diff options
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/Kconfig | 7 | ||||
| -rw-r--r-- | arch/arm/mach-imx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/clk-busy.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-imx/clk-imx25.c | 123 | ||||
| -rw-r--r-- | arch/arm/mach-imx/clk-imx27.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-imx/common.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/devices/platform-mxc-mmc.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-imx/imx25-dt.c | 48 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mm-imx3.c | 5 |
9 files changed, 172 insertions, 21 deletions
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 0737269707e0..b09924112f99 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -272,6 +272,13 @@ config MACH_EUKREA_MBIMXSD25_BASEBOARD endchoice +config MACH_IMX25_DT + bool "Support i.MX25 platforms from device tree" + select SOC_IMX25 + help + Include support for Freescale i.MX25 based platforms + using the device tree for discovery + comment "MX27 platforms:" config MACH_MX27ADS diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index fe47b71469c9..0634b3152c24 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_MACH_MX21ADS) += mach-mx21ads.o obj-$(CONFIG_MACH_MX25_3DS) += mach-mx25_3ds.o obj-$(CONFIG_MACH_EUKREA_CPUIMX25SD) += mach-eukrea_cpuimx25.o obj-$(CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD) += eukrea_mbimxsd25-baseboard.o +obj-$(CONFIG_MACH_IMX25_DT) += imx25-dt.o # i.MX27 based machines obj-$(CONFIG_MACH_MX27ADS) += mach-mx27ads.o diff --git a/arch/arm/mach-imx/clk-busy.c b/arch/arm/mach-imx/clk-busy.c index 1a7a8dd045a1..1ab91b5209e6 100644 --- a/arch/arm/mach-imx/clk-busy.c +++ b/arch/arm/mach-imx/clk-busy.c @@ -108,7 +108,7 @@ struct clk *imx_clk_busy_divider(const char *name, const char *parent_name, busy->div.hw.init = &init; clk = clk_register(NULL, &busy->div.hw); - if (!clk) + if (IS_ERR(clk)) kfree(busy); return clk; diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c index fd8b27f965df..b197aa73dc4b 100644 --- a/arch/arm/mach-imx/clk-imx25.c +++ b/arch/arm/mach-imx/clk-imx25.c @@ -23,6 +23,9 @@ #include <linux/io.h> #include <linux/clkdev.h> #include <linux/err.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> #include "clk.h" #include "common.h" @@ -55,6 +58,8 @@ #define ccm(x) (CRM_BASE + (x)) +static struct clk_onecell_data clk_data; + static const char *cpu_sel_clks[] = { "mpll", "mpll_cpu_3_4", }; static const char *per_sel_clks[] = { "ahb", "upll", }; @@ -64,24 +69,30 @@ enum mx25_clks { per7_sel, per8_sel, per9_sel, per10_sel, per11_sel, per12_sel, per13_sel, per14_sel, per15_sel, per0, per1, per2, per3, per4, per5, per6, per7, per8, per9, per10, per11, per12, per13, per14, per15, - csi_ipg_per, esdhc1_ipg_per, esdhc2_ipg_per, gpt_ipg_per, i2c_ipg_per, - lcdc_ipg_per, nfc_ipg_per, ssi1_ipg_per, ssi2_ipg_per, uart_ipg_per, - csi_ahb, esdhc1_ahb, esdhc2_ahb, fec_ahb, lcdc_ahb, sdma_ahb, - usbotg_ahb, can1_ipg, can2_ipg, csi_ipg, cspi1_ipg, cspi2_ipg, - cspi3_ipg, dryice_ipg, esdhc1_ipg, esdhc2_ipg, fec_ipg, iim_ipg, - kpp_ipg, lcdc_ipg, pwm1_ipg, pwm2_ipg, pwm3_ipg, pwm4_ipg, sdma_ipg, - ssi1_ipg, ssi2_ipg, tsc_ipg, uart1_ipg, uart2_ipg, uart3_ipg, - uart4_ipg, uart5_ipg, wdt_ipg, clk_max + csi_ipg_per, epit_ipg_per, esai_ipg_per, esdhc1_ipg_per, esdhc2_ipg_per, + gpt_ipg_per, i2c_ipg_per, lcdc_ipg_per, nfc_ipg_per, owire_ipg_per, + pwm_ipg_per, sim1_ipg_per, sim2_ipg_per, ssi1_ipg_per, ssi2_ipg_per, + uart_ipg_per, ata_ahb, reserved1, csi_ahb, emi_ahb, esai_ahb, esdhc1_ahb, + esdhc2_ahb, fec_ahb, lcdc_ahb, rtic_ahb, sdma_ahb, slcdc_ahb, usbotg_ahb, + reserved2, reserved3, reserved4, reserved5, can1_ipg, can2_ipg, csi_ipg, + cspi1_ipg, cspi2_ipg, cspi3_ipg, dryice_ipg, ect_ipg, epit1_ipg, epit2_ipg, + reserved6, esdhc1_ipg, esdhc2_ipg, fec_ipg, reserved7, reserved8, reserved9, + gpt1_ipg, gpt2_ipg, gpt3_ipg, gpt4_ipg, reserved10, reserved11, reserved12, + iim_ipg, reserved13, reserved14, kpp_ipg, lcdc_ipg, reserved15, pwm1_ipg, + pwm2_ipg, pwm3_ipg, pwm4_ipg, rngb_ipg, reserved16, scc_ipg, sdma_ipg, + sim1_ipg, sim2_ipg, slcdc_ipg, spba_ipg, ssi1_ipg, ssi2_ipg, tsc_ipg, + uart1_ipg, uart2_ipg, uart3_ipg, uart4_ipg, uart5_ipg, reserved17, + wdt_ipg, clk_max }; static struct clk *clk[clk_max]; -int __init mx25_clocks_init(void) +static int __init __mx25_clocks_init(unsigned long osc_rate) { int i; clk[dummy] = imx_clk_fixed("dummy", 0); - clk[osc] = imx_clk_fixed("osc", 24000000); + clk[osc] = imx_clk_fixed("osc", osc_rate); clk[mpll] = imx_clk_pllv1("mpll", "osc", ccm(CCM_MPCTL)); clk[upll] = imx_clk_pllv1("upll", "osc", ccm(CCM_UPCTL)); clk[mpll_cpu_3_4] = imx_clk_fixed_factor("mpll_cpu_3_4", "mpll", 3, 4); @@ -123,22 +134,36 @@ int __init mx25_clocks_init(void) clk[per14] = imx_clk_divider("per14", "per14_sel", ccm(CCM_PCDR3), 16, 6); clk[per15] = imx_clk_divider("per15", "per15_sel", ccm(CCM_PCDR3), 24, 6); clk[csi_ipg_per] = imx_clk_gate("csi_ipg_per", "per0", ccm(CCM_CGCR0), 0); + clk[epit_ipg_per] = imx_clk_gate("epit_ipg_per", "per1", ccm(CCM_CGCR0), 1); + clk[esai_ipg_per] = imx_clk_gate("esai_ipg_per", "per2", ccm(CCM_CGCR0), 2); clk[esdhc1_ipg_per] = imx_clk_gate("esdhc1_ipg_per", "per3", ccm(CCM_CGCR0), 3); clk[esdhc2_ipg_per] = imx_clk_gate("esdhc2_ipg_per", "per4", ccm(CCM_CGCR0), 4); clk[gpt_ipg_per] = imx_clk_gate("gpt_ipg_per", "per5", ccm(CCM_CGCR0), 5); clk[i2c_ipg_per] = imx_clk_gate("i2c_ipg_per", "per6", ccm(CCM_CGCR0), 6); - clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per8", ccm(CCM_CGCR0), 7); - clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "ipg_per", ccm(CCM_CGCR0), 8); + clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per7", ccm(CCM_CGCR0), 7); + clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "per8", ccm(CCM_CGCR0), 8); + clk[owire_ipg_per] = imx_clk_gate("owire_ipg_per", "per9", ccm(CCM_CGCR0), 9); + clk[pwm_ipg_per] = imx_clk_gate("pwm_ipg_per", "per10", ccm(CCM_CGCR0), 10); + clk[sim1_ipg_per] = imx_clk_gate("sim1_ipg_per", "per11", ccm(CCM_CGCR0), 11); + clk[sim2_ipg_per] = imx_clk_gate("sim2_ipg_per", "per12", ccm(CCM_CGCR0), 12); clk[ssi1_ipg_per] = imx_clk_gate("ssi1_ipg_per", "per13", ccm(CCM_CGCR0), 13); clk[ssi2_ipg_per] = imx_clk_gate("ssi2_ipg_per", "per14", ccm(CCM_CGCR0), 14); clk[uart_ipg_per] = imx_clk_gate("uart_ipg_per", "per15", ccm(CCM_CGCR0), 15); + clk[ata_ahb] = imx_clk_gate("ata_ahb", "ahb", ccm(CCM_CGCR0), 16); + /* CCM_CGCR0(17): reserved */ clk[csi_ahb] = imx_clk_gate("csi_ahb", "ahb", ccm(CCM_CGCR0), 18); + clk[emi_ahb] = imx_clk_gate("emi_ahb", "ahb", ccm(CCM_CGCR0), 19); + clk[esai_ahb] = imx_clk_gate("esai_ahb", "ahb", ccm(CCM_CGCR0), 20); clk[esdhc1_ahb] = imx_clk_gate("esdhc1_ahb", "ahb", ccm(CCM_CGCR0), 21); clk[esdhc2_ahb] = imx_clk_gate("esdhc2_ahb", "ahb", ccm(CCM_CGCR0), 22); clk[fec_ahb] = imx_clk_gate("fec_ahb", "ahb", ccm(CCM_CGCR0), 23); clk[lcdc_ahb] = imx_clk_gate("lcdc_ahb", "ahb", ccm(CCM_CGCR0), 24); + clk[rtic_ahb] = imx_clk_gate("rtic_ahb", "ahb", ccm(CCM_CGCR0), 25); clk[sdma_ahb] = imx_clk_gate("sdma_ahb", "ahb", ccm(CCM_CGCR0), 26); + clk[slcdc_ahb] = imx_clk_gate("slcdc_ahb", "ahb", ccm(CCM_CGCR0), 27); clk[usbotg_ahb] = imx_clk_gate("usbotg_ahb", "ahb", ccm(CCM_CGCR0), 28); + /* CCM_CGCR0(29-31): reserved */ + /* CCM_CGCR1(0): reserved in datasheet, used as audmux in FSL kernel */ clk[can1_ipg] = imx_clk_gate("can1_ipg", "ipg", ccm(CCM_CGCR1), 2); clk[can2_ipg] = imx_clk_gate("can2_ipg", "ipg", ccm(CCM_CGCR1), 3); clk[csi_ipg] = imx_clk_gate("csi_ipg", "ipg", ccm(CCM_CGCR1), 4); @@ -146,17 +171,41 @@ int __init mx25_clocks_init(void) clk[cspi2_ipg] = imx_clk_gate("cspi2_ipg", "ipg", ccm(CCM_CGCR1), 6); clk[cspi3_ipg] = imx_clk_gate("cspi3_ipg", "ipg", ccm(CCM_CGCR1), 7); clk[dryice_ipg] = imx_clk_gate("dryice_ipg", "ipg", ccm(CCM_CGCR1), 8); + clk[ect_ipg] = imx_clk_gate("ect_ipg", "ipg", ccm(CCM_CGCR1), 9); + clk[epit1_ipg] = imx_clk_gate("epit1_ipg", "ipg", ccm(CCM_CGCR1), 10); + clk[epit2_ipg] = imx_clk_gate("epit2_ipg", "ipg", ccm(CCM_CGCR1), 11); + /* CCM_CGCR1(12): reserved in datasheet, used as esai in FSL kernel */ clk[esdhc1_ipg] = imx_clk_gate("esdhc1_ipg", "ipg", ccm(CCM_CGCR1), 13); clk[esdhc2_ipg] = imx_clk_gate("esdhc2_ipg", "ipg", ccm(CCM_CGCR1), 14); clk[fec_ipg] = imx_clk_gate("fec_ipg", "ipg", ccm(CCM_CGCR1), 15); + /* CCM_CGCR1(16): reserved in datasheet, used as gpio1 in FSL kernel */ + /* CCM_CGCR1(17): reserved in datasheet, used as gpio2 in FSL kernel */ + /* CCM_CGCR1(18): reserved in datasheet, used as gpio3 in FSL kernel */ + clk[gpt1_ipg] = imx_clk_gate("gpt1_ipg", "ipg", ccm(CCM_CGCR1), 19); + clk[gpt2_ipg] = imx_clk_gate("gpt2_ipg", "ipg", ccm(CCM_CGCR1), 20); + clk[gpt3_ipg] = imx_clk_gate("gpt3_ipg", "ipg", ccm(CCM_CGCR1), 21); + clk[gpt4_ipg] = imx_clk_gate("gpt4_ipg", "ipg", ccm(CCM_CGCR1), 22); + /* CCM_CGCR1(23): reserved in datasheet, used as i2c1 in FSL kernel */ + /* CCM_CGCR1(24): reserved in datasheet, used as i2c2 in FSL kernel */ + /* CCM_CGCR1(25): reserved in datasheet, used as i2c3 in FSL kernel */ clk[iim_ipg] = imx_clk_gate("iim_ipg", "ipg", ccm(CCM_CGCR1), 26); + /* CCM_CGCR1(27): reserved in datasheet, used as iomuxc in FSL kernel */ + /* CCM_CGCR1(28): reserved in datasheet, used as kpp in FSL kernel */ clk[kpp_ipg] = imx_clk_gate("kpp_ipg", "ipg", ccm(CCM_CGCR1), 28); clk[lcdc_ipg] = imx_clk_gate("lcdc_ipg", "ipg", ccm(CCM_CGCR1), 29); + /* CCM_CGCR1(30): reserved in datasheet, used as owire in FSL kernel */ clk[pwm1_ipg] = imx_clk_gate("pwm1_ipg", "ipg", ccm(CCM_CGCR1), 31); clk[pwm2_ipg] = imx_clk_gate("pwm2_ipg", "ipg", ccm(CCM_CGCR2), 0); clk[pwm3_ipg] = imx_clk_gate("pwm3_ipg", "ipg", ccm(CCM_CGCR2), 1); clk[pwm4_ipg] = imx_clk_gate("pwm4_ipg", "ipg", ccm(CCM_CGCR2), 2); + clk[rngb_ipg] = imx_clk_gate("rngb_ipg", "ipg", ccm(CCM_CGCR2), 3); + /* CCM_CGCR2(4): reserved in datasheet, used as rtic in FSL kernel */ + clk[scc_ipg] = imx_clk_gate("scc_ipg", "ipg", ccm(CCM_CGCR2), 5); clk[sdma_ipg] = imx_clk_gate("sdma_ipg", "ipg", ccm(CCM_CGCR2), 6); + clk[sim1_ipg] = imx_clk_gate("sim1_ipg", "ipg", ccm(CCM_CGCR2), 7); + clk[sim2_ipg] = imx_clk_gate("sim2_ipg", "ipg", ccm(CCM_CGCR2), 8); + clk[slcdc_ipg] = imx_clk_gate("slcdc_ipg", "ipg", ccm(CCM_CGCR2), 9); + clk[spba_ipg] = imx_clk_gate("spba_ipg", "ipg", ccm(CCM_CGCR2), 10); clk[ssi1_ipg] = imx_clk_gate("ssi1_ipg", "ipg", ccm(CCM_CGCR2), 11); clk[ssi2_ipg] = imx_clk_gate("ssi2_ipg", "ipg", ccm(CCM_CGCR2), 12); clk[tsc_ipg] = imx_clk_gate("tsc_ipg", "ipg", ccm(CCM_CGCR2), 13); @@ -165,6 +214,7 @@ int __init mx25_clocks_init(void) clk[uart3_ipg] = imx_clk_gate("uart3_ipg", "ipg", ccm(CCM_CGCR2), 16); clk[uart4_ipg] = imx_clk_gate("uart4_ipg", "ipg", ccm(CCM_CGCR2), 17); clk[uart5_ipg] = imx_clk_gate("uart5_ipg", "ipg", ccm(CCM_CGCR2), 18); + /* CCM_CGCR2(19): reserved in datasheet, but used as wdt in FSL kernel */ clk[wdt_ipg] = imx_clk_gate("wdt_ipg", "ipg", ccm(CCM_CGCR2), 19); for (i = 0; i < ARRAY_SIZE(clk); i++) @@ -172,6 +222,18 @@ int __init mx25_clocks_init(void) pr_err("i.MX25 clk %d: register failed with %ld\n", i, PTR_ERR(clk[i])); + clk_prepare_enable(clk[emi_ahb]); + + clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0"); + clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0"); + + return 0; +} + +int __init mx25_clocks_init(void) +{ + __mx25_clocks_init(24000000); + /* i.mx25 has the i.mx21 type uart */ clk_register_clkdev(clk[uart1_ipg], "ipg", "imx21-uart.0"); clk_register_clkdev(clk[uart_ipg_per], "per", "imx21-uart.0"); @@ -183,8 +245,6 @@ int __init mx25_clocks_init(void) clk_register_clkdev(clk[uart_ipg_per], "per", "imx21-uart.3"); clk_register_clkdev(clk[uart5_ipg], "ipg", "imx21-uart.4"); clk_register_clkdev(clk[uart_ipg_per], "per", "imx21-uart.4"); - clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0"); - clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0"); clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.0"); clk_register_clkdev(clk[usbotg_ahb], "ahb", "mxc-ehci.0"); clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.0"); @@ -242,5 +302,40 @@ int __init mx25_clocks_init(void) clk_register_clkdev(clk[iim_ipg], "iim", NULL); mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), MX25_INT_GPT1); + + return 0; +} + +int __init mx25_clocks_init_dt(void) +{ + struct device_node *np; + void __iomem *base; + int irq; + unsigned long osc_rate = 24000000; + + /* retrieve the freqency of fixed clocks from device tree */ + for_each_compatible_node(np, NULL, "fixed-clock") { + u32 rate; + if (of_property_read_u32(np, "clock-frequency", &rate)) + continue; + + if (of_device_is_compatible(np, "fsl,imx-osc")) + osc_rate = rate; + } + + np = of_find_compatible_node(NULL, NULL, "fsl,imx25-ccm"); + clk_data.clks = clk; + clk_data.clk_num = ARRAY_SIZE(clk); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + __mx25_clocks_init(osc_rate); + + np = of_find_compatible_node(NULL, NULL, "fsl,imx25-gpt"); + base = of_iomap(np, 0); + WARN_ON(!base); + irq = irq_of_parse_and_map(np, 0); + + mxc_timer_init(base, irq); + return 0; } diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c index c3bddd3e2554..585ab256c58f 100644 --- a/arch/arm/mach-imx/clk-imx27.c +++ b/arch/arm/mach-imx/clk-imx27.c @@ -109,7 +109,7 @@ int __init mx27_clocks_init(unsigned long fref) clk[per3_div] = imx_clk_divider("per3_div", "mpll_main2", CCM_PCDR1, 16, 6); clk[per4_div] = imx_clk_divider("per4_div", "mpll_main2", CCM_PCDR1, 24, 6); clk[vpu_sel] = imx_clk_mux("vpu_sel", CCM_CSCR, 21, 1, vpu_sel_clks, ARRAY_SIZE(vpu_sel_clks)); - clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 3); + clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 6); clk[usb_div] = imx_clk_divider("usb_div", "spll", CCM_CSCR, 28, 3); clk[cpu_sel] = imx_clk_mux("cpu_sel", CCM_CSCR, 15, 1, cpu_sel_clks, ARRAY_SIZE(cpu_sel_clks)); clk[clko_sel] = imx_clk_mux("clko_sel", CCM_CCSR, 0, 5, clko_sel_clks, ARRAY_SIZE(clko_sel_clks)); @@ -121,7 +121,7 @@ int __init mx27_clocks_init(unsigned long fref) clk[ssi1_sel] = imx_clk_mux("ssi1_sel", CCM_CSCR, 22, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); clk[ssi2_sel] = imx_clk_mux("ssi2_sel", CCM_CSCR, 23, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); clk[ssi1_div] = imx_clk_divider("ssi1_div", "ssi1_sel", CCM_PCDR0, 16, 6); - clk[ssi2_div] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 3); + clk[ssi2_div] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 6); clk[clko_en] = imx_clk_gate("clko_en", "clko_div", CCM_PCCR0, 0); clk[ssi2_ipg_gate] = imx_clk_gate("ssi2_ipg_gate", "ipg", CCM_PCCR0, 0); clk[ssi1_ipg_gate] = imx_clk_gate("ssi1_ipg_gate", "ipg", CCM_PCCR0, 1); diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h index ef8db6b34841..7191ab4434e5 100644 --- a/arch/arm/mach-imx/common.h +++ b/arch/arm/mach-imx/common.h @@ -66,6 +66,7 @@ extern int mx51_clocks_init(unsigned long ckil, unsigned long osc, unsigned long ckih1, unsigned long ckih2); extern int mx53_clocks_init(unsigned long ckil, unsigned long osc, unsigned long ckih1, unsigned long ckih2); +extern int mx25_clocks_init_dt(void); extern int mx27_clocks_init_dt(void); extern int mx31_clocks_init_dt(void); extern int mx51_clocks_init_dt(void); diff --git a/arch/arm/mach-imx/devices/platform-mxc-mmc.c b/arch/arm/mach-imx/devices/platform-mxc-mmc.c index 7da19afa1bba..b8203c760c8f 100644 --- a/arch/arm/mach-imx/devices/platform-mxc-mmc.c +++ b/arch/arm/mach-imx/devices/platform-mxc-mmc.c @@ -57,7 +57,7 @@ struct platform_device *__init imx_add_mxc_mmc( struct resource res[] = { { .start = data->iobase, - .end = data->iobase + SZ_4K - 1, + .end = data->iobase + data->iosize - 1, .flags = IORESOURCE_MEM, }, { .start = data->irq, diff --git a/arch/arm/mach-imx/imx25-dt.c b/arch/arm/mach-imx/imx25-dt.c new file mode 100644 index 000000000000..e17dfbc42192 --- /dev/null +++ b/arch/arm/mach-imx/imx25-dt.c @@ -0,0 +1,48 @@ +/* + * Copyright 2012 Sascha Hauer, Pengutronix + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/irq.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include "common.h" +#include "mx25.h" + +static void __init imx25_dt_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static void __init imx25_timer_init(void) +{ + mx25_clocks_init_dt(); +} + +static struct sys_timer imx25_timer = { + .init = imx25_timer_init, +}; + +static const char * const imx25_dt_board_compat[] __initconst = { + "fsl,imx25", + NULL +}; + +DT_MACHINE_START(IMX25_DT, "Freescale i.MX25 (Device Tree Support)") + .map_io = mx25_map_io, + .init_early = imx25_init_early, + .init_irq = mx25_init_irq, + .handle_irq = imx25_handle_irq, + .timer = &imx25_timer, + .init_machine = imx25_dt_init, + .dt_compat = imx25_dt_board_compat, + .restart = mxc_restart, +MACHINE_END diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index f718bf5e964a..cefa047c4053 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -107,9 +107,8 @@ void __init imx3_init_l2x0(void) } l2x0_base = ioremap(MX3x_L2CC_BASE_ADDR, 4096); - if (IS_ERR(l2x0_base)) { - printk(KERN_ERR "remapping L2 cache area failed with %ld\n", - PTR_ERR(l2x0_base)); + if (!l2x0_base) { + printk(KERN_ERR "remapping L2 cache area failed\n"); return; } |