diff options
Diffstat (limited to 'target/linux/ipq806x/patches/0135-spi-qup-Add-support-for-v1.1.1.patch')
| -rw-r--r-- | target/linux/ipq806x/patches/0135-spi-qup-Add-support-for-v1.1.1.patch | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/target/linux/ipq806x/patches/0135-spi-qup-Add-support-for-v1.1.1.patch b/target/linux/ipq806x/patches/0135-spi-qup-Add-support-for-v1.1.1.patch deleted file mode 100644 index 86cce61322..0000000000 --- a/target/linux/ipq806x/patches/0135-spi-qup-Add-support-for-v1.1.1.patch +++ /dev/null @@ -1,125 +0,0 @@ -From 8b9de04ef3aaa154f30baf1ac703a2d3b474ad4e Mon Sep 17 00:00:00 2001 -From: Andy Gross <agross@codeaurora.org> -Date: Thu, 12 Jun 2014 14:34:12 -0500 -Subject: [PATCH 135/182] spi: qup: Add support for v1.1.1 - -This patch adds support for v1.1.1 of the SPI QUP controller. - -Signed-off-by: Andy Gross <agross@codeaurora.org> ---- - .../devicetree/bindings/spi/qcom,spi-qup.txt | 6 +++- - drivers/spi/spi-qup.c | 36 ++++++++++++-------- - 2 files changed, 27 insertions(+), 15 deletions(-) - ---- a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt -+++ b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt -@@ -7,7 +7,11 @@ SPI in master mode supports up to 50MHz, - data path from 4 bits to 32 bits and numerous protocol variants. - - Required properties: --- compatible: Should contain "qcom,spi-qup-v2.1.1" or "qcom,spi-qup-v2.2.1" -+- compatible: Should contain: -+ "qcom,spi-qup-v1.1.1" for 8660, 8960 and 8064. -+ "qcom,spi-qup-v2.1.1" for 8974 and later -+ "qcom,spi-qup-v2.2.1" for 8974 v2 and later. -+ - - reg: Should contain base register location and length - - interrupts: Interrupt number used by this controller - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -142,6 +142,7 @@ struct spi_qup { - int w_size; /* bytes per SPI word */ - int tx_bytes; - int rx_bytes; -+ int qup_v1; - }; - - -@@ -420,7 +421,9 @@ static int spi_qup_io_config(struct spi_ - config |= QUP_CONFIG_SPI_MODE; - writel_relaxed(config, controller->base + QUP_CONFIG); - -- writel_relaxed(0, controller->base + QUP_OPERATIONAL_MASK); -+ /* only write to OPERATIONAL_MASK when register is present */ -+ if (!controller->qup_v1) -+ writel_relaxed(0, controller->base + QUP_OPERATIONAL_MASK); - return 0; - } - -@@ -486,7 +489,7 @@ static int spi_qup_probe(struct platform - struct resource *res; - struct device *dev; - void __iomem *base; -- u32 data, max_freq, iomode; -+ u32 max_freq, iomode; - int ret, irq, size; - - dev = &pdev->dev; -@@ -529,15 +532,6 @@ static int spi_qup_probe(struct platform - return ret; - } - -- data = readl_relaxed(base + QUP_HW_VERSION); -- -- if (data < QUP_HW_VERSION_2_1_1) { -- clk_disable_unprepare(cclk); -- clk_disable_unprepare(iclk); -- dev_err(dev, "v.%08x is not supported\n", data); -- return -ENXIO; -- } -- - master = spi_alloc_master(dev, sizeof(struct spi_qup)); - if (!master) { - clk_disable_unprepare(cclk); -@@ -570,6 +564,10 @@ static int spi_qup_probe(struct platform - controller->cclk = cclk; - controller->irq = irq; - -+ /* set v1 flag if device is version 1 */ -+ if (of_device_is_compatible(dev->of_node, "qcom,spi-qup-v1.1.1")) -+ controller->qup_v1 = 1; -+ - spin_lock_init(&controller->lock); - init_completion(&controller->done); - -@@ -593,8 +591,8 @@ static int spi_qup_probe(struct platform - size = QUP_IO_M_INPUT_FIFO_SIZE(iomode); - controller->in_fifo_sz = controller->in_blk_sz * (2 << size); - -- dev_info(dev, "v.%08x IN:block:%d, fifo:%d, OUT:block:%d, fifo:%d\n", -- data, controller->in_blk_sz, controller->in_fifo_sz, -+ dev_info(dev, "IN:block:%d, fifo:%d, OUT:block:%d, fifo:%d\n", -+ controller->in_blk_sz, controller->in_fifo_sz, - controller->out_blk_sz, controller->out_fifo_sz); - - writel_relaxed(1, base + QUP_SW_RESET); -@@ -607,10 +605,19 @@ static int spi_qup_probe(struct platform - - writel_relaxed(0, base + QUP_OPERATIONAL); - writel_relaxed(0, base + QUP_IO_M_MODES); -- writel_relaxed(0, base + QUP_OPERATIONAL_MASK); -+ -+ if (!controller->qup_v1) -+ writel_relaxed(0, base + QUP_OPERATIONAL_MASK); -+ - writel_relaxed(SPI_ERROR_CLK_UNDER_RUN | SPI_ERROR_CLK_OVER_RUN, - base + SPI_ERROR_FLAGS_EN); - -+ /* if earlier version of the QUP, disable INPUT_OVERRUN */ -+ if (controller->qup_v1) -+ writel_relaxed(QUP_ERROR_OUTPUT_OVER_RUN | -+ QUP_ERROR_INPUT_UNDER_RUN | QUP_ERROR_OUTPUT_UNDER_RUN, -+ base + QUP_ERROR_FLAGS_EN); -+ - writel_relaxed(0, base + SPI_CONFIG); - writel_relaxed(SPI_IO_C_NO_TRI_STATE, base + SPI_IO_CONTROL); - -@@ -732,6 +739,7 @@ static int spi_qup_remove(struct platfor - } - - static struct of_device_id spi_qup_dt_match[] = { -+ { .compatible = "qcom,spi-qup-v1.1.1", }, - { .compatible = "qcom,spi-qup-v2.1.1", }, - { .compatible = "qcom,spi-qup-v2.2.1", }, - { } |