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-rw-r--r--src/soc/qualcomm/sc7180/Makefile.inc4
-rw-r--r--src/soc/qualcomm/sc7180/bootblock.c2
-rw-r--r--src/soc/qualcomm/sc7180/clock.c227
-rw-r--r--src/soc/qualcomm/sc7180/include/soc/addressmap.h2
-rw-r--r--src/soc/qualcomm/sc7180/include/soc/clock.h214
5 files changed, 448 insertions, 1 deletions
diff --git a/src/soc/qualcomm/sc7180/Makefile.inc b/src/soc/qualcomm/sc7180/Makefile.inc
index 6d2a3e7c08..6b492d5784 100644
--- a/src/soc/qualcomm/sc7180/Makefile.inc
+++ b/src/soc/qualcomm/sc7180/Makefile.inc
@@ -8,12 +8,14 @@ bootblock-y += timer.c
bootblock-y += spi.c
bootblock-y += gpio.c
bootblock-$(CONFIG_DRIVERS_UART) += uart_bitbang.c
+bootblock-y += clock.c
################################################################################
verstage-y += timer.c
verstage-y += spi.c
verstage-y += gpio.c
verstage-$(CONFIG_DRIVERS_UART) += uart_bitbang.c
+verstage-y += clock.c
################################################################################
romstage-y += cbmem.c
@@ -25,6 +27,7 @@ romstage-y += mmu.c
romstage-y += spi.c
romstage-y += gpio.c
romstage-$(CONFIG_DRIVERS_UART) += uart_bitbang.c
+romstage-y += clock.c
################################################################################
ramstage-y += soc.c
@@ -32,6 +35,7 @@ ramstage-y += timer.c
ramstage-y += spi.c
ramstage-y += gpio.c
ramstage-$(CONFIG_DRIVERS_UART) += uart_bitbang.c
+ramstage-y += clock.c
################################################################################
diff --git a/src/soc/qualcomm/sc7180/bootblock.c b/src/soc/qualcomm/sc7180/bootblock.c
index b9b86609ad..bf80bff706 100644
--- a/src/soc/qualcomm/sc7180/bootblock.c
+++ b/src/soc/qualcomm/sc7180/bootblock.c
@@ -14,9 +14,11 @@
*/
#include <bootblock_common.h>
+#include <soc/clock.h>
#include <soc/mmu.h>
void bootblock_soc_init(void)
{
sc7180_mmu_init();
+ clock_init();
}
diff --git a/src/soc/qualcomm/sc7180/clock.c b/src/soc/qualcomm/sc7180/clock.c
new file mode 100644
index 0000000000..97b7b280ca
--- /dev/null
+++ b/src/soc/qualcomm/sc7180/clock.c
@@ -0,0 +1,227 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2019 Qualcomm Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <assert.h>
+#include <commonlib/helpers.h>
+#include <device/mmio.h>
+#include <soc/clock.h>
+#include <types.h>
+
+#define DIV(div) (2 * div - 1)
+
+struct clock_config qup_cfg[] = {
+ {
+ .hz = 7372800,
+ .src = SRC_GPLL0_EVEN_300MHZ,
+ .div = DIV(1),
+ .m = 384,
+ .n = 15625,
+ .d_2 = 15625,
+ },
+ {
+ .hz = SRC_XO_HZ, /* 19.2KHz */
+ .src = SRC_XO_19_2MHZ,
+ .div = DIV(1),
+ }
+};
+
+struct clock_config qspi_core_cfg[] = {
+ {
+ .hz = SRC_XO_HZ, /* 19.2KHz */
+ .src = SRC_XO_19_2MHZ,
+ .div = DIV(1),
+ },
+ {
+ .hz = 100 * MHz,
+ .src = SRC_GPLL0_EVEN_300MHZ,
+ .div = DIV(3),
+ },
+ {
+ .hz = 150 * MHz,
+ .src = SRC_GPLL0_EVEN_300MHZ,
+ .div = DIV(2),
+ },
+ {
+ .hz = GPLL0_EVEN_HZ, /* 300MHz */
+ .src = SRC_GPLL0_EVEN_300MHZ,
+ .div = DIV(1),
+ }
+};
+
+static int clock_configure_gpll0(void)
+{
+ setbits_le32(&gcc->gpll0.user_ctl_u, 1 << SCALE_FREQ_SHFT);
+
+ /* Keep existing GPLL0 configuration, in RUN mode @600Mhz. */
+ setbits_le32(&gcc->gpll0.user_ctl,
+ 1 << CLK_CTL_GPLL_PLLOUT_EVEN_SHFT |
+ 1 << CLK_CTL_GPLL_PLLOUT_MAIN_SHFT |
+ 1 << CLK_CTL_GPLL_PLLOUT_ODD_SHFT);
+
+ return 0;
+}
+
+static int clock_configure_mnd(struct sc7180_clock *clk, uint32_t m, uint32_t n,
+ uint32_t d_2)
+{
+ struct sc7180_mnd_clock *mnd = (struct sc7180_mnd_clock *)clk;
+ setbits_le32(&clk->rcg_cfg,
+ RCG_MODE_DUAL_EDGE << CLK_CTL_CFG_MODE_SHFT);
+
+ write32(&mnd->m, m & CLK_CTL_RCG_MND_BMSK);
+ write32(&mnd->n, ~(n-m) & CLK_CTL_RCG_MND_BMSK);
+ write32(&mnd->d_2, ~(d_2) & CLK_CTL_RCG_MND_BMSK);
+
+ return 0;
+}
+
+static int clock_configure(struct sc7180_clock *clk,
+ struct clock_config *clk_cfg,
+ uint32_t hz, uint32_t num_perfs)
+{
+ uint32_t reg_val;
+ uint32_t idx;
+
+ for (idx = 0; idx < num_perfs; idx++)
+ if (hz <= clk_cfg[idx].hz)
+ break;
+
+ assert(hz == clk_cfg[idx].hz);
+
+ reg_val = (clk_cfg[idx].src << CLK_CTL_CFG_SRC_SEL_SHFT) |
+ (clk_cfg[idx].div << CLK_CTL_CFG_SRC_DIV_SHFT);
+
+ /* Set clock config */
+ write32(&clk->rcg_cfg, reg_val);
+
+ if (clk_cfg[idx].m != 0)
+ clock_configure_mnd(clk, clk_cfg[idx].m, clk_cfg[idx].n,
+ clk_cfg[idx].d_2);
+
+ /* Commit config to RCG*/
+ setbits_le32(&clk->rcg_cmd, BIT(CLK_CTL_CMD_UPDATE_SHFT));
+
+ return 0;
+}
+
+static bool clock_is_off(u32 *cbcr_addr)
+{
+ return (read32(cbcr_addr) & CLK_CTL_CBC_CLK_OFF_BMSK);
+}
+
+static int clock_enable_vote(void *cbcr_addr, void *vote_addr,
+ uint32_t vote_bit)
+{
+ /* Set clock vote bit */
+ setbits_le32(vote_addr, BIT(vote_bit));
+
+ /* Ensure clock is enabled */
+ while (clock_is_off(cbcr_addr))
+ ;
+
+ return 0;
+}
+
+static int clock_enable(void *cbcr_addr)
+{
+ /* Set clock enable bit */
+ setbits_le32(cbcr_addr, BIT(CLK_CTL_CBC_CLK_EN_SHFT));
+
+ /* Ensure clock is enabled */
+ while (clock_is_off(cbcr_addr))
+ ;
+
+ return 0;
+}
+
+void clock_reset_aop(void)
+{
+ /* Bring AOP out of RESET */
+ clrbits_le32(&aoss->aoss_cc_apcs_misc, BIT(AOP_RESET_SHFT));
+}
+
+void clock_configure_qspi(uint32_t hz)
+{
+ clock_configure(&gcc->qspi_core,
+ qspi_core_cfg, hz,
+ ARRAY_SIZE(qspi_core_cfg));
+ clock_enable(&gcc->qspi_cnoc_ahb_cbcr);
+ clock_enable(&gcc->qspi_core.cbcr);
+}
+
+int clock_reset_bcr(void *bcr_addr, bool reset)
+{
+ struct sc7180_bcr *bcr = bcr_addr;
+
+ if (reset)
+ setbits_le32(bcr, BIT(CLK_CTL_BCR_BLK_ARES_SHFT));
+ else
+ clrbits_le32(bcr, BIT(CLK_CTL_BCR_BLK_ARES_SHFT));
+
+ return 0;
+}
+
+void clock_configure_qup(int qup, uint32_t hz)
+{
+ int s = qup % QUP_WRAP1_S0;
+ struct sc7180_qupv3_clock *qup_clk = qup < QUP_WRAP1_S0 ?
+ &gcc->qup_wrap0_s[s] : &gcc->qup_wrap1_s[s];
+
+ clock_configure(&qup_clk->mnd_clk.clock, qup_cfg, hz,
+ ARRAY_SIZE(qup_cfg));
+}
+
+void clock_enable_qup(int qup)
+{
+ int s = qup % QUP_WRAP1_S0;
+ int clk_en_off = qup < QUP_WRAP1_S0 ?
+ QUPV3_WRAP0_CLK_ENA_S(s) : QUPV3_WRAP1_CLK_ENA_S(s);
+ struct sc7180_qupv3_clock *qup_clk = qup < QUP_WRAP1_S0 ?
+ &gcc->qup_wrap0_s[s] : &gcc->qup_wrap1_s[s];
+
+ clock_enable_vote(&qup_clk->mnd_clk, &gcc->apcs_clk_br_en1,
+ clk_en_off);
+}
+
+void clock_init(void)
+{
+ clock_configure_gpll0();
+
+ clock_enable_vote(&gcc->qup_wrap0_core_2x.cbcr,
+ &gcc->apcs_clk_br_en1,
+ QUPV3_WRAP0_CORE_2X_CLK_ENA);
+ clock_enable_vote(&gcc->qup_wrap0_core_cbcr,
+ &gcc->apcs_clk_br_en1,
+ QUPV3_WRAP0_CORE_CLK_ENA);
+ clock_enable_vote(&gcc->qup_wrap0_m_ahb_cbcr,
+ &gcc->apcs_clk_br_en1,
+ QUPV3_WRAP_0_M_AHB_CLK_ENA);
+ clock_enable_vote(&gcc->qup_wrap0_s_ahb_cbcr,
+ &gcc->apcs_clk_br_en1,
+ QUPV3_WRAP_0_S_AHB_CLK_ENA);
+
+ clock_enable_vote(&gcc->qup_wrap1_core_2x_cbcr,
+ &gcc->apcs_clk_br_en1,
+ QUPV3_WRAP1_CORE_2X_CLK_ENA);
+ clock_enable_vote(&gcc->qup_wrap1_core_cbcr,
+ &gcc->apcs_clk_br_en1,
+ QUPV3_WRAP1_CORE_CLK_ENA);
+ clock_enable_vote(&gcc->qup_wrap1_m_ahb_cbcr,
+ &gcc->apcs_clk_br_en1,
+ QUPV3_WRAP_1_M_AHB_CLK_ENA);
+ clock_enable_vote(&gcc->qup_wrap1_s_ahb_cbcr,
+ &gcc->apcs_clk_br_en1,
+ QUPV3_WRAP_1_S_AHB_CLK_ENA);
+}
diff --git a/src/soc/qualcomm/sc7180/include/soc/addressmap.h b/src/soc/qualcomm/sc7180/include/soc/addressmap.h
index ffacf55681..e3941899f6 100644
--- a/src/soc/qualcomm/sc7180/include/soc/addressmap.h
+++ b/src/soc/qualcomm/sc7180/include/soc/addressmap.h
@@ -1,7 +1,7 @@
/*
* This file is part of the coreboot project.
*
- * Copyright (c) 2018-2019 Qualcomm Technologies
+ * Copyright (c) 2019 Qualcomm Technologies
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
diff --git a/src/soc/qualcomm/sc7180/include/soc/clock.h b/src/soc/qualcomm/sc7180/include/soc/clock.h
new file mode 100644
index 0000000000..39cde8c1bc
--- /dev/null
+++ b/src/soc/qualcomm/sc7180/include/soc/clock.h
@@ -0,0 +1,214 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2019 Qualcomm Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <soc/addressmap.h>
+#include <types.h>
+
+#ifndef __SOC_QUALCOMM_SC7180_CLOCK_H__
+#define __SOC_QUALCOMM_SC7180_CLOCK_H__
+
+#define QUPV3_WRAP_0_M_AHB_CLK_ENA 6
+#define QUPV3_WRAP_0_S_AHB_CLK_ENA 7
+#define QUPV3_WRAP0_CORE_2X_CLK_ENA 9
+#define QUPV3_WRAP0_CORE_CLK_ENA 8
+#define QUPV3_WRAP1_CORE_2X_CLK_ENA 18
+#define QUPV3_WRAP1_CORE_CLK_ENA 19
+#define QUPV3_WRAP_1_M_AHB_CLK_ENA 20
+#define QUPV3_WRAP_1_S_AHB_CLK_ENA 21
+#define QUPV3_WRAP0_CLK_ENA_S(idx) (10 + idx)
+#define QUPV3_WRAP1_CLK_ENA_S(idx) (22 + idx)
+
+#define SRC_XO_HZ (19200 * KHz)
+#define GPLL0_EVEN_HZ (300 * MHz)
+#define GPLL0_MAIN_HZ (600 * MHz)
+
+#define SRC_XO_19_2MHZ 0
+#define SRC_GPLL0_MAIN_600MHZ 1
+#define SRC_GPLL0_EVEN_300MHZ 6
+
+#define AOP_RESET_SHFT 0
+#define RCG_MODE_DUAL_EDGE 2
+
+#define SCALE_FREQ_SHFT 11
+
+struct sc7180_clock {
+ u32 cbcr;
+ u32 rcg_cmd;
+ u32 rcg_cfg;
+};
+
+struct sc7180_mnd_clock {
+ struct sc7180_clock clock;
+ u32 m;
+ u32 n;
+ u32 d_2;
+};
+
+struct sc7180_qupv3_clock {
+ struct sc7180_mnd_clock mnd_clk;
+ u8 _res[0x130 - 0x18];
+};
+
+struct sc7180_gpll {
+ u32 mode;
+ u32 l_val;
+ u32 cal_l_val;
+ u32 user_ctl;
+ u32 user_ctl_u;
+ u32 config_ctl;
+ u32 config_ctl_u;
+ u32 test_ctl;
+ u32 test_ctl_u;
+ u8 _res[0x1000 - 0x24];
+};
+
+struct sc7180_gcc {
+ struct sc7180_gpll gpll0;
+ u8 _res0[0xf000 - 0x1000];
+ u32 usb30_prim_bcr;
+ u8 _res1[0x17000 - 0xf004];
+ u32 qup_wrap0_bcr;
+ u32 qup_wrap0_m_ahb_cbcr;
+ u32 qup_wrap0_s_ahb_cbcr;
+ u32 qup_wrap0_core_cbcr;
+ u32 qup_wrap0_core_cdivr;
+ struct sc7180_clock qup_wrap0_core_2x;
+ u8 _res2[0x17030 - 0x17020];
+ struct sc7180_qupv3_clock qup_wrap0_s[6];
+ u8 _res3[0x18000 - 0x17750];
+ u32 qup_wrap1_bcr;
+ u32 qup_wrap1_core_2x_cbcr;
+ u32 qup_wrap1_core_cbcr;
+ u32 qup_wrap1_m_ahb_cbcr;
+ u32 qup_wrap1_s_ahb_cbcr;
+ struct sc7180_qupv3_clock qup_wrap1_s[6];
+ u8 _res4[0x18994 - 0x18734];
+ u32 qup_wrap1_core_cdivr;
+ u8 _res5[0x26000 - 0x18998];
+ u32 qusb2phy_prim_bcr;
+ u8 _res6[0x4b000 - 0x26004];
+ u32 qspi_bcr;
+ u32 qspi_cnoc_ahb_cbcr;
+ struct sc7180_clock qspi_core;
+ u8 _res7[0x50000 - 0x4b014];
+ u32 usb3_phy_prim_bcr;
+ u32 usb3phy_phy_prim_bcr;
+ u32 usb3_dp_phy_prim_bcr;
+ u32 usb3_phy_sec_bcr;
+ u32 usb3phy_phy_sec_bcr;
+ u32 usb3_dp_phy_sec_bcr;
+ u8 _res8[0x52008 - 0x50018];
+ u32 apcs_clk_br_en1;
+ u8 _res9[0x1000000 - 0x5200c];
+};
+check_member(sc7180_gcc, usb30_prim_bcr, 0xf000);
+check_member(sc7180_gcc, qup_wrap0_bcr, 0x17000);
+check_member(sc7180_gcc, qup_wrap1_bcr, 0x18000);
+check_member(sc7180_gcc, qup_wrap1_core_cdivr, 0x18994);
+check_member(sc7180_gcc, qusb2phy_prim_bcr, 0x26000);
+check_member(sc7180_gcc, usb3phy_phy_prim_bcr, 0x50004);
+check_member(sc7180_gcc, usb3_phy_prim_bcr, 0x50000);
+check_member(sc7180_gcc, apcs_clk_br_en1, 0x52008);
+
+struct sc7180_aoss {
+ u8 _res[0x5002c];
+ u32 aoss_cc_apcs_misc;
+};
+
+enum clk_ctl_gpll_user_ctl {
+ CLK_CTL_GPLL_PLLOUT_EVEN_BMSK = 0x2,
+ CLK_CTL_GPLL_PLLOUT_MAIN_SHFT = 0,
+ CLK_CTL_GPLL_PLLOUT_EVEN_SHFT = 1,
+ CLK_CTL_GPLL_PLLOUT_ODD_SHFT = 2
+};
+
+enum clk_ctl_cfg_rcgr {
+ CLK_CTL_CFG_HW_CTL_BMSK = 0x100000,
+ CLK_CTL_CFG_HW_CTL_SHFT = 20,
+ CLK_CTL_CFG_MODE_BMSK = 0x3000,
+ CLK_CTL_CFG_MODE_SHFT = 12,
+ CLK_CTL_CFG_SRC_SEL_BMSK = 0x700,
+ CLK_CTL_CFG_SRC_SEL_SHFT = 8,
+ CLK_CTL_CFG_SRC_DIV_BMSK = 0x1F,
+ CLK_CTL_CFG_SRC_DIV_SHFT = 0
+};
+
+enum clk_ctl_cmd_rcgr {
+ CLK_CTL_CMD_ROOT_OFF_BMSK = 0x80000000,
+ CLK_CTL_CMD_ROOT_OFF_SHFT = 31,
+ CLK_CTL_CMD_ROOT_EN_BMSK = 0x2,
+ CLK_CTL_CMD_ROOT_EN_SHFT = 1,
+ CLK_CTL_CMD_UPDATE_BMSK = 0x1,
+ CLK_CTL_CMD_UPDATE_SHFT = 0
+};
+
+enum clk_ctl_cbcr {
+ CLK_CTL_CBC_CLK_OFF_BMSK = 0x80000000,
+ CLK_CTL_CBC_CLK_OFF_SHFT = 31,
+ CLK_CTL_CBC_CLK_EN_BMSK = 0x1,
+ CLK_CTL_CBC_CLK_EN_SHFT = 0
+};
+
+enum clk_ctl_rcg_mnd {
+ CLK_CTL_RCG_MND_BMSK = 0xFFFF,
+ CLK_CTL_RCG_MND_SHFT = 0,
+};
+
+enum clk_ctl_bcr {
+ CLK_CTL_BCR_BLK_ARES_BMSK = 0x1,
+ CLK_CTL_BCR_BLK_ARES_SHFT = 0,
+};
+
+enum clk_qup {
+ QUP_WRAP0_S0,
+ QUP_WRAP0_S1,
+ QUP_WRAP0_S2,
+ QUP_WRAP0_S3,
+ QUP_WRAP0_S4,
+ QUP_WRAP0_S5,
+ QUP_WRAP1_S0,
+ QUP_WRAP1_S1,
+ QUP_WRAP1_S2,
+ QUP_WRAP1_S3,
+ QUP_WRAP1_S4,
+ QUP_WRAP1_S5,
+};
+
+struct clock_config {
+ uint32_t hz;
+ uint8_t src;
+ uint8_t div;
+ uint16_t m;
+ uint16_t n;
+ uint16_t d_2;
+};
+
+struct mdss_clock_config {
+ const char *clk_name;
+ uintptr_t rcgr;
+ uintptr_t cbcr;
+};
+
+static struct sc7180_gcc *const gcc = (void *)GCC_BASE;
+static struct sc7180_aoss *const aoss = (void *)AOSS_CC_BASE;
+
+void clock_init(void);
+void clock_reset_aop(void);
+void clock_configure_qspi(uint32_t hz);
+int clock_reset_bcr(void *bcr_addr, bool reset);
+void clock_configure_qup(int qup, uint32_t hz);
+void clock_enable_qup(int qup);
+
+#endif // __SOC_QUALCOMM_SC7180_CLOCK_H__
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 05:04:44 +0000