kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 92 deletions

diff --git a/target/linux/layerscape/patches-5.4/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch b/target/linux/layerscape/patches-5.4/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch
deleted file mode 100644
index 7fd505df42..0000000000
--- a/target/linux/layerscape/patches-5.4/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch
+++ /dev/null
@@ -1,92 +0,0 @@
-From 27ea8554c8fdcdf1d7aba5ce47630d878ce96691 Mon Sep 17 00:00:00 2001
-From: Biwen Li <biwen.li@nxp.com>
-Date: Thu, 24 Oct 2019 13:14:44 +0800
-Subject: [PATCH] i2c: imx: correct code of errata A-010650 for layerscape
- platform
-
-- Simplify code with helper function i2c_imx_clr_al_bit
-- Fix an error about clearing arbitration lost bit
-- Fix an error that not set I2Cx_IBCR following by
-  the workaround of A-010650 (in step 5)
-
-Reviewed-by: Clark Wang <xiaoning.wang@nxp.com>
-Signed-off-by: Biwen Li <biwen.li@nxp.com>
----
- drivers/i2c/busses/i2c-imx.c | 38 +++++++++++++++++++-------------------
- 1 file changed, 19 insertions(+), 19 deletions(-)
-
---- a/drivers/i2c/busses/i2c-imx.c
-+++ b/drivers/i2c/busses/i2c-imx.c
-@@ -516,6 +516,14 @@ static void i2c_imx_clear_irq(struct imx
- 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR);
- }
- 
-+/* Clear arbitration lost bit */
-+static void i2c_imx_clr_al_bit(unsigned int status, struct imx_i2c_struct *i2c_imx)
-+{
-+	status &= ~I2SR_IAL;
-+	status |= (i2c_imx->hwdata->i2sr_clr_opcode & I2SR_IAL);
-+	imx_i2c_write_reg(status, i2c_imx, IMX_I2C_I2SR);
-+}
-+
- static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy)
- {
- 	unsigned long orig_jiffies = jiffies;
-@@ -528,7 +536,7 @@ static int i2c_imx_bus_busy(struct imx_i
- 
- 		/* check for arbitration lost */
- 		if (temp & I2SR_IAL) {
--			i2c_imx_clear_irq(i2c_imx, I2SR_IAL);
-+			i2c_imx_clr_al_bit(temp, i2c_imx);
- 			return -EAGAIN;
- 		}
- 
-@@ -724,14 +732,6 @@ static void i2c_imx_clr_if_bit(unsigned
- 	imx_i2c_write_reg(status, i2c_imx, IMX_I2C_I2SR);
- }
- 
--/* Clear arbitration lost bit */
--static void i2c_imx_clr_al_bit(unsigned int status, struct imx_i2c_struct *i2c_imx)
--{
--	status &= ~I2SR_IAL;
--	status |= (i2c_imx->hwdata->i2sr_clr_opcode & I2SR_IAL);
--	imx_i2c_write_reg(status, i2c_imx, IMX_I2C_I2SR);
--}
--
- static irqreturn_t i2c_imx_master_isr(struct imx_i2c_struct *i2c_imx)
- {
- 	unsigned int status;
-@@ -1080,12 +1080,14 @@ static int i2c_imx_recovery_for_layersca
- 	gpio_set_value(i2c_imx->gpio, 1);
- 
- 	/*
--	 * Set I2Cx_IBCR = 0h00 to generate a STOP and then
--	 * set I2Cx_IBCR = 0h80 to reset
-+	 * Set I2Cx_IBCR = 0h00 to generate a STOP
- 	 */
--	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);
--	temp &= ~(I2CR_MSTA | I2CR_MTX);
--	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);
-+	imx_i2c_write_reg(i2c_imx->hwdata->i2cr_ien_opcode, i2c_imx, IMX_I2C_I2CR);
-+
-+	/*
-+	 * Set I2Cx_IBCR = 0h80 to reset the I2Cx controller
-+	 */
-+	imx_i2c_write_reg(i2c_imx->hwdata->i2cr_ien_opcode | I2CR_IEN, i2c_imx, IMX_I2C_I2CR);
- 
- 	/* Restore the saved value of the register SCFG_RCWPMUXCR0 */
- 	if (i2c_imx->need_set_pmuxcr == 1) {
-@@ -1099,10 +1101,9 @@ static int i2c_imx_recovery_for_layersca
- 	 * I2C_IBSR[IBAL] = 1
- 	 */
- 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR);
--	if (temp & I2SR_IAL) {
--		temp &= ~I2SR_IAL;
--		imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR);
--	}
-+	if (temp & I2SR_IAL)
-+		i2c_imx_clr_al_bit(temp, i2c_imx);
-+
- 	return 0;
- }
-