ramips: pinmux fixes

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36247 3c298f89-4303-0410-b956-a3cf2f4a3e73

5 files changed, 185 insertions, 0 deletions

diff --git a/target/linux/ramips/patches-3.8/0123-MIPS-ralink-fix-uartmux-group-handling.patch b/target/linux/ramips/patches-3.8/0123-MIPS-ralink-fix-uartmux-group-handling.patch
new file mode 100644
index 000000000..dee504fe5
--- /dev/null
+++ b/target/linux/ramips/patches-3.8/0123-MIPS-ralink-fix-uartmux-group-handling.patch
@@ -0,0 +1,40 @@
+From 34a9a634432a95d8ae9af86d41fdaf32fb039c2c Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Wed, 27 Mar 2013 21:10:14 +0100
+Subject: [PATCH 1/5] MIPS: ralink: fix uartmux group handling
+
+ * don't try get 'ralink,uartmux' porperty if the pinmux.uart is
+   not initialized,
+ * don't touch 'mode' value if mux mask is zero
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ arch/mips/ralink/pinmux.c |   12 ++++++++----
+ 1 file changed, 8 insertions(+), 4 deletions(-)
+
+--- a/arch/mips/ralink/pinmux.c
++++ b/arch/mips/ralink/pinmux.c
+@@ -56,15 +56,19 @@ void ralink_pinmux(void)
+ 		}
+ 	}
+ 
+-	of_property_read_string(np, "ralink,uartmux", &uart);
++	uart = NULL;
++	if (rt_pinmux.uart)
++		of_property_read_string(np, "ralink,uartmux", &uart);
++
+ 	if (uart) {
+ 		int m = ralink_mux_mask(uart, rt_pinmux.uart);
+-		mode |= rt_pinmux.uart_mask << rt_pinmux.uart_shift;
++
+ 		if (m) {
+-			mode &= ~(m << rt_pinmux.uart_shift);
++			mode &= ~(rt_pinmux.uart_mask << rt_pinmux.uart_shift);
++			mode |= m << rt_pinmux.uart_shift;
+ 			pr_debug("pinmux: registered uartmux \"%s\"\n", uart);
+ 		} else {
+-			pr_debug("pinmux: registered uartmux \"gpio\"\n");
++			pr_debug("pinmux: unknown uartmux \"%s\"\n", uart);
+ 		}
+ 	}
+ 
diff --git a/target/linux/ramips/patches-3.8/0124-MIPS-ralink-add-pci-group-to-struct-ralink_pinmux.patch b/target/linux/ramips/patches-3.8/0124-MIPS-ralink-add-pci-group-to-struct-ralink_pinmux.patch
new file mode 100644
index 000000000..32747e1a1
--- /dev/null
+++ b/target/linux/ramips/patches-3.8/0124-MIPS-ralink-add-pci-group-to-struct-ralink_pinmux.patch
@@ -0,0 +1,24 @@
+From 8818e2d260e7f98fd5388f9ba56f54b788e175f0 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Wed, 27 Mar 2013 20:42:18 +0100
+Subject: [PATCH 2/5] MIPS: ralink: add pci group to struct ralink_pinmux
+
+This will be used for RT3662/RT3883.
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ arch/mips/ralink/common.h |    3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/arch/mips/ralink/common.h
++++ b/arch/mips/ralink/common.h
+@@ -24,6 +24,9 @@ struct ralink_pinmux {
+ 	int uart_shift;
+ 	u32 uart_mask;
+ 	void (*wdt_reset)(void);
++	struct ralink_pinmux_grp *pci;
++	int pci_shift;
++	u32 pci_mask;
+ };
+ extern struct ralink_pinmux rt_pinmux;
+ 
diff --git a/target/linux/ramips/patches-3.8/0125-MIPS-ralink-process-PCI-pinmux-group.patch b/target/linux/ramips/patches-3.8/0125-MIPS-ralink-process-PCI-pinmux-group.patch
new file mode 100644
index 000000000..08cd2428f
--- /dev/null
+++ b/target/linux/ramips/patches-3.8/0125-MIPS-ralink-process-PCI-pinmux-group.patch
@@ -0,0 +1,39 @@
+From fe26f3e7d1329fc2a5ac14808dbecb7d324d0a41 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Wed, 27 Mar 2013 20:56:22 +0100
+Subject: [PATCH 3/5] MIPS: ralink: process PCI pinmux group
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ arch/mips/ralink/pinmux.c |   14 +++++++++++++-
+ 1 file changed, 13 insertions(+), 1 deletion(-)
+
+--- a/arch/mips/ralink/pinmux.c
++++ b/arch/mips/ralink/pinmux.c
+@@ -29,7 +29,7 @@ void ralink_pinmux(void)
+ 	const __be32 *wdt;
+ 	struct device_node *np;
+ 	struct property *prop;
+-	const char *uart, *pin;
++	const char *uart, *pci, *pin;
+ 	u32 mode = 0;
+ 
+ 	np = of_find_compatible_node(NULL, NULL, "ralink,rt3050-sysc");
+@@ -76,5 +76,17 @@ void ralink_pinmux(void)
+ 	if (wdt && *wdt && rt_pinmux.wdt_reset)
+ 		rt_pinmux.wdt_reset();
+ 
++	of_property_read_string(np, "ralink,pcimux", &pci);
++	if (pci) {
++		int m = ralink_mux_mask(pci, rt_pinmux.pci);
++		mode &= ~(rt_pinmux.pci_mask << rt_pinmux.pci_shift);
++		if (m) {
++			mode |= (m << rt_pinmux.pci_shift);
++			pr_debug("pinmux: registered pcimux \"%s\"\n", pci);
++		} else {
++			pr_debug("pinmux: registered pcimux \"gpio\"\n");
++		}
++	}
++
+ 	rt_sysc_w32(mode, SYSC_REG_GPIO_MODE);
+ }
diff --git a/target/linux/ramips/patches-3.8/0126-MIPS-ralink-add-PCI-pinmux-group-for-RT3883.patch b/target/linux/ramips/patches-3.8/0126-MIPS-ralink-add-PCI-pinmux-group-for-RT3883.patch
new file mode 100644
index 000000000..6f0b1c1aa
--- /dev/null
+++ b/target/linux/ramips/patches-3.8/0126-MIPS-ralink-add-PCI-pinmux-group-for-RT3883.patch
@@ -0,0 +1,58 @@
+From 2c868d77c161ce7dea8facf203c155924d776c33 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Wed, 27 Mar 2013 20:50:40 +0100
+Subject: [PATCH 4/5] MIPS: ralink: add PCI pinmux group for RT3883
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ arch/mips/ralink/rt3883.c |   32 ++++++++++++++++++++++++++++++++
+ 1 file changed, 32 insertions(+)
+
+--- a/arch/mips/ralink/rt3883.c
++++ b/arch/mips/ralink/rt3883.c
+@@ -113,6 +113,35 @@ struct ralink_pinmux_grp uart_mux[] = {
+ 	}, {0}
+ };
+ 
++struct ralink_pinmux_grp pci_mux[] = {
++	{
++		.name = "pci-dev",
++		.mask = 0,
++		.gpio_first = RT3883_GPIO_PCI_AD0,
++		.gpio_last = RT3883_GPIO_PCI_AD31,
++	}, {
++		.name = "pci-host2",
++		.mask = 1,
++		.gpio_first = RT3883_GPIO_PCI_AD0,
++		.gpio_last = RT3883_GPIO_PCI_AD31,
++	}, {
++		.name = "pci-host1",
++		.mask = 2,
++		.gpio_first = RT3883_GPIO_PCI_AD0,
++		.gpio_last = RT3883_GPIO_PCI_AD31,
++	}, {
++		.name = "pci-fnc",
++		.mask = 3,
++		.gpio_first = RT3883_GPIO_PCI_AD0,
++		.gpio_last = RT3883_GPIO_PCI_AD31,
++	}, {
++		.name = "pci-gpio",
++		.mask = 7,
++		.gpio_first = RT3883_GPIO_PCI_AD0,
++		.gpio_last = RT3883_GPIO_PCI_AD31,
++	}, {0}
++};
++
+ static void rt3883_wdt_reset(void)
+ {
+ 	u32 t;
+@@ -129,6 +158,9 @@ struct ralink_pinmux rt_pinmux = {
+ 	.uart_shift = RT3883_GPIO_MODE_UART0_SHIFT,
+ 	.uart_mask = RT3883_GPIO_MODE_GPIO,
+ 	.wdt_reset = rt3883_wdt_reset,
++	.pci = pci_mux,
++	.pci_shift = RT3883_GPIO_MODE_PCI_SHIFT,
++	.pci_mask = RT3883_GPIO_MODE_PCI_MASK,
+ };
+ 
+ void __init ralink_clk_init(void)
diff --git a/target/linux/ramips/patches-3.8/0405-MIPS-ralink-add-GPIO-mode-to-RT3883-UART-pinmux-grou.patch b/target/linux/ramips/patches-3.8/0405-MIPS-ralink-add-GPIO-mode-to-RT3883-UART-pinmux-grou.patch
new file mode 100644
index 000000000..7b2f48b39
--- /dev/null
+++ b/target/linux/ramips/patches-3.8/0405-MIPS-ralink-add-GPIO-mode-to-RT3883-UART-pinmux-grou.patch
@@ -0,0 +1,24 @@
+From 79a01992e15216544dcfdc0be9f2f7695952d047 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Wed, 27 Mar 2013 20:59:26 +0100
+Subject: [PATCH 5/5] MIPS: ralink: add GPIO mode to RT3883 UART pinmux group
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ arch/mips/ralink/rt3883.c |    5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/arch/mips/ralink/rt3883.c
++++ b/arch/mips/ralink/rt3883.c
+@@ -110,6 +110,11 @@ struct ralink_pinmux_grp uart_mux[] = {
+ 		.mask = RT3883_GPIO_MODE_GPIO_I2S,
+ 		.gpio_first = RT3883_GPIO_7,
+ 		.gpio_last = RT3883_GPIO_14,
++	}, {
++		.name = "gpio",
++		.mask = RT3883_GPIO_MODE_GPIO,
++		.gpio_first = RT3883_GPIO_7,
++		.gpio_last = RT3883_GPIO_14,
+ 	}, {0}
+ };
+