brcm2708: update to latest patches from RPi foundation

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 0 insertions, 90 deletions

diff --git a/target/linux/brcm2708/patches-4.19/950-0552-pinctrl-bcm2835-Add-support-for-BCM2838.patch b/target/linux/brcm2708/patches-4.19/950-0552-pinctrl-bcm2835-Add-support-for-BCM2838.patch
deleted file mode 100644
index 47d72bf0c7..0000000000
--- a/target/linux/brcm2708/patches-4.19/950-0552-pinctrl-bcm2835-Add-support-for-BCM2838.patch
+++ /dev/null
@@ -1,90 +0,0 @@
-From 40c0d670970e7896a0be03ab0f884bdcd718660d Mon Sep 17 00:00:00 2001
-From: Tim Gover <tim.gover@raspberrypi.org>
-Date: Wed, 9 Jan 2019 14:43:36 +0000
-Subject: [PATCH 552/725] pinctrl-bcm2835: Add support for BCM2838
-
-GPIO configuration on BCM2838 is largely the same as BCM2835 except for
-the pull up/down configuration. The old mechanism has been replaced
-by new registers which don't require the fixed delay.
-
-Detect BCN2838 at run-time and use the new mechanism. Backwards
-compatibility for the device-tree configuration has been retained.
----
- drivers/pinctrl/bcm/pinctrl-bcm2835.c | 58 ++++++++++++++++++++-------
- 1 file changed, 44 insertions(+), 14 deletions(-)
-
---- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
-+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
-@@ -67,6 +67,12 @@
- #define GPPUD		0x94	/* Pin Pull-up/down Enable */
- #define GPPUDCLK0	0x98	/* Pin Pull-up/down Enable Clock */
- 
-+/* 2711 has a different mechanism for pin pull-up/down/enable  */
-+#define GPPUPPDN0		0xe4	/* Pin pull-up/down for pins 15:0  */
-+#define GPPUPPDN1		0xe8	/* Pin pull-up/down for pins 31:16 */
-+#define GPPUPPDN2		0xec	/* Pin pull-up/down for pins 47:32 */
-+#define GPPUPPDN3		0xf0	/* Pin pull-up/down for pins 57:48 */
-+
- #define FSEL_REG(p)		(GPFSEL0 + (((p) / 10) * 4))
- #define FSEL_SHIFT(p)		(((p) % 10) * 3)
- #define GPIO_REG_OFFSET(p)	((p) / 32)
-@@ -917,21 +923,45 @@ static void bcm2835_pull_config_set(stru
- 		unsigned int pin, unsigned int arg)
- {
- 	u32 off, bit;
-+	/* BCM2835, BCM2836 & BCM2837 return 'gpio' for this unused register */
-+	int is_2835 = bcm2835_gpio_rd(pc, GPPUPPDN3) == 0x6770696f;
- 
--	off = GPIO_REG_OFFSET(pin);
--	bit = GPIO_REG_SHIFT(pin);
--
--	bcm2835_gpio_wr(pc, GPPUD, arg & 3);
--	/*
--	 * BCM2835 datasheet say to wait 150 cycles, but not of what.
--	 * But the VideoCore firmware delay for this operation
--	 * based nearly on the same amount of VPU cycles and this clock
--	 * runs at 250 MHz.
--	 */
--	udelay(1);
--	bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), BIT(bit));
--	udelay(1);
--	bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), 0);
-+        if (is_2835) {
-+		off = GPIO_REG_OFFSET(pin);
-+		bit = GPIO_REG_SHIFT(pin);
-+		/*
-+		 * BCM2835 datasheet say to wait 150 cycles, but not of what.
-+		 * But the VideoCore firmware delay for this operation
-+		 * based nearly on the same amount of VPU cycles and this clock
-+		 * runs at 250 MHz.
-+		 */
-+		bcm2835_gpio_wr(pc, GPPUD, arg & 3);
-+		udelay(1);
-+		bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), BIT(bit));
-+		udelay(1);
-+		bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), 0);
-+	} else {
-+		u32 reg;
-+		int lsb;
-+
-+		off = (pin >> 4);
-+		if (off > 3)
-+			return;
-+		lsb = (pin & 0xf) << 1;
-+
-+		/* The up/down semantics are reversed compared to BCM2835.
-+		 * Instead of updating all the device tree files, translate the
-+		 * values here.
-+		 */
-+		if (arg == 2)
-+			arg = 1;
-+		else if (arg == 1)
-+			arg = 2;
-+		reg = bcm2835_gpio_rd(pc, GPPUPPDN0 + (off *4));
-+		reg &= ~(0x3 << lsb);
-+		reg |= (arg & 3) << lsb;
-+		bcm2835_gpio_wr(pc, GPPUPPDN0 + (off * 4), reg);
-+	}
- }
- 
- static int bcm2835_pinconf_set(struct pinctrl_dev *pctldev,