From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1W4Axf-0003In-Jx for barebox@lists.infradead.org; Fri, 17 Jan 2014 15:04:11 +0000 From: Sascha Hauer Date: Fri, 17 Jan 2014 16:03:16 +0100 Message-Id: <1389971012-22977-7-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1389971012-22977-1-git-send-email-s.hauer@pengutronix.de> References: <1389971012-22977-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 06/22] ARM: i.MX27: Add missing MPLL clock sources To: barebox@lists.infradead.org The MPLL can be driven from the low frequency reference clock. This is the reset default. Currently the clock code assumes this has been changed from the lowlevel code. If that didn't happen we get wrong clock rates. This adds the missing clocks so that we get correct clock rates. Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/clk-imx27.c | 44 ++++++++++++++++++++++++++++++++++++++----- 1 file changed, 39 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c index 6fd3cd6..c792261 100644 --- a/arch/arm/mach-imx/clk-imx27.c +++ b/arch/arm/mach-imx/clk-imx27.c @@ -92,8 +92,23 @@ enum mx27_clks { dummy, ckih, ckil, mpll, spll, mpll_main2, ahb, ipg, nfc_div, per1_div, - per2_div, per3_div, per4_div, usb_div, cpu_sel, clko_sel, cpu_div, clko_div, - clko_en, lcdc_per_gate, lcdc_ahb_gate, lcdc_ipg_gate, clk_max + per2_div, per3_div, per4_div, vpu_sel, vpu_div, usb_div, cpu_sel, + clko_sel, cpu_div, clko_div, ssi1_sel, ssi2_sel, ssi1_div, ssi2_div, + clko_en, ssi2_ipg_gate, ssi1_ipg_gate, slcdc_ipg_gate, sdhc3_ipg_gate, + sdhc2_ipg_gate, sdhc1_ipg_gate, scc_ipg_gate, sahara_ipg_gate, + rtc_ipg_gate, pwm_ipg_gate, owire_ipg_gate, lcdc_ipg_gate, + kpp_ipg_gate, iim_ipg_gate, i2c2_ipg_gate, i2c1_ipg_gate, + gpt6_ipg_gate, gpt5_ipg_gate, gpt4_ipg_gate, gpt3_ipg_gate, + gpt2_ipg_gate, gpt1_ipg_gate, gpio_ipg_gate, fec_ipg_gate, + emma_ipg_gate, dma_ipg_gate, cspi3_ipg_gate, cspi2_ipg_gate, + cspi1_ipg_gate, nfc_baud_gate, ssi2_baud_gate, ssi1_baud_gate, + vpu_baud_gate, per4_gate, per3_gate, per2_gate, per1_gate, + usb_ahb_gate, slcdc_ahb_gate, sahara_ahb_gate, lcdc_ahb_gate, + vpu_ahb_gate, fec_ahb_gate, emma_ahb_gate, emi_ahb_gate, dma_ahb_gate, + csi_ahb_gate, brom_ahb_gate, ata_ahb_gate, wdog_ipg_gate, usb_ipg_gate, + uart6_ipg_gate, uart5_ipg_gate, uart4_ipg_gate, uart3_ipg_gate, + uart2_ipg_gate, uart1_ipg_gate, ckih_div1p5, fpm, mpll_osc_sel, + mpll_sel, spll_gate, clk_max }; static struct clk *clks[clk_max]; @@ -103,6 +118,16 @@ static const char *cpu_sel_clks[] = { "mpll", }; +static const char *mpll_sel_clks[] = { + "fpm", + "mpll_osc_sel", +}; + +static const char *mpll_osc_sel_clks[] = { + "ckih", + "ckih_div1p5", +}; + static const char *clko_sel_clks[] = { "ckil", NULL, @@ -152,7 +177,16 @@ static int imx27_ccm_probe(struct device_d *dev) clks[dummy] = clk_fixed("dummy", 0); clks[ckih] = clk_fixed("ckih", 26000000); clks[ckil] = clk_fixed("ckil", 32768); - clks[mpll] = imx_clk_pllv1("mpll", "ckih", base + CCM_MPCTL0); + clks[fpm] = imx_clk_fixed_factor("fpm", "ckil", 1024, 1); + clks[ckih_div1p5] = imx_clk_fixed_factor("ckih_div1p5", "ckih", 2, 3); + + clks[mpll_osc_sel] = imx_clk_mux("mpll_osc_sel", base + CCM_CSCR, 4, 1, + mpll_osc_sel_clks, + ARRAY_SIZE(mpll_osc_sel_clks)); + clks[mpll_sel] = imx_clk_mux("mpll_sel", base + CCM_CSCR, 16, 1, mpll_sel_clks, + ARRAY_SIZE(mpll_sel_clks)); + + clks[mpll] = imx_clk_pllv1("mpll", "mpll_sel", base + CCM_MPCTL0); clks[spll] = imx_clk_pllv1("spll", "ckih", base + CCM_SPCTL0); clks[mpll_main2] = imx_clk_fixed_factor("mpll_main2", "mpll", 2, 3); @@ -179,7 +213,7 @@ static int imx27_ccm_probe(struct device_d *dev) else clks[cpu_div] = imx_clk_divider("cpu_div", "cpu_sel", base + CCM_CSCR, 13, 3); clks[clko_div] = imx_clk_divider("clko_div", "clko_sel", base + CCM_PCDR0, 22, 3); - clks[lcdc_per_gate] = imx_clk_gate("lcdc_per_gate", "per3_div", base + CCM_PCCR1, 8); + clks[per3_gate] = imx_clk_gate("per3_gate", "per3_div", base + CCM_PCCR1, 8); clks[lcdc_ahb_gate] = imx_clk_gate("lcdc_ahb_gate", "ahb", base + CCM_PCCR1, 15); clks[lcdc_ipg_gate] = imx_clk_gate("lcdc_ipg_gate", "ipg", base + CCM_PCCR0, 14); @@ -203,7 +237,7 @@ static int imx27_ccm_probe(struct device_d *dev) clkdev_add_physbase(clks[per2_div], MX27_SDHC1_BASE_ADDR, NULL); clkdev_add_physbase(clks[per2_div], MX27_SDHC2_BASE_ADDR, NULL); clkdev_add_physbase(clks[per2_div], MX27_SDHC3_BASE_ADDR, NULL); - clkdev_add_physbase(clks[lcdc_per_gate], MX27_LCDC_BASE_ADDR, NULL); + clkdev_add_physbase(clks[per3_gate], MX27_LCDC_BASE_ADDR, NULL); clkdev_add_physbase(clks[lcdc_ahb_gate], MX27_LCDC_BASE_ADDR, "ahb"); clkdev_add_physbase(clks[lcdc_ipg_gate], MX27_LCDC_BASE_ADDR, "ipg"); clkdev_add_physbase(clks[ipg], MX27_FEC_BASE_ADDR, NULL); -- 1.8.5.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox