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@@ -119,6 +119,11 @@ static unsigned long get_rate_nfc(struct clk *clk)
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return get_rate_per(8);
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}
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+static unsigned long get_rate_gpt(struct clk *clk)
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+{
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+ return get_rate_per(5);
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+}
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+
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static unsigned long get_rate_otg(struct clk *clk)
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{
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return 48000000; /* FIXME */
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@@ -144,7 +149,7 @@ static void clk_cgcr_disable(struct clk *clk)
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__raw_writel(reg, clk->enable_reg);
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}
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-#define DEFINE_CLOCK(name, i, er, es, gr, sr) \
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+#define DEFINE_CLOCK(name, i, er, es, gr, sr, s) \
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static struct clk name = { \
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.id = i, \
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.enable_reg = CRM_BASE + er, \
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@@ -153,27 +158,30 @@ static void clk_cgcr_disable(struct clk *clk)
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.set_rate = sr, \
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.enable = clk_cgcr_enable, \
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.disable = clk_cgcr_disable, \
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+ .secondary = s, \
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}
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-DEFINE_CLOCK(gpt_clk, 0, CCM_CGCR0, 5, get_rate_ipg, NULL);
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-DEFINE_CLOCK(cspi1_clk, 0, CCM_CGCR1, 5, get_rate_ipg, NULL);
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-DEFINE_CLOCK(cspi2_clk, 0, CCM_CGCR1, 6, get_rate_ipg, NULL);
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-DEFINE_CLOCK(cspi3_clk, 0, CCM_CGCR1, 7, get_rate_ipg, NULL);
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-DEFINE_CLOCK(uart1_clk, 0, CCM_CGCR2, 14, get_rate_uart, NULL);
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-DEFINE_CLOCK(uart2_clk, 0, CCM_CGCR2, 15, get_rate_uart, NULL);
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-DEFINE_CLOCK(uart3_clk, 0, CCM_CGCR2, 16, get_rate_uart, NULL);
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-DEFINE_CLOCK(uart4_clk, 0, CCM_CGCR2, 17, get_rate_uart, NULL);
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-DEFINE_CLOCK(uart5_clk, 0, CCM_CGCR2, 18, get_rate_uart, NULL);
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-DEFINE_CLOCK(nfc_clk, 0, CCM_CGCR0, 8, get_rate_nfc, NULL);
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-DEFINE_CLOCK(usbotg_clk, 0, CCM_CGCR0, 28, get_rate_otg, NULL);
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-DEFINE_CLOCK(pwm1_clk, 0, CCM_CGCR1, 31, get_rate_ipg, NULL);
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-DEFINE_CLOCK(pwm2_clk, 0, CCM_CGCR2, 0, get_rate_ipg, NULL);
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-DEFINE_CLOCK(pwm3_clk, 0, CCM_CGCR2, 1, get_rate_ipg, NULL);
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-DEFINE_CLOCK(pwm4_clk, 0, CCM_CGCR2, 2, get_rate_ipg, NULL);
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-DEFINE_CLOCK(kpp_clk, 0, CCM_CGCR1, 28, get_rate_ipg, NULL);
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-DEFINE_CLOCK(tsc_clk, 0, CCM_CGCR2, 13, get_rate_ipg, NULL);
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-DEFINE_CLOCK(i2c_clk, 0, CCM_CGCR0, 6, get_rate_i2c, NULL);
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-DEFINE_CLOCK(fec_clk, 0, CCM_CGCR0, 23, get_rate_ipg, NULL);
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+DEFINE_CLOCK(gpt_clk, 0, CCM_CGCR0, 5, get_rate_gpt, NULL, NULL);
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+DEFINE_CLOCK(uart_per_clk, 0, CCM_CGCR0, 15, get_rate_uart, NULL, NULL);
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+DEFINE_CLOCK(cspi1_clk, 0, CCM_CGCR1, 5, get_rate_ipg, NULL, NULL);
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+DEFINE_CLOCK(cspi2_clk, 0, CCM_CGCR1, 6, get_rate_ipg, NULL, NULL);
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+DEFINE_CLOCK(cspi3_clk, 0, CCM_CGCR1, 7, get_rate_ipg, NULL, NULL);
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+DEFINE_CLOCK(fec_ahb_clk, 0, CCM_CGCR0, 23, NULL, NULL, NULL);
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+DEFINE_CLOCK(uart1_clk, 0, CCM_CGCR2, 14, get_rate_uart, NULL, &uart_per_clk);
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+DEFINE_CLOCK(uart2_clk, 0, CCM_CGCR2, 15, get_rate_uart, NULL, &uart_per_clk);
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+DEFINE_CLOCK(uart3_clk, 0, CCM_CGCR2, 16, get_rate_uart, NULL, &uart_per_clk);
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+DEFINE_CLOCK(uart4_clk, 0, CCM_CGCR2, 17, get_rate_uart, NULL, &uart_per_clk);
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+DEFINE_CLOCK(uart5_clk, 0, CCM_CGCR2, 18, get_rate_uart, NULL, &uart_per_clk);
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+DEFINE_CLOCK(nfc_clk, 0, CCM_CGCR0, 8, get_rate_nfc, NULL, NULL);
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+DEFINE_CLOCK(usbotg_clk, 0, CCM_CGCR0, 28, get_rate_otg, NULL, NULL);
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+DEFINE_CLOCK(pwm1_clk, 0, CCM_CGCR1, 31, get_rate_ipg, NULL, NULL);
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+DEFINE_CLOCK(pwm2_clk, 0, CCM_CGCR2, 0, get_rate_ipg, NULL, NULL);
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+DEFINE_CLOCK(pwm3_clk, 0, CCM_CGCR2, 1, get_rate_ipg, NULL, NULL);
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+DEFINE_CLOCK(pwm4_clk, 0, CCM_CGCR2, 2, get_rate_ipg, NULL, NULL);
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+DEFINE_CLOCK(kpp_clk, 0, CCM_CGCR1, 28, get_rate_ipg, NULL, NULL);
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+DEFINE_CLOCK(tsc_clk, 0, CCM_CGCR2, 13, get_rate_ipg, NULL, NULL);
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+DEFINE_CLOCK(i2c_clk, 0, CCM_CGCR0, 6, get_rate_i2c, NULL, NULL);
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+DEFINE_CLOCK(fec_clk, 0, CCM_CGCR1, 15, get_rate_ipg, NULL, &fec_ahb_clk);
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#define _REGISTER_CLOCK(d, n, c) \
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{ \
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@@ -208,13 +216,21 @@ static struct clk_lookup lookups[] = {
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_REGISTER_CLOCK("fec.0", NULL, fec_clk)
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};
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-int __init mx25_clocks_init(unsigned long fref)
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+int __init mx25_clocks_init(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(lookups); i++)
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clkdev_add(&lookups[i]);
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+ /* Turn off all clocks except the ones we need to survive, namely:
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+ * EMI, GPIO1-3 (CCM_CGCR1[18:16]), GPT1, IOMUXC (CCM_CGCR1[27]), IIM,
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+ * SCC
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+ */
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+ __raw_writel((1 << 19), CRM_BASE + CCM_CGCR0);
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+ __raw_writel((0xf << 16) | (3 << 26), CRM_BASE + CCM_CGCR1);
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+ __raw_writel((1 << 5), CRM_BASE + CCM_CGCR2);
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+
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mxc_timer_init(&gpt_clk, MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
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return 0;
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