Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "These are updates for platform specific code on 32-bit ARM machines,
  essentially anything that can not (yet) be expressed using DT files.

  Noteworthy changes include:

   - Added support for the TI DRA71x family of SoCs in mach-omap2, this
     is an new variant of the the DRA72x/DRA74x automotive infotainment
     chips we already supported for a while.

   - Added support for the ST STM32F746 SoC, the first Cortex-M7 based
     microcontroller we support, related to the smaller STM32F4 family.

   - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see
     http://elinux.org/RZ-G

   - SMP is now supported on the OX820 platform

   - A lot of code in mach-omap2 gets removed as a follow-up to removing
     support for board files in the previous release

   - Davinci has some new work to improve USB support

   - For i.MX, the performance monitor now supports profiling the memory
     controller using 'perf'"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits)
  ARM: davinci: da830-evm: use gpio descriptor for mmc pins
  ARM: davinci: da850-evm: use gpio descriptor for mmc pins
  ARM: davinci: hawk: use gpio descriptor for mmc pins
  ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6
  ARM: davinci: da8xx: Fix ohci device name
  ARM: oxnas: Add OX820 config and makefile entry
  ARM: oxnas: Add OX820 SMP support
  ARM: davinci: PM: fix build when da850 not compiled in
  ARM: orion5x: remove legacy support of ls-chl
  ARM: integrator: drop EBI access use syscon
  ARM: BCM5301X: Add back handler ignoring external imprecise aborts
  ARM: davinci: PM: support da8xx DT platforms
  ARM: davinci: PM: cleanup: remove references to pdata
  ARM: davinci: PM: rework init, remove platform device
  ARM: Kconfig: Introduce MACH_STM32F746 flag
  ARM: mach-stm32: Add a new SOC - STM32F746
  ARM: shmobile: document SK-RZG1E board
  ARM: shmobile: r8a7745: basic SoC support
  ARM: imx: mach-imx6ul: add imx6ull support
  ARM: zynq: Reserve correct amount of non-DMA RAM
  ...

1 files changed, 30 insertions, 24 deletions

diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index 23b98fd414bf..a1af634f8709 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -27,6 +27,8 @@
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/termios.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -37,11 +39,8 @@
 #include "pci_v3.h"
 #include "lm.h"
 
-/* Base address to the AP system controller */
-void __iomem *ap_syscon_base;
-/* Base address to the external bus interface */
-static void __iomem *ebi_base;
-
+/* Regmap to the AP system controller */
+static struct regmap *ap_syscon_map;
 
 /*
  * All IO addresses are mapped onto VA 0xFFFx.xxxx, where x.xxxx
@@ -125,6 +124,7 @@ static void integrator_uart_set_mctrl(struct amba_device *dev,
 {
 	unsigned int ctrls = 0, ctrlc = 0, rts_mask, dtr_mask;
 	u32 phybase = dev->res.start;
+	int ret;
 
 	if (phybase == INTEGRATOR_UART0_BASE) {
 		/* UART0 */
@@ -146,8 +146,17 @@ static void integrator_uart_set_mctrl(struct amba_device *dev,
 	else
 		ctrls |= dtr_mask;
 
-	__raw_writel(ctrls, ap_syscon_base + INTEGRATOR_SC_CTRLS_OFFSET);
-	__raw_writel(ctrlc, ap_syscon_base + INTEGRATOR_SC_CTRLC_OFFSET);
+	ret = regmap_write(ap_syscon_map,
+			   INTEGRATOR_SC_CTRLS_OFFSET,
+			   ctrls);
+	if (ret)
+		pr_err("MODEM: unable to write PL010 UART CTRLS\n");
+
+	ret = regmap_write(ap_syscon_map,
+			   INTEGRATOR_SC_CTRLC_OFFSET,
+			   ctrlc);
+	if (ret)
+		pr_err("MODEM: unable to write PL010 UART CRTLC\n");
 }
 
 struct amba_pl010_data ap_uart_data = {
@@ -178,35 +187,32 @@ static const struct of_device_id ap_syscon_match[] = {
 	{ },
 };
 
-static const struct of_device_id ebi_match[] = {
-	{ .compatible = "arm,external-bus-interface"},
-	{ },
-};
-
 static void __init ap_init_of(void)
 {
-	unsigned long sc_dec;
+	u32 sc_dec;
 	struct device_node *syscon;
-	struct device_node *ebi;
+	int ret;
 	int i;
 
+	of_platform_default_populate(NULL, ap_auxdata_lookup, NULL);
+
 	syscon = of_find_matching_node(NULL, ap_syscon_match);
 	if (!syscon)
 		return;
-	ebi = of_find_matching_node(NULL, ebi_match);
-	if (!ebi)
+	ap_syscon_map = syscon_node_to_regmap(syscon);
+	if (IS_ERR(ap_syscon_map)) {
+		pr_crit("could not find Integrator/AP system controller\n");
 		return;
+	}
 
-	ap_syscon_base = of_iomap(syscon, 0);
-	if (!ap_syscon_base)
-		return;
-	ebi_base = of_iomap(ebi, 0);
-	if (!ebi_base)
+	ret = regmap_read(ap_syscon_map,
+			  INTEGRATOR_SC_DEC_OFFSET,
+			  &sc_dec);
+	if (ret) {
+		pr_crit("could not read from Integrator/AP syscon\n");
 		return;
+	}
 
-	of_platform_default_populate(NULL, ap_auxdata_lookup, NULL);
-
-	sc_dec = readl(ap_syscon_base + INTEGRATOR_SC_DEC_OFFSET);
 	for (i = 0; i < 4; i++) {
 		struct lm_device *lmdev;