From d1cd860adbd87c42c90db1c5658cf10ed1dbdd3e Mon Sep 17 00:00:00 2001 From: John Crispin Date: Thu, 12 Apr 2012 13:25:42 +0200 Subject: [PATCH 72/73] MIPS: lantiq: fix spi for ase, update for clkdev and platform driver irqs, gpios, chipselects updated to use module_platform_driver() clkdev is a bit hacky, using ltq_spi.0, as specifying no device numbering led to the mtd driver not hooking up to an spi flash. Signed-off-by: Conor O'Gorman --- .../mips/include/asm/mach-lantiq/xway/lantiq_irq.h | 4 ++ arch/mips/lantiq/xway/sysctrl.c | 2 +- drivers/spi/spi-xway.c | 58 ++++++++++---------- 3 files changed, 35 insertions(+), 29 deletions(-) --- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h +++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h @@ -30,6 +30,10 @@ #define LTQ_SSC_TIR_AR9 (INT_NUM_IM0_IRL0 + 14) #define LTQ_SSC_RIR_AR9 (INT_NUM_IM0_IRL0 + 15) #define LTQ_SSC_EIR (INT_NUM_IM0_IRL0 + 16) +#define LTQ_SSC_RIR_ASE (INT_NUM_IM0_IRL0 + 16) +#define LTQ_SSC_TIR_ASE (INT_NUM_IM0_IRL0 + 17) +#define LTQ_SSC_EIR_ASE (INT_NUM_IM0_IRL0 + 18) +#define LTQ_SSC_FIR_ASE (INT_NUM_IM0_IRL0 + 19) #define LTQ_MEI_DYING_GASP_INT (INT_NUM_IM1_IRL0 + 21) #define LTQ_MEI_INT (INT_NUM_IM1_IRL0 + 23) --- a/arch/mips/lantiq/xway/sysctrl.c +++ b/arch/mips/lantiq/xway/sysctrl.c @@ -233,7 +233,7 @@ void __init ltq_soc_init(void) clkdev_add_pmu("ltq_fpi", NULL, 0, PMU_FPI); clkdev_add_pmu("ltq_dma", NULL, 0, PMU_DMA); clkdev_add_pmu("ltq_stp", NULL, 0, PMU_STP); - clkdev_add_pmu("ltq_spi", NULL, 0, PMU_SPI); + clkdev_add_pmu("ltq_spi.0", NULL, 0, PMU_SPI); clkdev_add_pmu("ltq_gptu", NULL, 0, PMU_GPT); clkdev_add_pmu("ltq_ebu", NULL, 0, PMU_EBU); if (!ltq_is_vr9()) --- a/drivers/spi/spi-xway.c +++ b/drivers/spi/spi-xway.c @@ -143,9 +143,9 @@ #define LTQ_SPI_IRNEN_ALL 0xF /* Hard-wired GPIOs used by SPI controller */ -#define LTQ_SPI_GPIO_DI 16 -#define LTQ_SPI_GPIO_DO 17 -#define LTQ_SPI_GPIO_CLK 18 +#define LTQ_SPI_GPIO_DI (ltq_is_ase()? 8 : 16) +#define LTQ_SPI_GPIO_DO (ltq_is_ase()? 9 : 17) +#define LTQ_SPI_GPIO_CLK (ltq_is_ase()? 10 : 18) struct ltq_spi { struct spi_bitbang bitbang; @@ -229,7 +229,7 @@ static void ltq_spi_hw_enable(struct ltq u32 clc; /* Power-up mdule */ - clk_enable(hw->spiclk); + clk_enable(hw->spiclk); /* * Set clock divider for run mode to 1 to @@ -245,7 +245,7 @@ static void ltq_spi_hw_disable(struct lt ltq_spi_reg_write(hw, LTQ_SPI_CLC_DISS, LTQ_SPI_CLC); /* Power-down mdule */ - clk_disable(hw->spiclk); + clk_disable(hw->spiclk); } static void ltq_spi_reset_fifos(struct ltq_spi *hw) @@ -284,7 +284,7 @@ static inline int ltq_spi_wait_ready(str cond_resched(); } while (!time_after_eq(jiffies, timeout)); - dev_err(hw->dev, "SPI wait ready timed out\n"); + dev_err(hw->dev, "SPI wait ready timed out stat: %x\n", stat); return -ETIMEDOUT; } @@ -556,6 +556,12 @@ static const struct ltq_spi_cs_gpio_map { 11, 3 }, }; +static const struct ltq_spi_cs_gpio_map ltq_spi_cs_ase[] = { + { 7, 2 }, + { 15, 1 }, + { 14, 1 }, +}; + static int ltq_spi_setup(struct spi_device *spi) { struct ltq_spi *hw = ltq_spi_to_hw(spi); @@ -600,8 +606,10 @@ static int ltq_spi_setup(struct spi_devi cstate->cs_activate = ltq_spi_gpio_cs_activate; cstate->cs_deactivate = ltq_spi_gpio_cs_deactivate; } else { - ret = ltq_gpio_request(&spi->dev, ltq_spi_cs[spi->chip_select].gpio, - ltq_spi_cs[spi->chip_select].mux, + struct ltq_spi_cs_gpio_map *cs_map = + ltq_is_ase() ? ltq_spi_cs_ase : ltq_spi_cs; + ret = ltq_gpio_request(&spi->dev, cs_map[spi->chip_select].gpio, + cs_map[spi->chip_select].mux, 1, "spi-cs"); if (ret) return -EBUSY; @@ -633,7 +641,8 @@ static void ltq_spi_cleanup(struct spi_d if (cdata && cdata->gpio) gpio = cdata->gpio; else - gpio = ltq_spi_cs[spi->chip_select].gpio; + gpio = ltq_is_ase() ? ltq_spi_cs_ase[spi->chip_select].gpio : + ltq_spi_cs[spi->chip_select].gpio; gpio_free(gpio); kfree(cstate); @@ -868,7 +877,8 @@ static const struct ltq_spi_irq_map ltq_ { "spi_err", ltq_spi_err_irq }, }; -static int __init ltq_spi_probe(struct platform_device *pdev) +static int __devinit +ltq_spi_probe(struct platform_device *pdev) { struct spi_master *master; struct resource *r; @@ -910,14 +920,14 @@ static int __init ltq_spi_probe(struct p hw->fpiclk = clk_get_fpi(); if (IS_ERR(hw->fpiclk)) { - dev_err(&pdev->dev, "clk_get\n"); + dev_err(&pdev->dev, "fpi clk\n"); ret = PTR_ERR(hw->fpiclk); goto err_master; } hw->spiclk = clk_get(&pdev->dev, NULL); if (IS_ERR(hw->spiclk)) { - dev_err(&pdev->dev, "clk_get\n"); + dev_err(&pdev->dev, "spi clk\n"); ret = PTR_ERR(hw->spiclk); goto err_master; } @@ -1014,7 +1024,8 @@ err: return ret; } -static int __exit ltq_spi_remove(struct platform_device *pdev) +static int __devexit +ltq_spi_remove(struct platform_device *pdev) { struct ltq_spi *hw = platform_get_drvdata(pdev); int ret, i; @@ -1043,24 +1054,15 @@ static int __exit ltq_spi_remove(struct } static struct platform_driver ltq_spi_driver = { + .probe = ltq_spi_probe, + .remove = __devexit_p(ltq_spi_remove), .driver = { - .name = "ltq_spi", - .owner = THIS_MODULE, - }, - .remove = __exit_p(ltq_spi_remove), + .name = "ltq_spi", + .owner = THIS_MODULE, + }, }; -static int __init ltq_spi_init(void) -{ - return platform_driver_probe(<q_spi_driver, ltq_spi_probe); -} -module_init(ltq_spi_init); - -static void __exit ltq_spi_exit(void) -{ - platform_driver_unregister(<q_spi_driver); -} -module_exit(ltq_spi_exit); +module_platform_driver(ltq_spi_driver); MODULE_DESCRIPTION("Lantiq SoC SPI controller driver"); MODULE_AUTHOR("Daniel Schwierzeck ");