[PATCH v1 5/9] da850: pruss CAN board specific additions.
From: Subhasish Ghosh <hidden>
Date: 2011-02-01 14:47:43
Subsystem:
arm port, the rest, ti davinci machine support · Maintainers:
Russell King, Linus Torvalds, Bartosz Golaszewski
This patch adds the pruss CAN pin mux and registers the device with the pruss mfd driver. Signed-off-by: Subhasish Ghosh <redacted> --- arch/arm/mach-davinci/board-da850-evm.c | 40 ++++++++++++++++++++++++++++++- 1 files changed, 39 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 7938c6d..285545f 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c@@ -1053,8 +1053,46 @@ static __init int da850_evm_init_cpufreq(void) static __init int da850_evm_init_cpufreq(void) { return 0; } #endif +const short da850_pruss_can_pins[] = { + DA850_PRUSS_PRU0_R31_0, DA850_PRUSS_PRU1_R30_15, + DA850_PRUSS_PRU1_R31_18, + -1 +}; + +static int __init da850_evm_setup_pruss_can(void) +{ + int ret, val = 0; + void __iomem *cfg_chip3_base; + + if (!machine_is_davinci_da850_evm()) + return 0; + + ret = davinci_cfg_reg_list(da850_pruss_can_pins); + if (ret) + pr_warning("%s: da850_pruss_can_pins mux setup " + "failed:%d\n", __func__, ret); + cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG); + val = __raw_readl(cfg_chip3_base); + val |= BIT(3); + __raw_writel(val, cfg_chip3_base); + + return ret; +} + +static struct da8xx_pruss_can_data can_data = { + .version = 1, +}; + static struct da8xx_pruss_devices pruss_devices[] = { - {.dev_name = NULL,}, + { + .dev_name = "da8xx_pruss_can", + .pdata = &can_data, + .pdata_size = sizeof(can_data), + .setup = da850_evm_setup_pruss_can, + }, + { + .dev_name = NULL, + }, }; static int __init da8xx_evm_setup_pruss(void)
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1.7.2.3