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This batch of fixes is for a handful of clock drivers from Allwinner,

Browse source 
Samsung, ST & TI. Most of them are of the "this hardware won't work
 without this fix" variety, including patches that fix platforms that did
 not boot under certain configurations. Other fixes are the result of
 changes to the clock core introduced in 3.15 that had subtle impacts on
 the clock drivers.
 
 There are no fixes to the clock framework core in this pull request.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux

Pull clock driver fixes from Mike Turquette:
 "This batch of fixes is for a handful of clock drivers from Allwinner,
  Samsung, ST & TI.  Most of them are of the "this hardware won't work
  without this fix" variety, including patches that fix platforms that
  did not boot under certain configurations.  Other fixes are the result
  of changes to the clock core introduced in 3.15 that had subtle
  impacts on the clock drivers.

  There are no fixes to the clock framework core in this pull request"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
  clk: spear3xx: Set proper clock parent of uart1/2
  clk: spear3xx: Use proper control register offset
  clk: qcom: HDMI source sel is 3 not 2
  clk: sunxi: fix devm_ioremap_resource error detection code
  clk: s2mps11: Fix double free corruption during driver unbind
  clk: ti: am43x: Fix boot with CONFIG_SOC_AM33XX disabled
  clk: exynos5420: Remove aclk66_peric from the clock tree description
  clk/exynos5250: fix bit number for tv sysmmu clock
  clk: s3c64xx: Hookup SPI clocks correctly
  clk: samsung: exynos4: Remove SRC_MASK_ISP gates
  clk: samsung: add more aliases for s3c24xx
  clk: samsung: fix several typos to fix boot on s3c2410
  clk: ti: set CLK_SET_RATE_NO_REPARENT for ti,mux-clock
  clk: ti: am43x: Fix boot with CONFIG_SOC_AM33XX disabled
  clk: ti: dra7: return error code in failure case
  clk: ti: apll: not allocating enough data
This commit is contained in:
Linus Torvalds 2014-07-13 12:21:04 -07:00
parent 2f3870e9e8 449437778b
commit 502fde1a0a
13 changed files with 92 additions and 67 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/clk/clk-s2mps11.c
View file

@ -230,16 +230,13 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
goto err_reg;
}
s2mps11_clk->lookup = devm_kzalloc(&pdev->dev,
sizeof(struct clk_lookup), GFP_KERNEL);
s2mps11_clk->lookup = clkdev_alloc(s2mps11_clk->clk,
s2mps11_name(s2mps11_clk), NULL);
if (!s2mps11_clk->lookup) {
ret = -ENOMEM;
goto err_lup;
}
s2mps11_clk->lookup->con_id = s2mps11_name(s2mps11_clk);
s2mps11_clk->lookup->clk = s2mps11_clk->clk;
clkdev_add(s2mps11_clk->lookup);
}

2
drivers/clk/qcom/mmcc-msm8960.c
View file

@ -1209,7 +1209,7 @@ static struct clk_branch rot_clk = {
static u8 mmcc_pxo_hdmi_map[] = {
[P_PXO] = 0,
[P_HDMI_PLL] = 2,
[P_HDMI_PLL] = 3,
};
static const char *mmcc_pxo_hdmi[] = {

16
drivers/clk/samsung/clk-exynos4.c
View file

@ -925,21 +925,13 @@ static struct samsung_gate_clock exynos4x12_gate_clks[] __initdata = {
GATE(CLK_RTC, "rtc", "aclk100", E4X12_GATE_IP_PERIR, 15,
0, 0),
GATE(CLK_KEYIF, "keyif", "aclk100", E4X12_GATE_IP_PERIR, 16, 0, 0),
GATE(CLK_SCLK_PWM_ISP, "sclk_pwm_isp", "div_pwm_isp",
E4X12_SRC_MASK_ISP, 0, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_SPI0_ISP, "sclk_spi0_isp", "div_spi0_isp_pre",
E4X12_SRC_MASK_ISP, 4, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_SPI1_ISP, "sclk_spi1_isp", "div_spi1_isp_pre",
E4X12_SRC_MASK_ISP, 8, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_UART_ISP, "sclk_uart_isp", "div_uart_isp",
E4X12_SRC_MASK_ISP, 12, CLK_SET_RATE_PARENT, 0),
GATE(CLK_PWM_ISP_SCLK, "pwm_isp_sclk", "sclk_pwm_isp",
GATE(CLK_PWM_ISP_SCLK, "pwm_isp_sclk", "div_pwm_isp",
E4X12_GATE_IP_ISP, 0, 0, 0),
GATE(CLK_SPI0_ISP_SCLK, "spi0_isp_sclk", "sclk_spi0_isp",
GATE(CLK_SPI0_ISP_SCLK, "spi0_isp_sclk", "div_spi0_isp_pre",
E4X12_GATE_IP_ISP, 1, 0, 0),
GATE(CLK_SPI1_ISP_SCLK, "spi1_isp_sclk", "sclk_spi1_isp",
GATE(CLK_SPI1_ISP_SCLK, "spi1_isp_sclk", "div_spi1_isp_pre",
E4X12_GATE_IP_ISP, 2, 0, 0),
GATE(CLK_UART_ISP_SCLK, "uart_isp_sclk", "sclk_uart_isp",
GATE(CLK_UART_ISP_SCLK, "uart_isp_sclk", "div_uart_isp",
E4X12_GATE_IP_ISP, 3, 0, 0),
GATE(CLK_WDT, "watchdog", "aclk100", E4X12_GATE_IP_PERIR, 14, 0, 0),
GATE(CLK_PCM0, "pcm0", "aclk100", E4X12_GATE_IP_MAUDIO, 2,

2
drivers/clk/samsung/clk-exynos5250.c
View file

@ -661,7 +661,7 @@ static struct samsung_gate_clock exynos5250_gate_clks[] __initdata = {
GATE(CLK_RTC, "rtc", "div_aclk66", GATE_IP_PERIS, 20, 0, 0),
GATE(CLK_TMU, "tmu", "div_aclk66", GATE_IP_PERIS, 21, 0, 0),
GATE(CLK_SMMU_TV, "smmu_tv", "mout_aclk200_disp1_sub",
GATE_IP_DISP1, 2, 0, 0),
GATE_IP_DISP1, 9, 0, 0),
GATE(CLK_SMMU_FIMD1, "smmu_fimd1", "mout_aclk200_disp1_sub",
GATE_IP_DISP1, 8, 0, 0),
GATE(CLK_SMMU_2D, "smmu_2d", "div_aclk200", GATE_IP_ACP, 7, 0, 0),

83
drivers/clk/samsung/clk-exynos5420.c
View file

@ -892,8 +892,6 @@ static struct samsung_gate_clock exynos5x_gate_clks[] __initdata = {
GATE_BUS_TOP, 9, CLK_IGNORE_UNUSED, 0),
GATE(0, "aclk66_psgen", "mout_user_aclk66_psgen",
GATE_BUS_TOP, 10, CLK_IGNORE_UNUSED, 0),
GATE(CLK_ACLK66_PERIC, "aclk66_peric", "mout_user_aclk66_peric",
GATE_BUS_TOP, 11, CLK_IGNORE_UNUSED, 0),
GATE(0, "aclk266_isp", "mout_user_aclk266_isp",
GATE_BUS_TOP, 13, 0, 0),
GATE(0, "aclk166", "mout_user_aclk166",
@ -996,34 +994,61 @@ static struct samsung_gate_clock exynos5x_gate_clks[] __initdata = {
SRC_MASK_FSYS, 24, CLK_SET_RATE_PARENT, 0),
/* PERIC Block */
GATE(CLK_UART0, "uart0", "aclk66_peric", GATE_IP_PERIC, 0, 0, 0),
GATE(CLK_UART1, "uart1", "aclk66_peric", GATE_IP_PERIC, 1, 0, 0),
GATE(CLK_UART2, "uart2", "aclk66_peric", GATE_IP_PERIC, 2, 0, 0),
GATE(CLK_UART3, "uart3", "aclk66_peric", GATE_IP_PERIC, 3, 0, 0),
GATE(CLK_I2C0, "i2c0", "aclk66_peric", GATE_IP_PERIC, 6, 0, 0),
GATE(CLK_I2C1, "i2c1", "aclk66_peric", GATE_IP_PERIC, 7, 0, 0),
GATE(CLK_I2C2, "i2c2", "aclk66_peric", GATE_IP_PERIC, 8, 0, 0),
GATE(CLK_I2C3, "i2c3", "aclk66_peric", GATE_IP_PERIC, 9, 0, 0),
GATE(CLK_USI0, "usi0", "aclk66_peric", GATE_IP_PERIC, 10, 0, 0),
GATE(CLK_USI1, "usi1", "aclk66_peric", GATE_IP_PERIC, 11, 0, 0),
GATE(CLK_USI2, "usi2", "aclk66_peric", GATE_IP_PERIC, 12, 0, 0),
GATE(CLK_USI3, "usi3", "aclk66_peric", GATE_IP_PERIC, 13, 0, 0),
GATE(CLK_I2C_HDMI, "i2c_hdmi", "aclk66_peric", GATE_IP_PERIC, 14, 0, 0),
GATE(CLK_TSADC, "tsadc", "aclk66_peric", GATE_IP_PERIC, 15, 0, 0),
GATE(CLK_SPI0, "spi0", "aclk66_peric", GATE_IP_PERIC, 16, 0, 0),
GATE(CLK_SPI1, "spi1", "aclk66_peric", GATE_IP_PERIC, 17, 0, 0),
GATE(CLK_SPI2, "spi2", "aclk66_peric", GATE_IP_PERIC, 18, 0, 0),
GATE(CLK_I2S1, "i2s1", "aclk66_peric", GATE_IP_PERIC, 20, 0, 0),
GATE(CLK_I2S2, "i2s2", "aclk66_peric", GATE_IP_PERIC, 21, 0, 0),
GATE(CLK_PCM1, "pcm1", "aclk66_peric", GATE_IP_PERIC, 22, 0, 0),
GATE(CLK_PCM2, "pcm2", "aclk66_peric", GATE_IP_PERIC, 23, 0, 0),
GATE(CLK_PWM, "pwm", "aclk66_peric", GATE_IP_PERIC, 24, 0, 0),
GATE(CLK_SPDIF, "spdif", "aclk66_peric", GATE_IP_PERIC, 26, 0, 0),
GATE(CLK_USI4, "usi4", "aclk66_peric", GATE_IP_PERIC, 28, 0, 0),
GATE(CLK_USI5, "usi5", "aclk66_peric", GATE_IP_PERIC, 30, 0, 0),
GATE(CLK_USI6, "usi6", "aclk66_peric", GATE_IP_PERIC, 31, 0, 0),
GATE(CLK_UART0, "uart0", "mout_user_aclk66_peric",
GATE_IP_PERIC, 0, 0, 0),
GATE(CLK_UART1, "uart1", "mout_user_aclk66_peric",
GATE_IP_PERIC, 1, 0, 0),
GATE(CLK_UART2, "uart2", "mout_user_aclk66_peric",
GATE_IP_PERIC, 2, 0, 0),
GATE(CLK_UART3, "uart3", "mout_user_aclk66_peric",
GATE_IP_PERIC, 3, 0, 0),
GATE(CLK_I2C0, "i2c0", "mout_user_aclk66_peric",
GATE_IP_PERIC, 6, 0, 0),
GATE(CLK_I2C1, "i2c1", "mout_user_aclk66_peric",
GATE_IP_PERIC, 7, 0, 0),
GATE(CLK_I2C2, "i2c2", "mout_user_aclk66_peric",
GATE_IP_PERIC, 8, 0, 0),
GATE(CLK_I2C3, "i2c3", "mout_user_aclk66_peric",
GATE_IP_PERIC, 9, 0, 0),
GATE(CLK_USI0, "usi0", "mout_user_aclk66_peric",
GATE_IP_PERIC, 10, 0, 0),
GATE(CLK_USI1, "usi1", "mout_user_aclk66_peric",
GATE_IP_PERIC, 11, 0, 0),
GATE(CLK_USI2, "usi2", "mout_user_aclk66_peric",
GATE_IP_PERIC, 12, 0, 0),
GATE(CLK_USI3, "usi3", "mout_user_aclk66_peric",
GATE_IP_PERIC, 13, 0, 0),
GATE(CLK_I2C_HDMI, "i2c_hdmi", "mout_user_aclk66_peric",
GATE_IP_PERIC, 14, 0, 0),
GATE(CLK_TSADC, "tsadc", "mout_user_aclk66_peric",
GATE_IP_PERIC, 15, 0, 0),
GATE(CLK_SPI0, "spi0", "mout_user_aclk66_peric",
GATE_IP_PERIC, 16, 0, 0),
GATE(CLK_SPI1, "spi1", "mout_user_aclk66_peric",
GATE_IP_PERIC, 17, 0, 0),
GATE(CLK_SPI2, "spi2", "mout_user_aclk66_peric",
GATE_IP_PERIC, 18, 0, 0),
GATE(CLK_I2S1, "i2s1", "mout_user_aclk66_peric",
GATE_IP_PERIC, 20, 0, 0),
GATE(CLK_I2S2, "i2s2", "mout_user_aclk66_peric",
GATE_IP_PERIC, 21, 0, 0),
GATE(CLK_PCM1, "pcm1", "mout_user_aclk66_peric",
GATE_IP_PERIC, 22, 0, 0),
GATE(CLK_PCM2, "pcm2", "mout_user_aclk66_peric",
GATE_IP_PERIC, 23, 0, 0),
GATE(CLK_PWM, "pwm", "mout_user_aclk66_peric",
GATE_IP_PERIC, 24, 0, 0),
GATE(CLK_SPDIF, "spdif", "mout_user_aclk66_peric",
GATE_IP_PERIC, 26, 0, 0),
GATE(CLK_USI4, "usi4", "mout_user_aclk66_peric",
GATE_IP_PERIC, 28, 0, 0),
GATE(CLK_USI5, "usi5", "mout_user_aclk66_peric",
GATE_IP_PERIC, 30, 0, 0),
GATE(CLK_USI6, "usi6", "mout_user_aclk66_peric",
GATE_IP_PERIC, 31, 0, 0),
GATE(CLK_KEYIF, "keyif", "aclk66_peric", GATE_BUS_PERIC, 22, 0, 0),
GATE(CLK_KEYIF, "keyif", "mout_user_aclk66_peric",
GATE_BUS_PERIC, 22, 0, 0),
/* PERIS Block */
GATE(CLK_CHIPID, "chipid", "aclk66_psgen",

9
drivers/clk/samsung/clk-s3c2410.c
View file

@ -152,6 +152,11 @@ struct samsung_clock_alias s3c2410_common_aliases[] __initdata = {
ALIAS(HCLK, NULL, "hclk"),
ALIAS(MPLL, NULL, "mpll"),
ALIAS(FCLK, NULL, "fclk"),
ALIAS(PCLK, NULL, "watchdog"),
ALIAS(PCLK_SDI, NULL, "sdi"),
ALIAS(HCLK_NAND, NULL, "nand"),
ALIAS(PCLK_I2S, NULL, "iis"),
ALIAS(PCLK_I2C, NULL, "i2c"),
};
/* S3C2410 specific clocks */
@ -378,7 +383,7 @@ void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f,
if (!np)
s3c2410_common_clk_register_fixed_ext(ctx, xti_f);
if (current_soc == 2410) {
if (current_soc == S3C2410) {
if (_get_rate("xti") == 12 * MHZ) {
s3c2410_plls[mpll].rate_table = pll_s3c2410_12mhz_tbl;
s3c2410_plls[upll].rate_table = pll_s3c2410_12mhz_tbl;
@ -432,7 +437,7 @@ void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f,
samsung_clk_register_fixed_factor(ctx, s3c2410_ffactor,
ARRAY_SIZE(s3c2410_ffactor));
samsung_clk_register_alias(ctx, s3c2410_aliases,
ARRAY_SIZE(s3c2410_common_aliases));
ARRAY_SIZE(s3c2410_aliases));
break;
case S3C2440:
samsung_clk_register_mux(ctx, s3c2440_muxes,

6
drivers/clk/samsung/clk-s3c64xx.c
View file

@ -418,8 +418,10 @@ static struct samsung_clock_alias s3c64xx_clock_aliases[] = {
ALIAS(SCLK_MMC2, "s3c-sdhci.2", "mmc_busclk.2"),
ALIAS(SCLK_MMC1, "s3c-sdhci.1", "mmc_busclk.2"),
ALIAS(SCLK_MMC0, "s3c-sdhci.0", "mmc_busclk.2"),
ALIAS(SCLK_SPI1, "s3c6410-spi.1", "spi-bus"),
ALIAS(SCLK_SPI0, "s3c6410-spi.0", "spi-bus"),
ALIAS(PCLK_SPI1, "s3c6410-spi.1", "spi_busclk0"),
ALIAS(SCLK_SPI1, "s3c6410-spi.1", "spi_busclk2"),
ALIAS(PCLK_SPI0, "s3c6410-spi.0", "spi_busclk0"),
ALIAS(SCLK_SPI0, "s3c6410-spi.0", "spi_busclk2"),
ALIAS(SCLK_AUDIO1, "samsung-pcm.1", "audio-bus"),
ALIAS(SCLK_AUDIO1, "samsung-i2s.1", "audio-bus"),
ALIAS(SCLK_AUDIO0, "samsung-pcm.0", "audio-bus"),

16
drivers/clk/spear/spear3xx_clock.c
View file

@ -211,7 +211,7 @@ static inline void spear310_clk_init(void) { }
/* array of all spear 320 clock lookups */
#ifdef CONFIG_MACH_SPEAR320
#define SPEAR320_CONTROL_REG (soc_config_base + 0x0000)
#define SPEAR320_CONTROL_REG (soc_config_base + 0x0010)
#define SPEAR320_EXT_CTRL_REG (soc_config_base + 0x0018)
#define SPEAR320_UARTX_PCLK_MASK 0x1
@ -245,7 +245,8 @@ static const char *smii0_parents[] = { "smii_125m_pad", "ras_pll2_clk",
"ras_syn0_gclk", };
static const char *uartx_parents[] = { "ras_syn1_gclk", "ras_apb_clk", };
static void __init spear320_clk_init(void __iomem *soc_config_base)
static void __init spear320_clk_init(void __iomem *soc_config_base,
struct clk *ras_apb_clk)
{
struct clk *clk;
@ -342,6 +343,8 @@ static void __init spear320_clk_init(void __iomem *soc_config_base)
SPEAR320_CONTROL_REG, UART1_PCLK_SHIFT, UART1_PCLK_MASK,
0, &_lock);
clk_register_clkdev(clk, NULL, "a3000000.serial");
/* Enforce ras_apb_clk */
clk_set_parent(clk, ras_apb_clk);
clk = clk_register_mux(NULL, "uart2_clk", uartx_parents,
ARRAY_SIZE(uartx_parents),
@ -349,6 +352,8 @@ static void __init spear320_clk_init(void __iomem *soc_config_base)
SPEAR320_EXT_CTRL_REG, SPEAR320_UART2_PCLK_SHIFT,
SPEAR320_UARTX_PCLK_MASK, 0, &_lock);
clk_register_clkdev(clk, NULL, "a4000000.serial");
/* Enforce ras_apb_clk */
clk_set_parent(clk, ras_apb_clk);
clk = clk_register_mux(NULL, "uart3_clk", uartx_parents,
ARRAY_SIZE(uartx_parents),
@ -379,12 +384,12 @@ static void __init spear320_clk_init(void __iomem *soc_config_base)
clk_register_clkdev(clk, NULL, "60100000.serial");
}
#else
static inline void spear320_clk_init(void __iomem *soc_config_base) { }
static inline void spear320_clk_init(void __iomem *sb, struct clk *rc) { }
#endif
void __init spear3xx_clk_init(void __iomem *misc_base, void __iomem *soc_config_base)
{
struct clk *clk, *clk1;
struct clk *clk, *clk1, *ras_apb_clk;
clk = clk_register_fixed_rate(NULL, "osc_32k_clk", NULL, CLK_IS_ROOT,
32000);
@ -613,6 +618,7 @@ void __init spear3xx_clk_init(void __iomem *misc_base, void __iomem *soc_config_
clk = clk_register_gate(NULL, "ras_apb_clk", "apb_clk", 0, RAS_CLK_ENB,
RAS_APB_CLK_ENB, 0, &_lock);
clk_register_clkdev(clk, "ras_apb_clk", NULL);
ras_apb_clk = clk;
clk = clk_register_gate(NULL, "ras_32k_clk", "osc_32k_clk", 0,
RAS_CLK_ENB, RAS_32K_CLK_ENB, 0, &_lock);
@ -659,5 +665,5 @@ void __init spear3xx_clk_init(void __iomem *misc_base, void __iomem *soc_config_
else if (of_machine_is_compatible("st,spear310"))
spear310_clk_init();
else if (of_machine_is_compatible("st,spear320"))
spear320_clk_init(soc_config_base);
spear320_clk_init(soc_config_base, ras_apb_clk);
}

2
drivers/clk/sunxi/clk-sun6i-apb0-gates.c
View file

@ -29,7 +29,7 @@ static int sun6i_a31_apb0_gates_clk_probe(struct platform_device *pdev)
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
reg = devm_ioremap_resource(&pdev->dev, r);
if (!reg)
if (IS_ERR(reg))
return PTR_ERR(reg);
clk_parent = of_clk_get_parent_name(np, 0);

8
drivers/clk/ti/apll.c
View file

@ -77,13 +77,11 @@ static int dra7_apll_enable(struct clk_hw *hw)
if (i == MAX_APLL_WAIT_TRIES) {
pr_warn("clock: %s failed transition to '%s'\n",
clk_name, (state) ? "locked" : "bypassed");
} else {
r = -EBUSY;
} else
pr_debug("clock: %s transition to '%s' in %d loops\n",
clk_name, (state) ? "locked" : "bypassed", i);
r = 0;
}
return r;
}
@ -338,7 +336,7 @@ static void __init of_omap2_apll_setup(struct device_node *node)
const char *parent_name;
u32 val;
ad = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
ad = kzalloc(sizeof(*ad), GFP_KERNEL);
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
init = kzalloc(sizeof(*init), GFP_KERNEL);

5
drivers/clk/ti/dpll.c
View file

@ -161,7 +161,8 @@ cleanup:
}
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM33XX)
defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM33XX) || \
defined(CONFIG_SOC_AM43XX)
/**
* ti_clk_register_dpll_x2 - Registers a DPLLx2 clock
* @node: device node for this clock
@ -322,7 +323,7 @@ CLK_OF_DECLARE(ti_omap4_dpll_x2_clock, "ti,omap4-dpll-x2-clock",
of_ti_omap4_dpll_x2_setup);
#endif
#ifdef CONFIG_SOC_AM33XX
#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
static void __init of_ti_am3_dpll_x2_setup(struct device_node *node)
{
ti_clk_register_dpll_x2(node, &dpll_x2_ck_ops, NULL);

2
drivers/clk/ti/mux.c
View file

@ -160,7 +160,7 @@ static void of_mux_clk_setup(struct device_node *node)
u8 clk_mux_flags = 0;
u32 mask = 0;
u32 shift = 0;
u32 flags = 0;
u32 flags = CLK_SET_RATE_NO_REPARENT;
num_parents = of_clk_get_parent_count(node);
if (num_parents < 2) {

1
include/dt-bindings/clock/exynos5420.h
View file

@ -63,7 +63,6 @@
#define CLK_SCLK_MPHY_IXTAL24 161
/* gate clocks */
#define CLK_ACLK66_PERIC 256
#define CLK_UART0 257
#define CLK_UART1 258
#define CLK_UART2 259