diff options
author | Alexander Shiyan <shc_work@mail.ru> | 2014-06-22 17:17:06 +0400 |
---|---|---|
committer | Shawn Guo <shawn.guo@freescale.com> | 2014-07-18 12:11:31 +0400 |
commit | 652516902810841e0893ac6b09c2d0e85e847d27 (patch) | |
tree | 0a4d5bab925f58047d3b924dbb4ef90f78520ca3 /arch/arm/mach-imx | |
parent | 50b02149825dc89e3a0942f34215907e0e232eaf (diff) | |
download | linux-652516902810841e0893ac6b09c2d0e85e847d27.tar.xz |
ARM: i.MX21 clk: Clock initialization rework
This patch perform rework i.MX21 clock initialization. This includes
adding missing clocks and sort clocks by register address.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r-- | arch/arm/mach-imx/clk-imx21.c | 113 | ||||
-rw-r--r-- | arch/arm/mach-imx/clk.h | 7 |
2 files changed, 75 insertions, 45 deletions
diff --git a/arch/arm/mach-imx/clk-imx21.c b/arch/arm/mach-imx/clk-imx21.c index 4a20c665f938..d7f1561735d1 100644 --- a/arch/arm/mach-imx/clk-imx21.c +++ b/arch/arm/mach-imx/clk-imx21.c @@ -47,19 +47,23 @@ #define CCM_PMCOUNT IO_ADDR_CCM(0x30) #define CCM_WKGDCTL IO_ADDR_CCM(0x34) -static const char *mpll_sel_clks[] = { "fpm", "ckih", }; -static const char *spll_sel_clks[] = { "fpm", "ckih", }; +static const char *mpll_osc_sel_clks[] = { "ckih_gate", "ckih_div1p5", }; +static const char *mpll_sel_clks[] = { "fpm_gate", "mpll_osc_sel", }; +static const char *spll_sel_clks[] = { "fpm_gate", "mpll_osc_sel", }; +static const char *ssi_sel_clks[] = { "spll_gate", "mpll_gate", }; enum imx21_clks { - ckil, ckih, fpm, mpll_sel, spll_sel, mpll, spll, fclk, hclk, ipg, per1, + dummy, ckil, ckih, fpm, ckih_div1p5, mpll_gate, spll_gate, fpm_gate, + ckih_gate, mpll_osc_sel, ipg, hclk, mpll_sel, spll_sel, ssi1_sel, + ssi2_sel, usb_div, fclk, mpll, spll, nfc_div, ssi1_div, ssi2_div, per1, per2, per3, per4, uart1_ipg_gate, uart2_ipg_gate, uart3_ipg_gate, - uart4_ipg_gate, gpt1_ipg_gate, gpt2_ipg_gate, gpt3_ipg_gate, - pwm_ipg_gate, sdhc1_ipg_gate, sdhc2_ipg_gate, lcdc_ipg_gate, - lcdc_hclk_gate, cspi3_ipg_gate, cspi2_ipg_gate, cspi1_ipg_gate, - per4_gate, csi_hclk_gate, usb_div, usb_gate, usb_hclk_gate, ssi1_gate, - ssi2_gate, nfc_div, nfc_gate, dma_gate, dma_hclk_gate, brom_gate, - emma_gate, emma_hclk_gate, slcdc_gate, slcdc_hclk_gate, wdog_gate, - gpio_gate, i2c_gate, kpp_gate, owire_gate, rtc_gate, clk_max + uart4_ipg_gate, cspi1_ipg_gate, cspi2_ipg_gate, ssi1_gate, ssi2_gate, + sdhc1_ipg_gate, sdhc2_ipg_gate, gpio_gate, i2c_gate, dma_gate, usb_gate, + emma_gate, ssi2_baud_gate, ssi1_baud_gate, lcdc_ipg_gate, nfc_gate, + lcdc_hclk_gate, per4_gate, bmi_gate, usb_hclk_gate, slcdc_gate, + slcdc_hclk_gate, emma_hclk_gate, brom_gate, dma_hclk_gate, + csi_hclk_gate, cspi3_ipg_gate, wdog_gate, gpt1_ipg_gate, gpt2_ipg_gate, + gpt3_ipg_gate, pwm_ipg_gate, rtc_gate, kpp_gate, owire_gate, clk_max }; static struct clk *clk[clk_max]; @@ -70,59 +74,78 @@ static struct clk *clk[clk_max]; */ int __init mx21_clocks_init(unsigned long lref, unsigned long href) { + clk[dummy] = imx_clk_fixed("dummy", 0); clk[ckil] = imx_clk_fixed("ckil", lref); clk[ckih] = imx_clk_fixed("ckih", href); clk[fpm] = imx_clk_fixed_factor("fpm", "ckil", 512, 1); - clk[mpll_sel] = imx_clk_mux("mpll_sel", CCM_CSCR, 16, 1, mpll_sel_clks, - ARRAY_SIZE(mpll_sel_clks)); - clk[spll_sel] = imx_clk_mux("spll_sel", CCM_CSCR, 17, 1, spll_sel_clks, - ARRAY_SIZE(spll_sel_clks)); + clk[ckih_div1p5] = imx_clk_fixed_factor("ckih_div1p5", "ckih_gate", 2, 3); + + clk[mpll_gate] = imx_clk_gate("mpll_gate", "mpll", CCM_CSCR, 0); + clk[spll_gate] = imx_clk_gate("spll_gate", "spll", CCM_CSCR, 1); + clk[fpm_gate] = imx_clk_gate("fpm_gate", "fpm", CCM_CSCR, 2); + clk[ckih_gate] = imx_clk_gate_dis("ckih_gate", "ckih", CCM_CSCR, 3); + clk[mpll_osc_sel] = imx_clk_mux("mpll_osc_sel", CCM_CSCR, 4, 1, mpll_osc_sel_clks, ARRAY_SIZE(mpll_osc_sel_clks)); + clk[ipg] = imx_clk_divider("ipg", "hclk", CCM_CSCR, 9, 1); + clk[hclk] = imx_clk_divider("hclk", "fclk", CCM_CSCR, 10, 4); + clk[mpll_sel] = imx_clk_mux("mpll_sel", CCM_CSCR, 16, 1, mpll_sel_clks, ARRAY_SIZE(mpll_sel_clks)); + clk[spll_sel] = imx_clk_mux("spll_sel", CCM_CSCR, 17, 1, spll_sel_clks, ARRAY_SIZE(spll_sel_clks)); + clk[ssi1_sel] = imx_clk_mux("ssi1_sel", CCM_CSCR, 19, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); + clk[ssi2_sel] = imx_clk_mux("ssi2_sel", CCM_CSCR, 20, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks)); + clk[usb_div] = imx_clk_divider("usb_div", "spll_gate", CCM_CSCR, 26, 3); + clk[fclk] = imx_clk_divider("fclk", "mpll_gate", CCM_CSCR, 29, 3); + clk[mpll] = imx_clk_pllv1("mpll", "mpll_sel", CCM_MPCTL0); + clk[spll] = imx_clk_pllv1("spll", "spll_sel", CCM_SPCTL0); - clk[fclk] = imx_clk_divider("fclk", "mpll", CCM_CSCR, 29, 3); - clk[hclk] = imx_clk_divider("hclk", "fclk", CCM_CSCR, 10, 4); - clk[ipg] = imx_clk_divider("ipg", "hclk", CCM_CSCR, 9, 1); - clk[per1] = imx_clk_divider("per1", "mpll", CCM_PCDR1, 0, 6); - clk[per2] = imx_clk_divider("per2", "mpll", CCM_PCDR1, 8, 6); - clk[per3] = imx_clk_divider("per3", "mpll", CCM_PCDR1, 16, 6); - clk[per4] = imx_clk_divider("per4", "mpll", CCM_PCDR1, 24, 6); + + clk[nfc_div] = imx_clk_divider("nfc_div", "fclk", CCM_PCDR0, 12, 4); + 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, 6); + + clk[per1] = imx_clk_divider("per1", "mpll_gate", CCM_PCDR1, 0, 6); + clk[per2] = imx_clk_divider("per2", "mpll_gate", CCM_PCDR1, 8, 6); + clk[per3] = imx_clk_divider("per3", "mpll_gate", CCM_PCDR1, 16, 6); + clk[per4] = imx_clk_divider("per4", "mpll_gate", CCM_PCDR1, 24, 6); + clk[uart1_ipg_gate] = imx_clk_gate("uart1_ipg_gate", "ipg", CCM_PCCR0, 0); clk[uart2_ipg_gate] = imx_clk_gate("uart2_ipg_gate", "ipg", CCM_PCCR0, 1); clk[uart3_ipg_gate] = imx_clk_gate("uart3_ipg_gate", "ipg", CCM_PCCR0, 2); clk[uart4_ipg_gate] = imx_clk_gate("uart4_ipg_gate", "ipg", CCM_PCCR0, 3); - clk[gpt1_ipg_gate] = imx_clk_gate("gpt1_ipg_gate", "ipg", CCM_PCCR1, 25); - clk[gpt2_ipg_gate] = imx_clk_gate("gpt2_ipg_gate", "ipg", CCM_PCCR1, 26); - clk[gpt3_ipg_gate] = imx_clk_gate("gpt3_ipg_gate", "ipg", CCM_PCCR1, 27); - clk[pwm_ipg_gate] = imx_clk_gate("pwm_ipg_gate", "ipg", CCM_PCCR1, 28); - clk[sdhc1_ipg_gate] = imx_clk_gate("sdhc1_ipg_gate", "ipg", CCM_PCCR0, 9); - clk[sdhc2_ipg_gate] = imx_clk_gate("sdhc2_ipg_gate", "ipg", CCM_PCCR0, 10); - clk[lcdc_ipg_gate] = imx_clk_gate("lcdc_ipg_gate", "ipg", CCM_PCCR0, 18); - clk[lcdc_hclk_gate] = imx_clk_gate("lcdc_hclk_gate", "hclk", CCM_PCCR0, 26); - clk[cspi3_ipg_gate] = imx_clk_gate("cspi3_ipg_gate", "ipg", CCM_PCCR1, 23); - clk[cspi2_ipg_gate] = imx_clk_gate("cspi2_ipg_gate", "ipg", CCM_PCCR0, 5); clk[cspi1_ipg_gate] = imx_clk_gate("cspi1_ipg_gate", "ipg", CCM_PCCR0, 4); - clk[per4_gate] = imx_clk_gate("per4_gate", "per4", CCM_PCCR0, 22); - clk[csi_hclk_gate] = imx_clk_gate("csi_hclk_gate", "hclk", CCM_PCCR0, 31); - clk[usb_div] = imx_clk_divider("usb_div", "spll", CCM_CSCR, 26, 3); - clk[usb_gate] = imx_clk_gate("usb_gate", "usb_div", CCM_PCCR0, 14); - clk[usb_hclk_gate] = imx_clk_gate("usb_hclk_gate", "hclk", CCM_PCCR0, 24); + clk[cspi2_ipg_gate] = imx_clk_gate("cspi2_ipg_gate", "ipg", CCM_PCCR0, 5); clk[ssi1_gate] = imx_clk_gate("ssi1_gate", "ipg", CCM_PCCR0, 6); clk[ssi2_gate] = imx_clk_gate("ssi2_gate", "ipg", CCM_PCCR0, 7); - clk[nfc_div] = imx_clk_divider("nfc_div", "ipg", CCM_PCDR0, 12, 4); - clk[nfc_gate] = imx_clk_gate("nfc_gate", "nfc_div", CCM_PCCR0, 19); + clk[sdhc1_ipg_gate] = imx_clk_gate("sdhc1_ipg_gate", "ipg", CCM_PCCR0, 9); + clk[sdhc2_ipg_gate] = imx_clk_gate("sdhc2_ipg_gate", "ipg", CCM_PCCR0, 10); + clk[gpio_gate] = imx_clk_gate("gpio_gate", "ipg", CCM_PCCR0, 11); + clk[i2c_gate] = imx_clk_gate("i2c_gate", "ipg", CCM_PCCR0, 12); clk[dma_gate] = imx_clk_gate("dma_gate", "ipg", CCM_PCCR0, 13); - clk[dma_hclk_gate] = imx_clk_gate("dma_hclk_gate", "hclk", CCM_PCCR0, 30); - clk[brom_gate] = imx_clk_gate("brom_gate", "hclk", CCM_PCCR0, 28); + clk[usb_gate] = imx_clk_gate("usb_gate", "usb_div", CCM_PCCR0, 14); clk[emma_gate] = imx_clk_gate("emma_gate", "ipg", CCM_PCCR0, 15); - clk[emma_hclk_gate] = imx_clk_gate("emma_hclk_gate", "hclk", CCM_PCCR0, 27); - clk[slcdc_gate] = imx_clk_gate("slcdc_gate", "ipg", CCM_PCCR0, 25); + clk[ssi2_baud_gate] = imx_clk_gate("ssi2_baud_gate", "ipg", CCM_PCCR0, 16); + clk[ssi1_baud_gate] = imx_clk_gate("ssi1_baud_gate", "ipg", CCM_PCCR0, 17); + clk[lcdc_ipg_gate] = imx_clk_gate("lcdc_ipg_gate", "ipg", CCM_PCCR0, 18); + clk[nfc_gate] = imx_clk_gate("nfc_gate", "nfc_div", CCM_PCCR0, 19); clk[slcdc_hclk_gate] = imx_clk_gate("slcdc_hclk_gate", "hclk", CCM_PCCR0, 21); + clk[per4_gate] = imx_clk_gate("per4_gate", "per4", CCM_PCCR0, 22); + clk[bmi_gate] = imx_clk_gate("bmi_gate", "hclk", CCM_PCCR0, 23); + clk[usb_hclk_gate] = imx_clk_gate("usb_hclk_gate", "hclk", CCM_PCCR0, 24); + clk[slcdc_gate] = imx_clk_gate("slcdc_gate", "hclk", CCM_PCCR0, 25); + clk[lcdc_hclk_gate] = imx_clk_gate("lcdc_hclk_gate", "hclk", CCM_PCCR0, 26); + clk[emma_hclk_gate] = imx_clk_gate("emma_hclk_gate", "hclk", CCM_PCCR0, 27); + clk[brom_gate] = imx_clk_gate("brom_gate", "hclk", CCM_PCCR0, 28); + clk[dma_hclk_gate] = imx_clk_gate("dma_hclk_gate", "hclk", CCM_PCCR0, 30); + clk[csi_hclk_gate] = imx_clk_gate("csi_hclk_gate", "hclk", CCM_PCCR0, 31); + + clk[cspi3_ipg_gate] = imx_clk_gate("cspi3_ipg_gate", "ipg", CCM_PCCR1, 23); clk[wdog_gate] = imx_clk_gate("wdog_gate", "ipg", CCM_PCCR1, 24); - clk[gpio_gate] = imx_clk_gate("gpio_gate", "ipg", CCM_PCCR0, 11); - clk[i2c_gate] = imx_clk_gate("i2c_gate", "ipg", CCM_PCCR0, 12); + clk[gpt1_ipg_gate] = imx_clk_gate("gpt1_ipg_gate", "ipg", CCM_PCCR1, 25); + clk[gpt2_ipg_gate] = imx_clk_gate("gpt2_ipg_gate", "ipg", CCM_PCCR1, 26); + clk[gpt3_ipg_gate] = imx_clk_gate("gpt3_ipg_gate", "ipg", CCM_PCCR1, 27); + clk[pwm_ipg_gate] = imx_clk_gate("pwm_ipg_gate", "ipg", CCM_PCCR1, 28); + clk[rtc_gate] = imx_clk_gate("rtc_gate", "ipg", CCM_PCCR1, 29); clk[kpp_gate] = imx_clk_gate("kpp_gate", "ipg", CCM_PCCR1, 30); clk[owire_gate] = imx_clk_gate("owire_gate", "ipg", CCM_PCCR1, 31); - clk[rtc_gate] = imx_clk_gate("rtc_gate", "ipg", CCM_PCCR1, 29); imx_check_clocks(clk, ARRAY_SIZE(clk)); diff --git a/arch/arm/mach-imx/clk.h b/arch/arm/mach-imx/clk.h index 7edb7dca7d57..d5ba76fee115 100644 --- a/arch/arm/mach-imx/clk.h +++ b/arch/arm/mach-imx/clk.h @@ -97,6 +97,13 @@ static inline struct clk *imx_clk_gate(const char *name, const char *parent, shift, 0, &imx_ccm_lock); } +static inline struct clk *imx_clk_gate_dis(const char *name, const char *parent, + void __iomem *reg, u8 shift) +{ + return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg, + shift, CLK_GATE_SET_TO_DISABLE, &imx_ccm_lock); +} + static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg, u8 shift, u8 width, const char **parents, int num_parents) { |