 << 16 | 0x1 << 12 | 0);
+	write32(&dwc3->ctl,
+		0x5dc << 19 |	/* suspend clock scale for 24MHz */
+		0x1 << 16 |	/* retry SS three times (bugfix from U-Boot) */
+		0x1 << 12);	/* port capability HOST */
 }
 
 void setup_usb_drd0_dwc3()
@@ -89,13 +99,32 @@
 	write32(&phy->utmi, 1 << 6);
 
 	write32(&phy->clkrst,
-		0x88 << 23 | 0x1 << 20 | 0x1 << 19 | 0x68 << 11 | 0x5 << 5 | 0x1 << 4 | 0x3 << 2 | 0x1 << 1 | 0x1 << 0 | 0);
+		0x88 << 23 |	/* spread spectrum refclk selector */
+		0x1 << 20 |	/* enable spread spectrum */
+		0x1 << 19 |	/* enable prescaler refclk */
+		0x68 << 11 |	/* multiplier for 24MHz refclk */
+		0x5 <<  5 |	/* select 24MHz refclk (weird, from U-Boot) */
+		0x1 <<  4 |	/* power supply in normal operating mode */
+		0x3 <<  2 |	/* use external refclk (undocumented on 5420?)*/
+		0x1 <<  1 |	/* force port reset */
+		0x1 <<  0);	/* normal operating mode */
 
 	write32(&phy->param0,
-		0x9 << 26 | 0x3 << 22 | 0x1 << 20 | 0x1 << 18 | 0x3 << 13 | 0x3 << 9 | 0x3 << 6 | 0x4 << 3 | 0x4 << 0 | 0);
+		0x9 << 26 |	/* LOS level */
+		0x3 << 22 |	/* TX VREF tune */
+		0x1 << 20 |	/* TX rise tune */
+		0x1 << 18 |	/* TX res tune */
+		0x3 << 13 |	/* TX HS X Vtune */
+		0x3 << 9 |	/* TX FS/LS tune */
+		0x3 << 6 |	/* SQRX tune */
+		0x4 << 3 |	/* OTG tune */
+		0x4 << 0);	/* comp disc tune */
 
 	write32(&phy->param1,
-		0x7f << 19 | 0x7f << 12 | 0x20 << 6 | 0x1c << 0 | 0);
+		0x7f << 19 |	/* reserved */
+		0x7f << 12 |	/* Tx launch amplitude */
+		0x20 <<  6 |	/* Tx deemphasis 6dB */
+		0x1c <<  0);	/* Tx deemphasis 3.5dB (value from U-Boot) */
 
 	/* disable all test features */
 	write32(&phy->test, 0);