diff options
Diffstat (limited to 'target/linux/lantiq/patches-3.2/0071-MIPS-lantiq-stp-fix-for-ase-add-get-clock-disabled.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.2/0071-MIPS-lantiq-stp-fix-for-ase-add-get-clock-disabled.patch | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.2/0071-MIPS-lantiq-stp-fix-for-ase-add-get-clock-disabled.patch b/target/linux/lantiq/patches-3.2/0071-MIPS-lantiq-stp-fix-for-ase-add-get-clock-disabled.patch new file mode 100644 index 0000000000..7aeaa1de82 --- /dev/null +++ b/target/linux/lantiq/patches-3.2/0071-MIPS-lantiq-stp-fix-for-ase-add-get-clock-disabled.patch @@ -0,0 +1,88 @@ +From d8e3038c520ea6c7619d3f5339c47ca0c2aa7fe3 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Wed, 11 Apr 2012 18:47:53 +0200 +Subject: [PATCH 71/73] MIPS: lantiq: stp, fix for ase, add get, clock + disabled + +Lantiq serial-to-parallel hardware gpio module +Added gpio pins as used for amazon se (ase) +Added get to enable reporting of gpio status +Changed to use software update, as hw clock was not running on ase. Clock +really only needed if hw flashing was implemented. + +Signed-off-by: Conor O'Gorman <i@conorogorman.net> +--- + arch/mips/lantiq/xway/gpio_stp.c | 22 +++++++++++++--------- + 1 files changed, 13 insertions(+), 9 deletions(-) + +diff --git a/arch/mips/lantiq/xway/gpio_stp.c b/arch/mips/lantiq/xway/gpio_stp.c +index 9610c10..791beeb 100644 +--- a/arch/mips/lantiq/xway/gpio_stp.c ++++ b/arch/mips/lantiq/xway/gpio_stp.c +@@ -27,6 +27,7 @@ + #define LTQ_STP_AR 0x10 + + #define LTQ_STP_CON_SWU (1 << 31) ++#define LTQ_STP_SWU_MASK (1 << 31) + #define LTQ_STP_2HZ 0 + #define LTQ_STP_4HZ (1 << 23) + #define LTQ_STP_8HZ (2 << 23) +@@ -60,6 +61,12 @@ static void ltq_stp_set(struct gpio_chip *chip, unsigned offset, int value) + else + ltq_stp_shadow &= ~(1 << offset); + ltq_stp_w32(ltq_stp_shadow, LTQ_STP_CPU0); ++ ltq_stp_w32_mask(LTQ_STP_SWU_MASK, LTQ_STP_CON_SWU, LTQ_STP_CON0); ++} ++ ++static int ltq_stp_get(struct gpio_chip *chip, unsigned offset) ++{ ++ return !!(ltq_stp_r32(LTQ_STP_CPU0) & (1<<offset)); + } + + static int ltq_stp_direction_output(struct gpio_chip *chip, unsigned offset, +@@ -74,6 +81,7 @@ static struct gpio_chip ltq_stp_chip = { + .label = "ltq_stp", + .direction_output = ltq_stp_direction_output, + .set = ltq_stp_set, ++ .get = ltq_stp_get, + .base = 200, + .ngpio = 24, + .owner = THIS_MODULE, +@@ -97,12 +105,6 @@ static int ltq_stp_hw_init(struct device *dev) + ltq_stp_w32_mask(0, LTQ_STP_GROUP0 | LTQ_STP_GROUP1 | LTQ_STP_GROUP2, + LTQ_STP_CON1); + +- /* stp are update periodically by the FPI bus */ +- ltq_stp_w32_mask(LTQ_STP_UPD_MASK, LTQ_STP_UPD_FPI, LTQ_STP_CON1); +- +- /* set stp update speed */ +- ltq_stp_w32_mask(LTQ_STP_SPEED_MASK, LTQ_STP_8HZ, LTQ_STP_CON1); +- + /* tell the hardware that pin (led) 0 and 1 are controlled + * by the dsl arc + */ +@@ -118,6 +120,7 @@ static int __devinit ltq_stp_probe(struct platform_device *pdev) + { + struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + int ret = 0; ++ int pin; + + if (!res) + return -ENOENT; +@@ -135,9 +138,10 @@ static int __devinit ltq_stp_probe(struct platform_device *pdev) + } + + /* the 3 pins used to control the external stp */ +- if (ltq_gpio_request(&pdev->dev, 4, 2, 1, "stp-st") || +- ltq_gpio_request(&pdev->dev, 5, 2, 1, "stp-d") || +- ltq_gpio_request(&pdev->dev, 6, 2, 1, "stp-sh")) { ++ pin = ltq_is_ase() ? 1 : 4; ++ if (ltq_gpio_request(&pdev->dev, pin, 2, 1, "stp-st") || ++ ltq_gpio_request(&pdev->dev, pin+1, 2, 1, "stp-d") || ++ ltq_gpio_request(&pdev->dev, pin+2, 2, 1, "stp-sh")) { + dev_err(&pdev->dev, "failed to request needed gpios\n"); + return -EBUSY; + } +-- +1.7.9.1 + |