Add qca_gpio_init.S file with lowlevel initialization of GPIO, for platforms based...

diff --git a/u-boot/cpu/mips/ar7240/Makefile b/u-boot/cpu/mips/ar7240/Makefile
index 350f49a8f6b32e4e2e0e1da5d495095649b1be30..63ff167898337cfdf5b452f63d656604b7b59751 100644 (file)
--- a/u-boot/cpu/mips/ar7240/Makefile
+++ b/u-boot/cpu/mips/ar7240/Makefile
@@ -3,13 +3,17 @@ include $(TOPDIR)/config.mk
 LIB    = lib$(SOC).a
 
 START  =
+OBJS   =
+SOBJS  =
 
-OBJS   =  meminit.o
+OBJS   += meminit.o
 OBJS   += qca_common.o
 OBJS   += qca_clocks.o
+SOBJS  += qca_gpio_init.o
 
 ifeq ($(BOARD), ap121)
        OBJS    += qca_hs_uart.o
+       OBJS    += ag7240.o
        SOBJS   += hornet_ddr_init.o
 else
        OBJS    += qca_ls_uart.o
@@ -17,12 +21,8 @@ endif
 
 ifeq ($(BOARD), db12x)
        OBJS    += ag934x.o
-else
-       OBJS    += ag7240.o
 endif
 
-SOBJS  +=
-
 all:   .depend $(START) $(LIB)
 
 $(LIB):        $(OBJS) $(SOBJS) $(OBJS-0)

diff --git a/u-boot/cpu/mips/ar7240/qca_gpio_init.S b/u-boot/cpu/mips/ar7240/qca_gpio_init.S
new file mode 100644 (file)
index 0000000..96ea76b
--- /dev/null
+++ b/u-boot/cpu/mips/ar7240/qca_gpio_init.S
@@ -0,0 +1,344 @@
+/*
+ * This file contains code used for lowlevel initialization
+ * of GPIO, on supported Qualcomm/Atheros platforms
+ *
+ * Copyright (C) 2015 Piotr Dymacz <piotr@dymacz.pl>
+ *
+ * SPDX-License-Identifier:GPL-2.0
+ */
+
+#include <config.h>
+#include <version.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <soc/qca_soc_common.h>
+
+.globl lowlevel_gpio_init
+.ent   lowlevel_gpio_init
+
+lowlevel_gpio_init:
+
+/*
+ * JTAG and UART init
+ */
+#if (SOC_TYPE & QCA_AR934X_SOC)  || \
+       (SOC_TYPE & QCA_QCA955X_SOC) || \
+       (SOC_TYPE & QCA_QCA953X_SOC)
+       /*
+        * Disable JTAG (bit 1 set) and ALL clock observation (bit 2~9 reset)
+        * Do not do this in RAM version!
+        */
+       li t8, QCA_GPIO_FUNC_REG
+
+  #ifndef CONFIG_SKIP_LOWLEVEL_INIT
+       li t9, QCA_GPIO_FUNC_JTAG_DIS_MASK
+  #else
+       li t9, 0x0
+  #endif
+       sw t9, 0(t8)
+
+       /*
+        * Setup GPIOs for LS UART:
+        * - TX: GPIO10
+        * - RX: GPIO9
+        *
+        * TODO:
+        * - allow select LS or HS UART on platforms which support both
+        * - allow select other than default GPIOs for LS/HS UART pins
+        */
+
+       /* GPIO10 as output, GPIO9 as input */
+       li  t8, QCA_GPIO_OE_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~GPIO10
+       or  t9, t9, GPIO9
+       sw  t9, 0(t8)
+
+       /* Set LSUART_TXD on GPIO10 */
+       li  t8, QCA_GPIO_OUT_FUNC2_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~QCA_GPIO_OUT_FUNCX_GPIO10_EN_MASK
+       or  t9, t9, (QCA_GPIO_OUT_MUX_LSUART_TXD_VAL << \
+                                QCA_GPIO_OUT_FUNCX_GPIO10_EN_SHIFT)
+       sw  t9, 0(t8)
+
+       /* Set LSUART_RXD on GPIO9 */
+       li  t8, QCA_GPIO_IN_EN0_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~QCA_GPIO_IN_EN0_LSUART_RXD_MASK
+       or  t9, t9, (9 << QCA_GPIO_IN_EN0_LSUART_RXD_SHIFT)
+       sw  t9, 0(t8)
+#endif
+
+/*
+ * General configuration of GPIO (buttons, LEDs, default value, etc.)
+ */
+#if defined(CONFIG_FOR_TPLINK_WDR3600_WDR43X0_V1)
+       /*
+        * LEDs and buttons GPIOs on WDR3600/WDR43x0 v1:
+        *
+        * 11 => USB1 LED
+        * 12 => USB2 LED
+        * 13 => WLAN2G
+        * 14 => SYS
+        * 15 => QSS
+        * 21 => USB2 POWER (active high)
+        * 22 => USB1 POWER (active high)
+        *
+        * 16 => Reset button
+        * 17 => Wi-Fi ON/OFF switch
+        *
+        * All OUT GPIOs are active LOW if not stated otherwise
+        */
+
+       /* GPIO Init */
+       li  t8, QCA_GPIO_OE_REG
+       lw  t9, 0(t8)
+       /* Set GPIOs 11~15 and 21~22 as outputs */
+       and t9, t9, ~(GPIO11 | GPIO12 | GPIO13 | \
+                                 GPIO14 | GPIO15 | GPIO21 | GPIO22)
+       /* Set GPIOs 16~17 as inputs */
+       or  t9, t9, (GPIO16 | GPIO17)
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIO 11 */
+       li  t8, QCA_GPIO_OUT_FUNC2_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~(QCA_GPIO_OUT_FUNCX_GPIO11_EN_MASK)
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIOs 12~15 */
+       li  t8, QCA_GPIO_OUT_FUNC3_REG
+       li  t9, 0x0
+       sw  t9, 0(t8)
+
+       /* Turn on all LEDS and power on both USB */
+       li  t8, QCA_GPIO_SET_REG
+       li  t9, (GPIO21 | GPIO22)
+       sw  t9, 0(t8)
+
+       /* Wait for a while, for LEDs bootup blink */
+       li  t8, 0
+       li  t9, 0x70000
+
+1:
+       addi t8, t8, 1
+       bne  t8, t9, 1b
+       nop
+
+       /* Turn off all LEDs */
+       li  t8, QCA_GPIO_SET_REG
+       li  t9, (GPIO11 | GPIO12 | GPIO13 | \
+                        GPIO14 | GPIO15 | GPIO21 | GPIO22)
+       sw  t9, 0(t8)
+
+#elif defined(CONFIG_FOR_TPLINK_WDR3500_V1)
+       /*
+        * LEDs and buttons GPIOs on WDR3500 v1:
+        *
+        * 11 => USB LED
+        * 12 => USB POWER (active high)
+        * 13 => WLAN2G
+        * 14 => SYS
+        * 15 => QSS
+        * 18 => WAN
+        * 19 => LAN1
+        * 20 => LAN2
+        * 21 => LAN3
+        * 22 => LAN4
+        *
+        * 16 => Reset button
+        * 17 => Wi-Fi ON/OFF switch
+        *
+        * All OUT GPIOs are active LOW if not stated otherwise
+        */
+
+       /* GPIO Init */
+       li  t8, QCA_GPIO_OE_REG
+       lw  t9, 0(t8)
+       /* Set GPIOs 11~15 and 18~22 as outputs */
+       and t9, t9, ~(GPIO11 | GPIO12 | GPIO13 | GPIO14 | GPIO15 | \
+                                 GPIO18 | GPIO19 | GPIO20 | GPIO21 | GPIO22)
+       /* Set GPIOs 16~17 as inputs */
+       or  t9, t9, (GPIO16 | GPIO17)
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIO 11 */
+       li  t8, QCA_GPIO_OUT_FUNC2_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~(QCA_GPIO_OUT_FUNCX_GPIO11_EN_MASK)
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIOs 12~15 */
+       li  t8, QCA_GPIO_OUT_FUNC3_REG
+       li  t9, 0x0
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIOs 18~19 */
+       li  t8, QCA_GPIO_OUT_FUNC4_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~(QCA_GPIO_OUT_FUNCX_GPIO18_EN_MASK | \
+                                 QCA_GPIO_OUT_FUNCX_GPIO19_EN_MASK)
+       sw  t9, 0(t8)
+
+       /* Turn off all LEDs and turn on power on USB */
+       li  t8, QCA_GPIO_SET_REG
+       li  t9, (GPIO11 | GPIO12 | GPIO13 | GPIO14 | GPIO15 | \
+                        GPIO18 | GPIO19 | GPIO20 | GPIO21 | GPIO22)
+       sw  t9, 0(t8)
+
+#elif defined(CONFIG_FOR_TPLINK_WR841N_V8)
+       /*
+        * LEDs and buttons GPIOs on WR841N/D v8:
+        *
+        * 12 => LAN4
+        * 13 => WLAN
+        * 14 => SYS
+        * 15 => QSS
+        * 18 => WAN
+        * 19 => LAN1
+        * 20 => LAN2
+        * 21 => LAN3
+        *
+        * 16 => Wi-Fi ON/OFF switch
+        * 17 => Reset button
+        *
+        * All OUT GPIOs are active LOW if not stated otherwise
+        */
+
+       /* GPIOs init */
+       li  t8, QCA_GPIO_OE_REG
+       lw  t9, 0(t8)
+       /* Set GPIOs 12~15 and 18~21 as outputs */
+       and t9, t9, ~(GPIO12 | GPIO13 | GPIO14 | GPIO15 | \
+                                 GPIO18 | GPIO19 | GPIO20 | GPIO21)
+       /* Set GPIOs 16~17 as inputs */
+       or  t9, t9, (GPIO16 | GPIO17)
+       sw  t9, 0(t8)
+
+       /* Set gpio function for GPIOs 12~15 */
+       li  t8, QCA_GPIO_OUT_FUNC3_REG
+       li  t9, 0x0
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIOs 18~19 */
+       li  t8, QCA_GPIO_OUT_FUNC4_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~(QCA_GPIO_OUT_FUNCX_GPIO18_EN_MASK | \
+                                 QCA_GPIO_OUT_FUNCX_GPIO19_EN_MASK)
+       sw  t9, 0(t8)
+
+       /* Turn off all LEDs */
+       li  t8, QCA_GPIO_SET_REG
+       li  t9, (GPIO12 | GPIO13 | GPIO14 | GPIO15 | \
+                        GPIO18 | GPIO19 | GPIO20 | GPIO21)
+       sw  t9, 0(t8)
+
+#elif defined(CONFIG_FOR_TPLINK_MR3420_V2)
+       /*
+        * LEDs and buttons GPIOs on MR3420 v2:
+        *
+        * 4  => USB Power (active high)
+        * 11 => USB/3G LED
+        * 12 => LAN4
+        * 13 => WLAN
+        * 14 => SYS
+        * 15 => QSS
+        * 18 => WAN
+        * 19 => LAN1
+        * 20 => LAN2
+        * 21 => LAN3
+        *
+        * 16 => WPS button
+        * 17 => Reset button
+        *
+        * All OUT GPIOs are active LOW if not stated otherwise
+        */
+
+       /* GPIOs init */
+       li  t8, QCA_GPIO_OE_REG
+       lw  t9, 0(t8)
+       /* Set GPIOs 4, 11~15 and 18~21 as outputs */
+       and t9, t9, ~(GPIO4  | GPIO11 | GPIO12 | GPIO13 | GPIO14 | \
+                                 GPIO15 | GPIO18 | GPIO19 | GPIO20 | GPIO21)
+       /* Set GPIOs 16~17 as inputs */
+       or  t9, t9, (GPIO16 | GPIO17)
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIO 4 */
+       li  t8, QCA_GPIO_OUT_FUNC1_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~(QCA_GPIO_OUT_FUNCX_GPIO4_EN_MASK)
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIO 11 */
+       li  t8, QCA_GPIO_OUT_FUNC2_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~(QCA_GPIO_OUT_FUNCX_GPIO11_EN_MASK)
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIOs 12~15 */
+       li  t8, QCA_GPIO_OUT_FUNC3_REG
+       li  t9, 0x0
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIOs 18~19 */
+       li  t8, QCA_GPIO_OUT_FUNC4_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~(QCA_GPIO_OUT_FUNCX_GPIO18_EN_MASK | \
+                                 QCA_GPIO_OUT_FUNCX_GPIO19_EN_MASK)
+       sw  t9, 0(t8)
+
+       /* Turn off all LEDs and turn on power on USB */
+       li  t8, QCA_GPIO_SET_REG
+       li  t9, (GPIO4  | GPIO11 | GPIO12 | GPIO13 | GPIO14 | \
+                        GPIO15 | GPIO18 | GPIO19 | GPIO20 | GPIO21)
+       sw  t9, 0(t8)
+
+#elif defined(CONFIG_FOR_TPLINK_WA830RE_V2_WA801ND_V2)
+       /*
+        * LEDs and buttons GPIOs on WA830REv2 and WA801ND v2:
+        *
+        * 13 => WLAN
+        * 14 => SYS
+        * 15 => QSS
+        * 18 => LAN
+        *
+        * 16 => Range Extender
+        * 17 => Reset button
+        *
+        * All OUT GPIOs are active LOW if not stated otherwise
+        */
+
+       /* GPIOs init */
+       li  t8, QCA_GPIO_OE_REG
+       lw  t9, 0(t8)
+       /* Set GPIOs 13~15 and 18 as outputs */
+       and t9, t9, ~(GPIO13 | GPIO14 | GPIO15 | GPIO18)
+       /* Set GPIOs 16~17 as inputs */
+       or  t9, t9, (GPIO16 | GPIO17)
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIOs 13~15 */
+       li  t8, QCA_GPIO_OUT_FUNC3_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~(QCA_GPIO_OUT_FUNCX_GPIO13_EN_MASK | \
+                                 QCA_GPIO_OUT_FUNCX_GPIO14_EN_MASK | \
+                                 QCA_GPIO_OUT_FUNCX_GPIO15_EN_MASK)
+       sw  t9, 0(t8)
+
+       /* Set GPIO function for GPIO 18 */
+       li  t8, QCA_GPIO_OUT_FUNC4_REG
+       lw  t9, 0(t8)
+       and t9, t9, ~(QCA_GPIO_OUT_FUNCX_GPIO18_EN_MASK)
+       sw  t9, 0(t8)
+
+       /* Turn off all LEDs */
+       li  t8, QCA_GPIO_SET_REG
+       li  t9, (GPIO13 | GPIO14 | GPIO15 | GPIO18)
+       sw  t9, 0(t8)
+#endif
+
+       j ra
+       .end lowlevel_gpio_init